| Message ID | 1500471597-2517-4-git-send-email-drjones@redhat.com |
|---|---|
| State | New |
| Headers | show |
On Wed, Jul 19, 2017 at 09:39:56AM -0400, Andrew Jones wrote: > Move the in-kernel-irqchip test to only guard the set-irq > stage, not the init stage of the PMU. Also add the PMU to > the KVM device irq line synchronization to enable its use. > > Signed-off-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Christoffer Dall <cdall@linaro.org> > --- > hw/arm/virt.c | 3 ++- > target/arm/kvm.c | 6 +++++- > target/arm/kvm64.c | 3 +-- > 3 files changed, 8 insertions(+), 4 deletions(-) > > diff --git a/hw/arm/virt.c b/hw/arm/virt.c > index 7157a028adce..a215330444da 100644 > --- a/hw/arm/virt.c > +++ b/hw/arm/virt.c > @@ -496,7 +496,8 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) > return; > } > if (kvm_enabled()) { > - if (!kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ))) { > + if (kvm_irqchip_in_kernel() && > + !kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ))) { > return; > } > if (!kvm_arm_pmu_init(cpu)) { > diff --git a/target/arm/kvm.c b/target/arm/kvm.c > index 7c17f0d629d7..211a7bf7befd 100644 > --- a/target/arm/kvm.c > +++ b/target/arm/kvm.c > @@ -567,7 +567,11 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) > switched_level &= ~KVM_ARM_DEV_EL1_PTIMER; > } > > - /* XXX PMU IRQ is missing */ > + if (switched_level & KVM_ARM_DEV_PMU) { > + qemu_set_irq(cpu->pmu_interrupt, > + !!(run->s.regs.device_irq_level & KVM_ARM_DEV_PMU)); > + switched_level &= ~KVM_ARM_DEV_PMU; > + } > > if (switched_level) { > qemu_log_mask(LOG_UNIMP, "%s: unhandled in-kernel device IRQ %x\n", > diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c > index e26638a6fac1..ec7d85314acc 100644 > --- a/target/arm/kvm64.c > +++ b/target/arm/kvm64.c > @@ -506,8 +506,7 @@ int kvm_arch_init_vcpu(CPUState *cs) > if (!arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { > cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_EL1_32BIT; > } > - if (!kvm_irqchip_in_kernel() || > - !kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) { > + if (!kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) { > cpu->has_pmu = false; > } > if (cpu->has_pmu) { > -- > 1.8.3.1 >
diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 7157a028adce..a215330444da 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -496,7 +496,8 @@ static void fdt_add_pmu_nodes(const VirtMachineState *vms) return; } if (kvm_enabled()) { - if (!kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ))) { + if (kvm_irqchip_in_kernel() && + !kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ))) { return; } if (!kvm_arm_pmu_init(cpu)) { diff --git a/target/arm/kvm.c b/target/arm/kvm.c index 7c17f0d629d7..211a7bf7befd 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -567,7 +567,11 @@ MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) switched_level &= ~KVM_ARM_DEV_EL1_PTIMER; } - /* XXX PMU IRQ is missing */ + if (switched_level & KVM_ARM_DEV_PMU) { + qemu_set_irq(cpu->pmu_interrupt, + !!(run->s.regs.device_irq_level & KVM_ARM_DEV_PMU)); + switched_level &= ~KVM_ARM_DEV_PMU; + } if (switched_level) { qemu_log_mask(LOG_UNIMP, "%s: unhandled in-kernel device IRQ %x\n", diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index e26638a6fac1..ec7d85314acc 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -506,8 +506,7 @@ int kvm_arch_init_vcpu(CPUState *cs) if (!arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_EL1_32BIT; } - if (!kvm_irqchip_in_kernel() || - !kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) { + if (!kvm_check_extension(cs->kvm_state, KVM_CAP_ARM_PMU_V3)) { cpu->has_pmu = false; } if (cpu->has_pmu) {
Move the in-kernel-irqchip test to only guard the set-irq stage, not the init stage of the PMU. Also add the PMU to the KVM device irq line synchronization to enable its use. Signed-off-by: Andrew Jones <drjones@redhat.com> --- hw/arm/virt.c | 3 ++- target/arm/kvm.c | 6 +++++- target/arm/kvm64.c | 3 +-- 3 files changed, 8 insertions(+), 4 deletions(-)