From: Noboru Iwamatsu <n_iwamatsu@jp.fujitsu.com>
To: keir.fraser@eu.citrix.com
Cc: xen-devel@lists.xensource.com, weidong.han@intel.com
Subject: Re: [PATCH] VT-d: improve RMRR validity checking
Date: Fri, 22 Jan 2010 10:35:45 +0900 [thread overview]
Message-ID: <4B5900F1.1040105@jp.fujitsu.com> (raw)
In-Reply-To: <C77E1D66.6FF7%keir.fraser@eu.citrix.com>
Hi,
>> I re-send the DRHD-fix patch.
>>
>> If DRHD does not have existent devices, ignore it.
>> If DRHD has both existent and non-existent devices, consider it invalid
>> and not register.
>
> What happens if you register a DRHD with some but not all devices existing?
> Do bad things happen on some systems?
In the case I have posted the log, DRHD has only non-existent devices,
and maybe its info is invalid. So iommu_enable_translation() failed and
became panic.
When DRHD has at least one existent device, I have not seen,
its info might be correct. I cannot judge it, so disabled at the patch.
Even if this DRHD-ignore patch is not accepted, we should validate the
DRHD and stop the PANIC.
next prev parent reply other threads:[~2010-01-22 1:35 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-21 2:46 [PATCH] VT-d: improve RMRR validity checking Han, Weidong
2010-01-21 8:25 ` Noboru Iwamatsu
2010-01-21 8:38 ` Han, Weidong
2010-01-21 10:03 ` Noboru Iwamatsu
2010-01-21 10:08 ` Noboru Iwamatsu
2010-01-21 10:19 ` Weidong Han
2010-01-21 10:27 ` Keir Fraser
2010-01-21 10:49 ` Weidong Han
2010-01-21 12:19 ` Noboru Iwamatsu
2010-01-21 12:46 ` Weidong Han
2010-01-21 14:01 ` Keir Fraser
2010-01-21 14:17 ` Sander Eikelenboom
2010-01-21 14:33 ` Keir Fraser
2010-01-22 2:12 ` Weidong Han
2010-01-22 2:38 ` Noboru Iwamatsu
2010-01-22 2:53 ` Weidong Han
2010-01-22 3:16 ` Noboru Iwamatsu
2010-01-22 8:47 ` Weidong Han
2010-01-22 9:19 ` Sander Eikelenboom
2010-01-22 12:15 ` Weidong Han
2010-01-22 12:32 ` Pasi Kärkkäinen
2010-01-23 12:40 ` Weidong Han
2010-01-23 13:08 ` Pasi Kärkkäinen
2010-01-23 14:33 ` Sander Eikelenboom
2010-01-23 14:54 ` [PATCH] VT-d: improve RMRR validity checking, documenting boot options Pasi Kärkkäinen
2010-01-25 16:40 ` Stephen Spector
2010-01-25 16:58 ` Documentation Xen-hypervisor and Dom0 xen-related boot options (was Re: [PATCH] VT-d: improve RMRR validity checking, documenting boot options) Sander Eikelenboom
2010-01-25 20:56 ` Stephen Spector
2010-01-27 11:33 ` Pasi Kärkkäinen
2010-01-25 7:06 ` [PATCH] VT-d: improve RMRR validity checking Noboru Iwamatsu
2010-01-25 7:56 ` Weidong Han
2010-01-25 9:02 ` Sander Eikelenboom
2010-01-25 9:11 ` Weidong Han
2010-01-25 9:22 ` Noboru Iwamatsu
2010-01-25 10:08 ` Weidong Han
2010-01-25 10:45 ` Sander Eikelenboom
2010-01-25 13:43 ` Keir Fraser
2010-01-25 13:57 ` Christian Tramnitz
2010-01-25 14:10 ` Weidong Han
2010-01-26 1:16 ` Noboru Iwamatsu
2010-01-26 5:51 ` Weidong Han
2010-01-26 6:38 ` Noboru Iwamatsu
2010-01-26 6:42 ` Weidong Han
2010-01-25 14:12 ` Weidong Han
2010-01-25 14:13 ` Han, Weidong
2010-03-09 21:39 ` Alex Williamson
2010-03-09 21:30 ` Konrad Rzeszutek Wilk
2010-03-09 21:57 ` Alex Williamson
2010-03-09 22:22 ` Konrad Rzeszutek Wilk
2010-03-09 23:05 ` Alex Williamson
2010-03-09 23:25 ` Alex Williamson
2010-03-10 2:13 ` Alex Williamson
2010-03-10 2:40 ` Weidong Han
2010-03-10 3:18 ` Alex Williamson
2010-03-10 3:28 ` Weidong Han
2010-03-10 3:37 ` Alex Williamson
2010-03-10 4:25 ` Weidong Han
2010-03-10 4:47 ` Alex Williamson
2010-03-10 7:03 ` Weidong Han
2010-03-10 13:56 ` Alex Williamson
2010-03-10 18:06 ` Alex Williamson
2010-03-11 2:11 ` Weidong Han
2010-03-11 2:32 ` Alex Williamson
2010-03-11 3:44 ` Weidong Han
2010-03-11 4:52 ` Alex Williamson
2010-03-11 8:30 ` Weidong Han
2010-01-21 15:28 ` Andrew Lyon
2010-01-21 15:04 ` Keir Fraser
2010-01-22 1:35 ` Noboru Iwamatsu [this message]
2010-01-21 10:13 ` Weidong Han
2010-01-21 12:09 ` Noboru Iwamatsu
2010-01-21 12:38 ` Weidong Han
2010-01-22 0:23 ` Noboru Iwamatsu
2010-01-21 8:45 ` Andrew Lyon
2010-01-21 10:03 ` Weidong Han
2010-01-21 9:15 ` Keir Fraser
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