Re: [Qemu-devel] [PATCH 1/3] Add args to -cdrom to define where is connected the cdrom

["Daniel P. Berrange" <berrange@redhat.com>]

On Sun, Oct 28, 2007 at 11:43:33PM +0100, Laurent.Vivier@bull.net wrote:
> From: Laurent Vivier <vivierl@frecb07144.(none)>
> 
> This patch allows to define where is connected the CDROM device (bus,
> unit).
> It extends the "-cdrom" syntax to add these paramaters:
> 
>      -cdrom file[,if=type][,bus=n][,unit=m]
> 
>  where "type" defines the interface (by default, "ide")
>        "n" defines the bus number (by default 1)
>        "m" defines the unit number (by default 0)


Having a separately named arg just for CDROMs was always rather odd/unhelpful.
I'd suggest that we leave all the -hda,hdb,hdc,-cdrom,-fda,-fdb etc unchanged
and use the -disk for setting up all types of disks, floppys, cdroms, etc. It
would just require one extra field for the -disk arg:

      -disk file[,if=type][,bus=n][,unit=m][,mode=mode]
 
  where "type" defines the interface. [ide,scsi,fd] (by default, "ide")
        "n" defines the bus number (by default 1)
        "m" defines the unit number (by default 0)
        "mode" defines one of [disk,floppy,cdrom]

If we ever up able to emulate other types of SCSI / IDE devices (tape drives,
cdr, dvd perhaps) then the 'mode' can easily be extended to cover them.


Regards,
Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|