diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-01-27 20:12:38 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-03-24 12:03:08 +0300 |
| commit | 44882eed2ebe7f75f8cdae5671ab1d6e0fa40dbc (patch) | |
| tree | e026a4067370e2dac1a5a3a9d9995e2b6f82ba49 /virt/kvm/irq_comm.c | |
| parent | 934d534f8a5a39e20d5682b3a3a45ff351706b59 (diff) | |
| download | linux-44882eed2ebe7f75f8cdae5671ab1d6e0fa40dbc.tar.xz | |
KVM: make irq ack notifications aware of routing table
IRQ ack notifications assume an identity mapping between pin->gsi,
which might not be the case with, for example, HPET.
Translate before acking.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
Diffstat (limited to 'virt/kvm/irq_comm.c')
| -rw-r--r-- | virt/kvm/irq_comm.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c index a797fa5e6420..7aa5086c8622 100644 --- a/virt/kvm/irq_comm.c +++ b/virt/kvm/irq_comm.c @@ -59,10 +59,19 @@ void kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level) e->set(e, kvm, !!(*irq_state)); } -void kvm_notify_acked_irq(struct kvm *kvm, unsigned gsi) +void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin) { + struct kvm_kernel_irq_routing_entry *e; struct kvm_irq_ack_notifier *kian; struct hlist_node *n; + unsigned gsi = pin; + + list_for_each_entry(e, &kvm->irq_routing, link) + if (e->irqchip.irqchip == irqchip && + e->irqchip.pin == pin) { + gsi = e->gsi; + break; + } hlist_for_each_entry(kian, n, &kvm->arch.irq_ack_notifier_list, link) if (kian->gsi == gsi) @@ -237,8 +246,6 @@ out: #define ROUTING_ENTRY1(irq) IOAPIC_ROUTING_ENTRY(irq) #ifdef CONFIG_X86 -#define SELECT_PIC(irq) \ - ((irq) < 8 ? KVM_IRQCHIP_PIC_MASTER : KVM_IRQCHIP_PIC_SLAVE) # define PIC_ROUTING_ENTRY(irq) \ { .gsi = irq, .type = KVM_IRQ_ROUTING_IRQCHIP, \ .u.irqchip.irqchip = SELECT_PIC(irq), .u.irqchip.pin = (irq) % 8 } |