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[Qemu-devel] Re: [PATCH 1/6] Make fw_cfg interface 32-bit aware

From: Anthony Liguori
Subject: [Qemu-devel] Re: [PATCH 1/6] Make fw_cfg interface 32-bit aware
Date: Wed, 11 Nov 2009 18:14:28 -0600
User-agent: Thunderbird (X11/20090825)

Alexander Graf wrote:
Juan, I'd really love to learn some new voodoo :-).
This whole new qdev whatever based save format was supposed to make things like this easy, right? I would've known what to do with the old code ...

I think Juan's mentioned something about writing a doc explaining how to use VMState correctly. I think it would certainly be helpful for situations like this.

But the most important part of VMState is that it converts something that was previously open coded and opaque to something that is data-driven and introspectable. I think it's done an extremely good job of achieving those goals. As we get everything converted, we can potentially figure out some ways to make this all a bit easier to understand. Right now, I think how we support backwards compatibility is admittedly awkward.


Anthony Liguori


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