Re: [Qemu-devel] [PATCH 0/9] wire up -g <width>x<height> switch for virtio and qxl.

[Mark Cave-Ayland]

On 21/02/17 22:14, Gerd Hoffmann wrote:

>   Hi,
> 
> Made a nice patch series out of it, first cleaning up graphics_* variables,
> then adding support for -g to virtio (just works), qxl (needs guest driver
> fixes) and stdvga (needs virtual hardware update, and therefore also an
> guest driver update for obvious reasons).
> 
> linux kernel patches to test qxl and stdvga are here:
>   https://www.kraxel.org/cgit/linux/log/?h=qxl-display-size
> 
> please review & test,
>   Gerd

Interestingly enough, there have been recent discussions from the guys
over at emaculation as to whether it would be possible to pass in valid
resolutions from the host graphics driver for full-screen MacOS 9
emulation in QEMU.

With this patchset I believe Ben's OS 9 VGA driver could read the
suggested resolution from the command line via the QEMU extended VGA
registers, so I'm wondering if it would make sense to have a similar
mechanism for passing in a range of resolutions from the local video
driver that could be offered by the guest driver? Or is the normal guest
driver behaviour to just offer the standard set of *GA resolutions plus
whatever custom resolution is supplied via -g?


ATB,

Mark.