Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 1 | /* |
| 2 | * TPM configuration |
| 3 | * |
| 4 | * Copyright (C) 2011-2013 IBM Corporation |
| 5 | * |
| 6 | * Authors: |
| 7 | * Stefan Berger <stefanb@us.ibm.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 10 | * See the COPYING file in the top-level directory. |
| 11 | * |
| 12 | * Based on net.c |
| 13 | */ |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 14 | |
Peter Maydell | d38ea87 | 2016-01-29 17:50:05 +0000 | [diff] [blame] | 15 | #include "qemu/osdep.h" |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 16 | |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 17 | #include "qapi/error.h" |
Markus Armbruster | 9af2398 | 2018-02-11 10:36:01 +0100 | [diff] [blame] | 18 | #include "qapi/qapi-commands-tpm.h" |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 19 | #include "qapi/qmp/qerror.h" |
Paolo Bonzini | dccfcd0 | 2013-04-08 16:55:25 +0200 | [diff] [blame] | 20 | #include "sysemu/tpm_backend.h" |
Paolo Bonzini | bdee56f | 2013-04-02 18:28:41 +0200 | [diff] [blame] | 21 | #include "sysemu/tpm.h" |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 22 | #include "qemu/config-file.h" |
Markus Armbruster | d49b683 | 2015-03-17 18:29:20 +0100 | [diff] [blame] | 23 | #include "qemu/error-report.h" |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 24 | |
| 25 | static QLIST_HEAD(, TPMBackend) tpm_backends = |
| 26 | QLIST_HEAD_INITIALIZER(tpm_backends); |
| 27 | |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 28 | static const TPMBackendClass * |
| 29 | tpm_be_find_by_type(enum TpmType type) |
Marc-André Lureau | f3faa1d | 2017-10-10 00:55:45 +0200 | [diff] [blame] | 30 | { |
| 31 | ObjectClass *oc; |
Marc-André Lureau | f3faa1d | 2017-10-10 00:55:45 +0200 | [diff] [blame] | 32 | char *typename = g_strdup_printf("tpm-%s", TpmType_str(type)); |
| 33 | |
| 34 | oc = object_class_by_name(typename); |
| 35 | g_free(typename); |
| 36 | |
| 37 | if (!object_class_dynamic_cast(oc, TYPE_TPM_BACKEND)) { |
| 38 | return NULL; |
| 39 | } |
| 40 | |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 41 | return TPM_BACKEND_CLASS(oc); |
Marc-André Lureau | f3faa1d | 2017-10-10 00:55:45 +0200 | [diff] [blame] | 42 | } |
| 43 | |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 44 | /* |
| 45 | * Walk the list of available TPM backend drivers and display them on the |
| 46 | * screen. |
| 47 | */ |
Paolo Bonzini | bdee56f | 2013-04-02 18:28:41 +0200 | [diff] [blame] | 48 | static void tpm_display_backend_drivers(void) |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 49 | { |
Markus Armbruster | 5a6791c | 2020-07-23 13:58:45 +0200 | [diff] [blame] | 50 | bool got_one = false; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 51 | int i; |
| 52 | |
Marc-André Lureau | a9a72ae | 2017-08-24 10:45:58 +0200 | [diff] [blame] | 53 | for (i = 0; i < TPM_TYPE__MAX; i++) { |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 54 | const TPMBackendClass *bc = tpm_be_find_by_type(i); |
| 55 | if (!bc) { |
Marc-André Lureau | a9a72ae | 2017-08-24 10:45:58 +0200 | [diff] [blame] | 56 | continue; |
| 57 | } |
Markus Armbruster | 5a6791c | 2020-07-23 13:58:45 +0200 | [diff] [blame] | 58 | if (!got_one) { |
| 59 | error_printf("Supported TPM types (choose only one):\n"); |
| 60 | got_one = true; |
| 61 | } |
| 62 | error_printf("%12s %s\n", TpmType_str(i), bc->desc); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 63 | } |
Markus Armbruster | 5a6791c | 2020-07-23 13:58:45 +0200 | [diff] [blame] | 64 | if (!got_one) { |
| 65 | error_printf("No TPM backend types are available\n"); |
| 66 | } |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | /* |
| 70 | * Find the TPM with the given Id |
| 71 | */ |
Marc-André Lureau | d36e7db | 2017-11-06 19:39:14 +0100 | [diff] [blame] | 72 | TPMBackend *qemu_find_tpm_be(const char *id) |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 73 | { |
| 74 | TPMBackend *drv; |
| 75 | |
| 76 | if (id) { |
| 77 | QLIST_FOREACH(drv, &tpm_backends, list) { |
| 78 | if (!strcmp(drv->id, id)) { |
| 79 | return drv; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | return NULL; |
| 85 | } |
| 86 | |
Marc-André Lureau | 76ae76b | 2017-10-10 00:55:51 +0200 | [diff] [blame] | 87 | static int tpm_init_tpmdev(void *dummy, QemuOpts *opts, Error **errp) |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 88 | { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 89 | /* |
| 90 | * Use of error_report() in a function with an Error ** parameter |
| 91 | * is suspicious. It is okay here. The parameter only exists to |
| 92 | * make the function usable with qemu_opts_foreach(). It is not |
| 93 | * actually used. |
| 94 | */ |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 95 | const char *value; |
| 96 | const char *id; |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 97 | const TPMBackendClass *be; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 98 | TPMBackend *drv; |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 99 | Error *local_err = NULL; |
Marc-André Lureau | d91a7a5 | 2017-10-10 00:55:46 +0200 | [diff] [blame] | 100 | int i; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 101 | |
| 102 | if (!QLIST_EMPTY(&tpm_backends)) { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 103 | error_report("Only one TPM is allowed."); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 104 | return 1; |
| 105 | } |
| 106 | |
| 107 | id = qemu_opts_id(opts); |
| 108 | if (id == NULL) { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 109 | error_report(QERR_MISSING_PARAMETER, "id"); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 110 | return 1; |
| 111 | } |
| 112 | |
| 113 | value = qemu_opt_get(opts, "type"); |
| 114 | if (!value) { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 115 | error_report(QERR_MISSING_PARAMETER, "type"); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 116 | tpm_display_backend_drivers(); |
| 117 | return 1; |
| 118 | } |
| 119 | |
Marc-André Lureau | d91a7a5 | 2017-10-10 00:55:46 +0200 | [diff] [blame] | 120 | i = qapi_enum_parse(&TpmType_lookup, value, -1, NULL); |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 121 | be = i >= 0 ? tpm_be_find_by_type(i) : NULL; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 122 | if (be == NULL) { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 123 | error_report(QERR_INVALID_PARAMETER_VALUE, |
| 124 | "type", "a TPM backend type"); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 125 | tpm_display_backend_drivers(); |
| 126 | return 1; |
| 127 | } |
| 128 | |
Stefan Berger | bb71623 | 2013-04-22 10:41:39 -0400 | [diff] [blame] | 129 | /* validate backend specific opts */ |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 130 | if (!qemu_opts_validate(opts, be->opts, &local_err)) { |
| 131 | error_report_err(local_err); |
Stefan Berger | bb71623 | 2013-04-22 10:41:39 -0400 | [diff] [blame] | 132 | return 1; |
| 133 | } |
| 134 | |
Marc-André Lureau | 9f7c0ef | 2017-11-06 19:39:09 +0100 | [diff] [blame] | 135 | drv = be->create(opts); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 136 | if (!drv) { |
| 137 | return 1; |
| 138 | } |
| 139 | |
Marc-André Lureau | 9f7c0ef | 2017-11-06 19:39:09 +0100 | [diff] [blame] | 140 | drv->id = g_strdup(id); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 141 | QLIST_INSERT_HEAD(&tpm_backends, drv, list); |
| 142 | |
| 143 | return 0; |
| 144 | } |
| 145 | |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 146 | /* |
| 147 | * Walk the list of TPM backend drivers that are in use and call their |
| 148 | * destroy function to have them cleaned up. |
| 149 | */ |
| 150 | void tpm_cleanup(void) |
| 151 | { |
| 152 | TPMBackend *drv, *next; |
| 153 | |
| 154 | QLIST_FOREACH_SAFE(drv, &tpm_backends, list, next) { |
| 155 | QLIST_REMOVE(drv, list); |
Amarnath Valluri | f35fe5c | 2017-09-29 14:10:15 +0300 | [diff] [blame] | 156 | object_unref(OBJECT(drv)); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 157 | } |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | * Initialize the TPM. Process the tpmdev command line options describing the |
| 162 | * TPM backend. |
| 163 | */ |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 164 | int tpm_init(void) |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 165 | { |
Markus Armbruster | d64072c0 | 2020-07-23 13:58:44 +0200 | [diff] [blame] | 166 | if (qemu_opts_foreach(qemu_find_opts("tpmdev"), |
| 167 | tpm_init_tpmdev, NULL, NULL)) { |
| 168 | return -1; |
| 169 | } |
| 170 | |
| 171 | return 0; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | /* |
| 175 | * Parse the TPM configuration options. |
| 176 | * To display all available TPM backends the user may use '-tpmdev help' |
| 177 | */ |
Philippe Mathieu-Daudé | fcd9a35 | 2023-10-04 14:00:18 +0200 | [diff] [blame] | 178 | int tpm_config_parse(QemuOptsList *opts_list, const char *optstr) |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 179 | { |
| 180 | QemuOpts *opts; |
| 181 | |
Philippe Mathieu-Daudé | fcd9a35 | 2023-10-04 14:00:18 +0200 | [diff] [blame] | 182 | if (!strcmp(optstr, "help")) { |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 183 | tpm_display_backend_drivers(); |
| 184 | return -1; |
| 185 | } |
Philippe Mathieu-Daudé | fcd9a35 | 2023-10-04 14:00:18 +0200 | [diff] [blame] | 186 | opts = qemu_opts_parse_noisily(opts_list, optstr, true); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 187 | if (!opts) { |
| 188 | return -1; |
| 189 | } |
| 190 | return 0; |
| 191 | } |
| 192 | |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 193 | /* |
Markus Armbruster | eb815e2 | 2018-02-11 10:36:05 +0100 | [diff] [blame] | 194 | * Walk the list of active TPM backends and collect information about them. |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 195 | */ |
| 196 | TPMInfoList *qmp_query_tpm(Error **errp) |
| 197 | { |
| 198 | TPMBackend *drv; |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 199 | TPMInfoList *head = NULL, **tail = &head; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 200 | |
| 201 | QLIST_FOREACH(drv, &tpm_backends, list) { |
Marc-André Lureau | 191adc9 | 2017-11-06 19:39:04 +0100 | [diff] [blame] | 202 | if (!drv->tpmif) { |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 203 | continue; |
| 204 | } |
Marc-André Lureau | 191adc9 | 2017-11-06 19:39:04 +0100 | [diff] [blame] | 205 | |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 206 | QAPI_LIST_APPEND(tail, tpm_backend_query_tpm(drv)); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | return head; |
| 210 | } |
| 211 | |
| 212 | TpmTypeList *qmp_query_tpm_types(Error **errp) |
| 213 | { |
| 214 | unsigned int i = 0; |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 215 | TpmTypeList *head = NULL, **tail = &head; |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 216 | |
Eric Blake | 7fb1cf1 | 2015-11-18 01:52:57 -0700 | [diff] [blame] | 217 | for (i = 0; i < TPM_TYPE__MAX; i++) { |
Marc-André Lureau | d31076b | 2017-10-10 00:55:49 +0200 | [diff] [blame] | 218 | if (!tpm_be_find_by_type(i)) { |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 219 | continue; |
| 220 | } |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 221 | QAPI_LIST_APPEND(tail, i); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 222 | } |
| 223 | |
| 224 | return head; |
| 225 | } |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 226 | TpmModelList *qmp_query_tpm_models(Error **errp) |
| 227 | { |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 228 | TpmModelList *head = NULL, **tail = &head; |
Marc-André Lureau | d3fd953 | 2017-11-06 19:39:25 +0100 | [diff] [blame] | 229 | GSList *e, *l = object_class_get_list(TYPE_TPM_IF, false); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 230 | |
Marc-André Lureau | d3fd953 | 2017-11-06 19:39:25 +0100 | [diff] [blame] | 231 | for (e = l; e; e = e->next) { |
| 232 | TPMIfClass *c = TPM_IF_CLASS(e->data); |
| 233 | |
Eric Blake | 95b3a8c | 2021-01-13 16:10:13 -0600 | [diff] [blame] | 234 | QAPI_LIST_APPEND(tail, c->model); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 235 | } |
Marc-André Lureau | d3fd953 | 2017-11-06 19:39:25 +0100 | [diff] [blame] | 236 | g_slist_free(l); |
Stefan Berger | d1a0cf7 | 2013-02-27 12:47:49 -0500 | [diff] [blame] | 237 | |
| 238 | return head; |
| 239 | } |