From 96390bb8a51519a0dc564a63186d4955f2521459 Mon Sep 17 00:00:00 2001
From: Crystal Lee <CrystalLee@ami.com>
Date: Mon, 22 Jul 2024 14:19:51 +0800
Subject: [PATCH] UefiCpuPkg: Update return status to follow spec

SplitPage may return OUT_OF_RESOURCES if no memory resource to split
page entry. ConvertMemoryPageAttributes should also return
OUT_OF_RESOURCES instead of override the status to UNSUPPORTED.
Then EfiSetMemoryAttributes and EfiClearMemoryAttributes can return
correct status of OUT_OF_RESOURCES when requested attributes cannot
be applied due to lack of system resource.

Cc: Felix Polyudov <felixp@ami.com>
Cc: David Hsieh <davidhsieh@ami.com>
Cc: James Wang <jameswang@ami.com>
Signed-off-by: Crystal Lee <crystallee@ami.com>
---
 UefiCpuPkg/CpuDxe/CpuPageTable.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/UefiCpuPkg/CpuDxe/CpuPageTable.c b/UefiCpuPkg/CpuDxe/CpuPageTable.c
index 52c50b073b..9a519bcb7e 100644
--- a/UefiCpuPkg/CpuDxe/CpuPageTable.c
+++ b/UefiCpuPkg/CpuDxe/CpuPageTable.c
@@ -849,7 +849,6 @@ ConvertMemoryPageAttributes (
 
       Status = SplitPage (PageEntry, PageAttribute, SplitAttribute, AllocatePagesFunc);
       if (RETURN_ERROR (Status)) {
-        Status = RETURN_UNSUPPORTED;
         goto Done;
       }