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[0/4] iommu/x86: fixes/improvements for unity range checks

Message ID 20240201170159.66330-1-roger.pau@citrix.com (mailing list archive)
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Series iommu/x86: fixes/improvements for unity range checks | expand

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Roger Pau Monné Feb. 1, 2024, 5:01 p.m. UTC 
Hello,

Patch 1 is a bugfix for AMD-Vi IVMD range type checks.

Further patches unify the IVMD/RMRR checks into a common function, and
the last patch tightens up the condition to panic when attempting to
boot on a system that has RMRR or IVMD regions over memory that Xen uses
as RAM.

Thanks, Roger.

Roger Pau Monne (4):
  amd-vi: fix IVMD memory type checks
  iommu/x86: introduce a generic IVMD/RMRR range validity helper
  iommu/vt-d: switch to common RMRR checker
  iommu/x86: make unity range checking more strict

 xen/arch/x86/include/asm/iommu.h         |  3 ++
 xen/drivers/passthrough/amd/iommu_acpi.c | 33 ++---------------
 xen/drivers/passthrough/vtd/dmar.c       | 14 ++------
 xen/drivers/passthrough/x86/iommu.c      | 46 ++++++++++++++++++++++++
 4 files changed, 55 insertions(+), 41 deletions(-)