Re: [Qemu-devel] [PATCH v4] hmp: add info iothreads command

[Stefan Hajnoczi]

On Tue, Jun 23, 2015 at 02:19:07PM +0200, Christian Borntraeger wrote:
> Am 23.06.2015 um 13:57 schrieb Markus Armbruster:
> > Ting Wang <address@hidden> writes:
> > 
> >> Hi Luiz and Markus,
> >>
> >> Would you like to pick up this patch, which has
> >> been reviewed by Stefan and Fam?
> > 
> > Looks like this fell through the cracks back in March.  You should've
> > asked for merge much earlier.  Pinging the maintainer after two weeks is
> > fair.
> > 
> > I just did a monitor pull, and I can't yet say whether I'll do another
> > for 2.4.
> > 
> > Quick review inline.
> > 
> 
> Is there some patch available that allows someone to query the disks attached 
> to
> an iothread (or check if a disk uses iothreads?). I had several testers 
> asking why
> x-dataplane is off after specifying iothread. Maybe this information could be
> added here as well?

There is currently no way to query that by iothread.

The virtio-blk device's "iothread" property is a QOM link property, so
it is not displayed by "info qtree".  You should be able to see it with
qom-ls/qom-get but there is not human-friendly interface.

Stefan

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