linux-kernel - Re: [PATCH v4 3/5] irqchip/gic: Restore CPU interface checking

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: <20160422133356.GK2998@e104818-lin.cambridge.arm.com>
Date:	Fri, 22 Apr 2016 14:33:56 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Suzuki K Poulose <suzuki.poulose@....com>
Cc:	linux-arm-kernel@...ts.infradead.org, mark.rutland@....com,
	marc.zyngier@....com, will.deacon@....com,
	linux-kernel@...r.kernel.org, Vadim.Lomovtsev@...iumnetworks.com
Subject: Re: [PATCH v4 3/5] irqchip/gic: Restore CPU interface checking

On Fri, Apr 22, 2016 at 12:25:33PM +0100, Suzuki K. Poulose wrote:
> From: Marc Zyngier <marc.zyngier@....com>
> 
> When introducing the whole CPU feature detection framework,
> we lost the capability to detect a mismatched GIC configuration
> (using the GICv2 MMIO interface, but having the system register
> interface enabled).
> 
> In order to solve this, use the new this_cpu_has_cap() helper.
> Also move the check to the CPU interface path in order to catch
> systems where the first CPU has been correctly configured,
> but the secondaries are not.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@....com>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>

Acked-by: Catalin Marinas <catalin.marinas@....com>