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Partially implement ArpIdentifyProcessor()

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This commit is contained in:
Rafal Kupiec
2023-02-10 17:23:47 +01:00
parent e94cb2d3a7
commit d72002187d
2 changed files with 124 additions and 0 deletions
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62
xtoskrnl/ar/amd64/procsup.c
View File

@@ -85,7 +85,69 @@ XTAPI
VOID VOID
ArpIdentifyProcessor(VOID) ArpIdentifyProcessor(VOID)
{ {
PKPROCESSOR_CONTROL_BLOCK Prcb;
CPUID_REGISTERS CpuRegisters;
CPUID_SIGNATURE CpuSignature;
/* Not fully implemented yet */
UNIMPLEMENTED; UNIMPLEMENTED;
/* Get current processor control block */
Prcb = KeGetCurrentProcessorControlBlock();
/* Get CPU vendor by issueing CPUID instruction */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_VENDOR_STRING;
ArCpuId(&CpuRegisters);
/* Store CPU vendor in processor control block */
Prcb->CpuId.Vendor = CpuRegisters.Ebx;
Prcb->CpuId.VendorName[0] = CpuRegisters.Ebx;
Prcb->CpuId.VendorName[4] = CpuRegisters.Edx;
Prcb->CpuId.VendorName[8] = CpuRegisters.Ecx;
Prcb->CpuId.VendorName[12] = '\0';
/* Get CPU features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_CPU_FEATURES;
ArCpuId(&CpuRegisters);
/* Store CPU signature in processor control block */
CpuSignature = *(PCPUID_SIGNATURE)&CpuRegisters.Eax;
Prcb->CpuId.Family = CpuSignature.Family;
Prcb->CpuId.Model = CpuSignature.Model;
Prcb->CpuId.Stepping = CpuSignature.Stepping;
/* CPU vendor specific quirks */
if(Prcb->CpuId.Vendor == CPU_VENDOR_AMD)
{
/* AMD CPU */
Prcb->CpuId.Family = Prcb->CpuId.Family + CpuSignature.ExtendedFamily;
if(Prcb->CpuId.Model == 0xF)
{
Prcb->CpuId.Model = Prcb->CpuId.Model + (CpuSignature.ExtendedModel << 4);
}
}
else if(Prcb->CpuId.Vendor == CPU_VENDOR_INTEL)
{
/* Intel CPU */
if(Prcb->CpuId.Family == 0xF)
{
Prcb->CpuId.Family = Prcb->CpuId.Family + CpuSignature.ExtendedFamily;
}
if((Prcb->CpuId.Family == 0xF) || (Prcb->CpuId.Family == 0x6))
{
Prcb->CpuId.Model = Prcb->CpuId.Model + (CpuSignature.ExtendedModel << 4);
}
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* TODO: Store a list of CPU features in processor control block */
} }
/** /**

62
xtoskrnl/ar/i686/procsup.c
View File

@@ -83,7 +83,69 @@ XTAPI
VOID VOID
ArpIdentifyProcessor(VOID) ArpIdentifyProcessor(VOID)
{ {
PKPROCESSOR_CONTROL_BLOCK Prcb;
CPUID_REGISTERS CpuRegisters;
CPUID_SIGNATURE CpuSignature;
/* Not fully implemented yet */
UNIMPLEMENTED; UNIMPLEMENTED;
/* Get current processor control block */
Prcb = KeGetCurrentProcessorControlBlock();
/* Get CPU vendor by issueing CPUID instruction */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_VENDOR_STRING;
ArCpuId(&CpuRegisters);
/* Store CPU vendor in processor control block */
Prcb->CpuId.Vendor = CpuRegisters.Ebx;
Prcb->CpuId.VendorName[0] = CpuRegisters.Ebx;
Prcb->CpuId.VendorName[4] = CpuRegisters.Edx;
Prcb->CpuId.VendorName[8] = CpuRegisters.Ecx;
Prcb->CpuId.VendorName[12] = '\0';
/* Get CPU features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_CPU_FEATURES;
ArCpuId(&CpuRegisters);
/* Store CPU signature in processor control block */
CpuSignature = *(PCPUID_SIGNATURE)&CpuRegisters.Eax;
Prcb->CpuId.Family = CpuSignature.Family;
Prcb->CpuId.Model = CpuSignature.Model;
Prcb->CpuId.Stepping = CpuSignature.Stepping;
/* CPU vendor specific quirks */
if(Prcb->CpuId.Vendor == CPU_VENDOR_AMD)
{
/* AMD CPU */
Prcb->CpuId.Family = Prcb->CpuId.Family + CpuSignature.ExtendedFamily;
if(Prcb->CpuId.Model == 0xF)
{
Prcb->CpuId.Model = Prcb->CpuId.Model + (CpuSignature.ExtendedModel << 4);
}
}
else if(Prcb->CpuId.Vendor == CPU_VENDOR_INTEL)
{
/* Intel CPU */
if(Prcb->CpuId.Family == 0xF)
{
Prcb->CpuId.Family = Prcb->CpuId.Family + CpuSignature.ExtendedFamily;
}
if((Prcb->CpuId.Family == 0xF) || (Prcb->CpuId.Family == 0x6))
{
Prcb->CpuId.Model = Prcb->CpuId.Model + (CpuSignature.ExtendedModel << 4);
}
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* TODO: Store a list of CPU features in processor control block */
} }
/** /**