| 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
| ||
|
Message-Id: <1249454696.9324.325.camel@macbook.infradead.org> Date: Wed, 05 Aug 2009 07:44:56 +0100 From: David Woodhouse <dwmw2@...radead.org> To: Jeremy Fitzhardinge <jeremy@...p.org> Cc: Dave Airlie <airlied@...il.com>, Keir Fraser <kier.fraser@...citrix.com>, xen-devel@...ts.xensource.com, Joerg Roedel <joerg.roedel@....com>, iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, Zhenyu Wang <zhenyu.z.wang@...el.com> Subject: Re: [Xen-devel] Re: [RFC] Make AGP work with IOMMU On Tue, 2009-08-04 at 16:52 -0700, Jeremy Fitzhardinge wrote: > And just when I have patches to use them for their original purpose... > > Looking back over the thread, are you saying that most users are already > using the DMA API correctly for AGP accesses? If that's true then we > should be just fine. No, not 'most users'. But perhaps we should. All we've done so far is make intel-agp use the DMA API correctly. And that's conditional on CONFIG_DMAR. But we could make it unconditional, and make the other drivers do it too. The code is all fairly generic. Without an IOMMU, the overhead would be fairly minimal. -- David Woodhouse Open Source Technology Centre David.Woodhouse@...el.com Intel Corporation -- 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/
Powered by blists - more mailing lists