| /* |
| * Copyright (c) 2013-2017, Intel Corporation |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * * Neither the name of Intel Corporation nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "intel-pt.h" |
| |
| #include <string.h> |
| #include <stddef.h> |
| |
| |
| int pt_cpu_errata(struct pt_errata *errata, const struct pt_cpu *cpu) |
| { |
| if (!errata || !cpu) |
| return -pte_invalid; |
| |
| memset(errata, 0, sizeof(*errata)); |
| |
| /* We don't know about others. */ |
| if (cpu->vendor != pcv_intel) |
| return 0; |
| |
| switch (cpu->family) { |
| case 0x6: |
| switch (cpu->model) { |
| case 0x3d: |
| case 0x47: |
| case 0x4f: |
| case 0x56: |
| errata->bdm70 = 1; |
| errata->bdm64 = 1; |
| break; |
| |
| case 0x4e: |
| case 0x5e: |
| errata->bdm70 = 1; |
| errata->skd007 = 1; |
| errata->skd022 = 1; |
| errata->skd010 = 1; |
| break; |
| } |
| break; |
| } |
| |
| return 0; |
| } |
| |
| int pt_config_from_user(struct pt_config *config, |
| const struct pt_config *uconfig) |
| { |
| uint8_t *begin, *end; |
| size_t size; |
| |
| if (!config) |
| return -pte_internal; |
| |
| if (!uconfig) |
| return -pte_invalid; |
| |
| size = uconfig->size; |
| if (size < offsetof(struct pt_config, decode)) |
| return -pte_bad_config; |
| |
| begin = uconfig->begin; |
| end = uconfig->end; |
| |
| if (!begin || !end || end < begin) |
| return -pte_bad_config; |
| |
| /* Ignore fields in the user's configuration we don't know; zero out |
| * fields the user didn't know about. |
| */ |
| if (sizeof(*config) <= size) |
| size = sizeof(*config); |
| else |
| memset(((uint8_t *) config) + size, 0, sizeof(*config) - size); |
| |
| /* Copy (portions of) the user's configuration. */ |
| memcpy(config, uconfig, size); |
| |
| /* We copied user's size - fix it. */ |
| config->size = size; |
| |
| return 0; |
| } |