diff options
Diffstat (limited to 'UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm')
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm index 9ebe31795b..5bcdf7726b 100644 --- a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm +++ b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm @@ -315,6 +315,7 @@ MwaitCheckGeneric: MwaitLoopGeneric:
cli
mov rax, rsp ; Set Monitor Address
+ sub eax, 8 ; To ensure the monitor address is in the page table
xor ecx, ecx ; ecx = 0
xor edx, edx ; edx = 0
monitor
|