private BasicCpu GetLocalCpuNode()
{
if (CpuIdLib.hascpuid() == 0)
{
throw new PlatformNotSupportedException("CPUID instruction not supported");
}
CpuIdLib.CpuIdInfo[] data = new CpuIdLib.CpuIdInfo[MaxCpuLeaves];
int r = CpuIdLib.iddump(data, Marshal.SizeOf(data[0]) * data.Length);
return(new BasicCpu(data, 0, r));
}
public override CpuIdRegister GetCpuId(int function, int subfunction)
{
CpuIdRegister result = base.GetCpuId(function, subfunction);
if (result == null)
{
// It's not cached, so query the CPU for it. Note, we assume that each EAX/ECX pair always returns the
// same result for the same CPU core/thread.
CpuIdLib.cpuid(function, subfunction, out int eax, out int ebx, out int ecx, out int edx);
result = new CpuIdRegister(function, subfunction, new int[] { eax, ebx, ecx, edx });
AddRegister(result);
}
return(result);
}
private IEnumerable <BasicCpu> GetLocalCpuNodes()
{
if (CpuIdLib.hascpuid() == 0)
{
throw new PlatformNotSupportedException("CPUID instruction not supported");
}
CpuIdLib.CpuIdInfo[] data = new CpuIdLib.CpuIdInfo[MaxCpuLeaves * MaxCpus];
int r = CpuIdLib.iddumpall(data, Marshal.SizeOf(data[0]) * data.Length);
// Each CPU has the first element with EAX=0xFFFFFFFF and the CPU number as ECX. This isn't captured by the
// CPUID instruction, but a part of the library to allow separating the CPU information
List <BasicCpu> cpus = new List <BasicCpu>();
int cpustart = 0;
for (int i = 0; i < r; i++)
{
if (data[i].veax == -1)
{
// Describes the start of a CPU node.
if (i - cpustart > 0)
{
// Process the data that we had.
BasicCpu cpu = new BasicCpu(data, cpustart + 1, i - cpustart - 1);
cpus.Add(cpu);
}
cpustart = i;
}
}
if (r - cpustart > 0)
{
// Process the data that we had.
BasicCpu cpu = new BasicCpu(data, cpustart + 1, r - cpustart - 1);
cpus.Add(cpu);
}
return(cpus);
}
