61ba2e6c8e
Fix unmap_parents
2022-08-22 18:49:32 -06:00
0d4ff5d4f3
Add functions for accessing mapper allocator
2022-08-21 13:20:44 -06:00
df733ed571
Use TableKind for most table operations
2022-08-20 13:00:48 -06:00
c5eb435d79
Match PHYS_OFFSET accross archs
2022-08-19 20:53:15 -06:00
e05868e1dc
Improve aarch64 paging instructions
2022-08-19 19:52:00 -06:00
e9950ee6da
Fix more warnings
2022-07-29 18:53:12 -06:00
23d4995e50
Fix warnings
2022-07-29 18:37:37 -06:00
5700899e9a
Merge branch 'migrate_kernel_to_rmm' into 'master'
...
Add necessary functionality for migrating kernel paging code to RMM
See merge request redox-os/rmm!6
2022-07-27 15:10:52 +00:00
9462df03e7
Add support for unmapping parents.
...
Currently, this uses a relatively naive method of simply scanning the
512 entries for the PRESENT flag. But, unless the optimizer cannot, it
can be reduced to calculating the bitwise OR of every entry and then
checking that.
If this turns out to be too slow, which it might be when unmapping lots
of pages, then we can (1) either fall back to using a counter like the
old paging code did, or even better (2) use the now-1:1 grants tree to
check if it became empty. Putting the grants code in RMM might be
suboptimal, so instead we can add "unmap_range" and have the kernel
paging code take the offset of the next grant, if any, and then possibly
unmap entire P1s/P2s/P3s -- whatever is in the page tables within that
range.
Note that I am fairly certain that method (1) was the cause of the
visually notorious orbital memory corruption bug.
2022-07-27 10:49:49 +02:00
229ae5da40
Add remaining interfaces to user RMM for user mem.
2022-07-27 10:49:49 +02:00
efc67a2012
Use wrapped flags for PageEntry.
2022-07-27 10:49:49 +02:00
fad6afa7d8
Flush on Drop, unless explicitly ignored.
2022-07-27 10:49:49 +02:00
7a209c83c9
Implement Debug for X8664Arch.
2022-07-27 10:49:49 +02:00
c847b1e2a8
Implement FrameAllocator for mutable refs of impls.
2022-07-27 10:49:49 +02:00
2f16dddf25
Add a page flusher trait.
2022-07-27 10:49:49 +02:00
0944b17983
Add initial x86 32-bit support
2022-07-26 20:13:55 -06:00
ec284ca8e3
Update rust-toolchain
2022-07-26 19:01:42 -06:00
507f7ccd4a
Merge branch 'update-toolchain-2022' into 'master'
...
Update to latest toolchain.
See merge request redox-os/rmm!5
2022-03-23 18:06:11 +00:00
e2648005ba
Update to latest toolchain.
2022-03-06 11:34:22 +01:00
37e88ff4d3
Merge branch 'virt_is_canonical' into 'master'
...
Add Arch::virt_is_valid
See merge request redox-os/rmm!4
2021-07-11 21:33:34 +00:00
6bc59e7013
Remove virt_kind, impl virt_is_valid() for riscv.
...
All there is left now is AArch64.
2021-07-08 16:06:51 +02:00
b75c329a27
Add virt_kind and virt_is_valid for emulation.
2021-07-08 13:35:51 +02:00
32caee3095
Add arch functions for checking canonical addrs.
2021-07-08 13:27:08 +02:00
c66956ca2a
Remove unused #![feature(const_fn)].
2021-06-17 18:42:03 +02:00
c81c4de223
Add method to get TableKind from VirtualAddress
2021-05-04 08:10:44 -06:00
5e47692b8d
Support more operations on PageFlags
2021-05-04 08:10:44 -06:00
2f74326384
Add riscv64 sv39 and sv48
2021-05-04 08:10:34 -06:00
c46d148e26
Fix tests for aarch64
2021-05-02 21:25:27 -06:00
7fd1218465
Merge remote-tracking branch 'origin/aarch64-rebase'
2021-04-13 19:12:48 -06:00
132d91d3aa
Fixed page flags for aarch64
2021-01-14 15:54:51 -07:00
cb6b44d69e
Use devmap offset for physmap on aarch64
2021-01-14 12:35:27 -07:00
1214f3dcdc
Add PageFlags to abstract differences between architectures
2021-01-14 10:01:36 -07:00
c5774c5529
Add TableKind for future use
2021-01-14 09:16:46 -07:00
dafd9cb3c4
Add ENTRY_FLAG_DEFAULT_PAGE and ENTRY_FLAG_DEFAULT_TABLE
2021-01-14 09:16:37 -07:00
fad48af985
WIP: aarch64 support
2021-01-13 10:47:35 -07:00
b1c7b9638d
Merge branch 'fix-repr-packed' into 'master'
...
Fix possible UB by implementing Copy and Clone manually for BuddyEntry.
See merge request redox-os/rmm!1
2020-12-20 16:08:31 +00:00
9a716604fc
Implement Copy and Clone manually for BuddyEntry.
...
This fixes a warning that may in the future become an error, about the
possibility for unaligned references, since the derive macros apparently
rely on creating references to fields. Unaligned references are direct
UB.
2020-12-20 16:36:52 +01:00
cdbeecfffe
Remove some warnings
2020-09-14 09:47:29 -06:00
936352a049
FrameCount::new function
2020-09-14 09:47:23 -06:00
8e0df608e2
Add allocator usage information
2020-09-14 09:41:56 -06:00
e94d7e7772
Rewrite buddy allocator
2020-09-14 09:41:42 -06:00
a775c9e987
Require Arch to implement Clone and Copy
2020-09-14 09:08:28 -06:00
a12be1b172
Keep track of last free page
2020-09-09 20:19:28 -06:00
f17a1b52bd
Test multi-page allocation
2020-09-09 16:02:59 -06:00
0c44dde349
Implement multi-page allocations in buddy allocator (poorly)
2020-09-09 16:02:44 -06:00
711414223b
Fix buddy map footer read address
2020-09-09 11:11:39 -06:00
fed3110ae8
Better unimplemented messages
2020-09-09 10:55:29 -06:00
811dd09de4
Remove unused function for empty buddy allocator
2020-09-08 20:20:56 -06:00
fb88d1669f
Add unmap function
2020-09-08 19:59:13 -06:00
e6d93d5743
Allow const creation of buddy allocator
2020-09-08 15:51:13 -06:00
Jeremy Soller