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Differential D20281 Diff 57465 head/sys/dev/random/ivy.c

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head/sys/dev/random/ivy.c

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static int static int
x86_unimpl_store(u_long *buf __unused) x86_unimpl_store(u_long *buf __unused)
{ {
panic("%s called", __func__); panic("%s called", __func__);
} }
DEFINE_IFUNC(static, int, x86_rng_store, (u_long *buf), static) DEFINE_IFUNC(static, int, x86_rng_store, (u_long *buf))
{ {
has_rdrand = (cpu_feature2 & CPUID2_RDRAND); has_rdrand = (cpu_feature2 & CPUID2_RDRAND);
has_rdseed = (cpu_stdext_feature & CPUID_STDEXT_RDSEED); has_rdseed = (cpu_stdext_feature & CPUID_STDEXT_RDSEED);
if (has_rdseed) if (has_rdseed)
return (x86_rdseed_store); return (x86_rdseed_store);
else if (has_rdrand) else if (has_rdrand)
return (x86_rdrand_store); return (x86_rdrand_store);
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