Commit e45aa244 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Paolo Bonzini
Browse files

KVM: nSVM: Keep track of Hyper-V hv_vm_id/hv_vp_id 



Similar to nSVM, KVM needs to know L2's VM_ID/VP_ID and Partition
assist page address to handle L2 TLB flush requests.

Reviewed-by: default avatarMaxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: default avatarSean Christopherson <seanjc@google.com>
Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221101145426.251680-21-vkuznets@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 38edb452

arch/x86/kvm/svm/hyperv.h

+15 −0
Original line number Diff line number Diff line
@@ -9,5 +9,20 @@ 
#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;

}



#endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */

arch/x86/kvm/svm/nested.c

+2 −0
Original line number Diff line number Diff line
@@ -800,6 +800,8 @@ int enter_svm_guest_mode(struct kvm_vcpu *vcpu, u64 vmcb12_gpa, 
	if (kvm_vcpu_apicv_active(vcpu))

		kvm_make_request(KVM_REQ_APICV_UPDATE, vcpu);



	nested_svm_hv_update_vm_vp_ids(vcpu);



	return 0;

}