[vfio-users] Recommended GPU

[Okky Hendriansyah]

On Thu, May 12, 2016 at 7:24 PM, Dik .... <dik23 at hotmail.com> wrote:

> I currently have a R9 290x (Hawaii) "working" but it has issues related
> to this bug covered by this patch: https://goo.gl/DI9cvH
>
>
> The patch was implemented in QEMU 2.4 and I'm running 2.5. While this
> patch does seem to help I still have problems. After I shutdown the VM I'm
> often unable to suspend or shutdown the host. Amongst other symptoms lspci
> and lshw both hang giving no output. I had none of these issues with an old
> 7950 I had installed before the 290x.
>
>
> I've come to the conclusion that the 290x is worth more to me on eBay than
> in my machine. Question is would I be better off with nVidia and if so does
> anyone have any feedback with regard to GTX 970 and 980 cards?
>
>
> Thanks in advance
>

Hi Dik,

I have only  used R9 270X when I was trying to passhtrough it on Xen and it
worked flawlessly. But then I was intrigued to NVIDIA's rich feature set,
so I gambled myself trade my R9 270X with GTX 770.

Xen could not pass the GPU at the time, so I tried for the first time
KVM/VFIO approach. It went success using VGA/legacy mode but then UEFI/OVMF
way emerged. I changed my QEMU script and NVIDIA still proved to be quite
stable to be passed through to guest VM, although with some workarounds
like hiding KVM CPUID and Hyper-V custom vendor ID needs to be addressed to
tame the recent NVIDIA driver. Kudos to Alex Williamson for this [1]. Since
then, I always upgrade myself with NVIDIA.

These cards have been personally tested by me under KVM/VFIO and all of
them supports UEFI thus OVMF approach:
1.) NVIDIA GeForce GT 730 (Inno3D)
2.) NVIDIA GeForce GTX 770 (Gigabyte)
3.) NVIDIA GeForce GTX 780 (ASUS)
4.) NVIDIA GeForce GTX 980 (Gigabyte)
5.) NVIDIA GeForce GTX 980 Ti (MSI)

[1] https://lists.gnu.org/archive/html/qemu-devel/2015-10/msg00662.html

Best regards,
Okky Hendriansyah
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