2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2018 Andrew Turner
7 * This software was developed by SRI International and the University of
8 * Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
9 * ("CTSRD"), as part of the DARPA CRASH research programme.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include "opt_platform.h"
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
39 #include <sys/kernel.h>
42 #include <machine/cpu.h>
45 #include <dev/psci/psci.h>
48 typedef void (cpu_quirk_install)(void);
50 cpu_quirk_install *quirk_install;
55 static cpu_quirk_install install_psci_bp_hardening;
57 static struct cpu_quirks cpu_quirks[] = {
59 .midr_mask = CPU_IMPL_MASK | CPU_PART_MASK,
60 .midr_value = CPU_ID_RAW(CPU_IMPL_ARM, CPU_PART_CORTEX_A57,0,0),
61 .quirk_install = install_psci_bp_hardening,
64 .midr_mask = CPU_IMPL_MASK | CPU_PART_MASK,
65 .midr_value = CPU_ID_RAW(CPU_IMPL_ARM, CPU_PART_CORTEX_A72,0,0),
66 .quirk_install = install_psci_bp_hardening,
69 .midr_mask = CPU_IMPL_MASK | CPU_PART_MASK,
70 .midr_value = CPU_ID_RAW(CPU_IMPL_ARM, CPU_PART_CORTEX_A73,0,0),
71 .quirk_install = install_psci_bp_hardening,
74 .midr_mask = CPU_IMPL_MASK | CPU_PART_MASK,
75 .midr_value = CPU_ID_RAW(CPU_IMPL_ARM, CPU_PART_CORTEX_A75,0,0),
76 .quirk_install = install_psci_bp_hardening,
81 install_psci_bp_hardening(void)
85 PCPU_SET(bp_harden, psci_get_version);
90 install_cpu_errata(void)
97 for (i = 0; i < nitems(cpu_quirks); i++) {
98 if ((midr & cpu_quirks[i].midr_mask) ==
99 cpu_quirks[i].midr_value) {
100 cpu_quirks[i].quirk_install();