diff mbox series

[v2,47/54] KVM: x86/pmu/svm: Set passthrough capability for vcpus

Message ID 20240506053020.3911940-48-mizhang@google.com (mailing list archive)
State New
Headers show
Series Mediated Passthrough vPMU 2.0 for x86 | expand

Commit Message

Mingwei Zhang May 6, 2024, 5:30 a.m. UTC 
From: Sandipan Das <sandipan.das@amd.com>

Pass on the passthrough PMU setting from kvm->arch into kvm_pmu for each
vcpu. As long as the host supports PerfMonV2, the guest PMU version does
not matter.

Signed-off-by: Sandipan Das <sandipan.das@amd.com>
---
 arch/x86/kvm/svm/pmu.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/arch/x86/kvm/svm/pmu.c b/arch/x86/kvm/svm/pmu.c
index 447657513729..385478103f65 100644
--- a/arch/x86/kvm/svm/pmu.c
+++ b/arch/x86/kvm/svm/pmu.c
@@ -211,6 +211,7 @@  static void amd_pmu_refresh(struct kvm_vcpu *vcpu)
 	pmu->counter_bitmask[KVM_PMC_FIXED] = 0;
 	pmu->nr_arch_fixed_counters = 0;
 	bitmap_set(pmu->all_valid_pmc_idx, 0, pmu->nr_arch_gp_counters);
+	pmu->passthrough = vcpu->kvm->arch.enable_passthrough_pmu;
 
 	if (guest_cpuid_has(vcpu, X86_FEATURE_PERFCTR_CORE)) {
 		for (i = 0; i < pmu->nr_arch_gp_counters; i++) {