Commit Graph

1458 Commits

Author SHA1 Message Date
Jeremy Soller 939c9567ee Support 16550 uarts for aarch64 debug output 2024-10-29 14:06:00 -06:00
Jeremy Soller 161e578f29 Use null driver for unknown IRQ controllers on aarch64 2024-10-29 08:01:38 -06:00
Jeremy Soller 380532aea5 Improve reliability of aarch64 startup code 2024-10-29 08:00:57 -06:00
Jeremy Soller 15b0133b7b Add arm,gic-400 support to GIC driver 2024-10-29 08:00:17 -06:00
Jeremy Soller e4e55103ad Remove old aarch64 asm code 2024-10-29 07:59:12 -06:00
Arthur Paulino ea0356b26a Address minor warts
* Mention the need to have `nasm` available on the PATH in the README
* Replace the deprecated `hide_parse_errors` by `show_parse_errors` in `rustfmt.toml`
* Mark unused variables in `src/scheme/proc.rs`
2024-10-27 18:14:12 -03:00
Andrey Turkin 505425bec9 Expose riscv64/aarch64 legacy irqs (requiring remapping) to the irq scheme 2024-10-22 20:26:40 +03:00
Andrey Turkin cba02a26fa Rework irqchip to support risc-v irqs, and add risc-v irq chips handling 2024-10-22 19:16:21 +03:00
Andrey Turkin 906259c024 Pull irqchip from aarch64 code into more generic place 2024-10-21 19:56:32 +03:00
Andrey Turkin 1921c6814b Initial RISC-V implementation
Has no IRQ handling yet
2024-10-20 16:24:21 +03:00
Andrey Turkin db32f5f7a3 Move some conditionally compiled code from common files into arch-gated files 2024-10-19 21:59:14 +03:00
Andrey Turkin 55041e2eeb Use a custom config flag to conditionally compile DTB-specific areas
Would be great if we could use a feature instead, but Cargo can't do target-specific defaults features
2024-10-19 21:03:43 +03:00
Andrey Turkin 0a6a90415a Refactor initial memory paging 2024-10-19 08:44:46 +03:00
James 3fbd52a212 Made a change in context to the way arrays are resized. Slight change to the logic but resize_with should be slightly more efficient 2024-10-15 21:24:32 +11:00
Ron Williams 865122e92f Fix serial console login 2024-10-10 18:45:14 +00:00
4lDO2 8d4ee26ff1 Fix profiling && + toggle support via debug scheme. 2024-10-07 10:20:51 +02:00
4lDO2 ad16b747ea Restrict auto-fcntl to non-v2 schemes. 2024-09-27 21:36:22 +02:00
IncompententPirate fc5d246b30 remove wrapper functions 2024-09-26 22:34:55 +00:00
Andrey Turkin 14eb140f7a Refactor panic stack walking 2024-09-26 19:22:21 +03:00
Andrey Turkin 755694494b Factor KernelMapper out of arch
Same implementation on all the platforms. Also remove mutable Deref as it allowed circumventing RO check
2024-09-25 21:51:39 +03:00
4lDO2 539dc5a24e Remove SYS_UMASK. 2024-09-25 19:55:39 +02:00
Andrey Turkin d08861e586 Upgrade fdt library to the very latest
The new helpers remove a lot of boilerplace. Unfortunately some rough edges still remain (in particular issue gh#12 which renders interrupts() helper useless)
2024-09-25 06:51:02 +03:00
4lDO2 71538efc06 Allow thread exit to optionally deallocate stack. 2024-09-24 19:18:23 +02:00
4lDO2 9a0192fc94 Prevent duplicate idempotent signals. 2024-09-24 19:18:23 +02:00
4lDO2 fcb2e2be3a Pass si_uid and si_pid to kill signals. 2024-09-24 19:18:23 +02:00
4lDO2 7def7ce6e3 Extend size of sig{en,de}queue payload. 2024-09-24 19:18:22 +02:00
4lDO2 54b1fbe453 Implement queued signals.
This currently needs to be done in the kernel for synchronization
reasons, but it's possible all delivery parts can later be moved to
userspace.
2024-09-24 19:18:22 +02:00
4lDO2 6d9cf30445 WIP: realtime signals 2024-09-24 19:18:20 +02:00
Andrey Turkin dbbbfcf48a Update RMM 2024-09-24 19:23:08 +03:00
4lDO2 960e79b107 Treat broken pipes as IO-capable in fevent. 2024-09-19 10:41:40 +02:00
4lDO2 ef499f81fc Support compiling for host, allowing unit tests. 2024-09-17 19:24:23 +02:00
4lDO2 a0d0eac8aa Optimally divide responsibility for borrow free.
This appears to slightly improve performance.
2024-09-14 10:49:40 +02:00
4lDO2 031fdea089 Discard empty names in root scheme getdents. 2024-09-13 15:26:24 +02:00
4lDO2 e3e05ebca8 Fix root scheme order by using indexmap (tmp). 2024-09-11 22:09:29 +02:00
4lDO2 97f60de4ef WIP: Add getdents opaque_id 2024-09-11 22:09:29 +02:00
4lDO2 339271b4d7 Add getdents syscall, and switch schemes to it. 2024-09-11 22:09:26 +02:00
Kamil Koczurek 548fd63264 tsc: calculate elapsed ticks using saturating_sub
RDTSC readouts might not actually be monotonically increasing due to
desynchronization between CPU cores, so checked_sub was causing a kernel
panic.
2024-09-10 14:16:38 +02:00
4lDO2 652cdc7ef2 Replace repr(packed) with repr(C, packed). 2024-09-08 20:56:50 +02:00
4lDO2 815ac3da4a Revert "Fix possible UB in rmm::init."
This reverts commit 4626c74b78.
2024-09-08 20:22:46 +02:00
4lDO2 4626c74b78 Fix possible UB in rmm::init.
I tested compiling the kernel with a more recent rustc, and this
triggered UB. Don't know for sure why there was an invalid entry passed
to the kernel, but it did.
2024-09-07 23:14:55 +02:00
Jeremy Soller 0c99e1bd0a Set xcr0 in all cases 2024-09-06 20:08:40 -06:00
Jeremy Soller 1c00450127 Use 64-bit versions of xsave and xrstor 2024-09-04 21:22:10 -06:00
4lDO2 09e7e66e00 Move scheme borrow unmap to cqe write. 2024-09-04 19:23:21 +02:00
Andrey Turkin a558860e88 Fix BSS sanity check
mark the canaries mutable so they go into data and bss and not in rodata
2024-09-04 10:55:20 +03:00
Andrey Turkin 7a9a5f024f Validate bootstrap memory allocation 2024-09-04 10:55:16 +03:00
Andrey Turkin ba154c0387 Fix a debug-build assertion
A range of usable memory could be small enough not to have any MAX_ORDER sized frames.
2024-09-04 10:55:11 +03:00
Andrey Turkin d2ebc7ff05 Wholesale fix of warnings
Pretty straightforward changes. This commit tries to avoid making any non-trivial fixes.
2024-09-04 10:55:01 +03:00
Jacob Lorentzon 643d7400db Implement paravirtualized KVM TSC support 2024-09-03 21:20:06 +00:00
4lDO2 441385ddb2 Always map the kernel itself using global pages.
This avoids TLB stalls after context switching, that are very visible
from flamegraphs.
2024-08-31 10:44:54 +02:00
Ron Williams 19cd3ad287 Fix APIC reference in profiling.rs 2024-08-26 21:06:47 -07:00