diff options
| author | Jian J Wang <jian.j.wang@intel.com> | 2018-08-20 11:35:58 +0800 |
|---|---|---|
| committer | Jian J Wang <jian.j.wang@intel.com> | 2018-08-30 07:22:30 +0800 |
| commit | 09afd9a42a7ff719bcb5b464a2b2dea7eb3e5e7b (patch) | |
| tree | be5b00f1080d6fc786c8ecf9da206bb0152da729 /UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm | |
| parent | dcc026217fdc363f55c217039fc43d344f69fed6 (diff) | |
| download | edk2-09afd9a42a7ff719bcb5b464a2b2dea7eb3e5e7b.tar.gz edk2-09afd9a42a7ff719bcb5b464a2b2dea7eb3e5e7b.tar.bz2 edk2-09afd9a42a7ff719bcb5b464a2b2dea7eb3e5e7b.zip | |
UefiCpuPkg/PiSmmCpuDxeSmm: implement non-stop mode for SMM
Since SMM profile feature has already implemented non-stop mode if #PF
occurred, this patch just makes use of the existing implementation to
accommodate heap guard and NULL pointer detection feature.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm index fa02c1016c..879fa0ba63 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmiException.nasm @@ -20,6 +20,7 @@ extern ASM_PFX(FeaturePcdGet (PcdCpuSmmProfileEnable))
extern ASM_PFX(SmiPFHandler)
+extern ASM_PFX(mSetupDebugTrap)
global ASM_PFX(gcSmiIdtr)
global ASM_PFX(gcSmiGdtr)
@@ -673,7 +674,7 @@ o16 mov [ecx + IA32_TSS._SS], ax mov esp, ebp
; Set single step DB# if SMM profile is enabled and page fault exception happens
- cmp byte [dword ASM_PFX(FeaturePcdGet (PcdCpuSmmProfileEnable))], 0
+ cmp byte [dword ASM_PFX(mSetupDebugTrap)], 0
jz @Done2
; Create return context for iretd in stub function
|