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[PATCH v4 10/21] microvm/acpi: use GSI 16-23 for virtio
From: |
Gerd Hoffmann |
Subject: |
[PATCH v4 10/21] microvm/acpi: use GSI 16-23 for virtio |
Date: |
Thu, 2 Jul 2020 22:48:48 +0200 |
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>
---
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
- Re: [PATCH v4 08/21] microvm/acpi: add minimal acpi support, (continued)
[PATCH v4 20/21] tests/acpi: add microvm test, Gerd Hoffmann, 2020/07/02
[PATCH v4 07/21] microvm: make virtio irq base runtime configurable, Gerd Hoffmann, 2020/07/02
[PATCH v4 21/21] tests/acpi: update expected data files for microvm, Gerd Hoffmann, 2020/07/02
[PATCH v4 13/21] x86: constify x86_machine_is_*_enabled, Gerd Hoffmann, 2020/07/02
[PATCH v4 12/21] microvm/acpi: disable virtio-mmio cmdline hack, Gerd Hoffmann, 2020/07/02
[PATCH v4 15/21] x86: move cpu plug from pc to x86, Gerd Hoffmann, 2020/07/02
[PATCH v4 06/21] acpi: move acpi_dsdt_add_power_button() to ged, Gerd Hoffmann, 2020/07/02
[PATCH v4 10/21] microvm/acpi: use GSI 16-23 for virtio,
Gerd Hoffmann <=
[PATCH v4 05/21] acpi: ged: add x86 device variant., Gerd Hoffmann, 2020/07/02
[PATCH v4 18/21] tests/acpi: allow microvm test data updates., Gerd Hoffmann, 2020/07/02
[PATCH v4 11/21] microvm/acpi: use seabios with acpi=on, Gerd Hoffmann, 2020/07/02
[PATCH v4 17/21] tests/acpi: clear bios-tables-test-allowed-diff.h, Gerd Hoffmann, 2020/07/02
[PATCH v4 14/21] x86: move acpi_dev from pc/microvm, Gerd Hoffmann, 2020/07/02
Re: [PATCH v4 00/21] microvm: add acpi support, no-reply, 2020/07/02
Re: [PATCH v4 00/21] microvm: add acpi support, no-reply, 2020/07/02