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 5-12.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Reviewed-by: Sergio Lopez <s...@redhat.com>
Reviewed-by: Igor Mammedov <imamm...@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 75eca7306b11..1bcd57a6fd80 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -125,7 +125,7 @@ static void microvm_devices_init(MicrovmMachineState *mms)
kvmclock_create();
- mms->virtio_irq_base = 5;
+ mms->virtio_irq_base = x86_machine_is_acpi_enabled(x86ms) ? 16 : 5;
for (i = 0; i < VIRTIO_NUM_TRANSPORTS; i++) {
sysbus_create_simple("virtio-mmio",
VIRTIO_MMIO_BASE + i * 512,
--
2.18.4
