MFC 266125:

Implement a PCI interrupt router to route PCI legacy INTx interrupts to
the legacy 8259A PICs.

2 files changed, 16 insertions, 0 deletions

diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index b853ae7..5e630f8 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -507,6 +507,7 @@ int
 vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq)
 {
 	struct vm_isa_irq isa_irq;
+
 	bzero(&isa_irq, sizeof(struct vm_isa_irq));
 	isa_irq.atpic_irq = atpic_irq;
 	isa_irq.ioapic_irq = ioapic_irq;
@@ -515,6 +516,19 @@ vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq)
 }
 
 int
+vm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq,
+    enum vm_intr_trigger trigger)
+{
+	struct vm_isa_irq_trigger isa_irq_trigger;
+
+	bzero(&isa_irq_trigger, sizeof(struct vm_isa_irq_trigger));
+	isa_irq_trigger.atpic_irq = atpic_irq;
+	isa_irq_trigger.trigger = trigger;
+
+	return (ioctl(ctx->fd, VM_ISA_SET_IRQ_TRIGGER, &isa_irq_trigger));
+}
+
+int
 vm_inject_nmi(struct vmctx *ctx, int vcpu)
 {
 	struct vm_nmi vmnmi;
diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h
index c1a4b35..88e9947 100644
--- a/lib/libvmmapi/vmmapi.h
+++ b/lib/libvmmapi/vmmapi.h
@@ -78,6 +78,8 @@ int	vm_ioapic_pincount(struct vmctx *ctx, int *pincount);
 int	vm_isa_assert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
 int	vm_isa_deassert_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
 int	vm_isa_pulse_irq(struct vmctx *ctx, int atpic_irq, int ioapic_irq);
+int	vm_isa_set_irq_trigger(struct vmctx *ctx, int atpic_irq,
+	    enum vm_intr_trigger trigger);
 int	vm_inject_nmi(struct vmctx *ctx, int vcpu);
 int	vm_capability_name2type(const char *capname);
 const char *vm_capability_type2name(int type);