On Thu, Jun 27, 2019 at 11:37 AM Jim Mattson <jmattson@xxxxxxxxxx> wrote: > > This bit is purely advisory. Passing it through to the guest indicates > that the virtual processor, like the physical processor, prefers that > STIBP is only set once during boot and not changed. > > Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx> > --- > arch/x86/kvm/cpuid.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > index 4992e7c99588..e52f0b20d2f0 100644 > --- a/arch/x86/kvm/cpuid.c > +++ b/arch/x86/kvm/cpuid.c > @@ -377,7 +377,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, > /* cpuid 0x80000008.ebx */ > const u32 kvm_cpuid_8000_0008_ebx_x86_features = > F(WBNOINVD) | F(AMD_IBPB) | F(AMD_IBRS) | F(AMD_SSBD) | F(VIRT_SSBD) | > - F(AMD_SSB_NO) | F(AMD_STIBP); > + F(AMD_SSB_NO) | F(AMD_STIBP) | F(AMD_STIBP_ALWAYS_ON); > > /* cpuid 0xC0000001.edx */ > const u32 kvm_cpuid_C000_0001_edx_x86_features = > -- > 2.22.0.410.gd8fdbe21b5-goog > Reviewed-by: Marc Orr <marcorr@xxxxxxxxxx>
