diff options
| author | Wanpeng Li <wanpengli@tencent.com> | 2020-09-14 14:55:48 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-28 07:57:21 -0400 |
| commit | 4e810adb5362df366aee10ac05041fc7ba0eb2fe (patch) | |
| tree | af4e2594fcd059e546ac7e3fc0143366a76ca2ea /arch/x86/kvm/svm | |
| parent | 1a5488ef0dcf6af5b2a69144ad6732dd67e98146 (diff) | |
KVM: SVM: Analyze is_guest_mode() in svm_vcpu_run()
Analyze is_guest_mode() in svm_vcpu_run() instead of svm_exit_handlers_fastpath()
in conformity with VMX version.
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1600066548-4343-1-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 0f16113ee90e..a788ce16e4fa 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3393,8 +3393,7 @@ static void svm_cancel_injection(struct kvm_vcpu *vcpu) static fastpath_t svm_exit_handlers_fastpath(struct kvm_vcpu *vcpu) { - if (!is_guest_mode(vcpu) && - to_svm(vcpu)->vmcb->control.exit_code == SVM_EXIT_MSR && + if (to_svm(vcpu)->vmcb->control.exit_code == SVM_EXIT_MSR && to_svm(vcpu)->vmcb->control.exit_info_1) return handle_fastpath_set_msr_irqoff(vcpu); @@ -3459,7 +3458,6 @@ static noinstr void svm_vcpu_enter_exit(struct kvm_vcpu *vcpu, static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) { - fastpath_t exit_fastpath; struct vcpu_svm *svm = to_svm(vcpu); svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX]; @@ -3580,8 +3578,11 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) svm_handle_mce(svm); svm_complete_interrupts(svm); - exit_fastpath = svm_exit_handlers_fastpath(vcpu); - return exit_fastpath; + + if (is_guest_mode(vcpu)) + return EXIT_FASTPATH_NONE; + + return svm_exit_handlers_fastpath(vcpu); } static void svm_load_mmu_pgd(struct kvm_vcpu *vcpu, unsigned long root, |