[SLOF] [PATCH] Do not try to use virtio-gpu in VGA mode

[Thomas Huth]

On 10.11.2016 12:51, Thomas Huth wrote:
> virtio-gpu and virtio-vga share the same PCI ID (but have a
> different PCI class). But since virtio-gpu does not have the VGA
> register interface anymore, we should never try to use these
> registers in SLOF, i.e. we must not include qemu-vga.fs in this
> case.
> 
> Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1375166
> Signed-off-by: Thomas Huth <thuth at redhat.com>
> ---
>  board-qemu/slof/pci-device_1af4_1050.fs | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/board-qemu/slof/pci-device_1af4_1050.fs b/board-qemu/slof/pci-device_1af4_1050.fs
> index 516056a..9448006 100644
> --- a/board-qemu/slof/pci-device_1af4_1050.fs
> +++ b/board-qemu/slof/pci-device_1af4_1050.fs
> @@ -10,6 +10,13 @@
>  \ *     IBM Corporation - initial implementation
>  \ ****************************************************************************/
>  
> -s" virtio [ vga ]" type cr
> +\ Note: The PCI ID 1af4:1050 is used for both, virtio-vga and virtio-gpu
> +\ devices. Only the first one provides a VGA interface that we currently
> +\ support in SLOF.
>  
> -s" qemu-vga.fs" included
> +my-space pci-class@ 30000 = IF
> +    s" virtio [ vga ]" type cr
> +    s" qemu-vga.fs" included
> +ELSE
> +    s" virtio [ gpu ]" type cr
> +THEN

Please ignore this version of the patch - I still need to call
pci-device-generic-setup for virtio-gpu devices which is not done here.
I'll send a v2...

 Thomas