On Wed, Jun 25, 2025, Xin Li wrote: > On 6/24/2025 9:38 AM, Sean Christopherson wrote: > > > --- > > > arch/x86/kvm/cpuid.c | 2 ++ > > > 1 file changed, 2 insertions(+) > > > > > > diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c > > > index 5e4d4934c0d3..8f290273aee1 100644 > > > --- a/arch/x86/kvm/cpuid.c > > > +++ b/arch/x86/kvm/cpuid.c > > > @@ -992,6 +992,8 @@ void kvm_set_cpu_caps(void) > > > F(FZRM), > > > F(FSRS), > > > F(FSRC), > > > + F(FRED), > > > + F(LKGS), > > > > These need to be X86_64_F, no? > > Yes. Both LKGS and FRED are 64-bit only features. > > However I assume KVM is 64-bit only now, so X86_64_F is essentially F, > right? Nope, KVM still supports 32-bit builds. There are plans/efforts to kill off 32-bit KVM x86, but we're not quite there yet.
