Re: [Qemu-devel] Are "info pic" and "info irq" still of any use?

[Markus Armbruster <armbru@redhat.com>]

Paolo Bonzini <pbonzini@redhat.com> writes:

> On 31/03/2015 11:56, Markus Armbruster wrote:
>> These commands look like bit-rotted development aids to me.
>> 
>> They're limited to just a few interrupt controllers.  For the most
>> common machine types and accelerators, they do nothing.
>> 
>> They complicate David Gibson's work on disentangling dependencies on
>> ISA.
>> 
>> I'm cc'ing the maintainers of all machines that can be configured in a
>> way that makes these commands do something.  Please speak up if you
>> think they provide value.
>
> For x86, they can be removed.  However, it would be nice to provide
> access to the same information via QOM, especially for "info pic".  This
> is the old QIDL project.

I guess you mean introspecting device state via QOM, thus QMP.  Would be
nice indeed, and much more useful than on-off hacks like "info pic".

Should be no harder than serializing device state, which we already do
for migration.  At least in theory.  In practice, ...