Commit Graph

344 Commits

Author SHA1 Message Date
bjorn3 616c7d4398 Load the bootstrap blob at 4096 instead of 0
This way the NULL page can stay unmapped and the bootstrap code can
avoid UB when reading the initfs header (which is at the start of the
bootstrap code.
2024-03-10 21:14:46 +01:00
4lDO2 1f8d7bc67c Always check shootdown reqs when locking addrsp. 2024-03-04 19:03:01 +01:00
4lDO2 3a915c7fd5 Fix lock/guard mismatch, move r#move to wrapper. 2024-03-04 19:03:00 +01:00
4lDO2 79381249a2 Implement a TLB shootdown draft. 2024-03-04 19:03:00 +01:00
4lDO2 6bf90f9eee Build the foundation for TLB shootdown. 2024-03-04 19:03:00 +01:00
4lDO2 156017a25d Refactor: wrap RwLock<AddrSpace>. 2024-03-04 19:03:00 +01:00
4lDO2 749df4c869 Fail successfully with todo! 2024-03-04 19:03:00 +01:00
Jeremy Soller 15cbb40802 Format 2024-02-28 12:10:17 -07:00
bjorn3 e08eadf64a Don't pass CallerCtx in file_op_generic
It isn't used by any of the callers.
2024-02-25 21:05:21 +01:00
bjorn3 782ec87f27 Fix UB in the locking code of context switching
The spin crate considers it UB to call force_write_unlock while there is
a threads trying to obtain a read lock on the same rwlock.

This also switches to the spinning_lot crate for the context rwlock as
it has support for a write guard keeping a reference to the rwlock using
an Arc instead of a reference.
2024-02-25 17:07:41 +01:00
bjorn3 449abb8925 Share bootstrap_mem between all archs 2024-02-25 15:53:04 +01:00
Ron Williams 9331452bdb Use RedoxPath::as_parts. redox-path from crates.io 2024-02-09 15:05:45 +00:00
Ron Williams eeee40ae0c update unlink for new path format 2024-02-01 00:50:33 -08:00
bjorn3 e5c93ae334 Fix some UB and debug assertions
The UB has been found by rustc's new UB checks with debug assertions
enabled.
2024-01-24 13:51:20 +01:00
Jeremy Soller 87ee68998c Handle new path format 2024-01-18 12:35:32 -07:00
Jeremy Soller 45f1c4e29e Add rustfmt from relibc and apply it with cargo fmt 2024-01-17 13:52:01 -07:00
4lDO2 ee3aafa1d9 Remove PhysBorrowed hacks. 2023-12-15 15:14:40 +01:00
4lDO2 52df9dd1bc Remove the AddrSpace ref when exiting, not reaping. 2023-12-15 15:14:40 +01:00
4lDO2 eda462fd11 Remove SYS_PHYSMAP. 2023-12-15 15:14:40 +01:00
4lDO2 875a130843 Remove SYS_PHYSALLOC* and SYS_PHYSFREE. 2023-12-15 15:14:40 +01:00
4lDO2 77400f63ee Add a memory: file for phys-contiguous mmaps. 2023-12-15 15:14:36 +01:00
4lDO2 10e86ea89d Hardcode global scheme IDs. 2023-12-13 11:08:11 +01:00
4lDO2 679c26c03b s/Arc<dyn KernelScheme>/enum, but deref as dyn. 2023-12-13 11:08:07 +01:00
bjorn3 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
4lDO2 036a4bdee4 Replace syscall::Scheme with KernelScheme. 2023-11-15 20:00:47 +01:00
Ron Williams 29803e7865 setrens: always ignore -1 2023-11-08 23:29:08 -08:00
4lDO2 2f2e76c0ca Inform SYS_SENDFD scheme if the fd was exclusive. 2023-10-14 14:56:40 +02:00
4lDO2 1546a4a08f Implement SYS_SENDFD and SKMSG_FOBTAINFD. 2023-10-14 12:44:38 +02:00
4lDO2 f025ece614 Replace from/into with get/new when necessary. 2023-09-06 08:38:10 +02:00
4lDO2 ad02f5cbba Remove SYS_PIPE2. 2023-09-01 17:17:15 +02:00
4lDO2 de23cd447e Fix aarch64 build. 2023-08-08 12:01:43 +02:00
4lDO2 8f98d5b987 Extend mremap, eager mappings for real hardware. 2023-08-03 12:37:58 +02:00
4lDO2 2070fa44b7 Fix warnings. 2023-08-02 13:07:49 +02:00
4lDO2 0cdfb886c0 Fix debugger for x86_64, disable sc debug. 2023-07-28 13:40:00 +02:00
4lDO2 e28fef09e3 Improve aarch64 debugger. 2023-07-28 13:23:44 +02:00
4lDO2 ec9c24f841 WIP: aarch64 2023-07-27 19:05:33 +02:00
4lDO2 885f88b777 Fix futex for non-AtomicU64-capable targets. 2023-07-27 16:44:26 +02:00
4lDO2 c9aa5ca851 WIP: Add SYS_MREMAP. 2023-07-25 10:52:24 +02:00
4lDO2 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
4lDO2 d3ecedefd9 Notify schemes when mmaps are unmapped. 2023-07-25 10:52:23 +02:00
4lDO2 afa3d7dc7b Support anonymous MAP_SHARED mmaps. 2023-07-25 10:52:23 +02:00
4lDO2 70b4d99c96 Implement MAP_FIXED without MAP_FIXED_NOREPLACE. 2023-07-25 10:52:23 +02:00
4lDO2 b3a6a6744a Pin grants that are used in UserScheme. 2023-07-25 10:52:22 +02:00
4lDO2 bf6ad5c41a Disable debugging again. 2023-07-25 10:52:21 +02:00
4lDO2 ad78dcc5a1 WIP: Rudimentary MAP_SHARED fmap implementation. 2023-07-25 10:52:21 +02:00
4lDO2 23fede5db0 Remove scheme funmap methods. 2023-07-25 10:52:20 +02:00
4lDO2 20c3adf38d WIP: Start rewriting fmap impl. 2023-07-25 10:52:20 +02:00
4lDO2 f7bffacef0 Implement Drop for AddrSpace. 2023-07-25 10:52:20 +02:00
4lDO2 829d2276fb Remove Context::vfork.
Since clone is no longer exists as a syscall, it makes little sense to
manage vfork in the kernel. Implementing vfork in userspace would still
be possible.
2023-07-25 10:52:20 +02:00
4lDO2 11fdb3bb46 Copy on writes to CoW pages. 2023-07-25 10:52:19 +02:00