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| author | Tianhao Wang <shrik3@mailbox.org> | 2024-06-06 02:08:21 +0200 |
|---|---|---|
| committer | Tianhao Wang <shrik3@mailbox.org> | 2024-06-11 15:17:14 +0200 |
| commit | d495a1745c83a8186bf1c6c531177887dd245436 (patch) | |
| tree | 5ea93adceea22d7aa12eb0165fce80e458dd3864 /src/defs.rs | |
| parent | a86f59b32eb86a1ccb94bf1e627c1115c3b6b217 (diff) | |
proc: basic infra for multithreading
including task and scheduler wrapper, context swap assembly, and some
notes... The lifetime of task is tricky, I'll fix it later
Signed-off-by: Tianhao Wang <shrik3@mailbox.org>
Diffstat (limited to 'src/defs.rs')
| -rw-r--r-- | src/defs.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/defs.rs b/src/defs.rs index d9a15b5..83ba487 100644 --- a/src/defs.rs +++ b/src/defs.rs @@ -82,6 +82,11 @@ impl Mem { // (64 GiB) pub const KERNEL_HEAP_START: u64 = 0xffff_8030_0000_0000; pub const KERNEL_HEAP_END: u64 = 0xffff_8040_0000_0000; + // unlike the initial "thread" that has 64K stack, new tasks have 4 pages of + // kernel stack. + pub const KERNEL_STACK_SIZE: u64 = 0x4000; + pub const KERNEL_STACK_MASK: u64 = Self::KERNEL_STACK_SIZE - 1; + pub const KERNEL_STACK_TASK_MAGIC: u64 = 0x1A2B3C4D5E6F6969; } // convert VA <-> PA wrt. the kernel id mapping |