{"id":811876,"url":"http://patchwork.ozlabs.org/api/patches/811876/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1504910713-7094-21-git-send-email-linuxram@us.ibm.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/projects/2/?format=json","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":"<1504910713-7094-21-git-send-email-linuxram@us.ibm.com>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/1504910713-7094-21-git-send-email-linuxram@us.ibm.com/","date":"2017-09-08T22:45:00","name":"[12/25] powerpc: ability to associate pkey to a vma","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":false,"hash":"2d032545347c46649fbee84a36869ec46d7d0c71","submitter":{"id":2667,"url":"http://patchwork.ozlabs.org/api/people/2667/?format=json","name":"Ram Pai","email":"linuxram@us.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1504910713-7094-21-git-send-email-linuxram@us.ibm.com/mbox/","series":[{"id":2303,"url":"http://patchwork.ozlabs.org/api/series/2303/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=2303","date":"2017-09-08T22:44:40","name":"powerpc: Free up RPAGE_RSV bits","version":1,"mbox":"http://patchwork.ozlabs.org/series/2303/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/811876/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/811876/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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 3xptjm6QThz9sBW\n\tfor ;\n\tSat, 9 Sep 2017 09:26:04 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xptjm4sLGzDqYV\n\tfor ;\n\tSat, 9 Sep 2017 09:26:04 +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 3xpsrm3QVJzDrdP\n\tfor ;\n\tSat, 9 Sep 2017 08:47:04 +1000 (AEST)","by mail-qt0-x242.google.com with SMTP id k2so2348973qte.5\n\tfor ;\n\tFri, 08 Sep 2017 15:47:04 -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\tx124sm2033726qka.85.2017.09.08.15.47.00\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tFri, 08 Sep 2017 15:47:02 -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=\"slscx0dT\"; 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VM_SAO : 0;\n+#ifdef CONFIG_PPC64_MEMORY_PROTECTION_KEYS\n+\treturn (((prot & PROT_SAO) ? VM_SAO : 0) |\n+\t\t\tpkey_to_vmflag_bits(pkey));\n+#else\n+\treturn ((prot & PROT_SAO) ? VM_SAO : 0);\n+#endif\n }\n #define arch_calc_vm_prot_bits(prot, pkey) arch_calc_vm_prot_bits(prot, pkey)\n \ndiff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h\nindex 0cf115f..f13e913 100644\n--- a/arch/powerpc/include/asm/pkeys.h\n+++ b/arch/powerpc/include/asm/pkeys.h\n@@ -23,6 +23,24 @@\n #define VM_PKEY_BIT4\tVM_HIGH_ARCH_4\n #endif\n \n+/* override any generic PKEY Permission defines */\n+#define PKEY_DISABLE_EXECUTE 0x4\n+#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\\\n+\t\t\t\tPKEY_DISABLE_WRITE |\\\n+\t\t\t\tPKEY_DISABLE_EXECUTE)\n+\n+static inline u64 pkey_to_vmflag_bits(u16 pkey)\n+{\n+\tif (!pkey_inited)\n+\t\treturn 0x0UL;\n+\n+\treturn (((pkey & 0x1UL) ? VM_PKEY_BIT0 : 0x0UL) |\n+\t\t((pkey & 0x2UL) ? VM_PKEY_BIT1 : 0x0UL) |\n+\t\t((pkey & 0x4UL) ? VM_PKEY_BIT2 : 0x0UL) |\n+\t\t((pkey & 0x8UL) ? VM_PKEY_BIT3 : 0x0UL) |\n+\t\t((pkey & 0x10UL) ? VM_PKEY_BIT4 : 0x0UL));\n+}\n+\n #define arch_max_pkey() pkeys_total\n #define AMR_RD_BIT 0x1UL\n #define AMR_WR_BIT 0x2UL\n","prefixes":["12/25"]}