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Enhance CPU identification with standard and extended feature support

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This commit is contained in:
Pedro Valadés
2025-10-05 21:01:41 +02:00
parent ec4e8c416c
commit 46cc5072af
4 changed files with 71 additions and 8 deletions
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28
xtoskrnl/ar/i686/procsup.cc
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@@ -59,9 +59,6 @@ AR::ProcSup::IdentifyProcessor(VOID)
CPUID_REGISTERS CpuRegisters;
CPUID_SIGNATURE CpuSignature;
/* Not fully implemented yet */
UNIMPLEMENTED;
/* Get current processor control block */
Prcb = KE::Processor::GetCurrentProcessorControlBlock();
@@ -117,7 +114,30 @@ AR::ProcSup::IdentifyProcessor(VOID)
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* TODO: Store a list of CPU features in processor control block */
/* Get CPU standard features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_STANDARD1_FEATURES;
CpuFunc::CpuId(&CpuRegisters);
/* Store CPU standard features in processor control block */
Prcb->CpuId.StandardFeaturesEcx = CpuRegisters.Ecx;
Prcb->CpuId.StandardFeaturesEdx = CpuRegisters.Edx;
/* Get CPU extended features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = 0x80000001;
CpuFunc::CpuId(&CpuRegisters);
/* Store CPU extended features in processor control block */
Prcb->CpuId.ExtendedFeaturesEcx = CpuRegisters.Ecx;
Prcb->CpuId.ExtendedFeaturesEdx = CpuRegisters.Edx;
/* Print CPU information */
DebugPrint(L"CPU: Vendor %hs, Family 0x%X, Model 0x%X, Stepping 0x%X\n",
Prcb->CpuId.VendorName,
Prcb->CpuId.Family,
Prcb->CpuId.Model,
Prcb->CpuId.Stepping);
}
/**