vmm: start with irq 1 for virtio-mmio
Previously we started with irq 0, and that worked with Linux 5.3. With
5.16, it no longer works.
Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>
diff --git a/tests/vmm/vmrunkernel.c b/tests/vmm/vmrunkernel.c
index 97b49b6..e13cace 100644
--- a/tests/vmm/vmrunkernel.c
+++ b/tests/vmm/vmrunkernel.c
@@ -656,9 +656,8 @@
/* Append all the virtio mmio base addresses. */
- /* Since the lower number irqs are no longer being used, the
- * irqs can now be assigned starting from 0. */
- vm->virtio_mmio_devices[i]->irq = i;
+ /* Linux barfs if you give it IRQ 0 */
+ vm->virtio_mmio_devices[i]->irq = i + 1;
len = snprintf(cmdlinep, cmdlinesz,
"\n virtio_mmio.device=1K@0x%llx:%lld",
vm->virtio_mmio_devices[i]->addr,
