diff options
| -rw-r--r-- | arch/arm64/kvm/arm.c | 15 | ||||
| -rw-r--r-- | arch/x86/kvm/irq.c | 15 | ||||
| -rw-r--r-- | include/linux/kvm_host.h | 2 | ||||
| -rw-r--r-- | virt/kvm/eventfd.c | 10 |
4 files changed, 11 insertions, 31 deletions
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 94fb2f096a20..04f2116927b1 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -2761,20 +2761,15 @@ void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, kvm_vgic_v4_unset_forwarding(irqfd->kvm, prod->irq); } -bool kvm_arch_irqfd_route_changed(struct kvm_kernel_irq_routing_entry *old, - struct kvm_kernel_irq_routing_entry *new) -{ - if (old->type != KVM_IRQ_ROUTING_MSI || - new->type != KVM_IRQ_ROUTING_MSI) - return true; - - return memcmp(&old->msi, &new->msi, sizeof(new->msi)); -} - void kvm_arch_update_irqfd_routing(struct kvm_kernel_irqfd *irqfd, struct kvm_kernel_irq_routing_entry *old, struct kvm_kernel_irq_routing_entry *new) { + if (old->type == KVM_IRQ_ROUTING_MSI && + new->type == KVM_IRQ_ROUTING_MSI && + !memcmp(&old->msi, &new->msi, sizeof(new->msi))) + return; + /* * Remapping the vLPI requires taking the its_lock mutex to resolve * the new translation. We're in spinlock land at this point, so no diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index b7b0fbc218b8..23e0acc07cb6 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -610,17 +610,12 @@ void kvm_arch_update_irqfd_routing(struct kvm_kernel_irqfd *irqfd, struct kvm_kernel_irq_routing_entry *old, struct kvm_kernel_irq_routing_entry *new) { - kvm_pi_update_irte(irqfd, new); -} - -bool kvm_arch_irqfd_route_changed(struct kvm_kernel_irq_routing_entry *old, - struct kvm_kernel_irq_routing_entry *new) -{ - if (old->type != KVM_IRQ_ROUTING_MSI || - new->type != KVM_IRQ_ROUTING_MSI) - return true; + if (old->type == KVM_IRQ_ROUTING_MSI && + new->type == KVM_IRQ_ROUTING_MSI && + !memcmp(&old->msi, &new->msi, sizeof(new->msi))) + return; - return !!memcmp(&old->msi, &new->msi, sizeof(new->msi)); + kvm_pi_update_irte(irqfd, new); } #ifdef CONFIG_KVM_IOAPIC diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 8e74ac0f90b1..fb9ec06aa807 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2413,8 +2413,6 @@ void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *); void kvm_arch_update_irqfd_routing(struct kvm_kernel_irqfd *irqfd, struct kvm_kernel_irq_routing_entry *old, struct kvm_kernel_irq_routing_entry *new); -bool kvm_arch_irqfd_route_changed(struct kvm_kernel_irq_routing_entry *, - struct kvm_kernel_irq_routing_entry *); #endif /* CONFIG_HAVE_KVM_IRQ_BYPASS */ #ifdef CONFIG_HAVE_KVM_INVALID_WAKEUPS diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 719b242fc935..59b1e64697f1 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -291,13 +291,6 @@ void __weak kvm_arch_update_irqfd_routing(struct kvm_kernel_irqfd *irqfd, { } - -bool __attribute__((weak)) kvm_arch_irqfd_route_changed( - struct kvm_kernel_irq_routing_entry *old, - struct kvm_kernel_irq_routing_entry *new) -{ - return true; -} #endif static int @@ -616,8 +609,7 @@ void kvm_irq_routing_update(struct kvm *kvm) irqfd_update(kvm, irqfd); #if IS_ENABLED(CONFIG_HAVE_KVM_IRQ_BYPASS) - if (irqfd->producer && - kvm_arch_irqfd_route_changed(&old, &irqfd->irq_entry)) + if (irqfd->producer) kvm_arch_update_irqfd_routing(irqfd, &old, &irqfd->irq_entry); #endif } |