305 kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd_assign()  argument
322 	irqfd->gsi = args->gsi;  in kvm_irqfd_assign()
328 	f = fdget(args->fd);  in kvm_irqfd_assign()
342 	if (args->flags & KVM_IRQFD_FLAG_RESAMPLE) {  in kvm_irqfd_assign()
345 		resamplefd = eventfd_ctx_fdget(args->resamplefd);  in kvm_irqfd_assign()
526 kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd_deassign()  argument
531 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_irqfd_deassign()
538 		if (irqfd->eventfd == eventfd && irqfd->gsi == args->gsi) {  in kvm_irqfd_deassign()
566 kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd()  argument
568 	if (args->flags & ~(KVM_IRQFD_FLAG_DEASSIGN | KVM_IRQFD_FLAG_RESAMPLE))  in kvm_irqfd()
571 	if (args->flags & KVM_IRQFD_FLAG_DEASSIGN)  in kvm_irqfd()
572 		return kvm_irqfd_deassign(kvm, args);  in kvm_irqfd()
574 	return kvm_irqfd_assign(kvm, args);  in kvm_irqfd()
776 				struct kvm_ioeventfd *args)  in kvm_assign_ioeventfd_idx()  argument
783 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_assign_ioeventfd_idx()
794 	p->addr    = args->addr;  in kvm_assign_ioeventfd_idx()
796 	p->length  = args->len;  in kvm_assign_ioeventfd_idx()
800 	if (args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH)  in kvm_assign_ioeventfd_idx()
801 		p->datamatch = args->datamatch;  in kvm_assign_ioeventfd_idx()
839 			   struct kvm_ioeventfd *args)  in kvm_deassign_ioeventfd_idx()  argument
845 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_deassign_ioeventfd_idx()
852 		bool wildcard = !(args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH);  in kvm_deassign_ioeventfd_idx()
856 		    p->addr != args->addr  ||  in kvm_deassign_ioeventfd_idx()
857 		    p->length != args->len ||  in kvm_deassign_ioeventfd_idx()
861 		if (!p->wildcard && p->datamatch != args->datamatch)  in kvm_deassign_ioeventfd_idx()
878 static int kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_deassign_ioeventfd()  argument
880 	enum kvm_bus bus_idx = ioeventfd_bus_from_flags(args->flags);  in kvm_deassign_ioeventfd()
881 	int ret = kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_deassign_ioeventfd()
883 	if (!args->len && bus_idx == KVM_MMIO_BUS)  in kvm_deassign_ioeventfd()
884 		kvm_deassign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);  in kvm_deassign_ioeventfd()
890 kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_assign_ioeventfd()  argument
895 	bus_idx = ioeventfd_bus_from_flags(args->flags);  in kvm_assign_ioeventfd()
897 	switch (args->len) {  in kvm_assign_ioeventfd()
909 	if (args->addr + args->len < args->addr)  in kvm_assign_ioeventfd()
913 	if (args->flags & ~KVM_IOEVENTFD_VALID_FLAG_MASK)  in kvm_assign_ioeventfd()
917 	if (!args->len &&  in kvm_assign_ioeventfd()
918 	    args->flags & (KVM_IOEVENTFD_FLAG_PIO |  in kvm_assign_ioeventfd()
922 	ret = kvm_assign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_assign_ioeventfd()
929 	if (!args->len && bus_idx == KVM_MMIO_BUS) {  in kvm_assign_ioeventfd()
930 		ret = kvm_assign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);  in kvm_assign_ioeventfd()
938 	kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_assign_ioeventfd()
944 kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_ioeventfd()  argument
946 	if (args->flags & KVM_IOEVENTFD_FLAG_DEASSIGN)  in kvm_ioeventfd()
947 		return kvm_deassign_ioeventfd(kvm, args);  in kvm_ioeventfd()
949 	return kvm_assign_ioeventfd(kvm, args);  in kvm_ioeventfd()