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Re: [Qemu-devel] Current State of Block Filter
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From: |
Benoît Canet |
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Subject: |
Re: [Qemu-devel] Current State of Block Filter |
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Date: |
Tue, 15 Jul 2014 22:57:54 +0200 |
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User-agent: |
Mutt/1.5.23 (2014-03-12) |
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