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UefiCpuPkg: Replace Opcode with the corresponding instructions.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3790

Replace Opcode with the corresponding instructions.
The code changes have been verified with CompareBuild.py tool, which
can be used to compare the results of two different EDK II builds to
determine if they generate the same binaries.
(tool link: https://github.com/mdkinney/edk2/tree/sandbox/CompareBuild)

Signed-off-by: Jason Lou <yun.lou@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
This commit is contained in:
Jason
2022-01-10 22:01:18 +08:00
committed by mergify[bot]
parent 7bc8b1d9f4
commit 2aa107c0aa
10 changed files with 43 additions and 43 deletions
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14
UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/ExceptionHandlerAsm.nasm
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@@ -1,5 +1,5 @@
;------------------------------------------------------------------------------ ;
; Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2012 - 2022, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
@@ -32,12 +32,13 @@ SECTION .text
ALIGN 8
AsmIdtVectorBegin:
%assign Vector 0
%rep 32
db 0x6a ; push #VectorNum
db ($ - AsmIdtVectorBegin) / ((AsmIdtVectorEnd - AsmIdtVectorBegin) / 32) ; VectorNum
push byte %[Vector]
push rax
mov rax, ASM_PFX(CommonInterruptEntry)
jmp rax
%assign Vector Vector+1
%endrep
AsmIdtVectorEnd:
@@ -257,7 +258,7 @@ DrFinish:
;; FX_SAVE_STATE_X64 FxSaveState;
sub rsp, 512
mov rdi, rsp
db 0xf, 0xae, 0x7 ;fxsave [rdi]
fxsave [rdi]
;; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
cld
@@ -284,7 +285,7 @@ DrFinish:
;; FX_SAVE_STATE_X64 FxSaveState;
mov rsi, rsp
db 0xf, 0xae, 0xE ; fxrstor [rsi]
fxrstor [rsi]
add rsp, 512
;; UINT64 Dr0, Dr1, Dr2, Dr3, Dr6, Dr7;
@@ -371,8 +372,7 @@ DoReturn:
push qword [rax + 0x18] ; save EFLAGS in new location
mov rax, [rax] ; restore rax
popfq ; restore EFLAGS
DB 0x48 ; prefix to composite "retq" with next "retf"
retf ; far return
retfq
DoIret:
iretq