diff options
| -rw-r--r-- | include/linux/cpuhotplug.h | 1 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic.c | 39 |
2 files changed, 9 insertions, 31 deletions
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 24f56e290003..ff37caccafce 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -42,6 +42,7 @@ enum cpuhp_state { CPUHP_AP_QCOM_TIMER_STARTING, CPUHP_AP_MIPS_GIC_TIMER_STARTING, CPUHP_AP_KVM_STARTING, + CPUHP_AP_KVM_ARM_VGIC_STARTING, CPUHP_AP_LEDTRIG_STARTING, CPUHP_AP_NOTIFY_STARTING, CPUHP_AP_ONLINE, diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index c3bfbb981e73..67cb5e948be2 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -2326,32 +2326,18 @@ int vgic_has_attr_regs(const struct vgic_io_range *ranges, phys_addr_t offset) return -ENXIO; } -static void vgic_init_maintenance_interrupt(void *info) +static int vgic_starting_cpu(unsigned int cpu) { enable_percpu_irq(vgic->maint_irq, 0); + return 0; } -static int vgic_cpu_notify(struct notifier_block *self, - unsigned long action, void *cpu) +static int vgic_dying_cpu(unsigned int cpu) { - switch (action) { - case CPU_STARTING: - case CPU_STARTING_FROZEN: - vgic_init_maintenance_interrupt(NULL); - break; - case CPU_DYING: - case CPU_DYING_FROZEN: - disable_percpu_irq(vgic->maint_irq); - break; - } - - return NOTIFY_OK; + disable_percpu_irq(vgic->maint_irq); + return 0; } -static struct notifier_block vgic_cpu_nb = { - .notifier_call = vgic_cpu_notify, -}; - static int kvm_vgic_probe(void) { const struct gic_kvm_info *gic_kvm_info; @@ -2392,19 +2378,10 @@ int kvm_vgic_hyp_init(void) return ret; } - ret = __register_cpu_notifier(&vgic_cpu_nb); - if (ret) { - kvm_err("Cannot register vgic CPU notifier\n"); - goto out_free_irq; - } - - on_each_cpu(vgic_init_maintenance_interrupt, NULL, 1); - + cpuhp_setup_state(CPUHP_AP_KVM_ARM_VGIC_STARTING, + "AP_KVM_ARM_VGIC_STARTING", vgic_starting_cpu, + vgic_dying_cpu); return 0; - -out_free_irq: - free_percpu_irq(vgic->maint_irq, kvm_get_running_vcpus()); - return ret; } int kvm_irq_map_gsi(struct kvm *kvm, |