Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / arch / x86 / kvm / hyperv.h
... / ...
CommitLineData
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
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