IOMMU/Passthrough disabled on XW4600

[naturalblue]

Hi

Firstly, apologies if this has been raised before. (It was suggested I place this here)

 

I have a HP xw4600 workstation PC and am trying to get iommu working.

The bios has VT-x and VT-d enabled as shown in the photos.

In PCI setting it shows 1 of the cards coming up as disabled but it is showing in the logs on unraid.

Has anyone any idea, I have attached logs from my system.

My BIOS is the latest: 01.34 Rev A.

 

ARK says my chip supports both vt-x and vt-d: http://ark.intel.com/products/33922/Intel-Core2-Quad-Processor-Q9300-6M-Cache-2_50-GHz-1333-MHz-FSB

 

The 2 graphics cards are : AMD/ATI R7 260X and NVIDIA GFX 1800. I also have an old PCI MGI Matrox card fro unRAID to use (shows the CLI).

 

I have also tried passing this in the sysconfig.cfg file

vfio_iommu_type1.allow_unsafe_interrupts=1 initrd=/bzroot

On bootup I get failed

Apr 7 09:12:18 Tower kernel: WARNING: CPU: 0 PID: 0 at drivers/iommu/dmar.c:844 warn_invalid_dmar+0x70/0x7d Apr 7 09:12:18 Tower kernel: Your BIOS is broken; DMAR reported at address fed90000 returns all ones!

 

If anyone can help I'd appreciate it. If anymore info is needed please let me know.

 

 

 

 

 

System Devices.txt

tower-diagnostics-20170410-1342.zip

[1812]

https://bugzilla.redhat.com/show_bug.cgi?id=896652

 

Try a different bios, either newer or older.

 

If neither of those work, try rolling back to unRaid ver. 6.2.4

[naturalblue]

Hi

I was given a Thinkstation S20 and placed my drives and USB key in it. Was able to get VM passthrough working almost straight away. Seems HP Xw4600 is a no go because of the BIOS.

Thanks for the help