On Sat, Apr 11, 2015 at 12:01:10AM +0200, Borislav Petkov wrote: > > diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c > > index a220239..e7f5667 100644 > > --- a/arch/x86/kernel/cpu/amd.c > > +++ b/arch/x86/kernel/cpu/amd.c > > @@ -551,6 +551,9 @@ static void init_amd_k8(struct cpuinfo_x86 *c) > > if ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58) > > set_cpu_cap(c, X86_FEATURE_REP_GOOD); > > > > + /* Early steppings needed a mfence on swapgs. */ > > + set_cpu_cap(c, X86_BUG_SWAPGS_MFENCE); > > set_cpu_bug() > > and this should not be set on all K8 but for the early steppings only > which need it.
I don't know which one, but I don't think it really matters. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
