linux-kernel - Re: [PATCH 00/36] AArch64 Linux kernel port

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: <20120711085525.GA22437@arm.com>
Date:	Wed, 11 Jul 2012 09:55:25 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Arnd Bergmann <arnd@...db.de>, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Olof Johansson <olof@...om.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Russell King <linux@....linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 00/36] AArch64 Linux kernel port

On Tue, Jul 10, 2012 at 10:44:29PM +0100, Catalin Marinas wrote:
> On Tue, Jul 10, 2012 at 09:35:27PM +0100, Ingo Molnar wrote:
> > Do you *really* think that all of the 32-bit ARM code should 
> > essentially be thrown away when going to 64-bit ARM, that 
> > patches can only touch arch/arm64/ + drivers/ or the highway?
> 
> Definitely not, I don't think anyone claimed this. The 32-bit ARM code
> will have the same important place for a very long time, ARM Ltd isn't
> withdrawing support for this (it's the main revenue generator). I expect
> to see many new 32-bit platforms to appear, MP systems, big.little
> configurations etc. If there is need for bigger physical address space,
> LPAE support (even with its drawbacks) is still the preferred choice for
> mobile systems.

Just to be clear in case it doesn't look aligned with Arnd's comment.
I'm referring to the 32-bit ARM port - it has the same important place
as before, nothing from the 32-bit architecture code is thrown away
(over time, we may want to clean up old architecture versions but that's
a normal thing).

How the 32-bit ARM SoC is refactored and maintained it's up to the
arm-soc team and they are doing a great job.

-- 
Catalin
--
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/