From: Julien Grall <jgrall@amazon.com>

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

Julien Grall writes ("[for-4.15][PATCH v2 0/5] xen/iommu: Collection of bug fixes for IOMMU teadorwn"):
> From: Julien Grall <jgrall@amazon.com>
...
> 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.

I think by current freeze rules this does not need a release-ack but
for the avoidance of doubt

Release-Acked-by: Ian Jackson <iwj@xenproject.org>

assuming it's commited by the end of the week.

Ian.

Hi Ian,

On 09/02/2021 16:47, Ian Jackson wrote:
> Julien Grall writes ("[for-4.15][PATCH v2 0/5] xen/iommu: Collection of bug fixes for IOMMU teadorwn"):
>> From: Julien Grall <jgrall@amazon.com>
> ...
>> 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.
> 
> I think by current freeze rules this does not need a release-ack but
> for the avoidance of doubt
> 
> Release-Acked-by: Ian Jackson <iwj@xenproject.org>

Thanks!

> 
> assuming it's commited by the end of the week.

I saw you extended the freeze rules by a week. So I will assume that I 
have until end of this week (19th February) to commit it.

Please let me know if I misunderstood the extension.

Cheers,

-- 
Julien Grall