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edk2/SOURCES/0033-OvmfPkg-SmbiosPlatform...

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From 8b2cc30989c009ab72951022bd017143764411b2 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Mon, 28 Nov 2022 13:40:20 +0800
Subject: OvmfPkg/SmbiosPlatformDxe: use PcdFirmware*
Instead of using hard-coded strings ("0.0.0" for BiosVersion etc)
which is mostly useless read the PCDs (PcdFirmwareVendor,
PcdFirmwareVersionString and PcdFirmwareReleaseDateString) and
build the string table dynamuically at runtime.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
(cherry picked from commit 4cb94f20b002c99dd2b4b75f07c5495b81a34ffd)
https://issues.redhat.com/browse/RHEL-75
---
OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c | 115 +++++++++++-------
.../SmbiosPlatformDxe/SmbiosPlatformDxe.inf | 6 +
.../XenSmbiosPlatformDxe.inf | 9 +-
3 files changed, 85 insertions(+), 45 deletions(-)
diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
index 94249d3ff1..dc1e6aed63 100644
--- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
+++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.c
@@ -9,57 +9,43 @@
**/
#include <IndustryStandard/SmBios.h> // SMBIOS_TABLE_TYPE0
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h> // ASSERT_EFI_ERROR()
+#include <Library/MemoryAllocationLib.h>
+#include <Library/PcdLib.h>
#include <Library/UefiBootServicesTableLib.h> // gBS
#include <Protocol/Smbios.h> // EFI_SMBIOS_PROTOCOL
#include "SmbiosPlatformDxe.h"
-#define TYPE0_STRINGS \
- "EFI Development Kit II / OVMF\0" /* Vendor */ \
- "0.0.0\0" /* BiosVersion */ \
- "02/06/2015\0" /* BiosReleaseDate */
-//
-// Type definition and contents of the default Type 0 SMBIOS table.
-//
-#pragma pack(1)
-typedef struct {
- SMBIOS_TABLE_TYPE0 Base;
- UINT8 Strings[sizeof (TYPE0_STRINGS)];
-} OVMF_TYPE0;
-#pragma pack()
-
-STATIC CONST OVMF_TYPE0 mOvmfDefaultType0 = {
+STATIC CONST SMBIOS_TABLE_TYPE0 mOvmfDefaultType0 = {
+ // SMBIOS_STRUCTURE Hdr
{
- // SMBIOS_STRUCTURE Hdr
- {
- EFI_SMBIOS_TYPE_BIOS_INFORMATION, // UINT8 Type
- sizeof (SMBIOS_TABLE_TYPE0), // UINT8 Length
- },
- 1, // SMBIOS_TABLE_STRING Vendor
- 2, // SMBIOS_TABLE_STRING BiosVersion
- 0xE800, // UINT16 BiosSegment
- 3, // SMBIOS_TABLE_STRING BiosReleaseDate
- 0, // UINT8 BiosSize
- { // MISC_BIOS_CHARACTERISTICS BiosCharacteristics
- 0, // Reserved :2
- 0, // Unknown :1
- 1, // BiosCharacteristicsNotSupported :1
- // Remaining BiosCharacteristics bits left unset :60
- },
- { // BIOSCharacteristicsExtensionBytes[2]
- 0, // BiosReserved
- 0x1C // SystemReserved = VirtualMachineSupported |
- // UefiSpecificationSupported |
- // TargetContentDistributionEnabled
- },
- 0, // UINT8 SystemBiosMajorRelease
- 0, // UINT8 SystemBiosMinorRelease
- 0xFF, // UINT8 EmbeddedControllerFirmwareMajorRelease
- 0xFF // UINT8 EmbeddedControllerFirmwareMinorRelease
+ EFI_SMBIOS_TYPE_BIOS_INFORMATION, // UINT8 Type
+ sizeof (SMBIOS_TABLE_TYPE0), // UINT8 Length
},
- // Text strings (unformatted area)
- TYPE0_STRINGS
+ 1, // SMBIOS_TABLE_STRING Vendor
+ 2, // SMBIOS_TABLE_STRING BiosVersion
+ 0xE800, // UINT16 BiosSegment
+ 3, // SMBIOS_TABLE_STRING BiosReleaseDate
+ 0, // UINT8 BiosSize
+ { // MISC_BIOS_CHARACTERISTICS BiosCharacteristics
+ 0, // Reserved :2
+ 0, // Unknown :1
+ 1, // BiosCharacteristicsNotSupported :1
+ // Remaining BiosCharacteristics bits left unset :60
+ },
+ { // BIOSCharacteristicsExtensionBytes[2]
+ 0, // BiosReserved
+ 0x1C // SystemReserved = VirtualMachineSupported |
+ // UefiSpecificationSupported |
+ // TargetContentDistributionEnabled
+ },
+ 0, // UINT8 SystemBiosMajorRelease
+ 0, // UINT8 SystemBiosMinorRelease
+ 0xFF, // UINT8 EmbeddedControllerFirmwareMajorRelease
+ 0xFF // UINT8 EmbeddedControllerFirmwareMinorRelease
};
/**
@@ -153,14 +139,55 @@ InstallAllStructures (
//
// Add OVMF default Type 0 (BIOS Information) table
//
+ CHAR16 *VendStr, *VersStr, *DateStr;
+ UINTN VendLen, VersLen, DateLen;
+ CHAR8 *Type0;
+
+ VendStr = (CHAR16 *)FixedPcdGetPtr (PcdFirmwareVendor);
+ VendLen = StrLen (VendStr);
+ if (VendLen < 3) {
+ VendStr = L"unknown";
+ VendLen = StrLen (VendStr);
+ }
+
+ VersStr = (CHAR16 *)FixedPcdGetPtr (PcdFirmwareVersionString);
+ VersLen = StrLen (VersStr);
+ if (VersLen < 3) {
+ VersStr = L"unknown";
+ VersLen = StrLen (VersStr);
+ }
+
+ DateStr = (CHAR16 *)FixedPcdGetPtr (PcdFirmwareReleaseDateString);
+ DateLen = StrLen (DateStr);
+ if (DateLen < 3) {
+ DateStr = L"unknown";
+ DateLen = StrLen (DateStr);
+ }
+
+ DEBUG ((DEBUG_INFO, "FirmwareVendor: \"%s\" (%d chars)\n", VendStr, VendLen));
+ DEBUG ((DEBUG_INFO, "FirmwareVersionString: \"%s\" (%d chars)\n", VersStr, VersLen));
+ DEBUG ((DEBUG_INFO, "FirmwareReleaseDateString: \"%s\" (%d chars)\n", DateStr, DateLen));
+
+ Type0 = AllocateZeroPool (sizeof (mOvmfDefaultType0) + VendLen + VersLen + DateLen + 4);
+ if (Type0 == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ CopyMem (Type0, &mOvmfDefaultType0, sizeof (mOvmfDefaultType0));
+ UnicodeStrToAsciiStrS (VendStr, Type0 + sizeof (mOvmfDefaultType0), VendLen + 1);
+ UnicodeStrToAsciiStrS (VersStr, Type0 + sizeof (mOvmfDefaultType0) + VendLen + 1, VersLen + 1);
+ UnicodeStrToAsciiStrS (DateStr, Type0 + sizeof (mOvmfDefaultType0) + VendLen + VersLen + 2, DateLen + 1);
+
SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
Status = Smbios->Add (
Smbios,
NULL,
&SmbiosHandle,
- (EFI_SMBIOS_TABLE_HEADER *)&mOvmfDefaultType0
+ (EFI_SMBIOS_TABLE_HEADER *)Type0
);
ASSERT_EFI_ERROR (Status);
+
+ FreePool (Type0);
}
return EFI_SUCCESS;
diff --git a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
index 0066bbc922..52689c96e5 100644
--- a/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
+++ b/OvmfPkg/SmbiosPlatformDxe/SmbiosPlatformDxe.inf
@@ -32,9 +32,12 @@
[Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
DebugLib
MemoryAllocationLib
PcdLib
@@ -45,6 +48,9 @@
[Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfHostBridgePciDevId
gUefiOvmfPkgTokenSpaceGuid.PcdQemuSmbiosValidated
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVendor
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareReleaseDateString
[Protocols]
gEfiSmbiosProtocolGuid # PROTOCOL ALWAYS_CONSUMED
diff --git a/OvmfPkg/SmbiosPlatformDxe/XenSmbiosPlatformDxe.inf b/OvmfPkg/SmbiosPlatformDxe/XenSmbiosPlatformDxe.inf
index 7f4588e33d..e646c88741 100644
--- a/OvmfPkg/SmbiosPlatformDxe/XenSmbiosPlatformDxe.inf
+++ b/OvmfPkg/SmbiosPlatformDxe/XenSmbiosPlatformDxe.inf
@@ -38,19 +38,26 @@
[Packages]
MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
[Packages.IA32, Packages.X64]
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
DebugLib
UefiBootServicesTableLib
UefiDriverEntryPoint
[LibraryClasses.IA32, LibraryClasses.X64]
- BaseLib
HobLib
+[Pcd]
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVendor
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString
+ gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareReleaseDateString
+
[Protocols]
gEfiSmbiosProtocolGuid # PROTOCOL ALWAYS_CONSUMED
--
2.38.1
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