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-rw-r--r--virt/kvm/arm/vgic.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 897c849..c000e97 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -31,6 +31,7 @@
#include <asm/kvm_emulate.h>
#include <asm/kvm_arm.h>
#include <asm/kvm_mmu.h>
+#include <trace/events/kvm.h>
/*
* How the whole thing works (courtesy of Christoffer Dall):
@@ -1083,6 +1084,7 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
u32 status = vgic_get_interrupt_status(vcpu);
struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
bool level_pending = false;
+ struct kvm *kvm = vcpu->kvm;
kvm_debug("STATUS = %08x\n", status);
@@ -1118,6 +1120,17 @@ static bool vgic_process_maintenance(struct kvm_vcpu *vcpu)
*/
vgic_dist_irq_clear_soft_pend(vcpu, vlr.irq);
+ /*
+ * kvm_notify_acked_irq calls kvm_set_irq()
+ * to reset the IRQ level. Need to release the
+ * lock for kvm_set_irq to grab it.
+ */
+ spin_unlock(&dist->lock);
+
+ kvm_notify_acked_irq(kvm, 0,
+ vlr.irq - VGIC_NR_PRIVATE_IRQS);
+ spin_lock(&dist->lock);
+
/* Any additional pending interrupt? */
if (vgic_dist_irq_get_level(vcpu, vlr.irq)) {
vgic_cpu_irq_set(vcpu, vlr.irq);
@@ -1913,3 +1926,38 @@ out_free_irq:
free_percpu_irq(vgic->maint_irq, kvm_get_running_vcpus());
return ret;
}
+
+int kvm_irq_map_gsi(struct kvm *kvm,
+ struct kvm_kernel_irq_routing_entry *entries,
+ int gsi)
+{
+ return gsi;
+}
+
+int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
+{
+ return pin;
+}
+
+int kvm_set_irq(struct kvm *kvm, int irq_source_id,
+ u32 irq, int level, bool line_status)
+{
+ unsigned int spi = irq + VGIC_NR_PRIVATE_IRQS;
+
+ trace_kvm_set_irq(irq, level, irq_source_id);
+
+ BUG_ON(!vgic_initialized(kvm));
+
+ if (spi > kvm->arch.vgic.nr_irqs)
+ return -EINVAL;
+ return kvm_vgic_inject_irq(kvm, 0, spi, level);
+
+}
+
+/* MSI not implemented yet */
+int kvm_set_msi(struct kvm_kernel_irq_routing_entry *e,
+ struct kvm *kvm, int irq_source_id,
+ int level, bool line_status)
+{
+ return 0;
+}
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