From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id B450B6B0253 for ; Thu, 28 Apr 2016 11:20:32 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id u190so169944811pfb.0 for ; Thu, 28 Apr 2016 08:20:32 -0700 (PDT) Received: from smtp.codeaurora.org (smtp.codeaurora.org. [198.145.29.96]) by mx.google.com with ESMTPS id b68si10768899pfb.21.2016.04.28.08.20.21 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 28 Apr 2016 08:20:21 -0700 (PDT) From: Christopher Covington Subject: VDSO unmap and remap support for additional architectures Date: Thu, 28 Apr 2016 11:18:52 -0400 Message-Id: <1461856737-17071-1-git-send-email-cov@codeaurora.org> In-Reply-To: <20151202121918.GA4523@arm.com> References: <20151202121918.GA4523@arm.com> Sender: owner-linux-mm@kvack.org List-ID: To: Catalin Marinas , criu@openvz.org, Laurent Dufour , Will Deacon , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org, linux-mm@kvack.org Please take a look at the following prototype of sharing the PowerPC VDSO unmap and remap code with other architectures. I've only hooked up arm64 to begin with. If folks think this is a reasonable approach I can work on 32 bit ARM as well. Not hearing back from an earlier request for guidance [1], I simply dove in and started hacking. Laurent's test case [2][3] is a compelling illustration of whether VDSO remap works or not on a given architecture. 1. https://lkml.org/lkml/2016/3/2/225 2. https://lists.openvz.org/pipermail/criu/2015-March/019161.html 3. http://lists.openvz.org/pipermail/criu/attachments/20150318/f02ed9ea/attachment.bin Thanks, Christopher Covington -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org