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qemu-patch-raspberry4/hw/s390x
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Stefano Garzarella d55f518248 virtio: skip legacy support check on machine types less than 5.1 
Commit 9b3a35ec82 ("virtio: verify that legacy support is not accidentally
on") added a check that returns an error if legacy support is on, but the
device does not support legacy.

Unfortunately some devices were wrongly declared legacy capable even if
they were not (e.g vhost-vsock).

To avoid migration issues, we add a virtio-device property
(x-disable-legacy-check) to skip the legacy error, printing a warning
instead, for machine types < 5.1.

Cc: qemu-stable@nongnu.org
Fixes: 9b3a35ec82 ("virtio: verify that legacy support is not accidentally on")
Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Suggested-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200921122506.82515-2-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:15:24 -04:00
..
3270-ccw.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
ap-bridge.c qdev: Drop qbus_set_hotplug_handler() parameter @errp 2020-07-02 06:25:29 +02:00
ap-device.c ap-device: Rename AP_DEVICE_TYPE to TYPE_AP_DEVICE 2020-09-09 13:20:22 -04:00
ccw-device.c qdev: set properties with device_class_set_props() 2020-01-24 20:59:15 +01:00
ccw-device.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
css-bridge.c qdev: Drop qbus_set_hotplug_handler() parameter @errp 2020-07-02 06:25:29 +02:00
css.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
event-facility.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
ipl.c s390x/protvirt: allow to IPL secure guests with -no-reboot 2020-07-24 08:35:22 +02:00
ipl.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
Kconfig kconfig: add CONFIG_MSI_NONBROKEN 2019-03-18 09:39:57 +01:00
meson.build virtio: add vhost-user-fs-ccw device 2020-09-23 13:41:58 +01:00
pv.c s390x: pv: Fix KVM_PV_PREP_RESET command wrapper name 2020-06-05 17:13:11 +02:00
s390-ccw.c vfio-ccw: Add support for the schib region 2020-06-18 12:13:54 +02:00
s390-pci-bus.c qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
s390-pci-bus.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
s390-pci-inst.c add device_legacy_reset function to prepare for reset api change 2020-01-30 16:02:03 +00:00
s390-pci-inst.h s390x/pci: add common function measurement block 2019-01-18 11:52:01 +01:00
s390-skeys-kvm.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
s390-skeys.c util: rename qemu_open() to qemu_open_old() 2020-09-16 10:33:48 +01:00
s390-stattrib-kvm.c vl/s390x: fixup ram sizes for compat machines 2020-04-02 17:10:09 +02:00
s390-stattrib.c qom: Put name parameter before value / visitor parameter 2020-07-10 15:18:08 +02:00
s390-virtio-ccw.c cphp: remove deprecated cpu-add command(s) 2020-09-29 02:14:30 -04:00
s390-virtio-hcall.c s390x: rename s390-virtio.h to s390-virtio-hcall.h 2017-09-19 18:31:31 +02:00
s390-virtio-hcall.h s390/kvm_virtio/linux-headers: remove traces of old virtio transport 2017-11-24 10:52:05 +01:00
sclp.c error: Eliminate error_propagate() manually 2020-07-10 15:18:08 +02:00
sclpcpu.c Clean up inclusion of sysemu/sysemu.h 2019-08-16 13:31:53 +02:00
sclpquiesce.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
tod-kvm.c sysemu: Split sysemu/runstate.h off sysemu/sysemu.h 2019-08-16 13:37:36 +02:00
tod-qemu.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
tod.c qdev: Convert bus-less devices to qdev_realize() with Coccinelle 2020-06-15 22:06:04 +02:00
trace-events trace-events: Shorten file names in comments 2019-03-22 16:18:07 +00:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vhost-user-fs-ccw.c virtio: add vhost-user-fs-ccw device 2020-09-23 13:41:58 +01:00
vhost-vsock-ccw.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-9p.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-balloon.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-blk.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-crypto.c virtio: Drop broken and superfluous object_property_set_link() 2020-07-22 07:57:07 -04:00
virtio-ccw-gpu.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-input.c virtio-ccw-input: fix description 2020-08-27 12:37:03 +02:00
virtio-ccw-net.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-rng.c virtio: Drop broken and superfluous object_property_set_link() 2020-07-22 07:57:07 -04:00
virtio-ccw-scsi.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw-serial.c qdev: Convert uses of qdev_set_parent_bus() with Coccinelle 2020-06-15 22:05:08 +02:00
virtio-ccw.c virtio: skip legacy support check on machine types less than 5.1 2020-09-29 02:15:24 -04:00
virtio-ccw.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00