From: "Benoît Canet" <benoit.canet@irqsave.net>
To: Wolfgang Richter <wolf@cs.cmu.edu>
Cc: benoit.canet@irqsave.net, Stefan Hajnoczi <stefanha@gmail.com>,
qemu-devel <qemu-devel@nongnu.org>, Kevin Wolf <kwolf@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] Current State of Block Filter
Date: Tue, 15 Jul 2014 22:57:54 +0200 [thread overview]
Message-ID: <20140715205754.GA24994@irqsave.net> (raw)
In-Reply-To: <CACO=3k4dSCqa2=Sce-Qi0a9WRuW_g2hY1L_rooAL6tn+mWzVTA@mail.gmail.com>
The Tuesday 15 Jul 2014 à 10:49:31 (-0400), Wolfgang Richter wrote :
> The way I see block filter currently implemented is as a special block
> device
> with `is_filter` set to true.
>
> Is this a correct characterization of the current incarnation?
Yes,
>
> If so, I was wondering if it is possible to "insert" a block filter layer
> on top
> of an existing block device once QEMU is executing (via QMP commands)?
No,
We would like to achieve that be we didn't have a way to do that while respecting
all the requirements.
>
> It seems possible to add block filter managed block devices, but I don't
> think
> I see a way of adding a block filter to an existing block device.
No way to do so right now.
Best regards
Benoît
>
> --
> Wolf
prev parent reply other threads:[~2014-07-15 20:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-15 14:49 [Qemu-devel] Current State of Block Filter Wolfgang Richter
2014-07-15 20:57 ` Benoît Canet [this message]
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