LXR linux/arch/x86/kvm/hyperv.h

   1/*
   2 * KVM Microsoft Hyper-V emulation
   3 *
   4 * derived from arch/x86/kvm/x86.c
   5 *
   6 * Copyright (C) 2006 Qumranet, Inc.
   7 * Copyright (C) 2008 Qumranet, Inc.
   8 * Copyright IBM Corporation, 2008
   9 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
  10 * Copyright (C) 2015 Andrey Smetanin <asmetanin@virtuozzo.com>
  11 *
  12 * Authors:
  13 *   Avi Kivity   <avi@qumranet.com>
  14 *   Yaniv Kamay  <yaniv@qumranet.com>
  15 *   Amit Shah    <amit.shah@qumranet.com>
  16 *   Ben-Ami Yassour <benami@il.ibm.com>
  17 *   Andrey Smetanin <asmetanin@virtuozzo.com>
  18 *
  19 * This work is licensed under the terms of the GNU GPL, version 2.  See
  20 * the COPYING file in the top-level directory.
  21 *
  22 */
  23
  24#ifndef __ARCH_X86_KVM_HYPERV_H__
  25#define __ARCH_X86_KVM_HYPERV_H__
  26
  27static inline struct kvm_vcpu_hv *vcpu_to_hv_vcpu(struct kvm_vcpu *vcpu)
  28{
  29        return &vcpu->arch.hyperv;
  30}
  31
  32static inline struct kvm_vcpu *hv_vcpu_to_vcpu(struct kvm_vcpu_hv *hv_vcpu)
  33{
  34        struct kvm_vcpu_arch *arch;
  35
  36        arch = container_of(hv_vcpu, struct kvm_vcpu_arch, hyperv);
  37        return container_of(arch, struct kvm_vcpu, arch);
  38}
  39
  40static inline struct kvm_vcpu_hv_synic *vcpu_to_synic(struct kvm_vcpu *vcpu)
  41{
  42        return &vcpu->arch.hyperv.synic;
  43}
  44
  45static inline struct kvm_vcpu *synic_to_vcpu(struct kvm_vcpu_hv_synic *synic)
  46{
  47        return hv_vcpu_to_vcpu(container_of(synic, struct kvm_vcpu_hv, synic));
  48}
  49
  50int kvm_hv_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host);
  51int kvm_hv_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
  52
  53bool kvm_hv_hypercall_enabled(struct kvm *kvm);
  54int kvm_hv_hypercall(struct kvm_vcpu *vcpu);
  55
  56void kvm_hv_irq_routing_update(struct kvm *kvm);
  57int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint);
  58void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector);
  59int kvm_hv_activate_synic(struct kvm_vcpu *vcpu);
  60
  61void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu);
  62void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu);
  63
  64static inline struct kvm_vcpu_hv_stimer *vcpu_to_stimer(struct kvm_vcpu *vcpu,
  65                                                        int timer_index)
  66{
  67        return &vcpu_to_hv_vcpu(vcpu)->stimer[timer_index];
  68}
  69
  70static inline struct kvm_vcpu *stimer_to_vcpu(struct kvm_vcpu_hv_stimer *stimer)
  71{
  72        struct kvm_vcpu_hv *hv_vcpu;
  73
  74        hv_vcpu = container_of(stimer - stimer->index, struct kvm_vcpu_hv,
  75                               stimer[0]);
  76        return hv_vcpu_to_vcpu(hv_vcpu);
  77}
  78
  79static inline bool kvm_hv_has_stimer_pending(struct kvm_vcpu *vcpu)
  80{
  81        return !bitmap_empty(vcpu->arch.hyperv.stimer_pending_bitmap,
  82                             HV_SYNIC_STIMER_COUNT);
  83}
  84
  85void kvm_hv_process_stimers(struct kvm_vcpu *vcpu);
  86
  87#endif
  88