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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-26 15:05:27 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-05-27 19:11:12 +0200 |
| commit | c6b22f59d694d0caf61aefb262d9639b3d9661d5 (patch) | |
| tree | 11fb739c58d4d0835f03330062274c195f7e9fc2 /arch | |
| parent | KVM: nSVM: Preserve registers modifications done before nested_svm_vmexit() (diff) | |
| download | linux-c6b22f59d694d0caf61aefb262d9639b3d9661d5.tar.xz linux-c6b22f59d694d0caf61aefb262d9639b3d9661d5.zip | |
KVM: x86: track manually whether an event has been injected
Instead of calling kvm_event_needs_reinjection, track its
future return value in a variable. This will be useful in
the next patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 329bdd2eb2cf..77b9b4e66673 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -7717,11 +7717,14 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu) static int inject_pending_event(struct kvm_vcpu *vcpu) { int r; + bool can_inject = true; /* try to reinject previous events if any */ - if (vcpu->arch.exception.injected) + if (vcpu->arch.exception.injected) { kvm_x86_ops.queue_exception(vcpu); + can_inject = false; + } /* * Do not inject an NMI or interrupt if there is a pending * exception. Exceptions and interrupts are recognized at @@ -7737,10 +7740,13 @@ static int inject_pending_event(struct kvm_vcpu *vcpu) * fully complete the previous instruction. */ else if (!vcpu->arch.exception.pending) { - if (vcpu->arch.nmi_injected) + if (vcpu->arch.nmi_injected) { kvm_x86_ops.set_nmi(vcpu); - else if (vcpu->arch.interrupt.injected) + can_inject = false; + } else if (vcpu->arch.interrupt.injected) { kvm_x86_ops.set_irq(vcpu); + can_inject = false; + } } WARN_ON_ONCE(vcpu->arch.exception.injected && @@ -7790,10 +7796,11 @@ static int inject_pending_event(struct kvm_vcpu *vcpu) } kvm_x86_ops.queue_exception(vcpu); + can_inject = false; } - /* Don't consider new event if we re-injected an event */ - if (kvm_event_needs_reinjection(vcpu)) + /* Finish re-injection before considering new events */ + if (!can_inject) return 0; if (vcpu->arch.smi_pending && |