[Xen-users] VT-D Errors in xl dmesg

[Christoph <mangel@xxxxxx>]

Hi

what does the errors in xl dmesg mean:

(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:01:00.0] fault addr
14484b000, iommu reg = ffff82c00021f000
(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set
(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:01:00.0] fault addr
184c72000, iommu reg = ffff82c00021f000
(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set
(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:01:00.0] fault addr
184c72000, iommu reg = ffff82c00021f000
(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set

and how can/should I fix it?
The device at 0000:01:00.0 is a nvidia rtx2070 graphics card what I use
in a windows 10 domU to play some games... I see no problem in this
domU.

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Greetz

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