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, bool dont_zero_synic_pages); 60 61 void kvm_hv_vcpu_init(struct kvm_vcpu *vcpu); 62 void kvm_hv_vcpu_postcreate(struct kvm_vcpu *vcpu); 63 void kvm_hv_vcpu_uninit(struct kvm_vcpu *vcpu); 64 65 static inline struct kvm_vcpu_hv_stimer *vcpu_to_stimer(struct kvm_vcpu *vcpu, 66 int timer_index) 67 { 68 return &vcpu_to_hv_vcpu(vcpu)->stimer[timer_index]; 69 } 70 71 static inline struct kvm_vcpu *stimer_to_vcpu(struct kvm_vcpu_hv_stimer *stimer) 72 { 73 struct kvm_vcpu_hv *hv_vcpu; 74 75 hv_vcpu = container_of(stimer - stimer->index, struct kvm_vcpu_hv, 76 stimer[0]); 77 return hv_vcpu_to_vcpu(hv_vcpu); 78 } 79 80 static inline bool kvm_hv_has_stimer_pending(struct kvm_vcpu *vcpu) 81 { 82 return !bitmap_empty(vcpu->arch.hyperv.stimer_pending_bitmap, 83 HV_SYNIC_STIMER_COUNT); 84 } 85 86 void kvm_hv_process_stimers(struct kvm_vcpu *vcpu); 87 88 void kvm_hv_setup_tsc_page(struct kvm *kvm, 89 struct pvclock_vcpu_time_info *hv_clock); 90 91 #endif 92