diff options
| -rw-r--r-- | hw/misc/vfio.c | 4 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.c | 2 | ||||
| -rw-r--r-- | include/sysemu/kvm.h | 3 | ||||
| -rw-r--r-- | kvm-all.c | 17 |
4 files changed, 18 insertions, 8 deletions
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index ad8ce770dc..54af34a707 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -646,7 +646,7 @@ static int vfio_msix_vector_do_use(PCIDevice *pdev, unsigned int nr, vector->virq = msg ? kvm_irqchip_add_msi_route(kvm_state, *msg) : -1; if (vector->virq < 0 || kvm_irqchip_add_irqfd_notifier(kvm_state, &vector->interrupt, - vector->virq) < 0) { + NULL, vector->virq) < 0) { if (vector->virq >= 0) { kvm_irqchip_release_virq(kvm_state, vector->virq); vector->virq = -1; @@ -814,7 +814,7 @@ retry: vector->virq = kvm_irqchip_add_msi_route(kvm_state, msg); if (vector->virq < 0 || kvm_irqchip_add_irqfd_notifier(kvm_state, &vector->interrupt, - vector->virq) < 0) { + NULL, vector->virq) < 0) { qemu_set_fd_handler(event_notifier_get_fd(&vector->interrupt), vfio_msi_interrupt, NULL, vector); } diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index c38cfd1515..c4db4070ce 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -508,7 +508,7 @@ static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); EventNotifier *n = virtio_queue_get_guest_notifier(vq); int ret; - ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, irqfd->virq); + ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, NULL, irqfd->virq); return ret; } diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h index f8ac448e0b..ce3efaf210 100644 --- a/include/sysemu/kvm.h +++ b/include/sysemu/kvm.h @@ -309,7 +309,8 @@ int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg); int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg); void kvm_irqchip_release_virq(KVMState *s, int virq); -int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq); +int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, + EventNotifier *rn, int virq); int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq); void kvm_pc_gsi_handler(void *opaque, int n, int level); void kvm_pc_setup_irq_routing(bool pci_enabled); @@ -1230,7 +1230,8 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg) return kvm_update_routing_entry(s, &kroute); } -static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign) +static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int rfd, int virq, + bool assign) { struct kvm_irqfd irqfd = { .fd = fd, @@ -1238,6 +1239,11 @@ static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign) .flags = assign ? 0 : KVM_IRQFD_FLAG_DEASSIGN, }; + if (rfd != -1) { + irqfd.flags |= KVM_IRQFD_FLAG_RESAMPLE; + irqfd.resamplefd = rfd; + } + if (!kvm_irqfds_enabled()) { return -ENOSYS; } @@ -1276,14 +1282,17 @@ int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg) } #endif /* !KVM_CAP_IRQ_ROUTING */ -int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq) +int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, + EventNotifier *rn, int virq) { - return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n), virq, true); + return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n), + rn ? event_notifier_get_fd(rn) : -1, virq, true); } int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq) { - return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n), virq, false); + return kvm_irqchip_assign_irqfd(s, event_notifier_get_fd(n), -1, virq, + false); } static int kvm_irqchip_create(KVMState *s) |