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Subject[PATCH 54/61] KVM: x86: Check for Intel PT MSR virtualization using KVM cpu caps
Date
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.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
arch/x86/kvm/x86.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e4353c03269c..9d38dcdbb613 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5251,23 +5251,23 @@ 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;
--
2.24.1
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