Messages in this thread | | | Date | Mon, 2 Mar 2015 20:05:34 +0100 | From | Radim Krčmář <> | Subject | Re: [PATCH v2 2/2] x86: svm: make wbinvd faster |
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2015-03-02 12:04-0600, Joel Schopp: > From: David Kaplan <David.Kaplan@amd.com> > No need to re-decode WBINVD since we know what it is from the intercept. > > Signed-off-by: David Kaplan <David.Kaplan@amd.com> > [extracted from larger unlrelated patch, forward ported, tested] > Signed-off-by: Joel Schopp <joel.schopp@amd.com> > ---
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c > @@ -2774,6 +2774,13 @@ static int skinit_interception(struct vcpu_svm *svm) > return 1; > } > > +static int wbinvd_interception(struct vcpu_svm *svm) > +{ > + kvm_emulate_wbinvd(&svm->vcpu); > + return 1; > +} > + > +
(Squashing these lines would have been a nice improvement.)
> static int xsetbv_interception(struct vcpu_svm *svm) > { > u64 new_bv = kvm_read_edx_eax(&svm->vcpu);
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