[yocto] Add extra parameters for qemu script

[Richard Purdie]

On Thu, 2010-12-09 at 12:44 -0800, Garman, Scott A wrote:
> However, one thing I feel the need to run by Richard, as he expressed 
> some preferences with how the poky-qemu script would work with regard to 
> options.
> 
> Richard: Criping's patch would remove the standalone options we had to 
> the poky-qemu script (e.g, nographic, serial) and instead requires the 
> user to specify them in one command option which can take any qemu 
> command switch.
> 
> So for example:
> 
> poky-qemu qemux86 nographic
> 
> would become:
> 
> poky-qemu qemux86 "<-nographic>"
> 
> The benefit of this is that this allows the user to specify any qemu 
> option they wish. Previously they were limited by the options we allowed 
> them to specify (which were quite limited).
> 
> I tend to feel that this approach is more flexible, and scales better 
> than having to support each and every qemu option with our own script 
> syntax. Is this acceptable, or should we continue to support our own 
> custom options in addition to Criping's new approach?

My gut feeling is that having some simplified way to trigger possibly
complex option combinations is still desirable but adding a way to pass
additional custom commandline is equally good. This gives us the maximum
flexibility moving forwards but keeps the script easy to use?

Cheers,

Richard