From: Julien Grall <julien@xen.org>
To: xen-devel@lists.xenproject.org
Cc: hongyxia@amazon.co.uk, iwj@xenproject.org,
Julien Grall <jgrall@amazon.com>, Jan Beulich <jbeulich@suse.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Kevin Tian <kevin.tian@intel.com>, Paul Durrant <paul@xen.org>
Subject: [for-4.15][PATCH v3 0/3] xen/iommu: Collection of bug fixes for IOMMU teadorwn
Date: Wed, 17 Feb 2021 14:24:55 +0000 [thread overview]
Message-ID: <20210217142458.3769-1-julien@xen.org> (raw)
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.
Major changes since v2:
- patch #1 "xen/x86: p2m: Don't map the special pages in the IOMMU
page-tables" has been removed. This requires Jan's patch [2] to
fully mitigate memory leaks.
Cheers,
[1] https://lore.kernel.org/xen-devel/1b6a411b-84e7-bfb1-647e-511a13df838c@suse.com
Julien Grall (3):
xen/iommu: x86: Clear the root page-table before freeing the
page-tables
xen/x86: iommu: Ignore IOMMU mapping requests when a domain is dying
xen/iommu: x86: Harden the IOMMU page-table allocator
xen/drivers/passthrough/amd/iommu_map.c | 13 ++++++
xen/drivers/passthrough/amd/pci_amd_iommu.c | 12 +++++-
xen/drivers/passthrough/vtd/iommu.c | 25 +++++++++++-
xen/drivers/passthrough/x86/iommu.c | 45 ++++++++++++++++++++-
xen/include/xen/iommu.h | 1 +
5 files changed, 93 insertions(+), 3 deletions(-)
--
2.17.1
next reply other threads:[~2021-02-17 14:25 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-17 14:24 Julien Grall [this message]
2021-02-17 14:24 ` [for-4.15][PATCH v3 1/3] xen/iommu: x86: Clear the root page-table before freeing the page-tables Julien Grall
2021-02-17 14:54 ` Jan Beulich
2021-02-17 15:00 ` Julien Grall
2021-02-17 15:17 ` Jan Beulich
2021-02-17 16:48 ` Julien Grall
2021-02-17 14:24 ` [for-4.15][PATCH v3 2/3] xen/x86: iommu: Ignore IOMMU mapping requests when a domain is dying Julien Grall
2021-02-17 15:01 ` Jan Beulich
2021-02-17 16:07 ` Julien Grall
2021-02-18 13:05 ` Jan Beulich
2021-02-18 13:25 ` Julien Grall
2021-02-19 8:49 ` Jan Beulich
2021-02-19 9:24 ` Julien Grall
2021-02-18 14:00 ` Paul Durrant
2021-02-19 8:56 ` Jan Beulich
2021-02-17 14:24 ` [for-4.15][PATCH v3 3/3] xen/iommu: x86: Harden the IOMMU page-table allocator Julien Grall
2021-02-17 15:13 ` Jan Beulich
2021-02-17 16:29 ` Julien Grall
2021-02-18 13:10 ` Jan Beulich
2021-02-18 13:19 ` Julien Grall
2021-02-18 17:04 ` Jan Beulich
2021-02-18 17:41 ` Julien Grall
2021-02-19 8:46 ` Jan Beulich
2021-02-19 8:57 ` Julien Grall
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