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add Hygon Dhyana SoC support #45

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add Hygon Dhyana SoC support #45

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10 changes: 9 additions & 1 deletion src-cryptopp/cpu.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,14 @@ static inline bool IsAMD(const word32 output[4])
(output[3] /*EDX*/ == 0x69746E65);
}

static inline bool IsHygon(const word32 output[4])
{
// This is the "HygonGenuine" string.
return (output[1] /*EBX*/ == 0x6f677948) &&
(output[2] /*ECX*/ == 0x656e6975) &&
(output[3] /*EDX*/ == 0x6e65476e);
}

static inline bool IsVIA(const word32 output[4])
{
// This is the "CentaurHauls" string. Some non-PadLock's can return "VIA VIA VIA "
Expand Down Expand Up @@ -270,7 +278,7 @@ void DetectX86Features()
g_hasRDSEED = !!(cpuid3[1] /*EBX*/ & RDSEED_FLAG);
}
}
else if (IsAMD(cpuid))
else if (IsAMD(cpuid) || IsHygon(cpuid))
{
static const unsigned int RDRAND_FLAG = (1 << 30);

Expand Down