diff options
Diffstat (limited to 'arch/x86/kvm/svm/hyperv.h')
| -rw-r--r-- | arch/x86/kvm/svm/hyperv.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/hyperv.h b/arch/x86/kvm/svm/hyperv.h new file mode 100644 index 0000000000..02f4784b5d --- /dev/null +++ b/arch/x86/kvm/svm/hyperv.h @@ -0,0 +1,45 @@ +/* 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" + +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); + +#endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */ |