Re: [Qemu-devel] QEMU/pc and scsi disks

[Paul Brook]

On Sunday 04 March 2007 09:28, Avi Kivity wrote:
> Anthony Liguori wrote:
> >> 1.  Any option should be settable either in the config file or
> >> command line.  In other words, the user should not be forced to use a
> >> config file.  This is useful for management programs who keep all
> >> options in an internal database, and for users who can experiment via
> >> a ^P edit edit edit <enter>.
> >
> > I think we should still provide the ability to set the most common
> > options via the command line.  I'm also fine with specifying single
> > options on the command line.  I suspect though that being able to do
> > -config - is more useful for management tools than building large
> > strings of command line options.
>
> Out of curiosity, why?  If the options are store in some database, as is
> likely, surely it is easier to generate a longish command line than to
> generate a unique name for a file, remove it if it already exists, write
> out the data, launch qemu, and clean up the file later?  And for
> migration, you have to regenerate it, since some options may have
> changed (cdrom media).

You're going to start hitting commandline length limits fairly rapidly 
(Windows in particular has a fairly low limit).

Paul