Messages in this thread | | | Date | Mon, 2 Mar 2015 14:38:44 +0100 | From | Radim Krčmář <> | Subject | Re: [PATCH] x86: svm: use kvm_fast_pio_in() |
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2015-02-27 18:04-0600, Joel Schopp: > From: David Kaplan <David.Kaplan@amd.com> > > We can make the in instruction go faster the same way the out instruction is > already. > > 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> > --- > arch/x86/kvm/svm.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c > @@ -1907,6 +1907,8 @@ static int io_interception(struct vcpu_svm *svm) > svm->next_rip = svm->vmcb->control.exit_info_2; > skip_emulated_instruction(&svm->vcpu); > > + if (in) > + return kvm_fast_pio_in(vcpu, size, port);
Have I missed a patch that defined kvm_fast_pio_in()?
Thanks.
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