RE: [Xen-devel] iommu: mapping reserved region failed - Q35 -VT-DIssue

["Ross Philipson" <Ross.Philipson@xxxxxxxxxx>]

Did you mention in an earlier email that you have the latest BIOS for
this system?

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Stefan Bauer
Sent: Friday, October 31, 2008 12:20 PM
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] iommu: mapping reserved region failed - Q35
-VT-DIssue

Ross Philipson schrieb:
> Attached is a printout of your DMAR tables. Focusing on the following
failures that occurred later in the boot process:
> 
> (XEN) domain_context_mapping: can't find drhd for device (bus=0 dev=1f
func=2)
> (XEN) [VT-D]iommu.c:1545:d0 intel_iommu_add_device: context mapping
failed
> (XEN) domain_context_mapping: can't find drhd for device (bus=0 dev=1f
func=5)
> (XEN) [VT-D]iommu.c:1545:d0 intel_iommu_add_device: context mapping
failed
> 
> The DMAR only has two DRHD with 1 and 3 scope entries respectively for
device endpoints (covering devices 00:1b.0, 00:03.0, 00:03.2, 00:03.3).
There are no scope entries for entire bridges and there is not an
INCLUDE_ALL DRHD. This is what is causing the failure - no match. It
seems odd to me that there are so few entries.

Is there anything i can do to work on that problem further?

Regards

-- 
Stefan

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