From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Wed, 1 Feb 2017 16:33:58 +0000 Subject: [PATCH v4 2/4] arm64: Work around Falkor erratum 1003 In-Reply-To: References: <20170125155232.10277-1-cov@codeaurora.org> <20170125155232.10277-2-cov@codeaurora.org> <20170131123735.GD11191@leverpostej> <36478002-4cd8-7f1c-1a25-8bfe35022a47@codeaurora.org> <3cab36fb-984a-beae-64db-6ce830ba94f6@arm.com> Message-ID: <20170201163358.GG8177@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Feb 01, 2017 at 11:29:22AM -0500, Christopher Covington wrote: > On 01/31/2017 12:56 PM, Marc Zyngier wrote: > > Given that all ARMv8 CPUs can support SW_PAN, it is more likely to be > > enabled than the ARMv8.1 PAN. I'd vote for supporting the workaround in > > that case too, and hope that people do enable the HW version. > > Okay, I'll do my best to add support for the SW PAN case. I rebased and > submitted v6 of the E1009 patch [1] so that it no longer depends on this > patch landing first, if you all are inclined to pick it up while work on > this E1003 patch continues. The alternative is not enabling SW_PAN (at runtime) if this errata is present, along with a warning stating that hardware-PAN should be enabled in kconfig instead. Not sure what distributions will make of that though. > 1. https://patchwork.kernel.org/patch/9547923/ Yup, I queued that one locally and I'll push to -next tomorrow. Thanks, Will