From: Weidong Han <weidong.han@intel.com>
To: "David P. Quigley" <dpquigl@tycho.nsa.gov>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Daniel Stodden <daniel.stodden@citrix.com>
Subject: Re: Xen 4.0 + PVOPS + Intel VTD + USB EHCI = BUG()
Date: Wed, 03 Feb 2010 11:08:21 +0800 [thread overview]
Message-ID: <4B68E8A5.6030405@intel.com> (raw)
In-Reply-To: <1265060140.20881.39.camel@moss-terrapins.epoch.ncsc.mil>
David P. Quigley wrote:
> On Sat, 2010-01-30 at 21:50 +0800, Han, Weidong wrote:
>
>> It's so weird pvops dom0 still detects DMAR and enables it after zap DMAR signature in Xen. Dom0 should not detect DMAR in ACPI after the signature is zapped.
>>
>> I suspect that your USB issue is caused by this. Pls have a try with turn off VT-d in pvops config (# CONFIG_DMAR is not set) to see if it solves your issue.
>>
>> Regards,
>> Weidong
>>
>> -----Original Message-----
>> From: David P. Quigley [mailto:dpquigl@tycho.nsa.gov]
>> Sent: Friday, January 29, 2010 12:10 AM
>> To: Han, Weidong
>> Cc: Pasi Kärkkäinen; Daniel Stodden; xen-devel@lists.xensource.com; Konrad Rzeszutek Wilk
>> Subject: RE: [Xen-devel] Xen 4.0 + PVOPS + Intel VTD + USB EHCI = BUG()
>>
>> I've attached the output from the patched xen hypervisor. I see the message being printed out so it appears to be clearing the signature.
>>
>> Dave
>>
>
> So I managed to sucessfully book my pvops dom0 kernel with VT-D on in my
> bios when I turned off DMAR from the dom0 kernel config. Is there
> anything else you would like me to do to help hunt this bug down?
>
> Dave
>
>
Could you dump ACPI in native Linux and Xen dom0? Let's see what
difference between "zap" and "no zap" DMAR signature.
Regards,
Weidong
next prev parent reply other threads:[~2010-02-03 3:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-21 22:27 What is the state of blktap2? David P. Quigley
2010-01-21 22:38 ` Pasi Kärkkäinen
2010-01-21 22:46 ` David P. Quigley
2010-01-21 22:55 ` Pasi Kärkkäinen
2010-01-21 22:59 ` Pasi Kärkkäinen
2010-01-21 23:09 ` David P. Quigley
2010-01-21 23:13 ` David P. Quigley
2010-01-22 7:14 ` Pasi Kärkkäinen
2010-01-22 18:43 ` Jeremy Fitzhardinge
2010-01-22 19:41 ` David P. Quigley
2010-01-21 23:00 ` David P. Quigley
2010-01-21 22:54 ` Daniel Stodden
2010-01-21 22:52 ` David P. Quigley
2010-01-22 22:10 ` David P. Quigley
2010-01-22 22:12 ` Konrad Rzeszutek Wilk
2010-01-22 22:22 ` David P. Quigley
2010-01-22 22:43 ` Konrad Rzeszutek Wilk
2010-01-25 23:23 ` David P. Quigley
2010-01-26 7:10 ` Pasi Kärkkäinen
2010-01-26 16:32 ` David P. Quigley
2010-01-26 16:47 ` Pasi Kärkkäinen
2010-01-26 16:49 ` David P. Quigley
2010-01-26 17:06 ` Pasi Kärkkäinen
2010-01-26 14:42 ` Konrad Rzeszutek Wilk
2010-01-26 16:42 ` David P. Quigley
2010-01-26 16:57 ` Konrad Rzeszutek Wilk
2010-01-26 17:46 ` David P. Quigley
2010-01-26 18:19 ` Xen 4.0 + PVOPS + Intel VTD + USB EHCI = BUG() Konrad Rzeszutek Wilk
2010-01-26 18:44 ` David P. Quigley
2010-01-26 19:24 ` David P. Quigley
2010-01-26 19:30 ` David P. Quigley
2010-01-26 19:46 ` Pasi Kärkkäinen
2010-01-26 20:21 ` David P. Quigley
2010-01-27 2:49 ` Han, Weidong
2010-01-27 18:48 ` David P. Quigley
2010-01-28 1:50 ` Han, Weidong
2010-01-28 16:10 ` David P. Quigley
2010-01-30 13:50 ` Han, Weidong
2010-02-01 21:35 ` David P. Quigley
2010-02-03 3:08 ` Weidong Han [this message]
2010-02-03 16:38 ` David P. Quigley
2010-02-04 1:59 ` Weidong Han
2010-02-04 16:05 ` David P. Quigley
2010-01-27 9:08 ` Sander Eikelenboom
2010-01-27 20:22 ` David P. Quigley
2010-01-28 9:24 ` Pasi Kärkkäinen
2010-01-28 14:49 ` David P. Quigley
2010-01-28 15:02 ` Pasi Kärkkäinen
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