linux-kernel - Re: [PATCH 3/3] ARM: errata 430973: move !ARCH

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: <20150727104341.GG7576@n2100.arm.linux.org.uk>
Date:	Mon, 27 Jul 2015 11:43:41 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Ben Dooks <ben.dooks@...ethink.co.uk>
Cc:	Sebastian Reichel <sre@...nel.org>,
	Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/3] ARM: errata 430973: move !ARCH_MULTIPLATFORM to
 Kconfig

On Mon, Jul 27, 2015 at 10:59:56AM +0100, Ben Dooks wrote:
> This isn't the only place ARM_ERRATA_430973 is used, and if
> you make it configurable on !ARCH_MULTIPLATFORM then it makes
> it impossible to use a ARCH_MULTIPLATFORM kernel on something
> that is an Cortex-A8.
> 
> See arch/arm/mm/proc-v7-2level.S

That has been fixed so that the BTAC/BTB always gets flushed on each
context switch for all Cortex-A8 CPUs, but none of the other v7 CPUs.

-- 
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
--
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/