[vfio-users] VFIO not claiming device

[thibaut noah]

For further explanation see this :
https://www.freedesktop.org/software/systemd/man/systemd-modules-load.service.html#rd.modules-load=

2016-04-23 0:24 GMT+02:00 thibaut noah <thibaut.noah at gmail.com>:

> My grub line :
> "GRUB_CMDLINE_LINUX_DEFAULT="rd.modules-load=vfio-pci quiet
> intel_iommu=on,igfx_off pcie_acs_override=downstream" (igfx_off is because
> i cannot boot otherwise, got some graphic glitch at boot, if you don't have
> it feel, free to remove itr"
>
> Don't forget to update grub afterwards. It is weird though,
> rd.modules-load is on others tutorials but not on arch wiki.
> I believe that was the issue i had when first trying to get vfio to grab
> the device on antergos first time i wanted to do this.
>
> 2016-04-23 0:10 GMT+02:00 Alex Williamson <alex.l.williamson at gmail.com>:
>
>> On Fri, Apr 22, 2016 at 4:06 PM, Brett Peckinpaugh <erylflynn at gmail.com>
>> wrote:
>>
>>> To start I am now running Arch with the VFIO kernel, I did not compile
>>> with the i915, my machine failed to boot with that last time.  Currently I
>>> can't seem to get VFIO to claim the devices I want to pass-through.  You
>>> can see kernel driver is still nvidia.  I added my configs below.  I even
>>> tried a script.  Every time I modify mkinitcpio.conf I regenerate my
>>> intramfd with mkinitcpio -p linux-vfio
>>>
>>> What am I missing?
>>>
>>> lspci -nnk -d 10de:1087
>>>
>>> 02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF110
>>> [GeForce GTX 560 Ti 448 Cores] [10de:1087] (rev a1)
>>>         Subsystem: NVIDIA Corporation Device [10de:0000]
>>>         Kernel driver in use: nvidia
>>>         Kernel modules: nouveau, nvidia_drm, nvidia
>>>
>>>
>>>
>>> /etc/mkinitcpio.conf
>>>
>>> MODULES="vfio vfio_iommu_type1 vfio_pci vfio_virqfd"
>>>
>>> kernel boot options.
>>>
>>> intel_iommu=on pcie_acs_override=downstream rd.driver.pre=vfio-pci
>>>
>>>
>> You're applying Fedora instructions to Arch, rd.driver.pre apparently
>> doesn't do anything on Arch.  Look in the archive for the past couple
>> weeks, I believe there are some working instructions there.
>>
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>>
>
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