X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FCore%2FDxeIplPeim%2FIa32%2FDxeLoadFunc.c;fp=MdeModulePkg%2FCore%2FDxeIplPeim%2FIa32%2FDxeLoadFunc.c;h=6e8ca824d469e9db51405fc673c41d539e750436;hp=172d7cd1c60ccfebd3b7c48796078c9be9b94fa4;hb=f9d0e5daa058f0cf4caa8edad0dfa2a3a390f1b0;hpb=f55c76b301f15d287b58cd86dd59be978dc753a3

diff --git a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
index 172d7cd1c6..6e8ca824d4 100644
--- a/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
+++ b/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
@@ -246,8 +246,12 @@ HandOffToDxeCore (
   EFI_PEI_VECTOR_HANDOFF_INFO_PPI *VectorHandoffInfoPpi;
   BOOLEAN                   BuildPageTablesIa32Pae;
 
+  //
+  // Clear page 0 and mark it as allocated if NULL pointer detection is enabled.
+  //
   if (IsNullDetectionEnabled ()) {
     ClearFirst4KPage (HobList.Raw);
+    BuildMemoryAllocationHob (0, EFI_PAGES_TO_SIZE (1), EfiBootServicesData);
   }
 
   Status = PeiServicesAllocatePages (EfiBootServicesData, EFI_SIZE_TO_PAGES (STACK_SIZE), &BaseOfStack);