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Re: [Qemu-devel] [PATCH 15/46] Rework loadvm path for subloops

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 15/46] Rework loadvm path for subloops
Date: Sat, 05 Jul 2014 12:26:00 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 
Il 04/07/2014 19:41, Dr. David Alan Gilbert (git) ha scritto:

From: "Dr. David Alan Gilbert" <address@hidden>

Postcopy needs to have two migration streams loading concurrently;
one from memory (with the device state) and the other from the fd
with the memory transactions.


Can you explain this?

I would have though the order is

    precopy RAM and everything
    prepare postcopy RAM ("sent && dirty" bitmap)
    finish precopy non-RAM
    finish devices
    postcopy RAM
Why do you need to have all the packaging stuff and a separate memory-based migration stream for devices? I'm sure I'm missing something. :) 

Paolo
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