Contributors: 8
Author Tokens Token Proportion Commits Commit Proportion
Vitaly Kuznetsov 161 68.22% 6 37.50%
Liran Alon 24 10.17% 1 6.25%
Sheng Yang 15 6.36% 2 12.50%
Maxim Levitsky 14 5.93% 2 12.50%
Joerg Roedel 9 3.81% 1 6.25%
Vineeth Pillai 6 2.54% 1 6.25%
Paolo Bonzini 4 1.69% 1 6.25%
Sean Christopherson 3 1.27% 2 12.50%
Total 236 16 


/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Common Hyper-V on KVM and KVM on Hyper-V definitions (SVM).
 */

#ifndef __ARCH_X86_KVM_SVM_HYPERV_H__
#define __ARCH_X86_KVM_SVM_HYPERV_H__

#include <asm/mshyperv.h>

#include "../hyperv.h"
#include "svm.h"

#ifdef CONFIG_KVM_HYPERV
static inline void nested_svm_hv_update_vm_vp_ids(struct kvm_vcpu *vcpu)
{
	struct vcpu_svm *svm = to_svm(vcpu);
	struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
	struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);

	if (!hv_vcpu)
		return;

	hv_vcpu->nested.pa_page_gpa = hve->partition_assist_page;
	hv_vcpu->nested.vm_id = hve->hv_vm_id;
	hv_vcpu->nested.vp_id = hve->hv_vp_id;
}

static inline bool nested_svm_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu)
{
	struct vcpu_svm *svm = to_svm(vcpu);
	struct hv_vmcb_enlightenments *hve = &svm->nested.ctl.hv_enlightenments;
	struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu);

	if (!hv_vcpu)
		return false;

	if (!hve->hv_enlightenments_control.nested_flush_hypercall)
		return false;

	return hv_vcpu->vp_assist_page.nested_control.features.directhypercall;
}

void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu);
#else /* CONFIG_KVM_HYPERV */
static inline void nested_svm_hv_update_vm_vp_ids(struct kvm_vcpu *vcpu) {}
static inline bool nested_svm_l2_tlb_flush_enabled(struct kvm_vcpu *vcpu)
{
	return false;
}
static inline void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu) {}
#endif /* CONFIG_KVM_HYPERV */

#endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */