diff options
| -rw-r--r-- | kvm-all.c | 42 | ||||
| -rw-r--r-- | kvm.h | 1 |
2 files changed, 43 insertions, 0 deletions
diff --git a/kvm-all.c b/kvm-all.c index f96be21034..e2abfb98d6 100644 --- a/kvm-all.c +++ b/kvm-all.c @@ -963,6 +963,30 @@ static void kvm_add_routing_entry(KVMState *s, kvm_irqchip_commit_routes(s); } +static int kvm_update_routing_entry(KVMState *s, + struct kvm_irq_routing_entry *new_entry) +{ + struct kvm_irq_routing_entry *entry; + int n; + + for (n = 0; n < s->irq_routes->nr; n++) { + entry = &s->irq_routes->entries[n]; + if (entry->gsi != new_entry->gsi) { + continue; + } + + entry->type = new_entry->type; + entry->flags = new_entry->flags; + entry->u = new_entry->u; + + kvm_irqchip_commit_routes(s); + + return 0; + } + + return -ESRCH; +} + void kvm_irqchip_add_irq_route(KVMState *s, int irq, int irqchip, int pin) { struct kvm_irq_routing_entry e; @@ -1125,6 +1149,24 @@ int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg) return virq; } +int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg) +{ + struct kvm_irq_routing_entry kroute; + + if (!kvm_irqchip_in_kernel()) { + return -ENOSYS; + } + + kroute.gsi = virq; + kroute.type = KVM_IRQ_ROUTING_MSI; + kroute.flags = 0; + kroute.u.msi.address_lo = (uint32_t)msg.address; + kroute.u.msi.address_hi = msg.address >> 32; + kroute.u.msi.data = msg.data; + + return kvm_update_routing_entry(s, &kroute); +} + static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign) { struct kvm_irqfd irqfd = { diff --git a/kvm.h b/kvm.h index 37d1f8166a..5cefe3a1a3 100644 --- a/kvm.h +++ b/kvm.h @@ -270,6 +270,7 @@ int kvm_set_ioeventfd_mmio(int fd, uint32_t adr, uint32_t val, bool assign, int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign); 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); |