Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757928AbbEEKv2 (ORCPT ); Tue, 5 May 2015 06:51:28 -0400 Received: from foss.arm.com ([217.140.101.70]:44373 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753400AbbEEKvR (ORCPT ); Tue, 5 May 2015 06:51:17 -0400 Date: Tue, 5 May 2015 11:51:11 +0100 From: Will Deacon To: =?iso-8859-1?Q?Andr=E9?= Hentschel Cc: "linux-arch@vger.kernel.org" , Russell King - ARM Linux , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "gregkh@linuxfoundation.org" , Jonathan Austin , Nathan Lynch Subject: Re: [PATCH] arm64: Preserve the user r/w register tpidr_el0 on context switch and fork in compat mode Message-ID: <20150505105111.GB1550@arm.com> References: <55464BB2.7030401@dawncrow.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <55464BB2.7030401@dawncrow.de> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 984 Lines: 25 On Sun, May 03, 2015 at 05:24:18PM +0100, Andr? Hentschel wrote: > From: Andr? Hentschel > > Since commit a4780adeefd042482f624f5e0d577bf9cdcbb760 the user writeable TLS > register on ARM is preserved per thread. > > This patch does it analogous to the ARM patch, but for compat mode on ARM64. > > Signed-off-by: Andr? Hentschel > Cc: Will Deacon > Cc: Jonathan Austin > > --- > This patch is against Linux 4.1-rc1 (b787f68c36d49bb1d9236f403813641efa74a031) Curious, but why do you need this? iirc, we added this for arch/arm/ because of some windows rt (?) emulation in wine. Is that still the case here and is anybody actually using that? Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/