From 6b7bb04614be39e9903c602dd65ba18426f6a6f2 Mon Sep 17 00:00:00 2001
From: hanliyang <hanliyang@hygon.cn>
Date: Sun, 19 Jun 2022 18:12:35 +0800
Subject: [PATCH 8/9] OvmfPkg/BaseMemEncryptLib: Return SUCCESS if not support
 SEV live migration

Add this change to avoid trigger 'ASSERT_EFI_ERROR (Status = Unsupported)'
when QEMU doesn't support SEV live migration.

Signed-off-by: hanliyang <hanliyang@hygon.cn>
---
 OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c b/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c
index a64ff2a5..7b29582d 100644
--- a/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c
+++ b/OvmfPkg/Library/BaseMemEncryptSevLib/X64/MemEncryptSevLib.c
@@ -168,10 +168,12 @@ SetMemoryEncDecHypercall3 (
   UINTN          Error;
   UINTN          EncryptState;
 
-  Ret = RETURN_UNSUPPORTED;
+  //
+  // Return success if not support migration.
+  //
+  Ret = RETURN_SUCCESS;
 
   if (MemEncryptSevLiveMigrationIsEnabled ()) {
-    Ret = RETURN_SUCCESS;
     //
     // The encryption bit is set/clear on the smallest page size, hence
     // use the 4k page size in MAP_GPA_RANGE hypercall below.
-- 
2.25.1