From: Joerg Roedel <joro@8bytes.org>
To: Prasad Joshi <prasadjoshi124@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: IO_PAGE_FAULT while booting.
Date: Mon, 17 Jan 2011 18:41:30 +0100 [thread overview]
Message-ID: <20110117174130.GO6376@8bytes.org> (raw)
In-Reply-To: <AANLkTim+oRGAxxv43rrViCy3F8rWuGbPXBSqGBjA0hQT@mail.gmail.com>
On Mon, Jan 17, 2011 at 05:08:42PM +0000, Prasad Joshi wrote:
> Please find the information you requested attached with this mail.
> Also attaching the output of lspci -vvv -xxx incase it is useful.
Thanks, I'll have a look at it.
> I would be interested in understanding the problem. If possible can
> you please let me know what does this error indicate?
The error indicates that the device in question tried a dma transfer to
a location which it is not allowed to access. To most likely reason is
that the IOMMU was setup before the BIOS was giving away the device to
the OS. But other reasons are also possible. I'll let you know when I
know more.
Joerg
next prev parent reply other threads:[~2011-01-17 17:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-17 12:30 IO_PAGE_FAULT while booting Prasad Joshi
2011-01-17 14:03 ` Joerg Roedel
[not found] ` <AANLkTim+oRGAxxv43rrViCy3F8rWuGbPXBSqGBjA0hQT@mail.gmail.com>
2011-01-17 17:41 ` Joerg Roedel [this message]
2011-01-17 17:53 ` Joerg Roedel
[not found] ` <AANLkTik_qSfMBQ1q9VQTTnhWR1Qw4wyYkkwFMxdM=jzt@mail.gmail.com>
[not found] ` <20110128151522.GR6376@8bytes.org>
[not found] ` <AANLkTin0CYJrDAXRQ71oGpMKzjUBG5-27Y6f5F45oPWi@mail.gmail.com>
2011-01-28 15:44 ` Joerg Roedel
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