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 |