linux-kernel - RE: [PATCH 1/4] iommu: Add iommu_device_group callback and 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-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <9F6FE96B71CF29479FF1CDC8046E15032808E0@039-SN1MPN1-003.039d.mgd.msft.net>
Date:	Thu, 1 Dec 2011 14:02:06 +0000
From:	Yoder Stuart-B08248 <B08248@...escale.com>
To:	Chris Wright <chrisw@...hat.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	David Gibson <dwg@....ibm.com>,
	Alex Williamson <alex.williamson@...hat.com>,
	"joerg.roedel@....com" <joerg.roedel@....com>,
	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"agraf@...e.de" <agraf@...e.de>,
	Wood Scott-B07421 <B07421@...escale.com>
Subject: RE: [PATCH 1/4] iommu: Add iommu_device_group callback and
 iommu_group sysfs entry


> > That way the domain information is available generically (can be match
> > with pci_domain_nr() for example), and sysfs can then be layed out as
> >
> > /sys/bus/pci/groups/<domain>/<id>
> >
> > Which is nicer than having enormous id's
> 
> Seems fine to me (although I missed /sys/bus/pci/groups/ introduction), except that I think
> the freescale folks aren't interested in PCI which is one reason why the thing is just an
> opaque id.

We are interested in PCI, but non-PCI as well.  All DMA devices,
have a globally unique "logical I/O device number" (LIODN) which
will map to a group # for us.

Stuart

--
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/