[for-4.15][PATCH v2 0/5] xen/iommu: Collection of bug fixes for IOMMU teadorwn

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

Hi all,

This series is a collection of bug fixes for the IOMMU teardown code.
All of them are candidate for 4.15 as they can either leak memory or
lead to host crash/host corruption.

This is sent directly on xen-devel because all the issues were either
introduced in 4.15 or happen in the domain creation code.

Cheers,

Julien Grall (5):
  xen/x86: p2m: Don't map the special pages in the IOMMU page-tables
  xen/iommu: Check if the IOMMU was initialized before tearing down
  xen/iommu: iommu_map: Don't crash the domain if it is dying
  xen/iommu: x86: Don't leak the IOMMU page-tables
  xen/iommu: x86: Clear the root page-table before freeing the
    page-tables

 xen/drivers/passthrough/amd/pci_amd_iommu.c | 12 +++++-
 xen/drivers/passthrough/iommu.c             |  9 ++++-
 xen/drivers/passthrough/vtd/iommu.c         | 12 +++++-
 xen/drivers/passthrough/x86/iommu.c         | 42 ++++++++++++++++++++-
 xen/include/asm-x86/p2m.h                   |  4 ++
 xen/include/xen/iommu.h                     |  1 +
 6 files changed, 76 insertions(+), 4 deletions(-)

-- 
2.17.1