diff options
Diffstat (limited to 'kvm-all.c')
| -rw-r--r-- | kvm-all.c | 52 |
1 files changed, 22 insertions, 30 deletions
@@ -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) @@ -1391,6 +1400,13 @@ int kvm_init(void) goto err; } + if (max_cpus > max_vcpus) { + ret = -EINVAL; + fprintf(stderr, "Number of hotpluggable cpus requested (%d) exceeds max cpus " + "supported by KVM (%d)\n", max_cpus, max_vcpus); + goto err; + } + s->vmfd = kvm_ioctl(s, KVM_CREATE_VM, 0); if (s->vmfd < 0) { #ifdef TARGET_S390X @@ -1499,32 +1515,8 @@ static void kvm_handle_io(uint16_t port, void *data, int direction, int size, uint8_t *ptr = data; for (i = 0; i < count; i++) { - if (direction == KVM_EXIT_IO_IN) { - switch (size) { - case 1: - stb_p(ptr, cpu_inb(port)); - break; - case 2: - stw_p(ptr, cpu_inw(port)); - break; - case 4: - stl_p(ptr, cpu_inl(port)); - break; - } - } else { - switch (size) { - case 1: - cpu_outb(port, ldub_p(ptr)); - break; - case 2: - cpu_outw(port, lduw_p(ptr)); - break; - case 4: - cpu_outl(port, ldl_p(ptr)); - break; - } - } - + address_space_rw(&address_space_io, port, ptr, size, + direction == KVM_EXIT_IO_OUT); ptr += size; } } |