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Re: [Qemu-devel] [PATCH] Fix pc migration from qemu <= 1.5


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] Fix pc migration from qemu <= 1.5
Date: Mon, 07 Oct 2013 23:44:21 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9

Il 07/10/2013 22:57, Cole Robinson ha scritto:
> The following commit introduced a migration incompatibility:
> 
> commit 568f0690fd9aa4d39d84b04c1a5dbb53a915c3fe
> Author: David Gibson <address@hidden>
> Date:   Thu Jun 6 18:48:49 2013 +1000
> 
>     pci: Replace pci_find_domain() with more general pci_root_bus_path()
> 
> The issue is that i440fx savevm idstr went from 0000:00:00.0/I440FX to
> 0000:00.0/I440FX. Unfortunately we are stuck with the breakage for
> 1.6 machine types.
> 
> Add a compat property to maintain the busted idstr for the 1.6 machine
> types, but revert to the old style format for 1.7+, and <= 1.5.
> 
> Tested with migration from qemu 1.5, qemu 1.6, and qemu.git.
> 
> Signed-off-by: Cole Robinson <address@hidden>

Reviewed-by: Paolo Bonzini <address@hidden>



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