add #pragma pack(1) for some structures.

[mirror_edk2.git] / MdePkg / Include / IndustryStandard / Acpi20.h

diff --git a/MdePkg/Include/IndustryStandard/Acpi20.h b/MdePkg/Include/IndustryStandard/Acpi20.h
index b67ee54440cd89f507b29ddf61999ddd22865149..4476bf9f22d469abde3b322417cb6fd5eb1b4fa6 100644 (file)
--- a/MdePkg/Include/IndustryStandard/Acpi20.h
+++ b/MdePkg/Include/IndustryStandard/Acpi20.h
@@ -99,6 +99,10 @@ typedef struct {
 ///\r
 #define EFI_ACPI_2_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION 0x01\r
 \r
+//           \r
+// Ensure proper structure formats\r
+//           \r
+#pragma pack(1)\r
 ///\r
 /// Fixed ACPI Description Table Structure (FADT)\r
 ///\r
@@ -156,6 +160,7 @@ typedef struct {
   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XGpe0Blk;\r
   EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE  XGpe1Blk;\r
 } EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE;\r
+#pragma pack()\r
 \r
 ///\r
 /// FADT Version (as defined in ACPI 2.0 spec.)\r