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authorLinus Torvalds <torvalds@linux-foundation.org>2019-08-09 15:46:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-08-09 15:46:29 -0700
commit7f20fd23377ac3356657ce35fcaf19ee2fea8345 (patch)
tree3b275e1a0fc8df2567a02d9e40ca219ac3f09c6f /virt/kvm/arm/pmu.c
parent15abf14202a2fe7e5c5fc0e815587f45de4fd500 (diff)
parenta738b5e75b4c13be3485c82eb62c30047aa9f164 (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini: "Bugfixes (arm and x86) and cleanups" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: selftests: kvm: Adding config fragments KVM: selftests: Update gitignore file for latest changes kvm: remove unnecessary PageReserved check KVM: arm/arm64: vgic: Reevaluate level sensitive interrupts on enable KVM: arm: Don't write junk to CP15 registers on reset KVM: arm64: Don't write junk to sysregs on reset KVM: arm/arm64: Sync ICH_VMCR_EL2 back when about to block x86: kvm: remove useless calls to kvm_para_available KVM: no need to check return value of debugfs_create functions KVM: remove kvm_arch_has_vcpu_debugfs() KVM: Fix leak vCPU's VMCS value into other pCPU KVM: Check preempted_in_kernel for involuntary preemption KVM: LAPIC: Don't need to wakeup vCPU twice afer timer fire arm64: KVM: hyp: debug-sr: Mark expected switch fall-through KVM: arm64: Update kvm_arm_exception_class and esr_class_str for new EC KVM: arm: vgic-v3: Mark expected switch fall-through arm64: KVM: regmap: Fix unexpected switch fall-through KVM: arm/arm64: Introduce kvm_pmu_vcpu_init() to setup PMU counter index
Diffstat (limited to 'virt/kvm/arm/pmu.c')
-rw-r--r--virt/kvm/arm/pmu.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/virt/kvm/arm/pmu.c b/virt/kvm/arm/pmu.c
index 3dd8238ed246..362a01886bab 100644
--- a/virt/kvm/arm/pmu.c
+++ b/virt/kvm/arm/pmu.c
@@ -215,6 +215,20 @@ static void kvm_pmu_stop_counter(struct kvm_vcpu *vcpu, struct kvm_pmc *pmc)
}
/**
+ * kvm_pmu_vcpu_init - assign pmu counter idx for cpu
+ * @vcpu: The vcpu pointer
+ *
+ */
+void kvm_pmu_vcpu_init(struct kvm_vcpu *vcpu)
+{
+ int i;
+ struct kvm_pmu *pmu = &vcpu->arch.pmu;
+
+ for (i = 0; i < ARMV8_PMU_MAX_COUNTERS; i++)
+ pmu->pmc[i].idx = i;
+}
+
+/**
* kvm_pmu_vcpu_reset - reset pmu state for cpu
* @vcpu: The vcpu pointer
*
@@ -224,10 +238,8 @@ void kvm_pmu_vcpu_reset(struct kvm_vcpu *vcpu)
int i;
struct kvm_pmu *pmu = &vcpu->arch.pmu;
- for (i = 0; i < ARMV8_PMU_MAX_COUNTERS; i++) {
+ for (i = 0; i < ARMV8_PMU_MAX_COUNTERS; i++)
kvm_pmu_stop_counter(vcpu, &pmu->pmc[i]);
- pmu->pmc[i].idx = i;
- }
bitmap_zero(vcpu->arch.pmu.chained, ARMV8_PMU_MAX_COUNTER_PAIRS);
}