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Partially revert ca4f3acc0e
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This commit is contained in:
Aiken Harris
2026-05-14 21:12:09 +02:00
parent ac675b037e
commit 6df6a012d2
2 changed files with 14 additions and 36 deletions
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25
xtoskrnl/ar/amd64/procsup.cc
View File

@@ -77,29 +77,13 @@ AR::ProcSup::IdentifyProcessor(VOID)
CpuRegisters.Leaf = CPUID_GET_VENDOR_STRING;
AR::CpuFunc::CpuId(&CpuRegisters);
/* Store CPU vendor name in processor control block */
/* Store CPU vendor in processor control block */
Prcb->CpuId.Vendor = (CPU_VENDOR)CpuRegisters.Ebx;
*(PULONG)&Prcb->CpuId.VendorName[0] = CpuRegisters.Ebx;
*(PULONG)&Prcb->CpuId.VendorName[4] = CpuRegisters.Edx;
*(PULONG)&Prcb->CpuId.VendorName[8] = CpuRegisters.Ecx;
Prcb->CpuId.VendorName[12] = '\0';
/* Resolve CPU vendor */
if(RTL::Memory::CompareMemory(Prcb->CpuId.VendorName, "AuthenticAMD", 12) == 12)
{
/* AMD CPU */
Prcb->CpuId.Vendor = CPU_VENDOR_AMD;
}
else if(RTL::Memory::CompareMemory(Prcb->CpuId.VendorName, "GenuineIntel", 12) == 12)
{
/* Intel CPU */
Prcb->CpuId.Vendor = CPU_VENDOR_INTEL;
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* Get CPU standard features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_STANDARD1_FEATURES;
@@ -134,6 +118,11 @@ AR::ProcSup::IdentifyProcessor(VOID)
Prcb->CpuId.Model += (CpuSignature.ExtendedModel << 4);
}
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* Identify processor features */
IdentifyProcessorFeatures();

25
xtoskrnl/ar/i686/procsup.cc
View File

@@ -70,29 +70,13 @@ AR::ProcSup::IdentifyProcessor(VOID)
CpuRegisters.Leaf = CPUID_GET_VENDOR_STRING;
AR::CpuFunc::CpuId(&CpuRegisters);
/* Store CPU vendor name in processor control block */
/* Store CPU vendor in processor control block */
Prcb->CpuId.Vendor = (CPU_VENDOR)CpuRegisters.Ebx;
*(PULONG)&Prcb->CpuId.VendorName[0] = CpuRegisters.Ebx;
*(PULONG)&Prcb->CpuId.VendorName[4] = CpuRegisters.Edx;
*(PULONG)&Prcb->CpuId.VendorName[8] = CpuRegisters.Ecx;
Prcb->CpuId.VendorName[12] = '\0';
/* Resolve CPU vendor */
if(RTL::Memory::CompareMemory(Prcb->CpuId.VendorName, "AuthenticAMD", 12) == 12)
{
/* AMD CPU */
Prcb->CpuId.Vendor = CPU_VENDOR_AMD;
}
else if(RTL::Memory::CompareMemory(Prcb->CpuId.VendorName, "GenuineIntel", 12) == 12)
{
/* Intel CPU */
Prcb->CpuId.Vendor = CPU_VENDOR_INTEL;
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* Get CPU standard features */
RtlZeroMemory(&CpuRegisters, sizeof(CPUID_REGISTERS));
CpuRegisters.Leaf = CPUID_GET_STANDARD1_FEATURES;
@@ -127,6 +111,11 @@ AR::ProcSup::IdentifyProcessor(VOID)
Prcb->CpuId.Model += (CpuSignature.ExtendedModel << 4);
}
}
else
{
/* Unknown CPU vendor */
Prcb->CpuId.Vendor = CPU_VENDOR_UNKNOWN;
}
/* Identify processor features */
IdentifyProcessorFeatures();