UefiCpuPkg/PiSmmCpuDxeSmm: patch "gSmmInitStack" with PatchInstructionX86()

[mirror_edk2.git] / UefiCpuPkg / PiSmmCpuDxeSmm / Ia32 / SmmInit.nasm

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmInit.nasm b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmInit.nasm
index f59413d9d4a3cce37a77fb2405b954f48b599793..5ff3cd2e731fb142fc2d1a5a5fdb13ef405c3e9c 100644 (file)
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmInit.nasm
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmInit.nasm
@@ -25,7 +25,7 @@ extern ASM_PFX(mSmmRelocationOriginalAddress)
 global ASM_PFX(gPatchSmmCr3)\r
 global ASM_PFX(gPatchSmmCr4)\r
 global ASM_PFX(gPatchSmmCr0)\r
-global ASM_PFX(gSmmInitStack)\r
+global ASM_PFX(gPatchSmmInitStack)\r
 global ASM_PFX(gcSmiInitGdtr)\r
 global ASM_PFX(gcSmmInitSize)\r
 global ASM_PFX(gcSmmInitTemplate)\r
@@ -72,8 +72,8 @@ BITS 32
     mov     fs, edi\r
     mov     gs, edi\r
     mov     ss, edi\r
-    DB      0xbc                        ; mov esp, imm32\r
-ASM_PFX(gSmmInitStack): DD 0\r
+    mov     esp, strict dword 0         ; source operand will be patched\r
+ASM_PFX(gPatchSmmInitStack):\r
     call    ASM_PFX(SmmInitHandler)\r
     rsm\r
 \r