With ACPI enabled and IO-APIC being properly declared in the ACPI tables
we can use interrupt lines 16-23 for virtio and avoid shared interrupts.
With acpi disabled we continue to use lines 8-15.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
hw/i386/microvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 834b10aee0a2..139181daed06 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -122,7 +122,7 @@ static void microvm_devices_init(MicrovmMachineState *mms)
kvmclock_create();
- mms->virtio_irq_base = 8;
+ mms->virtio_irq_base = acpi_enabled ? 16 : 8;
for (i = 0; i < VIRTIO_NUM_TRANSPORTS; i++) {
sysbus_create_simple("virtio-mmio",
VIRTIO_MMIO_BASE + i * 512,
--
2.18.2
