From: Liming Gao <liming.gao@intel.com>
To: edk2-devel@lists.01.org
Cc: Jiewen Yao <jiewen.yao@intel.com>
Subject: [Patch] UefiCpuPkg PiSmmCpuDxeSmm: Remove unnecessary jmp _SmiHandler
Date: Mon, 10 Sep 2018 16:20:25 +0800 [thread overview]
Message-ID: <1536567625-9540-1-git-send-email-liming.gao@intel.com> (raw)
This change is wrong introduced by e21e355e2ca7fefb15b4df7078f995d3fb9c2b89
It is not required. So, revert it.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
---
UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
index 315d0f8..7b1b3ca 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.nasm
@@ -173,9 +173,8 @@ SmiHandlerIdtrAbsAddr:
mov gs, eax
mov ax, [rbx + DSC_SS]
mov ss, eax
- mov rax, strict qword 0 ; mov rax, _SmiHandler
-_SmiHandlerAbsAddr:
- jmp rax
+
+; jmp _SmiHandler ; instruction is not needed
_SmiHandler:
mov rbx, [rsp + 0x8] ; rcx <- CpuIndex
@@ -229,8 +228,4 @@ ASM_PFX(PiSmmCpuSmiEntryFixupAddress):
lea rax, [ASM_PFX(gSmiHandlerIdtr)]
lea rcx, [SmiHandlerIdtrAbsAddr]
mov qword [rcx - 8], rax
-
- lea rax, [_SmiHandler]
- lea rcx, [_SmiHandlerAbsAddr]
- mov qword [rcx - 8], rax
ret
--
2.10.0.windows.1
next reply other threads:[~2018-09-10 8:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-10 8:20 Liming Gao [this message]
2018-09-11 15:06 ` [Patch] UefiCpuPkg PiSmmCpuDxeSmm: Remove unnecessary jmp _SmiHandler Laszlo Ersek
2018-09-11 22:02 ` Yao, Jiewen
2018-09-12 0:59 ` Gao, Liming
2018-09-12 1:03 ` Yao, Jiewen
2018-09-12 1:29 ` Gao, Liming
2018-09-12 1:33 ` Yao, Jiewen
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