Re: [Qemu-devel] [PATCH 5/9] virtio-vga: add '-vga virtio' support

[Max Reitz <mreitz@redhat.com>]

On 2015-03-13 at 05:47, Gerd Hoffmann wrote:
> Some convinience fluff:  Add support for '-vga virtio', also add
> virtio-vga to the list of vga cards so '-device virtio-vga' will
> turn off the default vga.
>
> Written by Dave Airlie and Gerd Hoffmann.
>
> Signed-off-by: Dave Airlie <airlied@redhat.com>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>   hw/pci/pci.c            |  2 ++
>   include/sysemu/sysemu.h |  2 +-
>   qemu-options.hx         |  4 +++-
>   vl.c                    | 13 +++++++++++++
>   4 files changed, 19 insertions(+), 2 deletions(-)

Hm, the other VGA devices which support only PCI ("vmware" and "qxl") 
emit explicit error messages in isa_vga_init(). Maybe we should do the 
same? Without, the initialization fails silently and qemu starts, but 
there is no display ("-machine isapc -display virtio").

Max