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There is no need to disable interrupts around npxsave call.

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i386 was changed to only require critical section around the thread
FPU state manipulations, and vm86_bioscall callers already enter
critical section for other reasons.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
kib 2018-03-23 15:46:53 +00:00
parent 97713e367c
commit e114084144
1 changed files with 0 additions and 4 deletions
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4
sys/i386/i386/vm86bios.s
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@ -61,8 +61,6 @@ ENTRY(vm86_bioscall)
pushl %edi
pushl %gs
pushfl
cli
movl PCPU(CURTHREAD),%ecx
cmpl %ecx,PCPU(FPCURTHREAD) /* do we need to save fp? */
jne 1f
@ -73,8 +71,6 @@ ENTRY(vm86_bioscall)
addl $4,%esp
popl %edx /* recover our pcb */
1:
popfl
movl SCR_VMFRAME(%edx),%ebx /* target frame location */
movl %ebx,%edi /* destination */
movl SCR_ARGFRAME(%edx),%esi /* source (set on entry) */