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Add Intel uCode parser

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This commit is contained in:
Nikolaj Schlej 2025-03-07 11:03:04 +07:00
parent 58366f48fe
commit 4e2a8f6bd7
1 changed files with 36 additions and 0 deletions
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36
common/nvramparser.cpp
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@ -1221,6 +1221,42 @@ USTATUS NvramParser::parseNvramVolumeBody(const UModelIndex & index,const UINT32
// Phoenix SLIC Pubkey/Marker
// Intel uCode
try {
// Check data size
if (volumeBodySize - storeOffset < sizeof(INTEL_MICROCODE_HEADER)) {
throw 0;
}
const UINT32 currentUint32 = readUnaligned((const UINT32*)(volumeBody.constData() + storeOffset));
if (currentUint32 != INTEL_MICROCODE_HEADER_VERSION_1) {
throw 0;
}
// Check microcode header candidate
const INTEL_MICROCODE_HEADER* ucodeHeader = (const INTEL_MICROCODE_HEADER*)(volumeBody.constData() + storeOffset);
if (FALSE == ffsParser->microcodeHeaderValid(ucodeHeader)) {
throw 0;
}
// Check size candidate
if (ucodeHeader->TotalSize == 0) {
throw 0;
}
// All checks passed, microcode found
UByteArray ucode = volumeBody.mid(storeOffset);
UModelIndex ucodeIndex;
if (U_SUCCESS != ffsParser->parseIntelMicrocodeHeader(ucode, storeOffset, index, ucodeIndex)) {
throw 0;
}
storeOffset += ucodeHeader->TotalSize - 1;
previousStoreEndOffset = storeOffset + 1;
continue;
} catch (...) {
// Parsing failed, try something else
}
// Padding
if (storeOffset < volumeBodySize) {