linux-kernel - [PATCH 0/3] iommu/amd: Improve IOMMU Event Log Interrupt Handling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1364428215-2513-1-git-send-email-suravee.suthikulpanit@amd.com>
Date:	Wed, 27 Mar 2013 18:50:15 -0500
From:	<suravee.suthikulpanit@....com>
To:	<iommu@...ts.linux-foundation.org>, <joro@...tes.org>
CC:	<linux-kernel@...r.kernel.org>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>
Subject: [PATCH 0/3] iommu/amd: Improve IOMMU Event Log Interrupt Handling

From: Suravee Suthikulpanit <suravee.suthikulpanit@....com>

Typically, IOMMU events are logged into the event log.  Current driver processes each event
in the log when the hardware generate an MSI interrupt. It reports event type, device ID, 
raw status flag, and etc. in the kernel log (dmesg)

1. The first patch improve event reporting by using the type of event and status flag to 
decode event information and provide more detail in the report. This should also be useful 
when debugging IOMMU issues.

2. The second patch provide interface for testing the event decoding logic using the debugfs.

3. Fix IOMMU event log interrupt handling which currently does not re-enable the event interrupt.

 drivers/iommu/Kconfig            |    9 ++
 drivers/iommu/Makefile           |    1 +
 drivers/iommu/amd_iommu.c        |  167 ++++++++++++++++++++++++++++++++------
 drivers/iommu/amd_iommu_inject.c |   99 ++++++++++++++++++++++
 drivers/iommu/amd_iommu_proto.h  |    9 ++
 drivers/iommu/amd_iommu_types.h  |    1 +
 6 files changed, 259 insertions(+), 27 deletions(-)
 create mode 100644 drivers/iommu/amd_iommu_inject.c

-- 
1.7.10.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/