diff options
| -rw-r--r-- | include/kvm/arm_vgic.h | 3 | ||||
| -rw-r--r-- | virt/kvm/arm/arch_timer.c | 23 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic.c | 28 |
3 files changed, 28 insertions, 26 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index c7bb184c79eb..9ad7625c0e79 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -158,7 +158,6 @@ struct vgic_io_device { struct irq_phys_map { u32 virt_irq; u32 phys_irq; - u32 irq; }; struct irq_phys_map_entry { @@ -346,7 +345,7 @@ int kvm_vgic_inject_mapped_irq(struct kvm *kvm, int cpuid, void vgic_v3_dispatch_sgi(struct kvm_vcpu *vcpu, u64 reg); int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu); struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, - int virt_irq, int irq); + int virt_irq, int phys_irq); int kvm_vgic_unmap_phys_irq(struct kvm_vcpu *vcpu, unsigned int virt_irq); bool kvm_vgic_map_is_active(struct kvm_vcpu *vcpu, unsigned int virt_irq); diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c index 962b442d0d77..e45895a0153d 100644 --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -20,6 +20,7 @@ #include <linux/kvm.h> #include <linux/kvm_host.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <clocksource/arm_arch_timer.h> #include <asm/arch_timer.h> @@ -300,7 +301,7 @@ void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu) if (timer->active_cleared_last && !phys_active) return; - ret = irq_set_irqchip_state(timer->map->irq, + ret = irq_set_irqchip_state(host_vtimer_irq, IRQCHIP_STATE_ACTIVE, phys_active); WARN_ON(ret); @@ -333,6 +334,9 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu, { struct arch_timer_cpu *timer = &vcpu->arch.timer_cpu; struct irq_phys_map *map; + struct irq_desc *desc; + struct irq_data *data; + int phys_irq; /* * The vcpu timer irq number cannot be determined in @@ -352,10 +356,25 @@ int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu, kvm_timer_update_state(vcpu); /* + * Find the physical IRQ number corresponding to the host_vtimer_irq + */ + desc = irq_to_desc(host_vtimer_irq); + if (!desc) { + kvm_err("%s: no interrupt descriptor\n", __func__); + return -EINVAL; + } + + data = irq_desc_get_irq_data(desc); + while (data->parent_data) + data = data->parent_data; + + phys_irq = data->hwirq; + + /* * Tell the VGIC that the virtual interrupt is tied to a * physical interrupt. We do that once per VCPU. */ - map = kvm_vgic_map_phys_irq(vcpu, irq->irq, host_vtimer_irq); + map = kvm_vgic_map_phys_irq(vcpu, irq->irq, phys_irq); if (WARN_ON(IS_ERR(map))) return PTR_ERR(map); diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 06abd59dcbe3..a7e496abfca2 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1711,38 +1711,24 @@ static struct list_head *vgic_get_irq_phys_map_list(struct kvm_vcpu *vcpu, /** * kvm_vgic_map_phys_irq - map a virtual IRQ to a physical IRQ * @vcpu: The VCPU pointer - * @virt_irq: The virtual irq number - * @irq: The Linux IRQ number + * @virt_irq: The virtual IRQ number for the guest + * @phys_irq: The hardware IRQ number of the host * * Establish a mapping between a guest visible irq (@virt_irq) and a - * Linux irq (@irq). On injection, @virt_irq will be associated with - * the physical interrupt represented by @irq. This mapping can be + * hardware irq (@phys_irq). On injection, @virt_irq will be associated with + * the physical interrupt represented by @phys_irq. This mapping can be * established multiple times as long as the parameters are the same. * * Returns a valid pointer on success, and an error pointer otherwise */ struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, - int virt_irq, int irq) + int virt_irq, int phys_irq) { struct vgic_dist *dist = &vcpu->kvm->arch.vgic; struct list_head *root = vgic_get_irq_phys_map_list(vcpu, virt_irq); struct irq_phys_map *map; struct irq_phys_map_entry *entry; - struct irq_desc *desc; - struct irq_data *data; - int phys_irq; - desc = irq_to_desc(irq); - if (!desc) { - kvm_err("%s: no interrupt descriptor\n", __func__); - return ERR_PTR(-EINVAL); - } - - data = irq_desc_get_irq_data(desc); - while (data->parent_data) - data = data->parent_data; - - phys_irq = data->hwirq; /* Create a new mapping */ entry = kzalloc(sizeof(*entry), GFP_KERNEL); @@ -1755,8 +1741,7 @@ struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, map = vgic_irq_map_search(vcpu, virt_irq); if (map) { /* Make sure this mapping matches */ - if (map->phys_irq != phys_irq || - map->irq != irq) + if (map->phys_irq != phys_irq) map = ERR_PTR(-EINVAL); /* Found an existing, valid mapping */ @@ -1766,7 +1751,6 @@ struct irq_phys_map *kvm_vgic_map_phys_irq(struct kvm_vcpu *vcpu, map = &entry->map; map->virt_irq = virt_irq; map->phys_irq = phys_irq; - map->irq = irq; list_add_tail_rcu(&entry->entry, root); |