Re: [Qemu-devel] [PATCH] virtio-blk: add msi support.

[Mark McLoughlin <markmc@redhat.com>]

On Wed, 2009-08-12 at 12:47 +0200, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  hw/pc.c         |    4 ++++
>  hw/virtio-pci.c |    8 ++++++--
>  2 files changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/pc.c b/hw/pc.c
> index cc6e7e8..cccb865 100644
> --- a/hw/pc.c
> +++ b/hw/pc.c
> @@ -1487,6 +1487,10 @@ static QEMUMachine pc_machine_v0_10 = {
>              .driver   = "virtio-net-pci",
>              .property = "vectors",
>              .value    = stringify(0),
> +        },{
> +            .driver   = "virtio-blk-pci",
> +            .property = "vectors",
> +            .value    = stringify(0),

This means that MSI is enabled for virtio-blk with the pc-0.11 machine
type.

Shouldn't we add a pc-0.12 machine type and disable MSI for pc-0.11?

Cheers,
Mark.