Re: [Xen-users] Enabling AMD-Vi IOMMU panics Xen

[Kyösti Mälkki <kyosti.malkki@xxxxxxxxx>]

On Fri, Apr 15, 2016 at 12:27 PM, Kyösti Mälkki <kyosti.malkki@xxxxxxxxx> wrote:

The IVHD entry ranges are wrong.

[048h 0072   1]                   Entry Type : 03
[049h 0073   2]                    Device ID : 0008
[04Bh 0075   1]                 Data Setting : 00

[04Ch 0076   1]                   Entry Type : 04
[04Dh 0077   2]                    Device ID : FFFE
[04Fh 0079   1]                 Data Setting : 00

This range is 0:1.0 to ff.1f.6. The very last function is not in the range?

[050h 0080   1]                   Entry Type : 43
[051h 0081   2]                    Device ID : FF00
[053h 0083   1]                 Data Setting : 00
[054h 0084   1]                     Reserved : 00
[055h 0085   2]        Source Used Device ID : 00A4
[057h 0087   1]                     Reserved : 00

[058h 0088   1]                   Entry Type : 04
[059h 0089   2]                    Device ID : FFFF
[05Bh 0091   1]                 Data Setting : 00

Attached an additional patch to remove some invalid entry in IVRS. I was able to do PCI passthru for NIC and ssh out of the guest OS with this, but I did not really check the situation without this patch applied.

Regards,

Kyösti Mälkki

Attachment: 0001-IVRS-override.patch
Description: Text Data

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