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Date: Fri, 11 Dec 2020 08:33:46 +0800 From: Stephen Zhang <stephenzhangzsd@...il.com> To: pbonzini@...hat.com, seanjc@...gle.com, vkuznets@...hat.com, wanpengli@...cent.com, jmattson@...gle.com, joro@...tes.org, tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, x86@...nel.org, hpa@...or.com Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, Stephen Zhang <stephenzhangzsd@...il.com> Subject: [PATCH] kvm:vmx:changes in handle_io() for code cleanup. Signed-off-by: Stephen Zhang <stephenzhangzsd@...il.com> --- arch/x86/kvm/vmx/vmx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 47b8357..e1954df 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -4899,15 +4899,15 @@ static int handle_triple_fault(struct kvm_vcpu *vcpu) static int handle_io(struct kvm_vcpu *vcpu) { unsigned long exit_qualification; - int size, in, string; + int size, in; unsigned port; exit_qualification = vmx_get_exit_qual(vcpu); - string = (exit_qualification & 16) != 0; ++vcpu->stat.io_exits; - if (string) + /* String instruction */ + if (exit_qualification & BIT(4)) return kvm_emulate_instruction(vcpu, 0); port = exit_qualification >> 16; -- 1.8.3.1
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