1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019,2020 The FreeBSD Foundation 5 * 6 * Portions of this software were developed by Konstantin Belousov 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _X86_PROCCTL_H 32 #define _X86_PROCCTL_H 33 34 #define PROC_KPTI_CTL (PROC_PROCCTL_MD_MIN + 0) 35 #define PROC_KPTI_STATUS (PROC_PROCCTL_MD_MIN + 1) 36 #define PROC_LA_CTL (PROC_PROCCTL_MD_MIN + 2) 37 #define PROC_LA_STATUS (PROC_PROCCTL_MD_MIN + 3) 38 39 #define PROC_KPTI_CTL_ENABLE_ON_EXEC 1 40 #define PROC_KPTI_CTL_DISABLE_ON_EXEC 2 41 #define PROC_KPTI_STATUS_ACTIVE 0x80000000 42 43 #define PROC_LA_CTL_LA48_ON_EXEC 1 44 #define PROC_LA_CTL_LA57_ON_EXEC 2 45 #define PROC_LA_CTL_DEFAULT_ON_EXEC 3 46 47 #define PROC_LA_STATUS_LA48 0x01000000 48 #define PROC_LA_STATUS_LA57 0x02000000 49 50 #endif 51