On Mon, Jul 24, 2017 at 03:03:01PM -0500, Brijesh Singh wrote: > When SEV is active, on #NPF the page fault address will contain C-bit.
"... contain the C-bit." > We must clear the C-bit before handling the fault. > > Signed-off-by: Brijesh Singh <[email protected]> > --- > arch/x86/kvm/svm.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c > index 0bbd050..64b9f60 100644 > --- a/arch/x86/kvm/svm.c > +++ b/arch/x86/kvm/svm.c > @@ -2321,7 +2321,7 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned > long value) > > static int pf_interception(struct vcpu_svm *svm) > { > - u64 fault_address = svm->vmcb->control.exit_info_2; > + u64 fault_address = __sme_clr(svm->vmcb->control.exit_info_2); > u64 error_code = svm->vmcb->control.exit_info_1; > > return kvm_handle_page_fault(&svm->vcpu, error_code, fault_address, > -- Otherwise: Reviewed-by: Borislav Petkov <[email protected]> -- Regards/Gruss, Boris. SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
