linux-kernel - [PATCH 0/2] Introduce iommu

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>] [thread-next>] [day] [month] [year] [list]

Message-ID: <1308843083-10442-1-git-send-email-joerg.roedel@amd.com>
Date:	Thu, 23 Jun 2011 17:31:21 +0200
From:	Joerg Roedel <joerg.roedel@....com>
To:	<iommu@...ts.linux-foundation.org>
CC:	<linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	David Brown <davidb@...eaurora.org>, <kvm@...r.kernel.org>,
	Avi Kivity <avi@...hat.com>,
	Alex Williamson <alex.williamson@...hat.com>
Subject: [PATCH 0/2] Introduce iommu_commit() function

Hi,

this patch-set introduces a new function into the iommu-api:

	iommu_commit(domain);

It needs to be called whenever a some code changed a domain (either by
attaching/detaching devices or by mapping/unmapping pages in
the domain).

IOMMU drivers can implement the new commit-callback to coalesce any
cache flushing on the CPU and in the IOMMU hardware which is necessary
after changes have been made to a domain.

David, I think especially VT-d can benefit from such a callback. I will
implement support for it in the AMD IOMMU driver and post a patch-set
soon.

Any comments, thoughts?

Thanks,

	Joerg

--
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/