public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20221101145426.251680-21-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Vitaly Kuznetsov 2022-11-01 15:53:58 +01:00 • committed by Paolo Bonzini
parent 38edb45231
commit e45aa2444d
2 changed files with 17 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
arch/x86/kvm/svm/hyperv.h
View file

@ -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__ */

2
arch/x86/kvm/svm/nested.c
View file

@ -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;
}