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Re: [Qemu-block] [PATCH 1/1] blk: do not select PFLASH device for intern

From: Paolo Bonzini
Subject: Re: [Qemu-block] [PATCH 1/1] blk: do not select PFLASH device for internal snapshot
Date: Tue, 12 Jan 2016 16:35:14 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0

On 12/01/2016 16:20, Kevin Wolf wrote:
> > Flash is already being snapshotted as part of saving RAM state.  In 
> > fact, for this reason the device (at least the one used with OVMF; I 
> > haven't checked other pflash devices) can simply save it back to disk 
> > on the migration destination, without the need to use "migrate -b" or 
> > shared storage.
> Boy, is this ugly...
> What do you do with disk-only snapshots? The recovery only works as long
> as you have VM state.

Turns out I had misunderstood Denis's patch, but FWIW this _is_ done as
part of migration or savevm, so the VM state is available.


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