19 static inline struct kvm_coalesced_mmio_dev *to_mmio(struct kvm_io_device *dev)  in to_mmio()  argument
21 	return container_of(dev, struct kvm_coalesced_mmio_dev, dev);  in to_mmio()
24 static int coalesced_mmio_in_range(struct kvm_coalesced_mmio_dev *dev,  in coalesced_mmio_in_range()  argument
35 	if (addr < dev->zone.addr)  in coalesced_mmio_in_range()
37 	if (addr + len > dev->zone.addr + dev->zone.size)  in coalesced_mmio_in_range()
42 static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev, u32 last)  in coalesced_mmio_has_room()  argument
53 	ring = dev->kvm->coalesced_mmio_ring;  in coalesced_mmio_has_room()
67 	struct kvm_coalesced_mmio_dev *dev = to_mmio(this);  in coalesced_mmio_write()  local
68 	struct kvm_coalesced_mmio_ring *ring = dev->kvm->coalesced_mmio_ring;  in coalesced_mmio_write()
71 	if (!coalesced_mmio_in_range(dev, addr, len))  in coalesced_mmio_write()
74 	spin_lock(&dev->kvm->ring_lock);  in coalesced_mmio_write()
77 	if (!coalesced_mmio_has_room(dev, insert) ||  in coalesced_mmio_write()
79 		spin_unlock(&dev->kvm->ring_lock);  in coalesced_mmio_write()
90 	spin_unlock(&dev->kvm->ring_lock);  in coalesced_mmio_write()
96 	struct kvm_coalesced_mmio_dev *dev = to_mmio(this);  in coalesced_mmio_destructor()  local
98 	list_del(&dev->list);  in coalesced_mmio_destructor()
100 	kfree(dev);  in coalesced_mmio_destructor()
143 	struct kvm_coalesced_mmio_dev *dev;  in kvm_vm_ioctl_register_coalesced_mmio()  local
145 	dev = kzalloc(sizeof(struct kvm_coalesced_mmio_dev), GFP_KERNEL);  in kvm_vm_ioctl_register_coalesced_mmio()
146 	if (!dev)  in kvm_vm_ioctl_register_coalesced_mmio()
149 	kvm_iodevice_init(&dev->dev, &coalesced_mmio_ops);  in kvm_vm_ioctl_register_coalesced_mmio()
150 	dev->kvm = kvm;  in kvm_vm_ioctl_register_coalesced_mmio()
151 	dev->zone = *zone;  in kvm_vm_ioctl_register_coalesced_mmio()
155 				      zone->size, &dev->dev);  in kvm_vm_ioctl_register_coalesced_mmio()
158 	list_add_tail(&dev->list, &kvm->coalesced_zones);  in kvm_vm_ioctl_register_coalesced_mmio()
165 	kfree(dev);  in kvm_vm_ioctl_register_coalesced_mmio()
173 	struct kvm_coalesced_mmio_dev *dev, *tmp;  in kvm_vm_ioctl_unregister_coalesced_mmio()  local
177 	list_for_each_entry_safe(dev, tmp, &kvm->coalesced_zones, list)  in kvm_vm_ioctl_unregister_coalesced_mmio()
178 		if (coalesced_mmio_in_range(dev, zone->addr, zone->size)) {  in kvm_vm_ioctl_unregister_coalesced_mmio()
179 			kvm_io_bus_unregister_dev(kvm, KVM_MMIO_BUS, &dev->dev);  in kvm_vm_ioctl_unregister_coalesced_mmio()
180 			kvm_iodevice_destructor(&dev->dev);  in kvm_vm_ioctl_unregister_coalesced_mmio()