cd3dcf153e
Do not print interpreter
2021-12-01 08:40:11 -07:00
4f259e3589
Workaround for thread race conditions
2021-11-30 18:03:34 -07:00
515cab03eb
Fix a number of warnings
2021-11-29 20:01:27 -07:00
5f4978a6dc
Return ENOMEM rather than panicking for PML4 alloc.
2021-08-11 17:46:40 +02:00
67cc6799bd
Fix possible UB by checking for null allocating FX.
...
Namely, the global allocator API in Rust, actually only returns a null
pointer on failure, rather than wrapping it in a Result, which AllocRef
does. Since Box::from_raw(null) is direct UB, this can in theory lead to
very strange behavior.
2021-08-11 17:46:40 +02:00
465c461b60
WIP: Stop using recursive mapping.
...
Note that this is very preliminary, and I merely got my already freezing
kernel branch not to triple fault, but I would probably apply this patch
to upstream.
What is changed here, is that rather than relying on recursive mapping
for accessing page table frames, it now uses linear translation
(virt=phys+KERNEL_OFFSET). The only problem is that the paging code now
makes assumptions that the entire physical address space remains mapped,
which is not necessarily the case on x86_64 architecturally, even though
systems with RAM more than a PML4 are very rare. We'd probably lazily
(but linearly) map physical address space using huge pages.
2021-08-11 17:46:33 +02:00
87241a9d3c
Pass AT_PHDR via a grant rather than the stack.
2021-08-01 14:57:41 +02:00
3eedbeb14d
WIP: Let userspace manage fsbase/gsbase and TLS.
2021-08-01 12:09:22 +02:00
0968e4f87e
Support fsgsbase at compile time.
2021-07-31 10:12:59 +02:00
d3cf4db47b
Prerequisites for risv64 support
2021-05-12 20:23:53 -06:00
558109a9cb
Put the KPCRs in high memory, in their own PML4.
...
This also removes the need to do another semi-expensive remap when
cloning processes, since the KPCRs (for kernel TLS) are no longer stored
in the user PML4.
2021-05-06 21:21:37 +02:00
3eacbdda2a
Remove unnecessary exit() diff.
2021-05-06 19:49:58 +02:00
fd97fa80bb
Move pid back to inner scope in exit() handler.
2021-05-06 19:49:58 +02:00
9b4ce0d0cc
WIP: Fix userspace ACPI shutdown.
2021-05-06 19:49:58 +02:00
8d61c79b23
Use RMM TableKind and fix x86_64 compilation
2021-05-03 21:15:46 -06:00
2aa4d8caf5
Merge remote-tracking branch 'origin/aarch64-rebase' into riscv64
2021-05-03 20:52:59 -06:00
17c261553b
Fixes for building x86_64
2021-05-03 20:43:18 -06:00
b9448274fc
Switch to using RMM PageFlags
2021-05-03 17:28:08 -06:00
dd0616cc8f
Use RMM for TLB flushing
2021-05-03 12:42:16 -06:00
d331f72f2a
Use UTF-8 for all paths
2021-04-28 20:06:07 -06:00
8fcd375bd9
Switch Context::grants to RwLock
2021-04-28 20:04:27 -06:00
41bea0086f
Switch Context::actions to RwLock
2021-04-28 20:03:29 -06:00
83dea72a50
Switch Context::files to RwLock
2021-04-28 20:03:25 -06:00
c7aba8fdfd
Switch Context::cwd to using RwLock
2021-04-28 20:03:18 -06:00
a9bee0bbdc
Require UTF-8 for context name
2021-04-28 20:03:12 -06:00
b26c3e0ae9
Make context name a RwLock
2021-04-28 20:03:05 -06:00
f90033e0e1
Use PHYS_OFFSET instead of KERNEL_OFFSET to refer to the physmap
2021-04-13 20:38:54 -06:00
031496ff0d
Fix "Grant should not exist" errors.
...
This is done by making sure that when empty() is called on a context,
the grants Arc will be replaced with a new unused Arc, hence
decrementing the refcount. Previously this was only done when the
context was actually reaped, but since there is no guarantee as far as I
am aware about when this must happen, the grants could be completely
leaked, leading to the error.
2021-02-27 15:36:12 +01:00
c913c3be80
Use sysretq in usermode().
2021-02-15 19:53:24 +01:00
6db78cce24
Use UTF-8 for all paths
2021-02-14 13:45:03 -07:00
c19bd573b5
Switch Context::grants to RwLock
2021-02-13 13:06:13 -07:00
2611985a38
Switch Context::actions to RwLock
2021-02-13 13:01:20 -07:00
bfaf8438a1
Switch Context::files to RwLock
2021-02-13 12:57:53 -07:00
55d2467420
Switch Context::cwd to using RwLock
2021-02-13 12:24:19 -07:00
238702f7d1
Require UTF-8 for context name
2021-02-13 12:16:47 -07:00
b9f4a915ea
Make context name a RwLock
2021-02-13 11:10:21 -07:00
1e10cac3e1
aarch64: Increase storage for FP context to consider AArch64's needs
...
Brute-forcing this at present. Would be better to wrap this
conditionally for the architecture.
2021-01-28 16:51:50 +00:00
4dbfaf3ec1
Nit: Add missing close brace in code comment
2021-01-27 17:19:37 +00:00
4a215c7c2c
aarch64: exception management and clone fixups
2021-01-26 18:17:09 +00:00
78d1cd1798
syscall: process: empty: Use user-space specific page table
2021-01-21 11:53:35 +00:00
f1db56f026
aarch64: clone: Further uspace and kspace mods
2021-01-18 21:55:42 +00:00
9429032cec
aarch64: clone: Further clone_ret + tpidr_el0 fixes
2021-01-18 21:53:04 +00:00
fd0336692d
aarch64: clone: Introduce kernel and user space specific mods
...
At present these are done 'wholesale' without any regard for x86_64.
That needs to change eventually.
2021-01-18 21:50:19 +00:00
95bd8f2013
clone: Make stack manipulation arch specific
2021-01-17 10:26:49 +00:00
ae3a55f5d1
Introduce a PageTableType enum to help distinguish User and Kernel Tables
2021-01-15 09:12:30 -07:00
02c37d3fae
WIP: aarch64 rebase
2021-01-15 05:54:42 -07:00
334584b3d5
Use rmm::PhysicalAddress and rmm::VirtualAddress directly
2021-01-09 21:16:11 -07:00
f5ac405db6
Support for RMM
2020-11-27 16:49:39 +00:00
922b3d0437
Remove brk
2020-08-15 17:36:50 +02:00
da7b813fa9
Investigate why user heap isn't mapped
...
Took me way too long to spot this :D
2020-08-15 17:22:34 +02:00
Jeremy Soller