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Date: Tue, 4 Nov 2014 20:18:59 +0000 From: Leif Lindholm <leif.lindholm@...aro.org> To: Kees Cook <keescook@...omium.org> Cc: LKML <linux-kernel@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org, Russell King - ARM Linux <linux@....linux.org.uk>, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will.deacon@....com>, "benh@...nel.crashing.org" <benh@...nel.crashing.org>, paulus@...ba.org, mpe@...erman.id.au, Martin Schwidefsky <schwidefsky@...ibm.com>, eiko.carstens@...ibm.com, linux390@...ibm.com, Chris Metcalf <cmetcalf@...era.com>, Guan Xuetao <gxt@...c.pku.edu.cn>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>, Arnd Bergmann <arnd@...db.de>, Greg KH <gregkh@...uxfoundation.org>, Andy Lutomirski <luto@...capital.net>, Oleg Nesterov <oleg@...hat.com>, Andrew Morton <akpm@...ux-foundation.org>, dave.long@...aro.org, Christoph Hellwig <hch@...radead.org>, Arjan van de Ven <arjan@...ux.intel.com> Subject: Re: [RFC PATCH] make CONFIG_STRICT_DEVMEM a core non-debug feature 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 -- 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/
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