[Xen-devel] [PATCH v3 00/10] Check VT-d Device-TLB flush error

[Quan Xu <quan.xu@xxxxxxxxx>]

This patch set is a prereq patch set for Patch:'VT-d Device-TLB flush issue'.

While IOMMU Device-TLB flush timed out, xen calls panic() at present. However 
the existing panic()
is going to be eliminated, so we must propagate the IOMMU Device-TLB flush 
error up to the call trees.

This patch set is also based on the discussion of 'abstract model of IOMMU 
unmaping/mapping failures'

In this v3,
    - best effort flushing when an error.
    - adding __must_check.


Quan Xu (10):
  vt-d: fix the IOMMU flush issue
  IOMMU: handle IOMMU mapping and unmapping failures
  IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping
  vt-d: propagate IOMMU Device-TLB flush error up to IOMMU unmapping.
  vt-d: propagate IOMMU Device-TLB flush error up to IOMMU mapping.
  propagate IOMMU Device-TLB flush error up to iommu_iotlb_flush{,_all}
    (top level ones).
  IOMMU: propagate IOMMU Device-TLB flush error up to
    iommu_iotlb_flush{,_all} (leaf ones).
  vt-d/ept: propagate IOMMU Device-TLB flush error up to EPT update.
  IOMMU: propagate IOMMU Device-TLB flush error up to IOMMU suspending
  vt-d: propagate error up to ME phantom function mapping and unmapping

 xen/arch/arm/p2m.c                            |   5 +-
 xen/arch/x86/acpi/power.c                     |  15 ++-
 xen/arch/x86/mm.c                             |  13 +-
 xen/arch/x86/mm/p2m-ept.c                     |  30 ++++-
 xen/arch/x86/mm/p2m-pt.c                      |  24 +++-
 xen/arch/x86/mm/p2m.c                         |  11 +-
 xen/common/memory.c                           |  14 ++-
 xen/drivers/passthrough/amd/iommu_init.c      |   9 +-
 xen/drivers/passthrough/amd/pci_amd_iommu.c   |   2 +-
 xen/drivers/passthrough/arm/smmu.c            |  12 +-
 xen/drivers/passthrough/iommu.c               |  64 ++++++++--
 xen/drivers/passthrough/vtd/extern.h          |   3 +-
 xen/drivers/passthrough/vtd/iommu.c           | 168 ++++++++++++++++++--------
 xen/drivers/passthrough/vtd/quirks.c          |  28 +++--
 xen/drivers/passthrough/x86/iommu.c           |   5 +-
 xen/include/asm-x86/hvm/svm/amd-iommu-proto.h |   2 +-
 xen/include/asm-x86/iommu.h                   |   3 +-
 xen/include/xen/iommu.h                       |  13 +-
 18 files changed, 313 insertions(+), 108 deletions(-)

-- 
1.9.1


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