"Michael S. Tsirkin" <m...@redhat.com> writes:

> On Wed, Oct 30, 2013 at 01:56:40PM +0100, arm...@redhat.com wrote:
>> From: Markus Armbruster <arm...@redhat.com>
>> 
>> Currently, we get SeaBIOS defaults: manufacturer Bochs, product Bochs,
>> no version.  Best SeaBIOS can do, but we can provide better defaults:
>> manufacturer QEMU, product & version taken from QEMUMachine desc and
>> name.
>> 
>> Take care to do this only for new machine types, of course.
>> 
>> Signed-off-by: Markus Armbruster <arm...@redhat.com>
>
> I feel applying this one would be a mistake.
>
> Machine desc is for human readers.
> For example, it currently says "Standard PC (Q35 + ICH9, 2009)"
> but if we add a variant with IDE compatibility mode we will likely want to
> tweak it to say "Standard PC (Q35 + ICH9/AHCI mode, 2009)"
> and add another one saying ""Standard PC (Q35 + ICH9/compat mode,
> 2009)".
>
> In other words we want the ability to tweak
> description retroactively, and exposing it to guest will
> break this ability.

These will be new machine types, won't they?

> So we really need a new field not tied to the human description.

The SMBIOS string is *also* for human readers.

I can't see why we should jump through hoops *now* to separate the two.
The values are the same.  I don't expect us to change them for old
machine types.  But if we ever feel the need to change them in one place
but not the other, nothing will prevent us from splitting them up then.

Pay as you go, not pay as you fear you might have to go some day.

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