[libvirt] [PATCH] qemu: Support ram bar size for qxl devices

[Daniel P. Berrange]

On Thu, Jan 17, 2013 at 09:35:22PM +0200, Alon Levy wrote:
> Adds a qxl-ram attribute globaly to the video.model element, that changes
> the resulting qemu command line only if video.type == "qxl".
> 
> That attribute gets a default value of 64*1024 only if model.type is
> "qxl". In effect not changing any xml or argv for non qxl devices.
> 
> For qxl devices a new property is set:
> -global qxl-vga.ram_size=<ram>*1024
> or
> -global qxl.ram_size=<ram>*1024
> 
> For the main and secondary qxl devices respectively.
> 
> The default for the qxl ram bar is the same as the default for the qxl
> vram bar, 64*1024.
> ---
> I've added a qxl-ram attribute. There is no precedent for adding am attribute
> prefixed like this, so I'm open for any other suggestion on how to do it.

What is the difference between this new RAM size and what we currently
set for ram size.  That will influence how we pick a good name, ie
one with any qxl prefix, which is not something we can use.

Daniel
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