diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-03 02:56:59 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-03-16 19:58:37 +0300 |
| commit | 7b874c26a62487acaf2e7e179715991c70db25db (patch) | |
| tree | 2e23226e45030fb34d5fc0d68c09f71ee954e396 /arch | |
| parent | a7a200eb4c698b70f60a1b8e4e2c6e1c3fcb982e (diff) | |
| download | linux-7b874c26a62487acaf2e7e179715991c70db25db.tar.xz | |
KVM: x86: Check for Intel PT MSR virtualization using KVM cpu caps
Use kvm_cpu_cap_has() to check for Intel PT when processing the list of
virtualized MSRs to pave the way toward removing ->pt_supported().
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index fd0889f2f37f..f3fac68f0612 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5220,23 +5220,23 @@ static void kvm_init_msr_list(void) break; case MSR_IA32_RTIT_CTL: case MSR_IA32_RTIT_STATUS: - if (!kvm_x86_ops->pt_supported()) + if (!kvm_cpu_cap_has(X86_FEATURE_INTEL_PT)) continue; break; case MSR_IA32_RTIT_CR3_MATCH: - if (!kvm_x86_ops->pt_supported() || + if (!kvm_cpu_cap_has(X86_FEATURE_INTEL_PT) || !intel_pt_validate_hw_cap(PT_CAP_cr3_filtering)) continue; break; case MSR_IA32_RTIT_OUTPUT_BASE: case MSR_IA32_RTIT_OUTPUT_MASK: - if (!kvm_x86_ops->pt_supported() || + if (!kvm_cpu_cap_has(X86_FEATURE_INTEL_PT) || (!intel_pt_validate_hw_cap(PT_CAP_topa_output) && !intel_pt_validate_hw_cap(PT_CAP_single_range_output))) continue; break; case MSR_IA32_RTIT_ADDR0_A ... MSR_IA32_RTIT_ADDR3_B: { - if (!kvm_x86_ops->pt_supported() || + if (!kvm_cpu_cap_has(X86_FEATURE_INTEL_PT) || msrs_to_save_all[i] - MSR_IA32_RTIT_ADDR0_A >= intel_pt_validate_hw_cap(PT_CAP_num_address_ranges) * 2) continue; |