1 /* Support for generating ACPI tables and passing them to Guests 2 * 3 * ARM virt ACPI generation 4 * 5 * Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net> 6 * Copyright (C) 2006 Fabrice Bellard 7 * Copyright (C) 2013 Red Hat Inc 8 * 9 * Author: Michael S. Tsirkin <mst@redhat.com> 10 * 11 * Copyright (c) 2015 HUAWEI TECHNOLOGIES CO.,LTD. 12 * 13 * Author: Shannon Zhao <zhaoshenglong@huawei.com> 14 * 15 * This program is free software; you can redistribute it and/or modify 16 * it under the terms of the GNU General Public License as published by 17 * the Free Software Foundation; either version 2 of the License, or 18 * (at your option) any later version. 19 20 * This program is distributed in the hope that it will be useful, 21 * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 * GNU General Public License for more details. 24 25 * You should have received a copy of the GNU General Public License along 26 * with this program; if not, see <http://www.gnu.org/licenses/>. 27 */ 28 29 #include "qemu/osdep.h" 30 #include "qapi/error.h" 31 #include "qemu/bitmap.h" 32 #include "trace.h" 33 #include "qom/cpu.h" 34 #include "target/arm/cpu.h" 35 #include "hw/acpi/acpi-defs.h" 36 #include "hw/acpi/acpi.h" 37 #include "hw/nvram/fw_cfg.h" 38 #include "hw/acpi/bios-linker-loader.h" 39 #include "hw/hw.h" 40 #include "hw/acpi/aml-build.h" 41 #include "hw/acpi/utils.h" 42 #include "hw/acpi/pci.h" 43 #include "hw/pci/pcie_host.h" 44 #include "hw/pci/pci.h" 45 #include "hw/arm/virt.h" 46 #include "sysemu/numa.h" 47 #include "sysemu/reset.h" 48 #include "kvm_arm.h" 49 50 #define ARM_SPI_BASE 32 51 #define ACPI_POWER_BUTTON_DEVICE "PWRB" 52 53 static void acpi_dsdt_add_cpus(Aml *scope, int smp_cpus) 54 { 55 uint16_t i; 56 57 for (i = 0; i < smp_cpus; i++) { 58 Aml *dev = aml_device("C%.03X", i); 59 aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007"))); 60 aml_append(dev, aml_name_decl("_UID", aml_int(i))); 61 aml_append(scope, dev); 62 } 63 } 64 65 static void acpi_dsdt_add_uart(Aml *scope, const MemMapEntry *uart_memmap, 66 uint32_t uart_irq) 67 { 68 Aml *dev = aml_device("COM0"); 69 aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0011"))); 70 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 71 72 Aml *crs = aml_resource_template(); 73 aml_append(crs, aml_memory32_fixed(uart_memmap->base, 74 uart_memmap->size, AML_READ_WRITE)); 75 aml_append(crs, 76 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 77 AML_EXCLUSIVE, &uart_irq, 1)); 78 aml_append(dev, aml_name_decl("_CRS", crs)); 79 80 /* The _ADR entry is used to link this device to the UART described 81 * in the SPCR table, i.e. SPCR.base_address.address == _ADR. 82 */ 83 aml_append(dev, aml_name_decl("_ADR", aml_int(uart_memmap->base))); 84 85 aml_append(scope, dev); 86 } 87 88 static void acpi_dsdt_add_fw_cfg(Aml *scope, const MemMapEntry *fw_cfg_memmap) 89 { 90 Aml *dev = aml_device("FWCF"); 91 aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002"))); 92 /* device present, functioning, decoding, not shown in UI */ 93 aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); 94 aml_append(dev, aml_name_decl("_CCA", aml_int(1))); 95 96 Aml *crs = aml_resource_template(); 97 aml_append(crs, aml_memory32_fixed(fw_cfg_memmap->base, 98 fw_cfg_memmap->size, AML_READ_WRITE)); 99 aml_append(dev, aml_name_decl("_CRS", crs)); 100 aml_append(scope, dev); 101 } 102 103 static void acpi_dsdt_add_flash(Aml *scope, const MemMapEntry *flash_memmap) 104 { 105 Aml *dev, *crs; 106 hwaddr base = flash_memmap->base; 107 hwaddr size = flash_memmap->size / 2; 108 109 dev = aml_device("FLS0"); 110 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); 111 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 112 113 crs = aml_resource_template(); 114 aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); 115 aml_append(dev, aml_name_decl("_CRS", crs)); 116 aml_append(scope, dev); 117 118 dev = aml_device("FLS1"); 119 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); 120 aml_append(dev, aml_name_decl("_UID", aml_int(1))); 121 crs = aml_resource_template(); 122 aml_append(crs, aml_memory32_fixed(base + size, size, AML_READ_WRITE)); 123 aml_append(dev, aml_name_decl("_CRS", crs)); 124 aml_append(scope, dev); 125 } 126 127 static void acpi_dsdt_add_virtio(Aml *scope, 128 const MemMapEntry *virtio_mmio_memmap, 129 uint32_t mmio_irq, int num) 130 { 131 hwaddr base = virtio_mmio_memmap->base; 132 hwaddr size = virtio_mmio_memmap->size; 133 int i; 134 135 for (i = 0; i < num; i++) { 136 uint32_t irq = mmio_irq + i; 137 Aml *dev = aml_device("VR%02u", i); 138 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005"))); 139 aml_append(dev, aml_name_decl("_UID", aml_int(i))); 140 aml_append(dev, aml_name_decl("_CCA", aml_int(1))); 141 142 Aml *crs = aml_resource_template(); 143 aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); 144 aml_append(crs, 145 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 146 AML_EXCLUSIVE, &irq, 1)); 147 aml_append(dev, aml_name_decl("_CRS", crs)); 148 aml_append(scope, dev); 149 base += size; 150 } 151 } 152 153 static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, 154 uint32_t irq, bool use_highmem, bool highmem_ecam) 155 { 156 int ecam_id = VIRT_ECAM_ID(highmem_ecam); 157 Aml *method, *crs, *ifctx, *UUID, *ifctx1, *elsectx, *buf; 158 int i, bus_no; 159 hwaddr base_mmio = memmap[VIRT_PCIE_MMIO].base; 160 hwaddr size_mmio = memmap[VIRT_PCIE_MMIO].size; 161 hwaddr base_pio = memmap[VIRT_PCIE_PIO].base; 162 hwaddr size_pio = memmap[VIRT_PCIE_PIO].size; 163 hwaddr base_ecam = memmap[ecam_id].base; 164 hwaddr size_ecam = memmap[ecam_id].size; 165 int nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; 166 167 Aml *dev = aml_device("%s", "PCI0"); 168 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A08"))); 169 aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03"))); 170 aml_append(dev, aml_name_decl("_SEG", aml_int(0))); 171 aml_append(dev, aml_name_decl("_BBN", aml_int(0))); 172 aml_append(dev, aml_name_decl("_ADR", aml_int(0))); 173 aml_append(dev, aml_name_decl("_UID", aml_string("PCI0"))); 174 aml_append(dev, aml_name_decl("_STR", aml_unicode("PCIe 0 Device"))); 175 aml_append(dev, aml_name_decl("_CCA", aml_int(1))); 176 177 /* Declare the PCI Routing Table. */ 178 Aml *rt_pkg = aml_varpackage(nr_pcie_buses * PCI_NUM_PINS); 179 for (bus_no = 0; bus_no < nr_pcie_buses; bus_no++) { 180 for (i = 0; i < PCI_NUM_PINS; i++) { 181 int gsi = (i + bus_no) % PCI_NUM_PINS; 182 Aml *pkg = aml_package(4); 183 aml_append(pkg, aml_int((bus_no << 16) | 0xFFFF)); 184 aml_append(pkg, aml_int(i)); 185 aml_append(pkg, aml_name("GSI%d", gsi)); 186 aml_append(pkg, aml_int(0)); 187 aml_append(rt_pkg, pkg); 188 } 189 } 190 aml_append(dev, aml_name_decl("_PRT", rt_pkg)); 191 192 /* Create GSI link device */ 193 for (i = 0; i < PCI_NUM_PINS; i++) { 194 uint32_t irqs = irq + i; 195 Aml *dev_gsi = aml_device("GSI%d", i); 196 aml_append(dev_gsi, aml_name_decl("_HID", aml_string("PNP0C0F"))); 197 aml_append(dev_gsi, aml_name_decl("_UID", aml_int(0))); 198 crs = aml_resource_template(); 199 aml_append(crs, 200 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 201 AML_EXCLUSIVE, &irqs, 1)); 202 aml_append(dev_gsi, aml_name_decl("_PRS", crs)); 203 crs = aml_resource_template(); 204 aml_append(crs, 205 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 206 AML_EXCLUSIVE, &irqs, 1)); 207 aml_append(dev_gsi, aml_name_decl("_CRS", crs)); 208 method = aml_method("_SRS", 1, AML_NOTSERIALIZED); 209 aml_append(dev_gsi, method); 210 aml_append(dev, dev_gsi); 211 } 212 213 method = aml_method("_CBA", 0, AML_NOTSERIALIZED); 214 aml_append(method, aml_return(aml_int(base_ecam))); 215 aml_append(dev, method); 216 217 method = aml_method("_CRS", 0, AML_NOTSERIALIZED); 218 Aml *rbuf = aml_resource_template(); 219 aml_append(rbuf, 220 aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE, 221 0x0000, 0x0000, nr_pcie_buses - 1, 0x0000, 222 nr_pcie_buses)); 223 aml_append(rbuf, 224 aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, 225 AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, base_mmio, 226 base_mmio + size_mmio - 1, 0x0000, size_mmio)); 227 aml_append(rbuf, 228 aml_dword_io(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE, 229 AML_ENTIRE_RANGE, 0x0000, 0x0000, size_pio - 1, base_pio, 230 size_pio)); 231 232 if (use_highmem) { 233 hwaddr base_mmio_high = memmap[VIRT_HIGH_PCIE_MMIO].base; 234 hwaddr size_mmio_high = memmap[VIRT_HIGH_PCIE_MMIO].size; 235 236 aml_append(rbuf, 237 aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, 238 AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, 239 base_mmio_high, 240 base_mmio_high + size_mmio_high - 1, 0x0000, 241 size_mmio_high)); 242 } 243 244 aml_append(method, aml_name_decl("RBUF", rbuf)); 245 aml_append(method, aml_return(rbuf)); 246 aml_append(dev, method); 247 248 /* Declare an _OSC (OS Control Handoff) method */ 249 aml_append(dev, aml_name_decl("SUPP", aml_int(0))); 250 aml_append(dev, aml_name_decl("CTRL", aml_int(0))); 251 method = aml_method("_OSC", 4, AML_NOTSERIALIZED); 252 aml_append(method, 253 aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1")); 254 255 /* PCI Firmware Specification 3.0 256 * 4.5.1. _OSC Interface for PCI Host Bridge Devices 257 * The _OSC interface for a PCI/PCI-X/PCI Express hierarchy is 258 * identified by the Universal Unique IDentifier (UUID) 259 * 33DB4D5B-1FF7-401C-9657-7441C03DD766 260 */ 261 UUID = aml_touuid("33DB4D5B-1FF7-401C-9657-7441C03DD766"); 262 ifctx = aml_if(aml_equal(aml_arg(0), UUID)); 263 aml_append(ifctx, 264 aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2")); 265 aml_append(ifctx, 266 aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3")); 267 aml_append(ifctx, aml_store(aml_name("CDW2"), aml_name("SUPP"))); 268 aml_append(ifctx, aml_store(aml_name("CDW3"), aml_name("CTRL"))); 269 aml_append(ifctx, aml_store(aml_and(aml_name("CTRL"), aml_int(0x1D), NULL), 270 aml_name("CTRL"))); 271 272 ifctx1 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(0x1)))); 273 aml_append(ifctx1, aml_store(aml_or(aml_name("CDW1"), aml_int(0x08), NULL), 274 aml_name("CDW1"))); 275 aml_append(ifctx, ifctx1); 276 277 ifctx1 = aml_if(aml_lnot(aml_equal(aml_name("CDW3"), aml_name("CTRL")))); 278 aml_append(ifctx1, aml_store(aml_or(aml_name("CDW1"), aml_int(0x10), NULL), 279 aml_name("CDW1"))); 280 aml_append(ifctx, ifctx1); 281 282 aml_append(ifctx, aml_store(aml_name("CTRL"), aml_name("CDW3"))); 283 aml_append(ifctx, aml_return(aml_arg(3))); 284 aml_append(method, ifctx); 285 286 elsectx = aml_else(); 287 aml_append(elsectx, aml_store(aml_or(aml_name("CDW1"), aml_int(4), NULL), 288 aml_name("CDW1"))); 289 aml_append(elsectx, aml_return(aml_arg(3))); 290 aml_append(method, elsectx); 291 aml_append(dev, method); 292 293 method = aml_method("_DSM", 4, AML_NOTSERIALIZED); 294 295 /* PCI Firmware Specification 3.0 296 * 4.6.1. _DSM for PCI Express Slot Information 297 * The UUID in _DSM in this context is 298 * {E5C937D0-3553-4D7A-9117-EA4D19C3434D} 299 */ 300 UUID = aml_touuid("E5C937D0-3553-4D7A-9117-EA4D19C3434D"); 301 ifctx = aml_if(aml_equal(aml_arg(0), UUID)); 302 ifctx1 = aml_if(aml_equal(aml_arg(2), aml_int(0))); 303 uint8_t byte_list[1] = {1}; 304 buf = aml_buffer(1, byte_list); 305 aml_append(ifctx1, aml_return(buf)); 306 aml_append(ifctx, ifctx1); 307 aml_append(method, ifctx); 308 309 byte_list[0] = 0; 310 buf = aml_buffer(1, byte_list); 311 aml_append(method, aml_return(buf)); 312 aml_append(dev, method); 313 314 Aml *dev_rp0 = aml_device("%s", "RP0"); 315 aml_append(dev_rp0, aml_name_decl("_ADR", aml_int(0))); 316 aml_append(dev, dev_rp0); 317 318 Aml *dev_res0 = aml_device("%s", "RES0"); 319 aml_append(dev_res0, aml_name_decl("_HID", aml_string("PNP0C02"))); 320 crs = aml_resource_template(); 321 aml_append(crs, 322 aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, 323 AML_NON_CACHEABLE, AML_READ_WRITE, 0x0000, base_ecam, 324 base_ecam + size_ecam - 1, 0x0000, size_ecam)); 325 aml_append(dev_res0, aml_name_decl("_CRS", crs)); 326 aml_append(dev, dev_res0); 327 aml_append(scope, dev); 328 } 329 330 static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, 331 uint32_t gpio_irq) 332 { 333 Aml *dev = aml_device("GPO0"); 334 aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0061"))); 335 aml_append(dev, aml_name_decl("_ADR", aml_int(0))); 336 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 337 338 Aml *crs = aml_resource_template(); 339 aml_append(crs, aml_memory32_fixed(gpio_memmap->base, gpio_memmap->size, 340 AML_READ_WRITE)); 341 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 342 AML_EXCLUSIVE, &gpio_irq, 1)); 343 aml_append(dev, aml_name_decl("_CRS", crs)); 344 345 Aml *aei = aml_resource_template(); 346 /* Pin 3 for power button */ 347 const uint32_t pin_list[1] = {3}; 348 aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH, 349 AML_EXCLUSIVE, AML_PULL_UP, 0, pin_list, 1, 350 "GPO0", NULL, 0)); 351 aml_append(dev, aml_name_decl("_AEI", aei)); 352 353 /* _E03 is handle for power button */ 354 Aml *method = aml_method("_E03", 0, AML_NOTSERIALIZED); 355 aml_append(method, aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE), 356 aml_int(0x80))); 357 aml_append(dev, method); 358 aml_append(scope, dev); 359 } 360 361 static void acpi_dsdt_add_power_button(Aml *scope) 362 { 363 Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE); 364 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C"))); 365 aml_append(dev, aml_name_decl("_ADR", aml_int(0))); 366 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 367 aml_append(scope, dev); 368 } 369 370 static void 371 build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 372 { 373 int nb_nodes, iort_start = table_data->len; 374 AcpiIortIdMapping *idmap; 375 AcpiIortItsGroup *its; 376 AcpiIortTable *iort; 377 AcpiIortSmmu3 *smmu; 378 size_t node_size, iort_node_offset, iort_length, smmu_offset = 0; 379 AcpiIortRC *rc; 380 381 iort = acpi_data_push(table_data, sizeof(*iort)); 382 383 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 384 nb_nodes = 3; /* RC, ITS, SMMUv3 */ 385 } else { 386 nb_nodes = 2; /* RC, ITS */ 387 } 388 389 iort_length = sizeof(*iort); 390 iort->node_count = cpu_to_le32(nb_nodes); 391 /* 392 * Use a copy in case table_data->data moves during acpi_data_push 393 * operations. 394 */ 395 iort_node_offset = sizeof(*iort); 396 iort->node_offset = cpu_to_le32(iort_node_offset); 397 398 /* ITS group node */ 399 node_size = sizeof(*its) + sizeof(uint32_t); 400 iort_length += node_size; 401 its = acpi_data_push(table_data, node_size); 402 403 its->type = ACPI_IORT_NODE_ITS_GROUP; 404 its->length = cpu_to_le16(node_size); 405 its->its_count = cpu_to_le32(1); 406 its->identifiers[0] = 0; /* MADT translation_id */ 407 408 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 409 int irq = vms->irqmap[VIRT_SMMU] + ARM_SPI_BASE; 410 411 /* SMMUv3 node */ 412 smmu_offset = iort_node_offset + node_size; 413 node_size = sizeof(*smmu) + sizeof(*idmap); 414 iort_length += node_size; 415 smmu = acpi_data_push(table_data, node_size); 416 417 smmu->type = ACPI_IORT_NODE_SMMU_V3; 418 smmu->length = cpu_to_le16(node_size); 419 smmu->mapping_count = cpu_to_le32(1); 420 smmu->mapping_offset = cpu_to_le32(sizeof(*smmu)); 421 smmu->base_address = cpu_to_le64(vms->memmap[VIRT_SMMU].base); 422 smmu->flags = cpu_to_le32(ACPI_IORT_SMMU_V3_COHACC_OVERRIDE); 423 smmu->event_gsiv = cpu_to_le32(irq); 424 smmu->pri_gsiv = cpu_to_le32(irq + 1); 425 smmu->gerr_gsiv = cpu_to_le32(irq + 2); 426 smmu->sync_gsiv = cpu_to_le32(irq + 3); 427 428 /* Identity RID mapping covering the whole input RID range */ 429 idmap = &smmu->id_mapping_array[0]; 430 idmap->input_base = 0; 431 idmap->id_count = cpu_to_le32(0xFFFF); 432 idmap->output_base = 0; 433 /* output IORT node is the ITS group node (the first node) */ 434 idmap->output_reference = cpu_to_le32(iort_node_offset); 435 } 436 437 /* Root Complex Node */ 438 node_size = sizeof(*rc) + sizeof(*idmap); 439 iort_length += node_size; 440 rc = acpi_data_push(table_data, node_size); 441 442 rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX; 443 rc->length = cpu_to_le16(node_size); 444 rc->mapping_count = cpu_to_le32(1); 445 rc->mapping_offset = cpu_to_le32(sizeof(*rc)); 446 447 /* fully coherent device */ 448 rc->memory_properties.cache_coherency = cpu_to_le32(1); 449 rc->memory_properties.memory_flags = 0x3; /* CCA = CPM = DCAS = 1 */ 450 rc->pci_segment_number = 0; /* MCFG pci_segment */ 451 452 /* Identity RID mapping covering the whole input RID range */ 453 idmap = &rc->id_mapping_array[0]; 454 idmap->input_base = 0; 455 idmap->id_count = cpu_to_le32(0xFFFF); 456 idmap->output_base = 0; 457 458 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 459 /* output IORT node is the smmuv3 node */ 460 idmap->output_reference = cpu_to_le32(smmu_offset); 461 } else { 462 /* output IORT node is the ITS group node (the first node) */ 463 idmap->output_reference = cpu_to_le32(iort_node_offset); 464 } 465 466 /* 467 * Update the pointer address in case table_data->data moves during above 468 * acpi_data_push operations. 469 */ 470 iort = (AcpiIortTable *)(table_data->data + iort_start); 471 iort->length = cpu_to_le32(iort_length); 472 473 build_header(linker, table_data, (void *)(table_data->data + iort_start), 474 "IORT", table_data->len - iort_start, 0, NULL, NULL); 475 } 476 477 static void 478 build_spcr(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 479 { 480 AcpiSerialPortConsoleRedirection *spcr; 481 const MemMapEntry *uart_memmap = &vms->memmap[VIRT_UART]; 482 int irq = vms->irqmap[VIRT_UART] + ARM_SPI_BASE; 483 int spcr_start = table_data->len; 484 485 spcr = acpi_data_push(table_data, sizeof(*spcr)); 486 487 spcr->interface_type = 0x3; /* ARM PL011 UART */ 488 489 spcr->base_address.space_id = AML_SYSTEM_MEMORY; 490 spcr->base_address.bit_width = 8; 491 spcr->base_address.bit_offset = 0; 492 spcr->base_address.access_width = 1; 493 spcr->base_address.address = cpu_to_le64(uart_memmap->base); 494 495 spcr->interrupt_types = (1 << 3); /* Bit[3] ARMH GIC interrupt */ 496 spcr->gsi = cpu_to_le32(irq); /* Global System Interrupt */ 497 498 spcr->baud = 3; /* Baud Rate: 3 = 9600 */ 499 spcr->parity = 0; /* No Parity */ 500 spcr->stopbits = 1; /* 1 Stop bit */ 501 spcr->flowctrl = (1 << 1); /* Bit[1] = RTS/CTS hardware flow control */ 502 spcr->term_type = 0; /* Terminal Type: 0 = VT100 */ 503 504 spcr->pci_device_id = 0xffff; /* PCI Device ID: not a PCI device */ 505 spcr->pci_vendor_id = 0xffff; /* PCI Vendor ID: not a PCI device */ 506 507 build_header(linker, table_data, (void *)(table_data->data + spcr_start), 508 "SPCR", table_data->len - spcr_start, 2, NULL, NULL); 509 } 510 511 static void 512 build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 513 { 514 AcpiSystemResourceAffinityTable *srat; 515 AcpiSratProcessorGiccAffinity *core; 516 AcpiSratMemoryAffinity *numamem; 517 int i, srat_start; 518 uint64_t mem_base; 519 MachineClass *mc = MACHINE_GET_CLASS(vms); 520 const CPUArchIdList *cpu_list = mc->possible_cpu_arch_ids(MACHINE(vms)); 521 522 srat_start = table_data->len; 523 srat = acpi_data_push(table_data, sizeof(*srat)); 524 srat->reserved1 = cpu_to_le32(1); 525 526 for (i = 0; i < cpu_list->len; ++i) { 527 core = acpi_data_push(table_data, sizeof(*core)); 528 core->type = ACPI_SRAT_PROCESSOR_GICC; 529 core->length = sizeof(*core); 530 core->proximity = cpu_to_le32(cpu_list->cpus[i].props.node_id); 531 core->acpi_processor_uid = cpu_to_le32(i); 532 core->flags = cpu_to_le32(1); 533 } 534 535 mem_base = vms->memmap[VIRT_MEM].base; 536 for (i = 0; i < nb_numa_nodes; ++i) { 537 if (numa_info[i].node_mem > 0) { 538 numamem = acpi_data_push(table_data, sizeof(*numamem)); 539 build_srat_memory(numamem, mem_base, numa_info[i].node_mem, i, 540 MEM_AFFINITY_ENABLED); 541 mem_base += numa_info[i].node_mem; 542 } 543 } 544 545 build_header(linker, table_data, (void *)(table_data->data + srat_start), 546 "SRAT", table_data->len - srat_start, 3, NULL, NULL); 547 } 548 549 /* GTDT */ 550 static void 551 build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 552 { 553 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 554 int gtdt_start = table_data->len; 555 AcpiGenericTimerTable *gtdt; 556 uint32_t irqflags; 557 558 if (vmc->claim_edge_triggered_timers) { 559 irqflags = ACPI_GTDT_INTERRUPT_MODE_EDGE; 560 } else { 561 irqflags = ACPI_GTDT_INTERRUPT_MODE_LEVEL; 562 } 563 564 gtdt = acpi_data_push(table_data, sizeof *gtdt); 565 /* The interrupt values are the same with the device tree when adding 16 */ 566 gtdt->secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_S_EL1_IRQ + 16); 567 gtdt->secure_el1_flags = cpu_to_le32(irqflags); 568 569 gtdt->non_secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL1_IRQ + 16); 570 gtdt->non_secure_el1_flags = cpu_to_le32(irqflags | 571 ACPI_GTDT_CAP_ALWAYS_ON); 572 573 gtdt->virtual_timer_interrupt = cpu_to_le32(ARCH_TIMER_VIRT_IRQ + 16); 574 gtdt->virtual_timer_flags = cpu_to_le32(irqflags); 575 576 gtdt->non_secure_el2_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL2_IRQ + 16); 577 gtdt->non_secure_el2_flags = cpu_to_le32(irqflags); 578 579 build_header(linker, table_data, 580 (void *)(table_data->data + gtdt_start), "GTDT", 581 table_data->len - gtdt_start, 2, NULL, NULL); 582 } 583 584 /* MADT */ 585 static void 586 build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 587 { 588 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 589 int madt_start = table_data->len; 590 const MemMapEntry *memmap = vms->memmap; 591 const int *irqmap = vms->irqmap; 592 AcpiMultipleApicTable *madt; 593 AcpiMadtGenericDistributor *gicd; 594 AcpiMadtGenericMsiFrame *gic_msi; 595 int i; 596 597 madt = acpi_data_push(table_data, sizeof *madt); 598 599 gicd = acpi_data_push(table_data, sizeof *gicd); 600 gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR; 601 gicd->length = sizeof(*gicd); 602 gicd->base_address = cpu_to_le64(memmap[VIRT_GIC_DIST].base); 603 gicd->version = vms->gic_version; 604 605 for (i = 0; i < vms->smp_cpus; i++) { 606 AcpiMadtGenericCpuInterface *gicc = acpi_data_push(table_data, 607 sizeof(*gicc)); 608 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i)); 609 610 gicc->type = ACPI_APIC_GENERIC_CPU_INTERFACE; 611 gicc->length = sizeof(*gicc); 612 if (vms->gic_version == 2) { 613 gicc->base_address = cpu_to_le64(memmap[VIRT_GIC_CPU].base); 614 gicc->gich_base_address = cpu_to_le64(memmap[VIRT_GIC_HYP].base); 615 gicc->gicv_base_address = cpu_to_le64(memmap[VIRT_GIC_VCPU].base); 616 } 617 gicc->cpu_interface_number = cpu_to_le32(i); 618 gicc->arm_mpidr = cpu_to_le64(armcpu->mp_affinity); 619 gicc->uid = cpu_to_le32(i); 620 gicc->flags = cpu_to_le32(ACPI_MADT_GICC_ENABLED); 621 622 if (arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { 623 gicc->performance_interrupt = cpu_to_le32(PPI(VIRTUAL_PMU_IRQ)); 624 } 625 if (vms->virt) { 626 gicc->vgic_interrupt = cpu_to_le32(PPI(ARCH_GIC_MAINT_IRQ)); 627 } 628 } 629 630 if (vms->gic_version == 3) { 631 AcpiMadtGenericTranslator *gic_its; 632 int nb_redist_regions = virt_gicv3_redist_region_count(vms); 633 AcpiMadtGenericRedistributor *gicr = acpi_data_push(table_data, 634 sizeof *gicr); 635 636 gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; 637 gicr->length = sizeof(*gicr); 638 gicr->base_address = cpu_to_le64(memmap[VIRT_GIC_REDIST].base); 639 gicr->range_length = cpu_to_le32(memmap[VIRT_GIC_REDIST].size); 640 641 if (nb_redist_regions == 2) { 642 gicr = acpi_data_push(table_data, sizeof(*gicr)); 643 gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; 644 gicr->length = sizeof(*gicr); 645 gicr->base_address = 646 cpu_to_le64(memmap[VIRT_HIGH_GIC_REDIST2].base); 647 gicr->range_length = 648 cpu_to_le32(memmap[VIRT_HIGH_GIC_REDIST2].size); 649 } 650 651 if (its_class_name() && !vmc->no_its) { 652 gic_its = acpi_data_push(table_data, sizeof *gic_its); 653 gic_its->type = ACPI_APIC_GENERIC_TRANSLATOR; 654 gic_its->length = sizeof(*gic_its); 655 gic_its->translation_id = 0; 656 gic_its->base_address = cpu_to_le64(memmap[VIRT_GIC_ITS].base); 657 } 658 } else { 659 gic_msi = acpi_data_push(table_data, sizeof *gic_msi); 660 gic_msi->type = ACPI_APIC_GENERIC_MSI_FRAME; 661 gic_msi->length = sizeof(*gic_msi); 662 gic_msi->gic_msi_frame_id = 0; 663 gic_msi->base_address = cpu_to_le64(memmap[VIRT_GIC_V2M].base); 664 gic_msi->flags = cpu_to_le32(1); 665 gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS); 666 gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE); 667 } 668 669 build_header(linker, table_data, 670 (void *)(table_data->data + madt_start), "APIC", 671 table_data->len - madt_start, 3, NULL, NULL); 672 } 673 674 /* FADT */ 675 static void build_fadt_rev5(GArray *table_data, BIOSLinker *linker, 676 VirtMachineState *vms, unsigned dsdt_tbl_offset) 677 { 678 /* ACPI v5.1 */ 679 AcpiFadtData fadt = { 680 .rev = 5, 681 .minor_ver = 1, 682 .flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI, 683 .xdsdt_tbl_offset = &dsdt_tbl_offset, 684 }; 685 686 switch (vms->psci_conduit) { 687 case QEMU_PSCI_CONDUIT_DISABLED: 688 fadt.arm_boot_arch = 0; 689 break; 690 case QEMU_PSCI_CONDUIT_HVC: 691 fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT | 692 ACPI_FADT_ARM_PSCI_USE_HVC; 693 break; 694 case QEMU_PSCI_CONDUIT_SMC: 695 fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT; 696 break; 697 default: 698 g_assert_not_reached(); 699 } 700 701 build_fadt(table_data, linker, &fadt, NULL, NULL); 702 } 703 704 /* DSDT */ 705 static void 706 build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 707 { 708 Aml *scope, *dsdt; 709 const MemMapEntry *memmap = vms->memmap; 710 const int *irqmap = vms->irqmap; 711 712 dsdt = init_aml_allocator(); 713 /* Reserve space for header */ 714 acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader)); 715 716 /* When booting the VM with UEFI, UEFI takes ownership of the RTC hardware. 717 * While UEFI can use libfdt to disable the RTC device node in the DTB that 718 * it passes to the OS, it cannot modify AML. Therefore, we won't generate 719 * the RTC ACPI device at all when using UEFI. 720 */ 721 scope = aml_scope("\\_SB"); 722 acpi_dsdt_add_cpus(scope, vms->smp_cpus); 723 acpi_dsdt_add_uart(scope, &memmap[VIRT_UART], 724 (irqmap[VIRT_UART] + ARM_SPI_BASE)); 725 acpi_dsdt_add_flash(scope, &memmap[VIRT_FLASH]); 726 acpi_dsdt_add_fw_cfg(scope, &memmap[VIRT_FW_CFG]); 727 acpi_dsdt_add_virtio(scope, &memmap[VIRT_MMIO], 728 (irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS); 729 acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE), 730 vms->highmem, vms->highmem_ecam); 731 acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], 732 (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); 733 acpi_dsdt_add_power_button(scope); 734 735 aml_append(dsdt, scope); 736 737 /* copy AML table into ACPI tables blob and patch header there */ 738 g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len); 739 build_header(linker, table_data, 740 (void *)(table_data->data + table_data->len - dsdt->buf->len), 741 "DSDT", dsdt->buf->len, 2, NULL, NULL); 742 free_aml_allocator(); 743 } 744 745 typedef 746 struct AcpiBuildState { 747 /* Copy of table in RAM (for patching). */ 748 MemoryRegion *table_mr; 749 MemoryRegion *rsdp_mr; 750 MemoryRegion *linker_mr; 751 /* Is table patched? */ 752 bool patched; 753 } AcpiBuildState; 754 755 static 756 void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) 757 { 758 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 759 GArray *table_offsets; 760 unsigned dsdt, xsdt; 761 GArray *tables_blob = tables->table_data; 762 763 table_offsets = g_array_new(false, true /* clear */, 764 sizeof(uint32_t)); 765 766 bios_linker_loader_alloc(tables->linker, 767 ACPI_BUILD_TABLE_FILE, tables_blob, 768 64, false /* high memory */); 769 770 /* DSDT is pointed to by FADT */ 771 dsdt = tables_blob->len; 772 build_dsdt(tables_blob, tables->linker, vms); 773 774 /* FADT MADT GTDT MCFG SPCR pointed to by RSDT */ 775 acpi_add_table(table_offsets, tables_blob); 776 build_fadt_rev5(tables_blob, tables->linker, vms, dsdt); 777 778 acpi_add_table(table_offsets, tables_blob); 779 build_madt(tables_blob, tables->linker, vms); 780 781 acpi_add_table(table_offsets, tables_blob); 782 build_gtdt(tables_blob, tables->linker, vms); 783 784 acpi_add_table(table_offsets, tables_blob); 785 { 786 AcpiMcfgInfo mcfg = { 787 .base = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].base, 788 .size = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].size, 789 }; 790 build_mcfg(tables_blob, tables->linker, &mcfg); 791 } 792 793 acpi_add_table(table_offsets, tables_blob); 794 build_spcr(tables_blob, tables->linker, vms); 795 796 if (nb_numa_nodes > 0) { 797 acpi_add_table(table_offsets, tables_blob); 798 build_srat(tables_blob, tables->linker, vms); 799 if (have_numa_distance) { 800 acpi_add_table(table_offsets, tables_blob); 801 build_slit(tables_blob, tables->linker); 802 } 803 } 804 805 if (its_class_name() && !vmc->no_its) { 806 acpi_add_table(table_offsets, tables_blob); 807 build_iort(tables_blob, tables->linker, vms); 808 } 809 810 /* XSDT is pointed to by RSDP */ 811 xsdt = tables_blob->len; 812 build_xsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); 813 814 /* RSDP is in FSEG memory, so allocate it separately */ 815 { 816 AcpiRsdpData rsdp_data = { 817 .revision = 2, 818 .oem_id = ACPI_BUILD_APPNAME6, 819 .xsdt_tbl_offset = &xsdt, 820 .rsdt_tbl_offset = NULL, 821 }; 822 build_rsdp(tables->rsdp, tables->linker, &rsdp_data); 823 } 824 825 /* Cleanup memory that's no longer used. */ 826 g_array_free(table_offsets, true); 827 } 828 829 static void acpi_ram_update(MemoryRegion *mr, GArray *data) 830 { 831 uint32_t size = acpi_data_len(data); 832 833 /* Make sure RAM size is correct - in case it got changed 834 * e.g. by migration */ 835 memory_region_ram_resize(mr, size, &error_abort); 836 837 memcpy(memory_region_get_ram_ptr(mr), data->data, size); 838 memory_region_set_dirty(mr, 0, size); 839 } 840 841 static void virt_acpi_build_update(void *build_opaque) 842 { 843 AcpiBuildState *build_state = build_opaque; 844 AcpiBuildTables tables; 845 846 /* No state to update or already patched? Nothing to do. */ 847 if (!build_state || build_state->patched) { 848 return; 849 } 850 build_state->patched = true; 851 852 acpi_build_tables_init(&tables); 853 854 virt_acpi_build(VIRT_MACHINE(qdev_get_machine()), &tables); 855 856 acpi_ram_update(build_state->table_mr, tables.table_data); 857 acpi_ram_update(build_state->rsdp_mr, tables.rsdp); 858 acpi_ram_update(build_state->linker_mr, tables.linker->cmd_blob); 859 860 acpi_build_tables_cleanup(&tables, true); 861 } 862 863 static void virt_acpi_build_reset(void *build_opaque) 864 { 865 AcpiBuildState *build_state = build_opaque; 866 build_state->patched = false; 867 } 868 869 static const VMStateDescription vmstate_virt_acpi_build = { 870 .name = "virt_acpi_build", 871 .version_id = 1, 872 .minimum_version_id = 1, 873 .fields = (VMStateField[]) { 874 VMSTATE_BOOL(patched, AcpiBuildState), 875 VMSTATE_END_OF_LIST() 876 }, 877 }; 878 879 void virt_acpi_setup(VirtMachineState *vms) 880 { 881 AcpiBuildTables tables; 882 AcpiBuildState *build_state; 883 884 if (!vms->fw_cfg) { 885 trace_virt_acpi_setup(); 886 return; 887 } 888 889 if (!acpi_enabled) { 890 trace_virt_acpi_setup(); 891 return; 892 } 893 894 build_state = g_malloc0(sizeof *build_state); 895 896 acpi_build_tables_init(&tables); 897 virt_acpi_build(vms, &tables); 898 899 /* Now expose it all to Guest */ 900 build_state->table_mr = acpi_add_rom_blob(virt_acpi_build_update, 901 build_state, tables.table_data, 902 ACPI_BUILD_TABLE_FILE, 903 ACPI_BUILD_TABLE_MAX_SIZE); 904 assert(build_state->table_mr != NULL); 905 906 build_state->linker_mr = 907 acpi_add_rom_blob(virt_acpi_build_update, build_state, 908 tables.linker->cmd_blob, "etc/table-loader", 0); 909 910 fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE, tables.tcpalog->data, 911 acpi_data_len(tables.tcpalog)); 912 913 build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update, 914 build_state, tables.rsdp, 915 ACPI_BUILD_RSDP_FILE, 0); 916 917 qemu_register_reset(virt_acpi_build_reset, build_state); 918 virt_acpi_build_reset(build_state); 919 vmstate_register(NULL, 0, &vmstate_virt_acpi_build, build_state); 920 921 /* Cleanup tables but don't free the memory: we track it 922 * in build_state. 923 */ 924 acpi_build_tables_cleanup(&tables, false); 925 } 926