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microvm/acpi: use GSI 16-23 for virtio 

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 <kraxel@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200915120909.20838-11-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2020-09-15 14:08:58 +02:00
parent 3b98c65f75
commit 55c4b06997
1 changed files with 1 additions and 1 deletions
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2
hw/i386/microvm.c
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@ -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,