1 files changed, 6 insertions, 1 deletions
diff --git a/MdeModulePkg/Include/Guid/AcpiS3Context.h b/MdeModulePkg/Include/Guid/AcpiS3Context.h
index 80386e59f0..de0f87cfb5 100644
--- a/MdeModulePkg/Include/Guid/AcpiS3Context.h
+++ b/MdeModulePkg/Include/Guid/AcpiS3Context.h
@@ -1,7 +1,7 @@
 /** @file
   Definitions for data structures used in S3 resume.
 
-Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2012, Intel Corporation. All rights reserved.<BR>
 
 This program and the accompanying materials
 are licensed and made available under the terms and conditions
@@ -22,6 +22,8 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define SMM_S3_RESUME_SMM_32 SIGNATURE_64 ('S','M','M','S','3','_','3','2')
 #define SMM_S3_RESUME_SMM_64 SIGNATURE_64 ('S','M','M','S','3','_','6','4')
 
+#pragma pack(1)
+
 typedef struct {
   UINT64                Signature;
   EFI_PHYSICAL_ADDRESS  SmmS3ResumeEntryPoint;
@@ -50,12 +52,15 @@ typedef struct {
 
 typedef struct {
   UINT16                ReturnCs;
+  UINT64                ReturnStatus;
   EFI_PHYSICAL_ADDRESS  ReturnEntryPoint;
   EFI_PHYSICAL_ADDRESS  ReturnStackPointer;
   EFI_PHYSICAL_ADDRESS  AsmTransferControl;
   IA32_DESCRIPTOR       Idtr;
 } PEI_S3_RESUME_STATE;
 
+#pragma pack()
+
 #define EFI_ACPI_S3_CONTEXT_GUID \
   { \
     0xef98d3a, 0x3e33, 0x497a, {0xa4, 0x1, 0x77, 0xbe, 0x3e, 0xb7, 0x4f, 0x38} \