284 kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd_assign()  argument
301 	irqfd->gsi = args->gsi;  in kvm_irqfd_assign()
307 	f = fdget(args->fd);  in kvm_irqfd_assign()
321 	if (args->flags & KVM_IRQFD_FLAG_RESAMPLE) {  in kvm_irqfd_assign()
324 		resamplefd = eventfd_ctx_fdget(args->resamplefd);  in kvm_irqfd_assign()
522 kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd_deassign()  argument
527 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_irqfd_deassign()
534 		if (irqfd->eventfd == eventfd && irqfd->gsi == args->gsi) {  in kvm_irqfd_deassign()
562 kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args)  in kvm_irqfd()  argument
564 	if (args->flags & ~(KVM_IRQFD_FLAG_DEASSIGN | KVM_IRQFD_FLAG_RESAMPLE))  in kvm_irqfd()
567 	if (args->flags & KVM_IRQFD_FLAG_DEASSIGN)  in kvm_irqfd()
568 		return kvm_irqfd_deassign(kvm, args);  in kvm_irqfd()
570 	return kvm_irqfd_assign(kvm, args);  in kvm_irqfd()
782 				struct kvm_ioeventfd *args)  in kvm_assign_ioeventfd_idx()  argument
789 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_assign_ioeventfd_idx()
800 	p->addr    = args->addr;  in kvm_assign_ioeventfd_idx()
802 	p->length  = args->len;  in kvm_assign_ioeventfd_idx()
806 	if (args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH)  in kvm_assign_ioeventfd_idx()
807 		p->datamatch = args->datamatch;  in kvm_assign_ioeventfd_idx()
845 			   struct kvm_ioeventfd *args)  in kvm_deassign_ioeventfd_idx()  argument
851 	eventfd = eventfd_ctx_fdget(args->fd);  in kvm_deassign_ioeventfd_idx()
858 		bool wildcard = !(args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH);  in kvm_deassign_ioeventfd_idx()
862 		    p->addr != args->addr  ||  in kvm_deassign_ioeventfd_idx()
863 		    p->length != args->len ||  in kvm_deassign_ioeventfd_idx()
867 		if (!p->wildcard && p->datamatch != args->datamatch)  in kvm_deassign_ioeventfd_idx()
884 static int kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_deassign_ioeventfd()  argument
886 	enum kvm_bus bus_idx = ioeventfd_bus_from_flags(args->flags);  in kvm_deassign_ioeventfd()
887 	int ret = kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_deassign_ioeventfd()
889 	if (!args->len && bus_idx == KVM_MMIO_BUS)  in kvm_deassign_ioeventfd()
890 		kvm_deassign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);  in kvm_deassign_ioeventfd()
896 kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_assign_ioeventfd()  argument
901 	bus_idx = ioeventfd_bus_from_flags(args->flags);  in kvm_assign_ioeventfd()
903 	switch (args->len) {  in kvm_assign_ioeventfd()
915 	if (args->addr + args->len < args->addr)  in kvm_assign_ioeventfd()
919 	if (args->flags & ~KVM_IOEVENTFD_VALID_FLAG_MASK)  in kvm_assign_ioeventfd()
923 	if (!args->len && (args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH))  in kvm_assign_ioeventfd()
926 	ret = kvm_assign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_assign_ioeventfd()
933 	if (!args->len && bus_idx == KVM_MMIO_BUS) {  in kvm_assign_ioeventfd()
934 		ret = kvm_assign_ioeventfd_idx(kvm, KVM_FAST_MMIO_BUS, args);  in kvm_assign_ioeventfd()
942 	kvm_deassign_ioeventfd_idx(kvm, bus_idx, args);  in kvm_assign_ioeventfd()
948 kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)  in kvm_ioeventfd()  argument
950 	if (args->flags & KVM_IOEVENTFD_FLAG_DEASSIGN)  in kvm_ioeventfd()
951 		return kvm_deassign_ioeventfd(kvm, args);  in kvm_ioeventfd()
953 	return kvm_assign_ioeventfd(kvm, args);  in kvm_ioeventfd()