Cannot start Dom0 fake domain - Unable to reset PCI device - unable to add pci devices

[Hugo Costa]

Hey,

Thinkpad Yoga 2014, Virtualization on, Legacy boot (aka no UEFI), worked perfectly on Qubes 3.2.

Did the backup and decided to install 4.0 today. I've reinstalled it 2 times already, and I always get an error related to sys-firewall (similar to this - https://groups.google.com/forum/#!topic/qubes-users/hZejgU5E5zA). Disregarding the error, I enter the desktop and no vms are on. I try to boot literally any vm and I have an error related to libxenlight (failed to create new domain - see log file). In the log file, the errors are "PCI device cannot be assigned - no IOMMU?" repeated 3 times, "unable to add pci devices".

What can I try? Anyone faced this problem?

[Hugo Costa]

I've investigated a bit further. The error says that it's impossible for the system to assign the PCI 0000:04:00.0 to sys-net. This is the network card, no other vm has this assigned to it. The perms on the qube's config assign it to sys-net, what can be wrong with it?

[Hugo Costa]

Tried using PV mode. It fixed it, but obviously carries it's concerns. Is there a safer option? Would the tutorial on pci passthrough be a shot worth a try? https://www.qubes-os.org/doc/assigning-devices/#pci-passthrough-issues

[Hugo Costa]

For some reason your answer went to Spam and I couldn't see it on the website. Yes, Virtualization is enabled, but I believe it's an archaic version of it, since I had a warning on the setup on that. But again, I ran Qubes 3.2 perfectly, with two windows VMs that were HVMs, so hardware virtualization works? 

Yeah, I'm also having problems with the USB (none detected, only the touchscreen is detected and doesn't work, I'll have to figure out a way to connect it to dom0), so I really have to try that. 

On 1 June 2018 at 19:37, awokd <aw...@danwin1210.me> wrote:

On Fri, June 1, 2018 4:52 pm, Hugo Costa wrote:
> On Friday, 1 June 2018 17:45:59 UTC+1, Hugo Costa  wrote:
>
>> On Friday, 1 June 2018 17:38:23 UTC+1, Hugo Costa  wrote:

>>> errors are "PCI device cannot be assigned - no IOMMU?" repeated 3
>>> times, "unable to add pci devices".

Is VT-d available and enabled for your system?

> Tried using PV mode. It fixed it, but obviously carries it's concerns. Is
> there a safer option? Would the tutorial on pci passthrough be a shot
> worth a try?
> https://www.qubes-os.org/doc/assigning-devices/#pci-passthrough-issues

I'd try those options before PV mode.

--

Hugo Costa