From 1cf243b38505709f6d060d038865b5a4eab011cc Mon Sep 17 00:00:00 2001
From: Shankar C <Shankar.C@amd.com>
Date: Fri, 12 Jul 2024 16:48:08 +0530
Subject: [PATCH] AmdMinBoardPkg/PeiBoardInitPreMemLib: AmdMemoryInfoRange fix

EndofAmdMemoryInfoHobPpiGuidCallBack() should only consume
information from AmdMemoryInfoRange structure. Hence, the structure
should not be modified

Cc: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
Cc: Paul Grimes <paul.grimes@amd.com>
Signed-off-by: Shankar C <shankar.c@amd.com>
---
 .../PeiBoardInitPreMemLib/PeiMemoryInit.c       | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
index 03f08214e26..b6e18a2158d 100644
--- a/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
+++ b/Platform/AMD/AmdMinBoardPkg/Library/PeiBoardInitPreMemLib/PeiMemoryInit.c
@@ -89,7 +89,22 @@ EndofAmdMemoryInfoHobPpiGuidCallBack (
             FixedPcdGet32 (PcdAmdSmramAreaSize)
             ));
 
-          AmdMemoryInfoRange->Size -= FixedPcdGet32 (PcdAmdSmramAreaSize);
+          if (AmdMemoryInfoRange->Size) {
+          BuildResourceDescriptorHob (
+            EFI_RESOURCE_SYSTEM_MEMORY,
+            SYSTEM_MEMORY_ATTRIBUTES,
+            AmdMemoryInfoRange->Base,
+            AmdMemoryInfoRange->Size - FixedPcdGet32 (PcdAmdSmramAreaSize)
+            );
+
+          DEBUG ((
+            DEBUG_INFO,
+            "SYSTEM_MEMORY: Base = 0x%lX, Size = 0x%lX\n",
+            AmdMemoryInfoRange->Base,
+            AmdMemoryInfoRange->Size - FixedPcdGet32 (PcdAmdSmramAreaSize)
+            ));
+          }
+          break;
         }
 
         if (AmdMemoryInfoRange->Size) {