Re: [Xen-devel] Re: windows7 installer lockup with viridian=1

To:	Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Subject:	Re: [Xen-devel] Re: windows7 installer lockup with viridian=1
From:	Andrew Lyon <andrew.lyon@xxxxxxxxx>
Date:	Sat, 23 May 2009 13:59:42 +0100
Cc:	Frank van der Linden <Frank.Vanderlinden@xxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Wed, Apr 29, 2009 at 9:08 AM, Tim Deegan <Tim.Deegan@xxxxxxxxxx> wrote:
> At 09:04 +0100 on 28 Apr (1240909473), Tim Deegan wrote:
>> At 22:52 +0100 on 27 Apr (1240872772), Frank van der Linden wrote:
>> Win7 changes the meaning of some of the bits in the viridian interface,
>> so with what we have now it ends up thinking it doesn't have to EOI any
>> interrupts (or something similar).  A patch is on the way soon.
>
> Does the attached patch help?
>
> (Keir, please don't apply it yet)
>
> Tim.
>
> --
> Tim Deegan <Tim.Deegan@xxxxxxxxxx>
> Principal Software Engineer, Citrix Systems (R&D) Ltd.
> [Company #02300071, SL9 0DZ, UK.]
>
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>

Sorry, I got sidetracked and didn't get around to testing the patch,
I've now tested it and can report that it solves the problem of
windows 7 locking up on boot.

And performance is much better with viridian enabled, previously it
was quite laggy in both vnc and rdp even with nothing much running,
its noticeably better now.

Andy

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Re: [Xen-devel] Re: windows7 installer lockup with viridian=1