| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
|---|---|
| 2 | /* |
| 3 | * Common Hyper-V on KVM and KVM on Hyper-V definitions (SVM). |
| 4 | */ |
| 5 | |
| 6 | #ifndef __ARCH_X86_KVM_SVM_HYPERV_H__ |
| 7 | #define __ARCH_X86_KVM_SVM_HYPERV_H__ |
| 8 | |
| 9 | #include <asm/mshyperv.h> |
| 10 | |
| 11 | #include "../hyperv.h" |
| 12 | #include "svm.h" |
| 13 | |
| 14 | #ifdef CONFIG_KVM_HYPERV |
| 15 | static inline void nested_svm_hv_update_vm_vp_ids(struct kvm_vcpu *vcpu) |
| 16 | { |
| 17 | struct vcpu_svm *svm = to_svm(vcpu); |
| 18 | struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments; |
| 19 | struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); |
| 20 | |
| 21 | if (!hv_vcpu) |
| 22 | return; |
| 23 | |
| 24 | hv_vcpu->nested.pa_page_gpa = hve->partition_assist_page; |
| 25 | hv_vcpu->nested.vm_id = hve->hv_vm_id; |
| 26 | hv_vcpu->nested.vp_id = hve->hv_vp_id; |
| 27 | } |
| 28 | |
| 29 | static inline bool nested_svm_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu) |
| 30 | { |
| 31 | struct vcpu_svm *svm = to_svm(vcpu); |
| 32 | struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments; |
| 33 | struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); |
| 34 | |
| 35 | if (!hv_vcpu) |
| 36 | return false; |
| 37 | |
| 38 | if (!hve->hv_enlightenments_control.nested_flush_hypercall) |
| 39 | return false; |
| 40 | |
| 41 | return hv_vcpu->vp_assist_page.nested_control.features.directhypercall; |
| 42 | } |
| 43 | |
| 44 | void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu); |
| 45 | #else /* CONFIG_KVM_HYPERV */ |
| 46 | static inline void nested_svm_hv_update_vm_vp_ids(struct kvm_vcpu *vcpu) {} |
| 47 | static inline bool nested_svm_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu) |
| 48 | { |
| 49 | return false; |
| 50 | } |
| 51 | static inline void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu) {} |
| 52 | #endif /* CONFIG_KVM_HYPERV */ |
| 53 | |
| 54 | #endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */ |
| 55 |