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author | Jeff Fan <jeff.fan@intel.com> | 2015-07-15 03:40:41 +0000 |
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committer | vanjeff <vanjeff@Edk2> | 2015-07-15 03:40:41 +0000 |
commit | d1cf93333f3a9394c2f746db4deb374b6ba374fd (patch) | |
tree | 85c35cc5bf3e938f28ac701469e55a9a43bcc6e6 /UefiCpuPkg/CpuMpPei/Microcode.h | |
parent | d32c7f6cabf8d3c7d32c6f7c93d30222eaaa57cf (diff) | |
download | edk2-platforms-d1cf93333f3a9394c2f746db4deb374b6ba374fd.tar.xz |
UefiCpuPkg/CpuMpPei: Load microcode on BSP and APs
Add DetectMicrocode() to load microcode on BSP and APs.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18002 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'UefiCpuPkg/CpuMpPei/Microcode.h')
-rw-r--r-- | UefiCpuPkg/CpuMpPei/Microcode.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/Microcode.h b/UefiCpuPkg/CpuMpPei/Microcode.h new file mode 100644 index 0000000000..6f93e2f044 --- /dev/null +++ b/UefiCpuPkg/CpuMpPei/Microcode.h @@ -0,0 +1,68 @@ +/** @file + Definitions for loading microcode on processors. + + Copyright (c) 2015, Intel Corporation. All rights reserved.<BR> + This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef _CPU_MICROCODE_H_ +#define _CPU_MICROCODE_H_ + +#define EFI_MSR_IA32_PLATFORM_ID 0x17 +#define EFI_MSR_IA32_BIOS_UPDT_TRIG 0x79 +#define EFI_MSR_IA32_BIOS_SIGN_ID 0x8b + +#define MAX_MICROCODE_DESCRIPTOR_LENGTH 100 + +typedef struct { + VOID *MicrocodeData; + UINTN MicrocodeSize; + UINT32 ProcessorId; + BOOLEAN Load; +} MICROCODE_INFO; + +// +// Definition for IA32 microcode format +// +typedef struct { + UINT32 HeaderVersion; + UINT32 UpdateRevision; + UINT32 Date; + UINT32 ProcessorId; + UINT32 Checksum; + UINT32 LoaderRevision; + UINT32 ProcessorFlags; + UINT32 DataSize; + UINT32 TotalSize; + UINT8 Reserved[12]; +} EFI_CPU_MICROCODE_HEADER; + +typedef struct { + UINT32 ExtendedSignatureCount; + UINT32 ExtendedTableChecksum; + UINT8 Reserved[12]; +} EFI_CPU_MICROCODE_EXTENDED_TABLE_HEADER; + +typedef struct { + UINT32 ProcessorSignature; + UINT32 ProcessorFlag; + UINT32 ProcessorChecksum; +} EFI_CPU_MICROCODE_EXTENDED_TABLE; + +/** + Detect whether specified processor can find matching microcode patch and load it. + +**/ +VOID +MicrocodeDetect ( + VOID + ); + +#endif |