diff options
Diffstat (limited to 'virt/kvm/eventfd.c')
-rw-r--r-- | virt/kvm/eventfd.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index f59c1e8de7a2..7d7e2aaffece 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c | |||
@@ -198,7 +198,7 @@ static void irqfd_update(struct kvm *kvm, struct _irqfd *irqfd, | |||
198 | } | 198 | } |
199 | 199 | ||
200 | static int | 200 | static int |
201 | kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi) | 201 | kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) |
202 | { | 202 | { |
203 | struct kvm_irq_routing_table *irq_rt; | 203 | struct kvm_irq_routing_table *irq_rt; |
204 | struct _irqfd *irqfd, *tmp; | 204 | struct _irqfd *irqfd, *tmp; |
@@ -212,12 +212,12 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi) | |||
212 | return -ENOMEM; | 212 | return -ENOMEM; |
213 | 213 | ||
214 | irqfd->kvm = kvm; | 214 | irqfd->kvm = kvm; |
215 | irqfd->gsi = gsi; | 215 | irqfd->gsi = args->gsi; |
216 | INIT_LIST_HEAD(&irqfd->list); | 216 | INIT_LIST_HEAD(&irqfd->list); |
217 | INIT_WORK(&irqfd->inject, irqfd_inject); | 217 | INIT_WORK(&irqfd->inject, irqfd_inject); |
218 | INIT_WORK(&irqfd->shutdown, irqfd_shutdown); | 218 | INIT_WORK(&irqfd->shutdown, irqfd_shutdown); |
219 | 219 | ||
220 | file = eventfd_fget(fd); | 220 | file = eventfd_fget(args->fd); |
221 | if (IS_ERR(file)) { | 221 | if (IS_ERR(file)) { |
222 | ret = PTR_ERR(file); | 222 | ret = PTR_ERR(file); |
223 | goto fail; | 223 | goto fail; |
@@ -298,19 +298,19 @@ kvm_eventfd_init(struct kvm *kvm) | |||
298 | * shutdown any irqfd's that match fd+gsi | 298 | * shutdown any irqfd's that match fd+gsi |
299 | */ | 299 | */ |
300 | static int | 300 | static int |
301 | kvm_irqfd_deassign(struct kvm *kvm, int fd, int gsi) | 301 | kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args) |
302 | { | 302 | { |
303 | struct _irqfd *irqfd, *tmp; | 303 | struct _irqfd *irqfd, *tmp; |
304 | struct eventfd_ctx *eventfd; | 304 | struct eventfd_ctx *eventfd; |
305 | 305 | ||
306 | eventfd = eventfd_ctx_fdget(fd); | 306 | eventfd = eventfd_ctx_fdget(args->fd); |
307 | if (IS_ERR(eventfd)) | 307 | if (IS_ERR(eventfd)) |
308 | return PTR_ERR(eventfd); | 308 | return PTR_ERR(eventfd); |
309 | 309 | ||
310 | spin_lock_irq(&kvm->irqfds.lock); | 310 | spin_lock_irq(&kvm->irqfds.lock); |
311 | 311 | ||
312 | list_for_each_entry_safe(irqfd, tmp, &kvm->irqfds.items, list) { | 312 | list_for_each_entry_safe(irqfd, tmp, &kvm->irqfds.items, list) { |
313 | if (irqfd->eventfd == eventfd && irqfd->gsi == gsi) { | 313 | if (irqfd->eventfd == eventfd && irqfd->gsi == args->gsi) { |
314 | /* | 314 | /* |
315 | * This rcu_assign_pointer is needed for when | 315 | * This rcu_assign_pointer is needed for when |
316 | * another thread calls kvm_irq_routing_update before | 316 | * another thread calls kvm_irq_routing_update before |
@@ -338,12 +338,15 @@ kvm_irqfd_deassign(struct kvm *kvm, int fd, int gsi) | |||
338 | } | 338 | } |
339 | 339 | ||
340 | int | 340 | int |
341 | kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) | 341 | kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) |
342 | { | 342 | { |
343 | if (flags & KVM_IRQFD_FLAG_DEASSIGN) | 343 | if (args->flags & ~KVM_IRQFD_FLAG_DEASSIGN) |
344 | return kvm_irqfd_deassign(kvm, fd, gsi); | 344 | return -EINVAL; |
345 | |||
346 | if (args->flags & KVM_IRQFD_FLAG_DEASSIGN) | ||
347 | return kvm_irqfd_deassign(kvm, args); | ||
345 | 348 | ||
346 | return kvm_irqfd_assign(kvm, fd, gsi); | 349 | return kvm_irqfd_assign(kvm, args); |
347 | } | 350 | } |
348 | 351 | ||
349 | /* | 352 | /* |