linux/virt/kvm/coalesced_mmio.h
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   1#ifndef __KVM_COALESCED_MMIO_H__
   2#define __KVM_COALESCED_MMIO_H__
   3
   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
  13#ifdef CONFIG_KVM_MMIO
  14
  15#define KVM_COALESCED_MMIO_ZONE_MAX 100
  16
  17struct kvm_coalesced_mmio_dev {
  18        struct kvm_io_device dev;
  19        struct kvm *kvm;
  20        spinlock_t lock;
  21        int nb_zones;
  22        struct kvm_coalesced_mmio_zone zone[KVM_COALESCED_MMIO_ZONE_MAX];
  23};
  24
  25int kvm_coalesced_mmio_init(struct kvm *kvm);
  26void kvm_coalesced_mmio_free(struct kvm *kvm);
  27int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm,
  28                                       struct kvm_coalesced_mmio_zone *zone);
  29int kvm_vm_ioctl_unregister_coalesced_mmio(struct kvm *kvm,
  30                                         struct kvm_coalesced_mmio_zone *zone);
  31
  32#else
  33
  34static inline int kvm_coalesced_mmio_init(struct kvm *kvm) { return 0; }
  35static inline void kvm_coalesced_mmio_free(struct kvm *kvm) { }
  36
  37#endif
  38
  39#endif
  40