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Initial ME parser, improved ucode parser, reset vector info

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This commit is contained in:
Nikolaj Schlej 2019-07-24 10:30:59 -07:00
parent f386eda430
commit 2e7aa8133a
21 changed files with 1867 additions and 166 deletions
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63
common/fit.h Normal file → Executable file
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@ -50,21 +50,6 @@ typedef struct FIT_ENTRY_ {
UINT8 Checksum;
} FIT_ENTRY;
typedef struct INTEL_MICROCODE_HEADER_ {
UINT32 Version;
UINT32 Revision;
UINT16 DateYear;
UINT8 DateDay;
UINT8 DateMonth;
UINT32 CpuSignature;
UINT32 Checksum;
UINT32 LoaderRevision;
UINT32 CpuFlags;
UINT32 DataSize;
UINT32 TotalSize;
UINT8 Reserved[12];
} INTEL_MICROCODE_HEADER;
typedef struct {
UINT16 IndexRegisterAddress;
UINT16 DataRegisterAddress;
@ -73,9 +58,51 @@ typedef struct {
UINT16 Index;
} FIT_ENTRY_VERSION_0_CONFIG_POLICY;
#define INTEL_MICROCODE_HEADER_VERSION 0x00000001
#define INTEL_MICROCODE_HEADER_RESERVED_BYTE 0x00
#define INTEL_MICROCODE_HEADER_SIZES_VALID(ptr) (((INTEL_MICROCODE_HEADER*)ptr)->TotalSize - ((INTEL_MICROCODE_HEADER*)ptr)->DataSize == sizeof(INTEL_MICROCODE_HEADER))
// This scructure is described in Section 9.11.1 of the Intel Software Developer manual Volume 3A Part 1
typedef struct INTEL_MICROCODE_HEADER_ {
UINT32 Version;
UINT32 Revision;
UINT16 DateYear;
UINT8 DateDay;
UINT8 DateMonth;
UINT32 CpuSignature;
UINT32 Checksum; // Checksum of Update Data and Header. Used to verify the integrity of the update header and data.
// Checksum is correct when the summation of all the DWORDs (including the extended Processor Signature Table)
// that comprise the microcode update result in 00000000H.
UINT32 LoaderRevision;
UINT32 CpuFlags;
UINT32 DataSize; // Specifies the size of the encrypted data in bytes, and must be a multiple of DWORDs.
// If this value is 00000000H, then the microcode update encrypted data is 2000 bytes (or 500 DWORDs).
UINT32 TotalSize;// Specifies the total size of the microcode update in bytes.
// It is the summation of the header size, the encrypted data size and the size of the optional extended signature table.
// This value is always a multiple of 1024.
UINT8 Reserved[12];
} INTEL_MICROCODE_HEADER;
#define INTEL_MICROCODE_REAL_DATA_SIZE_ON_ZERO 2000
typedef struct INTEL_MICROCODE_EXTENDED_HEADER_ {
UINT32 EntryCount;
UINT32 Checksum; // Checksum of extended processor signature table.
// Used to verify the integrity of the extended processor signature table.
// Checksum is correct when the summation of the DWORDs that comprise the extended processor signature table results in 00000000H.
UINT8 Reserved[12];
// INTEL_MICROCODE_EXTENDED_HEADER_ENTRY Entries[EntryCount];
} INTEL_MICROCODE_EXTENDED_HEADER;
typedef struct INTEL_MICROCODE_EXTENDED_HEADER_ENTRY_ {
UINT32 CpuSignature;
UINT32 CpuFlags;
UINT32 Checksum; // To calculate the Checksum, substitute the Primary Processor Signature entry and the Processor Flags entry with the corresponding Extended Patch entry.
// Delete the Extended Processor Signature Table entries.
// Checksum is correct when the summation of all DWORDs that comprise the created Extended Processor Patch results in 00000000H.
} INTEL_MICROCODE_EXTENDED_HEADER_ENTRY;
#define INTEL_MICROCODE_HEADER_VERSION_1 0x00000001
#pragma pack(pop)