Re: [Qemu-devel] [RESEND][PATCH v3] Generalize -machine command line option

[Richard W.M. Jones]

On Mon, Jul 25, 2011 at 07:47:51AM -0500, Anthony Liguori wrote:
> On 07/25/2011 07:44 AM, Alexander Graf wrote:
> >
> >On 25.07.2011, at 14:05, Peter Maydell wrote:
> >
> >>On 25 July 2011 12:48, Peter Maydell<address@hidden>  wrote:
> >>>For ARM you absolutely should not be relying on the default
> >>>machine type (not least because it's an incredibly ancient
> >>>dev board which nobody uses any more). An ARM kernel is
> >>>generally fairly specific to the hardware platform being
> >>>emulated, so you should know which machine you're intending
> >>>to run on and specify it explicitly.
> >>
> >>In fact having thought about it a bit I'm going to go further
> >>and say that the whole idea of a "default machine" is a rather
> >>x86-centric idea -- most architectures don't really have a
> >>single machine type that's used by just about everybody,
> >>always has been, and isn't likely to become obsolete in the
> >>future. So if we're reworking the command line API to
> >>supersede "-M" then we shouldn't have a default at all.
> >
> >That's not exactly true. For PPC, everyone so far expects a Mac to pop up.
> 
> Except if you're running on an IBM Power box, then you definitely
> expect a pseries guest to pop up.
> 
> We really need to enable the default config file (yes, we have a
> default config file) can express the default machine.

+1 to this.

I was going to say there's missing information here, ie. if I had a
Debian/arm kernel know, what machine should I use, but it looks like a
config file would provide this missing information.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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