From patchwork Tue Jun 18 02:24:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Hubbard X-Patchwork-Id: 13701693 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2079.outbound.protection.outlook.com [40.107.243.79]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2304F1D69E; Tue, 18 Jun 2024 02:24:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.243.79 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718677478; cv=fail; b=K7Sn2oe4I7y1GwMeewjQi0PXyykxMDJvev8Dg4ZrgenOubeA96iQPVh08QQg3Tp9gMml4PPVGGfQyAoqdT8/okHbTPgTdx5plf/XmQ4ZBVI3UNhZKMFJVkEUJ839+RTtrFZBQHx5Bof1mhGvIZEfBhBxYRP+Wf1NK/dbGz2i6QE= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718677478; c=relaxed/simple; bh=r25R3DLw42bRvjPfM3GMuKdb4gojkuS9PIw/UC3TZNg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=h91uFnlHtvsXfKmnIfjLoBby97hI6e/2S0hqBVzfkennZAWfixqGqfn1LsTJaPYsOg1BArMDxLoVR4HSp7RWeDYv7YxNGEN+hwE+6cGVV6EB9z6TApbxqXr48dqxERYLKxQI2GKU0OjXIa5Gc4XTBSeqV24w0otBDjJ3A2JV96k= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=AhlobOrt; arc=fail smtp.client-ip=40.107.243.79 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="AhlobOrt" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fDrr9S0oRn+91wwIiq294ubX+avDQOwls+aSZdoS97GzRNg46cCyV7onvTF3JhgIg7ufoT+GudPUF3pS+ptq6HogrkSzWNHdtpnBizG/YJSjf3lefg2WLQnhvD2wyYYzkTqmvTDq9Y4FO7rPXCjn4rLkBVG6t4ui+4tqhymhNNMPQy2G6Q/6LVUe5ZMGh3QMcnJ1QIM0xiSmgr5F2/1JKhaAuYDpAMaKEBvL5dwbLpMeK0f23E96rvwucf194xJTFlEBExmQhdKT6SoNz6WN3Fwq/Bm/3MtoygXW95B4ryyveeY1O9BtPd96eQ0km3nfPo7kdAQxKbPEUyxQqQdi5w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=4WrJZsMOp+aqB2aUs9lp8RMTT8HkgthjIv6hrWU1MrU=; b=KNTx82HyDraD0RMqW7QMOty/gSPsOuM6ZSk2jMBUpOZ+UOe3yVJLNTB4UuyX+KwI+wr9E4aK0xGW3cE6zFLWRJNp0bNhfSVs140eHXcIBSbMr+zajhnm5DGUEH07K4/IjbWZeV+6QH/+zfGQhmUCYABy4wocoSO8Y6jlHc/EJ/5+DGeoCBrHjtYL6gM9RxECTUNf6gOmWpE9bzPqNl9A1ebpUTJ2x325CF9mvWya4RD2CpSI/gyUyeRFbs1H33TaaQRQ2Did+oyhWBZl1xtC4QejVW64bfEDeG3n/4mPZNPWDBLyUm4boklrkcXu0sasCRvB3LV6is+MAUzQDkmeTg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4WrJZsMOp+aqB2aUs9lp8RMTT8HkgthjIv6hrWU1MrU=; b=AhlobOrtlM0TA3PddqACMmosnzhlwwIGhiqqeuZShqeDlxap11Q3xqG+z7m+3aZbWWfdJEsqTczxmDh3q2fc52AfKsxEI02KTDN9S3gg0pZBf8UT59M7ygUst+XR/WKYAiH4DPRURMVicKY+h3zRQB73t/6fpw+chmw8eXHGDIsCo2bJqpubhA7J1MkhPWn4oXTbkT/SlSvzuAVhwBri8foRaEqXA1FSRPAWZLF+konjIPvQx26nEPvElKStrOvxvFO9VubflNKMmQSP+tfO7UsYIt1AtAJZTI+1yPOeNkP0FB16GF8lDpA6AmUSYGi4m7DI3T94cH0Xb5yiB6YHlA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from BY5PR12MB4130.namprd12.prod.outlook.com (2603:10b6:a03:20b::16) by SA3PR12MB8047.namprd12.prod.outlook.com (2603:10b6:806:31b::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.31; Tue, 18 Jun 2024 02:24:28 +0000 Received: from BY5PR12MB4130.namprd12.prod.outlook.com ([fe80::2cf4:5198:354a:cd07]) by BY5PR12MB4130.namprd12.prod.outlook.com ([fe80::2cf4:5198:354a:cd07%4]) with mapi id 15.20.7677.030; Tue, 18 Jun 2024 02:24:28 +0000 From: John Hubbard To: Andrew Morton , Jeff Xu , Shuah Khan Cc: Andrei Vagin , Axel Rasmussen , Christian Brauner , David Hildenbrand , Kees Cook , Kent Overstreet , "Liam R . Howlett" , Muhammad Usama Anjum , Peter Xu , Rich Felker , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, LKML , John Hubbard Subject: [PATCH v3 5/6] selftests/mm: kvm, mdwe fixes to avoid requiring "make headers" Date: Mon, 17 Jun 2024 19:24:21 -0700 Message-ID: <20240618022422.804305-6-jhubbard@nvidia.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240618022422.804305-1-jhubbard@nvidia.com> References: <20240618022422.804305-1-jhubbard@nvidia.com> X-NVConfidentiality: public X-ClientProxiedBy: BYAPR08CA0031.namprd08.prod.outlook.com (2603:10b6:a03:100::44) To BY5PR12MB4130.namprd12.prod.outlook.com (2603:10b6:a03:20b::16) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BY5PR12MB4130:EE_|SA3PR12MB8047:EE_ X-MS-Office365-Filtering-Correlation-Id: 097689c9-3b85-48c6-9f82-08dc8f3dc77c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230037|7416011|376011|366013|1800799021; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BY5PR12MB4130.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230037)(7416011)(376011)(366013)(1800799021);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 097689c9-3b85-48c6-9f82-08dc8f3dc77c X-MS-Exchange-CrossTenant-AuthSource: BY5PR12MB4130.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jun 2024 02:24:28.3026 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wSCeEj0YnJgUbH+ry1AHGvrcB2a0QvboOKXJy96oXAJtjm67FQtyq0MnvyCTcntKe1uuuzKtXJqPXqyiQO8Xig== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA3PR12MB8047 On Ubuntu 23.04, the kvm and mdwe selftests/mm build fails due to missing a few items that are found in prctl.h. Here is an excerpt of the build failures: ksm_tests.c:252:13: error: use of undeclared identifier 'PR_SET_MEMORY_MERGE' ... mdwe_test.c:26:18: error: use of undeclared identifier 'PR_SET_MDWE' mdwe_test.c:38:18: error: use of undeclared identifier 'PR_GET_MDWE' Fix these errors by adding a new tools/include/uapi/linux/prctl.h . This file was created by running "make headers", and then copying a snapshot over from ./usr/include/linux/prctl.h, as per the approach we settled on in [1]. [1] commit e076eaca5906 ("selftests: break the dependency upon local header files") Cc: David Hildenbrand Signed-off-by: John Hubbard Acked-by: David Hildenbrand --- tools/include/uapi/linux/prctl.h | 331 +++++++++++++++++++++++++++++++ 1 file changed, 331 insertions(+) create mode 100644 tools/include/uapi/linux/prctl.h diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h new file mode 100644 index 000000000000..35791791a879 --- /dev/null +++ b/tools/include/uapi/linux/prctl.h @@ -0,0 +1,331 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _LINUX_PRCTL_H +#define _LINUX_PRCTL_H + +#include + +/* Values to pass as first argument to prctl() */ + +#define PR_SET_PDEATHSIG 1 /* Second arg is a signal */ +#define PR_GET_PDEATHSIG 2 /* Second arg is a ptr to return the signal */ + +/* Get/set current->mm->dumpable */ +#define PR_GET_DUMPABLE 3 +#define PR_SET_DUMPABLE 4 + +/* Get/set unaligned access control bits (if meaningful) */ +#define PR_GET_UNALIGN 5 +#define PR_SET_UNALIGN 6 +# define PR_UNALIGN_NOPRINT 1 /* silently fix up unaligned user accesses */ +# define PR_UNALIGN_SIGBUS 2 /* generate SIGBUS on unaligned user access */ + +/* Get/set whether or not to drop capabilities on setuid() away from + * uid 0 (as per security/commoncap.c) */ +#define PR_GET_KEEPCAPS 7 +#define PR_SET_KEEPCAPS 8 + +/* Get/set floating-point emulation control bits (if meaningful) */ +#define PR_GET_FPEMU 9 +#define PR_SET_FPEMU 10 +# define PR_FPEMU_NOPRINT 1 /* silently emulate fp operations accesses */ +# define PR_FPEMU_SIGFPE 2 /* don't emulate fp operations, send SIGFPE instead */ + +/* Get/set floating-point exception mode (if meaningful) */ +#define PR_GET_FPEXC 11 +#define PR_SET_FPEXC 12 +# define PR_FP_EXC_SW_ENABLE 0x80 /* Use FPEXC for FP exception enables */ +# define PR_FP_EXC_DIV 0x010000 /* floating point divide by zero */ +# define PR_FP_EXC_OVF 0x020000 /* floating point overflow */ +# define PR_FP_EXC_UND 0x040000 /* floating point underflow */ +# define PR_FP_EXC_RES 0x080000 /* floating point inexact result */ +# define PR_FP_EXC_INV 0x100000 /* floating point invalid operation */ +# define PR_FP_EXC_DISABLED 0 /* FP exceptions disabled */ +# define PR_FP_EXC_NONRECOV 1 /* async non-recoverable exc. mode */ +# define PR_FP_EXC_ASYNC 2 /* async recoverable exception mode */ +# define PR_FP_EXC_PRECISE 3 /* precise exception mode */ + +/* Get/set whether we use statistical process timing or accurate timestamp + * based process timing */ +#define PR_GET_TIMING 13 +#define PR_SET_TIMING 14 +# define PR_TIMING_STATISTICAL 0 /* Normal, traditional, + statistical process timing */ +# define PR_TIMING_TIMESTAMP 1 /* Accurate timestamp based + process timing */ + +#define PR_SET_NAME 15 /* Set process name */ +#define PR_GET_NAME 16 /* Get process name */ + +/* Get/set process endian */ +#define PR_GET_ENDIAN 19 +#define PR_SET_ENDIAN 20 +# define PR_ENDIAN_BIG 0 +# define PR_ENDIAN_LITTLE 1 /* True little endian mode */ +# define PR_ENDIAN_PPC_LITTLE 2 /* "PowerPC" pseudo little endian */ + +/* Get/set process seccomp mode */ +#define PR_GET_SECCOMP 21 +#define PR_SET_SECCOMP 22 + +/* Get/set the capability bounding set (as per security/commoncap.c) */ +#define PR_CAPBSET_READ 23 +#define PR_CAPBSET_DROP 24 + +/* Get/set the process' ability to use the timestamp counter instruction */ +#define PR_GET_TSC 25 +#define PR_SET_TSC 26 +# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */ +# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */ + +/* Get/set securebits (as per security/commoncap.c) */ +#define PR_GET_SECUREBITS 27 +#define PR_SET_SECUREBITS 28 + +/* + * Get/set the timerslack as used by poll/select/nanosleep + * A value of 0 means "use default" + */ +#define PR_SET_TIMERSLACK 29 +#define PR_GET_TIMERSLACK 30 + +#define PR_TASK_PERF_EVENTS_DISABLE 31 +#define PR_TASK_PERF_EVENTS_ENABLE 32 + +/* + * Set early/late kill mode for hwpoison memory corruption. + * This influences when the process gets killed on a memory corruption. + */ +#define PR_MCE_KILL 33 +# define PR_MCE_KILL_CLEAR 0 +# define PR_MCE_KILL_SET 1 + +# define PR_MCE_KILL_LATE 0 +# define PR_MCE_KILL_EARLY 1 +# define PR_MCE_KILL_DEFAULT 2 + +#define PR_MCE_KILL_GET 34 + +/* + * Tune up process memory map specifics. + */ +#define PR_SET_MM 35 +# define PR_SET_MM_START_CODE 1 +# define PR_SET_MM_END_CODE 2 +# define PR_SET_MM_START_DATA 3 +# define PR_SET_MM_END_DATA 4 +# define PR_SET_MM_START_STACK 5 +# define PR_SET_MM_START_BRK 6 +# define PR_SET_MM_BRK 7 +# define PR_SET_MM_ARG_START 8 +# define PR_SET_MM_ARG_END 9 +# define PR_SET_MM_ENV_START 10 +# define PR_SET_MM_ENV_END 11 +# define PR_SET_MM_AUXV 12 +# define PR_SET_MM_EXE_FILE 13 +# define PR_SET_MM_MAP 14 +# define PR_SET_MM_MAP_SIZE 15 + +/* + * This structure provides new memory descriptor + * map which mostly modifies /proc/pid/stat[m] + * output for a task. This mostly done in a + * sake of checkpoint/restore functionality. + */ +struct prctl_mm_map { + __u64 start_code; /* code section bounds */ + __u64 end_code; + __u64 start_data; /* data section bounds */ + __u64 end_data; + __u64 start_brk; /* heap for brk() syscall */ + __u64 brk; + __u64 start_stack; /* stack starts at */ + __u64 arg_start; /* command line arguments bounds */ + __u64 arg_end; + __u64 env_start; /* environment variables bounds */ + __u64 env_end; + __u64 *auxv; /* auxiliary vector */ + __u32 auxv_size; /* vector size */ + __u32 exe_fd; /* /proc/$pid/exe link file */ +}; + +/* + * Set specific pid that is allowed to ptrace the current task. + * A value of 0 mean "no process". + */ +#define PR_SET_PTRACER 0x59616d61 +# define PR_SET_PTRACER_ANY ((unsigned long)-1) + +#define PR_SET_CHILD_SUBREAPER 36 +#define PR_GET_CHILD_SUBREAPER 37 + +/* + * If no_new_privs is set, then operations that grant new privileges (i.e. + * execve) will either fail or not grant them. This affects suid/sgid, + * file capabilities, and LSMs. + * + * Operations that merely manipulate or drop existing privileges (setresuid, + * capset, etc.) will still work. Drop those privileges if you want them gone. + * + * Changing LSM security domain is considered a new privilege. So, for example, + * asking selinux for a specific new context (e.g. with runcon) will result + * in execve returning -EPERM. + * + * See Documentation/userspace-api/no_new_privs.rst for more details. + */ +#define PR_SET_NO_NEW_PRIVS 38 +#define PR_GET_NO_NEW_PRIVS 39 + +#define PR_GET_TID_ADDRESS 40 + +#define PR_SET_THP_DISABLE 41 +#define PR_GET_THP_DISABLE 42 + +/* + * No longer implemented, but left here to ensure the numbers stay reserved: + */ +#define PR_MPX_ENABLE_MANAGEMENT 43 +#define PR_MPX_DISABLE_MANAGEMENT 44 + +#define PR_SET_FP_MODE 45 +#define PR_GET_FP_MODE 46 +# define PR_FP_MODE_FR (1 << 0) /* 64b FP registers */ +# define PR_FP_MODE_FRE (1 << 1) /* 32b compatibility */ + +/* Control the ambient capability set */ +#define PR_CAP_AMBIENT 47 +# define PR_CAP_AMBIENT_IS_SET 1 +# define PR_CAP_AMBIENT_RAISE 2 +# define PR_CAP_AMBIENT_LOWER 3 +# define PR_CAP_AMBIENT_CLEAR_ALL 4 + +/* arm64 Scalable Vector Extension controls */ +/* Flag values must be kept in sync with ptrace NT_ARM_SVE interface */ +#define PR_SVE_SET_VL 50 /* set task vector length */ +# define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */ +#define PR_SVE_GET_VL 51 /* get task vector length */ +/* Bits common to PR_SVE_SET_VL and PR_SVE_GET_VL */ +# define PR_SVE_VL_LEN_MASK 0xffff +# define PR_SVE_VL_INHERIT (1 << 17) /* inherit across exec */ + +/* Per task speculation control */ +#define PR_GET_SPECULATION_CTRL 52 +#define PR_SET_SPECULATION_CTRL 53 +/* Speculation control variants */ +# define PR_SPEC_STORE_BYPASS 0 +# define PR_SPEC_INDIRECT_BRANCH 1 +# define PR_SPEC_L1D_FLUSH 2 +/* Return and control values for PR_SET/GET_SPECULATION_CTRL */ +# define PR_SPEC_NOT_AFFECTED 0 +# define PR_SPEC_PRCTL (1UL << 0) +# define PR_SPEC_ENABLE (1UL << 1) +# define PR_SPEC_DISABLE (1UL << 2) +# define PR_SPEC_FORCE_DISABLE (1UL << 3) +# define PR_SPEC_DISABLE_NOEXEC (1UL << 4) + +/* Reset arm64 pointer authentication keys */ +#define PR_PAC_RESET_KEYS 54 +# define PR_PAC_APIAKEY (1UL << 0) +# define PR_PAC_APIBKEY (1UL << 1) +# define PR_PAC_APDAKEY (1UL << 2) +# define PR_PAC_APDBKEY (1UL << 3) +# define PR_PAC_APGAKEY (1UL << 4) + +/* Tagged user address controls for arm64 */ +#define PR_SET_TAGGED_ADDR_CTRL 55 +#define PR_GET_TAGGED_ADDR_CTRL 56 +# define PR_TAGGED_ADDR_ENABLE (1UL << 0) +/* MTE tag check fault modes */ +# define PR_MTE_TCF_NONE 0UL +# define PR_MTE_TCF_SYNC (1UL << 1) +# define PR_MTE_TCF_ASYNC (1UL << 2) +# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC) +/* MTE tag inclusion mask */ +# define PR_MTE_TAG_SHIFT 3 +# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT) +/* Unused; kept only for source compatibility */ +# define PR_MTE_TCF_SHIFT 1 + +/* Control reclaim behavior when allocating memory */ +#define PR_SET_IO_FLUSHER 57 +#define PR_GET_IO_FLUSHER 58 + +/* Dispatch syscalls to a userspace handler */ +#define PR_SET_SYSCALL_USER_DISPATCH 59 +# define PR_SYS_DISPATCH_OFF 0 +# define PR_SYS_DISPATCH_ON 1 +/* The control values for the user space selector when dispatch is enabled */ +# define SYSCALL_DISPATCH_FILTER_ALLOW 0 +# define SYSCALL_DISPATCH_FILTER_BLOCK 1 + +/* Set/get enabled arm64 pointer authentication keys */ +#define PR_PAC_SET_ENABLED_KEYS 60 +#define PR_PAC_GET_ENABLED_KEYS 61 + +/* Request the scheduler to share a core */ +#define PR_SCHED_CORE 62 +# define PR_SCHED_CORE_GET 0 +# define PR_SCHED_CORE_CREATE 1 /* create unique core_sched cookie */ +# define PR_SCHED_CORE_SHARE_TO 2 /* push core_sched cookie to pid */ +# define PR_SCHED_CORE_SHARE_FROM 3 /* pull core_sched cookie to pid */ +# define PR_SCHED_CORE_MAX 4 +# define PR_SCHED_CORE_SCOPE_THREAD 0 +# define PR_SCHED_CORE_SCOPE_THREAD_GROUP 1 +# define PR_SCHED_CORE_SCOPE_PROCESS_GROUP 2 + +/* arm64 Scalable Matrix Extension controls */ +/* Flag values must be in sync with SVE versions */ +#define PR_SME_SET_VL 63 /* set task vector length */ +# define PR_SME_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */ +#define PR_SME_GET_VL 64 /* get task vector length */ +/* Bits common to PR_SME_SET_VL and PR_SME_GET_VL */ +# define PR_SME_VL_LEN_MASK 0xffff +# define PR_SME_VL_INHERIT (1 << 17) /* inherit across exec */ + +/* Memory deny write / execute */ +#define PR_SET_MDWE 65 +# define PR_MDWE_REFUSE_EXEC_GAIN (1UL << 0) +# define PR_MDWE_NO_INHERIT (1UL << 1) + +#define PR_GET_MDWE 66 + +#define PR_SET_VMA 0x53564d41 +# define PR_SET_VMA_ANON_NAME 0 + +#define PR_GET_AUXV 0x41555856 + +#define PR_SET_MEMORY_MERGE 67 +#define PR_GET_MEMORY_MERGE 68 + +#define PR_RISCV_V_SET_CONTROL 69 +#define PR_RISCV_V_GET_CONTROL 70 +# define PR_RISCV_V_VSTATE_CTRL_DEFAULT 0 +# define PR_RISCV_V_VSTATE_CTRL_OFF 1 +# define PR_RISCV_V_VSTATE_CTRL_ON 2 +# define PR_RISCV_V_VSTATE_CTRL_INHERIT (1 << 4) +# define PR_RISCV_V_VSTATE_CTRL_CUR_MASK 0x3 +# define PR_RISCV_V_VSTATE_CTRL_NEXT_MASK 0xc +# define PR_RISCV_V_VSTATE_CTRL_MASK 0x1f + +#define PR_RISCV_SET_ICACHE_FLUSH_CTX 71 +# define PR_RISCV_CTX_SW_FENCEI_ON 0 +# define PR_RISCV_CTX_SW_FENCEI_OFF 1 +# define PR_RISCV_SCOPE_PER_PROCESS 0 +# define PR_RISCV_SCOPE_PER_THREAD 1 + +/* PowerPC Dynamic Execution Control Register (DEXCR) controls */ +#define PR_PPC_GET_DEXCR 72 +#define PR_PPC_SET_DEXCR 73 +/* DEXCR aspect to act on */ +# define PR_PPC_DEXCR_SBHE 0 /* Speculative branch hint enable */ +# define PR_PPC_DEXCR_IBRTPD 1 /* Indirect branch recurrent target prediction disable */ +# define PR_PPC_DEXCR_SRAPD 2 /* Subroutine return address prediction disable */ +# define PR_PPC_DEXCR_NPHIE 3 /* Non-privileged hash instruction enable */ +/* Action to apply / return */ +# define PR_PPC_DEXCR_CTRL_EDITABLE 0x1 /* Aspect can be modified with PR_PPC_SET_DEXCR */ +# define PR_PPC_DEXCR_CTRL_SET 0x2 /* Set the aspect for this process */ +# define PR_PPC_DEXCR_CTRL_CLEAR 0x4 /* Clear the aspect for this process */ +# define PR_PPC_DEXCR_CTRL_SET_ONEXEC 0x8 /* Set the aspect on exec */ +# define PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC 0x10 /* Clear the aspect on exec */ +# define PR_PPC_DEXCR_CTRL_MASK 0x1f + +#endif /* _LINUX_PRCTL_H */