Asus P8B75-B and Intel I3-3220T IOMMU

Dear list,

I started with kvm. It is based on a gentoo system with kernel 3.7.10 and qemu 1.2.2-r3 from the gentoo portage.
I tried to assign a PCIe card to a guest system.

I followed the manual on
http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM

And after I rebooted the system it says:
dmesg | grep -e DMAR -e IOMMU

[    0.000000] Intel-IOMMU: enabled
[    0.000000] Intel-IOMMU: disable GFX device mapping

But I cannot see similar lines like on the page.
Could it be, that my mainboard and/or CPU does not support IOMMU? Could it help to replace the CPU?

The current system is a ivy bridge system.

Thanks
Matthias

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

According to ark the CPU does not support VT-d:

http://ark.intel.com/products/65694/Intel-Core-i3-3220T-Processor-3M-Cache-2_80-GHz

I'm not aware of any i3 CPUs with VT-d. Thanks,

Alex

Hi Alex,

Am 17.03.2013 14:32, schrieb Alex Williamson:

thanks for the link. Could to have reference you can search.

If I replace the CPU by a Intel Core i5-3550 do you think the IOMMU will work then with the mainboard?

Thanks
Matthias

"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook

Hi,

Am 17.03.2013 15:17, schrieb Matthias Fechner:

for the archive, I replaced the i3 now by an i5-3550 and IOMMU works perfectly.
Thanks again.

Matthias