bellard | 6515b20 | 2006-05-03 22:02:44 +0000 | [diff] [blame] | 1 | /* |
| 2 | * ACPI implementation |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
bellard | 6515b20 | 2006-05-03 22:02:44 +0000 | [diff] [blame] | 4 | * Copyright (c) 2006 Fabrice Bellard |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 5 | * |
bellard | 6515b20 | 2006-05-03 22:02:44 +0000 | [diff] [blame] | 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License version 2 as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This library is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 16 | * License along with this library; if not, see <http://www.gnu.org/licenses/> |
Paolo Bonzini | 6b620ca | 2012-01-13 17:44:23 +0100 | [diff] [blame] | 17 | * |
| 18 | * Contributions after 2012-01-13 are licensed under the terms of the |
| 19 | * GNU GPL, version 2 or (at your option) any later version. |
bellard | 6515b20 | 2006-05-03 22:02:44 +0000 | [diff] [blame] | 20 | */ |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 21 | |
Peter Maydell | b6a0aa0 | 2016-01-26 18:17:03 +0000 | [diff] [blame] | 22 | #include "qemu/osdep.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 23 | #include "sysemu/sysemu.h" |
Paolo Bonzini | 83c9f4c | 2013-02-04 15:40:22 +0100 | [diff] [blame] | 24 | #include "hw/hw.h" |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 25 | #include "hw/acpi/acpi.h" |
Laszlo Ersek | e3845e7 | 2015-04-29 15:20:15 +0200 | [diff] [blame] | 26 | #include "hw/nvram/fw_cfg.h" |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 27 | #include "qemu/config-file.h" |
Markus Armbruster | e688df6 | 2018-02-01 12:18:31 +0100 | [diff] [blame] | 28 | #include "qapi/error.h" |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 29 | #include "qapi/opts-visitor.h" |
Markus Armbruster | 9af2398 | 2018-02-11 10:36:01 +0100 | [diff] [blame] | 30 | #include "qapi/qapi-events-run-state.h" |
Markus Armbruster | 112ed24 | 2018-02-26 17:13:27 -0600 | [diff] [blame] | 31 | #include "qapi/qapi-visit-misc.h" |
Alistair Francis | 2ab4b13 | 2017-09-11 12:52:50 -0700 | [diff] [blame] | 32 | #include "qemu/error-report.h" |
Markus Armbruster | 922a01a | 2018-02-01 12:18:46 +0100 | [diff] [blame] | 33 | #include "qemu/option.h" |
bellard | 6515b20 | 2006-05-03 22:02:44 +0000 | [diff] [blame] | 34 | |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 35 | struct acpi_table_header { |
| 36 | uint16_t _length; /* our length, not actual part of the hdr */ |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 37 | /* allows easier parsing for fw_cfg clients */ |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 38 | char sig[4]; /* ACPI signature (4 ASCII characters) */ |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 39 | uint32_t length; /* Length of table, in bytes, including header */ |
| 40 | uint8_t revision; /* ACPI Specification minor version # */ |
| 41 | uint8_t checksum; /* To make sum of entire table == 0 */ |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 42 | char oem_id[6]; /* OEM identification */ |
| 43 | char oem_table_id[8]; /* OEM table identification */ |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 44 | uint32_t oem_revision; /* OEM revision number */ |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 45 | char asl_compiler_id[4]; /* ASL compiler vendor ID */ |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 46 | uint32_t asl_compiler_revision; /* ASL compiler revision number */ |
Stefan Weil | 541dc0d | 2011-08-31 12:38:01 +0200 | [diff] [blame] | 47 | } QEMU_PACKED; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 48 | |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 49 | #define ACPI_TABLE_HDR_SIZE sizeof(struct acpi_table_header) |
| 50 | #define ACPI_TABLE_PFX_SIZE sizeof(uint16_t) /* size of the extra prefix */ |
| 51 | |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 52 | static const char unsigned dfl_hdr[ACPI_TABLE_HDR_SIZE - ACPI_TABLE_PFX_SIZE] = |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 53 | "QEMU\0\0\0\0\1\0" /* sig (4), len(4), revno (1), csum (1) */ |
| 54 | "QEMUQEQEMUQEMU\1\0\0\0" /* OEM id (6), table (8), revno (4) */ |
| 55 | "QEMU\1\0\0\0" /* ASL compiler ID (4), version (4) */ |
| 56 | ; |
| 57 | |
Laszlo Ersek | cb88a4e | 2013-03-21 00:23:14 +0100 | [diff] [blame] | 58 | char unsigned *acpi_tables; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 59 | size_t acpi_tables_len; |
| 60 | |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 61 | static QemuOptsList qemu_acpi_opts = { |
| 62 | .name = "acpi", |
| 63 | .implied_opt_name = "data", |
| 64 | .head = QTAILQ_HEAD_INITIALIZER(qemu_acpi_opts.head), |
| 65 | .desc = { { 0 } } /* validated with OptsVisitor */ |
| 66 | }; |
| 67 | |
| 68 | static void acpi_register_config(void) |
| 69 | { |
| 70 | qemu_add_opts(&qemu_acpi_opts); |
| 71 | } |
| 72 | |
Eduardo Habkost | 34294e2 | 2016-02-16 18:59:07 -0200 | [diff] [blame] | 73 | opts_init(acpi_register_config); |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 74 | |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 75 | static int acpi_checksum(const uint8_t *data, int len) |
| 76 | { |
| 77 | int sum, i; |
| 78 | sum = 0; |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 79 | for (i = 0; i < len; i++) { |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 80 | sum += data[i]; |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 81 | } |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 82 | return (-sum) & 0xff; |
| 83 | } |
| 84 | |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 85 | |
| 86 | /* Install a copy of the ACPI table specified in @blob. |
| 87 | * |
| 88 | * If @has_header is set, @blob starts with the System Description Table Header |
| 89 | * structure. Otherwise, "dfl_hdr" is prepended. In any case, each header field |
| 90 | * is optionally overwritten from @hdrs. |
| 91 | * |
| 92 | * It is valid to call this function with |
| 93 | * (@blob == NULL && bloblen == 0 && !has_header). |
| 94 | * |
| 95 | * @hdrs->file and @hdrs->data are ignored. |
| 96 | * |
| 97 | * SIZE_MAX is considered "infinity" in this function. |
| 98 | * |
| 99 | * The number of tables that can be installed is not limited, but the 16-bit |
| 100 | * counter at the beginning of "acpi_tables" wraps around after UINT16_MAX. |
| 101 | */ |
| 102 | static void acpi_table_install(const char unsigned *blob, size_t bloblen, |
| 103 | bool has_header, |
| 104 | const struct AcpiTableOptions *hdrs, |
| 105 | Error **errp) |
| 106 | { |
| 107 | size_t body_start; |
| 108 | const char unsigned *hdr_src; |
| 109 | size_t body_size, acpi_payload_size; |
| 110 | struct acpi_table_header *ext_hdr; |
| 111 | unsigned changed_fields; |
| 112 | |
| 113 | /* Calculate where the ACPI table body starts within the blob, plus where |
| 114 | * to copy the ACPI table header from. |
| 115 | */ |
| 116 | if (has_header) { |
| 117 | /* _length | ACPI header in blob | blob body |
| 118 | * ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^ |
| 119 | * ACPI_TABLE_PFX_SIZE sizeof dfl_hdr body_size |
| 120 | * == body_start |
| 121 | * |
| 122 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 123 | * acpi_payload_size == bloblen |
| 124 | */ |
| 125 | body_start = sizeof dfl_hdr; |
| 126 | |
| 127 | if (bloblen < body_start) { |
| 128 | error_setg(errp, "ACPI table claiming to have header is too " |
| 129 | "short, available: %zu, expected: %zu", bloblen, |
| 130 | body_start); |
| 131 | return; |
| 132 | } |
| 133 | hdr_src = blob; |
| 134 | } else { |
| 135 | /* _length | ACPI header in template | blob body |
| 136 | * ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^ |
| 137 | * ACPI_TABLE_PFX_SIZE sizeof dfl_hdr body_size |
| 138 | * == bloblen |
| 139 | * |
| 140 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 141 | * acpi_payload_size |
| 142 | */ |
| 143 | body_start = 0; |
| 144 | hdr_src = dfl_hdr; |
| 145 | } |
| 146 | body_size = bloblen - body_start; |
| 147 | acpi_payload_size = sizeof dfl_hdr + body_size; |
| 148 | |
| 149 | if (acpi_payload_size > UINT16_MAX) { |
| 150 | error_setg(errp, "ACPI table too big, requested: %zu, max: %u", |
| 151 | acpi_payload_size, (unsigned)UINT16_MAX); |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | /* We won't fail from here on. Initialize / extend the globals. */ |
| 156 | if (acpi_tables == NULL) { |
| 157 | acpi_tables_len = sizeof(uint16_t); |
| 158 | acpi_tables = g_malloc0(acpi_tables_len); |
| 159 | } |
| 160 | |
| 161 | acpi_tables = g_realloc(acpi_tables, acpi_tables_len + |
| 162 | ACPI_TABLE_PFX_SIZE + |
| 163 | sizeof dfl_hdr + body_size); |
| 164 | |
| 165 | ext_hdr = (struct acpi_table_header *)(acpi_tables + acpi_tables_len); |
| 166 | acpi_tables_len += ACPI_TABLE_PFX_SIZE; |
| 167 | |
| 168 | memcpy(acpi_tables + acpi_tables_len, hdr_src, sizeof dfl_hdr); |
| 169 | acpi_tables_len += sizeof dfl_hdr; |
| 170 | |
| 171 | if (blob != NULL) { |
| 172 | memcpy(acpi_tables + acpi_tables_len, blob + body_start, body_size); |
| 173 | acpi_tables_len += body_size; |
| 174 | } |
| 175 | |
| 176 | /* increase number of tables */ |
Peter Maydell | c65e5de | 2013-11-05 16:38:31 +0000 | [diff] [blame] | 177 | stw_le_p(acpi_tables, lduw_le_p(acpi_tables) + 1u); |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 178 | |
| 179 | /* Update the header fields. The strings need not be NUL-terminated. */ |
| 180 | changed_fields = 0; |
| 181 | ext_hdr->_length = cpu_to_le16(acpi_payload_size); |
| 182 | |
| 183 | if (hdrs->has_sig) { |
| 184 | strncpy(ext_hdr->sig, hdrs->sig, sizeof ext_hdr->sig); |
| 185 | ++changed_fields; |
| 186 | } |
| 187 | |
| 188 | if (has_header && le32_to_cpu(ext_hdr->length) != acpi_payload_size) { |
Alistair Francis | 8297be8 | 2017-09-11 12:52:53 -0700 | [diff] [blame] | 189 | warn_report("ACPI table has wrong length, header says " |
| 190 | "%" PRIu32 ", actual size %zu bytes", |
| 191 | le32_to_cpu(ext_hdr->length), acpi_payload_size); |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 192 | } |
| 193 | ext_hdr->length = cpu_to_le32(acpi_payload_size); |
| 194 | |
| 195 | if (hdrs->has_rev) { |
| 196 | ext_hdr->revision = hdrs->rev; |
| 197 | ++changed_fields; |
| 198 | } |
| 199 | |
| 200 | ext_hdr->checksum = 0; |
| 201 | |
| 202 | if (hdrs->has_oem_id) { |
| 203 | strncpy(ext_hdr->oem_id, hdrs->oem_id, sizeof ext_hdr->oem_id); |
| 204 | ++changed_fields; |
| 205 | } |
| 206 | if (hdrs->has_oem_table_id) { |
| 207 | strncpy(ext_hdr->oem_table_id, hdrs->oem_table_id, |
| 208 | sizeof ext_hdr->oem_table_id); |
| 209 | ++changed_fields; |
| 210 | } |
| 211 | if (hdrs->has_oem_rev) { |
| 212 | ext_hdr->oem_revision = cpu_to_le32(hdrs->oem_rev); |
| 213 | ++changed_fields; |
| 214 | } |
| 215 | if (hdrs->has_asl_compiler_id) { |
| 216 | strncpy(ext_hdr->asl_compiler_id, hdrs->asl_compiler_id, |
| 217 | sizeof ext_hdr->asl_compiler_id); |
| 218 | ++changed_fields; |
| 219 | } |
| 220 | if (hdrs->has_asl_compiler_rev) { |
| 221 | ext_hdr->asl_compiler_revision = cpu_to_le32(hdrs->asl_compiler_rev); |
| 222 | ++changed_fields; |
| 223 | } |
| 224 | |
| 225 | if (!has_header && changed_fields == 0) { |
Alistair Francis | 2ab4b13 | 2017-09-11 12:52:50 -0700 | [diff] [blame] | 226 | warn_report("ACPI table: no headers are specified"); |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 227 | } |
| 228 | |
| 229 | /* recalculate checksum */ |
| 230 | ext_hdr->checksum = acpi_checksum((const char unsigned *)ext_hdr + |
| 231 | ACPI_TABLE_PFX_SIZE, acpi_payload_size); |
| 232 | } |
| 233 | |
Laszlo Ersek | 2308432 | 2013-03-21 00:23:19 +0100 | [diff] [blame] | 234 | void acpi_table_add(const QemuOpts *opts, Error **errp) |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 235 | { |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 236 | AcpiTableOptions *hdrs = NULL; |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 237 | Error *err = NULL; |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 238 | char **pathnames = NULL; |
| 239 | char **cur; |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 240 | size_t bloblen = 0; |
| 241 | char unsigned *blob = NULL; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 242 | |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 243 | { |
Eric Blake | 09204ea | 2016-06-09 10:48:36 -0600 | [diff] [blame] | 244 | Visitor *v; |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 245 | |
Eric Blake | 09204ea | 2016-06-09 10:48:36 -0600 | [diff] [blame] | 246 | v = opts_visitor_new(opts); |
| 247 | visit_type_AcpiTableOptions(v, NULL, &hdrs, &err); |
| 248 | visit_free(v); |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | if (err) { |
| 252 | goto out; |
| 253 | } |
| 254 | if (hdrs->has_file == hdrs->has_data) { |
| 255 | error_setg(&err, "'-acpitable' requires one of 'data' or 'file'"); |
| 256 | goto out; |
| 257 | } |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 258 | |
| 259 | pathnames = g_strsplit(hdrs->has_file ? hdrs->file : hdrs->data, ":", 0); |
| 260 | if (pathnames == NULL || pathnames[0] == NULL) { |
| 261 | error_setg(&err, "'-acpitable' requires at least one pathname"); |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 262 | goto out; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 263 | } |
| 264 | |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 265 | /* now read in the data files, reallocating buffer as needed */ |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 266 | for (cur = pathnames; *cur; ++cur) { |
| 267 | int fd = open(*cur, O_RDONLY | O_BINARY); |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 268 | |
| 269 | if (fd < 0) { |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 270 | error_setg(&err, "can't open file %s: %s", *cur, strerror(errno)); |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 271 | goto out; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 272 | } |
| 273 | |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 274 | for (;;) { |
Laszlo Ersek | cb88a4e | 2013-03-21 00:23:14 +0100 | [diff] [blame] | 275 | char unsigned data[8192]; |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 276 | ssize_t r; |
| 277 | |
| 278 | r = read(fd, data, sizeof data); |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 279 | if (r == 0) { |
| 280 | break; |
| 281 | } else if (r > 0) { |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 282 | blob = g_realloc(blob, bloblen + r); |
| 283 | memcpy(blob + bloblen, data, r); |
| 284 | bloblen += r; |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 285 | } else if (errno != EINTR) { |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 286 | error_setg(&err, "can't read file %s: %s", |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 287 | *cur, strerror(errno)); |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 288 | close(fd); |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 289 | goto out; |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 290 | } |
Isaku Yamahata | d729bb9 | 2010-07-28 23:08:42 +0000 | [diff] [blame] | 291 | } |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 292 | |
| 293 | close(fd); |
Isaku Yamahata | d729bb9 | 2010-07-28 23:08:42 +0000 | [diff] [blame] | 294 | } |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 295 | |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 296 | acpi_table_install(blob, bloblen, hdrs->has_file, hdrs, &err); |
Michael Tokarev | 104bf02 | 2011-05-12 18:44:17 +0400 | [diff] [blame] | 297 | |
Laszlo Ersek | 445d9ca | 2013-03-21 00:23:15 +0100 | [diff] [blame] | 298 | out: |
Laszlo Ersek | e980f2b | 2013-03-21 00:23:18 +0100 | [diff] [blame] | 299 | g_free(blob); |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 300 | g_strfreev(pathnames); |
Eric Blake | 96a1616 | 2016-02-23 14:14:33 -0700 | [diff] [blame] | 301 | qapi_free_AcpiTableOptions(hdrs); |
Laszlo Ersek | 0c764a9 | 2013-03-21 00:23:17 +0100 | [diff] [blame] | 302 | |
Laszlo Ersek | 2308432 | 2013-03-21 00:23:19 +0100 | [diff] [blame] | 303 | error_propagate(errp, err); |
aliguori | 8a92ea2 | 2009-02-27 20:12:36 +0000 | [diff] [blame] | 304 | } |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 305 | |
Michael S. Tsirkin | 60de116 | 2013-10-07 14:41:40 +0300 | [diff] [blame] | 306 | static bool acpi_table_builtin = false; |
| 307 | |
| 308 | void acpi_table_add_builtin(const QemuOpts *opts, Error **errp) |
| 309 | { |
| 310 | acpi_table_builtin = true; |
| 311 | acpi_table_add(opts, errp); |
| 312 | } |
| 313 | |
| 314 | unsigned acpi_table_len(void *current) |
| 315 | { |
| 316 | struct acpi_table_header *hdr = current - sizeof(hdr->_length); |
| 317 | return hdr->_length; |
| 318 | } |
| 319 | |
| 320 | static |
| 321 | void *acpi_table_hdr(void *h) |
| 322 | { |
| 323 | struct acpi_table_header *hdr = h; |
| 324 | return &hdr->sig; |
| 325 | } |
| 326 | |
| 327 | uint8_t *acpi_table_first(void) |
| 328 | { |
| 329 | if (acpi_table_builtin || !acpi_tables) { |
| 330 | return NULL; |
| 331 | } |
| 332 | return acpi_table_hdr(acpi_tables + ACPI_TABLE_PFX_SIZE); |
| 333 | } |
| 334 | |
| 335 | uint8_t *acpi_table_next(uint8_t *current) |
| 336 | { |
| 337 | uint8_t *next = current + acpi_table_len(current); |
| 338 | |
| 339 | if (next - acpi_tables >= acpi_tables_len) { |
| 340 | return NULL; |
| 341 | } else { |
| 342 | return acpi_table_hdr(next); |
| 343 | } |
| 344 | } |
| 345 | |
Laszlo Ersek | 88594e4 | 2016-01-18 15:12:12 +0100 | [diff] [blame] | 346 | int acpi_get_slic_oem(AcpiSlicOem *oem) |
| 347 | { |
| 348 | uint8_t *u; |
| 349 | |
| 350 | for (u = acpi_table_first(); u; u = acpi_table_next(u)) { |
| 351 | struct acpi_table_header *hdr = (void *)(u - sizeof(hdr->_length)); |
| 352 | |
| 353 | if (memcmp(hdr->sig, "SLIC", 4) == 0) { |
| 354 | oem->id = hdr->oem_id; |
| 355 | oem->table_id = hdr->oem_table_id; |
| 356 | return 0; |
| 357 | } |
| 358 | } |
| 359 | return -1; |
| 360 | } |
| 361 | |
Gerd Hoffmann | da98c8e | 2012-02-23 13:45:20 +0100 | [diff] [blame] | 362 | static void acpi_notify_wakeup(Notifier *notifier, void *data) |
| 363 | { |
| 364 | ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup); |
| 365 | WakeupReason *reason = data; |
| 366 | |
| 367 | switch (*reason) { |
Gerd Hoffmann | 62aeb0f | 2012-02-23 13:45:24 +0100 | [diff] [blame] | 368 | case QEMU_WAKEUP_REASON_RTC: |
| 369 | ar->pm1.evt.sts |= |
| 370 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_RT_CLOCK_STATUS); |
| 371 | break; |
Gerd Hoffmann | 6595abc | 2012-02-23 13:45:25 +0100 | [diff] [blame] | 372 | case QEMU_WAKEUP_REASON_PMTIMER: |
| 373 | ar->pm1.evt.sts |= |
| 374 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_TIMER_STATUS); |
| 375 | break; |
Gerd Hoffmann | da98c8e | 2012-02-23 13:45:20 +0100 | [diff] [blame] | 376 | case QEMU_WAKEUP_REASON_OTHER: |
Gerd Hoffmann | da98c8e | 2012-02-23 13:45:20 +0100 | [diff] [blame] | 377 | /* ACPI_BITMASK_WAKE_STATUS should be set on resume. |
| 378 | Pretend that resume was caused by power button */ |
| 379 | ar->pm1.evt.sts |= |
| 380 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS); |
| 381 | break; |
Liu, Jinsong | 4bc78a8 | 2013-09-25 16:38:29 +0000 | [diff] [blame] | 382 | default: |
| 383 | break; |
Gerd Hoffmann | da98c8e | 2012-02-23 13:45:20 +0100 | [diff] [blame] | 384 | } |
| 385 | } |
| 386 | |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 387 | /* ACPI PM1a EVT */ |
Gerd Hoffmann | 2886be1 | 2012-02-23 13:45:17 +0100 | [diff] [blame] | 388 | uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar) |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 389 | { |
Pavel Dovgalyuk | 3ef0eab | 2014-11-07 13:31:33 +0300 | [diff] [blame] | 390 | /* Compare ns-clock, not PM timer ticks, because |
| 391 | acpi_pm_tmr_update function uses ns for setting the timer. */ |
| 392 | int64_t d = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| 393 | if (d >= muldiv64(ar->tmr.overflow_time, |
Rutuja Shah | 73bcb24 | 2016-03-21 21:32:30 +0530 | [diff] [blame] | 394 | NANOSECONDS_PER_SECOND, PM_TIMER_FREQUENCY)) { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 395 | ar->pm1.evt.sts |= ACPI_BITMASK_TIMER_STATUS; |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 396 | } |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 397 | return ar->pm1.evt.sts; |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 398 | } |
| 399 | |
Gerd Hoffmann | b5a7c02 | 2012-11-22 13:25:10 +0100 | [diff] [blame] | 400 | static void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 401 | { |
Gerd Hoffmann | 2886be1 | 2012-02-23 13:45:17 +0100 | [diff] [blame] | 402 | uint16_t pm1_sts = acpi_pm1_evt_get_sts(ar); |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 403 | if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) { |
| 404 | /* if TMRSTS is reset, then compute the new overflow time */ |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 405 | acpi_pm_tmr_calc_overflow_time(ar); |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 406 | } |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 407 | ar->pm1.evt.sts &= ~val; |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 408 | } |
| 409 | |
Gerd Hoffmann | b5a7c02 | 2012-11-22 13:25:10 +0100 | [diff] [blame] | 410 | static void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val) |
Gerd Hoffmann | 8283c4f | 2012-02-23 13:45:18 +0100 | [diff] [blame] | 411 | { |
| 412 | ar->pm1.evt.en = val; |
Gerd Hoffmann | 62aeb0f | 2012-02-23 13:45:24 +0100 | [diff] [blame] | 413 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, |
| 414 | val & ACPI_BITMASK_RT_CLOCK_ENABLE); |
Gerd Hoffmann | 6595abc | 2012-02-23 13:45:25 +0100 | [diff] [blame] | 415 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, |
| 416 | val & ACPI_BITMASK_TIMER_ENABLE); |
Gerd Hoffmann | 8283c4f | 2012-02-23 13:45:18 +0100 | [diff] [blame] | 417 | } |
| 418 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 419 | void acpi_pm1_evt_power_down(ACPIREGS *ar) |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 420 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 421 | if (ar->pm1.evt.en & ACPI_BITMASK_POWER_BUTTON_ENABLE) { |
| 422 | ar->pm1.evt.sts |= ACPI_BITMASK_POWER_BUTTON_STATUS; |
| 423 | ar->tmr.update_sci(ar); |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 424 | } |
| 425 | } |
| 426 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 427 | void acpi_pm1_evt_reset(ACPIREGS *ar) |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 428 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 429 | ar->pm1.evt.sts = 0; |
| 430 | ar->pm1.evt.en = 0; |
Gerd Hoffmann | 62aeb0f | 2012-02-23 13:45:24 +0100 | [diff] [blame] | 431 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, 0); |
Gerd Hoffmann | 6595abc | 2012-02-23 13:45:25 +0100 | [diff] [blame] | 432 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, 0); |
Isaku Yamahata | 04dc308 | 2011-03-25 19:54:39 +0900 | [diff] [blame] | 433 | } |
| 434 | |
Gerd Hoffmann | b5a7c02 | 2012-11-22 13:25:10 +0100 | [diff] [blame] | 435 | static uint64_t acpi_pm_evt_read(void *opaque, hwaddr addr, unsigned width) |
| 436 | { |
| 437 | ACPIREGS *ar = opaque; |
| 438 | switch (addr) { |
| 439 | case 0: |
| 440 | return acpi_pm1_evt_get_sts(ar); |
| 441 | case 2: |
| 442 | return ar->pm1.evt.en; |
| 443 | default: |
| 444 | return 0; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | static void acpi_pm_evt_write(void *opaque, hwaddr addr, uint64_t val, |
| 449 | unsigned width) |
| 450 | { |
| 451 | ACPIREGS *ar = opaque; |
| 452 | switch (addr) { |
| 453 | case 0: |
| 454 | acpi_pm1_evt_write_sts(ar, val); |
| 455 | ar->pm1.evt.update_sci(ar); |
| 456 | break; |
| 457 | case 2: |
| 458 | acpi_pm1_evt_write_en(ar, val); |
| 459 | ar->pm1.evt.update_sci(ar); |
| 460 | break; |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | static const MemoryRegionOps acpi_pm_evt_ops = { |
| 465 | .read = acpi_pm_evt_read, |
| 466 | .write = acpi_pm_evt_write, |
| 467 | .valid.min_access_size = 2, |
| 468 | .valid.max_access_size = 2, |
| 469 | .endianness = DEVICE_LITTLE_ENDIAN, |
| 470 | }; |
| 471 | |
| 472 | void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, |
| 473 | MemoryRegion *parent) |
| 474 | { |
| 475 | ar->pm1.evt.update_sci = update_sci; |
Paolo Bonzini | 64bde0f | 2013-06-06 21:25:08 -0400 | [diff] [blame] | 476 | memory_region_init_io(&ar->pm1.evt.io, memory_region_owner(parent), |
| 477 | &acpi_pm_evt_ops, ar, "acpi-evt", 4); |
Gerd Hoffmann | b5a7c02 | 2012-11-22 13:25:10 +0100 | [diff] [blame] | 478 | memory_region_add_subregion(parent, 0, &ar->pm1.evt.io); |
| 479 | } |
| 480 | |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 481 | /* ACPI PM_TMR */ |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 482 | void acpi_pm_tmr_update(ACPIREGS *ar, bool enable) |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 483 | { |
| 484 | int64_t expire_time; |
| 485 | |
| 486 | /* schedule a timer interruption if needed */ |
| 487 | if (enable) { |
Rutuja Shah | 73bcb24 | 2016-03-21 21:32:30 +0530 | [diff] [blame] | 488 | expire_time = muldiv64(ar->tmr.overflow_time, NANOSECONDS_PER_SECOND, |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 489 | PM_TIMER_FREQUENCY); |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 490 | timer_mod(ar->tmr.timer, expire_time); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 491 | } else { |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 492 | timer_del(ar->tmr.timer); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 493 | } |
| 494 | } |
| 495 | |
Paolo Bonzini | 87776ab | 2016-03-15 15:36:13 +0100 | [diff] [blame] | 496 | static inline int64_t acpi_pm_tmr_get_clock(void) |
| 497 | { |
| 498 | return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), PM_TIMER_FREQUENCY, |
| 499 | NANOSECONDS_PER_SECOND); |
| 500 | } |
| 501 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 502 | void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar) |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 503 | { |
| 504 | int64_t d = acpi_pm_tmr_get_clock(); |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 505 | ar->tmr.overflow_time = (d + 0x800000LL) & ~0x7fffffLL; |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 506 | } |
| 507 | |
Gerd Hoffmann | 77d58b1 | 2012-11-22 12:12:30 +0100 | [diff] [blame] | 508 | static uint32_t acpi_pm_tmr_get(ACPIREGS *ar) |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 509 | { |
Dong Xu Wang | 3a93113 | 2011-11-29 16:52:38 +0800 | [diff] [blame] | 510 | uint32_t d = acpi_pm_tmr_get_clock(); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 511 | return d & 0xffffff; |
| 512 | } |
| 513 | |
| 514 | static void acpi_pm_tmr_timer(void *opaque) |
| 515 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 516 | ACPIREGS *ar = opaque; |
Gerd Hoffmann | 6595abc | 2012-02-23 13:45:25 +0100 | [diff] [blame] | 517 | qemu_system_wakeup_request(QEMU_WAKEUP_REASON_PMTIMER); |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 518 | ar->tmr.update_sci(ar); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 519 | } |
| 520 | |
Gerd Hoffmann | 77d58b1 | 2012-11-22 12:12:30 +0100 | [diff] [blame] | 521 | static uint64_t acpi_pm_tmr_read(void *opaque, hwaddr addr, unsigned width) |
| 522 | { |
| 523 | return acpi_pm_tmr_get(opaque); |
| 524 | } |
| 525 | |
Gerd Hoffmann | 2d3b989 | 2013-05-14 14:29:04 +0200 | [diff] [blame] | 526 | static void acpi_pm_tmr_write(void *opaque, hwaddr addr, uint64_t val, |
| 527 | unsigned width) |
| 528 | { |
| 529 | /* nothing */ |
| 530 | } |
| 531 | |
Gerd Hoffmann | 77d58b1 | 2012-11-22 12:12:30 +0100 | [diff] [blame] | 532 | static const MemoryRegionOps acpi_pm_tmr_ops = { |
| 533 | .read = acpi_pm_tmr_read, |
Gerd Hoffmann | 2d3b989 | 2013-05-14 14:29:04 +0200 | [diff] [blame] | 534 | .write = acpi_pm_tmr_write, |
Gerd Hoffmann | 77d58b1 | 2012-11-22 12:12:30 +0100 | [diff] [blame] | 535 | .valid.min_access_size = 4, |
| 536 | .valid.max_access_size = 4, |
| 537 | .endianness = DEVICE_LITTLE_ENDIAN, |
| 538 | }; |
| 539 | |
| 540 | void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, |
| 541 | MemoryRegion *parent) |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 542 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 543 | ar->tmr.update_sci = update_sci; |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 544 | ar->tmr.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, acpi_pm_tmr_timer, ar); |
Paolo Bonzini | 64bde0f | 2013-06-06 21:25:08 -0400 | [diff] [blame] | 545 | memory_region_init_io(&ar->tmr.io, memory_region_owner(parent), |
| 546 | &acpi_pm_tmr_ops, ar, "acpi-tmr", 4); |
Gerd Hoffmann | 77d58b1 | 2012-11-22 12:12:30 +0100 | [diff] [blame] | 547 | memory_region_add_subregion(parent, 8, &ar->tmr.io); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 548 | } |
| 549 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 550 | void acpi_pm_tmr_reset(ACPIREGS *ar) |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 551 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 552 | ar->tmr.overflow_time = 0; |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 553 | timer_del(ar->tmr.timer); |
Isaku Yamahata | a54d41a | 2011-03-25 19:54:38 +0900 | [diff] [blame] | 554 | } |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 555 | |
| 556 | /* ACPI PM1aCNT */ |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 557 | static void acpi_pm1_cnt_write(ACPIREGS *ar, uint16_t val) |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 558 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 559 | ar->pm1.cnt.cnt = val & ~(ACPI_BITMASK_SLEEP_ENABLE); |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 560 | |
| 561 | if (val & ACPI_BITMASK_SLEEP_ENABLE) { |
| 562 | /* change suspend type */ |
| 563 | uint16_t sus_typ = (val >> 10) & 7; |
| 564 | switch(sus_typ) { |
| 565 | case 0: /* soft power off */ |
Eric Blake | cf83f14 | 2017-05-15 16:41:13 -0500 | [diff] [blame] | 566 | qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 567 | break; |
| 568 | case 1: |
Gerd Hoffmann | da98c8e | 2012-02-23 13:45:20 +0100 | [diff] [blame] | 569 | qemu_system_suspend_request(); |
| 570 | break; |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 571 | default: |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 572 | if (sus_typ == ar->pm1.cnt.s4_val) { /* S4 request */ |
Wenchao Xia | 2ea4100 | 2014-06-18 08:43:39 +0200 | [diff] [blame] | 573 | qapi_event_send_suspend_disk(&error_abort); |
Eric Blake | cf83f14 | 2017-05-15 16:41:13 -0500 | [diff] [blame] | 574 | qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); |
Gleb Natapov | 459ae5e | 2012-06-04 14:31:55 +0300 | [diff] [blame] | 575 | } |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 576 | break; |
| 577 | } |
| 578 | } |
| 579 | } |
| 580 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 581 | void acpi_pm1_cnt_update(ACPIREGS *ar, |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 582 | bool sci_enable, bool sci_disable) |
| 583 | { |
| 584 | /* ACPI specs 3.0, 4.7.2.5 */ |
| 585 | if (sci_enable) { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 586 | ar->pm1.cnt.cnt |= ACPI_BITMASK_SCI_ENABLE; |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 587 | } else if (sci_disable) { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 588 | ar->pm1.cnt.cnt &= ~ACPI_BITMASK_SCI_ENABLE; |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 589 | } |
| 590 | } |
| 591 | |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 592 | static uint64_t acpi_pm_cnt_read(void *opaque, hwaddr addr, unsigned width) |
| 593 | { |
| 594 | ACPIREGS *ar = opaque; |
| 595 | return ar->pm1.cnt.cnt; |
| 596 | } |
| 597 | |
| 598 | static void acpi_pm_cnt_write(void *opaque, hwaddr addr, uint64_t val, |
| 599 | unsigned width) |
| 600 | { |
| 601 | acpi_pm1_cnt_write(opaque, val); |
| 602 | } |
| 603 | |
| 604 | static const MemoryRegionOps acpi_pm_cnt_ops = { |
| 605 | .read = acpi_pm_cnt_read, |
| 606 | .write = acpi_pm_cnt_write, |
| 607 | .valid.min_access_size = 2, |
| 608 | .valid.max_access_size = 2, |
| 609 | .endianness = DEVICE_LITTLE_ENDIAN, |
| 610 | }; |
| 611 | |
Laszlo Ersek | 9a10bbb | 2015-04-29 15:20:14 +0200 | [diff] [blame] | 612 | void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, |
| 613 | bool disable_s3, bool disable_s4, uint8_t s4_val) |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 614 | { |
Laszlo Ersek | e3845e7 | 2015-04-29 15:20:15 +0200 | [diff] [blame] | 615 | FWCfgState *fw_cfg; |
| 616 | |
Bruce Rogers | 560e639 | 2013-04-02 12:41:40 -0600 | [diff] [blame] | 617 | ar->pm1.cnt.s4_val = s4_val; |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 618 | ar->wakeup.notify = acpi_notify_wakeup; |
| 619 | qemu_register_wakeup_notifier(&ar->wakeup); |
Paolo Bonzini | 64bde0f | 2013-06-06 21:25:08 -0400 | [diff] [blame] | 620 | memory_region_init_io(&ar->pm1.cnt.io, memory_region_owner(parent), |
| 621 | &acpi_pm_cnt_ops, ar, "acpi-cnt", 2); |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 622 | memory_region_add_subregion(parent, 4, &ar->pm1.cnt.io); |
Laszlo Ersek | e3845e7 | 2015-04-29 15:20:15 +0200 | [diff] [blame] | 623 | |
| 624 | fw_cfg = fw_cfg_find(); |
| 625 | if (fw_cfg) { |
| 626 | uint8_t suspend[6] = {128, 0, 0, 129, 128, 128}; |
| 627 | suspend[3] = 1 | ((!disable_s3) << 7); |
| 628 | suspend[4] = s4_val | ((!disable_s4) << 7); |
| 629 | |
| 630 | fw_cfg_add_file(fw_cfg, "etc/system-states", g_memdup(suspend, 6), 6); |
| 631 | } |
Gerd Hoffmann | afafe4b | 2012-11-22 13:17:57 +0100 | [diff] [blame] | 632 | } |
| 633 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 634 | void acpi_pm1_cnt_reset(ACPIREGS *ar) |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 635 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 636 | ar->pm1.cnt.cnt = 0; |
Isaku Yamahata | eaba51c | 2011-03-25 19:54:40 +0900 | [diff] [blame] | 637 | } |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 638 | |
| 639 | /* ACPI GPE */ |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 640 | void acpi_gpe_init(ACPIREGS *ar, uint8_t len) |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 641 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 642 | ar->gpe.len = len; |
Michael S. Tsirkin | d9a3b33 | 2015-11-19 15:14:07 +0200 | [diff] [blame] | 643 | /* Only first len / 2 bytes are ever used, |
| 644 | * but the caller in ich9.c migrates full len bytes. |
| 645 | * TODO: fix ich9.c and drop the extra allocation. |
| 646 | */ |
| 647 | ar->gpe.sts = g_malloc0(len); |
| 648 | ar->gpe.en = g_malloc0(len); |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 649 | } |
| 650 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 651 | void acpi_gpe_reset(ACPIREGS *ar) |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 652 | { |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 653 | memset(ar->gpe.sts, 0, ar->gpe.len / 2); |
| 654 | memset(ar->gpe.en, 0, ar->gpe.len / 2); |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 655 | } |
| 656 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 657 | static uint8_t *acpi_gpe_ioport_get_ptr(ACPIREGS *ar, uint32_t addr) |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 658 | { |
| 659 | uint8_t *cur = NULL; |
| 660 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 661 | if (addr < ar->gpe.len / 2) { |
| 662 | cur = ar->gpe.sts + addr; |
| 663 | } else if (addr < ar->gpe.len) { |
| 664 | cur = ar->gpe.en + addr - ar->gpe.len / 2; |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 665 | } else { |
| 666 | abort(); |
| 667 | } |
| 668 | |
| 669 | return cur; |
| 670 | } |
| 671 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 672 | void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val) |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 673 | { |
| 674 | uint8_t *cur; |
| 675 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 676 | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
| 677 | if (addr < ar->gpe.len / 2) { |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 678 | /* GPE_STS */ |
| 679 | *cur = (*cur) & ~val; |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 680 | } else if (addr < ar->gpe.len) { |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 681 | /* GPE_EN */ |
| 682 | *cur = val; |
| 683 | } else { |
| 684 | abort(); |
| 685 | } |
| 686 | } |
| 687 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 688 | uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr) |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 689 | { |
| 690 | uint8_t *cur; |
| 691 | uint32_t val; |
| 692 | |
Gerd Hoffmann | 355bf2e | 2012-02-23 13:45:16 +0100 | [diff] [blame] | 693 | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
Isaku Yamahata | 23910d3 | 2011-03-25 19:54:41 +0900 | [diff] [blame] | 694 | val = 0; |
| 695 | if (cur != NULL) { |
| 696 | val = *cur; |
| 697 | } |
| 698 | |
| 699 | return val; |
| 700 | } |
Igor Mammedov | 0631350 | 2013-12-13 17:22:07 +0100 | [diff] [blame] | 701 | |
Zhu Guihua | ca9b46b | 2015-05-13 17:21:36 +0800 | [diff] [blame] | 702 | void acpi_send_gpe_event(ACPIREGS *ar, qemu_irq irq, |
Igor Mammedov | eaf23bf | 2016-05-31 11:57:57 +0200 | [diff] [blame] | 703 | AcpiEventStatusBits status) |
Zhu Guihua | ca9b46b | 2015-05-13 17:21:36 +0800 | [diff] [blame] | 704 | { |
| 705 | ar->gpe.sts[0] |= status; |
| 706 | acpi_update_sci(ar, irq); |
| 707 | } |
| 708 | |
Igor Mammedov | 0631350 | 2013-12-13 17:22:07 +0100 | [diff] [blame] | 709 | void acpi_update_sci(ACPIREGS *regs, qemu_irq irq) |
| 710 | { |
| 711 | int sci_level, pm1a_sts; |
| 712 | |
| 713 | pm1a_sts = acpi_pm1_evt_get_sts(regs); |
| 714 | |
| 715 | sci_level = ((pm1a_sts & |
| 716 | regs->pm1.evt.en & ACPI_BITMASK_PM1_COMMON_ENABLED) != 0) || |
| 717 | ((regs->gpe.sts[0] & regs->gpe.en[0]) != 0); |
| 718 | |
| 719 | qemu_set_irq(irq, sci_level); |
| 720 | |
| 721 | /* schedule a timer interruption if needed */ |
| 722 | acpi_pm_tmr_update(regs, |
| 723 | (regs->pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) && |
| 724 | !(pm1a_sts & ACPI_BITMASK_TIMER_STATUS)); |
| 725 | } |