diff options
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm | 31 |
1 files changed, 2 insertions, 29 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm index 821ee182b6..bc8d95d8dc 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiException.nasm @@ -145,25 +145,8 @@ ASM_PFX(gcSmiGdtr): DQ NullSeg
ASM_PFX(gcSmiIdtr):
- DW IDT_SIZE - 1
- DQ _SmiIDT
-
-;
-; Here is the IDT. There are 32 (not 255) entries in it since only processor
-; generated exceptions will be handled.
-;
-_SmiIDT:
-%rep 32
- DW 0 ; 0:15
- DW CODE_SEL ; Segment selector
- DB 0 ; Unused
- DB 0x8e ; Interrupt Gate, Present
- DW 0 ; 16:31
- DQ 0 ; 32:63
-%endrep
-_SmiIDTEnd:
-
-IDT_SIZE equ _SmiIDTEnd - _SmiIDT
+ DW 0
+ DQ 0
DEFAULT REL
SECTION .text
@@ -400,13 +383,3 @@ ASM_PFX(PageFaultIdtHandlerSmmProfile): add rsp, 16 ; skip INT# & ErrCode
iretq
-global ASM_PFX(InitializeIDTSmmStackGuard)
-ASM_PFX(InitializeIDTSmmStackGuard):
-;
-; If SMM Stack Guard feature is enabled, set the IST field of
-; the interrupt gate for Page Fault Exception to be 1
-;
- lea rax, [_SmiIDT + 14 * 16]
- mov byte [rax + 4], 1
- ret
-
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