| Subject | Re: [PATCH v3 29/34] KVM: selftests: nSVM: Allocate Hyper-V partition assist and VP assist pages | From | Maxim Levitsky <> | Date | Wed, 11 May 2022 15:17:47 +0300 |
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On Thu, 2022-04-14 at 15:20 +0200, Vitaly Kuznetsov wrote: > In preparation to testing Hyper-V L2 TLB flush hypercalls, allocate VP > assist and Partition assist pages and link them to 'struct svm_test_data'. > > Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> > --- > tools/testing/selftests/kvm/include/x86_64/svm_util.h | 10 ++++++++++ > tools/testing/selftests/kvm/lib/x86_64/svm.c | 10 ++++++++++ > 2 files changed, 20 insertions(+) > > diff --git a/tools/testing/selftests/kvm/include/x86_64/svm_util.h b/tools/testing/selftests/kvm/include/x86_64/svm_util.h > index a25aabd8f5e7..640859b58fd6 100644 > --- a/tools/testing/selftests/kvm/include/x86_64/svm_util.h > +++ b/tools/testing/selftests/kvm/include/x86_64/svm_util.h > @@ -34,6 +34,16 @@ struct svm_test_data { > void *msr; /* gva */ > void *msr_hva; > uint64_t msr_gpa; > + > + /* Hyper-V VP assist page */ > + void *vp_assist; /* gva */ > + void *vp_assist_hva; > + uint64_t vp_assist_gpa; > + > + /* Hyper-V Partition assist page */ > + void *partition_assist; /* gva */ > + void *partition_assist_hva; > + uint64_t partition_assist_gpa; > }; > > struct svm_test_data *vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva); > diff --git a/tools/testing/selftests/kvm/lib/x86_64/svm.c b/tools/testing/selftests/kvm/lib/x86_64/svm.c > index 736ee4a23df6..c284e8f87f5c 100644 > --- a/tools/testing/selftests/kvm/lib/x86_64/svm.c > +++ b/tools/testing/selftests/kvm/lib/x86_64/svm.c > @@ -48,6 +48,16 @@ vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva) > svm->msr_gpa = addr_gva2gpa(vm, (uintptr_t)svm->msr); > memset(svm->msr_hva, 0, getpagesize()); > > + svm->vp_assist = (void *)vm_vaddr_alloc_page(vm); > + svm->vp_assist_hva = addr_gva2hva(vm, (uintptr_t)svm->vp_assist); > + svm->vp_assist_gpa = addr_gva2gpa(vm, (uintptr_t)svm->vp_assist); > + memset(svm->vp_assist_hva, 0, getpagesize()); > + > + svm->partition_assist = (void *)vm_vaddr_alloc_page(vm); > + svm->partition_assist_hva = addr_gva2hva(vm, (uintptr_t)svm->partition_assist); > + svm->partition_assist_gpa = addr_gva2gpa(vm, (uintptr_t)svm->partition_assist); > + memset(svm->partition_assist_hva, 0, getpagesize()); > + > *p_svm_gva = svm_gva; > return svm; > }
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Best regards, Maxim Levitsky
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