X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FCore%2FDxe%2FGcd%2FGcd.c;h=2a026c0724402fb87e62a527246984b970050b23;hp=8081fef1b083cddc827ff4cc18fdb97bb0a6072a;hb=54ea99a798f7d714b59503fcc21ee97878bc6492;hpb=f3198cba84f56f85281b87c4e9bf96e77a934f16

diff --git a/MdeModulePkg/Core/Dxe/Gcd/Gcd.c b/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
index 8081fef1b0..2a026c0724 100644
--- a/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
+++ b/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
@@ -1765,6 +1765,7 @@ CoreInitializeMemoryServices (
   EFI_PHYSICAL_ADDRESS               HighAddress;
   EFI_HOB_RESOURCE_DESCRIPTOR        *MaxResourceHob;
   EFI_HOB_GUID_TYPE                  *GuidHob;
+  UINT32                              ReservedCodePageNumber;
 
   //
   // Point at the first HOB.  This must be the PHIT HOB.
@@ -1795,7 +1796,17 @@ CoreInitializeMemoryServices (
   // Cache the PHIT HOB for later use
   //
   PhitHob = Hob.HandoffInformationTable;
-
+  
+  if (FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) != 0) {
+  	ReservedCodePageNumber = PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);
+  	ReservedCodePageNumber += PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);
+   
+  	//
+  	// cache the Top address for loading modules at Fixed Address 
+  	//
+    gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress = PhitHob->EfiMemoryTop 
+                                                                   + EFI_PAGES_TO_SIZE(ReservedCodePageNumber);
+  }
   //
   // See if a Memory Type Information HOB is available
   //