From: Leif Lindholm <leif.lindholm@linaro.org>
To: Kees Cook <keescook@chromium.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Oleg Nesterov <oleg@redhat.com>,
paulus@samba.org, "H. Peter Anvin" <hpa@zytor.com>,
Guan Xuetao <gxt@mprc.pku.edu.cn>,
linux-s390@vger.kernel.org,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
"x86@kernel.org" <x86@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
dave.long@linaro.org, eiko.carstens@de.ibm.com,
Arnd Bergmann <arnd@arndb.de>,
Chris Metcalf <cmetcalf@tilera.com>,
Thomas Gleixner <tglx@linutronix.de>,
Arjan van de Ven <arjan@linux.intel.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Greg KH <gregkh@linuxfoundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
linux390@de.ibm.com, Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH] make CONFIG_STRICT_DEVMEM a core non-debug feature
Date: Tue, 4 Nov 2014 20:18:59 +0000 [thread overview]
Message-ID: <20141104201859.GZ22224@bivouac.eciton.net> (raw)
In-Reply-To: <CAGXu5jJnaAFMUBR50TgapRzRcvKS0j=XO7u9z6fdNouwMb=_sQ@mail.gmail.com>
On Tue, Nov 04, 2014 at 12:02:32PM -0800, Kees Cook wrote:
> > I considered doing that, but didn't want to risk listing too many
> > details of one architecture, and too few of others.
>
> Well, the others only say "memory mapped peripherals", so that's what
> I was suggesting adding the x86 language: it was the most detailed
> about what that would really mean to the end-user.
The problem is that this currently isn't strictly speaking true for
some architectures (at least not arm*). Without a standardised memory
map, we are exposing mapping anything not system RAM.
(Patches related to that will follow later this month.)
/
Leif
prev parent reply other threads:[~2014-11-04 20:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-04 17:23 [RFC PATCH] make CONFIG_STRICT_DEVMEM a core non-debug feature Leif Lindholm
2014-11-04 18:43 ` Kees Cook
2014-11-04 19:59 ` Leif Lindholm
2014-11-04 20:02 ` Kees Cook
2014-11-04 20:18 ` Leif Lindholm [this message]
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