| 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 | #endif |