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{ "id": 814445, "url": "http://patchwork.ozlabs.org/api/covers/814445/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/1505524870-4783-1-git-send-email-linuxram@us.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<1505524870-4783-1-git-send-email-linuxram@us.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/1505524870-4783-1-git-send-email-linuxram@us.ibm.com/", "date": "2017-09-16T01:21:04", "name": "[0/6] mm, x86, powerpc: Memory Protection Keys enhancement", "submitter": { "id": 2667, "url": "http://patchwork.ozlabs.org/api/people/2667/?format=api", "name": "Ram Pai", "email": "linuxram@us.ibm.com" }, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/cover/1505524870-4783-1-git-send-email-linuxram@us.ibm.com/mbox/", "series": [ { "id": 3406, "url": "http://patchwork.ozlabs.org/api/series/3406/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=3406", "date": "2017-09-16T01:21:04", "name": "mm, x86, powerpc: Memory Protection Keys enhancement", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/3406/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/814445/comments/", "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xvF0B485xz9t16\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSat, 16 Sep 2017 11:23:38 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xvF0B2fXyzDrnj\n\tfor <patchwork-incoming@ozlabs.org>;\n\tSat, 16 Sep 2017 11:23:38 +1000 (AEST)", "from mail-qt0-x242.google.com (mail-qt0-x242.google.com\n\t[IPv6:2607:f8b0:400d:c0d::242])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xvDxm34L7zDrbr\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tSat, 16 Sep 2017 11:21:31 +1000 (AEST)", "by mail-qt0-x242.google.com with SMTP id f24so2499623qte.5\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tFri, 15 Sep 2017 18:21:31 -0700 (PDT)", "from localhost.localdomain (50-39-103-96.bvtn.or.frontiernet.net.\n\t[50.39.103.96]) by smtp.gmail.com with ESMTPSA id\n\tv11sm1493189qkl.45.2017.09.15.18.21.26\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tFri, 15 Sep 2017 18:21:28 -0700 (PDT)" ], "Authentication-Results": [ "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"WgHsYfG5\"; 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a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:sender:from:to:cc:subject:date:message-id;\n\tbh=MvoW+5pbVQvNBPXq5hwix1JEwYdvCgZj+7skyLtd3Xo=;\n\tb=tAdEwa4CaZnRkyGvD27xLBE9MQAXMJw6P+9opyHYUR4LZfT+v56qvG2XhsK7UTCXtE\n\t95eWwaSEV6PoEYiAkjJfmRSwbesimWO+COsAgTivj6ZSsu4WUqxNdIikZRDljMyQXdRi\n\tcNgih7X4f0D7ZVlJdVRsJ/Wp63yyPmDLgNuUOEJQOY2JSCIs8sF2OaFbgGQKMrYTj9b6\n\tDIPkpPSK1ZuUsT/uJiRMx5Llfw307llZ13l004N+TXFKJoHFOKVQpvWkUutSWIHZz7Du\n\tfaCfvGfqY7pTbx5zn6NH/yIWSMm0MB7J304kfQwnI3UHgAJ9ZSwscVhRgtDF6S68jcET\n\tU+cw==", "X-Gm-Message-State": "AHPjjUjfZw7y+5ishyDoCZOXgZi23TY0U0PH5cXVCMpAdTNmqNPRi9tA\n\tDVaMiAwGdH4Gcg==", "X-Google-Smtp-Source": "AOwi7QDNwK8Of48+0Fiz1bNt3q7945NZBh0uP2PqDyW45lqJ6atfIZO9tF+nOz+Na0S07+OPPoRANg==", "X-Received": "by 10.200.41.218 with SMTP id 26mr7689050qtt.291.1505524889497; \n\tFri, 15 Sep 2017 18:21:29 -0700 (PDT)", "From": "Ram Pai <linuxram@us.ibm.com>", "To": "mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,\n\tlinux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,\n\tlinux-mm@kvack.org, x86@kernel.org, linux-doc@vger.kernel.org", "Subject": "[PATCH 0/6] mm, x86, powerpc: Memory Protection Keys enhancement", "Date": "Fri, 15 Sep 2017 18:21:04 -0700", "Message-Id": "<1505524870-4783-1-git-send-email-linuxram@us.ibm.com>", "X-Mailer": "git-send-email 1.7.1", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.24", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "ebiederm@xmission.com, arnd@arndb.de, corbet@lwn.net, linuxram@us.ibm.com,\n\tmhocko@kernel.org, mingo@redhat.com, paulus@samba.org,\n\taneesh.kumar@linux.vnet.ibm.com, bauerman@linux.vnet.ibm.com,\n\takpm@linux-foundation.org, khandual@linux.vnet.ibm.com", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "The patch-series enhances memory protection keys feature.\n\nThe patch(1) introduces an additional vma bit to support 32\npkeys. PowerPC supports 32 pkeys.\n\nThe patch(2,3) introduces a new interface arch_pkeys_enabled(),\nthis interface can be used by arch-neutral code to display\nprotection key value in smap.\n\nThe patch(4) introduces a syfs interface, to display the static\nattributes of the protection key. Eg: max number of keys.\n\nThe last two patches, (5,6) update documentation.\n\nA separate patch series that enhances selftest will follow. The\nentire patch series that enables pkeys on powerpc is at \nhttps://github.com/rampai/memorykeys.git memkey.v9-rc1\n\nTesting:\n-------\nThis patches are tested on powerpc platform using a\nenhaced set of selftests.\nCould not test on x86 since I do not have access to\none with pkey support.\n\nHistory:\n-------\nversion v3:\n\t(1) sysfs interface - thanks Thiago.\n\t(2) Documentation update.\n\nversion v2:\n\t(1) Documentation is updated to better \n\t\tcapture the semantics.\n\t(2) introduced arch_pkeys_enabled() to find\n \t\tif an arch enables pkeys. Correspond-\n\t\ting change in logic that displays key\n\t\tvalue in smaps.\n\t(3) code rearranged in many places based on\n \t\tcomments from Dave Hansen, Balbir,\n\t \tAnshuman.\t\nversion v1: Initial version\n\nRam Pai (5):\n mm: introduce an additional vma bit for powerpc pkey\n mm, x86 : introduce arch_pkeys_enabled()\n mm: display pkey in smaps if arch_pkeys_enabled() is true\n Documentation/x86: Move protecton key documentation to arch neutral\n directory\n Documentation/vm: PowerPC specific updates to memory protection keys\n\nThiago Jung Bauermann (1):\n mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface\n\n Documentation/vm/protection-keys.txt | 160 +++++++++++++++++++++++++++++++++\n Documentation/x86/protection-keys.txt | 85 -----------------\n arch/powerpc/include/asm/pkeys.h | 2 +\n arch/powerpc/mm/pkeys.c | 20 ++++\n arch/x86/include/asm/mmu_context.h | 4 +-\n arch/x86/include/asm/pkeys.h | 2 +\n arch/x86/kernel/fpu/xstate.c | 5 +\n arch/x86/kernel/setup.c | 8 --\n arch/x86/mm/pkeys.c | 8 ++\n fs/proc/task_mmu.c | 17 ++--\n include/linux/mm.h | 16 ++--\n include/linux/pkeys.h | 9 ++\n mm/mprotect.c | 88 ++++++++++++++++++\n 13 files changed, 317 insertions(+), 107 deletions(-)\n create mode 100644 Documentation/vm/protection-keys.txt\n delete mode 100644 Documentation/x86/protection-keys.txt" }