[vfio-users] What is the best host os for vfio vm gaming?

[thibaut noah]

I personnaly needed the acs patch and add to make myself a custom kernel on
fedora (hba card for zfs raid).
Arch is easier for this since one guy is maitaining a patched kernel, you
just have to download it.
On Sun, 28 Feb 2016 at 10:14, Okky Hendriansyah <okky at nostratech.com> wrote:

> On February 28, 2016 at 15:42:05, stein van broekhoven (
> stein at aapjeisbaas.nl) wrote:
>
>> ...
>>
>
>> If anybody would attempt a build like this I would recommend Manjaro with
>> plasma 5.5 (KDE)
>> And follow this guide:
>> https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF
>> Only difference is:
>> # mkinitcpio -p linux
>> # mkinitcpio -p linux41
>>
>> You do NOT need the kernel patch from:
>> https://aur.archlinux.org/packages/linux-vfio/
>>
>>
>>
>> Sent from my iPhone
>>
>
> Hi Stein,
>
> Please correct me if I am wrong, but I think the question of whether one
> needs the kernel patches that linux-vfio incorporates or not, really
> depends on one's setup and hardware.
>
> The Intel HD arbitration patch is still needed if legacy VGA assignment
> (with Seabios) is still being used on Intel platforms with integrated Intel
> HD Graphics.
>
> The PCIe ACS override patch is still needed if the platform does not
> support ACS and using other available PCIe slots for the host. Although
> I've seen in this list that sometimes not all ACS cases can be solved by
> this patch.
>
> For instance, my previous platform was Haswell i7-4770 with a GTX 980, a
> USB 3.0 card, and a NIC card passed to Windows 10 guest (OVMF) while having
> a RAID card in the last PCIe slot for my Arch Linux host ZFS disk array. In
> my case, I did not need the Intel HD arbitration patch since I use the
> legacy-free approach with OVMF. But I still need the PCIe ACS override
> patch since the default IOMMU grouping did not separate my RAID card with
> other PCIe devices.
>
> Other example on one of the members here, had similar platform as mine.
> But he only has a GPU on his slots, thus he did not need the PCIe ACS
> override patch.
>
> Best regards,
> Okky Hendriansyah
>
>
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