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| author | kib <kib@FreeBSD.org> | 2008-09-08 09:59:05 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2008-09-08 09:59:05 +0000 |
| commit | f444f744fafc9bc80a33a896317d5b48cbaf83da (patch) | |
| tree | a308fa38f71a058e176d9756194177e9afdf880e /sys/amd64/amd64/cpu_switch.S | |
| parent | 73306a54357999dd00f201e861f8ee335a59a421 (diff) | |
| download | FreeBSD-src-f444f744fafc9bc80a33a896317d5b48cbaf83da.zip FreeBSD-src-f444f744fafc9bc80a33a896317d5b48cbaf83da.tar.gz | |
The pcb_gs32p should be per-cpu, not per-thread pointer. This is
location in GDT where the segment descriptor from pcb_gs32sd is
copied, and the location is in GDT local to CPU.
Noted and reviewed by: peter
MFC after: 1 week
Diffstat (limited to 'sys/amd64/amd64/cpu_switch.S')
| -rw-r--r-- | sys/amd64/amd64/cpu_switch.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S index a0b11f8..99d6716 100644 --- a/sys/amd64/amd64/cpu_switch.S +++ b/sys/amd64/amd64/cpu_switch.S @@ -266,7 +266,7 @@ store_seg: movl %es,PCB_ES(%r8) movl %fs,PCB_FS(%r8) jmp done_store_seg -2: movq PCB_GS32P(%r8),%rax +2: movq PCPU(GS32P),%rax movq (%rax),%rax movq %rax,PCB_GS32SD(%r8) jmp 1b @@ -283,7 +283,7 @@ load_seg: movl PCB_FS(%r8),%fs jmp done_load_seg /* Restore userland %gs while preserving kernel gsbase */ -2: movq PCB_GS32P(%r8),%rax +2: movq PCPU(GS32P),%rax movq PCB_GS32SD(%r8),%rcx movq %rcx,(%rax) jmp 1b |
