[net-next-2.6.git] / virt / kvm / coalesced_mmio.h

#ifndef __KVM_COALESCED_MMIO_H__
#define __KVM_COALESCED_MMIO_H__

/*
 * KVM coalesced MMIO
 *
 * Copyright (c) 2008 Bull S.A.S.
 *
 *  Author: Laurent Vivier <Laurent.Vivier@bull.net>
 *
 */

#ifdef CONFIG_KVM_MMIO

#define KVM_COALESCED_MMIO_ZONE_MAX 100

struct kvm_coalesced_mmio_dev {
	struct kvm_io_device dev;
	struct kvm *kvm;
	spinlock_t lock;
	int nb_zones;
	struct kvm_coalesced_mmio_zone zone[KVM_COALESCED_MMIO_ZONE_MAX];
};

int kvm_coalesced_mmio_init(struct kvm *kvm);
void kvm_coalesced_mmio_free(struct kvm *kvm);
int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
                                       struct kvm_coalesced_mmio_zone *zone);
int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
                                         struct kvm_coalesced_mmio_zone *zone);

#else

static inline int kvm_coalesced_mmio_init(struct kvm *kvm) { return 0; }
static inline void kvm_coalesced_mmio_free(struct kvm *kvm) { }

#endif

#endif
Commit	Line	Data
3f0852e0 AK	1	#ifndef __KVM_COALESCED_MMIO_H__
	2	#define __KVM_COALESCED_MMIO_H__
	3
5f94c174 LV	4	/*
	5	* KVM coalesced MMIO
	6	*
	7	* Copyright (c) 2008 Bull S.A.S.
	8	*
	9	* Author: Laurent Vivier <Laurent.Vivier@bull.net>
	10	*
	11	*/
	12
980da6ce AK	13	#ifdef CONFIG_KVM_MMIO
980da6ce AK	14
5f94c174 LV	15	#define KVM_COALESCED_MMIO_ZONE_MAX 100
	16
	17	struct kvm_coalesced_mmio_dev {
	18	struct kvm_io_device dev;
	19	struct kvm *kvm;
64a2268d	20	spinlock_t lock;
5f94c174 LV	21	int nb_zones;
	22	struct kvm_coalesced_mmio_zone zone[KVM_COALESCED_MMIO_ZONE_MAX];
	23	};
	24
	25	int kvm_coalesced_mmio_init(struct kvm *kvm);
980da6ce	26	void kvm_coalesced_mmio_free(struct kvm *kvm);
5f94c174 LV	27	int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
	28	struct kvm_coalesced_mmio_zone *zone);
	29	int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
	30	struct kvm_coalesced_mmio_zone *zone);
3f0852e0	31
980da6ce AK	32	#else
	33
	34	static inline int kvm_coalesced_mmio_init(struct kvm *kvm) { return 0; }
	35	static inline void kvm_coalesced_mmio_free(struct kvm *kvm) { }
	36
	37	#endif
	38
3f0852e0	39	#endif