Merge tag 'pci-v4.9-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
[sfrench/cifs-2.6.git] / 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
27 static inline struct kvm_vcpu_hv *vcpu_to_hv_vcpu(struct kvm_vcpu *vcpu)
28 {
29         return &vcpu->arch.hyperv;
30 }
31
32 static 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
40 static inline struct kvm_vcpu_hv_synic *vcpu_to_synic(struct kvm_vcpu *vcpu)
41 {
42         return &vcpu->arch.hyperv.synic;
43 }
44
45 static 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
50 int kvm_hv_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host);
51 int kvm_hv_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
52
53 bool kvm_hv_hypercall_enabled(struct kvm *kvm);
54 int kvm_hv_hypercall(struct kvm_vcpu *vcpu);
55
56 void kvm_hv_irq_routing_update(struct kvm *kvm);
57 int kvm_hv_synic_set_irq(struct kvm *kvm, u32 vcpu_id, u32 sint);
58 void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector);
59 int kvm_hv_activate_synic(struct kvm_vcpu *vcpu);
60
61 void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu);
62 void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu);
63
64 static 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
70 static 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
79 static 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
85 void kvm_hv_process_stimers(struct kvm_vcpu *vcpu);
86
87 void kvm_hv_setup_tsc_page(struct kvm *kvm,
88                            struct pvclock_vcpu_time_info *hv_clock);
89
90 #endif