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Re: [Xen-devel] Using LinuxBIOS as virtual firmware

To: "Lu, Yinghai" <yinghai.lu@xxxxxxx>
Subject: Re: [Xen-devel] Using LinuxBIOS as virtual firmware
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Sat, 15 Jul 2006 08:38:04 +0100
Cc: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, Anthony Liguori <aliguori@xxxxxxxxxx>, Stefan Reinauer <stepan@xxxxxxxxxxxx>, rminnich@xxxxxxxx, John Levon <levon@xxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Michael Loehr <MLOEHR@xxxxxxxxxx>, Mark Williamson <mark.williamson@xxxxxxxxxxxx>
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On 15 Jul 2006, at 01:40, Lu, Yinghai wrote:

Is it a good way?

Any comment?

It would be helpful to have a clearer explanation of the limitations of the current firmware, the benefits of your new approach, and likely effort and steps needed to get there. Also to compare that with the difficulty of solving any current problems by simply patching the current code base.

For example, if the only aim is to emulate AMD64 platforms more accurately, maybe that is best done by evolving the current code. But moving to LinuxBIOS might have other benefits too -- if so they need explaining.

Bear in mind also there's an increasing amount of work going into hvmloader (e.g., SMBIOS patches) that will probably be impacted by a move to a whole new firmware architecture.

 -- Keir

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