From: "Terje Bergström" <tbergstrom@nvidia.com>
To: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Lucas Stach <dev@lynxeye.de>, Dave Airlie <airlied@gmail.com>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Arto Merilainen <amerilainen@nvidia.com>
Subject: Re: [RFC v2 8/8] drm: tegra: Add gr2d device
Date: Tue, 27 Nov 2012 13:31:15 +0200 [thread overview]
Message-ID: <50B4A483.8030305@nvidia.com> (raw)
In-Reply-To: <20121127103739.GA3329@avionic-0098.adnet.avionic-design.de>
On 27.11.2012 12:37, Thierry Reding wrote:
> But in that case it should be made mandatory at first until proper IOMMU
> support is enabled on Tegra30. Then it can be checked at driver probe
> time whether or not to enable the extra checks. That way we don't need a
> special Kconfig option and we still get all the security that we need,
> right?
I guess it depends on the level of security.
If we want to only protect kernel and user space memory, this would be
sufficient and no firewall is needed if IOMMU is turned on.
If we want to protect 2D buffers from each other, this is not sufficient.
Terje
next prev parent reply other threads:[~2012-11-27 11:27 UTC|newest]
Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-26 13:19 [RFC v2 0/8] Support for Tegra 2D hardware Terje Bergstrom
2012-11-26 13:19 ` [RFC v2 1/8] video: tegra: Add nvhost driver Terje Bergstrom
2012-11-27 10:52 ` Sivaram Nair
2012-11-28 21:23 ` Thierry Reding
2012-11-29 10:21 ` Terje Bergström
2012-11-29 11:47 ` Thierry Reding
2012-11-29 18:38 ` Stephen Warren
2012-11-30 6:52 ` Thierry Reding
2012-11-30 8:50 ` Lucas Stach
2012-12-01 11:44 ` Terje Bergström
2012-12-01 15:10 ` Thierry Reding
2012-12-01 16:55 ` Terje Bergström
2012-12-01 17:34 ` Lucas Stach
2012-12-01 19:29 ` Terje Bergström
2012-12-01 21:42 ` Dave Airlie
2012-12-01 22:39 ` Thierry Reding
2012-12-02 11:24 ` Terje Bergström
2012-12-02 20:55 ` Thierry Reding
2012-12-03 6:26 ` Terje Bergström
2012-11-30 8:56 ` Terje Bergström
2012-11-30 10:38 ` Thierry Reding
2012-12-01 11:31 ` Terje Bergström
2012-12-01 13:42 ` Daniel Vetter
2012-12-01 16:22 ` Terje Bergström
2012-12-01 14:58 ` Thierry Reding
2012-12-01 17:13 ` Terje Bergström
2012-12-03 19:23 ` Stephen Warren
2012-12-04 21:31 ` Thierry Reding
2012-12-03 19:20 ` Stephen Warren
2012-12-03 21:03 ` Thierry Reding
2012-12-04 2:08 ` Mark Zhang
2012-12-04 2:11 ` Mark Zhang
2012-12-04 6:17 ` Terje Bergström
2012-11-29 18:34 ` Stephen Warren
2012-11-30 6:54 ` Terje Bergström
2012-11-30 6:53 ` Thierry Reding
2012-11-29 9:10 ` [RFC,v2,1/8] " Mark Zhang
2012-12-10 10:28 ` Terje Bergström
2012-11-26 13:19 ` [RFC v2 2/8] video: tegra: Add syncpoint wait and interrupts Terje Bergstrom
2012-11-27 11:02 ` Sivaram Nair
2012-11-29 8:44 ` Thierry Reding
2012-11-29 10:39 ` Terje Bergström
2012-11-30 7:22 ` Thierry Reding
2012-11-30 7:41 ` Terje Bergström
2012-11-29 18:41 ` Stephen Warren
2012-11-30 7:23 ` Thierry Reding
2012-11-26 13:19 ` [RFC v2 3/8] video: tegra: host: Add channel and client support Terje Bergstrom
2012-11-29 10:01 ` [RFC,v2,3/8] " Mark Zhang
2012-11-29 10:46 ` Terje Bergström
2012-11-30 6:13 ` Mark Zhang
2012-11-29 10:04 ` [RFC v2 3/8] " Thierry Reding
2012-11-29 11:00 ` Terje Bergström
2012-11-30 7:46 ` Thierry Reding
2012-11-26 13:19 ` [RFC v2 4/8] video: tegra: Add debug support Terje Bergstrom
2012-11-26 13:19 ` [RFC v2 5/8] ARM: tegra: Add auxiliary data for nvhost Terje Bergstrom
2012-11-26 23:39 ` Stephen Warren
2012-11-27 6:33 ` Terje Bergström
2012-11-27 17:17 ` Stephen Warren
2012-11-26 13:19 ` [RFC v2 6/8] gpu: drm: tegra: Remove redundant host1x Terje Bergstrom
2012-12-05 8:33 ` Thierry Reding
2012-12-05 10:10 ` Terje Bergström
2012-12-05 11:13 ` Thierry Reding
2012-12-05 11:47 ` Terje Bergström
2012-12-05 12:02 ` Lucas Stach
2012-12-05 12:03 ` Daniel Vetter
2012-12-05 12:08 ` Daniel Vetter
2012-12-05 12:22 ` Thierry Reding
2012-12-05 12:31 ` Daniel Vetter
2012-12-05 13:28 ` Thierry Reding
2012-12-05 16:34 ` Daniel Vetter
2012-12-05 20:44 ` Thierry Reding
2012-12-05 12:04 ` Thierry Reding
2012-12-05 15:43 ` Terje Bergström
2012-12-10 11:42 ` Terje Bergström
2012-12-12 16:08 ` Thierry Reding
2012-12-12 16:56 ` Terje Bergström
2012-12-13 8:48 ` Terje Bergström
2012-12-13 8:57 ` Thierry Reding
2012-12-13 17:58 ` Stephen Warren
2012-12-13 20:32 ` Thierry Reding
2012-12-14 6:09 ` Terje Bergström
2012-12-14 16:21 ` Stephen Warren
2012-12-14 19:59 ` Terje Bergström
2012-12-16 12:16 ` Thierry Reding
2012-12-16 16:37 ` Terje Bergström
2012-12-17 20:55 ` Stephen Warren
2012-12-18 6:37 ` Terje Bergström
2012-12-20 9:17 ` Terje Bergström
2012-12-20 17:14 ` Stephen Warren
2012-12-20 17:46 ` Terje Bergström
2012-12-20 17:55 ` Stephen Warren
2012-12-20 18:01 ` Terje Bergström
2012-12-20 20:30 ` Thierry Reding
2012-12-20 21:34 ` Terje Bergström
2012-12-20 21:50 ` Thierry Reding
2012-12-20 22:29 ` Stephen Warren
2012-12-20 22:28 ` Stephen Warren
2012-12-21 6:31 ` Terje Bergström
2012-12-21 8:57 ` Arto Merilainen
2012-12-21 21:19 ` Stephen Warren
2013-01-02 5:41 ` Terje Bergström
2013-01-04 10:09 ` Terje Bergström
2013-01-04 20:25 ` Stephen Warren
2013-01-07 8:20 ` Terje Bergström
2013-01-07 17:07 ` Stephen Warren
2013-01-15 11:30 ` Thierry Reding
2013-01-15 11:41 ` Terje Bergström
2012-11-26 13:19 ` [RFC v2 7/8] gpu: drm: tegra: Prime support Terje Bergstrom
2012-11-26 13:19 ` [RFC v2 8/8] drm: tegra: Add gr2d device Terje Bergstrom
2012-11-26 21:59 ` Rob Clark
2012-11-26 22:15 ` Dave Airlie
2012-11-27 6:52 ` Terje Bergström
2012-11-27 7:33 ` Dave Airlie
2012-11-27 8:16 ` Terje Bergström
2012-11-27 8:32 ` Dave Airlie
2012-11-27 8:45 ` Terje Bergström
2012-11-27 10:22 ` Lucas Stach
2012-11-27 10:37 ` Thierry Reding
2012-11-27 11:31 ` Terje Bergström [this message]
2012-11-27 11:47 ` Lucas Stach
2012-11-27 12:59 ` Terje Bergström
2012-11-27 23:00 ` Dave Airlie
2012-11-28 13:17 ` Terje Bergström
2012-11-28 13:33 ` Lucas Stach
2012-11-28 13:57 ` Terje Bergström
2012-11-28 14:06 ` Lucas Stach
2012-11-28 14:45 ` Terje Bergström
2012-11-28 15:13 ` Lucas Stach
2012-11-28 16:23 ` Terje Bergström
2012-11-28 18:46 ` Lucas Stach
2012-11-29 8:17 ` Terje Bergström
2012-11-29 9:09 ` Lucas Stach
2012-11-29 12:14 ` Thierry Reding
2012-11-30 7:44 ` Terje Bergström
2012-11-30 7:53 ` Lucas Stach
2012-11-29 13:36 ` Terje Bergström
2012-11-28 16:24 ` Stephen Warren
2012-11-28 20:53 ` Thomas Hellstrom
2012-12-03 9:30 ` Mark Zhang
2012-12-03 9:40 ` Daniel Vetter
2012-12-04 1:49 ` Mark Zhang
2012-11-29 7:37 ` [RFC,v2,8/8] " Mark Zhang
2012-12-01 14:45 ` [RFC v2 0/8] Support for Tegra 2D hardware Thierry Reding
2012-12-01 17:08 ` Terje Bergström
2012-12-01 19:29 ` Thierry Reding
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