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Fix Intel descriptor version parsing at reading

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This commit is contained in:
vit9696 2018-05-06 15:26:53 +03:00
parent bfdf81739d
commit 8352653c9a
1 changed files with 16 additions and 12 deletions
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28
ffsengine.cpp
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@ -286,10 +286,14 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
const FLASH_DESCRIPTOR_REGION_SECTION* regionSection = (const FLASH_DESCRIPTOR_REGION_SECTION*)calculateAddress8(descriptor, descriptorMap->RegionBase); const FLASH_DESCRIPTOR_REGION_SECTION* regionSection = (const FLASH_DESCRIPTOR_REGION_SECTION*)calculateAddress8(descriptor, descriptorMap->RegionBase);
const FLASH_DESCRIPTOR_COMPONENT_SECTION* componentSection = (const FLASH_DESCRIPTOR_COMPONENT_SECTION*)calculateAddress8(descriptor, descriptorMap->ComponentBase); const FLASH_DESCRIPTOR_COMPONENT_SECTION* componentSection = (const FLASH_DESCRIPTOR_COMPONENT_SECTION*)calculateAddress8(descriptor, descriptorMap->ComponentBase);
UINT8 descriptorVersion = 0;
if (descriptorMap->Version.RawValue != FLASH_DESCRIPTOR_VERSION_INVALID) // Kaby Lake+ descriptor
descriptorVersion = 3;
// Check descriptor version by getting hardcoded value of FlashParameters.ReadClockFrequency // Check descriptor version by getting hardcoded value of FlashParameters.ReadClockFrequency
UINT8 descriptorVersion = 2; // Skylake+ by default else if (componentSection->FlashParameters.ReadClockFrequency == FLASH_FREQUENCY_20MHZ) // Old descriptor
if (componentSection->FlashParameters.ReadClockFrequency == FLASH_FREQUENCY_20MHZ) // Old descriptor
descriptorVersion = 1; descriptorVersion = 1;
else // Skylake+ descriptor
descriptorVersion = 2;
// ME region // ME region
QByteArray me; QByteArray me;
@ -356,7 +360,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
QByteArray ec; QByteArray ec;
UINT32 ecBegin = 0; UINT32 ecBegin = 0;
UINT32 ecEnd = 0; UINT32 ecEnd = 0;
if (descriptorVersion == 2) { if (descriptorVersion >= 2) {
if (regionSection->EcLimit) { if (regionSection->EcLimit) {
ecBegin = calculateRegionOffset(regionSection->EcBase); ecBegin = calculateRegionOffset(regionSection->EcBase);
ecEnd = calculateRegionSize(regionSection->EcBase, regionSection->EcLimit); ecEnd = calculateRegionSize(regionSection->EcBase, regionSection->EcLimit);
@ -383,7 +387,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
msg(tr("parseIntelImage: descriptor parsing failed, descriptor region has intersection with PDR region")); msg(tr("parseIntelImage: descriptor parsing failed, descriptor region has intersection with PDR region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
if (descriptorVersion == 2 && hasIntersection(descriptorBegin, descriptorEnd, ecBegin, ecEnd)) { if (descriptorVersion >= 2 && hasIntersection(descriptorBegin, descriptorEnd, ecBegin, ecEnd)) {
msg(tr("parseIntelImage: descriptor parsing failed, descriptor region has intersection with EC region")); msg(tr("parseIntelImage: descriptor parsing failed, descriptor region has intersection with EC region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
@ -400,7 +404,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
msg(tr("parseIntelImage: descriptor parsing failed, GbE region has intersection with PDR region")); msg(tr("parseIntelImage: descriptor parsing failed, GbE region has intersection with PDR region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
if (descriptorVersion == 2 && hasIntersection(gbeBegin, gbeEnd, ecBegin, ecEnd)) { if (descriptorVersion >= 2 && hasIntersection(gbeBegin, gbeEnd, ecBegin, ecEnd)) {
msg(tr("parseIntelImage: descriptor parsing failed, GbE region has intersection with EC region")); msg(tr("parseIntelImage: descriptor parsing failed, GbE region has intersection with EC region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
@ -413,7 +417,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
msg(tr("parseIntelImage: descriptor parsing failed, ME region has intersection with PDR region")); msg(tr("parseIntelImage: descriptor parsing failed, ME region has intersection with PDR region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
if (descriptorVersion == 2 && hasIntersection(meBegin, meEnd, ecBegin, ecEnd)) { if (descriptorVersion >= 2 && hasIntersection(meBegin, meEnd, ecBegin, ecEnd)) {
msg(tr("parseIntelImage: descriptor parsing failed, ME region has intersection with EC region")); msg(tr("parseIntelImage: descriptor parsing failed, ME region has intersection with EC region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
@ -422,12 +426,12 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
msg(tr("parseIntelImage: descriptor parsing failed, BIOS region has intersection with PDR region")); msg(tr("parseIntelImage: descriptor parsing failed, BIOS region has intersection with PDR region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
if (descriptorVersion == 2 && hasIntersection(biosBegin, biosEnd, ecBegin, ecEnd)) { if (descriptorVersion >= 2 && hasIntersection(biosBegin, biosEnd, ecBegin, ecEnd)) {
msg(tr("parseIntelImage: descriptor parsing failed, BIOS region has intersection with EC region")); msg(tr("parseIntelImage: descriptor parsing failed, BIOS region has intersection with EC region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
// PDR // PDR
if (descriptorVersion == 2 && hasIntersection(pdrBegin, pdrEnd, ecBegin, ecEnd)) { if (descriptorVersion >= 2 && hasIntersection(pdrBegin, pdrEnd, ecBegin, ecEnd)) {
msg(tr("parseIntelImage: descriptor parsing failed, PDR region has intersection with EC region")); msg(tr("parseIntelImage: descriptor parsing failed, PDR region has intersection with EC region"));
return ERR_INVALID_FLASH_DESCRIPTOR; return ERR_INVALID_FLASH_DESCRIPTOR;
} }
@ -470,7 +474,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
offsets.append(pdrBegin); offsets.append(pdrBegin);
info += tr("\nPDR region offset: %1h").hexarg(pdrBegin); info += tr("\nPDR region offset: %1h").hexarg(pdrBegin);
} }
if (descriptorVersion == 2 && regionSection->EcLimit) { if (descriptorVersion >= 2 && regionSection->EcLimit) {
offsets.append(ecBegin); offsets.append(ecBegin);
info += tr("\nEC region offset: %1h").hexarg(ecBegin); info += tr("\nEC region offset: %1h").hexarg(ecBegin);
} }
@ -504,7 +508,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
.arg(masterSection->BiosRead & FLASH_DESCRIPTOR_REGION_ACCESS_PDR ? "Yes " : "No ") .arg(masterSection->BiosRead & FLASH_DESCRIPTOR_REGION_ACCESS_PDR ? "Yes " : "No ")
.arg(masterSection->BiosWrite & FLASH_DESCRIPTOR_REGION_ACCESS_PDR ? "Yes " : "No "); .arg(masterSection->BiosWrite & FLASH_DESCRIPTOR_REGION_ACCESS_PDR ? "Yes " : "No ");
} }
else if (descriptorVersion == 2) { else if (descriptorVersion >= 2) {
const FLASH_DESCRIPTOR_MASTER_SECTION_V2* masterSection = (const FLASH_DESCRIPTOR_MASTER_SECTION_V2*)calculateAddress8(descriptor, descriptorMap->MasterBase); const FLASH_DESCRIPTOR_MASTER_SECTION_V2* masterSection = (const FLASH_DESCRIPTOR_MASTER_SECTION_V2*)calculateAddress8(descriptor, descriptorMap->MasterBase);
info += tr("\nRegion access settings:"); info += tr("\nRegion access settings:");
info += tr("\nBIOS: %1h %2h ME: %3h %4h\nGbE: %5h %6h EC: %7h %8h") info += tr("\nBIOS: %1h %2h ME: %3h %4h\nGbE: %5h %6h EC: %7h %8h")
@ -580,7 +584,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
result = parsePdrRegion(pdr, pdrIndex, index); result = parsePdrRegion(pdr, pdrIndex, index);
} }
// Parse EC region // Parse EC region
else if (descriptorVersion == 2 && offsets.at(i) == ecBegin) { else if (descriptorVersion >= 2 && offsets.at(i) == ecBegin) {
QModelIndex ecIndex; QModelIndex ecIndex;
result = parseEcRegion(ec, ecIndex, index); result = parseEcRegion(ec, ecIndex, index);
} }
@ -599,7 +603,7 @@ UINT8 FfsEngine::parseIntelImage(const QByteArray & intelImage, QModelIndex & in
IntelDataEnd = biosEnd; IntelDataEnd = biosEnd;
else if (LastRegionOffset == pdrBegin) else if (LastRegionOffset == pdrBegin)
IntelDataEnd = pdrEnd; IntelDataEnd = pdrEnd;
else if (descriptorVersion == 2 && LastRegionOffset == ecBegin) else if (descriptorVersion >= 2 && LastRegionOffset == ecBegin)
IntelDataEnd = ecEnd; IntelDataEnd = ecEnd;
if (IntelDataEnd > (UINT32)intelImage.size()) { // Image file is truncated if (IntelDataEnd > (UINT32)intelImage.size()) { // Image file is truncated