stable-9 with Xen 4.12 on Dell 7040 causes VT-d errors

Description

When installing build 6563 on a Dell 7040 over Legacy there were repeated errors, see below. The screen did not completely render and installation was impossible. I do not see these errors when installing using UEFI but during the next boot these errors appear and prevent the system from continuing the boot process. I have not seen these issues with an HP Z2 Mini G4.

XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr de0da000, iommu reg = ffff82c00021b000
(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set
(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr de0da000, iommu reg = ffff82c00021b000
(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set
(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr de147000, iommu reg = ffff82c00021b000

Environment

Dell 7040

Validation Steps

None

Assignee

Unassigned

Reporter

turnerr@ainfosec.com

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QA Assignee

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Fix versions

Affects versions

Priority

Blocker
Configure