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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-11-01 15:54:03 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-11-18 12:59:16 -0500 |
| commit | 046f5756c49106471bc98bd32b87a62d0717ddda (patch) | |
| tree | 5309fba97f877260a31088645c42336462c07a51 /arch/x86/kvm/hyperv.c | |
| parent | d4baf1a9a572910d7b4cd63d23bf4be89b7648bd (diff) | |
| download | lwn-046f5756c49106471bc98bd32b87a62d0717ddda.tar.gz lwn-046f5756c49106471bc98bd32b87a62d0717ddda.zip | |
KVM: nVMX: hyper-v: Cache VP assist page in 'struct kvm_vcpu_hv'
In preparation to enabling L2 TLB flush, cache VP assist page in
'struct kvm_vcpu_hv'. While on it, rename nested_enlightened_vmentry()
to nested_get_evmptr() and make it return eVMCS GPA directly.
No functional change intended.
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: <20221101145426.251680-26-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/hyperv.c')
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 3715a6f026a2..ce245e37d08f 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -900,13 +900,15 @@ bool kvm_hv_assist_page_enabled(struct kvm_vcpu *vcpu) } EXPORT_SYMBOL_GPL(kvm_hv_assist_page_enabled); -bool kvm_hv_get_assist_page(struct kvm_vcpu *vcpu, - struct hv_vp_assist_page *assist_page) +bool kvm_hv_get_assist_page(struct kvm_vcpu *vcpu) { - if (!kvm_hv_assist_page_enabled(vcpu)) + struct kvm_vcpu_hv *hv_vcpu = to_hv_vcpu(vcpu); + + if (!hv_vcpu || !kvm_hv_assist_page_enabled(vcpu)) return false; + return !kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.pv_eoi.data, - assist_page, sizeof(*assist_page)); + &hv_vcpu->vp_assist_page, sizeof(struct hv_vp_assist_page)); } EXPORT_SYMBOL_GPL(kvm_hv_get_assist_page); |