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
14static inline void nested_svm_hv_update_vm_vp_ids(struct kvm_vcpu *vcpu)
15{
16	struct vcpu_svm *svm = to_svm(vcpu);
17	struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
18	struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);
19
20	if (!hv_vcpu)
21		return;
22
23	hv_vcpu->nested.pa_page_gpa = hve->partition_assist_page;
24	hv_vcpu->nested.vm_id = hve->hv_vm_id;
25	hv_vcpu->nested.vp_id = hve->hv_vp_id;
26}
27
28static inline bool nested_svm_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu)
29{
30	struct vcpu_svm *svm = to_svm(vcpu);
31	struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
32	struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);
33
34	if (!hv_vcpu)
35		return false;
36
37	if (!hve->hv_enlightenments_control.nested_flush_hypercall)
38		return false;
39
40	return hv_vcpu->vp_assist_page.nested_control.features.directhypercall;
41}
42
43void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu);
44
45#endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */