ThinkPad X201 with VT-d IOMMU and VMX now working

[Kuba]

Hello,

After tracking down some issues with 3.1-rc3 and previous releases, I am now successfully running 3.1-RC3.

The following features are supported:

- Intel VT-x / HVM

- Intel VT-d / Directed I/O

The following features break HVM:

- Intel TXT

So there are 2 possibilities:

1. Use VT-d + Intel TXT, but unable to use HVM.

2. Use VT-d + VT-x without TXT support.

In order to use VT-d, which in my eyes is essential to using Qubes, you have to edit /etc/default/grub on the Dom0

and append GRUB_CMDLINUX_XEN_DEFAULT to contain iommu=no-igfx - Afterwards it is necessary to run:

grub2-mkconfig > /boot/grub2/grub.cfg

After that, reboot, hit F1 to enter the BIOS, enable Hardware Virtualization and VT-d - if you wish to use TXT, please

note that HVM support will most likely not work.

You can check this by:

xl dmesg|grep VMX

You should see "VMX Enabled" if your VM-x works.

Please report success and fails here.

--

Hardware Model: 36806B8

CPU: Intel i5 M560 2.67 GHz

BIOS: 6QET70WW

[jazzki...@gmail.com]

You have no idea how useful this thread was. I'm new to Qubes and Xen and simple things like "xl dmesg" are not freely disseminated.

Thanks!

[james....@gmail.com]

> Hardware Model: 36806B8
> CPU: Intel i5 M560 2.67 GHz
> BIOS: 6QET70WW

I've got an X201, but I can't get the graphics to work to install Qubes OS. Any ideas?