xref: /openbmc/linux/virt/kvm/coalesced_mmio.h (revision a09d2831)
1 /*
2  * KVM coalesced MMIO
3  *
4  * Copyright (c) 2008 Bull S.A.S.
5  *
6  *  Author: Laurent Vivier <Laurent.Vivier@bull.net>
7  *
8  */
9 
10 #define KVM_COALESCED_MMIO_ZONE_MAX 100
11 
12 struct kvm_coalesced_mmio_dev {
13 	struct kvm_io_device dev;
14 	struct kvm *kvm;
15 	spinlock_t lock;
16 	int nb_zones;
17 	struct kvm_coalesced_mmio_zone zone[KVM_COALESCED_MMIO_ZONE_MAX];
18 };
19 
20 int kvm_coalesced_mmio_init(struct kvm *kvm);
21 int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
22                                        struct kvm_coalesced_mmio_zone *zone);
23 int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
24                                          struct kvm_coalesced_mmio_zone *zone);
25