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Fix double-load of %cr3 and double-copy of the stack frame for the

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kernel entry from userspace vm86.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2018-05-22 13:30:56 +00:00
parent 67ad3c0bf9
commit a3c7cd11d2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=334040
1 changed files with 1 additions and 1 deletions
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2
sys/i386/include/asmacros.h
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@ -218,7 +218,7 @@
testl $PCB_VM86CALL, PCB_FLAGS(%eax)
jnz 3f
NMOVE_STACKS
jmp 2f
jmp 3f
1: testb $SEL_RPL_MASK, TF_CS(%esp)
jz 3f
2: MOVE_STACKS