On Mon, Jul 27, 2020 at 01:59:05PM +0200, David Hildenbrand wrote:
> Trying to run simple virtio-mem-pci examples currently fails with
> qemu-system-x86_64: -device virtio-mem-pci,id=vm0,memdev=mem0,node=0,
> requested-size=300M: device is modern-only, use disable-legacy=on
> due to the added safety checks in 9b3a35ec8236 ("virtio: verify that legacy
> support is not accidentally on").
>
> As noted by Conny, we have to force virtio version 1. While at it, use
> qdev_realize() to set the parent bus and realize - like most other
> virtio-*-pci implementations.
>
> Fixes: 0b9a2443a48b ("virtio-pci: Proxy for virtio-mem")
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
In the future, pls add a changelog here.
E.g.
changes from v1:
- rebased on master
- updated commit log to address mst's comments
Anyway, queued.
Thanks!
> hw/virtio/virtio-mem-pci.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/hw/virtio/virtio-mem-pci.c b/hw/virtio/virtio-mem-pci.c
> index d375280ee1..590cec041b 100644
> --- a/hw/virtio/virtio-mem-pci.c
> +++ b/hw/virtio/virtio-mem-pci.c
> @@ -21,8 +21,8 @@ static void virtio_mem_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
> VirtIOMEMPCI *mem_pci = VIRTIO_MEM_PCI(vpci_dev);
> DeviceState *vdev = DEVICE(&mem_pci->vdev);
>
> - qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
> - object_property_set_bool(OBJECT(vdev), "realized", true, errp);
> + virtio_pci_force_virtio_1(vpci_dev);
> + qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
> }
>
> static void virtio_mem_pci_set_addr(MemoryDeviceState *md, uint64_t addr,
> --
> 2.26.2