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 "hw/core/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/acpi/aml-build.h" 40 #include "hw/acpi/utils.h" 41 #include "hw/acpi/pci.h" 42 #include "hw/acpi/memory_hotplug.h" 43 #include "hw/acpi/generic_event_device.h" 44 #include "hw/acpi/tpm.h" 45 #include "hw/pci/pcie_host.h" 46 #include "hw/pci/pci.h" 47 #include "hw/arm/virt.h" 48 #include "hw/mem/nvdimm.h" 49 #include "hw/platform-bus.h" 50 #include "sysemu/numa.h" 51 #include "sysemu/reset.h" 52 #include "sysemu/tpm.h" 53 #include "kvm_arm.h" 54 #include "migration/vmstate.h" 55 #include "hw/acpi/ghes.h" 56 57 #define ARM_SPI_BASE 32 58 59 static void acpi_dsdt_add_cpus(Aml *scope, int smp_cpus) 60 { 61 uint16_t i; 62 63 for (i = 0; i < smp_cpus; i++) { 64 Aml *dev = aml_device("C%.03X", i); 65 aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007"))); 66 aml_append(dev, aml_name_decl("_UID", aml_int(i))); 67 aml_append(scope, dev); 68 } 69 } 70 71 static void acpi_dsdt_add_uart(Aml *scope, const MemMapEntry *uart_memmap, 72 uint32_t uart_irq) 73 { 74 Aml *dev = aml_device("COM0"); 75 aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0011"))); 76 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 77 78 Aml *crs = aml_resource_template(); 79 aml_append(crs, aml_memory32_fixed(uart_memmap->base, 80 uart_memmap->size, AML_READ_WRITE)); 81 aml_append(crs, 82 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 83 AML_EXCLUSIVE, &uart_irq, 1)); 84 aml_append(dev, aml_name_decl("_CRS", crs)); 85 86 aml_append(scope, dev); 87 } 88 89 static void acpi_dsdt_add_fw_cfg(Aml *scope, const MemMapEntry *fw_cfg_memmap) 90 { 91 Aml *dev = aml_device("FWCF"); 92 aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0002"))); 93 /* device present, functioning, decoding, not shown in UI */ 94 aml_append(dev, aml_name_decl("_STA", aml_int(0xB))); 95 aml_append(dev, aml_name_decl("_CCA", aml_int(1))); 96 97 Aml *crs = aml_resource_template(); 98 aml_append(crs, aml_memory32_fixed(fw_cfg_memmap->base, 99 fw_cfg_memmap->size, AML_READ_WRITE)); 100 aml_append(dev, aml_name_decl("_CRS", crs)); 101 aml_append(scope, dev); 102 } 103 104 static void acpi_dsdt_add_flash(Aml *scope, const MemMapEntry *flash_memmap) 105 { 106 Aml *dev, *crs; 107 hwaddr base = flash_memmap->base; 108 hwaddr size = flash_memmap->size / 2; 109 110 dev = aml_device("FLS0"); 111 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); 112 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 113 114 crs = aml_resource_template(); 115 aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); 116 aml_append(dev, aml_name_decl("_CRS", crs)); 117 aml_append(scope, dev); 118 119 dev = aml_device("FLS1"); 120 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0015"))); 121 aml_append(dev, aml_name_decl("_UID", aml_int(1))); 122 crs = aml_resource_template(); 123 aml_append(crs, aml_memory32_fixed(base + size, size, AML_READ_WRITE)); 124 aml_append(dev, aml_name_decl("_CRS", crs)); 125 aml_append(scope, dev); 126 } 127 128 static void acpi_dsdt_add_virtio(Aml *scope, 129 const MemMapEntry *virtio_mmio_memmap, 130 uint32_t mmio_irq, int num) 131 { 132 hwaddr base = virtio_mmio_memmap->base; 133 hwaddr size = virtio_mmio_memmap->size; 134 int i; 135 136 for (i = 0; i < num; i++) { 137 uint32_t irq = mmio_irq + i; 138 Aml *dev = aml_device("VR%02u", i); 139 aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005"))); 140 aml_append(dev, aml_name_decl("_UID", aml_int(i))); 141 aml_append(dev, aml_name_decl("_CCA", aml_int(1))); 142 143 Aml *crs = aml_resource_template(); 144 aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE)); 145 aml_append(crs, 146 aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 147 AML_EXCLUSIVE, &irq, 1)); 148 aml_append(dev, aml_name_decl("_CRS", crs)); 149 aml_append(scope, dev); 150 base += size; 151 } 152 } 153 154 static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, 155 uint32_t irq, bool use_highmem, bool highmem_ecam) 156 { 157 int ecam_id = VIRT_ECAM_ID(highmem_ecam); 158 Aml *method, *crs, *ifctx, *UUID, *ifctx1, *elsectx, *buf; 159 int i, slot_no; 160 hwaddr base_mmio = memmap[VIRT_PCIE_MMIO].base; 161 hwaddr size_mmio = memmap[VIRT_PCIE_MMIO].size; 162 hwaddr base_pio = memmap[VIRT_PCIE_PIO].base; 163 hwaddr size_pio = memmap[VIRT_PCIE_PIO].size; 164 hwaddr base_ecam = memmap[ecam_id].base; 165 hwaddr size_ecam = memmap[ecam_id].size; 166 int nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; 167 168 Aml *dev = aml_device("%s", "PCI0"); 169 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A08"))); 170 aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03"))); 171 aml_append(dev, aml_name_decl("_SEG", aml_int(0))); 172 aml_append(dev, aml_name_decl("_BBN", aml_int(0))); 173 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 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(PCI_SLOT_MAX * PCI_NUM_PINS); 179 for (slot_no = 0; slot_no < PCI_SLOT_MAX; slot_no++) { 180 for (i = 0; i < PCI_NUM_PINS; i++) { 181 int gsi = (i + slot_no) % PCI_NUM_PINS; 182 Aml *pkg = aml_package(4); 183 aml_append(pkg, aml_int((slot_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(i))); 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_return(rbuf)); 245 aml_append(dev, method); 246 247 /* Declare an _OSC (OS Control Handoff) method */ 248 aml_append(dev, aml_name_decl("SUPP", aml_int(0))); 249 aml_append(dev, aml_name_decl("CTRL", aml_int(0))); 250 method = aml_method("_OSC", 4, AML_NOTSERIALIZED); 251 aml_append(method, 252 aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1")); 253 254 /* PCI Firmware Specification 3.0 255 * 4.5.1. _OSC Interface for PCI Host Bridge Devices 256 * The _OSC interface for a PCI/PCI-X/PCI Express hierarchy is 257 * identified by the Universal Unique IDentifier (UUID) 258 * 33DB4D5B-1FF7-401C-9657-7441C03DD766 259 */ 260 UUID = aml_touuid("33DB4D5B-1FF7-401C-9657-7441C03DD766"); 261 ifctx = aml_if(aml_equal(aml_arg(0), UUID)); 262 aml_append(ifctx, 263 aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2")); 264 aml_append(ifctx, 265 aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3")); 266 aml_append(ifctx, aml_store(aml_name("CDW2"), aml_name("SUPP"))); 267 aml_append(ifctx, aml_store(aml_name("CDW3"), aml_name("CTRL"))); 268 269 /* 270 * Allow OS control for all 5 features: 271 * PCIeHotplug SHPCHotplug PME AER PCIeCapability. 272 */ 273 aml_append(ifctx, aml_and(aml_name("CTRL"), aml_int(0x1F), 274 aml_name("CTRL"))); 275 276 ifctx1 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(0x1)))); 277 aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x08), 278 aml_name("CDW1"))); 279 aml_append(ifctx, ifctx1); 280 281 ifctx1 = aml_if(aml_lnot(aml_equal(aml_name("CDW3"), aml_name("CTRL")))); 282 aml_append(ifctx1, aml_or(aml_name("CDW1"), aml_int(0x10), 283 aml_name("CDW1"))); 284 aml_append(ifctx, ifctx1); 285 286 aml_append(ifctx, aml_store(aml_name("CTRL"), aml_name("CDW3"))); 287 aml_append(ifctx, aml_return(aml_arg(3))); 288 aml_append(method, ifctx); 289 290 elsectx = aml_else(); 291 aml_append(elsectx, aml_or(aml_name("CDW1"), aml_int(4), 292 aml_name("CDW1"))); 293 aml_append(elsectx, aml_return(aml_arg(3))); 294 aml_append(method, elsectx); 295 aml_append(dev, method); 296 297 method = aml_method("_DSM", 4, AML_NOTSERIALIZED); 298 299 /* PCI Firmware Specification 3.0 300 * 4.6.1. _DSM for PCI Express Slot Information 301 * The UUID in _DSM in this context is 302 * {E5C937D0-3553-4D7A-9117-EA4D19C3434D} 303 */ 304 UUID = aml_touuid("E5C937D0-3553-4D7A-9117-EA4D19C3434D"); 305 ifctx = aml_if(aml_equal(aml_arg(0), UUID)); 306 ifctx1 = aml_if(aml_equal(aml_arg(2), aml_int(0))); 307 uint8_t byte_list[1] = {1}; 308 buf = aml_buffer(1, byte_list); 309 aml_append(ifctx1, aml_return(buf)); 310 aml_append(ifctx, ifctx1); 311 aml_append(method, ifctx); 312 313 byte_list[0] = 0; 314 buf = aml_buffer(1, byte_list); 315 aml_append(method, aml_return(buf)); 316 aml_append(dev, method); 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("_UID", aml_int(0))); 336 337 Aml *crs = aml_resource_template(); 338 aml_append(crs, aml_memory32_fixed(gpio_memmap->base, gpio_memmap->size, 339 AML_READ_WRITE)); 340 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, 341 AML_EXCLUSIVE, &gpio_irq, 1)); 342 aml_append(dev, aml_name_decl("_CRS", crs)); 343 344 Aml *aei = aml_resource_template(); 345 /* Pin 3 for power button */ 346 const uint32_t pin_list[1] = {3}; 347 aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH, 348 AML_EXCLUSIVE, AML_PULL_UP, 0, pin_list, 1, 349 "GPO0", NULL, 0)); 350 aml_append(dev, aml_name_decl("_AEI", aei)); 351 352 /* _E03 is handle for power button */ 353 Aml *method = aml_method("_E03", 0, AML_NOTSERIALIZED); 354 aml_append(method, aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE), 355 aml_int(0x80))); 356 aml_append(dev, method); 357 aml_append(scope, dev); 358 } 359 360 static void acpi_dsdt_add_power_button(Aml *scope) 361 { 362 Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE); 363 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C"))); 364 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 365 aml_append(scope, dev); 366 } 367 368 static void acpi_dsdt_add_tpm(Aml *scope, VirtMachineState *vms) 369 { 370 PlatformBusDevice *pbus = PLATFORM_BUS_DEVICE(vms->platform_bus_dev); 371 hwaddr pbus_base = vms->memmap[VIRT_PLATFORM_BUS].base; 372 SysBusDevice *sbdev = SYS_BUS_DEVICE(tpm_find()); 373 MemoryRegion *sbdev_mr; 374 hwaddr tpm_base; 375 376 if (!sbdev) { 377 return; 378 } 379 380 tpm_base = platform_bus_get_mmio_addr(pbus, sbdev, 0); 381 assert(tpm_base != -1); 382 383 tpm_base += pbus_base; 384 385 sbdev_mr = sysbus_mmio_get_region(sbdev, 0); 386 387 Aml *dev = aml_device("TPM0"); 388 aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101"))); 389 aml_append(dev, aml_name_decl("_UID", aml_int(0))); 390 391 Aml *crs = aml_resource_template(); 392 aml_append(crs, 393 aml_memory32_fixed(tpm_base, 394 (uint32_t)memory_region_size(sbdev_mr), 395 AML_READ_WRITE)); 396 aml_append(dev, aml_name_decl("_CRS", crs)); 397 aml_append(scope, dev); 398 } 399 400 static void 401 build_iort(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 402 { 403 int nb_nodes, iort_start = table_data->len; 404 AcpiIortIdMapping *idmap; 405 AcpiIortItsGroup *its; 406 AcpiIortTable *iort; 407 AcpiIortSmmu3 *smmu; 408 size_t node_size, iort_node_offset, iort_length, smmu_offset = 0; 409 AcpiIortRC *rc; 410 411 iort = acpi_data_push(table_data, sizeof(*iort)); 412 413 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 414 nb_nodes = 3; /* RC, ITS, SMMUv3 */ 415 } else { 416 nb_nodes = 2; /* RC, ITS */ 417 } 418 419 iort_length = sizeof(*iort); 420 iort->node_count = cpu_to_le32(nb_nodes); 421 /* 422 * Use a copy in case table_data->data moves during acpi_data_push 423 * operations. 424 */ 425 iort_node_offset = sizeof(*iort); 426 iort->node_offset = cpu_to_le32(iort_node_offset); 427 428 /* ITS group node */ 429 node_size = sizeof(*its) + sizeof(uint32_t); 430 iort_length += node_size; 431 its = acpi_data_push(table_data, node_size); 432 433 its->type = ACPI_IORT_NODE_ITS_GROUP; 434 its->length = cpu_to_le16(node_size); 435 its->its_count = cpu_to_le32(1); 436 its->identifiers[0] = 0; /* MADT translation_id */ 437 438 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 439 int irq = vms->irqmap[VIRT_SMMU] + ARM_SPI_BASE; 440 441 /* SMMUv3 node */ 442 smmu_offset = iort_node_offset + node_size; 443 node_size = sizeof(*smmu) + sizeof(*idmap); 444 iort_length += node_size; 445 smmu = acpi_data_push(table_data, node_size); 446 447 smmu->type = ACPI_IORT_NODE_SMMU_V3; 448 smmu->length = cpu_to_le16(node_size); 449 smmu->mapping_count = cpu_to_le32(1); 450 smmu->mapping_offset = cpu_to_le32(sizeof(*smmu)); 451 smmu->base_address = cpu_to_le64(vms->memmap[VIRT_SMMU].base); 452 smmu->flags = cpu_to_le32(ACPI_IORT_SMMU_V3_COHACC_OVERRIDE); 453 smmu->event_gsiv = cpu_to_le32(irq); 454 smmu->pri_gsiv = cpu_to_le32(irq + 1); 455 smmu->gerr_gsiv = cpu_to_le32(irq + 2); 456 smmu->sync_gsiv = cpu_to_le32(irq + 3); 457 458 /* Identity RID mapping covering the whole input RID range */ 459 idmap = &smmu->id_mapping_array[0]; 460 idmap->input_base = 0; 461 idmap->id_count = cpu_to_le32(0xFFFF); 462 idmap->output_base = 0; 463 /* output IORT node is the ITS group node (the first node) */ 464 idmap->output_reference = cpu_to_le32(iort_node_offset); 465 } 466 467 /* Root Complex Node */ 468 node_size = sizeof(*rc) + sizeof(*idmap); 469 iort_length += node_size; 470 rc = acpi_data_push(table_data, node_size); 471 472 rc->type = ACPI_IORT_NODE_PCI_ROOT_COMPLEX; 473 rc->length = cpu_to_le16(node_size); 474 rc->mapping_count = cpu_to_le32(1); 475 rc->mapping_offset = cpu_to_le32(sizeof(*rc)); 476 477 /* fully coherent device */ 478 rc->memory_properties.cache_coherency = cpu_to_le32(1); 479 rc->memory_properties.memory_flags = 0x3; /* CCA = CPM = DCAS = 1 */ 480 rc->pci_segment_number = 0; /* MCFG pci_segment */ 481 482 /* Identity RID mapping covering the whole input RID range */ 483 idmap = &rc->id_mapping_array[0]; 484 idmap->input_base = 0; 485 idmap->id_count = cpu_to_le32(0xFFFF); 486 idmap->output_base = 0; 487 488 if (vms->iommu == VIRT_IOMMU_SMMUV3) { 489 /* output IORT node is the smmuv3 node */ 490 idmap->output_reference = cpu_to_le32(smmu_offset); 491 } else { 492 /* output IORT node is the ITS group node (the first node) */ 493 idmap->output_reference = cpu_to_le32(iort_node_offset); 494 } 495 496 /* 497 * Update the pointer address in case table_data->data moves during above 498 * acpi_data_push operations. 499 */ 500 iort = (AcpiIortTable *)(table_data->data + iort_start); 501 iort->length = cpu_to_le32(iort_length); 502 503 build_header(linker, table_data, (void *)(table_data->data + iort_start), 504 "IORT", table_data->len - iort_start, 0, NULL, NULL); 505 } 506 507 static void 508 build_spcr(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 509 { 510 AcpiSerialPortConsoleRedirection *spcr; 511 const MemMapEntry *uart_memmap = &vms->memmap[VIRT_UART]; 512 int irq = vms->irqmap[VIRT_UART] + ARM_SPI_BASE; 513 int spcr_start = table_data->len; 514 515 spcr = acpi_data_push(table_data, sizeof(*spcr)); 516 517 spcr->interface_type = 0x3; /* ARM PL011 UART */ 518 519 spcr->base_address.space_id = AML_SYSTEM_MEMORY; 520 spcr->base_address.bit_width = 8; 521 spcr->base_address.bit_offset = 0; 522 spcr->base_address.access_width = 1; 523 spcr->base_address.address = cpu_to_le64(uart_memmap->base); 524 525 spcr->interrupt_types = (1 << 3); /* Bit[3] ARMH GIC interrupt */ 526 spcr->gsi = cpu_to_le32(irq); /* Global System Interrupt */ 527 528 spcr->baud = 3; /* Baud Rate: 3 = 9600 */ 529 spcr->parity = 0; /* No Parity */ 530 spcr->stopbits = 1; /* 1 Stop bit */ 531 spcr->flowctrl = (1 << 1); /* Bit[1] = RTS/CTS hardware flow control */ 532 spcr->term_type = 0; /* Terminal Type: 0 = VT100 */ 533 534 spcr->pci_device_id = 0xffff; /* PCI Device ID: not a PCI device */ 535 spcr->pci_vendor_id = 0xffff; /* PCI Vendor ID: not a PCI device */ 536 537 build_header(linker, table_data, (void *)(table_data->data + spcr_start), 538 "SPCR", table_data->len - spcr_start, 2, NULL, NULL); 539 } 540 541 static void 542 build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 543 { 544 AcpiSystemResourceAffinityTable *srat; 545 AcpiSratProcessorGiccAffinity *core; 546 AcpiSratMemoryAffinity *numamem; 547 int i, srat_start; 548 uint64_t mem_base; 549 MachineClass *mc = MACHINE_GET_CLASS(vms); 550 MachineState *ms = MACHINE(vms); 551 const CPUArchIdList *cpu_list = mc->possible_cpu_arch_ids(ms); 552 553 srat_start = table_data->len; 554 srat = acpi_data_push(table_data, sizeof(*srat)); 555 srat->reserved1 = cpu_to_le32(1); 556 557 for (i = 0; i < cpu_list->len; ++i) { 558 core = acpi_data_push(table_data, sizeof(*core)); 559 core->type = ACPI_SRAT_PROCESSOR_GICC; 560 core->length = sizeof(*core); 561 core->proximity = cpu_to_le32(cpu_list->cpus[i].props.node_id); 562 core->acpi_processor_uid = cpu_to_le32(i); 563 core->flags = cpu_to_le32(1); 564 } 565 566 mem_base = vms->memmap[VIRT_MEM].base; 567 for (i = 0; i < ms->numa_state->num_nodes; ++i) { 568 if (ms->numa_state->nodes[i].node_mem > 0) { 569 numamem = acpi_data_push(table_data, sizeof(*numamem)); 570 build_srat_memory(numamem, mem_base, 571 ms->numa_state->nodes[i].node_mem, i, 572 MEM_AFFINITY_ENABLED); 573 mem_base += ms->numa_state->nodes[i].node_mem; 574 } 575 } 576 577 if (ms->nvdimms_state->is_enabled) { 578 nvdimm_build_srat(table_data); 579 } 580 581 if (ms->device_memory) { 582 numamem = acpi_data_push(table_data, sizeof *numamem); 583 build_srat_memory(numamem, ms->device_memory->base, 584 memory_region_size(&ms->device_memory->mr), 585 ms->numa_state->num_nodes - 1, 586 MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED); 587 } 588 589 build_header(linker, table_data, (void *)(table_data->data + srat_start), 590 "SRAT", table_data->len - srat_start, 3, NULL, NULL); 591 } 592 593 /* GTDT */ 594 static void 595 build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 596 { 597 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 598 int gtdt_start = table_data->len; 599 AcpiGenericTimerTable *gtdt; 600 uint32_t irqflags; 601 602 if (vmc->claim_edge_triggered_timers) { 603 irqflags = ACPI_GTDT_INTERRUPT_MODE_EDGE; 604 } else { 605 irqflags = ACPI_GTDT_INTERRUPT_MODE_LEVEL; 606 } 607 608 gtdt = acpi_data_push(table_data, sizeof *gtdt); 609 /* The interrupt values are the same with the device tree when adding 16 */ 610 gtdt->secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_S_EL1_IRQ + 16); 611 gtdt->secure_el1_flags = cpu_to_le32(irqflags); 612 613 gtdt->non_secure_el1_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL1_IRQ + 16); 614 gtdt->non_secure_el1_flags = cpu_to_le32(irqflags | 615 ACPI_GTDT_CAP_ALWAYS_ON); 616 617 gtdt->virtual_timer_interrupt = cpu_to_le32(ARCH_TIMER_VIRT_IRQ + 16); 618 gtdt->virtual_timer_flags = cpu_to_le32(irqflags); 619 620 gtdt->non_secure_el2_interrupt = cpu_to_le32(ARCH_TIMER_NS_EL2_IRQ + 16); 621 gtdt->non_secure_el2_flags = cpu_to_le32(irqflags); 622 623 build_header(linker, table_data, 624 (void *)(table_data->data + gtdt_start), "GTDT", 625 table_data->len - gtdt_start, 2, NULL, NULL); 626 } 627 628 /* MADT */ 629 static void 630 build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 631 { 632 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 633 int madt_start = table_data->len; 634 const MemMapEntry *memmap = vms->memmap; 635 const int *irqmap = vms->irqmap; 636 AcpiMultipleApicTable *madt; 637 AcpiMadtGenericDistributor *gicd; 638 AcpiMadtGenericMsiFrame *gic_msi; 639 int i; 640 641 madt = acpi_data_push(table_data, sizeof *madt); 642 643 gicd = acpi_data_push(table_data, sizeof *gicd); 644 gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR; 645 gicd->length = sizeof(*gicd); 646 gicd->base_address = cpu_to_le64(memmap[VIRT_GIC_DIST].base); 647 gicd->version = vms->gic_version; 648 649 for (i = 0; i < vms->smp_cpus; i++) { 650 AcpiMadtGenericCpuInterface *gicc = acpi_data_push(table_data, 651 sizeof(*gicc)); 652 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i)); 653 654 gicc->type = ACPI_APIC_GENERIC_CPU_INTERFACE; 655 gicc->length = sizeof(*gicc); 656 if (vms->gic_version == 2) { 657 gicc->base_address = cpu_to_le64(memmap[VIRT_GIC_CPU].base); 658 gicc->gich_base_address = cpu_to_le64(memmap[VIRT_GIC_HYP].base); 659 gicc->gicv_base_address = cpu_to_le64(memmap[VIRT_GIC_VCPU].base); 660 } 661 gicc->cpu_interface_number = cpu_to_le32(i); 662 gicc->arm_mpidr = cpu_to_le64(armcpu->mp_affinity); 663 gicc->uid = cpu_to_le32(i); 664 gicc->flags = cpu_to_le32(ACPI_MADT_GICC_ENABLED); 665 666 if (arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { 667 gicc->performance_interrupt = cpu_to_le32(PPI(VIRTUAL_PMU_IRQ)); 668 } 669 if (vms->virt) { 670 gicc->vgic_interrupt = cpu_to_le32(PPI(ARCH_GIC_MAINT_IRQ)); 671 } 672 } 673 674 if (vms->gic_version == 3) { 675 AcpiMadtGenericTranslator *gic_its; 676 int nb_redist_regions = virt_gicv3_redist_region_count(vms); 677 AcpiMadtGenericRedistributor *gicr = acpi_data_push(table_data, 678 sizeof *gicr); 679 680 gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; 681 gicr->length = sizeof(*gicr); 682 gicr->base_address = cpu_to_le64(memmap[VIRT_GIC_REDIST].base); 683 gicr->range_length = cpu_to_le32(memmap[VIRT_GIC_REDIST].size); 684 685 if (nb_redist_regions == 2) { 686 gicr = acpi_data_push(table_data, sizeof(*gicr)); 687 gicr->type = ACPI_APIC_GENERIC_REDISTRIBUTOR; 688 gicr->length = sizeof(*gicr); 689 gicr->base_address = 690 cpu_to_le64(memmap[VIRT_HIGH_GIC_REDIST2].base); 691 gicr->range_length = 692 cpu_to_le32(memmap[VIRT_HIGH_GIC_REDIST2].size); 693 } 694 695 if (its_class_name() && !vmc->no_its) { 696 gic_its = acpi_data_push(table_data, sizeof *gic_its); 697 gic_its->type = ACPI_APIC_GENERIC_TRANSLATOR; 698 gic_its->length = sizeof(*gic_its); 699 gic_its->translation_id = 0; 700 gic_its->base_address = cpu_to_le64(memmap[VIRT_GIC_ITS].base); 701 } 702 } else { 703 gic_msi = acpi_data_push(table_data, sizeof *gic_msi); 704 gic_msi->type = ACPI_APIC_GENERIC_MSI_FRAME; 705 gic_msi->length = sizeof(*gic_msi); 706 gic_msi->gic_msi_frame_id = 0; 707 gic_msi->base_address = cpu_to_le64(memmap[VIRT_GIC_V2M].base); 708 gic_msi->flags = cpu_to_le32(1); 709 gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS); 710 gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE); 711 } 712 713 build_header(linker, table_data, 714 (void *)(table_data->data + madt_start), "APIC", 715 table_data->len - madt_start, 3, NULL, NULL); 716 } 717 718 /* FADT */ 719 static void build_fadt_rev5(GArray *table_data, BIOSLinker *linker, 720 VirtMachineState *vms, unsigned dsdt_tbl_offset) 721 { 722 /* ACPI v5.1 */ 723 AcpiFadtData fadt = { 724 .rev = 5, 725 .minor_ver = 1, 726 .flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI, 727 .xdsdt_tbl_offset = &dsdt_tbl_offset, 728 }; 729 730 switch (vms->psci_conduit) { 731 case QEMU_PSCI_CONDUIT_DISABLED: 732 fadt.arm_boot_arch = 0; 733 break; 734 case QEMU_PSCI_CONDUIT_HVC: 735 fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT | 736 ACPI_FADT_ARM_PSCI_USE_HVC; 737 break; 738 case QEMU_PSCI_CONDUIT_SMC: 739 fadt.arm_boot_arch = ACPI_FADT_ARM_PSCI_COMPLIANT; 740 break; 741 default: 742 g_assert_not_reached(); 743 } 744 745 build_fadt(table_data, linker, &fadt, NULL, NULL); 746 } 747 748 /* DSDT */ 749 static void 750 build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) 751 { 752 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 753 Aml *scope, *dsdt; 754 MachineState *ms = MACHINE(vms); 755 const MemMapEntry *memmap = vms->memmap; 756 const int *irqmap = vms->irqmap; 757 758 dsdt = init_aml_allocator(); 759 /* Reserve space for header */ 760 acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader)); 761 762 /* When booting the VM with UEFI, UEFI takes ownership of the RTC hardware. 763 * While UEFI can use libfdt to disable the RTC device node in the DTB that 764 * it passes to the OS, it cannot modify AML. Therefore, we won't generate 765 * the RTC ACPI device at all when using UEFI. 766 */ 767 scope = aml_scope("\\_SB"); 768 acpi_dsdt_add_cpus(scope, vms->smp_cpus); 769 acpi_dsdt_add_uart(scope, &memmap[VIRT_UART], 770 (irqmap[VIRT_UART] + ARM_SPI_BASE)); 771 if (vmc->acpi_expose_flash) { 772 acpi_dsdt_add_flash(scope, &memmap[VIRT_FLASH]); 773 } 774 acpi_dsdt_add_fw_cfg(scope, &memmap[VIRT_FW_CFG]); 775 acpi_dsdt_add_virtio(scope, &memmap[VIRT_MMIO], 776 (irqmap[VIRT_MMIO] + ARM_SPI_BASE), NUM_VIRTIO_TRANSPORTS); 777 acpi_dsdt_add_pci(scope, memmap, (irqmap[VIRT_PCIE] + ARM_SPI_BASE), 778 vms->highmem, vms->highmem_ecam); 779 if (vms->acpi_dev) { 780 build_ged_aml(scope, "\\_SB."GED_DEVICE, 781 HOTPLUG_HANDLER(vms->acpi_dev), 782 irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, AML_SYSTEM_MEMORY, 783 memmap[VIRT_ACPI_GED].base); 784 } else { 785 acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], 786 (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); 787 } 788 789 if (vms->acpi_dev) { 790 uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev), 791 "ged-event", &error_abort); 792 793 if (event & ACPI_GED_MEM_HOTPLUG_EVT) { 794 build_memory_hotplug_aml(scope, ms->ram_slots, "\\_SB", NULL, 795 AML_SYSTEM_MEMORY, 796 memmap[VIRT_PCDIMM_ACPI].base); 797 } 798 } 799 800 acpi_dsdt_add_power_button(scope); 801 acpi_dsdt_add_tpm(scope, vms); 802 803 aml_append(dsdt, scope); 804 805 /* copy AML table into ACPI tables blob and patch header there */ 806 g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len); 807 build_header(linker, table_data, 808 (void *)(table_data->data + table_data->len - dsdt->buf->len), 809 "DSDT", dsdt->buf->len, 2, NULL, NULL); 810 free_aml_allocator(); 811 } 812 813 typedef 814 struct AcpiBuildState { 815 /* Copy of table in RAM (for patching). */ 816 MemoryRegion *table_mr; 817 MemoryRegion *rsdp_mr; 818 MemoryRegion *linker_mr; 819 /* Is table patched? */ 820 bool patched; 821 } AcpiBuildState; 822 823 static 824 void virt_acpi_build(VirtMachineState *vms, AcpiBuildTables *tables) 825 { 826 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 827 GArray *table_offsets; 828 unsigned dsdt, xsdt; 829 GArray *tables_blob = tables->table_data; 830 MachineState *ms = MACHINE(vms); 831 832 table_offsets = g_array_new(false, true /* clear */, 833 sizeof(uint32_t)); 834 835 bios_linker_loader_alloc(tables->linker, 836 ACPI_BUILD_TABLE_FILE, tables_blob, 837 64, false /* high memory */); 838 839 /* DSDT is pointed to by FADT */ 840 dsdt = tables_blob->len; 841 build_dsdt(tables_blob, tables->linker, vms); 842 843 /* FADT MADT GTDT MCFG SPCR pointed to by RSDT */ 844 acpi_add_table(table_offsets, tables_blob); 845 build_fadt_rev5(tables_blob, tables->linker, vms, dsdt); 846 847 acpi_add_table(table_offsets, tables_blob); 848 build_madt(tables_blob, tables->linker, vms); 849 850 acpi_add_table(table_offsets, tables_blob); 851 build_gtdt(tables_blob, tables->linker, vms); 852 853 acpi_add_table(table_offsets, tables_blob); 854 { 855 AcpiMcfgInfo mcfg = { 856 .base = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].base, 857 .size = vms->memmap[VIRT_ECAM_ID(vms->highmem_ecam)].size, 858 }; 859 build_mcfg(tables_blob, tables->linker, &mcfg); 860 } 861 862 acpi_add_table(table_offsets, tables_blob); 863 build_spcr(tables_blob, tables->linker, vms); 864 865 if (vms->ras) { 866 build_ghes_error_table(tables->hardware_errors, tables->linker); 867 acpi_add_table(table_offsets, tables_blob); 868 acpi_build_hest(tables_blob, tables->linker); 869 } 870 871 if (ms->numa_state->num_nodes > 0) { 872 acpi_add_table(table_offsets, tables_blob); 873 build_srat(tables_blob, tables->linker, vms); 874 if (ms->numa_state->have_numa_distance) { 875 acpi_add_table(table_offsets, tables_blob); 876 build_slit(tables_blob, tables->linker, ms); 877 } 878 } 879 880 if (ms->nvdimms_state->is_enabled) { 881 nvdimm_build_acpi(table_offsets, tables_blob, tables->linker, 882 ms->nvdimms_state, ms->ram_slots); 883 } 884 885 if (its_class_name() && !vmc->no_its) { 886 acpi_add_table(table_offsets, tables_blob); 887 build_iort(tables_blob, tables->linker, vms); 888 } 889 890 if (tpm_get_version(tpm_find()) == TPM_VERSION_2_0) { 891 acpi_add_table(table_offsets, tables_blob); 892 build_tpm2(tables_blob, tables->linker, tables->tcpalog); 893 } 894 895 /* XSDT is pointed to by RSDP */ 896 xsdt = tables_blob->len; 897 build_xsdt(tables_blob, tables->linker, table_offsets, NULL, NULL); 898 899 /* RSDP is in FSEG memory, so allocate it separately */ 900 { 901 AcpiRsdpData rsdp_data = { 902 .revision = 2, 903 .oem_id = ACPI_BUILD_APPNAME6, 904 .xsdt_tbl_offset = &xsdt, 905 .rsdt_tbl_offset = NULL, 906 }; 907 build_rsdp(tables->rsdp, tables->linker, &rsdp_data); 908 } 909 910 /* Cleanup memory that's no longer used. */ 911 g_array_free(table_offsets, true); 912 } 913 914 static void acpi_ram_update(MemoryRegion *mr, GArray *data) 915 { 916 uint32_t size = acpi_data_len(data); 917 918 /* Make sure RAM size is correct - in case it got changed 919 * e.g. by migration */ 920 memory_region_ram_resize(mr, size, &error_abort); 921 922 memcpy(memory_region_get_ram_ptr(mr), data->data, size); 923 memory_region_set_dirty(mr, 0, size); 924 } 925 926 static void virt_acpi_build_update(void *build_opaque) 927 { 928 AcpiBuildState *build_state = build_opaque; 929 AcpiBuildTables tables; 930 931 /* No state to update or already patched? Nothing to do. */ 932 if (!build_state || build_state->patched) { 933 return; 934 } 935 build_state->patched = true; 936 937 acpi_build_tables_init(&tables); 938 939 virt_acpi_build(VIRT_MACHINE(qdev_get_machine()), &tables); 940 941 acpi_ram_update(build_state->table_mr, tables.table_data); 942 acpi_ram_update(build_state->rsdp_mr, tables.rsdp); 943 acpi_ram_update(build_state->linker_mr, tables.linker->cmd_blob); 944 945 acpi_build_tables_cleanup(&tables, true); 946 } 947 948 static void virt_acpi_build_reset(void *build_opaque) 949 { 950 AcpiBuildState *build_state = build_opaque; 951 build_state->patched = false; 952 } 953 954 static const VMStateDescription vmstate_virt_acpi_build = { 955 .name = "virt_acpi_build", 956 .version_id = 1, 957 .minimum_version_id = 1, 958 .fields = (VMStateField[]) { 959 VMSTATE_BOOL(patched, AcpiBuildState), 960 VMSTATE_END_OF_LIST() 961 }, 962 }; 963 964 void virt_acpi_setup(VirtMachineState *vms) 965 { 966 AcpiBuildTables tables; 967 AcpiBuildState *build_state; 968 AcpiGedState *acpi_ged_state; 969 970 if (!vms->fw_cfg) { 971 trace_virt_acpi_setup(); 972 return; 973 } 974 975 if (!virt_is_acpi_enabled(vms)) { 976 trace_virt_acpi_setup(); 977 return; 978 } 979 980 build_state = g_malloc0(sizeof *build_state); 981 982 acpi_build_tables_init(&tables); 983 virt_acpi_build(vms, &tables); 984 985 /* Now expose it all to Guest */ 986 build_state->table_mr = acpi_add_rom_blob(virt_acpi_build_update, 987 build_state, tables.table_data, 988 ACPI_BUILD_TABLE_FILE, 989 ACPI_BUILD_TABLE_MAX_SIZE); 990 assert(build_state->table_mr != NULL); 991 992 build_state->linker_mr = 993 acpi_add_rom_blob(virt_acpi_build_update, build_state, 994 tables.linker->cmd_blob, ACPI_BUILD_LOADER_FILE, 0); 995 996 fw_cfg_add_file(vms->fw_cfg, ACPI_BUILD_TPMLOG_FILE, tables.tcpalog->data, 997 acpi_data_len(tables.tcpalog)); 998 999 if (vms->ras) { 1000 assert(vms->acpi_dev); 1001 acpi_ged_state = ACPI_GED(vms->acpi_dev); 1002 acpi_ghes_add_fw_cfg(&acpi_ged_state->ghes_state, 1003 vms->fw_cfg, tables.hardware_errors); 1004 } 1005 1006 build_state->rsdp_mr = acpi_add_rom_blob(virt_acpi_build_update, 1007 build_state, tables.rsdp, 1008 ACPI_BUILD_RSDP_FILE, 0); 1009 1010 qemu_register_reset(virt_acpi_build_reset, build_state); 1011 virt_acpi_build_reset(build_state); 1012 vmstate_register(NULL, 0, &vmstate_virt_acpi_build, build_state); 1013 1014 /* Cleanup tables but don't free the memory: we track it 1015 * in build_state. 1016 */ 1017 acpi_build_tables_cleanup(&tables, false); 1018 } 1019