From: Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
ARM kernel mailing list
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org"
<rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>
Subject: Re: Multi-platform, and secure-only ARM errata workarounds
Date: Tue, 26 Feb 2013 10:31:14 +0000 [thread overview]
Message-ID: <20130226103114.GA16875@arm.com> (raw)
In-Reply-To: <201302261023.26939.arnd-r2nGTMty4D4@public.gmane.org>
On Tue, Feb 26, 2013 at 10:23:26AM +0000, Arnd Bergmann wrote:
> On Monday 25 February 2013, Stephen Warren wrote:
> > Is there any other alternative I'm not seeing? Having the kernel
> > suddenly become incompatible with any currently extant bootloader when I
> > enable CONFIG_MULTIPLATFORM doesn't seem like a great idea.
>
> Could we make those errata be run-time enabled only when not booting
> in secure mode?
There is no easy way to detect whether Linux booted in secure mode,
unless we add some information in the DT. But I wouldn't add S vs NS
information, rather which errata need to be enabled by the kernel.
--
Catalin
next prev parent reply other threads:[~2013-02-26 10:31 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-25 23:47 Multi-platform, and secure-only ARM errata workarounds Stephen Warren
2013-02-26 9:36 ` Marc Dietrich
[not found] ` <4928288.ie8EUukfVD-D3pzGp0ZKuDWZbiwp4sFPyrtisivX6KghOMvlBiLbJSELgA04lAiVw@public.gmane.org>
2013-02-26 16:39 ` Stephen Warren
[not found] ` <512CE533.6020005-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-02-26 22:31 ` Nicolas Pitre
2013-02-27 9:03 ` Marc Dietrich
[not found] ` <22709540.96uJddbx1U-D3pzGp0ZKuDWZbiwp4sFPyrtisivX6KghOMvlBiLbJSELgA04lAiVw@public.gmane.org>
2013-02-27 14:00 ` Rob Herring
2013-02-27 17:42 ` Stephen Warren
2013-02-28 13:58 ` Marc Dietrich
[not found] ` <512BF81A.3080700-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-02-26 10:23 ` Arnd Bergmann
[not found] ` <201302261023.26939.arnd-r2nGTMty4D4@public.gmane.org>
2013-02-26 10:31 ` Catalin Marinas [this message]
[not found] ` <20130226103114.GA16875-5wv7dgnIgG8@public.gmane.org>
2013-02-26 10:35 ` Catalin Marinas
[not found] ` <20130226103503.GB16875-5wv7dgnIgG8@public.gmane.org>
2013-02-26 10:48 ` Arnd Bergmann
[not found] ` <201302261048.06644.arnd-r2nGTMty4D4@public.gmane.org>
2013-02-26 11:11 ` Catalin Marinas
2013-02-26 11:35 ` Russell King - ARM Linux
[not found] ` <20130226113538.GS17833-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-02-26 14:07 ` Rob Herring
2013-02-26 18:01 ` Stephen Warren
[not found] ` <512CF87A.4090404-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-02-26 18:11 ` Russell King - ARM Linux
[not found] ` <20130226181114.GU17833-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-02-26 18:30 ` Stephen Warren
[not found] ` <512CFF30.9080300-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-02-26 18:49 ` Russell King - ARM Linux
[not found] ` <20130226184942.GV17833-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2013-02-27 6:07 ` Santosh Shilimkar
2013-03-01 17:37 ` Stephen Warren
[not found] ` <5130E757.6090500-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-03-01 18:05 ` Russell King - ARM Linux
2013-03-04 6:34 ` Peter De Schrijver
[not found] ` <20130304063436.GB27241-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org>
2013-03-04 9:16 ` Peter De Schrijver
[not found] ` <20130304091600.GC27241-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org>
2013-03-04 17:08 ` Stephen Warren
[not found] ` <5134D50B.8060001-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-03-05 7:40 ` Peter De Schrijver
[not found] ` <20130305074047.GH27241-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org>
2013-03-05 17:00 ` Stephen Warren
[not found] ` <513624AA.4090207-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-03-06 8:14 ` Peter De Schrijver
[not found] ` <20130306081401.GN27241-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org>
2013-03-06 16:18 ` Stephen Warren
2013-03-10 17:25 ` Santosh Shilimkar
[not found] ` <513CC21E.7080901-l0cyMroinI0@public.gmane.org>
2013-03-10 18:47 ` Olof Johansson
[not found] ` <CAOesGMgYL19+u-bLp080iasct5xtC=qfNCoz=SY7bbVgF=7JQg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-03-11 16:59 ` Stephen Warren
2013-03-11 18:54 ` Jason Gunthorpe
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