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Re: [Xen-devel] VGA passthrough on unstable

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] VGA passthrough on unstable
From: Liwei <xieliwei@xxxxxxxxx>
Date: Fri, 6 May 2011 01:59:29 +0800
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On 6 May 2011 01:06, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> Yeah I didn't mean you to post the actual BIOS image file,
> only the Xen patches that support loading the BIOS image from specified file.
> (so that people don't have to hardcode the BIOS image to custom binaries).

That I have not started and will probably need some work integrating a
hex converter (or maybe require the user to supply the converted
binary) and finding out how xen/qemu handles the configuration files.

> I think other people who tried those patches (and got them working)
> had to modify the vbar/pbar ranges to match their hardware..
> btw the error message above mentions alignment.. did you try the
> alignment option for xen-pciback?
> -- Pasi

Where do I modify the ranges? Is it the bunch of DWordMemory macros in
dsdt.asl? And how do I determine the range that I must use?

I did a quick test by appending pci=resource_alignment=[all the
pciback devices] to my boot command, it didn't seem to trigger any
changes in my bootlog nor the guest booting, is that the right option?

Come to think of it, why are there errors for BDF 00:05.0 and 00:06.0
when only 01:00.0 and 01:00.1 is passed in?

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