diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2022-02-03 11:46:18 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-02-10 13:50:47 -0500 |
| commit | 0b815117da63ba71e06faffc7b9b43e49b08bfea (patch) | |
| tree | 66f80220544279534a37137379038b372403beca | |
| parent | 70e477d996c88d3915d0a870bada29ecf55e45fc (diff) | |
| download | linux-stable-0b815117da63ba71e06faffc7b9b43e49b08bfea.tar.gz linux-stable-0b815117da63ba71e06faffc7b9b43e49b08bfea.tar.bz2 linux-stable-0b815117da63ba71e06faffc7b9b43e49b08bfea.zip | |
KVM: selftests: nSVM: Set up MSR-Bitmap for SVM guests
Similar to VMX, allocate memory for MSR-Bitmap and fill in 'msrpm_base_pa'
in VMCB. To use it, tests will need to set INTERCEPT_MSR_PROT interception
along with the required bits in the MSR-Bitmap.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220203104620.277031-5-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/svm_util.h | 5 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/svm.c | 6 |
2 files changed, 11 insertions, 0 deletions
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 587fbe408b99..e23c8a3e8a66 100644 --- a/tools/testing/selftests/kvm/include/x86_64/svm_util.h +++ b/tools/testing/selftests/kvm/include/x86_64/svm_util.h @@ -28,6 +28,11 @@ struct svm_test_data { struct vmcb_save_area *save_area; /* gva */ void *save_area_hva; uint64_t save_area_gpa; + + /* MSR-Bitmap */ + void *msr; /* gva */ + void *msr_hva; + uint64_t msr_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 0ebc03ce079c..736ee4a23df6 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/svm.c +++ b/tools/testing/selftests/kvm/lib/x86_64/svm.c @@ -43,6 +43,11 @@ vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva) svm->save_area_hva = addr_gva2hva(vm, (uintptr_t)svm->save_area); svm->save_area_gpa = addr_gva2gpa(vm, (uintptr_t)svm->save_area); + svm->msr = (void *)vm_vaddr_alloc_page(vm); + svm->msr_hva = addr_gva2hva(vm, (uintptr_t)svm->msr); + svm->msr_gpa = addr_gva2gpa(vm, (uintptr_t)svm->msr); + memset(svm->msr_hva, 0, getpagesize()); + *p_svm_gva = svm_gva; return svm; } @@ -106,6 +111,7 @@ void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_r save->dbgctl = rdmsr(MSR_IA32_DEBUGCTLMSR); ctrl->intercept = (1ULL << INTERCEPT_VMRUN) | (1ULL << INTERCEPT_VMMCALL); + ctrl->msrpm_base_pa = svm->msr_gpa; vmcb->save.rip = (u64)guest_rip; vmcb->save.rsp = (u64)guest_rsp; |