diff options
| author | Sean Christopherson <seanjc@google.com> | 2021-12-08 04:52:33 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 20:14:49 +0300 |
| commit | a3c19d5beaad25fcaa703b251c72c3a22fc09100 (patch) | |
| tree | 379a265a93d06b9adb6757d47d424dd913080fc8 /arch/x86 | |
| parent | 54744e17f031cbc5c5b995b1e275df1520c8a739 (diff) | |
| download | linux-a3c19d5beaad25fcaa703b251c72c3a22fc09100.tar.xz | |
KVM: SVM: Nullify vcpu_(un)blocking() hooks if AVIC is disabled
Nullify svm_x86_ops.vcpu_(un)blocking if AVIC/APICv is disabled as the
hooks are necessary only to clear the vCPU's IsRunning entry in the
Physical APIC and to update IRTE entries if the VM has a pass-through
device attached.
Opportunistically rename the helpers to clarify their AVIC relationship.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211208015236.1616697-24-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm/avic.c | 4 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 7 | ||||
| -rw-r--r-- | arch/x86/kvm/svm/svm.h | 4 |
3 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index 522f859408cb..90364d02f22a 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -1027,7 +1027,7 @@ void avic_vcpu_put(struct kvm_vcpu *vcpu) WRITE_ONCE(*(svm->avic_physical_id_cache), entry); } -void svm_vcpu_blocking(struct kvm_vcpu *vcpu) +void avic_vcpu_blocking(struct kvm_vcpu *vcpu) { if (!kvm_vcpu_apicv_active(vcpu)) return; @@ -1052,7 +1052,7 @@ void svm_vcpu_blocking(struct kvm_vcpu *vcpu) preempt_enable(); } -void svm_vcpu_unblocking(struct kvm_vcpu *vcpu) +void avic_vcpu_unblocking(struct kvm_vcpu *vcpu) { int cpu; diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 9b15d59e6344..6d31d357a83b 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -4391,8 +4391,8 @@ static struct kvm_x86_ops svm_x86_ops __initdata = { .prepare_guest_switch = svm_prepare_guest_switch, .vcpu_load = svm_vcpu_load, .vcpu_put = svm_vcpu_put, - .vcpu_blocking = svm_vcpu_blocking, - .vcpu_unblocking = svm_vcpu_unblocking, + .vcpu_blocking = avic_vcpu_blocking, + .vcpu_unblocking = avic_vcpu_unblocking, .update_exception_bitmap = svm_update_exception_bitmap, .get_msr_feature = svm_get_msr_feature, @@ -4682,6 +4682,9 @@ static __init int svm_hardware_setup(void) pr_info("AVIC enabled\n"); amd_iommu_register_ga_log_notifier(&avic_ga_log_notifier); + } else { + svm_x86_ops.vcpu_blocking = NULL; + svm_x86_ops.vcpu_unblocking = NULL; } if (vls) { diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 5178f6b245e1..47ef8f4a9358 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -592,8 +592,8 @@ int svm_deliver_avic_intr(struct kvm_vcpu *vcpu, int vec); bool svm_dy_apicv_has_pending_interrupt(struct kvm_vcpu *vcpu); int svm_update_pi_irte(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, bool set); -void svm_vcpu_blocking(struct kvm_vcpu *vcpu); -void svm_vcpu_unblocking(struct kvm_vcpu *vcpu); +void avic_vcpu_blocking(struct kvm_vcpu *vcpu); +void avic_vcpu_unblocking(struct kvm_vcpu *vcpu); /* sev.c */ |