77400f63ee
Add a memory: file for phys-contiguous mmaps.
2023-12-15 15:14:36 +01:00
1cc5804333
Allow CPUs to take any context
2023-12-13 17:20:43 -07:00
4386e0716d
Missed change for last commit
2023-12-13 17:20:21 -07:00
fbaa4306e3
Add unblock_no_ipi function and use in context switch
2023-12-13 17:19:43 -07:00
2d065083df
Use HashMap instead of BTreeMap where possible
...
This shrinks the kernel from 905840 bytes to 862408 bytes.
2023-12-13 19:55:20 +01:00
88508a2cb7
Remove as_user_inner.
2023-12-13 11:08:12 +01:00
679c26c03b
s/Arc<dyn KernelScheme>/enum, but deref as dyn.
2023-12-13 11:08:07 +01:00
a7165f822f
Switch from the memoffset crate to the offset_of feature
...
The memoffset crate requires const_refs_to_cell to work in const
contexts. This feature has some known issues around it's semantics. The
offset_of feature however is currently on track for stabilization.
2023-12-12 20:21:31 +00:00
017702d3d2
Remove a lot of dead code
2023-12-12 15:01:29 +00:00
036a4bdee4
Replace syscall::Scheme with KernelScheme.
2023-11-15 20:00:47 +01:00
750e566a27
Get aarch64 to compile
...
Fixes enough errors to get the kernel to compile
2023-10-01 23:55:24 +02:00
5eace9997a
Compile successfully on i686 as well.
2023-09-16 10:48:25 +02:00
dde8f78903
Support XSAVE, XSAVEOPT, and AVX2.
2023-09-14 10:54:30 +02:00
38e669c807
Dynamic fsgsbase support, enable by default.
2023-09-14 09:25:30 +02:00
f028b77412
Use config.toml instead of x86_* Cargo feature.
2023-09-12 21:19:06 +02:00
f025ece614
Replace from/into with get/new when necessary.
2023-09-06 08:38:10 +02:00
45d1c256ea
Add LogicalCpuSet as a sched affinity mask.
2023-09-04 21:57:54 +02:00
3b725b2c27
Add logical CPU ID newtype, switch to u32.
2023-09-04 21:27:48 +02:00
cbd02a8489
Set relocation-model=static
2023-08-12 00:57:45 +00:00
a78d6e42f8
Stop using #[thread_local] on x86_*.
2023-08-08 12:01:42 +02:00
bdd5c954dc
Move PIT_TICKS to context::switch.
2023-08-08 12:01:42 +02:00
8f98d5b987
Extend mremap, eager mappings for real hardware.
2023-08-03 12:37:58 +02:00
c7714992f3
Fix clone_grant_using_fmap test.
2023-08-02 14:17:26 +02:00
2070fa44b7
Fix warnings.
2023-08-02 13:07:49 +02:00
05a9530ac7
Temporarily disable CoW fmaps.
2023-08-01 17:29:36 +02:00
fe88b23d09
Use a single cow zeroed page for RO maps + eager mapping.
2023-08-01 13:11:00 +02:00
ec9c24f841
WIP: aarch64
2023-07-27 19:05:33 +02:00
3cfec39b47
Pass MunmapFlags to scheme.
2023-07-25 10:52:24 +02:00
c9aa5ca851
WIP: Add SYS_MREMAP.
2023-07-25 10:52:24 +02:00
2660c3e07a
WIP: Pin fmap grants that are borrowed too.
...
This might not be the most ideal solution, since a GiB grant can be
EBUSY blocked if a single page is used by an indefinitely-blocking
UserScheme. But, the alternatives would impose lots of additional
complexity, such as increasing the PageInfo size, adding more
refcounting arrays to grants, etc.
2023-07-25 10:52:24 +02:00
e2b736140f
Make PageInfo atomic once again.
2023-07-25 10:52:24 +02:00
d58ddc35fe
Complete PageInfo cleanup.
...
This enables proper CoW ^ shared enforcement, so that e.g. acquiring a
new CoW page from already shared memory, or vice versa, will enforce
that they aren't both simultaneously.
2023-07-25 10:52:23 +02:00
0f1b5b9b6f
WIP: Make cow/shared refcounts mutually exclusive.
2023-07-25 10:52:23 +02:00
113cb5ed4e
Ensure pages cannot be both CoW and shared.
2023-07-25 10:52:23 +02:00
d3ecedefd9
Notify schemes when mmaps are unmapped.
2023-07-25 10:52:23 +02:00
02f04752e8
Use proper locks for PageInfo.
2023-07-25 10:52:23 +02:00
afa3d7dc7b
Support anonymous MAP_SHARED mmaps.
2023-07-25 10:52:23 +02:00
70b4d99c96
Implement MAP_FIXED without MAP_FIXED_NOREPLACE.
2023-07-25 10:52:23 +02:00
f0341280f7
Fix frame deallocation.
2023-07-25 10:52:23 +02:00
cbec83215a
Lazy-evaluate pages returned by fmap.
2023-07-25 10:52:22 +02:00
9182722f84
WIP: Allow listing address space grants again.
2023-07-25 10:52:22 +02:00
ba62c0606e
Pin PhysBorrowed head/tail UserScheme grants too.
2023-07-25 10:52:22 +02:00
329d60848c
WIP: Support CoW fmap.
2023-07-25 10:52:22 +02:00
b24cf821c2
Support transferring grants again.
2023-07-25 10:52:22 +02:00
55f1829e77
Call funmap if applicable.
2023-07-25 10:52:22 +02:00
4ec8712fb0
Adjust fmap offsets in Grant::extract.
2023-07-25 10:52:22 +02:00
c5eb44d968
Increase refcount for borrowed fmap too.
2023-07-25 10:52:22 +02:00
b3a6a6744a
Pin grants that are used in UserScheme.
2023-07-25 10:52:22 +02:00
954a8d00fe
Make page fault handler recursive.
...
This is probably a bad idea, but it works for now, and can only cause
problems, if grants that borrow grants that borrow grants etc., are
used.
2023-07-25 10:52:21 +02:00
da6f6a316c
Return only one grant, External, for Grant::borrow.
2023-07-25 10:52:21 +02:00
4lDO2