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

[mirror_edk2.git] / UefiCpuPkg / PiSmmCpuDxeSmm / MpService.c

diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
index 0d3223d714459fa7e616509513272c98ed30cd0f..17459c790ce54ca845f2e8d1cf5aacf008577687 100644 (file)
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
@@ -891,7 +891,7 @@ Gen4GPageTable (
     if ((Pte[0] & IA32_PG_PS) == 0) {\r
       // 4K-page entries are already mapped. Just hide the first one anyway.\r
       Pte = (UINT64*)(UINTN)(Pte[0] & ~mAddressEncMask & ~(EFI_PAGE_SIZE - 1));\r
-      Pte[0] &= ~IA32_PG_P; // Hide page 0\r
+      Pte[0] &= ~(UINT64)IA32_PG_P; // Hide page 0\r
     } else {\r
       // Create 4K-page entries\r
       Pages = (UINTN)AllocatePageTableMemory (1);\r