Red Bear OS bootloader baseline from 0.1.0 pre-patched archive
This commit is contained in:
Red Bear OS
@@ -0,0 +1,2 @@
|
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/build
|
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/target
|
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@@ -0,0 +1,35 @@
|
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image: "redoxos/redoxer:latest"
|
||||
|
||||
before_script:
|
||||
- apt-get install nasm
|
||||
- rustup component add rust-src
|
||||
|
||||
stages:
|
||||
- host
|
||||
|
||||
build:i686:
|
||||
stage: host
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||||
script:
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||||
- mkdir -p target/i686
|
||||
- cd target/i686
|
||||
- TARGET=x86-unknown-none make -f ${CI_PROJECT_DIR}/Makefile -C `pwd` `pwd`/bootloader.bin `pwd`/bootloader-live.bin
|
||||
|
||||
build:x86_64:
|
||||
stage: host
|
||||
script:
|
||||
- mkdir -p target/x86_64
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||||
- cd target/x86_64
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- TARGET=x86_64-unknown-uefi make -f ${CI_PROJECT_DIR}/Makefile -C `pwd` `pwd`/bootloader.efi `pwd`/bootloader-live.efi
|
||||
|
||||
build:aarch64:
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||||
stage: host
|
||||
script:
|
||||
- mkdir -p target/aarch64
|
||||
- cd target/aarch64
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||||
- TARGET=aarch64-unknown-uefi make -f ${CI_PROJECT_DIR}/Makefile -C `pwd` `pwd`/bootloader.efi `pwd`/bootloader-live.efi
|
||||
|
||||
fmt:
|
||||
stage: host
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||||
script:
|
||||
- rustup component add rustfmt-preview
|
||||
- cargo fmt -- --check
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||||
@@ -0,0 +1,2 @@
|
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[editor]
|
||||
auto-format = false
|
||||
@@ -0,0 +1,5 @@
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||||
[[language]]
|
||||
name = "rust"
|
||||
# TODO: Add more targets (BIOS, x86_32)
|
||||
# Uncomment this line and set cargo.target to your target to get accurate completions
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||||
# config = { cargo.target = "aarch64-unknown-uefi", check.targets = ["x86_64-unknown-uefi", "aarch64-unknown-uefi"] }
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||||
Generated
+360
@@ -0,0 +1,360 @@
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||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 4
|
||||
|
||||
[[package]]
|
||||
name = "aes"
|
||||
version = "0.8.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"cipher",
|
||||
"cpufeatures",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "argon2"
|
||||
version = "0.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "db4ce4441f99dbd377ca8a8f57b698c44d0d6e712d8329b5040da5a64aa1ce73"
|
||||
dependencies = [
|
||||
"base64ct",
|
||||
"blake2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "autocfg"
|
||||
version = "1.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
|
||||
|
||||
[[package]]
|
||||
name = "base64ct"
|
||||
version = "1.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "55248b47b0caf0546f7988906588779981c43bb1bc9d0c44087278f80cdb44ba"
|
||||
|
||||
[[package]]
|
||||
name = "bit_field"
|
||||
version = "0.10.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e4b40c7323adcfc0a41c4b88143ed58346ff65a288fc144329c5c45e05d70c6"
|
||||
|
||||
[[package]]
|
||||
name = "bitflags"
|
||||
version = "1.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
|
||||
|
||||
[[package]]
|
||||
name = "bitflags"
|
||||
version = "2.9.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2261d10cca569e4643e526d8dc2e62e433cc8aba21ab764233731f8d369bf394"
|
||||
|
||||
[[package]]
|
||||
name = "blake2"
|
||||
version = "0.10.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "46502ad458c9a52b69d4d4d32775c788b7a1b85e8bc9d482d92250fc0e3f8efe"
|
||||
dependencies = [
|
||||
"digest",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "block-buffer"
|
||||
version = "0.10.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
|
||||
dependencies = [
|
||||
"generic-array",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "byteorder"
|
||||
version = "1.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"
|
||||
|
||||
[[package]]
|
||||
name = "cipher"
|
||||
version = "0.4.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
|
||||
dependencies = [
|
||||
"crypto-common",
|
||||
"inout",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cpufeatures"
|
||||
version = "0.2.17"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "crypto-common"
|
||||
version = "0.1.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
|
||||
dependencies = [
|
||||
"generic-array",
|
||||
"typenum",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "digest"
|
||||
version = "0.10.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
|
||||
dependencies = [
|
||||
"block-buffer",
|
||||
"crypto-common",
|
||||
"subtle",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "dmidecode"
|
||||
version = "0.8.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f5a070ca68f8ba202b05487d52b9ac56eaebb5b66cdd68d1a17e63174bb11e3b"
|
||||
dependencies = [
|
||||
"bitflags 1.3.2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "endian-num"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f8f59926911ef34d1efb9ea1ee8ca78385df62ce700ccf2bcb149011bd226888"
|
||||
|
||||
[[package]]
|
||||
name = "fdt"
|
||||
version = "0.2.0-alpha1"
|
||||
source = "git+https://github.com/repnop/fdt.git?rev=2fb1409edd1877c714a0aa36b6a7c5351004be54#2fb1409edd1877c714a0aa36b6a7c5351004be54"
|
||||
|
||||
[[package]]
|
||||
name = "generic-array"
|
||||
version = "0.14.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
|
||||
dependencies = [
|
||||
"typenum",
|
||||
"version_check",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "inout"
|
||||
version = "0.1.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "879f10e63c20629ecabbb64a8010319738c66a5cd0c29b02d63d272b03751d01"
|
||||
dependencies = [
|
||||
"generic-array",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.176"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "58f929b4d672ea937a23a1ab494143d968337a5f47e56d0815df1e0890ddf174"
|
||||
|
||||
[[package]]
|
||||
name = "linked_list_allocator"
|
||||
version = "0.10.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9afa463f5405ee81cdb9cc2baf37e08ec7e4c8209442b5d72c04cfb2cd6e6286"
|
||||
dependencies = [
|
||||
"spinning_top",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "lock_api"
|
||||
version = "0.4.13"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "96936507f153605bddfcda068dd804796c84324ed2510809e5b2a624c81da765"
|
||||
dependencies = [
|
||||
"autocfg",
|
||||
"scopeguard",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "log"
|
||||
version = "0.4.28"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "34080505efa8e45a4b816c349525ebe327ceaa8559756f0356cba97ef3bf7432"
|
||||
|
||||
[[package]]
|
||||
name = "lz4_flex"
|
||||
version = "0.11.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "08ab2867e3eeeca90e844d1940eab391c9dc5228783db2ed999acbc0a9ed375a"
|
||||
|
||||
[[package]]
|
||||
name = "raw-cpuid"
|
||||
version = "10.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6c297679cb867470fa8c9f67dbba74a78d78e3e98d7cf2b08d6d71540f797332"
|
||||
dependencies = [
|
||||
"bitflags 1.3.2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox-path"
|
||||
version = "0.3.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "436d45c2b6a5b159d43da708e62b25be3a4a3d5550d654b72216ade4c4bfd717"
|
||||
|
||||
[[package]]
|
||||
name = "redox_bootloader"
|
||||
version = "1.0.0"
|
||||
dependencies = [
|
||||
"bitflags 1.3.2",
|
||||
"byteorder",
|
||||
"dmidecode",
|
||||
"fdt",
|
||||
"linked_list_allocator",
|
||||
"log",
|
||||
"redox_syscall",
|
||||
"redox_uefi",
|
||||
"redox_uefi_std",
|
||||
"redoxfs",
|
||||
"spin",
|
||||
"x86",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox_syscall"
|
||||
version = "0.5.17"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
|
||||
dependencies = [
|
||||
"bitflags 2.9.4",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox_uefi"
|
||||
version = "0.1.14"
|
||||
source = "git+https://gitlab.redox-os.org/redox-os/uefi.git#26a499eeaf55d42fb24206830345e26fb8f5f835"
|
||||
|
||||
[[package]]
|
||||
name = "redox_uefi_alloc"
|
||||
version = "0.1.14"
|
||||
source = "git+https://gitlab.redox-os.org/redox-os/uefi.git#26a499eeaf55d42fb24206830345e26fb8f5f835"
|
||||
dependencies = [
|
||||
"redox_uefi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redox_uefi_std"
|
||||
version = "0.1.14"
|
||||
source = "git+https://gitlab.redox-os.org/redox-os/uefi.git#26a499eeaf55d42fb24206830345e26fb8f5f835"
|
||||
dependencies = [
|
||||
"redox_uefi",
|
||||
"redox_uefi_alloc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "redoxfs"
|
||||
version = "0.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "063eedabd74ddf71810e72aae1c73f3485ffc7b1e757d9466b9099046c05d7be"
|
||||
dependencies = [
|
||||
"aes",
|
||||
"argon2",
|
||||
"base64ct",
|
||||
"bitflags 2.9.4",
|
||||
"endian-num",
|
||||
"libc",
|
||||
"log",
|
||||
"lz4_flex",
|
||||
"redox-path",
|
||||
"redox_syscall",
|
||||
"seahash",
|
||||
"uuid",
|
||||
"xts-mode",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "scopeguard"
|
||||
version = "1.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
|
||||
|
||||
[[package]]
|
||||
name = "seahash"
|
||||
version = "4.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
|
||||
|
||||
[[package]]
|
||||
name = "spin"
|
||||
version = "0.9.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
|
||||
dependencies = [
|
||||
"lock_api",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "spinning_top"
|
||||
version = "0.2.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5b9eb1a2f4c41445a3a0ff9abc5221c5fcd28e1f13cd7c0397706f9ac938ddb0"
|
||||
dependencies = [
|
||||
"lock_api",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "subtle"
|
||||
version = "2.6.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
|
||||
|
||||
[[package]]
|
||||
name = "typenum"
|
||||
version = "1.18.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1dccffe3ce07af9386bfd29e80c0ab1a8205a2fc34e4bcd40364df902cfa8f3f"
|
||||
|
||||
[[package]]
|
||||
name = "uuid"
|
||||
version = "1.18.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2f87b8aa10b915a06587d0dec516c282ff295b475d94abf425d62b57710070a2"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
|
||||
|
||||
[[package]]
|
||||
name = "x86"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2781db97787217ad2a2845c396a5efe286f87467a5810836db6d74926e94a385"
|
||||
dependencies = [
|
||||
"bit_field",
|
||||
"bitflags 1.3.2",
|
||||
"raw-cpuid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "xts-mode"
|
||||
version = "0.5.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09cbddb7545ca0b9ffa7bdc653e8743303e1712687a6918ced25f2cdbed42520"
|
||||
dependencies = [
|
||||
"byteorder",
|
||||
"cipher",
|
||||
]
|
||||
+52
@@ -0,0 +1,52 @@
|
||||
[package]
|
||||
name = "redox_bootloader"
|
||||
version = "1.0.0"
|
||||
edition = "2024"
|
||||
|
||||
# UEFI uses bin target
|
||||
[[bin]]
|
||||
name = "bootloader"
|
||||
path = "src/main.rs"
|
||||
|
||||
# BIOS uses lib target
|
||||
[lib]
|
||||
name = "bootloader"
|
||||
path = "src/main.rs"
|
||||
crate-type = ["staticlib"]
|
||||
|
||||
[dependencies]
|
||||
bitflags = "1.3.2"
|
||||
linked_list_allocator = "0.10.5"
|
||||
log = "0.4.17"
|
||||
redox_syscall = "0.5"
|
||||
spin = "0.9.5"
|
||||
|
||||
[dependencies.redoxfs]
|
||||
version = "0.8"
|
||||
default-features = false
|
||||
features = ["log"]
|
||||
|
||||
[target.'cfg(target_os = "uefi")'.dependencies]
|
||||
redox_uefi = { git = "https://gitlab.redox-os.org/redox-os/uefi.git" }
|
||||
redox_uefi_std = { git = "https://gitlab.redox-os.org/redox-os/uefi.git" }
|
||||
|
||||
#TODO: riscv cannot use target_os = "uefi" at this time
|
||||
[target.'cfg(target_arch = "riscv64")'.dependencies]
|
||||
redox_uefi = { git = "https://gitlab.redox-os.org/redox-os/uefi.git" }
|
||||
redox_uefi_std = { git = "https://gitlab.redox-os.org/redox-os/uefi.git" }
|
||||
|
||||
[target."aarch64-unknown-uefi".dependencies]
|
||||
dmidecode = "0.8.0"
|
||||
|
||||
[target."x86_64-unknown-uefi".dependencies]
|
||||
x86 = "0.52.0"
|
||||
|
||||
[target.'cfg(any(target_arch = "aarch64", target_arch = "riscv64"))'.dependencies]
|
||||
byteorder = { version = "1", default-features = false }
|
||||
fdt = { git = "https://github.com/repnop/fdt.git", rev = "2fb1409edd1877c714a0aa36b6a7c5351004be54" }
|
||||
|
||||
[features]
|
||||
default = []
|
||||
live = []
|
||||
serial_debug = []
|
||||
|
||||
@@ -0,0 +1,21 @@
|
||||
MIT License
|
||||
|
||||
Copyright (c) 2017-2022 Redox OS
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
@@ -0,0 +1,24 @@
|
||||
TARGET?=x86_64-unknown-uefi
|
||||
SOURCE:=$(dir $(realpath $(lastword $(MAKEFILE_LIST))))
|
||||
BUILD:=$(CURDIR)
|
||||
export RUST_TARGET_PATH?=$(SOURCE)/targets
|
||||
|
||||
|
||||
include $(SOURCE)/mk/$(TARGET).mk
|
||||
|
||||
clean:
|
||||
rm -rf build target
|
||||
|
||||
$(BUILD)/filesystem:
|
||||
mkdir -p $(BUILD)
|
||||
rm -f $@.partial
|
||||
mkdir $@.partial
|
||||
fallocate -l 1MiB $@.partial/kernel
|
||||
mv $@.partial $@
|
||||
|
||||
$(BUILD)/filesystem.bin: $(BUILD)/filesystem
|
||||
mkdir -p $(BUILD)
|
||||
rm -f $@.partial
|
||||
fallocate -l 254MiB $@.partial
|
||||
redoxfs-ar $@.partial $<
|
||||
mv $@.partial $@
|
||||
@@ -0,0 +1,62 @@
|
||||
# Bootloader
|
||||
|
||||
Redox OS Bootloader
|
||||
|
||||
## Requirements
|
||||
|
||||
These software needs to be available on the PATH at build time:
|
||||
|
||||
+ [mtools](https://www.gnu.org/software/mtools/)
|
||||
+ [nasm](https://nasm.us/)
|
||||
+ [redoxfs-ar](https://gitlab.redox-os.org/redox-os/redoxfs)
|
||||
|
||||
## Building
|
||||
|
||||
```sh
|
||||
make TARGET=<triplet> BUILD=build all
|
||||
```
|
||||
|
||||
The `<triplet>` is one of:
|
||||
|
||||
| ARCH | Boot Mode | Triplets |
|
||||
|---|---|---|
|
||||
| `i686` | BIOS | `x86-unknown-none` |
|
||||
| `x86_64` | BIOS | `x86-unknown-none` |
|
||||
| `x86_64` | UEFI | `x86_64-unknown-uefi` |
|
||||
| `aarch64` | UEFI | `aarch64-unknown-uefi` |
|
||||
| `riscv64gc` | UEFI | `riscv64gc-unknown-uefi` |
|
||||
|
||||
See [mk directory](./mk) for more information of how the build is working.
|
||||
|
||||
## Entry points
|
||||
|
||||
Please read [Boot Process](https://doc.redox-os.org/book/boot-process.html) in the Redox OS Book for an introductory guide.
|
||||
|
||||
In this source code, some interesting files for entry points are:
|
||||
|
||||
+ BIOS boot stages: [asm/x86-unknown-none/bootloader.asm](./asm/x86-unknown-none/bootloader.asm)
|
||||
+ BIOS boot entry: `fn start` at [src/os/bios/mod.rs](./src/os/bios/mod.rs)
|
||||
+ UEFI boot entry: `fn main` at [src/os/uefi/mod.rs](src/os/uefi/mod.rs)
|
||||
+ Common boot process: `fn main` at [src/main.rs](src/main.rs)
|
||||
+ UEFI kernel entry: `fn kernel_entry` in each arch:
|
||||
- `x86_64`: [src/os/uefi/arch/x86_64.rs](src/os/uefi/arch/x86_64.rs)
|
||||
- `aarch64`: [src/os/uefi/arch/aarch64.rs](src/os/uefi/arch/aarch64.rs)
|
||||
- `riscv64gc`: [src/os/uefi/arch/riscv64/mod.rs](src/os/uefi/arch/riscv64/mod.rs)
|
||||
|
||||
## Debugging
|
||||
|
||||
### QEMU
|
||||
|
||||
```sh
|
||||
make TARGET=<triplet> BUILD=build qemu
|
||||
```
|
||||
|
||||
## How To Contribute
|
||||
|
||||
To learn how to contribute to this system component you need to read the following document:
|
||||
|
||||
- [CONTRIBUTING.md](https://gitlab.redox-os.org/redox-os/redox/-/blob/master/CONTRIBUTING.md)
|
||||
|
||||
## Development
|
||||
|
||||
To learn how to do development with this system component inside the Redox build system you need to read the [Build System](https://doc.redox-os.org/book/build-system-reference.html) and [Coding and Building](https://doc.redox-os.org/book/coding-and-building.html) pages.
|
||||
@@ -0,0 +1,17 @@
|
||||
interrupt_vector_table:
|
||||
b . @ Reset
|
||||
b .
|
||||
b . @ SWI instruction
|
||||
b .
|
||||
b .
|
||||
b .
|
||||
b .
|
||||
b .
|
||||
|
||||
.comm stack, 0x10000 @ Reserve 64k stack in the BSS
|
||||
_start:
|
||||
.globl _start
|
||||
ldr sp, =stack+0x10000 @ Set up the stack
|
||||
bl kstart @ Jump to the main function
|
||||
1:
|
||||
b 1b @ Halt
|
||||
@@ -0,0 +1,31 @@
|
||||
sectalign off
|
||||
|
||||
; stage 1 is sector 0, loaded at 0x7C00
|
||||
%include "stage1.asm"
|
||||
|
||||
; GPT area from sector 1 to 33, loaded at 0x7E00
|
||||
times (33*512) db 0
|
||||
|
||||
; stage 2, loaded at 0xC000
|
||||
stage2:
|
||||
%include "stage2.asm"
|
||||
align 512, db 0
|
||||
stage2.end:
|
||||
|
||||
; the maximum size of stage2 is 4 KiB
|
||||
times (4*1024)-($-stage2) db 0
|
||||
|
||||
; ISO compatibility, uses up space until 0x12400
|
||||
%include "iso.asm"
|
||||
|
||||
times 3072 db 0 ; Pad to 0x13000
|
||||
|
||||
; stage3, loaded at 0x13000
|
||||
stage3:
|
||||
%defstr STAGE3_STR %[STAGE3]
|
||||
incbin STAGE3_STR
|
||||
align 512, db 0
|
||||
.end:
|
||||
|
||||
; the maximum size of the boot loader portion is 384 KiB
|
||||
times (384*1024)-($-$$) db 0
|
||||
@@ -0,0 +1,176 @@
|
||||
SECTION .text
|
||||
USE16
|
||||
|
||||
cpuid_required_features:
|
||||
.edx equ cpuid_edx.fpu | cpuid_edx.pse | cpuid_edx.pge | cpuid_edx.fxsr
|
||||
.ecx equ 0
|
||||
|
||||
cpuid_check:
|
||||
; If bit 21 of EFLAGS can be changed, then CPUID is supported
|
||||
pushfd ;Save EFLAGS
|
||||
pushfd ;Store EFLAGS
|
||||
xor dword [esp],0x00200000 ;Invert the ID bit in stored EFLAGS
|
||||
popfd ;Load stored EFLAGS (with ID bit inverted)
|
||||
pushfd ;Store EFLAGS again (ID bit may or may not be inverted)
|
||||
pop eax ;eax = modified EFLAGS (ID bit may or may not be inverted)
|
||||
xor eax,[esp] ;eax = whichever bits were changed
|
||||
popfd ;Restore original EFLAGS
|
||||
test eax,0x00200000 ;eax = zero if ID bit can't be changed, else non-zero
|
||||
jz .no_cpuid
|
||||
|
||||
mov eax, 1
|
||||
cpuid
|
||||
|
||||
and edx, cpuid_required_features.edx
|
||||
cmp edx, cpuid_required_features.edx
|
||||
jne .error
|
||||
|
||||
and ecx, cpuid_required_features.ecx
|
||||
cmp ecx, cpuid_required_features.ecx
|
||||
jne .error
|
||||
|
||||
ret
|
||||
|
||||
.no_cpuid:
|
||||
mov si, .msg_cpuid
|
||||
call print
|
||||
|
||||
mov si, .msg_line
|
||||
call print
|
||||
|
||||
jmp .halt
|
||||
|
||||
.error:
|
||||
push ecx
|
||||
push edx
|
||||
|
||||
mov si, .msg_features
|
||||
call print
|
||||
|
||||
mov si, .msg_line
|
||||
call print
|
||||
|
||||
mov si, .msg_edx
|
||||
call print
|
||||
|
||||
pop ebx
|
||||
push ebx
|
||||
shr ebx, 16
|
||||
call print_hex
|
||||
|
||||
pop ebx
|
||||
call print_hex
|
||||
|
||||
mov si, .msg_must_contain
|
||||
call print
|
||||
|
||||
mov ebx, cpuid_required_features.edx
|
||||
shr ebx, 16
|
||||
call print_hex
|
||||
|
||||
mov ebx, cpuid_required_features.edx
|
||||
call print_hex
|
||||
|
||||
mov si, .msg_line
|
||||
call print
|
||||
|
||||
mov si, .msg_ecx
|
||||
call print
|
||||
|
||||
pop ebx
|
||||
push ebx
|
||||
shr ebx, 16
|
||||
call print_hex
|
||||
|
||||
pop ebx
|
||||
call print_hex
|
||||
|
||||
mov si, .msg_must_contain
|
||||
call print
|
||||
|
||||
mov ebx, cpuid_required_features.ecx
|
||||
shr ebx, 16
|
||||
call print_hex
|
||||
|
||||
mov ebx, cpuid_required_features.ecx
|
||||
call print_hex
|
||||
|
||||
mov si, .msg_line
|
||||
call print
|
||||
|
||||
.halt:
|
||||
cli
|
||||
hlt
|
||||
jmp .halt
|
||||
|
||||
.msg_cpuid: db "CPUID not supported",0
|
||||
.msg_features: db "Required CPU features are not present",0
|
||||
.msg_line: db 13,10,0
|
||||
.msg_edx: db "EDX ",0
|
||||
.msg_ecx: db "ECX ",0
|
||||
.msg_must_contain: db " must contain ",0
|
||||
|
||||
cpuid_edx:
|
||||
.fpu equ 1 << 0
|
||||
.vme equ 1 << 1
|
||||
.de equ 1 << 2
|
||||
.pse equ 1 << 3
|
||||
.tsc equ 1 << 4
|
||||
.msr equ 1 << 5
|
||||
.pae equ 1 << 6
|
||||
.mce equ 1 << 7
|
||||
.cx8 equ 1 << 8
|
||||
.apic equ 1 << 9
|
||||
.sep equ 1 << 11
|
||||
.mtrr equ 1 << 12
|
||||
.pge equ 1 << 13
|
||||
.mca equ 1 << 14
|
||||
.cmov equ 1 << 15
|
||||
.pat equ 1 << 16
|
||||
.pse_36 equ 1 << 17
|
||||
.psn equ 1 << 18
|
||||
.clfsh equ 1 << 19
|
||||
.ds equ 1 << 21
|
||||
.acpi equ 1 << 22
|
||||
.mmx equ 1 << 23
|
||||
.fxsr equ 1 << 24
|
||||
.sse equ 1 << 25
|
||||
.sse2 equ 1 << 26
|
||||
.ss equ 1 << 27
|
||||
.htt equ 1 << 28
|
||||
.tm equ 1 << 29
|
||||
.ia64 equ 1 << 30
|
||||
.pbe equ 1 << 31
|
||||
|
||||
cpuid_ecx:
|
||||
.sse3 equ 1 << 0
|
||||
.pclmulqdq equ 1 << 1
|
||||
.dtes64 equ 1 << 2
|
||||
.monitor equ 1 << 3
|
||||
.ds_cpl equ 1 << 4
|
||||
.vmx equ 1 << 5
|
||||
.smx equ 1 << 6
|
||||
.est equ 1 << 7
|
||||
.tm2 equ 1 << 8
|
||||
.ssse3 equ 1 << 9
|
||||
.cnxt_id equ 1 << 10
|
||||
.sdbg equ 1 << 11
|
||||
.fma equ 1 << 12
|
||||
.cmpxchg16b equ 1 << 13
|
||||
.xtpr equ 1 << 14
|
||||
.pdcm equ 1 << 15
|
||||
.pcid equ 1 << 17
|
||||
.dca equ 1 << 18
|
||||
.sse4_1 equ 1 << 19
|
||||
.sse4_2 equ 1 << 20
|
||||
.x2apic equ 1 << 21
|
||||
.movbe equ 1 << 22
|
||||
.popcnt equ 1 << 23
|
||||
.tsc_deadline equ 1 << 24
|
||||
.aes equ 1 << 25
|
||||
.xsave equ 1 << 26
|
||||
.osxsave equ 1 << 27
|
||||
.avx equ 1 << 28
|
||||
.f16c equ 1 << 29
|
||||
.rdrand equ 1 << 30
|
||||
.hypervisor equ 1 << 31
|
||||
@@ -0,0 +1,128 @@
|
||||
SECTION .text ; cannot use .data
|
||||
|
||||
struc GDTEntry
|
||||
.limitl resw 1
|
||||
.basel resw 1
|
||||
.basem resb 1
|
||||
.attribute resb 1
|
||||
.flags__limith resb 1
|
||||
.baseh resb 1
|
||||
endstruc
|
||||
|
||||
gdt_attr:
|
||||
.present equ 1 << 7
|
||||
.ring1 equ 1 << 5
|
||||
.ring2 equ 1 << 6
|
||||
.ring3 equ 1 << 5 | 1 << 6
|
||||
.user equ 1 << 4
|
||||
;user
|
||||
.code equ 1 << 3
|
||||
; code
|
||||
.conforming equ 1 << 2
|
||||
.readable equ 1 << 1
|
||||
; data
|
||||
.expand_down equ 1 << 2
|
||||
.writable equ 1 << 1
|
||||
.accessed equ 1 << 0
|
||||
;system
|
||||
; legacy
|
||||
.tssAvailabe16 equ 0x1
|
||||
.ldt equ 0x2
|
||||
.tssBusy16 equ 0x3
|
||||
.call16 equ 0x4
|
||||
.task equ 0x5
|
||||
.interrupt16 equ 0x6
|
||||
.trap16 equ 0x7
|
||||
.tssAvailabe32 equ 0x9
|
||||
.tssBusy32 equ 0xB
|
||||
.call32 equ 0xC
|
||||
.interrupt32 equ 0xE
|
||||
.trap32 equ 0xF
|
||||
; long mode
|
||||
.ldt32 equ 0x2
|
||||
.tssAvailabe64 equ 0x9
|
||||
.tssBusy64 equ 0xB
|
||||
.call64 equ 0xC
|
||||
.interrupt64 equ 0xE
|
||||
.trap64 equ 0xF
|
||||
|
||||
gdt_flag:
|
||||
.granularity equ 1 << 7
|
||||
.available equ 1 << 4
|
||||
;user
|
||||
.default_operand_size equ 1 << 6
|
||||
; code
|
||||
.long_mode equ 1 << 5
|
||||
; data
|
||||
.reserved equ 1 << 5
|
||||
|
||||
gdtr:
|
||||
dw gdt.end + 1 ; size
|
||||
dq gdt ; offset
|
||||
|
||||
gdt:
|
||||
.null equ $ - gdt
|
||||
dq 0
|
||||
|
||||
.lm64_code equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.code
|
||||
at GDTEntry.flags__limith, db gdt_flag.long_mode
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.lm64_data equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
; AMD System Programming Manual states that the writeable bit is ignored in long mode, but ss can not be set to this descriptor without it
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.writable
|
||||
at GDTEntry.flags__limith, db 0
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.pm32_code equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0xFFFF
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.code | gdt_attr.readable
|
||||
at GDTEntry.flags__limith, db 0xF | gdt_flag.granularity | gdt_flag.default_operand_size
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.pm32_data equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0xFFFF
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.writable
|
||||
at GDTEntry.flags__limith, db 0xF | gdt_flag.granularity | gdt_flag.default_operand_size
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.pm16_code equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0xFFFF
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.code | gdt_attr.readable
|
||||
at GDTEntry.flags__limith, db 0xF
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.pm16_data equ $ - gdt
|
||||
istruc GDTEntry
|
||||
at GDTEntry.limitl, dw 0xFFFF
|
||||
at GDTEntry.basel, dw 0
|
||||
at GDTEntry.basem, db 0
|
||||
at GDTEntry.attribute, db gdt_attr.present | gdt_attr.user | gdt_attr.writable
|
||||
at GDTEntry.flags__limith, db 0xF
|
||||
at GDTEntry.baseh, db 0
|
||||
iend
|
||||
|
||||
.end equ $ - gdt
|
||||
@@ -0,0 +1,161 @@
|
||||
; Simple ISO emulation with el torito
|
||||
|
||||
; Fill until CD sector 0x10
|
||||
times (0x10*2048)-($-$$) db 0
|
||||
|
||||
; Volume record
|
||||
;TODO: fill in more fields
|
||||
iso_volume_record:
|
||||
db 1 ; Type volume record
|
||||
db "CD001" ; Identifier
|
||||
db 1 ; Version
|
||||
db 0 ; Unused
|
||||
times 32 db ' ' ; System identifier
|
||||
.volume_id: ; Volume identifier
|
||||
db 'Redox OS'
|
||||
times 32-($-.volume_id) db ' '
|
||||
times 8 db 0 ; Unused
|
||||
db 0x15, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15 ; Volume space size (0x15)
|
||||
times 32 db 0 ; Unused
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume set size
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume sequence number
|
||||
db 0x00, 0x08, 0x08, 0x00 ; Logical block size in little and big endian
|
||||
|
||||
times 156-($-iso_volume_record) db 0
|
||||
|
||||
; Root directory entry
|
||||
.root_directory:
|
||||
db 0x22 ; Length of entry
|
||||
db 0x00 ; Length of extended attributes
|
||||
db 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14 ; Location of extent (0x14)
|
||||
db 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00 ; Size of extent
|
||||
db 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ; Recording time
|
||||
db 0x02 ; File flags
|
||||
db 0x00 ; Interleaved file unit size
|
||||
db 0x00 ; Interleaved gap size
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume sequence number
|
||||
db 0x01 ; Length of file identifier
|
||||
db 0x00 ; File identifier
|
||||
|
||||
times 128 db ' ' ; Volume set identifier
|
||||
times 128 db ' ' ; Publisher identifier
|
||||
times 128 db ' ' ; Data preparer identifier
|
||||
times 128 db ' ' ; Application identifier
|
||||
times 37 db ' ' ; Copyright file ID
|
||||
times 37 db ' ' ; Abstract file ID
|
||||
times 37 db ' ' ; Bibliographic file ID
|
||||
|
||||
times 881-($-iso_volume_record) db 0
|
||||
|
||||
db 1 ; File structure version
|
||||
|
||||
; Fill until CD sector 0x11
|
||||
times (0x11*2048)-($-$$) db 0
|
||||
|
||||
; Boot record
|
||||
iso_boot_record:
|
||||
db 0 ; Type boot record
|
||||
db "CD001" ; Identifier
|
||||
db 1 ; Version
|
||||
db "EL TORITO SPECIFICATION" ; Boot system identifier
|
||||
times 0x47-($ - iso_boot_record) db 0 ; Padding
|
||||
dd 0x13 ; Sector of boot catalog
|
||||
|
||||
; Fill until CD sector 0x12
|
||||
times (0x12*2048)-($-$$) db 0
|
||||
|
||||
; Terminator
|
||||
iso_terminator:
|
||||
db 0xFF ; Type terminator
|
||||
db "CD001" ; Identifier
|
||||
db 1 ; Version
|
||||
|
||||
; Fill until CD sector 0x13
|
||||
times (0x13*2048)-($-$$) db 0
|
||||
|
||||
; Boot catalog
|
||||
iso_boot_catalog:
|
||||
|
||||
; Validation entry
|
||||
.validation:
|
||||
db 1 ; Header ID
|
||||
db 0 ; Platform ID (x86)
|
||||
dw 0 ; Reserved
|
||||
times 24 db 0 ; ID string
|
||||
dw 0x55aa ; Checksum
|
||||
dw 0xaa55 ; Key
|
||||
|
||||
; Default entry
|
||||
.default:
|
||||
db 0x88 ; Bootable
|
||||
db 4 ; Hard drive emulation
|
||||
dw 0 ; Load segment (0 is platform default)
|
||||
db 0xEE ; Partition type (0xEE is protective MBR)
|
||||
db 0 ; Unused
|
||||
dw 1 ; Sector count
|
||||
dd 0 ; Start address for virtual disk
|
||||
times 20 db 0 ; Padding
|
||||
|
||||
; EFI section header entry
|
||||
.efi_section_header:
|
||||
db 0x91 ; Final header
|
||||
db 0xEF ; Platform ID (EFI)
|
||||
dw 1 ; Number of section header entries
|
||||
times 28 db 0 ; ID string
|
||||
|
||||
; EFI section entry
|
||||
.efi_section_entry:
|
||||
db 0x88 ; Bootable
|
||||
db 0 ; No emulation
|
||||
dw 0 ; Load segment (0 is platform default)
|
||||
db 0 ; Partition type (not used)
|
||||
db 0 ; Unused
|
||||
dw 512 ; Sector count (1 MiB = 512 CD sectors)
|
||||
dd 512 ; Start address for virtual disk (1 MiB = 512 CD sectors)
|
||||
times 20 db 0 ; Padding
|
||||
|
||||
; Fill until CD sector 0x14
|
||||
times (0x14*2048)-($-$$) db 0
|
||||
|
||||
iso_root_directory:
|
||||
.self:
|
||||
db 0x22 ; Length of entry
|
||||
db 0x00 ; Length of extended attributes
|
||||
db 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14 ; Location of extent (0x14)
|
||||
db 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00 ; Size of extent
|
||||
db 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ; Recording time
|
||||
db 0x02 ; File flags
|
||||
db 0x00 ; Interleaved file unit size
|
||||
db 0x00 ; Interleaved gap size
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume sequence number
|
||||
db 0x01 ; Length of file identifier
|
||||
db 0x00 ; File identifier
|
||||
|
||||
.parent:
|
||||
db 0x22 ; Length of entry
|
||||
db 0x00 ; Length of extended attributes
|
||||
db 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14 ; Location of extent (0x14)
|
||||
db 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00 ; Size of extent
|
||||
db 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ; Recording time
|
||||
db 0x02 ; File flags
|
||||
db 0x00 ; Interleaved file unit size
|
||||
db 0x00 ; Interleaved gap size
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume sequence number
|
||||
db 0x01 ; Length of file identifier
|
||||
db 0x01 ; File identifier
|
||||
|
||||
.boot_cat:
|
||||
db 0x2C ; Length of entry
|
||||
db 0x00 ; Length of extended attributes
|
||||
db 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13 ; Location of extent (0x13)
|
||||
db 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00 ; Size of extent
|
||||
db 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ; Recording time
|
||||
db 0x00 ; File flags
|
||||
db 0x00 ; Interleaved file unit size
|
||||
db 0x00 ; Interleaved gap size
|
||||
db 0x01, 0x00, 0x00, 0x01 ; Volume sequence number
|
||||
db 0x0A ; Length of file identifier
|
||||
db "BOOT.CAT;1",0 ; File identifier
|
||||
|
||||
; Fill until CD sector 0x15
|
||||
times (0x15*2048)-($-$$) db 0
|
||||
@@ -0,0 +1,56 @@
|
||||
SECTION .text
|
||||
USE32
|
||||
|
||||
long_mode:
|
||||
.func: dq 0
|
||||
.page_table: dd 0
|
||||
|
||||
.entry:
|
||||
; disable interrupts
|
||||
cli
|
||||
|
||||
; disable paging
|
||||
mov eax, cr0
|
||||
and eax, 0x7FFFFFFF
|
||||
mov cr0, eax
|
||||
|
||||
; enable FXSAVE/FXRSTOR, Page Global, Page Address Extension, and Page Size Extension
|
||||
mov eax, cr4
|
||||
or eax, 1 << 9 | 1 << 7 | 1 << 5 | 1 << 4
|
||||
mov cr4, eax
|
||||
|
||||
; load long mode GDT
|
||||
lgdt [gdtr]
|
||||
|
||||
; enable long mode
|
||||
mov ecx, 0xC0000080 ; Read from the EFER MSR.
|
||||
rdmsr
|
||||
or eax, 1 << 11 | 1 << 8 ; Set the Long-Mode-Enable and NXE bit.
|
||||
wrmsr
|
||||
|
||||
; set page table
|
||||
mov eax, [.page_table]
|
||||
mov cr3, eax
|
||||
|
||||
; enabling paging and protection simultaneously
|
||||
mov eax, cr0
|
||||
or eax, 1 << 31 | 1 << 16 | 1 ;Bit 31: Paging, Bit 16: write protect kernel, Bit 0: Protected Mode
|
||||
mov cr0, eax
|
||||
|
||||
; far jump to enable Long Mode and load CS with 64 bit segment
|
||||
jmp gdt.lm64_code:.inner
|
||||
|
||||
USE64
|
||||
|
||||
.inner:
|
||||
; load all the other segments with 64 bit data segments
|
||||
mov rax, gdt.lm64_data
|
||||
mov ds, rax
|
||||
mov es, rax
|
||||
mov fs, rax
|
||||
mov gs, rax
|
||||
mov ss, rax
|
||||
|
||||
; jump to specified function
|
||||
mov rax, [.func]
|
||||
jmp rax
|
||||
@@ -0,0 +1,67 @@
|
||||
SECTION .text
|
||||
USE16
|
||||
|
||||
; provide function for printing in x86 real mode
|
||||
|
||||
; print a string and a newline
|
||||
; CLOBBER
|
||||
; ax
|
||||
print_line:
|
||||
mov al, 13
|
||||
call print_char
|
||||
mov al, 10
|
||||
jmp print_char
|
||||
|
||||
; print a string
|
||||
; IN
|
||||
; si: points at zero-terminated String
|
||||
; CLOBBER
|
||||
; si, ax
|
||||
print:
|
||||
pushf
|
||||
cld
|
||||
.loop:
|
||||
lodsb
|
||||
test al, al
|
||||
jz .done
|
||||
call print_char
|
||||
jmp .loop
|
||||
.done:
|
||||
popf
|
||||
ret
|
||||
|
||||
; print a character
|
||||
; IN
|
||||
; al: character to print
|
||||
print_char:
|
||||
pusha
|
||||
mov bx, 7
|
||||
mov ah, 0x0e
|
||||
int 0x10
|
||||
popa
|
||||
ret
|
||||
|
||||
; print a number in hex
|
||||
; IN
|
||||
; bx: the number
|
||||
; CLOBBER
|
||||
; al, cx
|
||||
print_hex:
|
||||
mov cx, 4
|
||||
.lp:
|
||||
mov al, bh
|
||||
shr al, 4
|
||||
|
||||
cmp al, 0xA
|
||||
jb .below_0xA
|
||||
|
||||
add al, 'A' - 0xA - '0'
|
||||
.below_0xA:
|
||||
add al, '0'
|
||||
|
||||
call print_char
|
||||
|
||||
shl bx, 4
|
||||
loop .lp
|
||||
|
||||
ret
|
||||
@@ -0,0 +1,36 @@
|
||||
SECTION .text
|
||||
USE16
|
||||
|
||||
protected_mode:
|
||||
|
||||
.func: dd 0
|
||||
|
||||
.entry:
|
||||
; disable interrupts
|
||||
cli
|
||||
|
||||
; load protected mode GDT
|
||||
lgdt [gdtr]
|
||||
|
||||
; set protected mode bit of cr0
|
||||
mov eax, cr0
|
||||
or eax, 1
|
||||
mov cr0, eax
|
||||
|
||||
; far jump to load CS with 32 bit segment
|
||||
jmp gdt.pm32_code:.inner
|
||||
|
||||
USE32
|
||||
|
||||
.inner:
|
||||
; load all the other segments with 32 bit data segments
|
||||
mov eax, gdt.pm32_data
|
||||
mov ds, eax
|
||||
mov es, eax
|
||||
mov fs, eax
|
||||
mov gs, eax
|
||||
mov ss, eax
|
||||
|
||||
; jump to specified function
|
||||
mov eax, [.func]
|
||||
jmp eax
|
||||
@@ -0,0 +1,222 @@
|
||||
ORG 0x7C00
|
||||
SECTION .text
|
||||
USE16
|
||||
|
||||
stage1: ; dl comes with disk
|
||||
; initialize segment registers
|
||||
xor ax, ax
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov ss, ax
|
||||
|
||||
; initialize stack
|
||||
mov sp, 0x7C00
|
||||
|
||||
; initialize CS
|
||||
push ax
|
||||
push word .set_cs
|
||||
retf
|
||||
|
||||
.set_cs:
|
||||
|
||||
; save disk number
|
||||
mov [disk], dl
|
||||
|
||||
mov si, stage_msg
|
||||
call print
|
||||
mov al, '1'
|
||||
call print_char
|
||||
call print_line
|
||||
|
||||
; read CHS gemotry
|
||||
; CL (bits 0-5) = maximum sector number
|
||||
; CL (bits 6-7) = high bits of max cylinder number
|
||||
; CH = low bits of maximum cylinder number
|
||||
; DH = maximum head number
|
||||
mov ah, 0x08
|
||||
mov dl, [disk]
|
||||
xor di, di
|
||||
int 0x13
|
||||
jc error ; carry flag set on error
|
||||
mov bl, ch
|
||||
mov bh, cl
|
||||
shr bh, 6
|
||||
mov [chs.c], bx
|
||||
shr dx, 8
|
||||
inc dx ; returns heads - 1
|
||||
mov [chs.h], dx
|
||||
and cl, 0x3f
|
||||
mov [chs.s], cl
|
||||
|
||||
mov eax, (stage2 - stage1) / 512
|
||||
mov bx, stage2
|
||||
mov cx, (stage3.end - stage2) / 512
|
||||
mov dx, 0
|
||||
call load
|
||||
|
||||
mov si, stage_msg
|
||||
call print
|
||||
mov al, '2'
|
||||
call print_char
|
||||
call print_line
|
||||
|
||||
jmp stage2.entry
|
||||
|
||||
; load some sectors from disk to a buffer in memory
|
||||
; buffer has to be below 1MiB
|
||||
; IN
|
||||
; ax: start sector
|
||||
; bx: offset of buffer
|
||||
; cx: number of sectors (512 Bytes each)
|
||||
; dx: segment of buffer
|
||||
; CLOBBER
|
||||
; ax, bx, cx, dx, si
|
||||
; TODO rewrite to (eventually) move larger parts at once
|
||||
; if that is done increase buffer_size_sectors in startup-common to that (max 0x80000 - startup_end)
|
||||
load:
|
||||
cmp cx, 127
|
||||
jbe .good_size
|
||||
|
||||
pusha
|
||||
mov cx, 127
|
||||
call load
|
||||
popa
|
||||
add eax, 127
|
||||
add dx, 127 * 512 / 16
|
||||
sub cx, 127
|
||||
|
||||
jmp load
|
||||
.good_size:
|
||||
mov [DAPACK.addr], eax
|
||||
mov [DAPACK.buf], bx
|
||||
mov [DAPACK.count], cx
|
||||
mov [DAPACK.seg], dx
|
||||
|
||||
call print_dapack
|
||||
|
||||
cmp byte [chs.s], 0
|
||||
jne .chs
|
||||
;INT 0x13 extended read does not work on CDROM!
|
||||
mov dl, [disk]
|
||||
mov si, DAPACK
|
||||
mov ah, 0x42
|
||||
int 0x13
|
||||
jc error ; carry flag set on error
|
||||
ret
|
||||
|
||||
.chs:
|
||||
; calculate CHS
|
||||
xor edx, edx
|
||||
mov eax, [DAPACK.addr]
|
||||
div dword [chs.s] ; divide by sectors
|
||||
mov ecx, edx ; move sector remainder to ecx
|
||||
xor edx, edx
|
||||
div dword [chs.h] ; divide by heads
|
||||
; eax has cylinders, edx has heads, ecx has sectors
|
||||
|
||||
; Sector cannot be greater than 63
|
||||
inc ecx ; Sector is base 1
|
||||
cmp ecx, 63
|
||||
ja error_chs
|
||||
|
||||
; Head cannot be greater than 255
|
||||
cmp edx, 255
|
||||
ja error_chs
|
||||
|
||||
; Cylinder cannot be greater than 1023
|
||||
cmp eax, 1023
|
||||
ja error_chs
|
||||
|
||||
; Move CHS values to parameters
|
||||
mov ch, al
|
||||
shl ah, 6
|
||||
and cl, 0x3f
|
||||
or cl, ah
|
||||
shl dx, 8
|
||||
|
||||
; read from disk using CHS
|
||||
mov al, [DAPACK.count]
|
||||
mov ah, 0x02 ; disk read (CHS)
|
||||
mov bx, [DAPACK.buf]
|
||||
mov dl, [disk]
|
||||
push es ; save ES
|
||||
mov es, [DAPACK.seg]
|
||||
int 0x13
|
||||
pop es ; restore EC
|
||||
jc error ; carry flag set on error
|
||||
ret
|
||||
|
||||
print_dapack:
|
||||
mov bx, [DAPACK.addr + 2]
|
||||
call print_hex
|
||||
|
||||
mov bx, [DAPACK.addr]
|
||||
call print_hex
|
||||
|
||||
mov al, '#'
|
||||
call print_char
|
||||
|
||||
mov bx, [DAPACK.count]
|
||||
call print_hex
|
||||
|
||||
mov al, ' '
|
||||
call print_char
|
||||
|
||||
mov bx, [DAPACK.seg]
|
||||
call print_hex
|
||||
|
||||
mov al, ':'
|
||||
call print_char
|
||||
|
||||
mov bx, [DAPACK.buf]
|
||||
call print_hex
|
||||
|
||||
call print_line
|
||||
|
||||
ret
|
||||
|
||||
error_chs:
|
||||
mov ah, 0
|
||||
|
||||
error:
|
||||
call print_line
|
||||
|
||||
mov bh, 0
|
||||
mov bl, ah
|
||||
call print_hex
|
||||
|
||||
mov al, ' '
|
||||
call print_char
|
||||
|
||||
mov si, error_msg
|
||||
call print
|
||||
call print_line
|
||||
.halt:
|
||||
cli
|
||||
hlt
|
||||
jmp .halt
|
||||
|
||||
%include "print.asm"
|
||||
|
||||
stage_msg: db "Stage ",0
|
||||
error_msg: db "ERROR",0
|
||||
|
||||
disk: db 0
|
||||
|
||||
chs:
|
||||
.c: dd 0
|
||||
.h: dd 0
|
||||
.s: dd 0
|
||||
|
||||
DAPACK:
|
||||
db 0x10
|
||||
db 0
|
||||
.count: dw 0 ; int 13 resets this to # of blocks actually read/written
|
||||
.buf: dw 0 ; memory buffer destination address (0:7c00)
|
||||
.seg: dw 0 ; in memory page zero
|
||||
.addr: dq 0 ; put the lba to read in this spot
|
||||
|
||||
times 446-($-$$) db 0
|
||||
partitions: times 4 * 16 db 0
|
||||
db 0x55
|
||||
db 0xaa
|
||||
@@ -0,0 +1,134 @@
|
||||
SECTION .text
|
||||
USE16
|
||||
|
||||
stage2.entry:
|
||||
; check for required features
|
||||
call cpuid_check
|
||||
|
||||
; enable A20-Line via IO-Port 92, might not work on all motherboards
|
||||
in al, 0x92
|
||||
or al, 2
|
||||
out 0x92, al
|
||||
|
||||
mov dword [protected_mode.func], stage3.entry
|
||||
jmp protected_mode.entry
|
||||
|
||||
%include "cpuid.asm"
|
||||
%include "gdt.asm"
|
||||
%include "long_mode.asm"
|
||||
%include "protected_mode.asm"
|
||||
%include "thunk.asm"
|
||||
|
||||
USE32
|
||||
|
||||
stage3.entry:
|
||||
; stage3 stack at 448 KiB (512KiB minus 64KiB disk buffer)
|
||||
mov esp, 0x70000
|
||||
|
||||
; push arguments
|
||||
mov eax, thunk.int16
|
||||
push eax
|
||||
mov eax, thunk.int15
|
||||
push eax
|
||||
mov eax, thunk.int13
|
||||
push eax
|
||||
mov eax, thunk.int10
|
||||
push eax
|
||||
xor eax, eax
|
||||
mov al, [disk]
|
||||
push eax
|
||||
mov eax, kernel.entry
|
||||
push eax
|
||||
mov eax, [stage3 + 0x18]
|
||||
call eax
|
||||
.halt:
|
||||
cli
|
||||
hlt
|
||||
jmp .halt
|
||||
|
||||
kernel:
|
||||
.stack: dq 0
|
||||
.func: dq 0
|
||||
.args: dq 0
|
||||
|
||||
.entry:
|
||||
; page_table: usize
|
||||
mov eax, [esp + 4]
|
||||
mov [long_mode.page_table], eax
|
||||
|
||||
; stack: u64
|
||||
mov eax, [esp + 8]
|
||||
mov [.stack], eax
|
||||
mov eax, [esp + 12]
|
||||
mov [.stack + 4], eax
|
||||
|
||||
; func: u64
|
||||
mov eax, [esp + 16]
|
||||
mov [.func], eax
|
||||
mov eax, [esp + 20]
|
||||
mov [.func + 4], eax
|
||||
|
||||
; args: *const KernelArgs
|
||||
mov eax, [esp + 24]
|
||||
mov [.args], eax
|
||||
|
||||
; long_mode: usize
|
||||
mov eax, [esp + 28]
|
||||
test eax, eax
|
||||
jz .inner32
|
||||
|
||||
mov eax, .inner64
|
||||
mov [long_mode.func], eax
|
||||
jmp long_mode.entry
|
||||
|
||||
.inner32:
|
||||
; disable paging
|
||||
mov eax, cr0
|
||||
and eax, 0x7FFFFFFF
|
||||
mov cr0, eax
|
||||
|
||||
;TODO: PAE (1 << 5)
|
||||
; enable FXSAVE/FXRSTOR, Page Global, and Page Size Extension
|
||||
mov eax, cr4
|
||||
or eax, 1 << 9 | 1 << 7 | 1 << 4
|
||||
mov cr4, eax
|
||||
|
||||
; set page table
|
||||
mov eax, [long_mode.page_table]
|
||||
mov cr3, eax
|
||||
|
||||
; enabling paging and protection simultaneously
|
||||
mov eax, cr0
|
||||
; Bit 31: Paging, Bit 16: write protect kernel, Bit 0: Protected Mode
|
||||
or eax, 1 << 31 | 1 << 16 | 1
|
||||
mov cr0, eax
|
||||
|
||||
; enable FPU
|
||||
;TODO: move to Rust
|
||||
mov eax, cr0
|
||||
and al, 11110011b ; Clear task switched (3) and emulation (2)
|
||||
or al, 00100010b ; Set numeric error (5) monitor co-processor (1)
|
||||
mov cr0, eax
|
||||
fninit
|
||||
|
||||
mov esp, [.stack]
|
||||
mov eax, [.args]
|
||||
push eax
|
||||
mov eax, [.func]
|
||||
call eax
|
||||
.halt32:
|
||||
cli
|
||||
hlt
|
||||
jmp .halt32
|
||||
|
||||
USE64
|
||||
|
||||
.inner64:
|
||||
mov rsp, [.stack]
|
||||
mov rax, [.func]
|
||||
mov rdi, [.args]
|
||||
call rax
|
||||
.halt64:
|
||||
cli
|
||||
hlt
|
||||
jmp .halt64
|
||||
@@ -0,0 +1,149 @@
|
||||
SECTION .text
|
||||
USE32
|
||||
|
||||
thunk:
|
||||
.int10:
|
||||
mov dword [.func], .int10_real
|
||||
jmp .enter
|
||||
|
||||
.int13:
|
||||
mov dword [.func], .int13_real
|
||||
jmp .enter
|
||||
|
||||
.int15:
|
||||
mov dword [.func], .int15_real
|
||||
jmp .enter
|
||||
|
||||
.int16:
|
||||
mov dword [.func], .int16_real
|
||||
jmp .enter
|
||||
|
||||
.func: dd 0
|
||||
.esp: dd 0
|
||||
.cr0: dd 0
|
||||
|
||||
.enter:
|
||||
; save flags
|
||||
pushfd
|
||||
|
||||
; save registers
|
||||
pushad
|
||||
|
||||
; save esp
|
||||
mov [.esp], esp
|
||||
|
||||
; load gdt
|
||||
lgdt [gdtr]
|
||||
|
||||
; far jump to protected mode 16-bit
|
||||
jmp gdt.pm16_code:.pm16
|
||||
|
||||
.exit:
|
||||
; set segment selectors to 32-bit protected mode
|
||||
mov eax, gdt.pm32_data
|
||||
mov ds, eax
|
||||
mov es, eax
|
||||
mov fs, eax
|
||||
mov gs, eax
|
||||
mov ss, eax
|
||||
|
||||
; restore esp
|
||||
mov esp, [.esp]
|
||||
|
||||
; restore registers
|
||||
popad
|
||||
|
||||
; restore flags
|
||||
popfd
|
||||
|
||||
; return
|
||||
ret
|
||||
|
||||
USE16
|
||||
|
||||
.int10_real:
|
||||
int 0x10
|
||||
ret
|
||||
|
||||
.int13_real:
|
||||
int 0x13
|
||||
ret
|
||||
|
||||
.int15_real:
|
||||
int 0x15
|
||||
ret
|
||||
|
||||
.int16_real:
|
||||
int 0x16
|
||||
ret
|
||||
|
||||
.pm16:
|
||||
; set segment selectors to protected mode 16-bit
|
||||
mov eax, gdt.pm16_data
|
||||
mov ds, eax
|
||||
mov es, eax
|
||||
mov fs, eax
|
||||
mov gs, eax
|
||||
mov ss, eax
|
||||
|
||||
; save cr0
|
||||
mov eax, cr0
|
||||
mov [.cr0], eax
|
||||
|
||||
; disable paging and protected mode
|
||||
and eax, 0x7FFFFFFE
|
||||
mov cr0, eax
|
||||
|
||||
; far jump to real mode
|
||||
jmp 0:.real
|
||||
|
||||
.real:
|
||||
; set segment selectors to real mode
|
||||
mov eax, 0
|
||||
mov ds, eax
|
||||
mov es, eax
|
||||
mov fs, eax
|
||||
mov gs, eax
|
||||
mov ss, eax
|
||||
|
||||
; set stack
|
||||
mov esp, 0x7C00 - 64
|
||||
|
||||
; load registers and ES
|
||||
pop es
|
||||
pop edi
|
||||
pop esi
|
||||
pop ebp
|
||||
pop ebx
|
||||
pop edx
|
||||
pop ecx
|
||||
pop eax
|
||||
|
||||
; enable interrupts
|
||||
sti
|
||||
|
||||
; call real mode function
|
||||
call [.func]
|
||||
|
||||
; disable interrupts
|
||||
cli
|
||||
|
||||
; save registers and ES
|
||||
push eax
|
||||
push ecx
|
||||
push edx
|
||||
push ebx
|
||||
push ebp
|
||||
push esi
|
||||
push edi
|
||||
push es
|
||||
|
||||
; load gdt (BIOS sometimes overwrites this)
|
||||
lgdt [gdtr]
|
||||
|
||||
; restore cr0, will enable protected mode
|
||||
mov eax, [.cr0]
|
||||
mov cr0, eax
|
||||
|
||||
; far jump to protected mode 32-bit
|
||||
jmp gdt.pm32_code:.exit
|
||||
@@ -0,0 +1,78 @@
|
||||
OUTPUT_FORMAT("elf64-littleriscv", "elf64-littleriscv", "elf64-littleriscv")
|
||||
OUTPUT_ARCH(riscv)
|
||||
ENTRY(coff_start)
|
||||
SECTIONS
|
||||
{
|
||||
PROVIDE(ImageBase = .);
|
||||
. = SEGMENT_START("text-segment", 0) + SIZEOF_HEADERS;
|
||||
.note.gnu.build-id : { *(.note.gnu.build-id) }
|
||||
.hash : { *(.hash) *(.gnu.hash) }
|
||||
|
||||
. = ALIGN(4096);
|
||||
.text :
|
||||
{
|
||||
PROVIDE(_text = .);
|
||||
*(.text.unlikely .text.*_unlikely .text.unlikely.*)
|
||||
*(.text.exit .text.exit.*)
|
||||
*(.text.startup .text.startup.*)
|
||||
*(.text.hot .text.hot.*)
|
||||
*(SORT(.text.sorted.*))
|
||||
*(.text .stub .text.* .gnu.linkonce.t.*)
|
||||
/* .gnu.warning sections are handled specially by elf.em. */
|
||||
*(.gnu.warning)
|
||||
}
|
||||
PROVIDE (__etext = .);
|
||||
PROVIDE (_etext = .);
|
||||
PROVIDE (etext = .);
|
||||
. = ALIGN(4096);
|
||||
|
||||
.rdata :
|
||||
{
|
||||
*(.rodata .rodata.* .gnu.linkonce.r.*)
|
||||
*(.rodata1)
|
||||
KEEP (*(.eh_frame))
|
||||
*(.eh_frame.*)
|
||||
*(.dynamic)
|
||||
}
|
||||
. = ALIGN(4096);
|
||||
.data :
|
||||
{
|
||||
*(.got) *(.igot)
|
||||
*(.got.plt) *(.igot.plt)
|
||||
*(.data .data.* .gnu.linkonce.d.*)
|
||||
*(.data1)
|
||||
*(.srodata.cst16) *(.srodata.cst8) *(.srodata.cst4) *(.srodata.cst2) *(.srodata .srodata.*)
|
||||
*(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
|
||||
*(.sdata .sdata.* .gnu.linkonce.s.*)
|
||||
PROVIDE (_edata = .); PROVIDE (edata = .);
|
||||
. = ALIGN(4096);
|
||||
PROVIDE (__bss_start = .);
|
||||
*(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
|
||||
*(.dynsbss)
|
||||
*(.sbss .sbss.* .gnu.linkonce.sb.*)
|
||||
*(.scommon)
|
||||
*(.dynbss)
|
||||
*(.bss .bss.* .gnu.linkonce.b.*)
|
||||
*(COMMON)
|
||||
. = ALIGN(4096);
|
||||
}
|
||||
.reloc :
|
||||
{
|
||||
KEEP(*(.reloc*))
|
||||
}
|
||||
.rela :
|
||||
{
|
||||
*(.rela.*)
|
||||
}
|
||||
.data.rel.ro :
|
||||
{
|
||||
*(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*)
|
||||
*(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*)
|
||||
}
|
||||
. = ALIGN(4096);
|
||||
|
||||
.dynsym : { *(.dynsym) }
|
||||
.dynstr : { *(.dynstr) }
|
||||
|
||||
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
ENTRY(start)
|
||||
OUTPUT_FORMAT(elf32-i386)
|
||||
|
||||
SECTIONS {
|
||||
/* The start address must match bootloader.asm */
|
||||
. = 0x13000;
|
||||
|
||||
. += SIZEOF_HEADERS;
|
||||
. = ALIGN(4096);
|
||||
|
||||
.text : {
|
||||
__text_start = .;
|
||||
*(.text*)
|
||||
. = ALIGN(4096);
|
||||
__text_end = .;
|
||||
}
|
||||
|
||||
.rodata : {
|
||||
__rodata_start = .;
|
||||
*(.rodata*)
|
||||
. = ALIGN(4096);
|
||||
__rodata_end = .;
|
||||
}
|
||||
|
||||
.data : {
|
||||
__data_start = .;
|
||||
*(.data*)
|
||||
. = ALIGN(4096);
|
||||
__data_end = .;
|
||||
__bss_start = .;
|
||||
*(.bss*)
|
||||
. = ALIGN(4096);
|
||||
__bss_end = .;
|
||||
}
|
||||
|
||||
.tdata : {
|
||||
__tdata_start = .;
|
||||
*(.tdata*)
|
||||
. = ALIGN(4096);
|
||||
__tdata_end = .;
|
||||
__tbss_start = .;
|
||||
*(.tbss*)
|
||||
. += 8;
|
||||
. = ALIGN(4096);
|
||||
__tbss_end = .;
|
||||
}
|
||||
|
||||
__end = .;
|
||||
|
||||
/DISCARD/ : {
|
||||
*(.comment*)
|
||||
*(.eh_frame*)
|
||||
*(.gcc_except_table*)
|
||||
*(.note*)
|
||||
*(.rel.eh_frame*)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,69 @@
|
||||
export PARTED?=parted
|
||||
export QEMU?=qemu-system-aarch64
|
||||
|
||||
all: $(BUILD)/bootloader.efi
|
||||
|
||||
$(BUILD)/bootloader.efi: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--bin bootloader \
|
||||
--release \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/bootloader-live.efi: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--bin bootloader \
|
||||
--release \
|
||||
--features live \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/esp.bin: $(BUILD)/bootloader.efi
|
||||
rm -f "$@.partial"
|
||||
fallocate -l 64MiB "$@.partial"
|
||||
mkfs.vfat -F 32 "$@.partial"
|
||||
mmd -i "$@.partial" efi
|
||||
mmd -i "$@.partial" efi/boot
|
||||
mcopy -i "$@.partial" "$<" ::efi/boot/bootaa64.efi
|
||||
mv "$@.partial" "$@"
|
||||
|
||||
$(BUILD)/harddrive.bin: $(BUILD)/esp.bin $(BUILD)/filesystem.bin
|
||||
rm -f "$@.partial"
|
||||
fallocate -l 320MiB "$@.partial"
|
||||
$(PARTED) -s -a minimal "$@.partial" mklabel gpt
|
||||
$(PARTED) -s -a minimal "$@.partial" mkpart ESP FAT32 1MiB 65MiB
|
||||
$(PARTED) -s -a minimal "$@.partial" mkpart REDOXFS 65MiB 100%
|
||||
$(PARTED) -s -a minimal "$@.partial" toggle 1 boot
|
||||
dd if="$(BUILD)/esp.bin" of="$@.partial" bs=1MiB seek=1 conv=notrunc
|
||||
dd if="$(BUILD)/filesystem.bin" of="$@.partial" bs=1MiB seek=65 conv=notrunc
|
||||
mv "$@.partial" "$@"
|
||||
|
||||
$(BUILD)/firmware.rom: /usr/share/AAVMF/AAVMF_CODE.fd
|
||||
cp "$<" "$@"
|
||||
|
||||
qemu: $(BUILD)/harddrive.bin $(BUILD)/firmware.rom
|
||||
$(QEMU) \
|
||||
-d cpu_reset \
|
||||
-no-reboot \
|
||||
-smp 4 -m 2048 \
|
||||
-chardev stdio,id=debug,signal=off,mux=on \
|
||||
-serial chardev:debug \
|
||||
-mon chardev=debug \
|
||||
-device virtio-gpu-pci \
|
||||
-machine virt \
|
||||
-net none \
|
||||
-cpu max \
|
||||
-bios "$(BUILD)/firmware.rom" \
|
||||
-drive file="$<",format=raw
|
||||
@@ -0,0 +1,108 @@
|
||||
LD=riscv64-unknown-redox-ld
|
||||
OBJCOPY=riscv64-unknown-redox-objcopy
|
||||
SCRIPT=$(SOURCE)/linkers/riscv64-unknown-uefi.ld
|
||||
PARTED?=parted
|
||||
QEMU?=qemu-system-riscv64
|
||||
|
||||
all: $(BUILD)/bootloader.efi
|
||||
|
||||
$(BUILD)/%.efi: $(BUILD)/%.efi.elf $(BUILD)/%.efi.sym
|
||||
$(OBJCOPY) -j .text -j .data -j .rdata -j .rela -j .reloc --target pei-riscv64-little \
|
||||
--file-alignment 512 --section-alignment 4096 --subsystem 10 "$<" "$@"
|
||||
|
||||
.PRECIOUS: $(BUILD)/%.efi.sym
|
||||
$(BUILD)/%.efi.sym: $(BUILD)/%.efi.elf
|
||||
$(OBJCOPY) --only-keep-debug "$<" "$@"
|
||||
|
||||
$(BUILD)/%.efi.elf: $(BUILD)/%.a $(SCRIPT)
|
||||
$(LD) --gc-sections -z max-page-size=0x1000 --warn-common --no-undefined -z nocombreloc -shared \
|
||||
--fatal-warnings -Bsymbolic --entry coff_start -T "$(SCRIPT)" -o "$@" "$<"
|
||||
|
||||
$(BUILD)/bootloader.a: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--lib \
|
||||
--release \
|
||||
-- \
|
||||
--emit link=$@
|
||||
|
||||
$(BUILD)/bootloader-live.a: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--lib \
|
||||
--release \
|
||||
--features live \
|
||||
-- \
|
||||
--emit link=$@
|
||||
|
||||
|
||||
$(BUILD)/esp.bin: $(BUILD)/bootloader.efi
|
||||
rm -f $@.partial
|
||||
fallocate -l 64MiB $@.partial
|
||||
mkfs.vfat -F 32 $@.partial
|
||||
mmd -i $@.partial EFI
|
||||
mmd -i $@.partial EFI/BOOT
|
||||
mcopy -i $@.partial $< ::EFI/BOOT/BOOTRISCV64.EFI
|
||||
mv $@.partial $@
|
||||
|
||||
$(BUILD)/harddrive.bin: $(BUILD)/esp.bin $(BUILD)/filesystem.bin
|
||||
rm -f $@.partial
|
||||
fallocate -l 320MiB $@.partial
|
||||
$(PARTED) -s -a minimal $@.partial mklabel gpt
|
||||
$(PARTED) -s -a minimal $@.partial mkpart ESP FAT32 1MiB 65MiB
|
||||
$(PARTED) -s -a minimal $@.partial mkpart REDOXFS 65MiB 100%
|
||||
$(PARTED) -s -a minimal $@.partial toggle 1 boot
|
||||
dd if=$(BUILD)/esp.bin of=$@.partial bs=1MiB seek=1 conv=notrunc
|
||||
dd if=$(BUILD)/filesystem.bin of=$@.partial bs=1MiB seek=65 conv=notrunc
|
||||
mv $@.partial $@
|
||||
|
||||
$(BUILD)/fw_vars.img: /usr/share/qemu-efi-riscv64/RISCV_VIRT_VARS.fd
|
||||
cp "$<" "$@"
|
||||
|
||||
$(BUILD)/firmware.rom: /usr/share/qemu-efi-riscv64/RISCV_VIRT_CODE.fd
|
||||
cp "$<" "$@"
|
||||
|
||||
qemu-acpi: $(BUILD)/harddrive.bin $(BUILD)/firmware.rom $(BUILD)/fw_vars.img
|
||||
$(QEMU) \
|
||||
-M virt \
|
||||
-d cpu_reset \
|
||||
-no-reboot \
|
||||
-smp 4 -m 2048 \
|
||||
-chardev stdio,id=debug,signal=off,mux=on \
|
||||
-serial chardev:debug \
|
||||
-mon chardev=debug \
|
||||
-device virtio-gpu-pci \
|
||||
-machine virt \
|
||||
-net none \
|
||||
-cpu max \
|
||||
-drive if=pflash,format=raw,unit=0,file=$(BUILD)/firmware.rom,readonly=on \
|
||||
-drive if=pflash,format=raw,unit=1,file=$(BUILD)/fw_vars.img \
|
||||
-drive file=$(BUILD)/harddrive.bin,format=raw,if=virtio
|
||||
|
||||
|
||||
qemu-dtb: $(BUILD)/harddrive.bin $(BUILD)/firmware.rom $(BUILD)/fw_vars.img
|
||||
$(QEMU) \
|
||||
-M virt,acpi=off \
|
||||
-d cpu_reset \
|
||||
-no-reboot \
|
||||
-smp 4 -m 2048 \
|
||||
-chardev stdio,id=debug,signal=off,mux=on \
|
||||
-serial chardev:debug \
|
||||
-mon chardev=debug \
|
||||
-device virtio-gpu-pci \
|
||||
-machine virt \
|
||||
-net none \
|
||||
-cpu max \
|
||||
-drive if=pflash,format=raw,unit=0,file=$(BUILD)/firmware.rom,readonly=on \
|
||||
-drive if=pflash,format=raw,unit=1,file=$(BUILD)/fw_vars.img \
|
||||
-drive file=$(BUILD)/harddrive.bin,format=raw,if=virtio -s
|
||||
@@ -0,0 +1,65 @@
|
||||
export LD?=ld
|
||||
export OBJCOPY?=objcopy
|
||||
export PARTED?=parted
|
||||
export QEMU?=qemu-system-x86_64
|
||||
|
||||
all: $(BUILD)/bootloader.bin
|
||||
|
||||
$(BUILD)/libbootloader.a: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target "$(TARGET)" \
|
||||
--lib \
|
||||
--release \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/libbootloader-live.a: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target "$(TARGET)" \
|
||||
--lib \
|
||||
--release \
|
||||
--features live \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/%.elf: $(BUILD)/lib%.a $(SOURCE)/linkers/$(TARGET).ld
|
||||
$(LD) -m elf_i386 --gc-sections -z max-page-size=0x1000 -T "$(SOURCE)/linkers/$(TARGET).ld" -o "$@" "$<"
|
||||
$(OBJCOPY) --only-keep-debug "$@" "$@.sym"
|
||||
$(OBJCOPY) --strip-debug "$@"
|
||||
|
||||
$(BUILD)/%.bin: $(BUILD)/%.elf $(shell find $(SOURCE)/asm/$(TARGET) -type f)
|
||||
nasm -f bin -o "$@" -l "$@.lst" -D STAGE3="$<" -i"$(SOURCE)/asm/$(TARGET)/" "$(SOURCE)/asm/$(TARGET)/bootloader.asm"
|
||||
|
||||
$(BUILD)/harddrive.bin: $(BUILD)/bootloader.bin $(BUILD)/filesystem.bin
|
||||
rm -f "$@.partial"
|
||||
fallocate -l 256MiB "$@.partial"
|
||||
$(PARTED) -s -a minimal "$@.partial" mklabel msdos
|
||||
$(PARTED) -s -a minimal "$@.partial" mkpart primary 2MiB 100%
|
||||
dd if="$<" of="$@.partial" bs=1 count=446 conv=notrunc
|
||||
dd if="$<" of="$@.partial" bs=512 skip=1 seek=1 conv=notrunc
|
||||
dd if="$(BUILD)/filesystem.bin" of="$@.partial" bs=1MiB seek=2 conv=notrunc
|
||||
mv "$@.partial" "$@"
|
||||
|
||||
qemu: $(BUILD)/harddrive.bin
|
||||
$(QEMU) \
|
||||
-d cpu_reset \
|
||||
-no-reboot \
|
||||
-smp 4 -m 2048 \
|
||||
-chardev stdio,id=debug,signal=off,mux=on \
|
||||
-serial chardev:debug \
|
||||
-mon chardev=debug \
|
||||
-machine q35 \
|
||||
-net none \
|
||||
-enable-kvm \
|
||||
-cpu host \
|
||||
-drive file="$<",format=raw
|
||||
@@ -0,0 +1,70 @@
|
||||
export PARTED?=parted
|
||||
export QEMU?=qemu-system-x86_64
|
||||
|
||||
all: $(BUILD)/bootloader.efi
|
||||
|
||||
$(BUILD)/bootloader.efi: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p "$(BUILD)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--bin bootloader \
|
||||
--release \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/bootloader-live.efi: $(SOURCE)/Cargo.toml $(SOURCE)/Cargo.lock $(shell find $(SOURCE)/src -type f)
|
||||
mkdir -p $(BUILD)
|
||||
cd "$(SOURCE)"
|
||||
env RUSTFLAGS="--cfg aes_force_soft" \
|
||||
cargo rustc \
|
||||
--manifest-path="$<" \
|
||||
-Z build-std=core,alloc \
|
||||
-Z build-std-features=compiler-builtins-mem \
|
||||
--target $(TARGET) \
|
||||
--bin bootloader \
|
||||
--release \
|
||||
--features live \
|
||||
-- \
|
||||
--emit link="$@"
|
||||
|
||||
$(BUILD)/esp.bin: $(BUILD)/bootloader.efi
|
||||
rm -f "$@.partial"
|
||||
fallocate -l 1MiB $@.partial
|
||||
mkfs.vfat "$@.partial"
|
||||
mmd -i "$@.partial" efi
|
||||
mmd -i "$@.partial" efi/boot
|
||||
mcopy -i "$@.partial" "$<" ::efi/boot/bootx64.efi
|
||||
mv "$@.partial" "$@"
|
||||
|
||||
$(BUILD)/harddrive.bin: $(BUILD)/esp.bin $(BUILD)/filesystem.bin
|
||||
rm -f "$@.partial"
|
||||
fallocate -l 320MiB "$@.partial"
|
||||
$(PARTED) -s -a minimal "$@.partial" mklabel gpt
|
||||
$(PARTED) -s -a minimal "$@.partial" mkpart ESP FAT32 1MiB 2MiB
|
||||
$(PARTED) -s -a minimal "$@.partial" mkpart REDOXFS 2MiB 100%
|
||||
$(PARTED) -s -a minimal "$@.partial" toggle 1 boot
|
||||
dd if="$(BUILD)/esp.bin" of="$@.partial" bs=1MiB seek=1 conv=notrunc
|
||||
dd if="$(BUILD)/filesystem.bin" of="$@.partial" bs=1MiB seek=2 conv=notrunc
|
||||
mv "$@.partial" "$@"
|
||||
|
||||
$(BUILD)/firmware.rom: /usr/share/OVMF/OVMF_CODE.fd
|
||||
cp "$<" "$@"
|
||||
|
||||
qemu: $(BUILD)/harddrive.bin $(BUILD)/firmware.rom
|
||||
$(QEMU) \
|
||||
-d cpu_reset \
|
||||
-no-reboot \
|
||||
-smp 4 -m 2048 \
|
||||
-chardev stdio,id=debug,signal=off,mux=on \
|
||||
-serial chardev:debug \
|
||||
-mon chardev=debug \
|
||||
-machine q35 \
|
||||
-net none \
|
||||
-enable-kvm \
|
||||
-cpu host \
|
||||
-bios "$(BUILD)/firmware.rom" \
|
||||
-drive file="$<",format=raw
|
||||
@@ -0,0 +1,3 @@
|
||||
[toolchain]
|
||||
channel = "nightly-2025-10-03"
|
||||
components = ["rust-src"]
|
||||
@@ -0,0 +1,154 @@
|
||||
use crate::area_add;
|
||||
use crate::os::{Os, OsMemoryEntry, OsMemoryKind, dtb::is_in_dev_mem_region};
|
||||
use core::slice;
|
||||
|
||||
pub(crate) const PF_PRESENT: u64 = 1 << 0;
|
||||
pub(crate) const PF_TABLE: u64 = 1 << 1;
|
||||
pub(crate) const PF_OUTER_SHAREABLE: u64 = 0b01 << 8;
|
||||
pub(crate) const PF_INNER_SHAREABLE: u64 = 0b11 << 8;
|
||||
pub(crate) const PF_ACCESS: u64 = 1 << 10;
|
||||
|
||||
pub(crate) const PF_DEV: u64 = PF_OUTER_SHAREABLE | 2 << 2;
|
||||
pub(crate) const PF_RAM: u64 = PF_INNER_SHAREABLE;
|
||||
|
||||
pub(crate) const ENTRY_ADDRESS_MASK: u64 = 0x000F_FFFF_FFFF_F000;
|
||||
pub(crate) const PAGE_ENTRIES: usize = 512;
|
||||
const PAGE_SIZE: usize = 4096;
|
||||
pub(crate) const PHYS_OFFSET: u64 = 0xFFFF_8000_0000_0000;
|
||||
|
||||
unsafe fn paging_allocate(os: &impl Os) -> Option<&'static mut [u64]> {
|
||||
unsafe {
|
||||
let ptr = os.alloc_zeroed_page_aligned(PAGE_SIZE);
|
||||
if !ptr.is_null() {
|
||||
area_add(OsMemoryEntry {
|
||||
base: ptr as u64,
|
||||
size: PAGE_SIZE as u64,
|
||||
kind: OsMemoryKind::Reclaim,
|
||||
});
|
||||
Some(slice::from_raw_parts_mut(ptr as *mut u64, PAGE_ENTRIES))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
// Create L0
|
||||
let l0 = paging_allocate(os)?;
|
||||
|
||||
{
|
||||
// Create L1 for identity mapping
|
||||
let l1 = paging_allocate(os)?;
|
||||
|
||||
// Link first user and first kernel L0 entry to L1
|
||||
l0[0] = l1.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
l0[256] = l1.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
|
||||
// Identity map 8 GiB using 1 GiB pages
|
||||
for l1_i in 0..8 {
|
||||
let addr = l1_i as u64 * 0x4000_0000;
|
||||
//TODO: is PF_RAM okay?
|
||||
l1[l1_i] = addr | PF_ACCESS | PF_DEV | PF_PRESENT;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
// Create L1 for kernel mapping
|
||||
let l1 = paging_allocate(os)?;
|
||||
|
||||
// Link second to last L0 entry to L1
|
||||
l0[510] = l1.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
|
||||
// Map kernel_size at kernel offset
|
||||
let mut kernel_mapped = 0;
|
||||
let mut l1_i = 0;
|
||||
while kernel_mapped < kernel_size && l1_i < l1.len() {
|
||||
let l2 = paging_allocate(os)?;
|
||||
l1[l1_i] = l2.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
l1_i += 1;
|
||||
|
||||
let mut l2_i = 0;
|
||||
while kernel_mapped < kernel_size && l2_i < l2.len() {
|
||||
let l3 = paging_allocate(os)?;
|
||||
l2[l2_i] = l3.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
l2_i += 1;
|
||||
|
||||
let mut l3_i = 0;
|
||||
while kernel_mapped < kernel_size && l3_i < l3.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
l3[l3_i] = addr | PF_ACCESS | PF_RAM | PF_TABLE | PF_PRESENT;
|
||||
l3_i += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
}
|
||||
|
||||
Some(l0.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_framebuffer(
|
||||
os: &impl Os,
|
||||
page_phys: usize,
|
||||
framebuffer_phys: u64,
|
||||
framebuffer_size: u64,
|
||||
) -> Option<u64> {
|
||||
unsafe {
|
||||
//TODO: smarter test for framebuffer already mapped
|
||||
if framebuffer_phys + framebuffer_size <= 0x2_0000_0000 {
|
||||
return Some(framebuffer_phys + PHYS_OFFSET);
|
||||
}
|
||||
|
||||
let l0_i = ((framebuffer_phys / 0x80_0000_0000) + 256) as usize;
|
||||
let mut l1_i = ((framebuffer_phys % 0x80_0000_0000) / 0x4000_0000) as usize;
|
||||
let mut l2_i = ((framebuffer_phys % 0x4000_0000) / 0x20_0000) as usize;
|
||||
let mut l3_i = ((framebuffer_phys % 0x20_0000) / (PAGE_SIZE as u64)) as usize;
|
||||
assert_eq!(framebuffer_phys % (PAGE_SIZE as u64), 0);
|
||||
|
||||
let l0 = slice::from_raw_parts_mut(page_phys as *mut u64, PAGE_ENTRIES);
|
||||
|
||||
// Create l1 for framebuffer mapping
|
||||
let l1 = if l0[l0_i] == 0 {
|
||||
let l1 = paging_allocate(os)?;
|
||||
l0[l0_i] = l1.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
l1
|
||||
} else {
|
||||
slice::from_raw_parts_mut((l0[l0_i] & ENTRY_ADDRESS_MASK) as *mut u64, PAGE_ENTRIES)
|
||||
};
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut framebuffer_mapped = 0;
|
||||
while framebuffer_mapped < framebuffer_size && l1_i < l1.len() {
|
||||
let l2 = paging_allocate(os)?;
|
||||
assert_eq!(l1[l1_i], 0);
|
||||
l1[l1_i] = l2.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
|
||||
while framebuffer_mapped < framebuffer_size && l2_i < l2.len() {
|
||||
let l3 = paging_allocate(os)?;
|
||||
assert_eq!(l2[l2_i], 0);
|
||||
l2[l2_i] = l3.as_ptr() as u64 | PF_ACCESS | PF_TABLE | PF_PRESENT;
|
||||
|
||||
while framebuffer_mapped < framebuffer_size && l3_i < l3.len() {
|
||||
let addr = framebuffer_phys + framebuffer_mapped;
|
||||
assert_eq!(l3[l3_i], 0);
|
||||
//TODO: is PF_RAM okay?
|
||||
l3[l3_i] = addr | PF_ACCESS | PF_RAM | PF_TABLE | PF_PRESENT;
|
||||
framebuffer_mapped += PAGE_SIZE as u64;
|
||||
l3_i += 1;
|
||||
}
|
||||
|
||||
l2_i += 1;
|
||||
l3_i = 0;
|
||||
}
|
||||
|
||||
l1_i += 1;
|
||||
l2_i = 0;
|
||||
}
|
||||
assert!(framebuffer_mapped >= framebuffer_size);
|
||||
|
||||
Some(framebuffer_phys + PHYS_OFFSET)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,17 @@
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub use self::aarch64::*;
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
mod aarch64;
|
||||
|
||||
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
|
||||
pub use self::x86::*;
|
||||
|
||||
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
|
||||
mod x86;
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
pub use self::riscv64::*;
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
mod riscv64;
|
||||
@@ -0,0 +1,59 @@
|
||||
use core::slice;
|
||||
|
||||
use crate::area_add;
|
||||
use crate::os::{Os, OsMemoryEntry, OsMemoryKind};
|
||||
|
||||
pub(crate) mod sv39;
|
||||
pub(crate) mod sv48;
|
||||
pub(crate) mod sv57;
|
||||
|
||||
// Common constants
|
||||
const PAGE_SHIFT: usize = 12;
|
||||
const TABLE_SHIFT: usize = 9;
|
||||
const TABLE_MASK: usize = (1 << TABLE_SHIFT) - 1;
|
||||
const PAGE_ENTRIES: usize = 512;
|
||||
const PAGE_SIZE: usize = 4096;
|
||||
const PHYS_MASK: usize = (1usize << 44) - 1;
|
||||
|
||||
const VALID: u64 = 1;
|
||||
const RWX: u64 = 7 << 1;
|
||||
const ACCESSED: u64 = 1 << 6;
|
||||
const DIRTY: u64 = 1 << 7;
|
||||
|
||||
extern crate alloc;
|
||||
|
||||
pub(crate) use sv39::PHYS_OFFSET;
|
||||
pub(crate) use sv39::SATP_BITS;
|
||||
pub(crate) use sv39::paging_create;
|
||||
pub(crate) use sv39::paging_physmem as paging_framebuffer;
|
||||
|
||||
unsafe fn paging_allocate(os: &impl Os) -> Option<&'static mut [u64]> {
|
||||
unsafe {
|
||||
let ptr = os.alloc_zeroed_page_aligned(PAGE_SIZE);
|
||||
if !ptr.is_null() {
|
||||
area_add(OsMemoryEntry {
|
||||
base: ptr as u64,
|
||||
size: PAGE_SIZE as u64,
|
||||
kind: OsMemoryKind::Reclaim,
|
||||
});
|
||||
Some(slice::from_raw_parts_mut(ptr as *mut u64, PAGE_ENTRIES))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unsafe fn get_table(os: &impl Os, parent: &mut [u64], index: usize) -> Option<&'static mut [u64]> {
|
||||
unsafe {
|
||||
if parent[index] == 0 {
|
||||
let table = paging_allocate(os)?;
|
||||
parent[index] = table.as_ptr() as u64 >> 2 | VALID;
|
||||
Some(table)
|
||||
} else {
|
||||
Some(slice::from_raw_parts_mut(
|
||||
(((parent[index] >> 10) & PHYS_MASK as u64) << 12) as *mut u64,
|
||||
PAGE_ENTRIES,
|
||||
))
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,90 @@
|
||||
use core::slice;
|
||||
|
||||
use super::*;
|
||||
use crate::os::Os;
|
||||
|
||||
// Sv39 scheme
|
||||
|
||||
pub(crate) const PHYS_OFFSET: u64 = 0xFFFF_FFC0_0000_0000;
|
||||
pub(crate) const SATP_BITS: usize = 8;
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
// Create L2
|
||||
let l2 = paging_allocate(os)?;
|
||||
|
||||
{
|
||||
// Create L1 for identity mapping
|
||||
for l2_i in 0..8 {
|
||||
let addr = l2_i as u64 * 0x4000_0000;
|
||||
// Identity map 8 GiB using 1GB pages
|
||||
l2[l2_i] = addr >> 2 | RWX | VALID | ACCESSED | DIRTY;
|
||||
// map phys into kernel VAS
|
||||
l2[(PAGE_ENTRIES / 2) + l2_i] = addr >> 2 | RWX | VALID | ACCESSED | DIRTY;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
// Create L1 for kernel mapping
|
||||
let l1 = paging_allocate(os)?;
|
||||
|
||||
// Link second to last L0 entry to L1
|
||||
l2[510] = l1.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Map kernel_size at kernel offset
|
||||
let mut kernel_mapped = 0;
|
||||
let mut l1_i = 0;
|
||||
while kernel_mapped < kernel_size && l1_i < l1.len() {
|
||||
let l0 = paging_allocate(os)?;
|
||||
l1[l1_i] = l0.as_ptr() as u64 >> 2 | VALID;
|
||||
l1_i += 1;
|
||||
|
||||
let mut l0_i = 0;
|
||||
while kernel_mapped < kernel_size && l0_i < l2.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
l0[l0_i] = addr >> 2 | RWX | VALID | ACCESSED | DIRTY;
|
||||
l0_i += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
}
|
||||
|
||||
Some(l2.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_physmem(os: &impl Os, page_phys: usize, phys: u64, size: u64) -> Option<u64> {
|
||||
unsafe {
|
||||
if phys + size <= 0x2_0000_0000 {
|
||||
return Some(phys + PHYS_OFFSET);
|
||||
}
|
||||
|
||||
let mut l1_i = (phys as usize >> (PAGE_SHIFT + 2 * TABLE_SHIFT)) + PAGE_ENTRIES / 2;
|
||||
let mut l0_i = (phys as usize >> (PAGE_SHIFT + TABLE_SHIFT)) & TABLE_MASK;
|
||||
assert_eq!(phys & ((1 << (PAGE_SHIFT + TABLE_SHIFT)) - 1), 0);
|
||||
|
||||
let l1 = slice::from_raw_parts_mut(page_phys as *mut u64, PAGE_ENTRIES);
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut mapped = 0;
|
||||
while mapped < size && l1_i < l1.len() {
|
||||
let l0 = get_table(os, l1, l1_i)?;
|
||||
|
||||
while mapped < size && l0_i < l0.len() {
|
||||
let addr = phys + mapped;
|
||||
assert_eq!(l0[l0_i], 0);
|
||||
l0[l0_i] = (addr >> 2) | RWX | VALID | ACCESSED | DIRTY;
|
||||
mapped += 1 << (PAGE_SHIFT + TABLE_SHIFT); // Map with 2mb mega-pages
|
||||
l0_i += 1;
|
||||
}
|
||||
|
||||
l1_i += 1;
|
||||
l0_i = 0;
|
||||
}
|
||||
|
||||
assert!(mapped >= size);
|
||||
|
||||
Some(phys + PHYS_OFFSET)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,108 @@
|
||||
use core::slice;
|
||||
|
||||
use super::*;
|
||||
use crate::os::Os;
|
||||
|
||||
// Sv48 scheme
|
||||
|
||||
pub(crate) const PHYS_OFFSET: u64 = 0xFFFF_8000_0000_0000;
|
||||
pub(crate) const SATP_BITS: usize = 9;
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
// Create L3
|
||||
let l3 = paging_allocate(os)?;
|
||||
|
||||
{
|
||||
// Create L2 for identity mapping
|
||||
let l2 = paging_allocate(os)?;
|
||||
|
||||
// Map L2 into beginning of userspace and kernelspace
|
||||
l3[0] = (l2.as_ptr() as u64 >> 2) | VALID;
|
||||
l3[PAGE_ENTRIES / 2] = (l2.as_ptr() as u64 >> 2) | VALID;
|
||||
|
||||
// Identity map 8 GiB using 1GB pages
|
||||
for l2_i in 0..8 {
|
||||
let addr = l2_i as u64 * 0x4000_0000;
|
||||
l2[l2_i] = addr >> 2 | RWX | VALID;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
// Create L2 for kernel mapping
|
||||
let l2 = paging_allocate(os)?;
|
||||
|
||||
// Link last L3 entry to L2
|
||||
l3[511] = l2.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Create L1 for kernel mapping
|
||||
let l1 = paging_allocate(os)?;
|
||||
|
||||
// Link last L1 entry to L2
|
||||
l2[510] = l1.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Map kernel_size at kernel offset
|
||||
let mut kernel_mapped = 0;
|
||||
let mut l1_i = 0;
|
||||
while kernel_mapped < kernel_size && l1_i < l1.len() {
|
||||
let l0 = paging_allocate(os)?;
|
||||
l1[l1_i] = l0.as_ptr() as u64 >> 2 | VALID;
|
||||
l1_i += 1;
|
||||
|
||||
let mut l0_i = 0;
|
||||
while kernel_mapped < kernel_size && l0_i < l2.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
l0[l0_i] = addr >> 2 | RWX | VALID | ACCESSED | DIRTY;
|
||||
l0_i += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
}
|
||||
|
||||
Some(l3.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_physmem(os: &impl Os, page_phys: usize, phys: u64, size: u64) -> Option<u64> {
|
||||
unsafe {
|
||||
if phys + size <= 0x2_0000_0000 {
|
||||
return Some(phys + PHYS_OFFSET);
|
||||
}
|
||||
|
||||
let mut l2_i = (phys as usize >> (PAGE_SHIFT + 3 * TABLE_SHIFT)) + PAGE_ENTRIES / 2;
|
||||
let mut l1_i = (phys as usize >> (PAGE_SHIFT + 2 * TABLE_SHIFT)) & TABLE_MASK;
|
||||
let mut l0_i = (phys as usize >> (PAGE_SHIFT + TABLE_SHIFT)) & TABLE_MASK;
|
||||
assert_eq!(phys & ((1 << (PAGE_SHIFT + TABLE_SHIFT)) - 1), 0);
|
||||
|
||||
let l2 = slice::from_raw_parts_mut(page_phys as *mut u64, PAGE_ENTRIES);
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut mapped = 0;
|
||||
while mapped < size && l2_i < l2.len() {
|
||||
let l1 = get_table(os, l2, l2_i)?;
|
||||
|
||||
while mapped < size && l1_i < l1.len() {
|
||||
let l0 = get_table(os, l1, l1_i)?;
|
||||
|
||||
while mapped < size && l0_i < l0.len() {
|
||||
let addr = phys + mapped;
|
||||
assert_eq!(l0[l0_i], 0);
|
||||
l0[l0_i] = (addr >> 2) | RWX | VALID;
|
||||
mapped += 1 << (PAGE_SHIFT + TABLE_SHIFT);
|
||||
l0_i += 1;
|
||||
}
|
||||
|
||||
l1_i += 1;
|
||||
l0_i = 0;
|
||||
}
|
||||
|
||||
l2_i += 1;
|
||||
l1_i = 0;
|
||||
}
|
||||
|
||||
assert!(mapped >= size);
|
||||
|
||||
Some(phys + PHYS_OFFSET)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,124 @@
|
||||
use core::slice;
|
||||
|
||||
use super::*;
|
||||
use crate::os::Os;
|
||||
|
||||
// Sv57 scheme
|
||||
|
||||
pub(crate) const PHYS_OFFSET: u64 = 0xFF00_0000_0000_0000;
|
||||
pub(crate) const SATP_BIT: usize = 10;
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
// Create L4
|
||||
let l4 = paging_allocate(os)?;
|
||||
|
||||
{
|
||||
// Create L3
|
||||
let l3 = paging_allocate(os)?;
|
||||
|
||||
// Map L3 into beginning of userspace and kernelspace
|
||||
l4[0] = (l3.as_ptr() as u64 >> 2) | VALID;
|
||||
l4[PAGE_ENTRIES / 2] = (l3.as_ptr() as u64 >> 2) | VALID;
|
||||
|
||||
// Create L2 for identity mapping
|
||||
let l2 = paging_allocate(os)?;
|
||||
|
||||
// Identity map 8 GiB using 1GB pages
|
||||
for l2_i in 0..8 {
|
||||
let addr = l2_i as u64 * 0x4000_0000;
|
||||
l2[l2_i] = addr >> 2 | RWX | VALID;
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
// Create L3
|
||||
let l3 = paging_allocate(os)?;
|
||||
|
||||
// Link last L4 entry to L3
|
||||
l4[511] = l3.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Create L2 for kernel mapping
|
||||
let l2 = paging_allocate(os)?;
|
||||
|
||||
// Link last L3 entry to L2
|
||||
l3[511] = l2.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Create L1 for kernel mapping
|
||||
let l1 = paging_allocate(os)?;
|
||||
|
||||
// Link last L1 entry to L2
|
||||
l2[510] = l1.as_ptr() as u64 >> 2 | VALID;
|
||||
|
||||
// Map kernel_size at kernel offset
|
||||
let mut kernel_mapped = 0;
|
||||
let mut l1_i = 0;
|
||||
while kernel_mapped < kernel_size && l1_i < l1.len() {
|
||||
let l0 = paging_allocate(os)?;
|
||||
l1[l1_i] = l0.as_ptr() as u64 >> 2 | VALID;
|
||||
l1_i += 1;
|
||||
|
||||
let mut l0_i = 0;
|
||||
while kernel_mapped < kernel_size && l0_i < l2.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
l0[l0_i] = addr >> 2 | RWX | VALID | ACCESSED | DIRTY;
|
||||
l0_i += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
}
|
||||
|
||||
Some(l4.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_physmem(os: &impl Os, page_phys: usize, phys: u64, size: u64) -> Option<u64> {
|
||||
unsafe {
|
||||
if phys + size <= 0x2_0000_0000 {
|
||||
return Some(phys + PHYS_OFFSET);
|
||||
}
|
||||
let mut l3_i = (phys as usize >> (PAGE_SHIFT + 4 * TABLE_SHIFT)) + PAGE_ENTRIES / 2;
|
||||
let mut l2_i = (phys as usize >> (PAGE_SHIFT + 3 * TABLE_SHIFT)) & TABLE_MASK;
|
||||
let mut l1_i = (phys as usize >> (PAGE_SHIFT + 2 * TABLE_SHIFT)) & TABLE_MASK;
|
||||
let mut l0_i = (phys as usize >> (PAGE_SHIFT + TABLE_SHIFT)) & TABLE_MASK;
|
||||
assert_eq!(phys & ((1 << (PAGE_SHIFT + TABLE_SHIFT)) - 1), 0);
|
||||
|
||||
let l3 = slice::from_raw_parts_mut(page_phys as *mut u64, PAGE_ENTRIES);
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut mapped = 0;
|
||||
|
||||
while mapped < size && l3_i < l3.len() {
|
||||
let l2 = get_table(os, l3, l3_i)?;
|
||||
|
||||
while mapped < size && l2_i < l2.len() {
|
||||
let l1 = get_table(os, l2, l2_i)?;
|
||||
|
||||
while mapped < size && l1_i < l1.len() {
|
||||
let l0 = get_table(os, l1, l1_i)?;
|
||||
|
||||
while mapped < size && l0_i < l0.len() {
|
||||
let addr = phys + mapped;
|
||||
assert_eq!(l0[l0_i], 0);
|
||||
l0[l0_i] = (addr >> 2) | RWX | VALID;
|
||||
mapped += 1 << (PAGE_SHIFT + TABLE_SHIFT);
|
||||
l0_i += 1;
|
||||
}
|
||||
|
||||
l1_i += 1;
|
||||
l0_i = 0;
|
||||
}
|
||||
|
||||
l2_i += 1;
|
||||
l1_i = 0;
|
||||
}
|
||||
l3_i += 1;
|
||||
l2_i += 0;
|
||||
}
|
||||
|
||||
assert!(mapped >= size);
|
||||
|
||||
Some(phys + PHYS_OFFSET)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
use crate::os::Os;
|
||||
|
||||
pub(crate) mod x32;
|
||||
pub(crate) mod x64;
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
if crate::KERNEL_64BIT {
|
||||
x64::paging_create(os, kernel_phys, kernel_size)
|
||||
} else {
|
||||
x32::paging_create(os, kernel_phys, kernel_size)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_framebuffer(
|
||||
os: &impl Os,
|
||||
page_phys: usize,
|
||||
framebuffer_phys: u64,
|
||||
framebuffer_size: u64,
|
||||
) -> Option<u64> {
|
||||
unsafe {
|
||||
if crate::KERNEL_64BIT {
|
||||
x64::paging_framebuffer(os, page_phys, framebuffer_phys, framebuffer_size)
|
||||
} else {
|
||||
x32::paging_framebuffer(os, page_phys, framebuffer_phys, framebuffer_size)
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,88 @@
|
||||
use crate::area_add;
|
||||
use crate::os::{Os, OsMemoryEntry, OsMemoryKind};
|
||||
use core::slice;
|
||||
|
||||
const PAGE_ENTRIES: usize = 1024;
|
||||
const PAGE_SIZE: usize = 4096;
|
||||
pub(crate) const PHYS_OFFSET: u32 = 0x8000_0000;
|
||||
|
||||
unsafe fn paging_allocate(os: &impl Os) -> Option<&'static mut [u32]> {
|
||||
unsafe {
|
||||
let ptr = os.alloc_zeroed_page_aligned(PAGE_SIZE);
|
||||
if !ptr.is_null() {
|
||||
area_add(OsMemoryEntry {
|
||||
base: ptr as u64,
|
||||
size: PAGE_SIZE as u64,
|
||||
kind: OsMemoryKind::Reclaim,
|
||||
});
|
||||
Some(slice::from_raw_parts_mut(ptr as *mut u32, PAGE_ENTRIES))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
let pd = paging_allocate(os)?;
|
||||
//Identity map 1 GiB using 4 MiB pages, also map at PHYS_OFFSET
|
||||
for pd_i in 0..256 {
|
||||
let addr = pd_i as u32 * 0x40_0000;
|
||||
pd[pd_i] = addr | 1 << 7 | 1 << 1 | 1;
|
||||
pd[pd_i + 512] = addr | 1 << 7 | 1 << 1 | 1;
|
||||
}
|
||||
|
||||
// Map kernel_size at kernel offset
|
||||
let mut kernel_mapped = 0;
|
||||
let mut pd_i = 0xC000_0000 / 0x40_0000;
|
||||
while kernel_mapped < kernel_size && pd_i < pd.len() {
|
||||
let pt = paging_allocate(os)?;
|
||||
pd[pd_i] = pt.as_ptr() as u32 | 1 << 1 | 1;
|
||||
pd_i += 1;
|
||||
|
||||
let mut pt_i = 0;
|
||||
while kernel_mapped < kernel_size && pt_i < pt.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
pt[pt_i] = addr as u32 | 1 << 1 | 1;
|
||||
pt_i += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
|
||||
Some(pd.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_framebuffer(
|
||||
os: &impl Os,
|
||||
page_phys: usize,
|
||||
framebuffer_phys: u64,
|
||||
framebuffer_size: u64,
|
||||
) -> Option<u64> {
|
||||
unsafe {
|
||||
let framebuffer_virt = 0xD000_0000; // 256 MiB after kernel mapping, but before heap mapping
|
||||
|
||||
let pd = slice::from_raw_parts_mut(page_phys as *mut u32, PAGE_ENTRIES);
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut framebuffer_mapped = 0;
|
||||
let mut pd_i = framebuffer_virt / 0x40_0000;
|
||||
while framebuffer_mapped < framebuffer_size && pd_i < pd.len() {
|
||||
let pt = paging_allocate(os)?;
|
||||
pd[pd_i] = pt.as_ptr() as u32 | 1 << 1 | 1;
|
||||
pd_i += 1;
|
||||
|
||||
let mut pt_i = 0;
|
||||
while framebuffer_mapped < framebuffer_size && pt_i < pt.len() {
|
||||
let addr = framebuffer_phys + framebuffer_mapped;
|
||||
pt[pt_i] = addr as u32 | 1 << 1 | 1;
|
||||
pt_i += 1;
|
||||
framebuffer_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(framebuffer_mapped >= framebuffer_size);
|
||||
|
||||
Some(framebuffer_virt as u64)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,148 @@
|
||||
use core::slice;
|
||||
|
||||
use crate::area_add;
|
||||
use crate::os::{Os, OsMemoryEntry, OsMemoryKind};
|
||||
|
||||
const ENTRY_ADDRESS_MASK: u64 = 0x000F_FFFF_FFFF_F000;
|
||||
const PAGE_ENTRIES: usize = 512;
|
||||
const PAGE_SIZE: usize = 4096;
|
||||
pub(crate) const PHYS_OFFSET: u64 = 0xFFFF_8000_0000_0000;
|
||||
|
||||
unsafe fn paging_allocate(os: &impl Os) -> Option<&'static mut [u64]> {
|
||||
unsafe {
|
||||
let ptr = os.alloc_zeroed_page_aligned(PAGE_SIZE);
|
||||
if !ptr.is_null() {
|
||||
area_add(OsMemoryEntry {
|
||||
base: ptr as u64,
|
||||
size: PAGE_SIZE as u64,
|
||||
kind: OsMemoryKind::Reclaim,
|
||||
});
|
||||
|
||||
Some(slice::from_raw_parts_mut(ptr as *mut u64, PAGE_ENTRIES))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const PRESENT: u64 = 1;
|
||||
const WRITABLE: u64 = 1 << 1;
|
||||
const LARGE: u64 = 1 << 7;
|
||||
|
||||
pub unsafe fn paging_create(os: &impl Os, kernel_phys: u64, kernel_size: u64) -> Option<usize> {
|
||||
unsafe {
|
||||
// Create PML4
|
||||
let pml4 = paging_allocate(os)?;
|
||||
|
||||
{
|
||||
// Create PDP for identity mapping
|
||||
let pdp = paging_allocate(os)?;
|
||||
|
||||
// Link first user and first kernel PML4 entry to PDP
|
||||
pml4[0] = pdp.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
pml4[256] = pdp.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
|
||||
// Identity map 8 GiB using 2 MiB pages
|
||||
for pdp_i in 0..8 {
|
||||
let pd = paging_allocate(os)?;
|
||||
pdp[pdp_i] = pd.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
for pd_i in 0..pd.len() {
|
||||
let addr = pdp_i as u64 * 0x4000_0000 + pd_i as u64 * 0x20_0000;
|
||||
pd[pd_i] = addr | LARGE | WRITABLE | PRESENT;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
// Create PDP (spanning 512 GiB) for kernel mapping
|
||||
let pdp = paging_allocate(os)?;
|
||||
|
||||
// Link last PML4 entry to PDP
|
||||
pml4[511] = pdp.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
|
||||
// Create PD (spanning 1 GiB) for kernel mapping.
|
||||
let pd = paging_allocate(os)?;
|
||||
|
||||
// The kernel is mapped at -2^31, i.e. 0xFFFF_FFFF_8000_0000. Since a PD is 1 GiB, link
|
||||
// the second last PDP entry to PD.
|
||||
pdp[510] = pd.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
|
||||
// Map kernel_size bytes to kernel offset, i.e. to the start of the PD.
|
||||
|
||||
let mut kernel_mapped = 0;
|
||||
|
||||
let mut pd_idx = 0;
|
||||
while kernel_mapped < kernel_size && pd_idx < pd.len() {
|
||||
let pt = paging_allocate(os)?;
|
||||
pd[pd_idx] = pt.as_ptr() as u64 | WRITABLE | PRESENT;
|
||||
pd_idx += 1;
|
||||
|
||||
let mut pt_idx = 0;
|
||||
while kernel_mapped < kernel_size && pt_idx < pt.len() {
|
||||
let addr = kernel_phys + kernel_mapped;
|
||||
pt[pt_idx] = addr | WRITABLE | PRESENT;
|
||||
pt_idx += 1;
|
||||
kernel_mapped += PAGE_SIZE as u64;
|
||||
}
|
||||
}
|
||||
assert!(kernel_mapped >= kernel_size);
|
||||
}
|
||||
|
||||
Some(pml4.as_ptr() as usize)
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn paging_framebuffer(
|
||||
os: &impl Os,
|
||||
page_phys: usize,
|
||||
framebuffer_phys: u64,
|
||||
framebuffer_size: u64,
|
||||
) -> Option<u64> {
|
||||
unsafe {
|
||||
//TODO: smarter test for framebuffer already mapped
|
||||
if framebuffer_phys + framebuffer_size <= 0x2_0000_0000 {
|
||||
return Some(framebuffer_phys + PHYS_OFFSET);
|
||||
}
|
||||
|
||||
let pml4_i = ((framebuffer_phys / 0x80_0000_0000) + 256) as usize;
|
||||
let mut pdp_i = ((framebuffer_phys % 0x80_0000_0000) / 0x4000_0000) as usize;
|
||||
let mut pd_i = ((framebuffer_phys % 0x4000_0000) / 0x20_0000) as usize;
|
||||
assert_eq!(framebuffer_phys % 0x20_0000, 0);
|
||||
|
||||
let pml4 = slice::from_raw_parts_mut(page_phys as *mut u64, PAGE_ENTRIES);
|
||||
|
||||
// Create PDP for framebuffer mapping
|
||||
let pdp = if pml4[pml4_i] == 0 {
|
||||
let pdp = paging_allocate(os)?;
|
||||
pml4[pml4_i] = pdp.as_ptr() as u64 | 1 << 1 | 1;
|
||||
pdp
|
||||
} else {
|
||||
slice::from_raw_parts_mut(
|
||||
(pml4[pml4_i] & ENTRY_ADDRESS_MASK) as *mut u64,
|
||||
PAGE_ENTRIES,
|
||||
)
|
||||
};
|
||||
|
||||
// Map framebuffer_size at framebuffer offset
|
||||
let mut framebuffer_mapped = 0;
|
||||
while framebuffer_mapped < framebuffer_size && pdp_i < pdp.len() {
|
||||
let pd = paging_allocate(os)?;
|
||||
assert_eq!(pdp[pdp_i], 0);
|
||||
pdp[pdp_i] = pd.as_ptr() as u64 | 1 << 1 | 1;
|
||||
|
||||
while framebuffer_mapped < framebuffer_size && pd_i < pd.len() {
|
||||
let addr = framebuffer_phys + framebuffer_mapped;
|
||||
assert_eq!(pd[pd_i], 0);
|
||||
pd[pd_i] = addr | 1 << 7 | 1 << 1 | 1;
|
||||
framebuffer_mapped += 0x20_0000;
|
||||
pd_i += 1;
|
||||
}
|
||||
|
||||
pdp_i += 1;
|
||||
pd_i = 0;
|
||||
}
|
||||
assert!(framebuffer_mapped >= framebuffer_size);
|
||||
|
||||
Some(framebuffer_phys + PHYS_OFFSET)
|
||||
}
|
||||
}
|
||||
+121
@@ -0,0 +1,121 @@
|
||||
use crate::os::{Os, OsKey};
|
||||
|
||||
fn edit_banner(os: &impl Os) {
|
||||
os.clear_text();
|
||||
println!("--- Redox Bootloader Environment Editor ---");
|
||||
println!("ENTER twice to boot. UP/DOWN to edit lines.");
|
||||
println!("-------------------------------------------");
|
||||
}
|
||||
|
||||
pub fn edit_env(os: &impl Os, env_ptr: *mut u8, env_size: &mut usize, max_size: usize) {
|
||||
edit_banner(os);
|
||||
|
||||
let env_slice = unsafe { core::slice::from_raw_parts_mut(env_ptr, max_size) };
|
||||
// counting at line index
|
||||
let mut cursor = 0xFFF;
|
||||
// position at current line, not including LF
|
||||
let mut cursor_start = 0;
|
||||
let mut cursor_end = 0;
|
||||
let original_size = *env_size;
|
||||
|
||||
loop {
|
||||
os.set_text_position(0, 4);
|
||||
|
||||
let mut iline = 0;
|
||||
for i in 0..*env_size {
|
||||
let c = env_slice[i] as char;
|
||||
if c == '\n' {
|
||||
os.set_text_highlight(iline == cursor);
|
||||
print!(" ");
|
||||
os.set_text_highlight(false);
|
||||
print!("\n");
|
||||
iline += 1;
|
||||
if iline == cursor {
|
||||
cursor_start = i + 1;
|
||||
}
|
||||
} else {
|
||||
print!("{}", c);
|
||||
}
|
||||
if iline == cursor {
|
||||
cursor_end = i + 1;
|
||||
}
|
||||
}
|
||||
if cursor > iline {
|
||||
cursor = iline;
|
||||
// update cursors, should never hang
|
||||
continue;
|
||||
}
|
||||
os.set_text_highlight(iline == cursor);
|
||||
print!(" ");
|
||||
os.set_text_highlight(false);
|
||||
|
||||
match os.get_key() {
|
||||
OsKey::Enter => {
|
||||
if cursor_start == cursor_end {
|
||||
// blank line to boot
|
||||
break;
|
||||
}
|
||||
|
||||
if *env_size < max_size - 1 {
|
||||
if *env_size == max_size {
|
||||
continue;
|
||||
}
|
||||
for i in (cursor_end..*env_size).rev() {
|
||||
env_slice[i + 1] = env_slice[i];
|
||||
}
|
||||
env_slice[cursor_end] = b'\n';
|
||||
*env_size += 1;
|
||||
cursor += 1;
|
||||
edit_banner(os);
|
||||
}
|
||||
}
|
||||
OsKey::Backspace => {
|
||||
if cursor_end == 0 || *env_size == 0 {
|
||||
continue;
|
||||
}
|
||||
if cursor_start == cursor_end && iline > 0 {
|
||||
iline -= 1;
|
||||
}
|
||||
for i in cursor_end..*env_size {
|
||||
env_slice[i - 1] = env_slice[i];
|
||||
}
|
||||
*env_size -= 1;
|
||||
edit_banner(os);
|
||||
}
|
||||
OsKey::Up => {
|
||||
if cursor > 0 {
|
||||
cursor -= 1;
|
||||
}
|
||||
}
|
||||
OsKey::Down => {
|
||||
cursor += 1;
|
||||
}
|
||||
OsKey::Char(c) => {
|
||||
if *env_size == max_size {
|
||||
continue;
|
||||
}
|
||||
for i in (cursor_end..*env_size).rev() {
|
||||
env_slice[i + 1] = env_slice[i];
|
||||
}
|
||||
env_slice[cursor_end] = c as u8;
|
||||
*env_size += 1;
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
if *env_size == 0 || env_slice[*env_size - 1] != b'\n' {
|
||||
if *env_size < max_size {
|
||||
env_slice[*env_size] = b'\n';
|
||||
*env_size += 1;
|
||||
}
|
||||
}
|
||||
|
||||
if *env_size < original_size {
|
||||
for i in (*env_size..original_size).rev() {
|
||||
env_slice[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
println!("\nBooting...");
|
||||
}
|
||||
@@ -0,0 +1,26 @@
|
||||
use log::{LevelFilter, Log, Metadata, Record};
|
||||
|
||||
pub static LOGGER: Logger = Logger;
|
||||
|
||||
pub struct Logger;
|
||||
|
||||
impl Logger {
|
||||
pub fn init(&'static self) {
|
||||
log::set_logger(self).unwrap();
|
||||
log::set_max_level(LevelFilter::Info);
|
||||
}
|
||||
}
|
||||
|
||||
impl Log for Logger {
|
||||
fn enabled(&self, _metadata: &Metadata) -> bool {
|
||||
true
|
||||
}
|
||||
|
||||
fn log(&self, record: &Record) {
|
||||
if self.enabled(record.metadata()) {
|
||||
println!("{} - {}", record.level(), record.args());
|
||||
}
|
||||
}
|
||||
|
||||
fn flush(&self) {}
|
||||
}
|
||||
+675
@@ -0,0 +1,675 @@
|
||||
#![no_std]
|
||||
#![cfg_attr(any(target_arch = "riscv64", target_os = "uefi"), no_main)]
|
||||
|
||||
extern crate alloc;
|
||||
|
||||
#[cfg(any(target_arch = "riscv64", target_os = "uefi"))]
|
||||
#[macro_use]
|
||||
extern crate uefi_std as std;
|
||||
|
||||
use alloc::{format, string::String, vec::Vec};
|
||||
use core::{
|
||||
cmp,
|
||||
fmt::{self, Write},
|
||||
mem, ptr, slice, str,
|
||||
};
|
||||
use redoxfs::{Disk, Node, TreeData};
|
||||
|
||||
use self::arch::{paging_create, paging_framebuffer};
|
||||
use self::os::{Os, OsHwDesc, OsKey, OsMemoryEntry, OsMemoryKind, OsVideoMode};
|
||||
|
||||
#[macro_use]
|
||||
mod os;
|
||||
|
||||
mod arch;
|
||||
mod editor;
|
||||
mod logger;
|
||||
mod serial_16550;
|
||||
|
||||
const KIBI: usize = 1024;
|
||||
const MIBI: usize = KIBI * KIBI;
|
||||
|
||||
//TODO: allocate this in a more reasonable manner
|
||||
static mut AREAS: [OsMemoryEntry; 1024] = [OsMemoryEntry {
|
||||
base: 0,
|
||||
size: 0,
|
||||
kind: OsMemoryKind::Null,
|
||||
}; 1024];
|
||||
static mut AREAS_LEN: usize = 0;
|
||||
|
||||
pub fn area_add(area: OsMemoryEntry) {
|
||||
#[allow(static_mut_refs)]
|
||||
unsafe {
|
||||
for existing_area in &mut AREAS[0..AREAS_LEN] {
|
||||
if existing_area.kind == area.kind {
|
||||
if existing_area.base.unchecked_add(existing_area.size) == area.base {
|
||||
existing_area.size += area.size;
|
||||
return;
|
||||
}
|
||||
if area.base.unchecked_add(area.size) == existing_area.base {
|
||||
existing_area.size += area.size;
|
||||
existing_area.base = area.base;
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
*AREAS.get_mut(AREAS_LEN).expect("AREAS overflowed!") = area;
|
||||
AREAS_LEN += 1;
|
||||
}
|
||||
}
|
||||
|
||||
pub static mut KERNEL_64BIT: bool = false;
|
||||
|
||||
pub static mut LIVE_OPT: Option<(u64, &'static [u8])> = None;
|
||||
|
||||
struct SliceWriter<'a> {
|
||||
slice: &'a mut [u8],
|
||||
i: usize,
|
||||
}
|
||||
|
||||
impl<'a> Write for SliceWriter<'a> {
|
||||
fn write_str(&mut self, s: &str) -> fmt::Result {
|
||||
for b in s.bytes() {
|
||||
if let Some(slice_b) = self.slice.get_mut(self.i) {
|
||||
*slice_b = b;
|
||||
self.i += 1;
|
||||
} else {
|
||||
return Err(fmt::Error);
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Debug)]
|
||||
#[repr(C, packed(8))]
|
||||
pub struct KernelArgs {
|
||||
kernel_base: u64,
|
||||
kernel_size: u64,
|
||||
stack_base: u64,
|
||||
stack_size: u64,
|
||||
env_base: u64,
|
||||
env_size: u64,
|
||||
|
||||
/// The base pointer to the saved RSDP.
|
||||
///
|
||||
/// This field can be NULL, and if so, the system has not booted with UEFI or in some other way
|
||||
/// retrieved the RSDPs. The kernel or a userspace driver will thus try searching the BIOS
|
||||
/// memory instead. On UEFI systems, searching is not guaranteed to actually work though.
|
||||
acpi_rsdp_base: u64,
|
||||
/// The size of the RSDP region.
|
||||
acpi_rsdp_size: u64,
|
||||
|
||||
areas_base: u64,
|
||||
areas_size: u64,
|
||||
|
||||
bootstrap_base: u64,
|
||||
bootstrap_size: u64,
|
||||
}
|
||||
|
||||
fn select_mode(
|
||||
os: &impl Os,
|
||||
output_i: usize,
|
||||
live: &mut bool,
|
||||
edit_env: &mut bool,
|
||||
) -> Option<OsVideoMode> {
|
||||
let mut modes = Vec::new();
|
||||
for mode in os.video_modes(output_i) {
|
||||
let mut aspect_w = mode.width;
|
||||
let mut aspect_h = mode.height;
|
||||
for i in 2..cmp::min(aspect_w / 2, aspect_h / 2) {
|
||||
while aspect_w % i == 0 && aspect_h % i == 0 {
|
||||
aspect_w /= i;
|
||||
aspect_h /= i;
|
||||
}
|
||||
}
|
||||
|
||||
modes.push((
|
||||
mode,
|
||||
format!(
|
||||
"{:>4}x{:<4} {:>3}:{:<3}",
|
||||
mode.width, mode.height, aspect_w, aspect_h
|
||||
),
|
||||
));
|
||||
}
|
||||
|
||||
if modes.is_empty() {
|
||||
return None;
|
||||
}
|
||||
|
||||
// Sort modes by pixel area, reversed
|
||||
modes.sort_by(|a, b| (b.0.width * b.0.height).cmp(&(a.0.width * a.0.height)));
|
||||
|
||||
// Set selected based on best resolution
|
||||
print!("Output {}", output_i);
|
||||
let mut selected = modes.first().map_or(0, |x| x.0.id);
|
||||
if let Some((best_width, best_height)) = os.best_resolution(output_i) {
|
||||
print!(", best resolution: {}x{}", best_width, best_height);
|
||||
for (mode, _text) in modes.iter() {
|
||||
if mode.width == best_width && mode.height == best_height {
|
||||
selected = mode.id;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
println!();
|
||||
|
||||
println!("Arrow keys and enter select mode");
|
||||
let live_mode = os.get_text_position();
|
||||
if *live {
|
||||
println!("Press l to disable live mode");
|
||||
} else {
|
||||
println!("Press l to enable live mode");
|
||||
}
|
||||
println!("Press e to edit boot environment");
|
||||
println!();
|
||||
print!(" ");
|
||||
|
||||
let (off_x, off_y) = os.get_text_position();
|
||||
let rows = 12;
|
||||
let mut mode_opt = None;
|
||||
while !modes.is_empty() {
|
||||
let mut row = 0;
|
||||
let mut col = 0;
|
||||
for (mode, text) in modes.iter() {
|
||||
if row >= rows {
|
||||
col += 1;
|
||||
row = 0;
|
||||
}
|
||||
|
||||
os.set_text_position(off_x + col * 20, off_y + row);
|
||||
os.set_text_highlight(mode.id == selected);
|
||||
|
||||
print!("{}", text);
|
||||
|
||||
row += 1;
|
||||
}
|
||||
|
||||
// Read keypress
|
||||
match os.get_key() {
|
||||
OsKey::Left => {
|
||||
if let Some(mut mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
if mode_i < rows {
|
||||
while mode_i < modes.len() {
|
||||
mode_i += rows;
|
||||
}
|
||||
}
|
||||
mode_i -= rows;
|
||||
if let Some(new) = modes.get(mode_i) {
|
||||
selected = new.0.id;
|
||||
}
|
||||
}
|
||||
}
|
||||
OsKey::Right => {
|
||||
if let Some(mut mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
mode_i += rows;
|
||||
if mode_i >= modes.len() {
|
||||
mode_i %= rows;
|
||||
}
|
||||
if let Some(new) = modes.get(mode_i) {
|
||||
selected = new.0.id;
|
||||
}
|
||||
}
|
||||
}
|
||||
OsKey::Up => {
|
||||
if let Some(mut mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
if mode_i % rows == 0 {
|
||||
mode_i += rows;
|
||||
if mode_i > modes.len() {
|
||||
mode_i = modes.len();
|
||||
}
|
||||
}
|
||||
mode_i -= 1;
|
||||
if let Some(new) = modes.get(mode_i) {
|
||||
selected = new.0.id;
|
||||
}
|
||||
}
|
||||
}
|
||||
OsKey::Down => {
|
||||
if let Some(mut mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
mode_i += 1;
|
||||
if mode_i % rows == 0 {
|
||||
mode_i -= rows;
|
||||
}
|
||||
if mode_i >= modes.len() {
|
||||
mode_i = mode_i - mode_i % rows;
|
||||
}
|
||||
if let Some(new) = modes.get(mode_i) {
|
||||
selected = new.0.id;
|
||||
}
|
||||
}
|
||||
}
|
||||
OsKey::Enter => {
|
||||
if let Some(mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
if let Some((mode, _text)) = modes.get(mode_i) {
|
||||
mode_opt = Some(*mode);
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
OsKey::Char('l') => {
|
||||
*live = !*live;
|
||||
os.set_text_position(live_mode.0, live_mode.1);
|
||||
if *live {
|
||||
println!("Press l to disable live mode");
|
||||
} else {
|
||||
println!("Press l to enable live mode");
|
||||
}
|
||||
}
|
||||
OsKey::Char('e') => {
|
||||
if let Some(mode_i) = modes.iter().position(|x| x.0.id == selected) {
|
||||
if let Some((mode, _text)) = modes.get(mode_i) {
|
||||
*edit_env = true;
|
||||
mode_opt = Some(*mode);
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
os.set_text_position(0, off_y + rows);
|
||||
os.set_text_highlight(false);
|
||||
println!();
|
||||
|
||||
mode_opt
|
||||
}
|
||||
|
||||
fn redoxfs<O: Os>(os: &O) -> (redoxfs::FileSystem<O::D>, Option<&'static [u8]>) {
|
||||
let attempts = 10;
|
||||
for attempt in 0..=attempts {
|
||||
let mut password_opt = None;
|
||||
if attempt > 0 {
|
||||
print!("\rRedoxFS password ({}/{}): ", attempt, attempts);
|
||||
|
||||
let mut password = String::new();
|
||||
|
||||
loop {
|
||||
match os.get_key() {
|
||||
OsKey::Backspace | OsKey::Delete => {
|
||||
if !password.is_empty() {
|
||||
print!("\x08 \x08");
|
||||
password.pop();
|
||||
}
|
||||
}
|
||||
OsKey::Char(c) => {
|
||||
print!("*");
|
||||
password.push(c)
|
||||
}
|
||||
OsKey::Enter => break,
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
|
||||
// Erase password information
|
||||
while os.get_text_position().0 > 0 {
|
||||
print!("\x08 \x08");
|
||||
}
|
||||
|
||||
if !password.is_empty() {
|
||||
password_opt = Some(password);
|
||||
}
|
||||
}
|
||||
match os.filesystem(password_opt.as_ref().map(|x| x.as_bytes())) {
|
||||
Ok(fs) => {
|
||||
return (
|
||||
fs,
|
||||
password_opt.map(|password| {
|
||||
// Copy password to page aligned memory
|
||||
let password_size = password.len();
|
||||
let password_base = os.alloc_zeroed_page_aligned(password_size);
|
||||
|
||||
area_add(OsMemoryEntry {
|
||||
base: password_base as u64,
|
||||
size: password_size as u64,
|
||||
kind: OsMemoryKind::Reserved,
|
||||
});
|
||||
|
||||
unsafe {
|
||||
ptr::copy(password.as_ptr(), password_base, password_size);
|
||||
slice::from_raw_parts(password_base, password_size)
|
||||
}
|
||||
}),
|
||||
);
|
||||
}
|
||||
Err(err) => match err.errno {
|
||||
// Incorrect password, try again
|
||||
syscall::ENOKEY => (),
|
||||
_ => {
|
||||
panic!("Failed to open RedoxFS: {}", err);
|
||||
}
|
||||
},
|
||||
}
|
||||
}
|
||||
panic!("RedoxFS out of unlock attempts");
|
||||
}
|
||||
|
||||
#[derive(PartialEq)]
|
||||
enum Filetype {
|
||||
Elf,
|
||||
Initfs,
|
||||
}
|
||||
fn load_to_memory<O: Os>(
|
||||
os: &O,
|
||||
fs: &mut redoxfs::FileSystem<O::D>,
|
||||
path: &str,
|
||||
filetype: Filetype,
|
||||
) -> &'static mut [u8] {
|
||||
fs.tx(|tx| {
|
||||
let mut node = None;
|
||||
for component in path.split('/') {
|
||||
node = Some(
|
||||
tx.find_node(
|
||||
node.map_or(redoxfs::TreePtr::root(), |node: TreeData<Node>| node.ptr()),
|
||||
component,
|
||||
)
|
||||
.unwrap_or_else(|err| panic!("Failed to find {component}: {err}")),
|
||||
);
|
||||
}
|
||||
let node = node.unwrap();
|
||||
|
||||
let size = node.data().size();
|
||||
|
||||
print!("{}: 0/{} MiB", path, size / MIBI as u64);
|
||||
|
||||
let ptr = os.alloc_zeroed_page_aligned(size as usize);
|
||||
if ptr.is_null() {
|
||||
panic!("Failed to allocate memory for {}", path);
|
||||
}
|
||||
|
||||
let slice = unsafe { slice::from_raw_parts_mut(ptr, size as usize) };
|
||||
|
||||
let mut i = 0;
|
||||
for chunk in slice.chunks_mut(MIBI) {
|
||||
print!("\r{}: {}/{} MiB", path, i / MIBI as u64, size / MIBI as u64);
|
||||
i += tx
|
||||
.read_node_inner(&node, i, chunk)
|
||||
.unwrap_or_else(|err| panic!("Failed to read `{}` file: {}", path, err))
|
||||
as u64;
|
||||
}
|
||||
println!("\r{}: {}/{} MiB", path, i / MIBI as u64, size / MIBI as u64);
|
||||
|
||||
if filetype == Filetype::Elf {
|
||||
let magic = &slice[..4];
|
||||
if magic != b"\x7FELF" {
|
||||
panic!("{} has invalid magic number {:#X?}", path, magic);
|
||||
}
|
||||
} else if filetype == Filetype::Initfs {
|
||||
let magic = &slice[..8];
|
||||
if magic != b"RedoxFtw" {
|
||||
panic!("{} has invalid magic number {:#X?}", path, magic);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(slice)
|
||||
})
|
||||
.unwrap_or_else(|err| {
|
||||
panic!(
|
||||
"RedoxFS transaction failed while loading `{}`: {}",
|
||||
path, err
|
||||
)
|
||||
})
|
||||
}
|
||||
|
||||
fn elf_entry(data: &[u8]) -> (u64, bool) {
|
||||
match (data[4], data[5]) {
|
||||
// 32-bit, little endian
|
||||
(1, 1) => (
|
||||
u32::from_le_bytes(
|
||||
<[u8; 4]>::try_from(&data[0x18..0x18 + 4]).expect("conversion cannot fail"),
|
||||
) as u64,
|
||||
false,
|
||||
),
|
||||
// 32-bit, big endian
|
||||
(1, 2) => (
|
||||
u32::from_be_bytes(
|
||||
<[u8; 4]>::try_from(&data[0x18..0x18 + 4]).expect("conversion cannot fail"),
|
||||
) as u64,
|
||||
false,
|
||||
),
|
||||
// 64-bit, little endian
|
||||
(2, 1) => (
|
||||
u64::from_le_bytes(
|
||||
<[u8; 8]>::try_from(&data[0x18..0x18 + 8]).expect("conversion cannot fail"),
|
||||
),
|
||||
true,
|
||||
),
|
||||
// 64-bit, big endian
|
||||
(2, 2) => (
|
||||
u64::from_be_bytes(
|
||||
<[u8; 8]>::try_from(&data[0x18..0x18 + 8]).expect("conversion cannot fail"),
|
||||
),
|
||||
true,
|
||||
),
|
||||
(ei_class, ei_data) => {
|
||||
panic!("Unsupported ELF EI_CLASS {} EI_DATA {}", ei_class, ei_data);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn main(os: &impl Os) -> (usize, u64, KernelArgs) {
|
||||
println!(
|
||||
"Redox OS Bootloader {} on {}",
|
||||
env!("CARGO_PKG_VERSION"),
|
||||
os.name()
|
||||
);
|
||||
|
||||
let hwdesc = os.hwdesc();
|
||||
println!("Hardware descriptor: {:x?}", hwdesc);
|
||||
let (acpi_rsdp_base, acpi_rsdp_size) = match hwdesc {
|
||||
OsHwDesc::Acpi(base, size) => (base, size),
|
||||
OsHwDesc::DeviceTree(base, size) => (base, size),
|
||||
OsHwDesc::NotFound => (0, 0),
|
||||
};
|
||||
|
||||
let (mut fs, password_opt) = redoxfs(os);
|
||||
|
||||
print!("RedoxFS ");
|
||||
for i in 0..fs.header.uuid().len() {
|
||||
if i == 4 || i == 6 || i == 8 || i == 10 {
|
||||
print!("-");
|
||||
}
|
||||
|
||||
print!("{:>02x}", fs.header.uuid()[i]);
|
||||
}
|
||||
println!(": {} MiB", fs.header.size() / MIBI as u64);
|
||||
println!();
|
||||
|
||||
let mut mode_opts = Vec::new();
|
||||
let mut live = cfg!(feature = "live");
|
||||
let mut edit_env = false;
|
||||
for output_i in 0..os.video_outputs() {
|
||||
if output_i > 0 {
|
||||
os.clear_text();
|
||||
}
|
||||
mode_opts.push(select_mode(os, output_i, &mut live, &mut edit_env));
|
||||
}
|
||||
|
||||
let stack_size = 128 * KIBI;
|
||||
let stack_base = os.alloc_zeroed_page_aligned(stack_size);
|
||||
if stack_base.is_null() {
|
||||
panic!("Failed to allocate memory for stack");
|
||||
}
|
||||
|
||||
let live_opt = if live {
|
||||
let size = fs.header.size();
|
||||
|
||||
print!("live: 0/{} MiB", size / MIBI as u64);
|
||||
|
||||
let ptr = os.alloc_zeroed_page_aligned(size as usize);
|
||||
if ptr.is_null() {
|
||||
panic!("Failed to allocate memory for live");
|
||||
}
|
||||
|
||||
let live = unsafe { slice::from_raw_parts_mut(ptr, size as usize) };
|
||||
|
||||
let mut i = 0;
|
||||
for chunk in live.chunks_mut(MIBI) {
|
||||
print!("\rlive: {}/{} MiB", i / MIBI as u64, size / MIBI as u64);
|
||||
i += unsafe {
|
||||
fs.disk
|
||||
.read_at(fs.block + i / redoxfs::BLOCK_SIZE, chunk)
|
||||
.expect("Failed to read live disk") as u64
|
||||
};
|
||||
}
|
||||
println!("\rlive: {}/{} MiB", i / MIBI as u64, size / MIBI as u64);
|
||||
|
||||
println!("Switching to live disk");
|
||||
unsafe {
|
||||
LIVE_OPT = Some((fs.block, slice::from_raw_parts_mut(ptr, size as usize)));
|
||||
}
|
||||
|
||||
area_add(OsMemoryEntry {
|
||||
base: live.as_ptr() as u64,
|
||||
size: live.len() as u64,
|
||||
kind: OsMemoryKind::Reserved,
|
||||
});
|
||||
|
||||
Some(live)
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
let (kernel, kernel_entry) = {
|
||||
let kernel = load_to_memory(os, &mut fs, "usr/lib/boot/kernel", Filetype::Elf);
|
||||
let (kernel_entry, kernel_64bit) = elf_entry(kernel);
|
||||
unsafe {
|
||||
KERNEL_64BIT = kernel_64bit;
|
||||
}
|
||||
(kernel, kernel_entry)
|
||||
};
|
||||
|
||||
let (bootstrap_size, bootstrap_base) = {
|
||||
let initfs_slice = load_to_memory(os, &mut fs, "usr/lib/boot/initfs", Filetype::Initfs);
|
||||
|
||||
let memory = unsafe {
|
||||
let total_size = initfs_slice.len().next_multiple_of(4096);
|
||||
let ptr = os.alloc_zeroed_page_aligned(total_size);
|
||||
assert!(!ptr.is_null(), "failed to allocate bootstrap+initfs memory");
|
||||
core::slice::from_raw_parts_mut(ptr, total_size)
|
||||
};
|
||||
memory[..initfs_slice.len()].copy_from_slice(initfs_slice);
|
||||
|
||||
(memory.len() as u64, memory.as_mut_ptr() as u64)
|
||||
};
|
||||
|
||||
let page_phys = unsafe { paging_create(os, kernel.as_ptr() as u64, kernel.len() as u64) }
|
||||
.expect("Failed to set up paging");
|
||||
|
||||
let max_env_size = 64 * KIBI;
|
||||
let mut env_size = max_env_size;
|
||||
let env_base = os.alloc_zeroed_page_aligned(env_size);
|
||||
if env_base.is_null() {
|
||||
panic!("Failed to allocate memory for stack");
|
||||
}
|
||||
|
||||
{
|
||||
let mut w = SliceWriter {
|
||||
slice: unsafe { slice::from_raw_parts_mut(env_base, max_env_size) },
|
||||
i: 0,
|
||||
};
|
||||
|
||||
match hwdesc {
|
||||
OsHwDesc::Acpi(addr, size) => {
|
||||
writeln!(w, "RSDP_ADDR={addr:016x}").unwrap();
|
||||
writeln!(w, "RSDP_SIZE={size:016x}").unwrap();
|
||||
}
|
||||
OsHwDesc::DeviceTree(addr, size) => {
|
||||
writeln!(w, "DTB_ADDR={addr:016x}").unwrap();
|
||||
writeln!(w, "DTB_SIZE={size:016x}").unwrap();
|
||||
}
|
||||
OsHwDesc::NotFound => {}
|
||||
}
|
||||
|
||||
if let Some(live) = live_opt {
|
||||
writeln!(w, "DISK_LIVE_ADDR={:016x}", live.as_ptr() as usize).unwrap();
|
||||
writeln!(w, "DISK_LIVE_SIZE={:016x}", live.len()).unwrap();
|
||||
writeln!(w, "REDOXFS_BLOCK={:016x}", 0).unwrap();
|
||||
} else {
|
||||
writeln!(w, "REDOXFS_BLOCK={:016x}", fs.block).unwrap();
|
||||
}
|
||||
write!(w, "REDOXFS_UUID=").unwrap();
|
||||
for i in 0..fs.header.uuid().len() {
|
||||
if i == 4 || i == 6 || i == 8 || i == 10 {
|
||||
write!(w, "-").unwrap();
|
||||
}
|
||||
|
||||
write!(w, "{:>02x}", fs.header.uuid()[i]).unwrap();
|
||||
}
|
||||
writeln!(w).unwrap();
|
||||
if let Some(password) = password_opt {
|
||||
writeln!(
|
||||
w,
|
||||
"REDOXFS_PASSWORD_ADDR={:016x}",
|
||||
password.as_ptr() as usize
|
||||
)
|
||||
.unwrap();
|
||||
writeln!(w, "REDOXFS_PASSWORD_SIZE={:016x}", password.len()).unwrap();
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
{
|
||||
let boot_hartid = os::efi_get_boot_hartid()
|
||||
.expect("Could not retrieve boot hart id from EFI implementation!");
|
||||
writeln!(w, "BOOT_HART_ID={:016x}", boot_hartid).unwrap();
|
||||
}
|
||||
if edit_env {
|
||||
editor::edit_env(os, env_base, &mut w.i, max_env_size);
|
||||
}
|
||||
|
||||
for output_i in 0..os.video_outputs() {
|
||||
if let Some(mut mode) = mode_opts[output_i] {
|
||||
// Set mode to get updated values
|
||||
os.set_video_mode(output_i, &mut mode);
|
||||
|
||||
if output_i == 0 {
|
||||
let virt = unsafe {
|
||||
paging_framebuffer(
|
||||
os,
|
||||
page_phys,
|
||||
mode.base,
|
||||
(mode.stride * mode.height * 4) as u64,
|
||||
)
|
||||
}
|
||||
.expect("Failed to map framebuffer");
|
||||
|
||||
writeln!(w, "FRAMEBUFFER_ADDR={:016x}", mode.base).unwrap();
|
||||
writeln!(w, "FRAMEBUFFER_VIRT={virt:016x}").unwrap();
|
||||
writeln!(w, "FRAMEBUFFER_WIDTH={:016x}", mode.width).unwrap();
|
||||
writeln!(w, "FRAMEBUFFER_HEIGHT={:016x}", mode.height).unwrap();
|
||||
writeln!(w, "FRAMEBUFFER_STRIDE={:016x}", mode.stride).unwrap();
|
||||
} else {
|
||||
writeln!(
|
||||
w,
|
||||
"FRAMEBUFFER{}={:#x},{},{},{}",
|
||||
output_i, mode.base, mode.width, mode.height, mode.stride,
|
||||
)
|
||||
.unwrap();
|
||||
}
|
||||
}
|
||||
}
|
||||
env_size = w.i;
|
||||
}
|
||||
|
||||
#[allow(static_mut_refs)]
|
||||
(
|
||||
page_phys,
|
||||
kernel_entry,
|
||||
KernelArgs {
|
||||
kernel_base: kernel.as_ptr() as u64,
|
||||
kernel_size: kernel.len() as u64,
|
||||
stack_base: stack_base as u64,
|
||||
stack_size: stack_size as u64,
|
||||
env_base: env_base as u64,
|
||||
env_size: env_size as u64,
|
||||
acpi_rsdp_base,
|
||||
acpi_rsdp_size,
|
||||
areas_base: unsafe { AREAS.as_ptr() as u64 },
|
||||
areas_size: unsafe { (AREAS.len() * mem::size_of::<OsMemoryEntry>()) as u64 },
|
||||
bootstrap_base,
|
||||
bootstrap_size,
|
||||
},
|
||||
)
|
||||
}
|
||||
@@ -0,0 +1,177 @@
|
||||
use core::{mem, ptr};
|
||||
use redoxfs::{BLOCK_SIZE, Disk};
|
||||
use syscall::error::{EIO, Error, Result};
|
||||
|
||||
use super::{DISK_ADDRESS_PACKET_ADDR, DISK_BIOS_ADDR, ThunkData};
|
||||
|
||||
const SECTOR_SIZE: u64 = 512;
|
||||
const BLOCKS_PER_SECTOR: u64 = BLOCK_SIZE / SECTOR_SIZE;
|
||||
// 128 sectors is the amount allocated for DISK_BIOS_ADDR
|
||||
// 127 sectors is the maximum for many BIOSes
|
||||
const MAX_SECTORS: u64 = 127;
|
||||
const MAX_BLOCKS: u64 = MAX_SECTORS * SECTOR_SIZE / BLOCK_SIZE;
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Clone, Copy)]
|
||||
#[repr(C, packed)]
|
||||
pub struct DiskAddressPacket {
|
||||
size: u8,
|
||||
reserved: u8,
|
||||
sectors: u16,
|
||||
buffer: u16,
|
||||
segment: u16,
|
||||
address: u64,
|
||||
}
|
||||
|
||||
impl DiskAddressPacket {
|
||||
pub fn from_block(block: u64, count: u64) -> DiskAddressPacket {
|
||||
let address = block * BLOCKS_PER_SECTOR;
|
||||
let sectors = count * BLOCKS_PER_SECTOR;
|
||||
assert!(sectors <= MAX_SECTORS);
|
||||
DiskAddressPacket {
|
||||
size: mem::size_of::<DiskAddressPacket>() as u8,
|
||||
reserved: 0,
|
||||
sectors: sectors as u16,
|
||||
buffer: (DISK_BIOS_ADDR & 0xF) as u16,
|
||||
segment: (DISK_BIOS_ADDR >> 4) as u16,
|
||||
address,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub struct DiskBios {
|
||||
boot_disk: u8,
|
||||
thunk13: extern "C" fn(),
|
||||
chs_opt: Option<(u32, u32, u32)>,
|
||||
}
|
||||
|
||||
impl DiskBios {
|
||||
pub fn new(boot_disk: u8, thunk13: extern "C" fn()) -> Self {
|
||||
let chs_opt = unsafe {
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4100;
|
||||
data.ebx = 0x55AA;
|
||||
data.edx = boot_disk as u32;
|
||||
|
||||
data.with(thunk13);
|
||||
|
||||
if (data.ebx & 0xFFFF) == 0xAA55 {
|
||||
// Extensions are installed, do not use CHS
|
||||
None
|
||||
} else {
|
||||
// Extensions are not installed, get CHS geometry
|
||||
data = ThunkData::new();
|
||||
data.eax = 0x0800;
|
||||
data.edx = boot_disk as u32;
|
||||
data.edi = 0;
|
||||
|
||||
data.with(thunk13);
|
||||
|
||||
//TODO: return result on error
|
||||
let ah = ({ data.eax } >> 8) & 0xFF;
|
||||
assert_eq!(ah, 0);
|
||||
|
||||
let c = (data.ecx >> 8) & 0xFF | ((data.ecx >> 6) & 0x3) << 8;
|
||||
let h = ((data.edx >> 8) & 0xFF) + 1;
|
||||
let s = data.ecx & 0x3F;
|
||||
|
||||
Some((c, h, s))
|
||||
}
|
||||
};
|
||||
|
||||
Self {
|
||||
boot_disk,
|
||||
thunk13,
|
||||
chs_opt,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Disk for DiskBios {
|
||||
unsafe fn read_at(&mut self, block: u64, buffer: &mut [u8]) -> Result<usize> {
|
||||
unsafe {
|
||||
// Optimization for live disks
|
||||
if let Some(live) = crate::LIVE_OPT {
|
||||
if block >= live.0 {
|
||||
let start = ((block - live.0) * BLOCK_SIZE) as usize;
|
||||
let end = start + buffer.len();
|
||||
if end <= live.1.len() {
|
||||
buffer.copy_from_slice(&live.1[start..end]);
|
||||
return Ok(buffer.len());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (i, chunk) in buffer
|
||||
.chunks_mut((MAX_BLOCKS * BLOCK_SIZE) as usize)
|
||||
.enumerate()
|
||||
{
|
||||
let dap = DiskAddressPacket::from_block(
|
||||
block + i as u64 * MAX_BLOCKS,
|
||||
chunk.len() as u64 / BLOCK_SIZE,
|
||||
);
|
||||
|
||||
if let Some((_, h_max, s_max)) = self.chs_opt {
|
||||
let s = (dap.address % s_max as u64) + 1;
|
||||
assert!(s <= 63, "invalid sector {s}");
|
||||
|
||||
let tmp = dap.address / s_max as u64;
|
||||
let h = tmp % h_max as u64;
|
||||
assert!(h <= 255, "invalid head {h}");
|
||||
|
||||
let c = tmp / h_max as u64;
|
||||
assert!(c <= 1023, "invalid cylinder {c}");
|
||||
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x0200 | (dap.sectors as u32);
|
||||
data.ebx = dap.buffer as u32;
|
||||
data.ecx =
|
||||
(s as u32) | (((c as u32) & 0xFF) << 8) | ((((c as u32) >> 8) & 0x3) << 6);
|
||||
data.edx = (self.boot_disk as u32) | ((h as u32) << 8);
|
||||
data.es = dap.segment;
|
||||
|
||||
data.with(self.thunk13);
|
||||
|
||||
//TODO: return result on error
|
||||
let ah = ({ data.eax } >> 8) & 0xFF;
|
||||
assert_eq!(ah, 0);
|
||||
} else {
|
||||
ptr::write(DISK_ADDRESS_PACKET_ADDR as *mut DiskAddressPacket, dap);
|
||||
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4200;
|
||||
data.edx = self.boot_disk as u32;
|
||||
data.esi = DISK_ADDRESS_PACKET_ADDR as u32;
|
||||
|
||||
data.with(self.thunk13);
|
||||
|
||||
//TODO: return result on error
|
||||
let ah = ({ data.eax } >> 8) & 0xFF;
|
||||
assert_eq!(ah, 0);
|
||||
|
||||
//TODO: check blocks transferred
|
||||
// dap = ptr::read(DISK_ADDRESS_PACKET_ADDR as *mut DiskAddressPacket);
|
||||
}
|
||||
|
||||
ptr::copy(DISK_BIOS_ADDR as *const u8, chunk.as_mut_ptr(), chunk.len());
|
||||
}
|
||||
|
||||
Ok(buffer.len())
|
||||
}
|
||||
}
|
||||
|
||||
unsafe fn write_at(&mut self, block: u64, buffer: &[u8]) -> Result<usize> {
|
||||
log::error!(
|
||||
"DiskBios::write_at(0x{:X}, 0x{:X}:0x{:X}) not allowed",
|
||||
block,
|
||||
buffer.as_ptr() as usize,
|
||||
buffer.len()
|
||||
);
|
||||
Err(Error::new(EIO))
|
||||
}
|
||||
|
||||
fn size(&mut self) -> Result<u64> {
|
||||
log::error!("DiskBios::size not implemented");
|
||||
Err(Error::new(EIO))
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,20 @@
|
||||
/// Print to console
|
||||
#[macro_export]
|
||||
macro_rules! print {
|
||||
($($arg:tt)*) => ({
|
||||
use core::fmt::Write;
|
||||
#[cfg(feature = "serial_debug")]
|
||||
{
|
||||
let _ = write!($crate::os::serial::COM1.lock(), $($arg)*);
|
||||
}
|
||||
let _ = write!($crate::os::VGA.lock(), $($arg)*);
|
||||
});
|
||||
}
|
||||
|
||||
/// Print with new line to console
|
||||
#[macro_export]
|
||||
macro_rules! println {
|
||||
() => (print!("\n"));
|
||||
($fmt:expr_2021) => (print!(concat!($fmt, "\n")));
|
||||
($fmt:expr_2021, $($arg:tt)*) => (print!(concat!($fmt, "\n"), $($arg)*));
|
||||
}
|
||||
@@ -0,0 +1,84 @@
|
||||
use core::{cmp, mem, ptr};
|
||||
|
||||
use crate::area_add;
|
||||
use crate::os::{OsMemoryEntry, OsMemoryKind};
|
||||
|
||||
use super::{MEMORY_MAP_ADDR, thunk::ThunkData};
|
||||
|
||||
#[repr(C, packed)]
|
||||
struct MemoryMapEntry {
|
||||
pub base: u64,
|
||||
pub size: u64,
|
||||
pub kind: u32,
|
||||
}
|
||||
|
||||
pub struct MemoryMapIter {
|
||||
thunk15: extern "C" fn(),
|
||||
data: ThunkData,
|
||||
first: bool,
|
||||
}
|
||||
|
||||
impl MemoryMapIter {
|
||||
pub fn new(thunk15: extern "C" fn()) -> Self {
|
||||
Self {
|
||||
thunk15,
|
||||
data: ThunkData::new(),
|
||||
first: true,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Iterator for MemoryMapIter {
|
||||
type Item = OsMemoryEntry;
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
if self.first {
|
||||
self.first = false;
|
||||
} else if self.data.ebx == 0 {
|
||||
return None;
|
||||
}
|
||||
|
||||
self.data.eax = 0xE820;
|
||||
self.data.ecx = mem::size_of::<MemoryMapEntry>() as u32;
|
||||
self.data.edx = 0x534D4150;
|
||||
self.data.edi = MEMORY_MAP_ADDR as u32;
|
||||
|
||||
unsafe {
|
||||
self.data.with(self.thunk15);
|
||||
}
|
||||
|
||||
//TODO: return error?
|
||||
assert_eq!({ self.data.eax }, 0x534D4150);
|
||||
assert_eq!({ self.data.ecx }, mem::size_of::<MemoryMapEntry>() as u32);
|
||||
|
||||
let entry = unsafe { ptr::read(MEMORY_MAP_ADDR as *const MemoryMapEntry) };
|
||||
Some(Self::Item {
|
||||
base: entry.base,
|
||||
size: entry.size,
|
||||
kind: match entry.kind {
|
||||
0 => OsMemoryKind::Null,
|
||||
1 => OsMemoryKind::Free,
|
||||
3 => OsMemoryKind::Reclaim,
|
||||
_ => OsMemoryKind::Reserved,
|
||||
},
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn memory_map(thunk15: extern "C" fn()) -> Option<(usize, usize)> {
|
||||
let mut heap_limits = None;
|
||||
for entry in MemoryMapIter::new(thunk15) {
|
||||
let heap_start = 1024 * 1024;
|
||||
if { entry.kind } == OsMemoryKind::Free
|
||||
&& entry.base <= heap_start as u64
|
||||
&& (entry.base + entry.size) >= heap_start as u64
|
||||
{
|
||||
let heap_end = cmp::min(entry.base + entry.size, usize::MAX as u64) as usize;
|
||||
if heap_end >= heap_start {
|
||||
heap_limits = Some((heap_start, heap_end - heap_start));
|
||||
}
|
||||
}
|
||||
|
||||
area_add(entry);
|
||||
}
|
||||
heap_limits
|
||||
}
|
||||
@@ -0,0 +1,318 @@
|
||||
use alloc::alloc::{Layout, alloc_zeroed};
|
||||
use core::{convert::TryFrom, mem, ptr, slice};
|
||||
use linked_list_allocator::LockedHeap;
|
||||
use spin::Mutex;
|
||||
|
||||
use crate::KernelArgs;
|
||||
use crate::logger::LOGGER;
|
||||
use crate::os::{Os, OsHwDesc, OsKey, OsVideoMode};
|
||||
|
||||
use self::disk::DiskBios;
|
||||
use self::memory_map::memory_map;
|
||||
use self::thunk::ThunkData;
|
||||
use self::vbe::VideoModeIter;
|
||||
use self::vga::{Vga, VgaTextColor};
|
||||
|
||||
#[macro_use]
|
||||
mod macros;
|
||||
|
||||
mod disk;
|
||||
mod memory_map;
|
||||
mod panic;
|
||||
pub(crate) mod serial;
|
||||
mod thunk;
|
||||
mod vbe;
|
||||
mod vga;
|
||||
|
||||
// Real mode memory allocation, for use with thunk
|
||||
// 0x500 to 0x7BFF is free
|
||||
const DISK_BIOS_ADDR: usize = 0x70000; // 64 KiB at 448 KiB, ends at 512 KiB
|
||||
const VBE_CARD_INFO_ADDR: usize = 0x1000; // 512 bytes, ends at 0x11FF
|
||||
const VBE_MODE_INFO_ADDR: usize = 0x1200; // 256 bytes, ends at 0x12FF
|
||||
const VBE_EDID_ADDR: usize = 0x1300; // 128 bytes, ends at 0x137F
|
||||
const MEMORY_MAP_ADDR: usize = 0x1380; // 24 bytes, ends at 0x1397
|
||||
const DISK_ADDRESS_PACKET_ADDR: usize = 0x1398; // 16 bytes, ends at 0x13A7
|
||||
const THUNK_STACK_ADDR: usize = 0x7C00; // Grows downwards
|
||||
const VGA_ADDR: usize = 0xB8000;
|
||||
|
||||
#[global_allocator]
|
||||
static ALLOCATOR: LockedHeap = LockedHeap::empty();
|
||||
|
||||
pub(crate) static VGA: Mutex<Vga> = Mutex::new(unsafe { Vga::new(VGA_ADDR, 80, 25) });
|
||||
|
||||
pub struct OsBios {
|
||||
boot_disk: usize,
|
||||
thunk10: extern "C" fn(),
|
||||
thunk13: extern "C" fn(),
|
||||
thunk15: extern "C" fn(),
|
||||
thunk16: extern "C" fn(),
|
||||
}
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct Rsdp {
|
||||
signature: [u8; 8],
|
||||
checksum: u8,
|
||||
oemid: [u8; 6],
|
||||
revision: u8,
|
||||
rsdt_address: u32,
|
||||
}
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct Xsdp {
|
||||
rsdp: Rsdp,
|
||||
|
||||
length: u32,
|
||||
xsdt_address: u64,
|
||||
extended_checksum: u8,
|
||||
reserved: [u8; 3],
|
||||
}
|
||||
|
||||
unsafe fn search_rsdp(start: usize, end: usize) -> Option<(u64, u64)> {
|
||||
unsafe {
|
||||
// Align start up to 16 bytes
|
||||
let mut addr = start.div_ceil(16) * 16;
|
||||
// Search until reading the end of the Rsdp would be past the end of the memory area
|
||||
while addr + mem::size_of::<Rsdp>() <= end {
|
||||
let rsdp = ptr::read(addr as *const Rsdp);
|
||||
if &rsdp.signature == b"RSD PTR " {
|
||||
//TODO: check checksum?
|
||||
if rsdp.revision == 0 {
|
||||
return Some((addr as u64, mem::size_of::<Rsdp>() as u64));
|
||||
} else if rsdp.revision == 2 {
|
||||
let xsdp = ptr::read(addr as *const Xsdp);
|
||||
//TODO: check extended checksum?
|
||||
return Some((addr as u64, xsdp.length as u64));
|
||||
}
|
||||
}
|
||||
|
||||
// Rsdp is always aligned to 16 bytes
|
||||
addr += 16;
|
||||
}
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
impl Os for OsBios {
|
||||
type D = DiskBios;
|
||||
type V = VideoModeIter;
|
||||
|
||||
fn name(&self) -> &str {
|
||||
"x86/BIOS"
|
||||
}
|
||||
|
||||
fn alloc_zeroed_page_aligned(&self, size: usize) -> *mut u8 {
|
||||
assert!(size != 0);
|
||||
|
||||
let page_size = self.page_size();
|
||||
let pages = size.div_ceil(page_size);
|
||||
|
||||
let ptr =
|
||||
unsafe { alloc_zeroed(Layout::from_size_align(pages * page_size, page_size).unwrap()) };
|
||||
|
||||
assert!(!ptr.is_null());
|
||||
ptr
|
||||
}
|
||||
|
||||
fn page_size(&self) -> usize {
|
||||
4096
|
||||
}
|
||||
|
||||
fn filesystem(
|
||||
&self,
|
||||
password_opt: Option<&[u8]>,
|
||||
) -> syscall::Result<redoxfs::FileSystem<DiskBios>> {
|
||||
let disk = DiskBios::new(u8::try_from(self.boot_disk).unwrap(), self.thunk13);
|
||||
|
||||
//TODO: get block from partition table
|
||||
let block = 2 * crate::MIBI as u64 / redoxfs::BLOCK_SIZE;
|
||||
redoxfs::FileSystem::open(disk, password_opt, Some(block), false)
|
||||
}
|
||||
|
||||
fn hwdesc(&self) -> OsHwDesc {
|
||||
// See ACPI specification - Finding the RSDP on IA-PC Systems
|
||||
unsafe {
|
||||
let ebda_segment = ptr::read(0x40E as *const u16);
|
||||
let ebda_addr = (ebda_segment as usize) << 4;
|
||||
if let Some((addr, size)) =
|
||||
search_rsdp(ebda_addr, ebda_addr + 1024).or(search_rsdp(0xE0000, 0xFFFFF))
|
||||
{
|
||||
// Copy to a page
|
||||
let page_aligned = self.alloc_zeroed_page_aligned(size as usize);
|
||||
ptr::copy(addr as *const u8, page_aligned, size as usize);
|
||||
return OsHwDesc::Acpi(page_aligned as u64, size);
|
||||
}
|
||||
}
|
||||
OsHwDesc::NotFound
|
||||
}
|
||||
|
||||
fn video_outputs(&self) -> usize {
|
||||
//TODO: return 1 only if vbe supported?
|
||||
1
|
||||
}
|
||||
|
||||
fn video_modes(&self, _output_i: usize) -> VideoModeIter {
|
||||
VideoModeIter::new(self.thunk10)
|
||||
}
|
||||
|
||||
fn set_video_mode(&self, _output_i: usize, mode: &mut OsVideoMode) {
|
||||
// Set video mode
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4F02;
|
||||
data.ebx = mode.id;
|
||||
unsafe {
|
||||
data.with(self.thunk10);
|
||||
}
|
||||
//TODO: check result
|
||||
}
|
||||
|
||||
fn best_resolution(&self, _output_i: usize) -> Option<(u32, u32)> {
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4F15;
|
||||
data.ebx = 0x01;
|
||||
data.ecx = 0;
|
||||
data.edx = 0;
|
||||
data.edi = VBE_EDID_ADDR as u32;
|
||||
unsafe {
|
||||
data.with(self.thunk10);
|
||||
}
|
||||
|
||||
if data.eax == 0x4F {
|
||||
let edid = unsafe { slice::from_raw_parts(VBE_EDID_ADDR as *const u8, 128) };
|
||||
|
||||
Some((
|
||||
(edid[0x38] as u32) | (((edid[0x3A] as u32) & 0xF0) << 4),
|
||||
(edid[0x3B] as u32) | (((edid[0x3D] as u32) & 0xF0) << 4),
|
||||
))
|
||||
} else {
|
||||
log::warn!("Failed to get VBE EDID: 0x{:X}", { data.eax });
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
fn get_key(&self) -> OsKey {
|
||||
// Read keypress
|
||||
let mut data = ThunkData::new();
|
||||
unsafe {
|
||||
data.with(self.thunk16);
|
||||
}
|
||||
match (data.eax >> 8) as u8 {
|
||||
0x4B => OsKey::Left,
|
||||
0x4D => OsKey::Right,
|
||||
0x48 => OsKey::Up,
|
||||
0x50 => OsKey::Down,
|
||||
0x0E => OsKey::Backspace,
|
||||
0x53 => OsKey::Delete,
|
||||
0x1C => OsKey::Enter,
|
||||
_ => match data.eax as u8 {
|
||||
0 => OsKey::Other,
|
||||
b => OsKey::Char(b as char),
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
fn clear_text(&self) {
|
||||
let mut vga = VGA.lock();
|
||||
vga.clear();
|
||||
}
|
||||
|
||||
fn get_text_position(&self) -> (usize, usize) {
|
||||
let vga = VGA.lock();
|
||||
(vga.x, vga.y)
|
||||
}
|
||||
|
||||
fn set_text_position(&self, x: usize, y: usize) {
|
||||
//TODO: ensure this is inside bounds!
|
||||
let mut vga = VGA.lock();
|
||||
vga.x = x;
|
||||
vga.y = y;
|
||||
}
|
||||
|
||||
fn set_text_highlight(&self, highlight: bool) {
|
||||
let mut vga = VGA.lock();
|
||||
if highlight {
|
||||
vga.bg = VgaTextColor::Gray;
|
||||
vga.fg = VgaTextColor::Black;
|
||||
} else {
|
||||
vga.bg = VgaTextColor::Black;
|
||||
vga.fg = VgaTextColor::Gray;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[unsafe(no_mangle)]
|
||||
pub unsafe extern "C" fn start(
|
||||
kernel_entry: extern "C" fn(
|
||||
page_table: usize,
|
||||
stack: u64,
|
||||
func: u64,
|
||||
args: *const KernelArgs,
|
||||
long_mode: usize,
|
||||
) -> !,
|
||||
boot_disk: usize,
|
||||
thunk10: extern "C" fn(),
|
||||
thunk13: extern "C" fn(),
|
||||
thunk15: extern "C" fn(),
|
||||
thunk16: extern "C" fn(),
|
||||
) -> ! {
|
||||
unsafe {
|
||||
#[cfg(feature = "serial_debug")]
|
||||
{
|
||||
let mut com1 = serial::COM1.lock();
|
||||
com1.init();
|
||||
com1.write(b"SERIAL\n");
|
||||
}
|
||||
|
||||
{
|
||||
// Make sure we are in mode 3 (80x25 text mode)
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x03;
|
||||
data.with(thunk10);
|
||||
}
|
||||
|
||||
{
|
||||
// Disable cursor
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x0100;
|
||||
data.ecx = 0x3F00;
|
||||
data.with(thunk10);
|
||||
}
|
||||
|
||||
// Clear screen
|
||||
VGA.lock().clear();
|
||||
|
||||
// Set logger
|
||||
LOGGER.init();
|
||||
|
||||
let mut os = OsBios {
|
||||
boot_disk,
|
||||
thunk10,
|
||||
thunk13,
|
||||
thunk15,
|
||||
thunk16,
|
||||
};
|
||||
|
||||
let (heap_start, heap_size) = memory_map(os.thunk15).expect("No memory for heap");
|
||||
|
||||
ALLOCATOR.lock().init(heap_start as *mut u8, heap_size);
|
||||
|
||||
let (page_phys, func, args) = crate::main(&mut os);
|
||||
|
||||
kernel_entry(
|
||||
page_phys,
|
||||
args.stack_base
|
||||
+ args.stack_size
|
||||
+ if crate::KERNEL_64BIT {
|
||||
crate::arch::x64::PHYS_OFFSET
|
||||
} else {
|
||||
crate::arch::x32::PHYS_OFFSET as u64
|
||||
},
|
||||
func,
|
||||
&args,
|
||||
if crate::KERNEL_64BIT { 1 } else { 0 },
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,16 @@
|
||||
//! Intrinsics for panic handling
|
||||
|
||||
use core::alloc::Layout;
|
||||
use core::arch::asm;
|
||||
use core::panic::PanicInfo;
|
||||
|
||||
/// Required to handle panics
|
||||
#[panic_handler]
|
||||
pub fn rust_begin_unwind(info: &PanicInfo) -> ! {
|
||||
unsafe {
|
||||
println!("BOOTLOADER PANIC:\n{}", info);
|
||||
loop {
|
||||
asm!("hlt");
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,9 @@
|
||||
use spin::Mutex;
|
||||
use syscall::Pio;
|
||||
|
||||
use crate::serial_16550::SerialPort;
|
||||
|
||||
pub static COM1: Mutex<SerialPort<Pio<u8>>> = Mutex::new(SerialPort::<Pio<u8>>::new(0x3F8));
|
||||
pub static COM2: Mutex<SerialPort<Pio<u8>>> = Mutex::new(SerialPort::<Pio<u8>>::new(0x2F8));
|
||||
pub static COM3: Mutex<SerialPort<Pio<u8>>> = Mutex::new(SerialPort::<Pio<u8>>::new(0x3E8));
|
||||
pub static COM4: Mutex<SerialPort<Pio<u8>>> = Mutex::new(SerialPort::<Pio<u8>>::new(0x2E8));
|
||||
@@ -0,0 +1,52 @@
|
||||
use core::ptr;
|
||||
|
||||
use super::THUNK_STACK_ADDR;
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct ThunkData {
|
||||
pub es: u16,
|
||||
pub edi: u32,
|
||||
pub esi: u32,
|
||||
pub ebp: u32,
|
||||
pub ebx: u32,
|
||||
pub edx: u32,
|
||||
pub ecx: u32,
|
||||
pub eax: u32,
|
||||
}
|
||||
|
||||
impl ThunkData {
|
||||
pub fn new() -> Self {
|
||||
Self {
|
||||
es: 0,
|
||||
edi: 0,
|
||||
esi: 0,
|
||||
ebp: 0,
|
||||
ebx: 0,
|
||||
edx: 0,
|
||||
ecx: 0,
|
||||
eax: 0,
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn save(&self) {
|
||||
unsafe {
|
||||
ptr::write((THUNK_STACK_ADDR - 64) as *mut ThunkData, *self);
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn load(&mut self) {
|
||||
unsafe {
|
||||
*self = ptr::read((THUNK_STACK_ADDR - 64) as *const ThunkData);
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn with(&mut self, f: extern "C" fn()) {
|
||||
unsafe {
|
||||
self.save();
|
||||
f();
|
||||
self.load();
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,151 @@
|
||||
use core::ptr;
|
||||
use log::error;
|
||||
|
||||
use crate::os::OsVideoMode;
|
||||
|
||||
use super::{ThunkData, VBE_CARD_INFO_ADDR, VBE_MODE_INFO_ADDR};
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct VbeFarPtr {
|
||||
pub offset: u16,
|
||||
pub segment: u16,
|
||||
}
|
||||
|
||||
impl VbeFarPtr {
|
||||
pub unsafe fn as_ptr<T>(&self) -> *const T {
|
||||
(((self.segment as usize) << 4) + (self.offset as usize)) as *const T
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct VbeCardInfo {
|
||||
pub signature: [u8; 4],
|
||||
pub version: u16,
|
||||
pub oemstring: VbeFarPtr,
|
||||
pub capabilities: [u8; 4],
|
||||
pub videomodeptr: VbeFarPtr,
|
||||
pub totalmemory: u16,
|
||||
pub oemsoftwarerev: u16,
|
||||
pub oemvendornameptr: VbeFarPtr,
|
||||
pub oemproductnameptr: VbeFarPtr,
|
||||
pub oemproductrevptr: VbeFarPtr,
|
||||
pub reserved: [u8; 222],
|
||||
pub oemdata: [u8; 256],
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
#[repr(C, packed)]
|
||||
pub struct VbeModeInfo {
|
||||
pub attributes: u16,
|
||||
pub win_a: u8,
|
||||
pub win_b: u8,
|
||||
pub granularity: u16,
|
||||
pub winsize: u16,
|
||||
pub segment_a: u16,
|
||||
pub segment_b: u16,
|
||||
pub winfuncptr: u32,
|
||||
pub bytesperscanline: u16,
|
||||
pub xresolution: u16,
|
||||
pub yresolution: u16,
|
||||
pub xcharsize: u8,
|
||||
pub ycharsize: u8,
|
||||
pub numberofplanes: u8,
|
||||
pub bitsperpixel: u8,
|
||||
pub numberofbanks: u8,
|
||||
pub memorymodel: u8,
|
||||
pub banksize: u8,
|
||||
pub numberofimagepages: u8,
|
||||
pub unused: u8,
|
||||
pub redmasksize: u8,
|
||||
pub redfieldposition: u8,
|
||||
pub greenmasksize: u8,
|
||||
pub greenfieldposition: u8,
|
||||
pub bluemasksize: u8,
|
||||
pub bluefieldposition: u8,
|
||||
pub rsvdmasksize: u8,
|
||||
pub rsvdfieldposition: u8,
|
||||
pub directcolormodeinfo: u8,
|
||||
pub physbaseptr: u32,
|
||||
pub offscreenmemoryoffset: u32,
|
||||
pub offscreenmemsize: u16,
|
||||
pub reserved: [u8; 206],
|
||||
}
|
||||
|
||||
pub struct VideoModeIter {
|
||||
thunk10: extern "C" fn(),
|
||||
mode_ptr: *const u16,
|
||||
}
|
||||
|
||||
impl VideoModeIter {
|
||||
pub fn new(thunk10: extern "C" fn()) -> Self {
|
||||
// Get card info
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4F00;
|
||||
data.edi = VBE_CARD_INFO_ADDR as u32;
|
||||
unsafe {
|
||||
data.with(thunk10);
|
||||
}
|
||||
let mode_ptr = if data.eax == 0x004F {
|
||||
let card_info = unsafe { ptr::read(VBE_CARD_INFO_ADDR as *const VbeCardInfo) };
|
||||
unsafe { card_info.videomodeptr.as_ptr::<u16>() }
|
||||
} else {
|
||||
error!("Failed to read VBE card info: 0x{:04X}", { data.eax });
|
||||
ptr::null()
|
||||
};
|
||||
Self { thunk10, mode_ptr }
|
||||
}
|
||||
}
|
||||
|
||||
impl Iterator for VideoModeIter {
|
||||
type Item = OsVideoMode;
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
if self.mode_ptr.is_null() {
|
||||
return None;
|
||||
}
|
||||
|
||||
loop {
|
||||
// Set bit 14 to get linear frame buffer
|
||||
let mode = unsafe { *self.mode_ptr } | (1 << 14);
|
||||
if mode == 0xFFFF {
|
||||
return None;
|
||||
}
|
||||
self.mode_ptr = unsafe { self.mode_ptr.add(1) };
|
||||
|
||||
// Get mode info
|
||||
let mut data = ThunkData::new();
|
||||
data.eax = 0x4F01;
|
||||
data.ecx = mode as u32;
|
||||
data.edi = VBE_MODE_INFO_ADDR as u32;
|
||||
unsafe {
|
||||
data.with(self.thunk10);
|
||||
}
|
||||
if data.eax == 0x004F {
|
||||
let mode_info = unsafe { ptr::read(VBE_MODE_INFO_ADDR as *const VbeModeInfo) };
|
||||
|
||||
// We only support 32-bits per pixel modes
|
||||
if mode_info.bitsperpixel != 32 {
|
||||
continue;
|
||||
}
|
||||
|
||||
let width = mode_info.xresolution as u32;
|
||||
let height = mode_info.yresolution as u32;
|
||||
//TODO: support stride that is not a multiple of 4
|
||||
let stride = mode_info.bytesperscanline as u32 / 4;
|
||||
|
||||
return Some(OsVideoMode {
|
||||
id: mode as u32,
|
||||
width,
|
||||
height,
|
||||
stride,
|
||||
base: mode_info.physbaseptr as u64,
|
||||
});
|
||||
} else {
|
||||
error!("Failed to read VBE mode 0x{:04X} info: 0x{:04X}", mode, {
|
||||
data.eax
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,121 @@
|
||||
use core::{fmt, slice};
|
||||
|
||||
#[derive(Clone, Copy)]
|
||||
#[repr(C, packed)]
|
||||
pub struct VgaTextBlock {
|
||||
pub char: u8,
|
||||
pub color: u8,
|
||||
}
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[derive(Clone, Copy)]
|
||||
#[repr(u8)]
|
||||
pub enum VgaTextColor {
|
||||
Black = 0,
|
||||
Blue = 1,
|
||||
Green = 2,
|
||||
Cyan = 3,
|
||||
Red = 4,
|
||||
Purple = 5,
|
||||
Brown = 6,
|
||||
Gray = 7,
|
||||
DarkGray = 8,
|
||||
LightBlue = 9,
|
||||
LightGreen = 10,
|
||||
LightCyan = 11,
|
||||
LightRed = 12,
|
||||
LightPurple = 13,
|
||||
Yellow = 14,
|
||||
White = 15,
|
||||
}
|
||||
|
||||
pub struct Vga {
|
||||
pub base: usize,
|
||||
pub width: usize,
|
||||
pub height: usize,
|
||||
pub x: usize,
|
||||
pub y: usize,
|
||||
pub bg: VgaTextColor,
|
||||
pub fg: VgaTextColor,
|
||||
}
|
||||
|
||||
impl Vga {
|
||||
pub const unsafe fn new(base: usize, width: usize, height: usize) -> Self {
|
||||
Self {
|
||||
base,
|
||||
width,
|
||||
height,
|
||||
x: 0,
|
||||
y: 0,
|
||||
bg: VgaTextColor::Black,
|
||||
fg: VgaTextColor::Gray,
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn blocks(&mut self) -> &'static mut [VgaTextBlock] {
|
||||
unsafe {
|
||||
slice::from_raw_parts_mut(self.base as *mut VgaTextBlock, self.width * self.height)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn clear(&mut self) {
|
||||
self.x = 0;
|
||||
self.y = 0;
|
||||
let blocks = unsafe { self.blocks() };
|
||||
for i in 0..blocks.len() {
|
||||
blocks[i] = VgaTextBlock {
|
||||
char: 0,
|
||||
color: ((self.bg as u8) << 4) | (self.fg as u8),
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Write for Vga {
|
||||
fn write_str(&mut self, s: &str) -> Result<(), fmt::Error> {
|
||||
let blocks = unsafe { self.blocks() };
|
||||
for c in s.chars() {
|
||||
if self.x >= self.width {
|
||||
self.x = 0;
|
||||
self.y += 1;
|
||||
}
|
||||
while self.y >= self.height {
|
||||
for y in 1..self.height {
|
||||
for x in 0..self.width {
|
||||
let i = y * self.width + x;
|
||||
let j = i - self.width;
|
||||
blocks[j] = blocks[i];
|
||||
if y + 1 == self.height {
|
||||
blocks[i].char = 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
self.y -= 1;
|
||||
}
|
||||
match c {
|
||||
'\x08' => {
|
||||
if self.x > 0 {
|
||||
self.x -= 1;
|
||||
}
|
||||
}
|
||||
'\r' => {
|
||||
self.x = 0;
|
||||
}
|
||||
'\n' => {
|
||||
self.x = 0;
|
||||
self.y += 1;
|
||||
}
|
||||
_ => {
|
||||
let i = self.y * self.width + self.x;
|
||||
if let Some(block) = blocks.get_mut(i) {
|
||||
block.char = c as u8;
|
||||
block.color = ((self.bg as u8) << 4) | (self.fg as u8);
|
||||
}
|
||||
self.x += 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,95 @@
|
||||
use redoxfs::Disk;
|
||||
|
||||
#[cfg(all(target_arch = "x86", target_os = "none"))]
|
||||
pub use self::bios::*;
|
||||
|
||||
#[cfg(all(target_arch = "x86", target_os = "none"))]
|
||||
#[macro_use]
|
||||
mod bios;
|
||||
|
||||
#[cfg(any(target_arch = "riscv64", target_os = "uefi"))]
|
||||
#[allow(unused_imports)]
|
||||
pub use self::uefi::*;
|
||||
|
||||
#[cfg(any(target_arch = "riscv64", target_os = "uefi"))]
|
||||
#[macro_use]
|
||||
mod uefi;
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub enum OsHwDesc {
|
||||
Acpi(u64, u64),
|
||||
DeviceTree(u64, u64),
|
||||
NotFound,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub enum OsKey {
|
||||
Left,
|
||||
Right,
|
||||
Up,
|
||||
Down,
|
||||
Backspace,
|
||||
Delete,
|
||||
Enter,
|
||||
Char(char),
|
||||
Other,
|
||||
}
|
||||
|
||||
// Keep synced with BootloaderMemoryKind in kernel
|
||||
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
|
||||
#[repr(u64)]
|
||||
pub enum OsMemoryKind {
|
||||
Null = 0,
|
||||
Free = 1,
|
||||
Reclaim = 2,
|
||||
Reserved = 3,
|
||||
}
|
||||
|
||||
// Keep synced with BootloaderMemoryEntry in kernel
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
#[repr(C, packed(8))]
|
||||
pub struct OsMemoryEntry {
|
||||
pub base: u64,
|
||||
pub size: u64,
|
||||
pub kind: OsMemoryKind,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct OsVideoMode {
|
||||
pub id: u32,
|
||||
pub width: u32,
|
||||
pub height: u32,
|
||||
pub stride: u32,
|
||||
pub base: u64,
|
||||
}
|
||||
|
||||
pub trait Os {
|
||||
type D: Disk;
|
||||
type V: Iterator<Item = OsVideoMode>;
|
||||
|
||||
fn name(&self) -> &str;
|
||||
|
||||
fn alloc_zeroed_page_aligned(&self, size: usize) -> *mut u8;
|
||||
|
||||
#[allow(dead_code)]
|
||||
fn page_size(&self) -> usize;
|
||||
|
||||
fn filesystem(
|
||||
&self,
|
||||
password_opt: Option<&[u8]>,
|
||||
) -> syscall::Result<redoxfs::FileSystem<Self::D>>;
|
||||
|
||||
fn hwdesc(&self) -> OsHwDesc;
|
||||
|
||||
fn video_outputs(&self) -> usize;
|
||||
fn video_modes(&self, output_i: usize) -> Self::V;
|
||||
fn set_video_mode(&self, output_i: usize, mode: &mut OsVideoMode);
|
||||
fn best_resolution(&self, output_i: usize) -> Option<(u32, u32)>;
|
||||
|
||||
fn get_key(&self) -> OsKey;
|
||||
|
||||
fn clear_text(&self);
|
||||
fn get_text_position(&self) -> (usize, usize);
|
||||
fn set_text_position(&self, x: usize, y: usize);
|
||||
fn set_text_highlight(&self, highlight: bool);
|
||||
}
|
||||
@@ -0,0 +1,110 @@
|
||||
use core::slice;
|
||||
use uefi::guid::{ACPI_20_TABLE_GUID, ACPI_TABLE_GUID};
|
||||
|
||||
use crate::Os;
|
||||
|
||||
struct Invalid;
|
||||
|
||||
fn validate_rsdp(address: usize, _v2: bool) -> core::result::Result<usize, Invalid> {
|
||||
#[repr(C, packed)]
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
struct Rsdp {
|
||||
signature: [u8; 8], // b"RSD PTR "
|
||||
chksum: u8,
|
||||
oem_id: [u8; 6],
|
||||
revision: u8,
|
||||
rsdt_addr: u32,
|
||||
// the following fields are only available for ACPI 2.0, and are reserved otherwise
|
||||
length: u32,
|
||||
xsdt_addr: u64,
|
||||
extended_chksum: u8,
|
||||
_rsvd: [u8; 3],
|
||||
}
|
||||
// paging is not enabled at this stage; we can just read the physical address here.
|
||||
let rsdp_bytes =
|
||||
unsafe { core::slice::from_raw_parts(address as *const u8, core::mem::size_of::<Rsdp>()) };
|
||||
let rsdp = unsafe {
|
||||
(rsdp_bytes.as_ptr() as *const Rsdp)
|
||||
.as_ref::<'static>()
|
||||
.unwrap()
|
||||
};
|
||||
|
||||
log::debug!("RSDP: {:?}", rsdp);
|
||||
|
||||
if rsdp.signature != *b"RSD PTR " {
|
||||
return Err(Invalid);
|
||||
}
|
||||
let mut base_sum = 0u8;
|
||||
for base_byte in &rsdp_bytes[..20] {
|
||||
base_sum = base_sum.wrapping_add(*base_byte);
|
||||
}
|
||||
if base_sum != 0 {
|
||||
return Err(Invalid);
|
||||
}
|
||||
|
||||
if rsdp.revision == 2 {
|
||||
let mut extended_sum = 0u8;
|
||||
for byte in rsdp_bytes {
|
||||
extended_sum = extended_sum.wrapping_add(*byte);
|
||||
}
|
||||
|
||||
if extended_sum != 0 {
|
||||
return Err(Invalid);
|
||||
}
|
||||
}
|
||||
|
||||
let length = if rsdp.revision == 2 {
|
||||
rsdp.length as usize
|
||||
} else {
|
||||
core::mem::size_of::<Rsdp>()
|
||||
};
|
||||
|
||||
Ok(length)
|
||||
}
|
||||
|
||||
pub(crate) fn find_acpi_table_pointers(os: &impl Os) -> Option<(u64, u64)> {
|
||||
let cfg_tables = std::system_table().config_tables();
|
||||
let mut acpi = None;
|
||||
let mut acpi2 = None;
|
||||
for cfg_table in cfg_tables.iter() {
|
||||
if cfg_table.VendorGuid == ACPI_TABLE_GUID {
|
||||
match validate_rsdp(cfg_table.VendorTable, false) {
|
||||
Ok(length) => {
|
||||
acpi = Some(unsafe {
|
||||
core::slice::from_raw_parts(cfg_table.VendorTable as *const u8, length)
|
||||
});
|
||||
}
|
||||
Err(_) => log::warn!(
|
||||
"Found RSDP that was not valid at {:p}",
|
||||
cfg_table.VendorTable as *const u8
|
||||
),
|
||||
}
|
||||
} else if cfg_table.VendorGuid == ACPI_20_TABLE_GUID {
|
||||
match validate_rsdp(cfg_table.VendorTable, true) {
|
||||
Ok(length) => {
|
||||
acpi2 = Some(unsafe {
|
||||
core::slice::from_raw_parts(cfg_table.VendorTable as *const u8, length)
|
||||
});
|
||||
}
|
||||
Err(_) => log::warn!(
|
||||
"Found RSDP that was not valid at {:p}",
|
||||
cfg_table.VendorTable as *const u8
|
||||
),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let rsdp_area = acpi2.or(acpi).unwrap_or(&[]);
|
||||
|
||||
if !rsdp_area.is_empty() {
|
||||
unsafe {
|
||||
// Copy to page aligned area
|
||||
let size = rsdp_area.len();
|
||||
let base = os.alloc_zeroed_page_aligned(size);
|
||||
slice::from_raw_parts_mut(base, size).copy_from_slice(rsdp_area);
|
||||
Some((base as u64, size as u64))
|
||||
}
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,236 @@
|
||||
use core::{arch::asm, fmt::Write, mem, slice};
|
||||
use uefi::status::Result;
|
||||
|
||||
use crate::{
|
||||
KernelArgs,
|
||||
arch::{ENTRY_ADDRESS_MASK, PAGE_ENTRIES, PF_PRESENT, PF_TABLE, PHYS_OFFSET},
|
||||
logger::LOGGER,
|
||||
};
|
||||
|
||||
use super::super::{OsEfi, memory_map::memory_map};
|
||||
|
||||
unsafe fn dump_page_tables(table_phys: u64, table_virt: u64, table_level: u64) {
|
||||
unsafe {
|
||||
let entries = slice::from_raw_parts(table_phys as *const u64, PAGE_ENTRIES);
|
||||
for (i, entry) in entries.iter().enumerate() {
|
||||
let phys = entry & ENTRY_ADDRESS_MASK;
|
||||
let flags = entry & !ENTRY_ADDRESS_MASK;
|
||||
if flags & PF_PRESENT == 0 {
|
||||
continue;
|
||||
}
|
||||
let mut shift = 39u64;
|
||||
for _ in 0..table_level {
|
||||
shift -= 9;
|
||||
print!("\t");
|
||||
}
|
||||
let virt = table_virt + (i as u64) << shift;
|
||||
println!(
|
||||
"index {} virt {:#x}: phys {:#x} flags {:#x}",
|
||||
i, virt, phys, flags
|
||||
);
|
||||
if table_level < 3 && flags & PF_TABLE == PF_TABLE {
|
||||
dump_page_tables(phys, virt, table_level + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unsafe extern "C" fn kernel_entry(
|
||||
page_phys: usize,
|
||||
stack: u64,
|
||||
func: u64,
|
||||
args: *const KernelArgs,
|
||||
) -> ! {
|
||||
unsafe {
|
||||
// Read memory map and exit boot services
|
||||
memory_map().exit_boot_services();
|
||||
|
||||
let currentel: u64;
|
||||
asm!(
|
||||
"mrs {0}, currentel", // Read current exception level
|
||||
out(reg) currentel,
|
||||
);
|
||||
if currentel == (2 << 2) {
|
||||
// Need to drop from EL2 to EL1
|
||||
|
||||
// Allow access to timers
|
||||
asm!(
|
||||
"mrs {0}, cnthctl_el2",
|
||||
"orr {0}, {0}, #0x3",
|
||||
"msr cnthctl_el2, {0}",
|
||||
"msr cntvoff_el2, xzr",
|
||||
out(reg) _
|
||||
);
|
||||
|
||||
// Initialize ID registers
|
||||
asm!(
|
||||
"mrs {0}, midr_el1",
|
||||
"msr vpidr_el2, {0}",
|
||||
"mrs {0}, mpidr_el1",
|
||||
"msr vmpidr_el2, {0}",
|
||||
out(reg) _
|
||||
);
|
||||
|
||||
// Disable traps
|
||||
asm!(
|
||||
"msr cptr_el2, {0}",
|
||||
"msr hstr_el2, xzr",
|
||||
in(reg) 0x33FF as u64
|
||||
);
|
||||
|
||||
// Enable floating point
|
||||
asm!(
|
||||
"msr cpacr_el1, {0}",
|
||||
in(reg) (3 << 20) as u64
|
||||
);
|
||||
|
||||
// Set EL1 system control register
|
||||
asm!(
|
||||
"msr sctlr_el1, {0}",
|
||||
in(reg) 0x30d00800 as u64
|
||||
);
|
||||
|
||||
// Set EL1 stack and VBAR
|
||||
asm!(
|
||||
"mov {0}, sp",
|
||||
"msr sp_el1, {0}",
|
||||
"mrs {0}, vbar_el2",
|
||||
"msr vbar_el1, {0}",
|
||||
out(reg) _
|
||||
);
|
||||
|
||||
// Configure execution state of EL1 as aarch64 and disable hypervisor call.
|
||||
asm!(
|
||||
"msr hcr_el2, {0}",
|
||||
in(reg) ((1u64 << 31) | (1u64 << 29)),
|
||||
);
|
||||
|
||||
// Set saved program status register
|
||||
asm!(
|
||||
"msr spsr_el2, {0}",
|
||||
in(reg) 0x3C5 as u64
|
||||
);
|
||||
|
||||
// Switch to EL1
|
||||
asm!(
|
||||
"adr {0}, 1f",
|
||||
"msr elr_el2, {0}",
|
||||
"eret",
|
||||
"1:",
|
||||
out(reg) _
|
||||
);
|
||||
} else if currentel == (1 << 2) {
|
||||
// Already in EL1
|
||||
} else {
|
||||
//TODO: what to do if not EL2 or already EL1?
|
||||
loop {
|
||||
asm!("wfi");
|
||||
}
|
||||
}
|
||||
|
||||
// Disable MMU
|
||||
asm!(
|
||||
"mrs {0}, sctlr_el1", // Read system control register
|
||||
"bic {0}, {0}, 1", // Clear MMU enable bit
|
||||
"msr sctlr_el1, {0}", // Write system control register
|
||||
"isb", // Instruction sync barrier
|
||||
out(reg) _,
|
||||
);
|
||||
|
||||
// Set MAIR
|
||||
// You can think about MAIRs as of an array with 8 elements each of 8 bits long.
|
||||
// You can store inside MAIRs up to 8 attributes sets and reffer them by the index 0..7 stored in INDX (AttrIndx) field of the table descriptor.
|
||||
// https://lowenware.com/blog/aarch64-mmu-programming/
|
||||
// https://developer.arm.com/documentation/102376/0200/Describing-memory-in-AArch64
|
||||
// https://developer.arm.com/documentation/ddi0595/2021-06/AArch64-Registers/MAIR-EL1--Memory-Attribute-Indirection-Register--EL1-
|
||||
// Attribute 0 (0xFF) - normal memory, caches are enabled
|
||||
// Attribute 1 (0x44) - normal memory, caches are disabled. Atomics wouldn't work here if memory doesn't support exclusive access (most real hardware don't)
|
||||
// Attribute 2 (0x00) - nGnRnE device memory, caches are disabled, gathering, re-ordering, and early write acknowledgement aren't allowed.
|
||||
asm!(
|
||||
"msr mair_el1, {0}",
|
||||
in(reg) 0x00000000000044FF as u64, // MAIR: Arrange for Device, Normal Non-Cache, Normal Write-Back access types
|
||||
);
|
||||
|
||||
// Set TCR
|
||||
asm!(
|
||||
"mrs {1}, id_aa64mmfr0_el1", // Read memory model feature register
|
||||
"bfi {0}, {1}, #32, #3",
|
||||
"msr tcr_el1, {0}", // Write translation control register
|
||||
"isb", // Instruction sync barrier
|
||||
in(reg) 0x1085100510u64, // TCR: (TxSZ, ASID_16, TG1_4K, Cache Attrs, SMP Attrs)
|
||||
out(reg) _,
|
||||
);
|
||||
|
||||
// Set page tables
|
||||
asm!(
|
||||
"dsb sy", // Data sync barrier
|
||||
"msr ttbr1_el1, {0}", // Set higher half page table
|
||||
"msr ttbr0_el1, {0}", // Set lower half page table
|
||||
"isb", // Instruction sync barrier
|
||||
"dsb ishst", // Data sync barrier, only for stores, and only for inner shareable domain
|
||||
"tlbi vmalle1is", // Invalidate TLB
|
||||
"dsb ish", // Dta sync bariar, only for inner shareable domain
|
||||
"isb", // Instruction sync barrier
|
||||
in(reg) page_phys,
|
||||
);
|
||||
|
||||
// Enable MMU
|
||||
asm!(
|
||||
"mrs {2}, sctlr_el1", // Read system control register
|
||||
"bic {2}, {2}, {0}", // Clear bits
|
||||
"orr {2}, {2}, {1}", // Set bits
|
||||
"msr sctlr_el1, {2}", // Write system control register
|
||||
"isb", // Instruction sync barrier
|
||||
in(reg) 0x32802c2u64, // Clear SCTLR bits: (EE, EOE, IESB, WXN, UMA, ITD, THEE, A)
|
||||
in(reg) 0x3485d13du64, // Set SCTLR bits: (LSMAOE, nTLSMD, UCI, SPAN, nTWW, nTWI, UCT, DZE, I, SED, SA0, SA, C, M, CP15BEN)
|
||||
out(reg) _,
|
||||
);
|
||||
|
||||
// Set stack
|
||||
asm!("mov sp, {}", in(reg) stack);
|
||||
|
||||
// Call kernel entry
|
||||
let entry_fn: extern "C" fn(*const KernelArgs) -> ! = mem::transmute(func);
|
||||
entry_fn(args);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn main() -> Result<()> {
|
||||
LOGGER.init();
|
||||
|
||||
let mut os = OsEfi::new();
|
||||
|
||||
// Disable cursor
|
||||
let _ = (os.st.ConsoleOut.EnableCursor)(os.st.ConsoleOut, false);
|
||||
|
||||
let currentel: u64;
|
||||
unsafe {
|
||||
asm!(
|
||||
"mrs {0}, currentel", // Read current exception level
|
||||
out(reg) currentel,
|
||||
);
|
||||
}
|
||||
log::info!("Currently in EL{}", (currentel >> 2) & 3);
|
||||
|
||||
let (page_phys, func, args) = crate::main(&mut os);
|
||||
|
||||
unsafe {
|
||||
let stack = args.stack_base + args.stack_size + PHYS_OFFSET;
|
||||
|
||||
// dump_page_tables(page_phys as _, 0, 0);
|
||||
|
||||
println!(
|
||||
"kernel_entry({:#x}, {:#x}, {:#x}, {:p})",
|
||||
page_phys, stack, func, &args
|
||||
);
|
||||
println!("{:#x?}", args);
|
||||
|
||||
kernel_entry(page_phys, stack, func, &args);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn disable_interrupts() {
|
||||
unsafe {
|
||||
asm!("msr daifset, #2");
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,14 @@
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
mod aarch64;
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
pub use self::aarch64::*;
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
mod x86_64;
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
pub use self::x86_64::*;
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
mod riscv64;
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
pub use self::riscv64::*;
|
||||
@@ -0,0 +1,45 @@
|
||||
use std::proto::Protocol;
|
||||
use uefi::guid::Guid;
|
||||
use uefi::status::{Result, Status};
|
||||
|
||||
#[derive(Debug)]
|
||||
#[repr(C)]
|
||||
struct RiscVEfiBootProtocol {
|
||||
pub revision: u64,
|
||||
pub efi_get_boot_hartid:
|
||||
unsafe extern "efiapi" fn(this: *mut Self, phartid: *mut usize) -> Status,
|
||||
}
|
||||
|
||||
impl RiscVEfiBootProtocol {
|
||||
pub const GUID: Guid = Guid::parse_str("ccd15fec-6f73-4eec-8395-3e69e4b940bf");
|
||||
// pub const REVISION: u64 = 0x00010000;
|
||||
}
|
||||
|
||||
struct RiscVEfiBoot(pub &'static mut RiscVEfiBootProtocol);
|
||||
|
||||
impl Protocol<RiscVEfiBootProtocol> for RiscVEfiBoot {
|
||||
fn guid() -> Guid {
|
||||
RiscVEfiBootProtocol::GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut RiscVEfiBootProtocol) -> Self {
|
||||
Self(inner)
|
||||
}
|
||||
}
|
||||
|
||||
impl RiscVEfiBoot {
|
||||
pub fn efi_get_boot_hartid(&mut self) -> Result<usize> {
|
||||
let mut boot_hartid: usize = 0;
|
||||
match unsafe { (self.0.efi_get_boot_hartid)(self.0, &mut boot_hartid) } {
|
||||
ok if ok.is_success() => Ok(boot_hartid),
|
||||
err => Err(err),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn efi_get_boot_hartid() -> Result<usize> {
|
||||
let handles = RiscVEfiBoot::locate_handle()?;
|
||||
let handle = handles.first().ok_or(Status::NOT_FOUND)?;
|
||||
let mut proto = RiscVEfiBoot::handle_protocol(*handle)?;
|
||||
proto.efi_get_boot_hartid()
|
||||
}
|
||||
@@ -0,0 +1,113 @@
|
||||
use core::arch::{global_asm, naked_asm};
|
||||
|
||||
/// Unfortunately this can't be written in Rust because it might use some not-yet
|
||||
/// relocated data such as jump tables
|
||||
#[unsafe(naked)]
|
||||
#[unsafe(no_mangle)]
|
||||
extern "C" fn coff_relocate(dynentry: *const u8, base: usize) -> usize {
|
||||
unsafe {
|
||||
naked_asm!(
|
||||
"
|
||||
mv t4, zero // RELA
|
||||
li t5, -1 // RELASZ
|
||||
li t6, -1 // RELAENT
|
||||
|
||||
5:
|
||||
ld t0, 0(a0)
|
||||
beqz t0, 6f
|
||||
addi a0, a0, 16
|
||||
addi t0, t0, -4
|
||||
bltz t0, 3f // fail on DT_NEEDED=1, DT_PLTRELSZ=2, DT_PLTGOT=3
|
||||
addi t0, t0, -3
|
||||
bltz t0, 5b // skip DT_HASH=4, DT_STRTAB=5, DT_SYMTAB=6
|
||||
bnez t0, 2f
|
||||
ld t4, -8(a0) // DT_RELA=7
|
||||
j 5b
|
||||
2: addi t0, t0, -1 // DT_RELASZ=8
|
||||
bnez t0, 2f
|
||||
ld t5, -8(a0)
|
||||
j 5b
|
||||
2: addi t0, t0, -1 // DT_RELAENT=9
|
||||
bnez t0, 2f
|
||||
ld t6, -8(a0)
|
||||
j 5b
|
||||
2: addi t0, t0, -3
|
||||
bltz t0, 5b // skip DT_STRSZ=10, DT_SYMENT=11
|
||||
addi t0, t0, -2
|
||||
bltz t0, 3f // fail on DT_INIT=12, DT_FINI=13
|
||||
beqz t0, 5b // skip DT_SONAME=14
|
||||
2: addi t0, t0, -2
|
||||
bltz t0, 3f // fail on DT_RPATH
|
||||
beqz t0, 5b // skip SYMBOLIC=16
|
||||
li t1, 0x6ffffef5-16
|
||||
sub t0, t0, t1
|
||||
beqz t0, 5b // skip DT_GNU_HASH=0x6ffffef5
|
||||
nop
|
||||
3: // error
|
||||
mv a0, zero
|
||||
ret
|
||||
|
||||
6:
|
||||
bnez t4, 2f
|
||||
4: // success
|
||||
li a0, 1
|
||||
ret
|
||||
2: bltz t5, 3b
|
||||
blez t6, 3b
|
||||
|
||||
add t4, t4, a1
|
||||
add t5, t5, t4
|
||||
7:
|
||||
bge t4, t5, 4b
|
||||
ld t0, 0(t4) // r_offset
|
||||
add t0, t0, a1
|
||||
lwu t1, 8(t4) // r_type
|
||||
ld t2, 16(t4) // r_addend
|
||||
add t4, t4, t6
|
||||
addi t1, t1, -3 // R_RISCV_RELATIVE=3
|
||||
bnez t1, 3b
|
||||
add t2, t2, a1 // RELATIVE: *value = base + addend
|
||||
sd t2, 0(t0)
|
||||
j 7b
|
||||
"
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
global_asm!(
|
||||
r#"
|
||||
.global coff_start
|
||||
coff_start:
|
||||
.option norelax
|
||||
addi sp, sp, -24
|
||||
sd a0, 0(sp)
|
||||
sd a1, 8(sp)
|
||||
sd ra, 16(sp)
|
||||
lla a0, _DYNAMIC
|
||||
lla a1, ImageBase // actual loaded image base to relocate to
|
||||
jal coff_relocate
|
||||
.option relax
|
||||
mv t0, a0
|
||||
ld a0, 0(sp)
|
||||
ld a1, 8(sp)
|
||||
ld ra, 16(sp)
|
||||
addi sp, sp, 24
|
||||
beqz t0, 2f
|
||||
j efi_main
|
||||
2: ret
|
||||
"#
|
||||
);
|
||||
|
||||
// GNU-EFI .reloc trick to make objcopy say we are relocatable
|
||||
global_asm!(
|
||||
r#"
|
||||
.section .data
|
||||
DUMMY_RELOCATION: .4byte 0
|
||||
.section .reloc, "a"
|
||||
|
||||
2:
|
||||
.4byte DUMMY_RELOCATION - ImageBase
|
||||
.4byte 12
|
||||
.4byte 0
|
||||
"#
|
||||
);
|
||||
@@ -0,0 +1,70 @@
|
||||
use crate::KernelArgs;
|
||||
use crate::arch::PHYS_OFFSET;
|
||||
use crate::arch::SATP_BITS;
|
||||
use crate::logger::LOGGER;
|
||||
use crate::os::OsEfi;
|
||||
use crate::os::uefi::memory_map::memory_map;
|
||||
use core::arch::asm;
|
||||
use core::mem;
|
||||
use uefi::status::Result;
|
||||
|
||||
mod boot_protocol;
|
||||
mod coff_helper;
|
||||
|
||||
pub use boot_protocol::*;
|
||||
|
||||
unsafe extern "C" fn kernel_entry(
|
||||
page_phys: usize,
|
||||
stack: u64,
|
||||
func: u64,
|
||||
args: *const KernelArgs,
|
||||
) -> ! {
|
||||
unsafe {
|
||||
// Set page tables
|
||||
asm!(
|
||||
"csrw satp, {0}",
|
||||
"sfence.vma",
|
||||
in(reg) (page_phys >> 12 | SATP_BITS << 60)
|
||||
);
|
||||
|
||||
let entry_fn: extern "C" fn(*const KernelArgs) -> ! = mem::transmute(func);
|
||||
|
||||
// Set stack and go to kernel
|
||||
asm!("mv sp, {0}",
|
||||
"mv a0, {1}",
|
||||
"jalr {2}",
|
||||
in(reg) stack,
|
||||
in(reg) args,
|
||||
in(reg) entry_fn
|
||||
);
|
||||
loop {}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn main() -> Result<()> {
|
||||
LOGGER.init();
|
||||
|
||||
let mut os = OsEfi::new();
|
||||
|
||||
// Disable cursor
|
||||
let _ = (os.st.ConsoleOut.EnableCursor)(os.st.ConsoleOut, false);
|
||||
|
||||
let (page_phys, func, args) = crate::main(&mut os);
|
||||
|
||||
unsafe {
|
||||
memory_map().exit_boot_services();
|
||||
|
||||
kernel_entry(
|
||||
page_phys,
|
||||
args.stack_base + args.stack_size + PHYS_OFFSET,
|
||||
func,
|
||||
&args,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn disable_interrupts() {
|
||||
unsafe {
|
||||
asm!("csrci sstatus, 2");
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,82 @@
|
||||
use core::{arch::asm, mem};
|
||||
use uefi::status::Result;
|
||||
use x86::{
|
||||
controlregs::{self, Cr0, Cr4},
|
||||
msr,
|
||||
};
|
||||
|
||||
use crate::{KernelArgs, logger::LOGGER};
|
||||
|
||||
use super::super::{OsEfi, memory_map::memory_map};
|
||||
|
||||
unsafe extern "C" fn kernel_entry(
|
||||
page_phys: usize,
|
||||
stack: u64,
|
||||
func: u64,
|
||||
args: *const KernelArgs,
|
||||
) -> ! {
|
||||
unsafe {
|
||||
// Read memory map and exit boot services
|
||||
memory_map().exit_boot_services();
|
||||
|
||||
// Enable FXSAVE/FXRSTOR, Page Global, Page Address Extension, and Page Size Extension
|
||||
let mut cr4 = controlregs::cr4();
|
||||
cr4 |= Cr4::CR4_ENABLE_SSE
|
||||
| Cr4::CR4_ENABLE_GLOBAL_PAGES
|
||||
| Cr4::CR4_ENABLE_PAE
|
||||
| Cr4::CR4_ENABLE_PSE;
|
||||
controlregs::cr4_write(cr4);
|
||||
|
||||
// Enable Long mode and NX bit
|
||||
let mut efer = msr::rdmsr(msr::IA32_EFER);
|
||||
efer |= 1 << 11 | 1 << 8;
|
||||
msr::wrmsr(msr::IA32_EFER, efer);
|
||||
|
||||
// Set new page map
|
||||
controlregs::cr3_write(page_phys as u64);
|
||||
|
||||
// Enable paging, write protect kernel, protected mode
|
||||
let mut cr0 = controlregs::cr0();
|
||||
cr0 |= Cr0::CR0_ENABLE_PAGING | Cr0::CR0_WRITE_PROTECT | Cr0::CR0_PROTECTED_MODE;
|
||||
controlregs::cr0_write(cr0);
|
||||
|
||||
// Set stack
|
||||
asm!("mov rsp, {}", in(reg) stack);
|
||||
|
||||
// Call kernel entry
|
||||
let entry_fn: extern "sysv64" fn(*const KernelArgs) -> ! = mem::transmute(func);
|
||||
entry_fn(args);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn main() -> Result<()> {
|
||||
LOGGER.init();
|
||||
|
||||
let mut os = OsEfi::new();
|
||||
|
||||
// Disable cursor
|
||||
let _ = (os.st.ConsoleOut.EnableCursor)(os.st.ConsoleOut, false);
|
||||
|
||||
let (page_phys, func, args) = crate::main(&mut os);
|
||||
|
||||
unsafe {
|
||||
kernel_entry(
|
||||
page_phys,
|
||||
args.stack_base
|
||||
+ args.stack_size
|
||||
+ if crate::KERNEL_64BIT {
|
||||
crate::arch::x64::PHYS_OFFSET
|
||||
} else {
|
||||
crate::arch::x32::PHYS_OFFSET as u64
|
||||
},
|
||||
func,
|
||||
&args,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn disable_interrupts() {
|
||||
unsafe {
|
||||
asm!("cli");
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,509 @@
|
||||
use alloc::{string::String, vec, vec::Vec};
|
||||
use core::{fmt::Write, mem, ptr, slice};
|
||||
use uefi::{
|
||||
Handle,
|
||||
device::{
|
||||
DevicePath, DevicePathAcpiType, DevicePathBbsType, DevicePathEndType,
|
||||
DevicePathHardwareType, DevicePathMediaType, DevicePathMessagingType, DevicePathType,
|
||||
},
|
||||
guid::Guid,
|
||||
status::Status,
|
||||
};
|
||||
use uefi_std::{fs::FileSystem, loaded_image::LoadedImage, proto::Protocol};
|
||||
|
||||
use super::disk::{DiskEfi, DiskOrFileEfi};
|
||||
|
||||
#[derive(Debug)]
|
||||
enum DevicePathRelation {
|
||||
This,
|
||||
Parent(usize),
|
||||
Child(usize),
|
||||
None,
|
||||
}
|
||||
|
||||
fn device_path_relation(a_path: &DevicePath, b_path: &DevicePath) -> DevicePathRelation {
|
||||
let mut a_iter = DevicePathIter::new(a_path);
|
||||
let mut b_iter = DevicePathIter::new(b_path);
|
||||
loop {
|
||||
match (a_iter.next(), b_iter.next()) {
|
||||
(None, None) => return DevicePathRelation::This,
|
||||
(None, Some(_)) => return DevicePathRelation::Parent(b_iter.count()),
|
||||
(Some(_), None) => return DevicePathRelation::Child(a_iter.count()),
|
||||
(Some((a_node, a_data)), Some((b_node, b_data))) => {
|
||||
if a_node.Type != b_node.Type {
|
||||
return DevicePathRelation::None;
|
||||
}
|
||||
|
||||
if a_node.SubType != b_node.SubType {
|
||||
return DevicePathRelation::None;
|
||||
}
|
||||
|
||||
if a_data != b_data {
|
||||
return DevicePathRelation::None;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn esp_live_image(esp_handle: Handle, esp_device_path: &DevicePath) -> Option<Vec<u8>> {
|
||||
let mut esp_fs = match FileSystem::handle_protocol(esp_handle) {
|
||||
Ok(esp_fs) => esp_fs,
|
||||
Err(err) => {
|
||||
log::warn!("Failed to find SimpleFileSystem protocol: {:?}", err);
|
||||
return None;
|
||||
}
|
||||
};
|
||||
|
||||
let mut root = match esp_fs.root() {
|
||||
Ok(root) => root,
|
||||
Err(err) => {
|
||||
log::warn!("Failed to open ESP filesystem: {:?}", err);
|
||||
return None;
|
||||
}
|
||||
};
|
||||
|
||||
const fn as_utf16_str<const N: usize>(s: [u8; N]) -> [u16; N] {
|
||||
let mut ret = [0; N];
|
||||
let mut i = 0;
|
||||
while i < N {
|
||||
ret[i] = s[i] as u16;
|
||||
i += 1;
|
||||
}
|
||||
ret
|
||||
}
|
||||
|
||||
let filename = const { &as_utf16_str(*b"redox-live.iso\0") };
|
||||
let mut live_image = match root.open(filename) {
|
||||
Ok(live_image) => live_image,
|
||||
Err(Status::NOT_FOUND) => return None,
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to open {}\\redox-live.iso: {:?}",
|
||||
device_path_to_string(esp_device_path),
|
||||
err
|
||||
);
|
||||
return None;
|
||||
}
|
||||
};
|
||||
|
||||
let mut buffer = Vec::new();
|
||||
|
||||
live_image.read_to_end(&mut buffer).unwrap();
|
||||
|
||||
Some(buffer)
|
||||
}
|
||||
|
||||
pub struct DiskDevice {
|
||||
pub handle: Handle,
|
||||
pub disk: DiskOrFileEfi,
|
||||
pub partition_offset: u64,
|
||||
pub device_path: DevicePathProtocol,
|
||||
pub file_path: Option<&'static str>,
|
||||
}
|
||||
|
||||
pub fn disk_device_priority() -> Vec<DiskDevice> {
|
||||
// Get the handle of the partition this program was loaded from, which should be the ESP
|
||||
let esp_handle = match LoadedImage::handle_protocol(std::handle()) {
|
||||
Ok(loaded_image) => loaded_image.0.DeviceHandle,
|
||||
Err(err) => {
|
||||
log::warn!("Failed to find LoadedImage protocol: {:?}", err);
|
||||
return Vec::new();
|
||||
}
|
||||
};
|
||||
|
||||
// Get the device path of the ESP
|
||||
let esp_device_path = match DevicePathProtocol::handle_protocol(esp_handle) {
|
||||
Ok(ok) => ok,
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to find device path protocol on {:?}: {:?}",
|
||||
esp_handle,
|
||||
err
|
||||
);
|
||||
return Vec::new();
|
||||
}
|
||||
};
|
||||
|
||||
if cfg!(feature = "live") {
|
||||
// First try to get a live image from redox-live.iso. This is required to support netbooting.
|
||||
if let Some(buffer) = esp_live_image(esp_handle, esp_device_path.0) {
|
||||
return vec![DiskDevice {
|
||||
handle: esp_handle,
|
||||
// Support both a copy of livedisk.iso and a standalone redoxfs partition
|
||||
partition_offset: if &buffer[512..520] == b"EFI PART" {
|
||||
//TODO: get block from partition table
|
||||
2 * crate::MIBI as u64
|
||||
} else {
|
||||
0
|
||||
},
|
||||
disk: DiskOrFileEfi::File(buffer),
|
||||
device_path: esp_device_path,
|
||||
file_path: Some("redox-live.iso"),
|
||||
}];
|
||||
}
|
||||
}
|
||||
|
||||
// Get all block I/O handles along with their block I/O implementations and device paths
|
||||
let handles = match DiskEfi::locate_handle() {
|
||||
Ok(ok) => ok,
|
||||
Err(err) => {
|
||||
log::warn!("Failed to find block I/O handles: {:?}", err);
|
||||
Vec::new()
|
||||
}
|
||||
};
|
||||
let mut devices = Vec::with_capacity(handles.len());
|
||||
for handle in handles {
|
||||
let disk = match DiskEfi::handle_protocol(handle) {
|
||||
Ok(ok) => ok,
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to find block I/O protocol on {:?}: {:?}",
|
||||
handle,
|
||||
err
|
||||
);
|
||||
continue;
|
||||
}
|
||||
};
|
||||
|
||||
if !disk.0.Media.MediaPresent {
|
||||
continue;
|
||||
}
|
||||
|
||||
let device_path = match DevicePathProtocol::handle_protocol(handle) {
|
||||
Ok(ok) => ok,
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to find device path protocol on {:?}: {:?}",
|
||||
handle,
|
||||
err
|
||||
);
|
||||
continue;
|
||||
}
|
||||
};
|
||||
|
||||
devices.push(DiskDevice {
|
||||
handle,
|
||||
partition_offset: if disk.0.Media.LogicalPartition {
|
||||
0
|
||||
} else {
|
||||
//TODO: get block from partition table
|
||||
2 * crate::MIBI as u64
|
||||
},
|
||||
disk: DiskOrFileEfi::Disk(disk),
|
||||
device_path,
|
||||
file_path: None,
|
||||
});
|
||||
}
|
||||
|
||||
// Find possible boot disks
|
||||
let mut boot_disks = Vec::with_capacity(1);
|
||||
{
|
||||
let mut i = 0;
|
||||
while i < devices.len() {
|
||||
if let DevicePathRelation::Parent(0) =
|
||||
device_path_relation(devices[i].device_path.0, esp_device_path.0)
|
||||
{
|
||||
boot_disks.push(devices.remove(i));
|
||||
continue;
|
||||
}
|
||||
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Find all children of possible boot devices
|
||||
let mut priority = Vec::with_capacity(devices.capacity());
|
||||
for boot_disk in boot_disks {
|
||||
let mut i = 0;
|
||||
while i < devices.len() {
|
||||
// Only prioritize non-ESP devices
|
||||
if devices[i].handle != esp_handle {
|
||||
if let DevicePathRelation::Child(0) =
|
||||
device_path_relation(devices[i].device_path.0, boot_disk.device_path.0)
|
||||
{
|
||||
priority.push(devices.remove(i));
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
i += 1;
|
||||
}
|
||||
|
||||
priority.push(boot_disk);
|
||||
}
|
||||
|
||||
// Add any remaining devices
|
||||
priority.extend(devices);
|
||||
|
||||
priority
|
||||
}
|
||||
|
||||
#[repr(C, packed)]
|
||||
#[allow(dead_code)]
|
||||
struct DevicePathHarddrive {
|
||||
partition_number: u32,
|
||||
partition_start: u64,
|
||||
partition_size: u64,
|
||||
partition_signature: [u8; 16],
|
||||
partition_format: u8,
|
||||
signature_type: u8,
|
||||
}
|
||||
|
||||
pub fn device_path_to_string(device_path: &DevicePath) -> String {
|
||||
let mut s = String::new();
|
||||
for (node, node_data) in DevicePathIter::new(device_path) {
|
||||
let read_u16 = |i: usize| -> u16 { (node_data[i] as u16) | (node_data[i + 1] as u16) << 8 };
|
||||
|
||||
let read_u32 = |i: usize| -> u32 {
|
||||
(node_data[i] as u32)
|
||||
| (node_data[i + 1] as u32) << 8
|
||||
| (node_data[i + 2] as u32) << 16
|
||||
| (node_data[i + 3] as u32) << 24
|
||||
};
|
||||
|
||||
if !s.is_empty() {
|
||||
s.push('/');
|
||||
}
|
||||
|
||||
let _ = match DevicePathType::try_from(node.Type) {
|
||||
Ok(path_type) => match path_type {
|
||||
DevicePathType::Hardware => match DevicePathHardwareType::try_from(node.SubType) {
|
||||
Ok(sub_type) => match sub_type {
|
||||
DevicePathHardwareType::Pci if node_data.len() == 2 => {
|
||||
let func = node_data[0];
|
||||
let dev = node_data[1];
|
||||
write!(s, "Pci(0x{dev:X},0x{func:X})")
|
||||
}
|
||||
_ => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
},
|
||||
Err(()) => write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data),
|
||||
},
|
||||
DevicePathType::Acpi => match DevicePathAcpiType::try_from(node.SubType) {
|
||||
Ok(sub_type) => match sub_type {
|
||||
DevicePathAcpiType::Acpi if node_data.len() == 8 => {
|
||||
let hid = read_u32(0);
|
||||
let uid = read_u32(4);
|
||||
if hid & 0xFFFF == 0x41D0 {
|
||||
write!(s, "Acpi(PNP{:04X},0x{:X})", hid >> 16, uid)
|
||||
} else {
|
||||
write!(s, "Acpi(0x{hid:08X},0x{uid:X})")
|
||||
}
|
||||
}
|
||||
_ => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
},
|
||||
Err(()) => write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data),
|
||||
},
|
||||
DevicePathType::Messaging => {
|
||||
match DevicePathMessagingType::try_from(node.SubType) {
|
||||
Ok(sub_type) => match sub_type {
|
||||
DevicePathMessagingType::Sata if node_data.len() == 6 => {
|
||||
let hba_port = read_u16(0);
|
||||
let multiplier_port = read_u16(2);
|
||||
let logical_unit = read_u16(4);
|
||||
if multiplier_port & (1 << 15) != 0 {
|
||||
write!(s, "Sata(0x{hba_port:X},0x{logical_unit:X})")
|
||||
} else {
|
||||
write!(
|
||||
s,
|
||||
"Sata(0x{hba_port:X},0x{multiplier_port:X},0x{logical_unit:X})"
|
||||
)
|
||||
}
|
||||
}
|
||||
DevicePathMessagingType::Usb if node_data.len() == 2 => {
|
||||
let port = node_data[0];
|
||||
let iface = node_data[1];
|
||||
write!(s, "Usb(0x{port:X},0x{iface:X})")
|
||||
}
|
||||
DevicePathMessagingType::Nvme if node_data.len() == 12 => {
|
||||
let nsid = read_u32(0);
|
||||
let eui = &node_data[4..];
|
||||
if eui == [0, 0, 0, 0, 0, 0, 0, 0] {
|
||||
write!(s, "NVMe(0x{nsid:X})")
|
||||
} else {
|
||||
write!(
|
||||
s,
|
||||
"NVMe(0x{:X},{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X}-{:02X})",
|
||||
nsid,
|
||||
eui[0],
|
||||
eui[1],
|
||||
eui[2],
|
||||
eui[3],
|
||||
eui[4],
|
||||
eui[5],
|
||||
eui[6],
|
||||
eui[7],
|
||||
)
|
||||
}
|
||||
}
|
||||
DevicePathMessagingType::Mac
|
||||
if node_data.len() == 33 && node_data[32] == 0
|
||||
|| node_data[32] == 1 =>
|
||||
{
|
||||
write!(
|
||||
s,
|
||||
"Mac({:02x}{:02x}{:02x}{:02x}{:02x}{:02x},{:#02x})",
|
||||
node_data[0],
|
||||
node_data[1],
|
||||
node_data[2],
|
||||
node_data[3],
|
||||
node_data[4],
|
||||
node_data[5],
|
||||
node_data[32],
|
||||
)
|
||||
}
|
||||
_ => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
},
|
||||
Err(()) => {
|
||||
write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data)
|
||||
}
|
||||
}
|
||||
}
|
||||
DevicePathType::Media => match DevicePathMediaType::try_from(node.SubType) {
|
||||
Ok(sub_type) => {
|
||||
match sub_type {
|
||||
DevicePathMediaType::Harddrive
|
||||
if node_data.len() == mem::size_of::<DevicePathHarddrive>() =>
|
||||
{
|
||||
let harddrive = unsafe {
|
||||
ptr::read(node_data.as_ptr() as *const DevicePathHarddrive)
|
||||
};
|
||||
let partition_number = unsafe {
|
||||
ptr::read_unaligned(ptr::addr_of!(harddrive.partition_number))
|
||||
};
|
||||
match harddrive.signature_type {
|
||||
1 => {
|
||||
let id = unsafe {
|
||||
ptr::read(harddrive.partition_signature.as_ptr()
|
||||
as *const u32)
|
||||
};
|
||||
write!(s, "HD(0x{partition_number:X},MBR,0x{id:X})")
|
||||
}
|
||||
2 => {
|
||||
let guid = unsafe {
|
||||
ptr::read(harddrive.partition_signature.as_ptr()
|
||||
as *const Guid)
|
||||
};
|
||||
write!(
|
||||
s,
|
||||
"HD(0x{:X},GPT,{:08X}-{:04X}-{:04X}-{:02X}{:02X}-{:02X}{:02X}{:02X}{:02X}{:02X}{:02X})",
|
||||
partition_number,
|
||||
guid.0,
|
||||
guid.1,
|
||||
guid.2,
|
||||
guid.3[0],
|
||||
guid.3[1],
|
||||
guid.3[2],
|
||||
guid.3[3],
|
||||
guid.3[4],
|
||||
guid.3[5],
|
||||
guid.3[6],
|
||||
guid.3[7],
|
||||
)
|
||||
}
|
||||
_ => {
|
||||
write!(
|
||||
s,
|
||||
"HD(0x{:X},0x{:X},{:X?})",
|
||||
partition_number,
|
||||
harddrive.signature_type,
|
||||
harddrive.partition_signature
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
DevicePathMediaType::Filepath => {
|
||||
for chunk in node_data.chunks_exact(2) {
|
||||
let data = (chunk[0] as u16) | (chunk[1] as u16) << 8;
|
||||
match unsafe { char::from_u32_unchecked(data as u32) } {
|
||||
'\\' => s.push('/'),
|
||||
c => s.push(c),
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
_ => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
}
|
||||
}
|
||||
Err(()) => write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data),
|
||||
},
|
||||
DevicePathType::Bbs => match DevicePathBbsType::try_from(node.SubType) {
|
||||
Ok(sub_type) => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
Err(()) => write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data),
|
||||
},
|
||||
DevicePathType::End => match DevicePathEndType::try_from(node.SubType) {
|
||||
Ok(sub_type) => write!(s, "{path_type:?} {sub_type:?} {node_data:X?}"),
|
||||
Err(()) => write!(s, "{:?} 0x{:02X} {:X?}", path_type, node.SubType, node_data),
|
||||
},
|
||||
},
|
||||
Err(()) => {
|
||||
write!(
|
||||
s,
|
||||
"0x{:02X} 0x{:02X} {:X?}",
|
||||
node.Type, node.SubType, node_data
|
||||
)
|
||||
}
|
||||
};
|
||||
}
|
||||
s
|
||||
}
|
||||
|
||||
pub struct DevicePathProtocol(pub &'static mut DevicePath);
|
||||
|
||||
impl Protocol<DevicePath> for DevicePathProtocol {
|
||||
fn guid() -> Guid {
|
||||
uefi::guid::DEVICE_PATH_GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut DevicePath) -> Self {
|
||||
Self(inner)
|
||||
}
|
||||
}
|
||||
|
||||
pub struct LoadedImageDevicePathProtocol(pub &'static mut DevicePath);
|
||||
|
||||
impl Protocol<DevicePath> for LoadedImageDevicePathProtocol {
|
||||
fn guid() -> Guid {
|
||||
uefi::guid::LOADED_IMAGE_DEVICE_PATH_GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut DevicePath) -> Self {
|
||||
Self(inner)
|
||||
}
|
||||
}
|
||||
|
||||
pub struct DevicePathIter<'a> {
|
||||
device_path: &'a DevicePath,
|
||||
node_ptr: *const DevicePath,
|
||||
}
|
||||
|
||||
impl<'a> DevicePathIter<'a> {
|
||||
pub fn new(device_path: &'a DevicePath) -> Self {
|
||||
Self {
|
||||
device_path,
|
||||
node_ptr: device_path as *const DevicePath,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Iterator for DevicePathIter<'a> {
|
||||
type Item = (&'a DevicePath, &'a [u8]);
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
let node = unsafe { &*self.node_ptr };
|
||||
|
||||
if node.Type == DevicePathType::End as u8 {
|
||||
return None;
|
||||
}
|
||||
|
||||
let node_data = unsafe {
|
||||
slice::from_raw_parts(
|
||||
self.node_ptr.add(1) as *mut u8,
|
||||
node.Length.saturating_sub(4) as usize,
|
||||
)
|
||||
};
|
||||
|
||||
self.node_ptr = (self.node_ptr as usize + node.Length as usize) as *const DevicePath;
|
||||
|
||||
Some((node, node_data))
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,119 @@
|
||||
use alloc::vec::Vec;
|
||||
use core::slice;
|
||||
use redoxfs::{BLOCK_SIZE, Disk, RECORD_SIZE};
|
||||
use std::proto::Protocol;
|
||||
use syscall::{EINVAL, EIO, Error, Result};
|
||||
use uefi::block_io::BlockIo as UefiBlockIo;
|
||||
use uefi::guid::{BLOCK_IO_GUID, Guid};
|
||||
|
||||
pub enum DiskOrFileEfi {
|
||||
Disk(DiskEfi),
|
||||
File(Vec<u8>),
|
||||
}
|
||||
|
||||
impl redoxfs::Disk for DiskOrFileEfi {
|
||||
unsafe fn read_at(&mut self, block: u64, buffer: &mut [u8]) -> syscall::Result<usize> {
|
||||
unsafe {
|
||||
match self {
|
||||
DiskOrFileEfi::Disk(disk_efi) => disk_efi.read_at(block, buffer),
|
||||
DiskOrFileEfi::File(data) => {
|
||||
buffer.copy_from_slice(
|
||||
&data[(block * redoxfs::BLOCK_SIZE) as usize
|
||||
..(block * redoxfs::BLOCK_SIZE) as usize + buffer.len()],
|
||||
);
|
||||
Ok(buffer.len())
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unsafe fn write_at(&mut self, _block: u64, _buffer: &[u8]) -> syscall::Result<usize> {
|
||||
unreachable!()
|
||||
}
|
||||
|
||||
fn size(&mut self) -> syscall::Result<u64> {
|
||||
unreachable!()
|
||||
}
|
||||
}
|
||||
|
||||
pub struct DiskEfi(pub &'static mut UefiBlockIo, &'static mut [u8]);
|
||||
|
||||
impl Protocol<UefiBlockIo> for DiskEfi {
|
||||
fn guid() -> Guid {
|
||||
BLOCK_IO_GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut UefiBlockIo) -> Self {
|
||||
// Hack to get aligned buffer
|
||||
let block = unsafe {
|
||||
let ptr = super::alloc_zeroed_page_aligned(RECORD_SIZE as usize);
|
||||
slice::from_raw_parts_mut(ptr, RECORD_SIZE as usize)
|
||||
};
|
||||
|
||||
Self(inner, block)
|
||||
}
|
||||
}
|
||||
|
||||
impl Disk for DiskEfi {
|
||||
unsafe fn read_at(&mut self, block: u64, buffer: &mut [u8]) -> Result<usize> {
|
||||
unsafe {
|
||||
// Optimization for live disks
|
||||
if let Some(live) = crate::LIVE_OPT {
|
||||
if block >= live.0 {
|
||||
let start = ((block - live.0) * BLOCK_SIZE) as usize;
|
||||
let end = start + buffer.len();
|
||||
if end <= live.1.len() {
|
||||
buffer.copy_from_slice(&live.1[start..end]);
|
||||
return Ok(buffer.len());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Use aligned buffer if necessary
|
||||
let mut ptr = buffer.as_mut_ptr();
|
||||
if self.0.Media.IoAlign != 0 {
|
||||
if (ptr as usize) % (self.0.Media.IoAlign as usize) != 0 {
|
||||
if buffer.len() <= self.1.len() {
|
||||
ptr = self.1.as_mut_ptr();
|
||||
} else {
|
||||
println!(
|
||||
"DiskEfi::read_at 0x{:X} requires alignment, ptr = 0x{:p}, len = 0x{:x}",
|
||||
block,
|
||||
ptr,
|
||||
buffer.len()
|
||||
);
|
||||
return Err(Error::new(EINVAL));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let block_size = self.0.Media.BlockSize as u64;
|
||||
let lba = block * BLOCK_SIZE / block_size;
|
||||
|
||||
match (self.0.ReadBlocks)(self.0, self.0.Media.MediaId, lba, buffer.len(), ptr) {
|
||||
status if status.is_success() => {
|
||||
// Copy to original buffer if using aligned buffer
|
||||
if ptr != buffer.as_mut_ptr() {
|
||||
let (left, _) = self.1.split_at(buffer.len());
|
||||
buffer.copy_from_slice(left);
|
||||
}
|
||||
Ok(buffer.len())
|
||||
}
|
||||
err => {
|
||||
println!("DiskEfi::read_at 0x{:X} failed: {:?}", block, err);
|
||||
Err(Error::new(EIO))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
unsafe fn write_at(&mut self, block: u64, _buffer: &[u8]) -> Result<usize> {
|
||||
println!("DiskEfi::write_at 0x{:X} not implemented", block);
|
||||
Err(Error::new(EIO))
|
||||
}
|
||||
|
||||
fn size(&mut self) -> Result<u64> {
|
||||
println!("DiskEfi::size not implemented");
|
||||
Err(Error::new(EIO))
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,41 @@
|
||||
use std::proto::Protocol;
|
||||
use uefi::graphics::GraphicsOutput;
|
||||
use uefi::guid::{GRAPHICS_OUTPUT_PROTOCOL_GUID, Guid};
|
||||
|
||||
pub struct Output(pub &'static mut GraphicsOutput);
|
||||
|
||||
impl Protocol<GraphicsOutput> for Output {
|
||||
fn guid() -> Guid {
|
||||
GRAPHICS_OUTPUT_PROTOCOL_GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut GraphicsOutput) -> Self {
|
||||
Output(inner)
|
||||
}
|
||||
}
|
||||
|
||||
const EDID_ACTIVE_PROTOCOL_GUID: Guid = Guid(
|
||||
0xbd8c1056,
|
||||
0x9f36,
|
||||
0x44ec,
|
||||
[0x92, 0xa8, 0xa6, 0x33, 0x7f, 0x81, 0x79, 0x86],
|
||||
);
|
||||
|
||||
#[allow(non_snake_case)]
|
||||
#[repr(C)]
|
||||
pub struct EdidActiveProtocol {
|
||||
pub SizeOfEdid: u32,
|
||||
pub Edid: *const u8,
|
||||
}
|
||||
|
||||
pub struct EdidActive(pub &'static mut EdidActiveProtocol);
|
||||
|
||||
impl Protocol<EdidActiveProtocol> for EdidActive {
|
||||
fn guid() -> Guid {
|
||||
EDID_ACTIVE_PROTOCOL_GUID
|
||||
}
|
||||
|
||||
fn new(inner: &'static mut EdidActiveProtocol) -> Self {
|
||||
EdidActive(inner)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,125 @@
|
||||
use crate::Os;
|
||||
use alloc::vec::Vec;
|
||||
use byteorder::BE;
|
||||
use byteorder::ByteOrder;
|
||||
use core::slice;
|
||||
use fdt::Fdt;
|
||||
use uefi::guid::DEVICE_TREE_GUID;
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
use uefi::{
|
||||
guid::SMBIOS3_TABLE_GUID,
|
||||
status::{Result, Status},
|
||||
};
|
||||
|
||||
pub static mut DEV_MEM_AREA: Vec<(usize, usize)> = Vec::new();
|
||||
|
||||
pub unsafe fn is_in_dev_mem_region(addr: usize) -> bool {
|
||||
#[allow(static_mut_refs)]
|
||||
unsafe {
|
||||
if DEV_MEM_AREA.is_empty() {
|
||||
return false;
|
||||
}
|
||||
for item in DEV_MEM_AREA.iter() {
|
||||
if (addr >= item.0) && (addr < item.0 + item.1) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
unsafe fn get_dev_mem_region(fdt: &Fdt) {
|
||||
unsafe {
|
||||
let Some(soc) = fdt.find_node("/soc") else {
|
||||
return;
|
||||
};
|
||||
let Some(ranges) = soc.ranges() else {
|
||||
return;
|
||||
};
|
||||
let cell_sizes = soc.cell_sizes();
|
||||
for chunk in ranges {
|
||||
let child_bus_addr = chunk.child_bus_address;
|
||||
let parent_bus_addr = chunk.parent_bus_address;
|
||||
let addr_size = chunk.size;
|
||||
println!(
|
||||
"dev mem 0x{:08x} 0x{:08x} 0x{:08x}",
|
||||
child_bus_addr, parent_bus_addr, addr_size
|
||||
);
|
||||
#[allow(static_mut_refs)]
|
||||
DEV_MEM_AREA.push((parent_bus_addr as usize, addr_size as usize));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_dtb(os: &impl Os, address: *const u8) -> Option<(u64, u64)> {
|
||||
unsafe {
|
||||
if let Ok(fdt) = fdt::Fdt::from_ptr(address) {
|
||||
let mut rsdps_area = Vec::new();
|
||||
//println!("DTB model = {}", fdt.root().model());
|
||||
get_dev_mem_region(&fdt);
|
||||
let length = fdt.total_size();
|
||||
let align = 8;
|
||||
rsdps_area.extend(core::slice::from_raw_parts(address, length));
|
||||
rsdps_area.resize(((rsdps_area.len() + (align - 1)) / align) * align, 0u8);
|
||||
let size = rsdps_area.len();
|
||||
let base = os.alloc_zeroed_page_aligned(size);
|
||||
slice::from_raw_parts_mut(base, size).copy_from_slice(&rsdps_area);
|
||||
Some((base as u64, size as u64))
|
||||
} else {
|
||||
println!("Failed to parse DTB");
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
fn find_smbios3_system(address: *const u8) -> Result<dmidecode::System<'static>> {
|
||||
unsafe {
|
||||
let smb = core::slice::from_raw_parts(address, 24);
|
||||
if let Ok(smbios) = dmidecode::EntryPoint::search(smb) {
|
||||
let smb_structure_data = core::slice::from_raw_parts(
|
||||
smbios.smbios_address() as *const u8,
|
||||
smbios.smbios_len() as usize,
|
||||
);
|
||||
for structure in smbios.structures(smb_structure_data) {
|
||||
if let Ok(sval) = structure {
|
||||
//println!("SMBIOS: {:#?}", sval);
|
||||
if let dmidecode::Structure::System(buf) = sval {
|
||||
return Ok(buf);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(Status::NOT_FOUND)
|
||||
}
|
||||
|
||||
pub(crate) fn find_dtb(os: &impl Os) -> Option<(u64, u64)> {
|
||||
let cfg_tables = std::system_table().config_tables();
|
||||
for cfg_table in cfg_tables.iter() {
|
||||
if cfg_table.VendorGuid == DEVICE_TREE_GUID {
|
||||
let addr = cfg_table.VendorTable;
|
||||
return parse_dtb(os, addr as *const u8);
|
||||
}
|
||||
}
|
||||
|
||||
/* This hack is no longer needed, but can be re-enabled for testing
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
for cfg_table in cfg_tables.iter() {
|
||||
if cfg_table.VendorGuid == SMBIOS3_TABLE_GUID {
|
||||
let addr = cfg_table.VendorTable;
|
||||
if let Ok(sys) = find_smbios3_system(addr as *const u8) {
|
||||
let get_dtb_addr = match (sys.manufacturer, sys.version) {
|
||||
("QEMU", version) if version.starts_with("virt") => Some(0x4000_0000 as usize),
|
||||
_ => None,
|
||||
};
|
||||
if let Some(dtb_addr) = get_dtb_addr {
|
||||
return parse_dtb(os, dtb_addr as *const u8);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
None
|
||||
}
|
||||
@@ -0,0 +1,141 @@
|
||||
use alloc::vec;
|
||||
use alloc::vec::Vec;
|
||||
use core::{mem, ptr};
|
||||
use uefi::memory::{MemoryDescriptor, MemoryType};
|
||||
|
||||
use crate::area_add;
|
||||
use crate::os::{OsMemoryEntry, OsMemoryKind};
|
||||
|
||||
use super::status_to_result;
|
||||
|
||||
pub struct MemoryMapIter {
|
||||
map: Vec<u8>,
|
||||
map_key: usize,
|
||||
descriptor_size: usize,
|
||||
descriptor_version: u32,
|
||||
i: usize,
|
||||
}
|
||||
|
||||
impl MemoryMapIter {
|
||||
pub fn new() -> Self {
|
||||
let uefi = std::system_table();
|
||||
|
||||
let mut map = vec![0; 65536];
|
||||
let mut map_size = map.len();
|
||||
let mut map_key = 0;
|
||||
let mut descriptor_size = 0;
|
||||
let mut descriptor_version = 0;
|
||||
status_to_result((uefi.BootServices.GetMemoryMap)(
|
||||
&mut map_size,
|
||||
map.as_mut_ptr() as *mut MemoryDescriptor,
|
||||
&mut map_key,
|
||||
&mut descriptor_size,
|
||||
&mut descriptor_version,
|
||||
))
|
||||
.expect("Failed to get UEFI memory map");
|
||||
|
||||
// Ensure descriptor size is usable
|
||||
assert!(descriptor_size >= mem::size_of::<MemoryDescriptor>());
|
||||
|
||||
// Ensure descriptor version is supported
|
||||
assert_eq!(descriptor_version, 1);
|
||||
|
||||
// Reduce map size to returned value
|
||||
map.truncate(map_size);
|
||||
|
||||
Self {
|
||||
map,
|
||||
map_key,
|
||||
descriptor_size,
|
||||
descriptor_version,
|
||||
i: 0,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn exit_boot_services(mut self) {
|
||||
let handle = std::handle();
|
||||
let uefi = std::system_table();
|
||||
|
||||
// We are writing to the memory map that will be passed to
|
||||
// SetVirtualAddressMap before ExitBootServices as on some firmware
|
||||
// EfiLoaderData memory regions like this one are marked as read-only
|
||||
// after ExitBootServices
|
||||
for i in 0..self.map.len() / self.descriptor_size {
|
||||
let descriptor_ptr = unsafe { self.map.as_mut_ptr().add(i * self.descriptor_size) };
|
||||
let descriptor = unsafe { &mut *(descriptor_ptr as *mut MemoryDescriptor) };
|
||||
|
||||
// Map all memory regions even when not marked as EFI_MEMORY_RUNTIME
|
||||
// as some firmware uses memory regions not marked as
|
||||
// EFI_MEMORY_RUNTIME in runtime services. Linux has a list of
|
||||
// exactly which memory regions need to be mapped, but for simplicity
|
||||
// we are mapping all regions here.
|
||||
|
||||
// Identity map all memory regions as some firmware fails to update
|
||||
// all pointers in SetVirtualAddressMap.
|
||||
|
||||
descriptor.VirtualStart.0 = descriptor.PhysicalStart.0;
|
||||
}
|
||||
|
||||
status_to_result((uefi.BootServices.ExitBootServices)(handle, self.map_key))
|
||||
.expect("Failed to exit UEFI boot services");
|
||||
|
||||
// Runtime services must be called with interrupts disabled
|
||||
super::arch::disable_interrupts();
|
||||
|
||||
status_to_result((uefi.RuntimeServices.SetVirtualAddressMap)(
|
||||
self.map.len(),
|
||||
self.descriptor_size,
|
||||
self.descriptor_version,
|
||||
self.map.as_ptr() as *const MemoryDescriptor,
|
||||
))
|
||||
.expect("Failed to set UEFI runtime services virtual address map");
|
||||
|
||||
// After ExitBootServices, GlobalAlloc::dealloc() is not allowed anymore
|
||||
// as it uses boot services.
|
||||
mem::forget(self);
|
||||
}
|
||||
}
|
||||
|
||||
impl Iterator for MemoryMapIter {
|
||||
type Item = OsMemoryEntry;
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
if self.i < self.map.len() / self.descriptor_size {
|
||||
let descriptor_ptr = unsafe { self.map.as_ptr().add(self.i * self.descriptor_size) };
|
||||
self.i += 1;
|
||||
|
||||
let descriptor = unsafe { ptr::read(descriptor_ptr as *const MemoryDescriptor) };
|
||||
let descriptor_type: MemoryType = unsafe { mem::transmute(descriptor.Type) };
|
||||
|
||||
Some(OsMemoryEntry {
|
||||
base: descriptor.PhysicalStart.0,
|
||||
//TODO: do not hard code page size
|
||||
size: descriptor.NumberOfPages * 4096,
|
||||
kind: match descriptor_type {
|
||||
MemoryType::EfiLoaderCode
|
||||
| MemoryType::EfiLoaderData
|
||||
| MemoryType::EfiBootServicesCode
|
||||
| MemoryType::EfiBootServicesData
|
||||
| MemoryType::EfiConventionalMemory => OsMemoryKind::Free,
|
||||
//TODO: mark ACPI memory as reclaim
|
||||
_ => OsMemoryKind::Reserved,
|
||||
},
|
||||
})
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub unsafe fn memory_map() -> MemoryMapIter {
|
||||
let mut iter = MemoryMapIter::new();
|
||||
|
||||
// Using next to avoid consuming iterator
|
||||
while let Some(entry) = iter.next() {
|
||||
area_add(entry);
|
||||
}
|
||||
|
||||
// Rewind iterator
|
||||
iter.i = 0;
|
||||
|
||||
iter
|
||||
}
|
||||
@@ -0,0 +1,396 @@
|
||||
use alloc::vec::Vec;
|
||||
use core::{cell::RefCell, mem, ptr, slice};
|
||||
use std::proto::Protocol;
|
||||
use uefi::{
|
||||
Handle,
|
||||
boot::LocateSearchType,
|
||||
memory::MemoryType,
|
||||
reset::ResetType,
|
||||
status::{Result, Status},
|
||||
system::SystemTable,
|
||||
text::TextInputKey,
|
||||
};
|
||||
|
||||
use crate::os::{Os, OsHwDesc, OsKey, OsVideoMode};
|
||||
|
||||
use self::{
|
||||
device::{device_path_to_string, disk_device_priority},
|
||||
disk::DiskOrFileEfi,
|
||||
display::{EdidActive, Output},
|
||||
video_mode::VideoModeIter,
|
||||
};
|
||||
|
||||
mod acpi;
|
||||
mod arch;
|
||||
mod device;
|
||||
mod disk;
|
||||
mod display;
|
||||
#[cfg(any(target_arch = "aarch64", target_arch = "riscv64"))]
|
||||
pub mod dtb;
|
||||
mod memory_map;
|
||||
mod video_mode;
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
pub use arch::efi_get_boot_hartid;
|
||||
|
||||
pub(crate) fn page_size() -> usize {
|
||||
// EDK2 always uses 4096 as the page size
|
||||
4096
|
||||
}
|
||||
|
||||
pub(crate) fn alloc_zeroed_page_aligned(size: usize) -> *mut u8 {
|
||||
assert!(size != 0);
|
||||
|
||||
let page_size = page_size();
|
||||
let pages = size.div_ceil(page_size);
|
||||
|
||||
let ptr = {
|
||||
// Max address mapped by src/arch paging code (8 GiB)
|
||||
let mut ptr = 0x2_0000_0000;
|
||||
status_to_result((std::system_table().BootServices.AllocatePages)(
|
||||
1, // AllocateMaxAddress
|
||||
MemoryType::EfiRuntimeServicesData, // Keeps this memory out of free space list
|
||||
pages,
|
||||
&mut ptr,
|
||||
))
|
||||
.unwrap();
|
||||
ptr as *mut u8
|
||||
};
|
||||
|
||||
assert!(!ptr.is_null());
|
||||
unsafe { ptr::write_bytes(ptr, 0, pages * page_size) };
|
||||
ptr
|
||||
}
|
||||
|
||||
pub struct OsEfi {
|
||||
st: &'static SystemTable,
|
||||
outputs: RefCell<Vec<(Output, Option<EdidActive>)>>,
|
||||
}
|
||||
|
||||
impl OsEfi {
|
||||
pub fn new() -> Self {
|
||||
let st = std::system_table();
|
||||
let mut outputs = Vec::<(Output, Option<EdidActive>)>::new();
|
||||
{
|
||||
let guid = Output::guid();
|
||||
let mut handles = Vec::with_capacity(256);
|
||||
let mut len = handles.capacity() * mem::size_of::<Handle>();
|
||||
match status_to_result((st.BootServices.LocateHandle)(
|
||||
LocateSearchType::ByProtocol,
|
||||
&guid,
|
||||
ptr::null(),
|
||||
&mut len,
|
||||
handles.as_mut_ptr(),
|
||||
)) {
|
||||
Ok(_) => {
|
||||
unsafe {
|
||||
handles.set_len(len / mem::size_of::<Handle>());
|
||||
}
|
||||
'handles: for handle in handles {
|
||||
//TODO: do we have to query all modes to get good edid?
|
||||
match Output::handle_protocol(handle) {
|
||||
Ok(output) => {
|
||||
log::debug!(
|
||||
"Output {:?} at {:x}",
|
||||
handle,
|
||||
output.0.Mode.FrameBufferBase
|
||||
);
|
||||
|
||||
if output.0.Mode.FrameBufferBase == 0 {
|
||||
log::debug!("Skipping output with frame buffer base of 0");
|
||||
continue 'handles;
|
||||
}
|
||||
|
||||
for other_output in outputs.iter() {
|
||||
if output.0.Mode.FrameBufferBase
|
||||
== other_output.0.0.Mode.FrameBufferBase
|
||||
{
|
||||
log::debug!(
|
||||
"Skipping output with frame buffer base matching another output"
|
||||
);
|
||||
continue 'handles;
|
||||
}
|
||||
}
|
||||
|
||||
outputs.push((
|
||||
output,
|
||||
match EdidActive::handle_protocol(handle) {
|
||||
Ok(efi_edid) => Some(efi_edid),
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to get EFI EDID from handle {:?}: {:?}",
|
||||
handle,
|
||||
err
|
||||
);
|
||||
None
|
||||
}
|
||||
},
|
||||
));
|
||||
}
|
||||
Err(err) => {
|
||||
log::warn!(
|
||||
"Failed to get Output from handle {:?}: {:?}",
|
||||
handle,
|
||||
err
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(err) => {
|
||||
log::warn!("Failed to locate Outputs: {:?}", err);
|
||||
}
|
||||
}
|
||||
}
|
||||
Self {
|
||||
st,
|
||||
outputs: RefCell::new(outputs),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Os for OsEfi {
|
||||
type D = DiskOrFileEfi;
|
||||
type V = VideoModeIter;
|
||||
|
||||
#[cfg(target_arch = "aarch64")]
|
||||
fn name(&self) -> &str {
|
||||
"aarch64/UEFI"
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
fn name(&self) -> &str {
|
||||
"x86_64/UEFI"
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "riscv64")]
|
||||
fn name(&self) -> &str {
|
||||
"riscv64/UEFI"
|
||||
}
|
||||
|
||||
fn alloc_zeroed_page_aligned(&self, size: usize) -> *mut u8 {
|
||||
alloc_zeroed_page_aligned(size)
|
||||
}
|
||||
|
||||
fn page_size(&self) -> usize {
|
||||
page_size()
|
||||
}
|
||||
|
||||
fn filesystem(
|
||||
&self,
|
||||
password_opt: Option<&[u8]>,
|
||||
) -> syscall::Result<redoxfs::FileSystem<DiskOrFileEfi>> {
|
||||
// Search for RedoxFS on disks in prioritized order
|
||||
println!("Looking for RedoxFS:");
|
||||
for device in disk_device_priority() {
|
||||
if let Some(file_path) = device.file_path {
|
||||
log::debug!(
|
||||
" - {}\\{}",
|
||||
device_path_to_string(device.device_path.0),
|
||||
file_path
|
||||
);
|
||||
} else {
|
||||
log::debug!(" - {}", device_path_to_string(device.device_path.0));
|
||||
}
|
||||
|
||||
let block = device.partition_offset / redoxfs::BLOCK_SIZE;
|
||||
|
||||
match redoxfs::FileSystem::open(device.disk, password_opt, Some(block), false) {
|
||||
Ok(ok) => return Ok(ok),
|
||||
Err(err) => match err.errno {
|
||||
// Ignore header not found error
|
||||
syscall::ENOENT => (),
|
||||
// Print any other errors
|
||||
_ => {
|
||||
log::warn!("BlockIo error: {:?}", err);
|
||||
}
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
log::warn!("No RedoxFS partitions found");
|
||||
Err(syscall::Error::new(syscall::ENOENT))
|
||||
}
|
||||
|
||||
fn hwdesc(&self) -> OsHwDesc {
|
||||
//TODO: if both DTB and ACPI are found, we should probably let the OS choose what to use?
|
||||
|
||||
// For now we will prefer DTB on platforms that have it
|
||||
#[cfg(any(target_arch = "aarch64", target_arch = "riscv64"))]
|
||||
if let Some((addr, size)) = dtb::find_dtb(self) {
|
||||
return OsHwDesc::DeviceTree(addr, size);
|
||||
}
|
||||
|
||||
if let Some((addr, size)) = acpi::find_acpi_table_pointers(self) {
|
||||
return OsHwDesc::Acpi(addr, size);
|
||||
}
|
||||
|
||||
OsHwDesc::NotFound
|
||||
}
|
||||
|
||||
fn video_outputs(&self) -> usize {
|
||||
self.outputs.borrow().len()
|
||||
}
|
||||
|
||||
fn video_modes(&self, output_i: usize) -> VideoModeIter {
|
||||
let output_opt = match self.outputs.borrow_mut().get_mut(output_i) {
|
||||
Some(output) => unsafe {
|
||||
// Hack to enable clone
|
||||
let ptr = output.0.0 as *mut _;
|
||||
Some(Output::new(&mut *ptr))
|
||||
},
|
||||
None => None,
|
||||
};
|
||||
VideoModeIter::new(output_opt)
|
||||
}
|
||||
|
||||
fn set_video_mode(&self, output_i: usize, mode: &mut OsVideoMode) {
|
||||
//TODO: return error?
|
||||
let mut outputs = self.outputs.borrow_mut();
|
||||
let (output, _efi_edid_opt) = &mut outputs[output_i];
|
||||
status_to_result((output.0.SetMode)(output.0, mode.id)).unwrap();
|
||||
|
||||
// Update with actual mode information
|
||||
mode.width = output.0.Mode.Info.HorizontalResolution;
|
||||
mode.height = output.0.Mode.Info.VerticalResolution;
|
||||
mode.base = output.0.Mode.FrameBufferBase as u64;
|
||||
}
|
||||
|
||||
fn best_resolution(&self, output_i: usize) -> Option<(u32, u32)> {
|
||||
let mut outputs = self.outputs.borrow_mut();
|
||||
let (output, efi_edid_opt) = outputs.get_mut(output_i)?;
|
||||
|
||||
if let Some(efi_edid) = efi_edid_opt {
|
||||
let edid =
|
||||
unsafe { slice::from_raw_parts(efi_edid.0.Edid, efi_edid.0.SizeOfEdid as usize) };
|
||||
|
||||
if edid.len() > 0x3D {
|
||||
return Some((
|
||||
(edid[0x38] as u32) | (((edid[0x3A] as u32) & 0xF0) << 4),
|
||||
(edid[0x3B] as u32) | (((edid[0x3D] as u32) & 0xF0) << 4),
|
||||
));
|
||||
} else {
|
||||
log::warn!("EFI EDID too small: {}", edid.len());
|
||||
}
|
||||
}
|
||||
|
||||
// Fallback to the current output resolution
|
||||
Some((
|
||||
output.0.Mode.Info.HorizontalResolution,
|
||||
output.0.Mode.Info.VerticalResolution,
|
||||
))
|
||||
}
|
||||
|
||||
fn get_key(&self) -> OsKey {
|
||||
//TODO: do not unwrap
|
||||
|
||||
let mut index = 0;
|
||||
status_to_result((self.st.BootServices.WaitForEvent)(
|
||||
1,
|
||||
&self.st.ConsoleIn.WaitForKey,
|
||||
&mut index,
|
||||
))
|
||||
.unwrap();
|
||||
|
||||
let mut key = TextInputKey {
|
||||
ScanCode: 0,
|
||||
UnicodeChar: 0,
|
||||
};
|
||||
status_to_result((self.st.ConsoleIn.ReadKeyStroke)(
|
||||
self.st.ConsoleIn,
|
||||
&mut key,
|
||||
))
|
||||
.unwrap();
|
||||
|
||||
match key.ScanCode {
|
||||
0 => match key.UnicodeChar {
|
||||
8 => OsKey::Backspace,
|
||||
13 => OsKey::Enter,
|
||||
w => match char::from_u32(w as u32) {
|
||||
Some(c) => OsKey::Char(c),
|
||||
None => OsKey::Other,
|
||||
},
|
||||
},
|
||||
1 => OsKey::Up,
|
||||
2 => OsKey::Down,
|
||||
3 => OsKey::Right,
|
||||
4 => OsKey::Left,
|
||||
8 => OsKey::Delete,
|
||||
_ => OsKey::Other,
|
||||
}
|
||||
}
|
||||
|
||||
fn clear_text(&self) {
|
||||
//TODO: why does this sometimes return InvalidParameter, but otherwise appear to work?
|
||||
let _ = status_to_result((self.st.ConsoleOut.ClearScreen)(self.st.ConsoleOut));
|
||||
}
|
||||
|
||||
fn get_text_position(&self) -> (usize, usize) {
|
||||
(
|
||||
self.st.ConsoleOut.Mode.CursorColumn as usize,
|
||||
self.st.ConsoleOut.Mode.CursorRow as usize,
|
||||
)
|
||||
}
|
||||
|
||||
fn set_text_position(&self, x: usize, y: usize) {
|
||||
// Ignore error because Tow-Boot appears to not implement this
|
||||
let _ = status_to_result((self.st.ConsoleOut.SetCursorPosition)(
|
||||
self.st.ConsoleOut,
|
||||
x,
|
||||
y,
|
||||
));
|
||||
}
|
||||
|
||||
fn set_text_highlight(&self, highlight: bool) {
|
||||
let attr = if highlight { 0x70 } else { 0x07 };
|
||||
status_to_result((self.st.ConsoleOut.SetAttribute)(self.st.ConsoleOut, attr)).unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
fn status_to_result(status: Status) -> Result<usize> {
|
||||
match status {
|
||||
Status(ok) if status.is_success() => Ok(ok),
|
||||
err => Err(err),
|
||||
}
|
||||
}
|
||||
|
||||
fn set_max_mode(output: &uefi::text::TextOutput) -> Result<()> {
|
||||
let mut max_i = None;
|
||||
let mut max_w = 0;
|
||||
let mut max_h = 0;
|
||||
|
||||
for i in 0..output.Mode.MaxMode as usize {
|
||||
let mut w = 0;
|
||||
let mut h = 0;
|
||||
if (output.QueryMode)(output, i, &mut w, &mut h).is_success() {
|
||||
if w >= max_w && h >= max_h {
|
||||
max_i = Some(i);
|
||||
max_w = w;
|
||||
max_h = h;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(i) = max_i {
|
||||
status_to_result((output.SetMode)(output, i))?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[unsafe(no_mangle)]
|
||||
pub extern "C" fn main() -> Status {
|
||||
let uefi = std::system_table();
|
||||
|
||||
let _ = (uefi.BootServices.SetWatchdogTimer)(0, 0, 0, ptr::null());
|
||||
|
||||
if let Err(err) = set_max_mode(uefi.ConsoleOut) {
|
||||
println!("Failed to set max mode: {:?}", err);
|
||||
}
|
||||
|
||||
if let Err(err) = arch::main() {
|
||||
panic!("App error: {:?}", err);
|
||||
}
|
||||
|
||||
(uefi.RuntimeServices.ResetSystem)(ResetType::Cold, Status(0), 0, ptr::null());
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
use core::ptr;
|
||||
use log::error;
|
||||
use uefi::status::Status;
|
||||
|
||||
use crate::os::OsVideoMode;
|
||||
use crate::os::uefi::display::Output;
|
||||
|
||||
pub struct VideoModeIter {
|
||||
output_opt: Option<Output>,
|
||||
i: u32,
|
||||
}
|
||||
|
||||
impl VideoModeIter {
|
||||
pub fn new(output_opt: Option<Output>) -> Self {
|
||||
Self { output_opt, i: 0 }
|
||||
}
|
||||
}
|
||||
|
||||
impl Iterator for VideoModeIter {
|
||||
type Item = OsVideoMode;
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
if let Some(ref mut output) = self.output_opt {
|
||||
while self.i < output.0.Mode.MaxMode {
|
||||
let id = self.i;
|
||||
self.i += 1;
|
||||
|
||||
let mut mode_ptr = ::core::ptr::null_mut();
|
||||
let mut mode_size = 0;
|
||||
match (output.0.QueryMode)(output.0, id, &mut mode_size, &mut mode_ptr) {
|
||||
Status::SUCCESS => (),
|
||||
err => {
|
||||
error!("Failed to read mode {}: {:?}", id, err);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
//TODO: ensure mode_size is set correctly
|
||||
let mode = unsafe { ptr::read(mode_ptr) };
|
||||
|
||||
let width = mode.HorizontalResolution;
|
||||
let height = mode.VerticalResolution;
|
||||
let stride = mode.PixelsPerScanLine;
|
||||
|
||||
return Some(OsVideoMode {
|
||||
id,
|
||||
width,
|
||||
height,
|
||||
stride,
|
||||
// Base is retrieved later by setting the mode
|
||||
base: 0,
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
None
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,142 @@
|
||||
use bitflags::bitflags;
|
||||
use core::convert::TryInto;
|
||||
use core::fmt;
|
||||
use core::ptr::{addr_of, addr_of_mut};
|
||||
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
|
||||
use syscall::io::Pio;
|
||||
use syscall::io::{Io, Mmio, ReadOnly};
|
||||
|
||||
bitflags! {
|
||||
/// Interrupt enable flags
|
||||
struct IntEnFlags: u8 {
|
||||
const RECEIVED = 1;
|
||||
const SENT = 1 << 1;
|
||||
const ERRORED = 1 << 2;
|
||||
const STATUS_CHANGE = 1 << 3;
|
||||
// 4 to 7 are unused
|
||||
}
|
||||
}
|
||||
|
||||
bitflags! {
|
||||
/// Line status flags
|
||||
struct LineStsFlags: u8 {
|
||||
const INPUT_FULL = 1;
|
||||
// 1 to 4 unknown
|
||||
const OUTPUT_EMPTY = 1 << 5;
|
||||
// 6 and 7 unknown
|
||||
}
|
||||
}
|
||||
|
||||
#[allow(dead_code)]
|
||||
#[repr(C, packed)]
|
||||
pub struct SerialPort<T: Io> {
|
||||
/// Data register, read to receive, write to send
|
||||
data: T,
|
||||
/// Interrupt enable
|
||||
int_en: T,
|
||||
/// FIFO control
|
||||
fifo_ctrl: T,
|
||||
/// Line control
|
||||
line_ctrl: T,
|
||||
/// Modem control
|
||||
modem_ctrl: T,
|
||||
/// Line status
|
||||
line_sts: ReadOnly<T>,
|
||||
/// Modem status
|
||||
modem_sts: ReadOnly<T>,
|
||||
}
|
||||
|
||||
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
|
||||
impl SerialPort<Pio<u8>> {
|
||||
pub const fn new(base: u16) -> SerialPort<Pio<u8>> {
|
||||
SerialPort {
|
||||
data: Pio::new(base),
|
||||
int_en: Pio::new(base + 1),
|
||||
fifo_ctrl: Pio::new(base + 2),
|
||||
line_ctrl: Pio::new(base + 3),
|
||||
modem_ctrl: Pio::new(base + 4),
|
||||
line_sts: ReadOnly::new(Pio::new(base + 5)),
|
||||
modem_sts: ReadOnly::new(Pio::new(base + 6)),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl SerialPort<Mmio<u32>> {
|
||||
pub unsafe fn new(base: usize) -> &'static mut SerialPort<Mmio<u32>> {
|
||||
unsafe { &mut *(base as *mut Self) }
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Io> SerialPort<T>
|
||||
where
|
||||
T::Value: From<u8> + TryInto<u8>,
|
||||
{
|
||||
pub fn init(&mut self) {
|
||||
unsafe {
|
||||
//TODO: Cleanup
|
||||
// FIXME: Fix UB if unaligned
|
||||
(*addr_of_mut!(self.int_en)).write(0x00.into());
|
||||
(*addr_of_mut!(self.line_ctrl)).write(0x80.into());
|
||||
(*addr_of_mut!(self.data)).write(0x01.into());
|
||||
(*addr_of_mut!(self.int_en)).write(0x00.into());
|
||||
(*addr_of_mut!(self.line_ctrl)).write(0x03.into());
|
||||
(*addr_of_mut!(self.fifo_ctrl)).write(0xC7.into());
|
||||
(*addr_of_mut!(self.modem_ctrl)).write(0x0B.into());
|
||||
(*addr_of_mut!(self.int_en)).write(0x01.into());
|
||||
}
|
||||
}
|
||||
|
||||
fn line_sts(&self) -> LineStsFlags {
|
||||
LineStsFlags::from_bits_truncate(
|
||||
(unsafe { &*addr_of!(self.line_sts) }.read() & 0xFF.into())
|
||||
.try_into()
|
||||
.unwrap_or(0),
|
||||
)
|
||||
}
|
||||
|
||||
pub fn receive(&mut self) -> Option<u8> {
|
||||
if self.line_sts().contains(LineStsFlags::INPUT_FULL) {
|
||||
Some(
|
||||
(unsafe { &*addr_of!(self.data) }.read() & 0xFF.into())
|
||||
.try_into()
|
||||
.unwrap_or(0),
|
||||
)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
pub fn send(&mut self, data: u8) {
|
||||
while !self.line_sts().contains(LineStsFlags::OUTPUT_EMPTY) {}
|
||||
unsafe { &mut *addr_of_mut!(self.data) }.write(data.into())
|
||||
}
|
||||
|
||||
pub fn write(&mut self, buf: &[u8]) {
|
||||
for &b in buf {
|
||||
match b {
|
||||
8 | 0x7F => {
|
||||
self.send(8);
|
||||
self.send(b' ');
|
||||
self.send(8);
|
||||
}
|
||||
b'\n' => {
|
||||
self.send(b'\r');
|
||||
self.send(b'\n');
|
||||
}
|
||||
_ => {
|
||||
self.send(b);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Io> fmt::Write for SerialPort<T>
|
||||
where
|
||||
T::Value: From<u8> + TryInto<u8>,
|
||||
{
|
||||
fn write_str(&mut self, s: &str) -> Result<(), fmt::Error> {
|
||||
self.write(s.as_bytes());
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,25 @@
|
||||
{
|
||||
"arch": "aarch64",
|
||||
"data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
|
||||
"default-hidden-visibility": true,
|
||||
"emit-debug-gdb-scripts": false,
|
||||
"exe-suffix": ".efi",
|
||||
"executables": true,
|
||||
"is-like-windows": true,
|
||||
"linker": "rust-lld",
|
||||
"linker-flavor": "lld-link",
|
||||
"llvm-target": "aarch64-pc-windows-msvc",
|
||||
"os": "uefi",
|
||||
"panic-strategy": "abort",
|
||||
"pre-link-args": {
|
||||
"lld-link": [
|
||||
"/subsystem:EFI_Application",
|
||||
"/entry:efi_main",
|
||||
"/machine:arm64"
|
||||
]
|
||||
},
|
||||
"stack_probes": true,
|
||||
"target-c-int-width": 32,
|
||||
"target-endian": "little",
|
||||
"target-pointer-width": 64
|
||||
}
|
||||
@@ -0,0 +1,25 @@
|
||||
{
|
||||
"arch": "riscv64",
|
||||
"code-model": "medium",
|
||||
"cpu": "generic-rv64",
|
||||
"data-layout": "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128",
|
||||
"emit-debug-gdb-scripts": false,
|
||||
"exe-suffix": ".elf",
|
||||
"executables": true,
|
||||
"linker-flavor": "gnu-cc",
|
||||
"linker": "riscv64-unknown-redox-gcc",
|
||||
"llvm-abiname": "lp64d",
|
||||
"features": "+m,+a,+f,+d,+c",
|
||||
"llvm-target": "riscv64-unknown-none-elf",
|
||||
"os": "none",
|
||||
"metadata": {
|
||||
"description": null,
|
||||
"host_tools": null,
|
||||
"std": null,
|
||||
"tier": null
|
||||
},
|
||||
"panic-strategy": "abort",
|
||||
"target-c-int-width": 32,
|
||||
"target-endian": "little",
|
||||
"target-pointer-width": 64
|
||||
}
|
||||
@@ -0,0 +1,29 @@
|
||||
{
|
||||
"llvm-target": "i686-unknown-none",
|
||||
"target-endian": "little",
|
||||
"target-pointer-width": 32,
|
||||
"target-c-int-width": 32,
|
||||
"data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
|
||||
"arch": "x86",
|
||||
"os": "none",
|
||||
"env": "",
|
||||
"vendor": "unknown",
|
||||
"linker-flavor": "gcc",
|
||||
"panic-strategy": "abort",
|
||||
"pre-link-args": {
|
||||
"gcc": ["-m32", "-nostdlib", "-static"]
|
||||
},
|
||||
"features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float",
|
||||
"rustc-abi": "x86-softfloat",
|
||||
"dynamic-linking": false,
|
||||
"executables": false,
|
||||
"relocation-model": "static",
|
||||
"code-model": "large",
|
||||
"disable-redzone": true,
|
||||
"frame-pointer": "always",
|
||||
"exe-suffix": "",
|
||||
"has-rpath": false,
|
||||
"no-default-libraries": true,
|
||||
"position-independent-executables": false,
|
||||
"tls-model": "global-dynamic"
|
||||
}
|
||||
Reference in New Issue
Block a user