REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3805
Add SMBIOS spec defined anchor strings & length defines.
- '_SM_' chapter 5.2.1 SMBIOS 2.1 (32-bit) Entry Point
- '_SM3_' chapter 5.2.2 SMBIOS 3.0 (64-bit) Entry Point
Changes from v1 to v2:
- Replace non-ASCII characters
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang....@intel.com>
Cc: Andrew Fish <af...@apple.com>
Signed-off-by: Giri Mudusuru <gi...@apple.com>
---
MdePkg/Include/IndustryStandard/SmBios.h | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/MdePkg/Include/IndustryStandard/SmBios.h
b/MdePkg/Include/IndustryStandard/SmBios.h
index 9cbdec1182..89985bb418 100644
--- a/MdePkg/Include/IndustryStandard/SmBios.h
+++ b/MdePkg/Include/IndustryStandard/SmBios.h
@@ -48,6 +48,24 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
//
#define SMBIOS_3_0_TABLE_MAX_LENGTH 0xFFFFFFFF
+///
+/// Reference SMBIOS 3.4, chapter 5.2.1 SMBIOS 2.1 (32-bit) Entry Point
+/// Table 1 - SMBIOS 2.1 (32-bit) Entry Point structure, offset 00h
+/// _SM_, specified as four ASCII characters (5F 53 4D 5F).
+///@{
+#define SMBIOS_ANCHOR_STRING "_SM_"
+#define SMBIOS_ANCHOR_STRING_LENGTH 4
+///@}
+
+///
+/// Reference SMBIOS 3.4, chapter 5.2.2 SMBIOS 3.0 (64-bit) Entry Point
+/// Table 2 - SMBIOS 3.0 (64-bit) Entry Point structure, offset 00h
+/// _SM3_, specified as five ASCII characters (5F 53 4D 33 5F).
+///@{
+#define SMBIOS_3_0_ANCHOR_STRING "_SM3_"
+#define SMBIOS_3_0_ANCHOR_STRING_LENGTH 5
+///@}
+
//
// SMBIOS type macros which is according to SMBIOS 3.3.0 specification.
//
@@ -138,7 +156,7 @@ typedef UINT16 SMBIOS_HANDLE;
///
#pragma pack(1)
typedef struct {
- UINT8 AnchorString[4];
+ UINT8 AnchorString[SMBIOS_ANCHOR_STRING_LENGTH];
UINT8 EntryPointStructureChecksum;
UINT8 EntryPointLength;
UINT8 MajorVersion;
@@ -155,7 +173,7 @@ typedef struct {
} SMBIOS_TABLE_ENTRY_POINT;
typedef struct {
- UINT8 AnchorString[5];
+ UINT8 AnchorString[SMBIOS_3_0_ANCHOR_STRING_LENGTH];
UINT8 EntryPointStructureChecksum;
UINT8 EntryPointLength;
UINT8 MajorVersion;
--
2.39.2 (Apple Git-144)
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