From patchwork Mon Jul 9 14:19:42 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 141418 Delivered-To: patch@linaro.org Received: by 2002:a2e:9754:0:0:0:0:0 with SMTP id f20-v6csp2726876ljj; Mon, 9 Jul 2018 07:19:08 -0700 (PDT) X-Google-Smtp-Source: AAOMgpeQZeWYafGNB7CENn4q47Vwdmo4AwFA8UtqjyPShqmLn+xdNUaiylg+Hguw/DR4TBwzrDSY X-Received: by 2002:a63:4450:: with SMTP id t16-v6mr19092252pgk.102.1531145948567; Mon, 09 Jul 2018 07:19:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531145948; cv=none; d=google.com; s=arc-20160816; b=YK3j467ItsEB2WhdWXvipCyEKzkWN2hWXYXHE20vRPt/Mu+ZN5q/bLXn2iiHxvqAUt LoItSesWkcgmJHc0+gHD1i4wEMzfkHFTnNtkDKEJa5Lt2Fto7doiXUK+NhIC23vWs2+M aFLEJ4zB2vqFe/3nBqkq1iEKMU9GDH3w5h4YmTmyOOg0PYGNplnQPbYpF/NCytfVPgTC o/T5mcO/pCYBTE6gAXKMPmbm4K+ux280TXINwcq97qFMdRaFAT8iWpOcblG1olhb5nn0 xCyMdcZ86DABgwpvi04b7JcmAaMV+9nNhm6h0ic/0MX85AYiiQooN4KdGIhI7Uu8XaO5 W2Tg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :arc-authentication-results; bh=Wi2UyrQY0jg//DrfzXbO0OLGwwJaBVvJ/tvs4Mz2Occ=; b=ZN96qtGZvwgFo0q0brmYCudw0MqjqchowZOvqLJqBuFRjEge3fSFIXlXDcFhk8APYx SNxcU125ddT8uNhk+xeS31v+cwaAQ1rkxM/E9Uc1Z7SVoYPXIBnugKry1ycSk9Nz+46U bo4n0vw8oQvJFLffk50YSYJybXvCaANQ2d/HD3GGlrlfGmmSVu6PgaaEIFbxSV90/JDW w5SUJ5byAlyllV7HpMMMhjTukaV3H5O/jYc2V5859qT+phmCGMX9SFa7PkzHamw8Mbpy N4+ZhXRVGuKwfh51ElLp33zmvbYh30MCPBbhHgBcyD11tlwiR02v1DoNGmVQiT/ihfNE 29wA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id b76-v6si15711651pfl.223.2018.07.09.07.19.08; Mon, 09 Jul 2018 07:19:08 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754559AbeGIOTG (ORCPT + 30 others); Mon, 9 Jul 2018 10:19:06 -0400 Received: from foss.arm.com ([217.140.101.70]:59788 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752112AbeGIOTF (ORCPT ); Mon, 9 Jul 2018 10:19:05 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BCAB2ED1; Mon, 9 Jul 2018 07:19:04 -0700 (PDT) Received: from edgewater-inn.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8DE543F589; Mon, 9 Jul 2018 07:19:04 -0700 (PDT) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 08EFB1AE3638; Mon, 9 Jul 2018 15:19:45 +0100 (BST) From: Will Deacon To: linux-arm-kernel@lists.infradead.org, mathieu.desnoyers@efficios.com Cc: arnd@arndb.de, peterz@infradead.org, paulmck@linux.vnet.ibm.com, boqun.feng@gmail.com, peter.maydell@linaro.org, linux-kernel@vger.kernel.org, Will Deacon Subject: [PATCH v2 0/3] Support rseq on arm64 Date: Mon, 9 Jul 2018 15:19:42 +0100 Message-Id: <1531145985-3747-1-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This is version two of the patches previously posted here: http://lkml.kernel.org/r/1529949285-11013-1-git-send-email-will.deacon@arm.com Changes since v1 include: * Move abort handler in-line to avoid possibility of it being out-of-range for conditional branch instructions I've tested both native and compat (little-endian only) with the selftests and they pass successfully on my Seattle box. Thanks, Will --->8 Will Deacon (3): arm64: rseq: Implement backend rseq calls and select HAVE_RSEQ asm-generic: unistd.h: Wire up sys_rseq rseq/selftests: Add support for arm64 arch/arm64/Kconfig | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 + arch/arm64/kernel/entry.S | 2 + arch/arm64/kernel/ptrace.c | 2 + arch/arm64/kernel/signal.c | 3 + include/uapi/asm-generic/unistd.h | 4 +- tools/testing/selftests/rseq/param_test.c | 20 + tools/testing/selftests/rseq/rseq-arm64.h | 594 ++++++++++++++++++++++++++++++ tools/testing/selftests/rseq/rseq.h | 2 + 10 files changed, 630 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/rseq/rseq-arm64.h -- 2.1.4 Acked-by: Mathieu Desnoyers