linux-kernel - Re: IOMMU and graphics cards

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: <1241691721.3531.73.camel@macbook.infradead.org>
Date:	Thu, 07 May 2009 11:22:01 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	mingo@...hat.com, airlied@...ux.ie
Subject: Re: IOMMU and graphics cards

On Thu, 2009-05-07 at 12:01 +0200, Joerg Roedel wrote:
> > Looks like the DRM code uses the DMA API.
> 
> The proprietary drivers make problems so far. For the ATI one I am in
> contact with the developers to try to fix it. But I can't do anything
> about the other proprietary driver I am aware of :-(

I see no harm in "breaking" code which was already broken. If that's the
only reason we're enabling the graphics workaround, let's turn it off.

-- 
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/