On 08/14/2017 11:16 PM, Alex Williamson wrote:
On Mon, Aug 14, 2017 at 9:07 PM, taii...@gmx.com <taii...@gmx.com> wrote:
I am not sure but I think there are no pci-e audio cards that support
IOMMU AFAIK.
False, especially for device assignment, the drivers in the guest and the
guest itself is completely unaware of the IOMMU.
I heard an Asus Xonar (cmedia chipset) PCI-e (all of them are based off
that chip AFAIK) wouldn't work and resulted in IO_PAGE_FAULT dmesg spam
with iommu enabled.
https://bbs.archlinux.org/viewtopic.php?id=168555
I had a similar error - one of my GFX cards broke so I slotted in an old
PCI-e Nvidia 7800gt and when booting dom0 and trying to do modesetting
with IOMMU enabled it would spew io page faults and fail to modeset - I
had to replace it with a newer card...I do not know why that occurred.
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