1 /* 2 * ARM mach-virt emulation 3 * 4 * Copyright (c) 2013 Linaro Limited 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2 or later, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along with 16 * this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 * Emulate a virtual board which works by passing Linux all the information 19 * it needs about what devices are present via the device tree. 20 * There are some restrictions about what we can do here: 21 * + we can only present devices whose Linux drivers will work based 22 * purely on the device tree with no platform data at all 23 * + we want to present a very stripped-down minimalist platform, 24 * both because this reduces the security attack surface from the guest 25 * and also because it reduces our exposure to being broken when 26 * the kernel updates its device tree bindings and requires further 27 * information in a device binding that we aren't providing. 28 * This is essentially the same approach kvmtool uses. 29 */ 30 31 #include "qemu/osdep.h" 32 #include "qemu/datadir.h" 33 #include "qemu/units.h" 34 #include "qemu/option.h" 35 #include "monitor/qdev.h" 36 #include "qapi/error.h" 37 #include "hw/sysbus.h" 38 #include "hw/arm/boot.h" 39 #include "hw/arm/primecell.h" 40 #include "hw/arm/virt.h" 41 #include "hw/block/flash.h" 42 #include "hw/vfio/vfio-calxeda-xgmac.h" 43 #include "hw/vfio/vfio-amd-xgbe.h" 44 #include "hw/display/ramfb.h" 45 #include "net/net.h" 46 #include "sysemu/device_tree.h" 47 #include "sysemu/numa.h" 48 #include "sysemu/runstate.h" 49 #include "sysemu/tpm.h" 50 #include "sysemu/kvm.h" 51 #include "sysemu/hvf.h" 52 #include "hw/loader.h" 53 #include "qapi/error.h" 54 #include "qemu/bitops.h" 55 #include "qemu/error-report.h" 56 #include "qemu/module.h" 57 #include "hw/pci-host/gpex.h" 58 #include "hw/virtio/virtio-pci.h" 59 #include "hw/core/sysbus-fdt.h" 60 #include "hw/platform-bus.h" 61 #include "hw/qdev-properties.h" 62 #include "hw/arm/fdt.h" 63 #include "hw/intc/arm_gic.h" 64 #include "hw/intc/arm_gicv3_common.h" 65 #include "hw/irq.h" 66 #include "kvm_arm.h" 67 #include "hw/firmware/smbios.h" 68 #include "qapi/visitor.h" 69 #include "qapi/qapi-visit-common.h" 70 #include "standard-headers/linux/input.h" 71 #include "hw/arm/smmuv3.h" 72 #include "hw/acpi/acpi.h" 73 #include "target/arm/internals.h" 74 #include "hw/mem/memory-device.h" 75 #include "hw/mem/pc-dimm.h" 76 #include "hw/mem/nvdimm.h" 77 #include "hw/acpi/generic_event_device.h" 78 #include "hw/virtio/virtio-mem-pci.h" 79 #include "hw/virtio/virtio-iommu.h" 80 #include "hw/char/pl011.h" 81 #include "qemu/guest-random.h" 82 83 #define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \ 84 static void virt_##major##_##minor##_class_init(ObjectClass *oc, \ 85 void *data) \ 86 { \ 87 MachineClass *mc = MACHINE_CLASS(oc); \ 88 virt_machine_##major##_##minor##_options(mc); \ 89 mc->desc = "QEMU " # major "." # minor " ARM Virtual Machine"; \ 90 if (latest) { \ 91 mc->alias = "virt"; \ 92 } \ 93 } \ 94 static const TypeInfo machvirt_##major##_##minor##_info = { \ 95 .name = MACHINE_TYPE_NAME("virt-" # major "." # minor), \ 96 .parent = TYPE_VIRT_MACHINE, \ 97 .class_init = virt_##major##_##minor##_class_init, \ 98 }; \ 99 static void machvirt_machine_##major##_##minor##_init(void) \ 100 { \ 101 type_register_static(&machvirt_##major##_##minor##_info); \ 102 } \ 103 type_init(machvirt_machine_##major##_##minor##_init); 104 105 #define DEFINE_VIRT_MACHINE_AS_LATEST(major, minor) \ 106 DEFINE_VIRT_MACHINE_LATEST(major, minor, true) 107 #define DEFINE_VIRT_MACHINE(major, minor) \ 108 DEFINE_VIRT_MACHINE_LATEST(major, minor, false) 109 110 111 /* Number of external interrupt lines to configure the GIC with */ 112 #define NUM_IRQS 256 113 114 #define PLATFORM_BUS_NUM_IRQS 64 115 116 /* Legacy RAM limit in GB (< version 4.0) */ 117 #define LEGACY_RAMLIMIT_GB 255 118 #define LEGACY_RAMLIMIT_BYTES (LEGACY_RAMLIMIT_GB * GiB) 119 120 /* Addresses and sizes of our components. 121 * 0..128MB is space for a flash device so we can run bootrom code such as UEFI. 122 * 128MB..256MB is used for miscellaneous device I/O. 123 * 256MB..1GB is reserved for possible future PCI support (ie where the 124 * PCI memory window will go if we add a PCI host controller). 125 * 1GB and up is RAM (which may happily spill over into the 126 * high memory region beyond 4GB). 127 * This represents a compromise between how much RAM can be given to 128 * a 32 bit VM and leaving space for expansion and in particular for PCI. 129 * Note that devices should generally be placed at multiples of 0x10000, 130 * to accommodate guests using 64K pages. 131 */ 132 static const MemMapEntry base_memmap[] = { 133 /* Space up to 0x8000000 is reserved for a boot ROM */ 134 [VIRT_FLASH] = { 0, 0x08000000 }, 135 [VIRT_CPUPERIPHS] = { 0x08000000, 0x00020000 }, 136 /* GIC distributor and CPU interfaces sit inside the CPU peripheral space */ 137 [VIRT_GIC_DIST] = { 0x08000000, 0x00010000 }, 138 [VIRT_GIC_CPU] = { 0x08010000, 0x00010000 }, 139 [VIRT_GIC_V2M] = { 0x08020000, 0x00001000 }, 140 [VIRT_GIC_HYP] = { 0x08030000, 0x00010000 }, 141 [VIRT_GIC_VCPU] = { 0x08040000, 0x00010000 }, 142 /* The space in between here is reserved for GICv3 CPU/vCPU/HYP */ 143 [VIRT_GIC_ITS] = { 0x08080000, 0x00020000 }, 144 /* This redistributor space allows up to 2*64kB*123 CPUs */ 145 [VIRT_GIC_REDIST] = { 0x080A0000, 0x00F60000 }, 146 [VIRT_UART] = { 0x09000000, 0x00001000 }, 147 [VIRT_RTC] = { 0x09010000, 0x00001000 }, 148 [VIRT_FW_CFG] = { 0x09020000, 0x00000018 }, 149 [VIRT_GPIO] = { 0x09030000, 0x00001000 }, 150 [VIRT_SECURE_UART] = { 0x09040000, 0x00001000 }, 151 [VIRT_SMMU] = { 0x09050000, 0x00020000 }, 152 [VIRT_PCDIMM_ACPI] = { 0x09070000, MEMORY_HOTPLUG_IO_LEN }, 153 [VIRT_ACPI_GED] = { 0x09080000, ACPI_GED_EVT_SEL_LEN }, 154 [VIRT_NVDIMM_ACPI] = { 0x09090000, NVDIMM_ACPI_IO_LEN}, 155 [VIRT_PVTIME] = { 0x090a0000, 0x00010000 }, 156 [VIRT_SECURE_GPIO] = { 0x090b0000, 0x00001000 }, 157 [VIRT_MMIO] = { 0x0a000000, 0x00000200 }, 158 /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */ 159 [VIRT_PLATFORM_BUS] = { 0x0c000000, 0x02000000 }, 160 [VIRT_SECURE_MEM] = { 0x0e000000, 0x01000000 }, 161 [VIRT_PCIE_MMIO] = { 0x10000000, 0x2eff0000 }, 162 [VIRT_PCIE_PIO] = { 0x3eff0000, 0x00010000 }, 163 [VIRT_PCIE_ECAM] = { 0x3f000000, 0x01000000 }, 164 /* Actual RAM size depends on initial RAM and device memory settings */ 165 [VIRT_MEM] = { GiB, LEGACY_RAMLIMIT_BYTES }, 166 }; 167 168 /* 169 * Highmem IO Regions: This memory map is floating, located after the RAM. 170 * Each MemMapEntry base (GPA) will be dynamically computed, depending on the 171 * top of the RAM, so that its base get the same alignment as the size, 172 * ie. a 512GiB entry will be aligned on a 512GiB boundary. If there is 173 * less than 256GiB of RAM, the floating area starts at the 256GiB mark. 174 * Note the extended_memmap is sized so that it eventually also includes the 175 * base_memmap entries (VIRT_HIGH_GIC_REDIST2 index is greater than the last 176 * index of base_memmap). 177 */ 178 static MemMapEntry extended_memmap[] = { 179 /* Additional 64 MB redist region (can contain up to 512 redistributors) */ 180 [VIRT_HIGH_GIC_REDIST2] = { 0x0, 64 * MiB }, 181 [VIRT_HIGH_PCIE_ECAM] = { 0x0, 256 * MiB }, 182 /* Second PCIe window */ 183 [VIRT_HIGH_PCIE_MMIO] = { 0x0, 512 * GiB }, 184 }; 185 186 static const int a15irqmap[] = { 187 [VIRT_UART] = 1, 188 [VIRT_RTC] = 2, 189 [VIRT_PCIE] = 3, /* ... to 6 */ 190 [VIRT_GPIO] = 7, 191 [VIRT_SECURE_UART] = 8, 192 [VIRT_ACPI_GED] = 9, 193 [VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */ 194 [VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */ 195 [VIRT_SMMU] = 74, /* ...to 74 + NUM_SMMU_IRQS - 1 */ 196 [VIRT_PLATFORM_BUS] = 112, /* ...to 112 + PLATFORM_BUS_NUM_IRQS -1 */ 197 }; 198 199 static const char *valid_cpus[] = { 200 ARM_CPU_TYPE_NAME("cortex-a7"), 201 ARM_CPU_TYPE_NAME("cortex-a15"), 202 ARM_CPU_TYPE_NAME("cortex-a53"), 203 ARM_CPU_TYPE_NAME("cortex-a57"), 204 ARM_CPU_TYPE_NAME("cortex-a72"), 205 ARM_CPU_TYPE_NAME("cortex-a76"), 206 ARM_CPU_TYPE_NAME("a64fx"), 207 ARM_CPU_TYPE_NAME("neoverse-n1"), 208 ARM_CPU_TYPE_NAME("host"), 209 ARM_CPU_TYPE_NAME("max"), 210 }; 211 212 static bool cpu_type_valid(const char *cpu) 213 { 214 int i; 215 216 for (i = 0; i < ARRAY_SIZE(valid_cpus); i++) { 217 if (strcmp(cpu, valid_cpus[i]) == 0) { 218 return true; 219 } 220 } 221 return false; 222 } 223 224 static void create_randomness(MachineState *ms, const char *node) 225 { 226 struct { 227 uint64_t kaslr; 228 uint8_t rng[32]; 229 } seed; 230 231 if (qemu_guest_getrandom(&seed, sizeof(seed), NULL)) { 232 return; 233 } 234 qemu_fdt_setprop_u64(ms->fdt, node, "kaslr-seed", seed.kaslr); 235 qemu_fdt_setprop(ms->fdt, node, "rng-seed", seed.rng, sizeof(seed.rng)); 236 } 237 238 static void create_fdt(VirtMachineState *vms) 239 { 240 MachineState *ms = MACHINE(vms); 241 int nb_numa_nodes = ms->numa_state->num_nodes; 242 void *fdt = create_device_tree(&vms->fdt_size); 243 244 if (!fdt) { 245 error_report("create_device_tree() failed"); 246 exit(1); 247 } 248 249 ms->fdt = fdt; 250 251 /* Header */ 252 qemu_fdt_setprop_string(fdt, "/", "compatible", "linux,dummy-virt"); 253 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); 254 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); 255 256 /* /chosen must exist for load_dtb to fill in necessary properties later */ 257 qemu_fdt_add_subnode(fdt, "/chosen"); 258 if (vms->dtb_randomness) { 259 create_randomness(ms, "/chosen"); 260 } 261 262 if (vms->secure) { 263 qemu_fdt_add_subnode(fdt, "/secure-chosen"); 264 if (vms->dtb_randomness) { 265 create_randomness(ms, "/secure-chosen"); 266 } 267 } 268 269 /* Clock node, for the benefit of the UART. The kernel device tree 270 * binding documentation claims the PL011 node clock properties are 271 * optional but in practice if you omit them the kernel refuses to 272 * probe for the device. 273 */ 274 vms->clock_phandle = qemu_fdt_alloc_phandle(fdt); 275 qemu_fdt_add_subnode(fdt, "/apb-pclk"); 276 qemu_fdt_setprop_string(fdt, "/apb-pclk", "compatible", "fixed-clock"); 277 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "#clock-cells", 0x0); 278 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "clock-frequency", 24000000); 279 qemu_fdt_setprop_string(fdt, "/apb-pclk", "clock-output-names", 280 "clk24mhz"); 281 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vms->clock_phandle); 282 283 if (nb_numa_nodes > 0 && ms->numa_state->have_numa_distance) { 284 int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t); 285 uint32_t *matrix = g_malloc0(size); 286 int idx, i, j; 287 288 for (i = 0; i < nb_numa_nodes; i++) { 289 for (j = 0; j < nb_numa_nodes; j++) { 290 idx = (i * nb_numa_nodes + j) * 3; 291 matrix[idx + 0] = cpu_to_be32(i); 292 matrix[idx + 1] = cpu_to_be32(j); 293 matrix[idx + 2] = 294 cpu_to_be32(ms->numa_state->nodes[i].distance[j]); 295 } 296 } 297 298 qemu_fdt_add_subnode(fdt, "/distance-map"); 299 qemu_fdt_setprop_string(fdt, "/distance-map", "compatible", 300 "numa-distance-map-v1"); 301 qemu_fdt_setprop(fdt, "/distance-map", "distance-matrix", 302 matrix, size); 303 g_free(matrix); 304 } 305 } 306 307 static void fdt_add_timer_nodes(const VirtMachineState *vms) 308 { 309 /* On real hardware these interrupts are level-triggered. 310 * On KVM they were edge-triggered before host kernel version 4.4, 311 * and level-triggered afterwards. 312 * On emulated QEMU they are level-triggered. 313 * 314 * Getting the DTB info about them wrong is awkward for some 315 * guest kernels: 316 * pre-4.8 ignore the DT and leave the interrupt configured 317 * with whatever the GIC reset value (or the bootloader) left it at 318 * 4.8 before rc6 honour the incorrect data by programming it back 319 * into the GIC, causing problems 320 * 4.8rc6 and later ignore the DT and always write "level triggered" 321 * into the GIC 322 * 323 * For backwards-compatibility, virt-2.8 and earlier will continue 324 * to say these are edge-triggered, but later machines will report 325 * the correct information. 326 */ 327 ARMCPU *armcpu; 328 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 329 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 330 MachineState *ms = MACHINE(vms); 331 332 if (vmc->claim_edge_triggered_timers) { 333 irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI; 334 } 335 336 if (vms->gic_version == VIRT_GIC_VERSION_2) { 337 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 338 GIC_FDT_IRQ_PPI_CPU_WIDTH, 339 (1 << MACHINE(vms)->smp.cpus) - 1); 340 } 341 342 qemu_fdt_add_subnode(ms->fdt, "/timer"); 343 344 armcpu = ARM_CPU(qemu_get_cpu(0)); 345 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 346 const char compat[] = "arm,armv8-timer\0arm,armv7-timer"; 347 qemu_fdt_setprop(ms->fdt, "/timer", "compatible", 348 compat, sizeof(compat)); 349 } else { 350 qemu_fdt_setprop_string(ms->fdt, "/timer", "compatible", 351 "arm,armv7-timer"); 352 } 353 qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0); 354 qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts", 355 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_S_EL1_IRQ, irqflags, 356 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL1_IRQ, irqflags, 357 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_VIRT_IRQ, irqflags, 358 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL2_IRQ, irqflags); 359 } 360 361 static void fdt_add_cpu_nodes(const VirtMachineState *vms) 362 { 363 int cpu; 364 int addr_cells = 1; 365 const MachineState *ms = MACHINE(vms); 366 const VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 367 int smp_cpus = ms->smp.cpus; 368 369 /* 370 * See Linux Documentation/devicetree/bindings/arm/cpus.yaml 371 * On ARM v8 64-bit systems value should be set to 2, 372 * that corresponds to the MPIDR_EL1 register size. 373 * If MPIDR_EL1[63:32] value is equal to 0 on all CPUs 374 * in the system, #address-cells can be set to 1, since 375 * MPIDR_EL1[63:32] bits are not used for CPUs 376 * identification. 377 * 378 * Here we actually don't know whether our system is 32- or 64-bit one. 379 * The simplest way to go is to examine affinity IDs of all our CPUs. If 380 * at least one of them has Aff3 populated, we set #address-cells to 2. 381 */ 382 for (cpu = 0; cpu < smp_cpus; cpu++) { 383 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 384 385 if (armcpu->mp_affinity & ARM_AFF3_MASK) { 386 addr_cells = 2; 387 break; 388 } 389 } 390 391 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 392 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", addr_cells); 393 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 394 395 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 396 char *nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 397 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 398 CPUState *cs = CPU(armcpu); 399 400 qemu_fdt_add_subnode(ms->fdt, nodename); 401 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); 402 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 403 armcpu->dtb_compatible); 404 405 if (vms->psci_conduit != QEMU_PSCI_CONDUIT_DISABLED && smp_cpus > 1) { 406 qemu_fdt_setprop_string(ms->fdt, nodename, 407 "enable-method", "psci"); 408 } 409 410 if (addr_cells == 2) { 411 qemu_fdt_setprop_u64(ms->fdt, nodename, "reg", 412 armcpu->mp_affinity); 413 } else { 414 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", 415 armcpu->mp_affinity); 416 } 417 418 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { 419 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", 420 ms->possible_cpus->cpus[cs->cpu_index].props.node_id); 421 } 422 423 if (!vmc->no_cpu_topology) { 424 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", 425 qemu_fdt_alloc_phandle(ms->fdt)); 426 } 427 428 g_free(nodename); 429 } 430 431 if (!vmc->no_cpu_topology) { 432 /* 433 * Add vCPU topology description through fdt node cpu-map. 434 * 435 * See Linux Documentation/devicetree/bindings/cpu/cpu-topology.txt 436 * In a SMP system, the hierarchy of CPUs can be defined through 437 * four entities that are used to describe the layout of CPUs in 438 * the system: socket/cluster/core/thread. 439 * 440 * A socket node represents the boundary of system physical package 441 * and its child nodes must be one or more cluster nodes. A system 442 * can contain several layers of clustering within a single physical 443 * package and cluster nodes can be contained in parent cluster nodes. 444 * 445 * Note: currently we only support one layer of clustering within 446 * each physical package. 447 */ 448 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 449 450 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 451 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", cpu); 452 char *map_path; 453 454 if (ms->smp.threads > 1) { 455 map_path = g_strdup_printf( 456 "/cpus/cpu-map/socket%d/cluster%d/core%d/thread%d", 457 cpu / (ms->smp.clusters * ms->smp.cores * ms->smp.threads), 458 (cpu / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters, 459 (cpu / ms->smp.threads) % ms->smp.cores, 460 cpu % ms->smp.threads); 461 } else { 462 map_path = g_strdup_printf( 463 "/cpus/cpu-map/socket%d/cluster%d/core%d", 464 cpu / (ms->smp.clusters * ms->smp.cores), 465 (cpu / ms->smp.cores) % ms->smp.clusters, 466 cpu % ms->smp.cores); 467 } 468 qemu_fdt_add_path(ms->fdt, map_path); 469 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); 470 471 g_free(map_path); 472 g_free(cpu_path); 473 } 474 } 475 } 476 477 static void fdt_add_its_gic_node(VirtMachineState *vms) 478 { 479 char *nodename; 480 MachineState *ms = MACHINE(vms); 481 482 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 483 nodename = g_strdup_printf("/intc/its@%" PRIx64, 484 vms->memmap[VIRT_GIC_ITS].base); 485 qemu_fdt_add_subnode(ms->fdt, nodename); 486 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 487 "arm,gic-v3-its"); 488 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 489 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 490 2, vms->memmap[VIRT_GIC_ITS].base, 491 2, vms->memmap[VIRT_GIC_ITS].size); 492 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 493 g_free(nodename); 494 } 495 496 static void fdt_add_v2m_gic_node(VirtMachineState *vms) 497 { 498 MachineState *ms = MACHINE(vms); 499 char *nodename; 500 501 nodename = g_strdup_printf("/intc/v2m@%" PRIx64, 502 vms->memmap[VIRT_GIC_V2M].base); 503 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 504 qemu_fdt_add_subnode(ms->fdt, nodename); 505 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 506 "arm,gic-v2m-frame"); 507 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 508 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 509 2, vms->memmap[VIRT_GIC_V2M].base, 510 2, vms->memmap[VIRT_GIC_V2M].size); 511 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 512 g_free(nodename); 513 } 514 515 static void fdt_add_gic_node(VirtMachineState *vms) 516 { 517 MachineState *ms = MACHINE(vms); 518 char *nodename; 519 520 vms->gic_phandle = qemu_fdt_alloc_phandle(ms->fdt); 521 qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", vms->gic_phandle); 522 523 nodename = g_strdup_printf("/intc@%" PRIx64, 524 vms->memmap[VIRT_GIC_DIST].base); 525 qemu_fdt_add_subnode(ms->fdt, nodename); 526 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3); 527 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 528 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2); 529 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2); 530 qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0); 531 if (vms->gic_version != VIRT_GIC_VERSION_2) { 532 int nb_redist_regions = virt_gicv3_redist_region_count(vms); 533 534 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 535 "arm,gic-v3"); 536 537 qemu_fdt_setprop_cell(ms->fdt, nodename, 538 "#redistributor-regions", nb_redist_regions); 539 540 if (nb_redist_regions == 1) { 541 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 542 2, vms->memmap[VIRT_GIC_DIST].base, 543 2, vms->memmap[VIRT_GIC_DIST].size, 544 2, vms->memmap[VIRT_GIC_REDIST].base, 545 2, vms->memmap[VIRT_GIC_REDIST].size); 546 } else { 547 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 548 2, vms->memmap[VIRT_GIC_DIST].base, 549 2, vms->memmap[VIRT_GIC_DIST].size, 550 2, vms->memmap[VIRT_GIC_REDIST].base, 551 2, vms->memmap[VIRT_GIC_REDIST].size, 552 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].base, 553 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].size); 554 } 555 556 if (vms->virt) { 557 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 558 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 559 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 560 } 561 } else { 562 /* 'cortex-a15-gic' means 'GIC v2' */ 563 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 564 "arm,cortex-a15-gic"); 565 if (!vms->virt) { 566 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 567 2, vms->memmap[VIRT_GIC_DIST].base, 568 2, vms->memmap[VIRT_GIC_DIST].size, 569 2, vms->memmap[VIRT_GIC_CPU].base, 570 2, vms->memmap[VIRT_GIC_CPU].size); 571 } else { 572 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 573 2, vms->memmap[VIRT_GIC_DIST].base, 574 2, vms->memmap[VIRT_GIC_DIST].size, 575 2, vms->memmap[VIRT_GIC_CPU].base, 576 2, vms->memmap[VIRT_GIC_CPU].size, 577 2, vms->memmap[VIRT_GIC_HYP].base, 578 2, vms->memmap[VIRT_GIC_HYP].size, 579 2, vms->memmap[VIRT_GIC_VCPU].base, 580 2, vms->memmap[VIRT_GIC_VCPU].size); 581 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 582 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 583 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 584 } 585 } 586 587 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->gic_phandle); 588 g_free(nodename); 589 } 590 591 static void fdt_add_pmu_nodes(const VirtMachineState *vms) 592 { 593 ARMCPU *armcpu = ARM_CPU(first_cpu); 594 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 595 MachineState *ms = MACHINE(vms); 596 597 if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { 598 assert(!object_property_get_bool(OBJECT(armcpu), "pmu", NULL)); 599 return; 600 } 601 602 if (vms->gic_version == VIRT_GIC_VERSION_2) { 603 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 604 GIC_FDT_IRQ_PPI_CPU_WIDTH, 605 (1 << MACHINE(vms)->smp.cpus) - 1); 606 } 607 608 qemu_fdt_add_subnode(ms->fdt, "/pmu"); 609 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 610 const char compat[] = "arm,armv8-pmuv3"; 611 qemu_fdt_setprop(ms->fdt, "/pmu", "compatible", 612 compat, sizeof(compat)); 613 qemu_fdt_setprop_cells(ms->fdt, "/pmu", "interrupts", 614 GIC_FDT_IRQ_TYPE_PPI, VIRTUAL_PMU_IRQ, irqflags); 615 } 616 } 617 618 static inline DeviceState *create_acpi_ged(VirtMachineState *vms) 619 { 620 DeviceState *dev; 621 MachineState *ms = MACHINE(vms); 622 int irq = vms->irqmap[VIRT_ACPI_GED]; 623 uint32_t event = ACPI_GED_PWR_DOWN_EVT; 624 625 if (ms->ram_slots) { 626 event |= ACPI_GED_MEM_HOTPLUG_EVT; 627 } 628 629 if (ms->nvdimms_state->is_enabled) { 630 event |= ACPI_GED_NVDIMM_HOTPLUG_EVT; 631 } 632 633 dev = qdev_new(TYPE_ACPI_GED); 634 qdev_prop_set_uint32(dev, "ged-event", event); 635 636 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].base); 637 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].base); 638 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, irq)); 639 640 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 641 642 return dev; 643 } 644 645 static void create_its(VirtMachineState *vms) 646 { 647 const char *itsclass = its_class_name(); 648 DeviceState *dev; 649 650 if (!strcmp(itsclass, "arm-gicv3-its")) { 651 if (!vms->tcg_its) { 652 itsclass = NULL; 653 } 654 } 655 656 if (!itsclass) { 657 /* Do nothing if not supported */ 658 return; 659 } 660 661 dev = qdev_new(itsclass); 662 663 object_property_set_link(OBJECT(dev), "parent-gicv3", OBJECT(vms->gic), 664 &error_abort); 665 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 666 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_ITS].base); 667 668 fdt_add_its_gic_node(vms); 669 vms->msi_controller = VIRT_MSI_CTRL_ITS; 670 } 671 672 static void create_v2m(VirtMachineState *vms) 673 { 674 int i; 675 int irq = vms->irqmap[VIRT_GIC_V2M]; 676 DeviceState *dev; 677 678 dev = qdev_new("arm-gicv2m"); 679 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_V2M].base); 680 qdev_prop_set_uint32(dev, "base-spi", irq); 681 qdev_prop_set_uint32(dev, "num-spi", NUM_GICV2M_SPIS); 682 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 683 684 for (i = 0; i < NUM_GICV2M_SPIS; i++) { 685 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 686 qdev_get_gpio_in(vms->gic, irq + i)); 687 } 688 689 fdt_add_v2m_gic_node(vms); 690 vms->msi_controller = VIRT_MSI_CTRL_GICV2M; 691 } 692 693 static void create_gic(VirtMachineState *vms, MemoryRegion *mem) 694 { 695 MachineState *ms = MACHINE(vms); 696 /* We create a standalone GIC */ 697 SysBusDevice *gicbusdev; 698 const char *gictype; 699 int i; 700 unsigned int smp_cpus = ms->smp.cpus; 701 uint32_t nb_redist_regions = 0; 702 int revision; 703 704 if (vms->gic_version == VIRT_GIC_VERSION_2) { 705 gictype = gic_class_name(); 706 } else { 707 gictype = gicv3_class_name(); 708 } 709 710 switch (vms->gic_version) { 711 case VIRT_GIC_VERSION_2: 712 revision = 2; 713 break; 714 case VIRT_GIC_VERSION_3: 715 revision = 3; 716 break; 717 case VIRT_GIC_VERSION_4: 718 revision = 4; 719 break; 720 default: 721 g_assert_not_reached(); 722 } 723 vms->gic = qdev_new(gictype); 724 qdev_prop_set_uint32(vms->gic, "revision", revision); 725 qdev_prop_set_uint32(vms->gic, "num-cpu", smp_cpus); 726 /* Note that the num-irq property counts both internal and external 727 * interrupts; there are always 32 of the former (mandated by GIC spec). 728 */ 729 qdev_prop_set_uint32(vms->gic, "num-irq", NUM_IRQS + 32); 730 if (!kvm_irqchip_in_kernel()) { 731 qdev_prop_set_bit(vms->gic, "has-security-extensions", vms->secure); 732 } 733 734 if (vms->gic_version != VIRT_GIC_VERSION_2) { 735 uint32_t redist0_capacity = virt_redist_capacity(vms, VIRT_GIC_REDIST); 736 uint32_t redist0_count = MIN(smp_cpus, redist0_capacity); 737 738 nb_redist_regions = virt_gicv3_redist_region_count(vms); 739 740 qdev_prop_set_uint32(vms->gic, "len-redist-region-count", 741 nb_redist_regions); 742 qdev_prop_set_uint32(vms->gic, "redist-region-count[0]", redist0_count); 743 744 if (!kvm_irqchip_in_kernel()) { 745 if (vms->tcg_its) { 746 object_property_set_link(OBJECT(vms->gic), "sysmem", 747 OBJECT(mem), &error_fatal); 748 qdev_prop_set_bit(vms->gic, "has-lpi", true); 749 } 750 } 751 752 if (nb_redist_regions == 2) { 753 uint32_t redist1_capacity = 754 virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 755 756 qdev_prop_set_uint32(vms->gic, "redist-region-count[1]", 757 MIN(smp_cpus - redist0_count, redist1_capacity)); 758 } 759 } else { 760 if (!kvm_irqchip_in_kernel()) { 761 qdev_prop_set_bit(vms->gic, "has-virtualization-extensions", 762 vms->virt); 763 } 764 } 765 gicbusdev = SYS_BUS_DEVICE(vms->gic); 766 sysbus_realize_and_unref(gicbusdev, &error_fatal); 767 sysbus_mmio_map(gicbusdev, 0, vms->memmap[VIRT_GIC_DIST].base); 768 if (vms->gic_version != VIRT_GIC_VERSION_2) { 769 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_REDIST].base); 770 if (nb_redist_regions == 2) { 771 sysbus_mmio_map(gicbusdev, 2, 772 vms->memmap[VIRT_HIGH_GIC_REDIST2].base); 773 } 774 } else { 775 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_CPU].base); 776 if (vms->virt) { 777 sysbus_mmio_map(gicbusdev, 2, vms->memmap[VIRT_GIC_HYP].base); 778 sysbus_mmio_map(gicbusdev, 3, vms->memmap[VIRT_GIC_VCPU].base); 779 } 780 } 781 782 /* Wire the outputs from each CPU's generic timer and the GICv3 783 * maintenance interrupt signal to the appropriate GIC PPI inputs, 784 * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs. 785 */ 786 for (i = 0; i < smp_cpus; i++) { 787 DeviceState *cpudev = DEVICE(qemu_get_cpu(i)); 788 int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS; 789 int irq; 790 /* Mapping from the output timer irq lines from the CPU to the 791 * GIC PPI inputs we use for the virt board. 792 */ 793 const int timer_irq[] = { 794 [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ, 795 [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ, 796 [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ, 797 [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ, 798 }; 799 800 for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { 801 qdev_connect_gpio_out(cpudev, irq, 802 qdev_get_gpio_in(vms->gic, 803 ppibase + timer_irq[irq])); 804 } 805 806 if (vms->gic_version != VIRT_GIC_VERSION_2) { 807 qemu_irq irq = qdev_get_gpio_in(vms->gic, 808 ppibase + ARCH_GIC_MAINT_IRQ); 809 qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt", 810 0, irq); 811 } else if (vms->virt) { 812 qemu_irq irq = qdev_get_gpio_in(vms->gic, 813 ppibase + ARCH_GIC_MAINT_IRQ); 814 sysbus_connect_irq(gicbusdev, i + 4 * smp_cpus, irq); 815 } 816 817 qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0, 818 qdev_get_gpio_in(vms->gic, ppibase 819 + VIRTUAL_PMU_IRQ)); 820 821 sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ)); 822 sysbus_connect_irq(gicbusdev, i + smp_cpus, 823 qdev_get_gpio_in(cpudev, ARM_CPU_FIQ)); 824 sysbus_connect_irq(gicbusdev, i + 2 * smp_cpus, 825 qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ)); 826 sysbus_connect_irq(gicbusdev, i + 3 * smp_cpus, 827 qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ)); 828 } 829 830 fdt_add_gic_node(vms); 831 832 if (vms->gic_version != VIRT_GIC_VERSION_2 && vms->its) { 833 create_its(vms); 834 } else if (vms->gic_version == VIRT_GIC_VERSION_2) { 835 create_v2m(vms); 836 } 837 } 838 839 static void create_uart(const VirtMachineState *vms, int uart, 840 MemoryRegion *mem, Chardev *chr) 841 { 842 char *nodename; 843 hwaddr base = vms->memmap[uart].base; 844 hwaddr size = vms->memmap[uart].size; 845 int irq = vms->irqmap[uart]; 846 const char compat[] = "arm,pl011\0arm,primecell"; 847 const char clocknames[] = "uartclk\0apb_pclk"; 848 DeviceState *dev = qdev_new(TYPE_PL011); 849 SysBusDevice *s = SYS_BUS_DEVICE(dev); 850 MachineState *ms = MACHINE(vms); 851 852 qdev_prop_set_chr(dev, "chardev", chr); 853 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 854 memory_region_add_subregion(mem, base, 855 sysbus_mmio_get_region(s, 0)); 856 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 857 858 nodename = g_strdup_printf("/pl011@%" PRIx64, base); 859 qemu_fdt_add_subnode(ms->fdt, nodename); 860 /* Note that we can't use setprop_string because of the embedded NUL */ 861 qemu_fdt_setprop(ms->fdt, nodename, "compatible", 862 compat, sizeof(compat)); 863 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 864 2, base, 2, size); 865 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 866 GIC_FDT_IRQ_TYPE_SPI, irq, 867 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 868 qemu_fdt_setprop_cells(ms->fdt, nodename, "clocks", 869 vms->clock_phandle, vms->clock_phandle); 870 qemu_fdt_setprop(ms->fdt, nodename, "clock-names", 871 clocknames, sizeof(clocknames)); 872 873 if (uart == VIRT_UART) { 874 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); 875 } else { 876 /* Mark as not usable by the normal world */ 877 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 878 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 879 880 qemu_fdt_setprop_string(ms->fdt, "/secure-chosen", "stdout-path", 881 nodename); 882 } 883 884 g_free(nodename); 885 } 886 887 static void create_rtc(const VirtMachineState *vms) 888 { 889 char *nodename; 890 hwaddr base = vms->memmap[VIRT_RTC].base; 891 hwaddr size = vms->memmap[VIRT_RTC].size; 892 int irq = vms->irqmap[VIRT_RTC]; 893 const char compat[] = "arm,pl031\0arm,primecell"; 894 MachineState *ms = MACHINE(vms); 895 896 sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq)); 897 898 nodename = g_strdup_printf("/pl031@%" PRIx64, base); 899 qemu_fdt_add_subnode(ms->fdt, nodename); 900 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 901 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 902 2, base, 2, size); 903 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 904 GIC_FDT_IRQ_TYPE_SPI, irq, 905 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 906 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 907 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 908 g_free(nodename); 909 } 910 911 static DeviceState *gpio_key_dev; 912 static void virt_powerdown_req(Notifier *n, void *opaque) 913 { 914 VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier); 915 916 if (s->acpi_dev) { 917 acpi_send_event(s->acpi_dev, ACPI_POWER_DOWN_STATUS); 918 } else { 919 /* use gpio Pin 3 for power button event */ 920 qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1); 921 } 922 } 923 924 static void create_gpio_keys(char *fdt, DeviceState *pl061_dev, 925 uint32_t phandle) 926 { 927 gpio_key_dev = sysbus_create_simple("gpio-key", -1, 928 qdev_get_gpio_in(pl061_dev, 3)); 929 930 qemu_fdt_add_subnode(fdt, "/gpio-keys"); 931 qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys"); 932 933 qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff"); 934 qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff", 935 "label", "GPIO Key Poweroff"); 936 qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code", 937 KEY_POWER); 938 qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff", 939 "gpios", phandle, 3, 0); 940 } 941 942 #define SECURE_GPIO_POWEROFF 0 943 #define SECURE_GPIO_RESET 1 944 945 static void create_secure_gpio_pwr(char *fdt, DeviceState *pl061_dev, 946 uint32_t phandle) 947 { 948 DeviceState *gpio_pwr_dev; 949 950 /* gpio-pwr */ 951 gpio_pwr_dev = sysbus_create_simple("gpio-pwr", -1, NULL); 952 953 /* connect secure pl061 to gpio-pwr */ 954 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_RESET, 955 qdev_get_gpio_in_named(gpio_pwr_dev, "reset", 0)); 956 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_POWEROFF, 957 qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0)); 958 959 qemu_fdt_add_subnode(fdt, "/gpio-poweroff"); 960 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "compatible", 961 "gpio-poweroff"); 962 qemu_fdt_setprop_cells(fdt, "/gpio-poweroff", 963 "gpios", phandle, SECURE_GPIO_POWEROFF, 0); 964 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "status", "disabled"); 965 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "secure-status", 966 "okay"); 967 968 qemu_fdt_add_subnode(fdt, "/gpio-restart"); 969 qemu_fdt_setprop_string(fdt, "/gpio-restart", "compatible", 970 "gpio-restart"); 971 qemu_fdt_setprop_cells(fdt, "/gpio-restart", 972 "gpios", phandle, SECURE_GPIO_RESET, 0); 973 qemu_fdt_setprop_string(fdt, "/gpio-restart", "status", "disabled"); 974 qemu_fdt_setprop_string(fdt, "/gpio-restart", "secure-status", 975 "okay"); 976 } 977 978 static void create_gpio_devices(const VirtMachineState *vms, int gpio, 979 MemoryRegion *mem) 980 { 981 char *nodename; 982 DeviceState *pl061_dev; 983 hwaddr base = vms->memmap[gpio].base; 984 hwaddr size = vms->memmap[gpio].size; 985 int irq = vms->irqmap[gpio]; 986 const char compat[] = "arm,pl061\0arm,primecell"; 987 SysBusDevice *s; 988 MachineState *ms = MACHINE(vms); 989 990 pl061_dev = qdev_new("pl061"); 991 /* Pull lines down to 0 if not driven by the PL061 */ 992 qdev_prop_set_uint32(pl061_dev, "pullups", 0); 993 qdev_prop_set_uint32(pl061_dev, "pulldowns", 0xff); 994 s = SYS_BUS_DEVICE(pl061_dev); 995 sysbus_realize_and_unref(s, &error_fatal); 996 memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); 997 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 998 999 uint32_t phandle = qemu_fdt_alloc_phandle(ms->fdt); 1000 nodename = g_strdup_printf("/pl061@%" PRIx64, base); 1001 qemu_fdt_add_subnode(ms->fdt, nodename); 1002 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1003 2, base, 2, size); 1004 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 1005 qemu_fdt_setprop_cell(ms->fdt, nodename, "#gpio-cells", 2); 1006 qemu_fdt_setprop(ms->fdt, nodename, "gpio-controller", NULL, 0); 1007 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1008 GIC_FDT_IRQ_TYPE_SPI, irq, 1009 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 1010 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 1011 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 1012 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle); 1013 1014 if (gpio != VIRT_GPIO) { 1015 /* Mark as not usable by the normal world */ 1016 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1017 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1018 } 1019 g_free(nodename); 1020 1021 /* Child gpio devices */ 1022 if (gpio == VIRT_GPIO) { 1023 create_gpio_keys(ms->fdt, pl061_dev, phandle); 1024 } else { 1025 create_secure_gpio_pwr(ms->fdt, pl061_dev, phandle); 1026 } 1027 } 1028 1029 static void create_virtio_devices(const VirtMachineState *vms) 1030 { 1031 int i; 1032 hwaddr size = vms->memmap[VIRT_MMIO].size; 1033 MachineState *ms = MACHINE(vms); 1034 1035 /* We create the transports in forwards order. Since qbus_realize() 1036 * prepends (not appends) new child buses, the incrementing loop below will 1037 * create a list of virtio-mmio buses with decreasing base addresses. 1038 * 1039 * When a -device option is processed from the command line, 1040 * qbus_find_recursive() picks the next free virtio-mmio bus in forwards 1041 * order. The upshot is that -device options in increasing command line 1042 * order are mapped to virtio-mmio buses with decreasing base addresses. 1043 * 1044 * When this code was originally written, that arrangement ensured that the 1045 * guest Linux kernel would give the lowest "name" (/dev/vda, eth0, etc) to 1046 * the first -device on the command line. (The end-to-end order is a 1047 * function of this loop, qbus_realize(), qbus_find_recursive(), and the 1048 * guest kernel's name-to-address assignment strategy.) 1049 * 1050 * Meanwhile, the kernel's traversal seems to have been reversed; see eg. 1051 * the message, if not necessarily the code, of commit 70161ff336. 1052 * Therefore the loop now establishes the inverse of the original intent. 1053 * 1054 * Unfortunately, we can't counteract the kernel change by reversing the 1055 * loop; it would break existing command lines. 1056 * 1057 * In any case, the kernel makes no guarantee about the stability of 1058 * enumeration order of virtio devices (as demonstrated by it changing 1059 * between kernel versions). For reliable and stable identification 1060 * of disks users must use UUIDs or similar mechanisms. 1061 */ 1062 for (i = 0; i < NUM_VIRTIO_TRANSPORTS; i++) { 1063 int irq = vms->irqmap[VIRT_MMIO] + i; 1064 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1065 1066 sysbus_create_simple("virtio-mmio", base, 1067 qdev_get_gpio_in(vms->gic, irq)); 1068 } 1069 1070 /* We add dtb nodes in reverse order so that they appear in the finished 1071 * device tree lowest address first. 1072 * 1073 * Note that this mapping is independent of the loop above. The previous 1074 * loop influences virtio device to virtio transport assignment, whereas 1075 * this loop controls how virtio transports are laid out in the dtb. 1076 */ 1077 for (i = NUM_VIRTIO_TRANSPORTS - 1; i >= 0; i--) { 1078 char *nodename; 1079 int irq = vms->irqmap[VIRT_MMIO] + i; 1080 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1081 1082 nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, base); 1083 qemu_fdt_add_subnode(ms->fdt, nodename); 1084 qemu_fdt_setprop_string(ms->fdt, nodename, 1085 "compatible", "virtio,mmio"); 1086 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1087 2, base, 2, size); 1088 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1089 GIC_FDT_IRQ_TYPE_SPI, irq, 1090 GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1091 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1092 g_free(nodename); 1093 } 1094 } 1095 1096 #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) 1097 1098 static PFlashCFI01 *virt_flash_create1(VirtMachineState *vms, 1099 const char *name, 1100 const char *alias_prop_name) 1101 { 1102 /* 1103 * Create a single flash device. We use the same parameters as 1104 * the flash devices on the Versatile Express board. 1105 */ 1106 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 1107 1108 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 1109 qdev_prop_set_uint8(dev, "width", 4); 1110 qdev_prop_set_uint8(dev, "device-width", 2); 1111 qdev_prop_set_bit(dev, "big-endian", false); 1112 qdev_prop_set_uint16(dev, "id0", 0x89); 1113 qdev_prop_set_uint16(dev, "id1", 0x18); 1114 qdev_prop_set_uint16(dev, "id2", 0x00); 1115 qdev_prop_set_uint16(dev, "id3", 0x00); 1116 qdev_prop_set_string(dev, "name", name); 1117 object_property_add_child(OBJECT(vms), name, OBJECT(dev)); 1118 object_property_add_alias(OBJECT(vms), alias_prop_name, 1119 OBJECT(dev), "drive"); 1120 return PFLASH_CFI01(dev); 1121 } 1122 1123 static void virt_flash_create(VirtMachineState *vms) 1124 { 1125 vms->flash[0] = virt_flash_create1(vms, "virt.flash0", "pflash0"); 1126 vms->flash[1] = virt_flash_create1(vms, "virt.flash1", "pflash1"); 1127 } 1128 1129 static void virt_flash_map1(PFlashCFI01 *flash, 1130 hwaddr base, hwaddr size, 1131 MemoryRegion *sysmem) 1132 { 1133 DeviceState *dev = DEVICE(flash); 1134 1135 assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE)); 1136 assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 1137 qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE); 1138 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1139 1140 memory_region_add_subregion(sysmem, base, 1141 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1142 0)); 1143 } 1144 1145 static void virt_flash_map(VirtMachineState *vms, 1146 MemoryRegion *sysmem, 1147 MemoryRegion *secure_sysmem) 1148 { 1149 /* 1150 * Map two flash devices to fill the VIRT_FLASH space in the memmap. 1151 * sysmem is the system memory space. secure_sysmem is the secure view 1152 * of the system, and the first flash device should be made visible only 1153 * there. The second flash device is visible to both secure and nonsecure. 1154 * If sysmem == secure_sysmem this means there is no separate Secure 1155 * address space and both flash devices are generally visible. 1156 */ 1157 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1158 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1159 1160 virt_flash_map1(vms->flash[0], flashbase, flashsize, 1161 secure_sysmem); 1162 virt_flash_map1(vms->flash[1], flashbase + flashsize, flashsize, 1163 sysmem); 1164 } 1165 1166 static void virt_flash_fdt(VirtMachineState *vms, 1167 MemoryRegion *sysmem, 1168 MemoryRegion *secure_sysmem) 1169 { 1170 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1171 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1172 MachineState *ms = MACHINE(vms); 1173 char *nodename; 1174 1175 if (sysmem == secure_sysmem) { 1176 /* Report both flash devices as a single node in the DT */ 1177 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase); 1178 qemu_fdt_add_subnode(ms->fdt, nodename); 1179 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1180 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1181 2, flashbase, 2, flashsize, 1182 2, flashbase + flashsize, 2, flashsize); 1183 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1184 g_free(nodename); 1185 } else { 1186 /* 1187 * Report the devices as separate nodes so we can mark one as 1188 * only visible to the secure world. 1189 */ 1190 nodename = g_strdup_printf("/secflash@%" PRIx64, flashbase); 1191 qemu_fdt_add_subnode(ms->fdt, nodename); 1192 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1193 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1194 2, flashbase, 2, flashsize); 1195 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1196 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1197 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1198 g_free(nodename); 1199 1200 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase + flashsize); 1201 qemu_fdt_add_subnode(ms->fdt, nodename); 1202 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1203 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1204 2, flashbase + flashsize, 2, flashsize); 1205 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1206 g_free(nodename); 1207 } 1208 } 1209 1210 static bool virt_firmware_init(VirtMachineState *vms, 1211 MemoryRegion *sysmem, 1212 MemoryRegion *secure_sysmem) 1213 { 1214 int i; 1215 const char *bios_name; 1216 BlockBackend *pflash_blk0; 1217 1218 /* Map legacy -drive if=pflash to machine properties */ 1219 for (i = 0; i < ARRAY_SIZE(vms->flash); i++) { 1220 pflash_cfi01_legacy_drive(vms->flash[i], 1221 drive_get(IF_PFLASH, 0, i)); 1222 } 1223 1224 virt_flash_map(vms, sysmem, secure_sysmem); 1225 1226 pflash_blk0 = pflash_cfi01_get_blk(vms->flash[0]); 1227 1228 bios_name = MACHINE(vms)->firmware; 1229 if (bios_name) { 1230 char *fname; 1231 MemoryRegion *mr; 1232 int image_size; 1233 1234 if (pflash_blk0) { 1235 error_report("The contents of the first flash device may be " 1236 "specified with -bios or with -drive if=pflash... " 1237 "but you cannot use both options at once"); 1238 exit(1); 1239 } 1240 1241 /* Fall back to -bios */ 1242 1243 fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 1244 if (!fname) { 1245 error_report("Could not find ROM image '%s'", bios_name); 1246 exit(1); 1247 } 1248 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(vms->flash[0]), 0); 1249 image_size = load_image_mr(fname, mr); 1250 g_free(fname); 1251 if (image_size < 0) { 1252 error_report("Could not load ROM image '%s'", bios_name); 1253 exit(1); 1254 } 1255 } 1256 1257 return pflash_blk0 || bios_name; 1258 } 1259 1260 static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) 1261 { 1262 MachineState *ms = MACHINE(vms); 1263 hwaddr base = vms->memmap[VIRT_FW_CFG].base; 1264 hwaddr size = vms->memmap[VIRT_FW_CFG].size; 1265 FWCfgState *fw_cfg; 1266 char *nodename; 1267 1268 fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, as); 1269 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); 1270 1271 nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); 1272 qemu_fdt_add_subnode(ms->fdt, nodename); 1273 qemu_fdt_setprop_string(ms->fdt, nodename, 1274 "compatible", "qemu,fw-cfg-mmio"); 1275 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1276 2, base, 2, size); 1277 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1278 g_free(nodename); 1279 return fw_cfg; 1280 } 1281 1282 static void create_pcie_irq_map(const MachineState *ms, 1283 uint32_t gic_phandle, 1284 int first_irq, const char *nodename) 1285 { 1286 int devfn, pin; 1287 uint32_t full_irq_map[4 * 4 * 10] = { 0 }; 1288 uint32_t *irq_map = full_irq_map; 1289 1290 for (devfn = 0; devfn <= 0x18; devfn += 0x8) { 1291 for (pin = 0; pin < 4; pin++) { 1292 int irq_type = GIC_FDT_IRQ_TYPE_SPI; 1293 int irq_nr = first_irq + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS); 1294 int irq_level = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 1295 int i; 1296 1297 uint32_t map[] = { 1298 devfn << 8, 0, 0, /* devfn */ 1299 pin + 1, /* PCI pin */ 1300 gic_phandle, 0, 0, irq_type, irq_nr, irq_level }; /* GIC irq */ 1301 1302 /* Convert map to big endian */ 1303 for (i = 0; i < 10; i++) { 1304 irq_map[i] = cpu_to_be32(map[i]); 1305 } 1306 irq_map += 10; 1307 } 1308 } 1309 1310 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", 1311 full_irq_map, sizeof(full_irq_map)); 1312 1313 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", 1314 cpu_to_be16(PCI_DEVFN(3, 0)), /* Slot 3 */ 1315 0, 0, 1316 0x7 /* PCI irq */); 1317 } 1318 1319 static void create_smmu(const VirtMachineState *vms, 1320 PCIBus *bus) 1321 { 1322 char *node; 1323 const char compat[] = "arm,smmu-v3"; 1324 int irq = vms->irqmap[VIRT_SMMU]; 1325 int i; 1326 hwaddr base = vms->memmap[VIRT_SMMU].base; 1327 hwaddr size = vms->memmap[VIRT_SMMU].size; 1328 const char irq_names[] = "eventq\0priq\0cmdq-sync\0gerror"; 1329 DeviceState *dev; 1330 MachineState *ms = MACHINE(vms); 1331 1332 if (vms->iommu != VIRT_IOMMU_SMMUV3 || !vms->iommu_phandle) { 1333 return; 1334 } 1335 1336 dev = qdev_new("arm-smmuv3"); 1337 1338 object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus), 1339 &error_abort); 1340 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1341 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base); 1342 for (i = 0; i < NUM_SMMU_IRQS; i++) { 1343 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1344 qdev_get_gpio_in(vms->gic, irq + i)); 1345 } 1346 1347 node = g_strdup_printf("/smmuv3@%" PRIx64, base); 1348 qemu_fdt_add_subnode(ms->fdt, node); 1349 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1350 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 2, base, 2, size); 1351 1352 qemu_fdt_setprop_cells(ms->fdt, node, "interrupts", 1353 GIC_FDT_IRQ_TYPE_SPI, irq , GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1354 GIC_FDT_IRQ_TYPE_SPI, irq + 1, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1355 GIC_FDT_IRQ_TYPE_SPI, irq + 2, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1356 GIC_FDT_IRQ_TYPE_SPI, irq + 3, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1357 1358 qemu_fdt_setprop(ms->fdt, node, "interrupt-names", irq_names, 1359 sizeof(irq_names)); 1360 1361 qemu_fdt_setprop_cell(ms->fdt, node, "clocks", vms->clock_phandle); 1362 qemu_fdt_setprop_string(ms->fdt, node, "clock-names", "apb_pclk"); 1363 qemu_fdt_setprop(ms->fdt, node, "dma-coherent", NULL, 0); 1364 1365 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1366 1367 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1368 g_free(node); 1369 } 1370 1371 static void create_virtio_iommu_dt_bindings(VirtMachineState *vms) 1372 { 1373 const char compat[] = "virtio,pci-iommu"; 1374 uint16_t bdf = vms->virtio_iommu_bdf; 1375 MachineState *ms = MACHINE(vms); 1376 char *node; 1377 1378 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1379 1380 node = g_strdup_printf("%s/virtio_iommu@%d", vms->pciehb_nodename, bdf); 1381 qemu_fdt_add_subnode(ms->fdt, node); 1382 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1383 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 1384 1, bdf << 8, 1, 0, 1, 0, 1385 1, 0, 1, 0); 1386 1387 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1388 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1389 g_free(node); 1390 1391 qemu_fdt_setprop_cells(ms->fdt, vms->pciehb_nodename, "iommu-map", 1392 0x0, vms->iommu_phandle, 0x0, bdf, 1393 bdf + 1, vms->iommu_phandle, bdf + 1, 0xffff - bdf); 1394 } 1395 1396 static void create_pcie(VirtMachineState *vms) 1397 { 1398 hwaddr base_mmio = vms->memmap[VIRT_PCIE_MMIO].base; 1399 hwaddr size_mmio = vms->memmap[VIRT_PCIE_MMIO].size; 1400 hwaddr base_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].base; 1401 hwaddr size_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].size; 1402 hwaddr base_pio = vms->memmap[VIRT_PCIE_PIO].base; 1403 hwaddr size_pio = vms->memmap[VIRT_PCIE_PIO].size; 1404 hwaddr base_ecam, size_ecam; 1405 hwaddr base = base_mmio; 1406 int nr_pcie_buses; 1407 int irq = vms->irqmap[VIRT_PCIE]; 1408 MemoryRegion *mmio_alias; 1409 MemoryRegion *mmio_reg; 1410 MemoryRegion *ecam_alias; 1411 MemoryRegion *ecam_reg; 1412 DeviceState *dev; 1413 char *nodename; 1414 int i, ecam_id; 1415 PCIHostState *pci; 1416 MachineState *ms = MACHINE(vms); 1417 1418 dev = qdev_new(TYPE_GPEX_HOST); 1419 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1420 1421 ecam_id = VIRT_ECAM_ID(vms->highmem_ecam); 1422 base_ecam = vms->memmap[ecam_id].base; 1423 size_ecam = vms->memmap[ecam_id].size; 1424 nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; 1425 /* Map only the first size_ecam bytes of ECAM space */ 1426 ecam_alias = g_new0(MemoryRegion, 1); 1427 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 1428 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 1429 ecam_reg, 0, size_ecam); 1430 memory_region_add_subregion(get_system_memory(), base_ecam, ecam_alias); 1431 1432 /* Map the MMIO window into system address space so as to expose 1433 * the section of PCI MMIO space which starts at the same base address 1434 * (ie 1:1 mapping for that part of PCI MMIO space visible through 1435 * the window). 1436 */ 1437 mmio_alias = g_new0(MemoryRegion, 1); 1438 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 1439 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 1440 mmio_reg, base_mmio, size_mmio); 1441 memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias); 1442 1443 if (vms->highmem_mmio) { 1444 /* Map high MMIO space */ 1445 MemoryRegion *high_mmio_alias = g_new0(MemoryRegion, 1); 1446 1447 memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", 1448 mmio_reg, base_mmio_high, size_mmio_high); 1449 memory_region_add_subregion(get_system_memory(), base_mmio_high, 1450 high_mmio_alias); 1451 } 1452 1453 /* Map IO port space */ 1454 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); 1455 1456 for (i = 0; i < GPEX_NUM_IRQS; i++) { 1457 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1458 qdev_get_gpio_in(vms->gic, irq + i)); 1459 gpex_set_irq_num(GPEX_HOST(dev), i, irq + i); 1460 } 1461 1462 pci = PCI_HOST_BRIDGE(dev); 1463 pci->bypass_iommu = vms->default_bus_bypass_iommu; 1464 vms->bus = pci->bus; 1465 if (vms->bus) { 1466 for (i = 0; i < nb_nics; i++) { 1467 NICInfo *nd = &nd_table[i]; 1468 1469 if (!nd->model) { 1470 nd->model = g_strdup("virtio"); 1471 } 1472 1473 pci_nic_init_nofail(nd, pci->bus, nd->model, NULL); 1474 } 1475 } 1476 1477 nodename = vms->pciehb_nodename = g_strdup_printf("/pcie@%" PRIx64, base); 1478 qemu_fdt_add_subnode(ms->fdt, nodename); 1479 qemu_fdt_setprop_string(ms->fdt, nodename, 1480 "compatible", "pci-host-ecam-generic"); 1481 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); 1482 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); 1483 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); 1484 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); 1485 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, 1486 nr_pcie_buses - 1); 1487 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1488 1489 if (vms->msi_phandle) { 1490 qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-parent", 1491 vms->msi_phandle); 1492 } 1493 1494 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1495 2, base_ecam, 2, size_ecam); 1496 1497 if (vms->highmem_mmio) { 1498 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1499 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1500 2, base_pio, 2, size_pio, 1501 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1502 2, base_mmio, 2, size_mmio, 1503 1, FDT_PCI_RANGE_MMIO_64BIT, 1504 2, base_mmio_high, 1505 2, base_mmio_high, 2, size_mmio_high); 1506 } else { 1507 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1508 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1509 2, base_pio, 2, size_pio, 1510 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1511 2, base_mmio, 2, size_mmio); 1512 } 1513 1514 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); 1515 create_pcie_irq_map(ms, vms->gic_phandle, irq, nodename); 1516 1517 if (vms->iommu) { 1518 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1519 1520 switch (vms->iommu) { 1521 case VIRT_IOMMU_SMMUV3: 1522 create_smmu(vms, vms->bus); 1523 qemu_fdt_setprop_cells(ms->fdt, nodename, "iommu-map", 1524 0x0, vms->iommu_phandle, 0x0, 0x10000); 1525 break; 1526 default: 1527 g_assert_not_reached(); 1528 } 1529 } 1530 } 1531 1532 static void create_platform_bus(VirtMachineState *vms) 1533 { 1534 DeviceState *dev; 1535 SysBusDevice *s; 1536 int i; 1537 MemoryRegion *sysmem = get_system_memory(); 1538 1539 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 1540 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 1541 qdev_prop_set_uint32(dev, "num_irqs", PLATFORM_BUS_NUM_IRQS); 1542 qdev_prop_set_uint32(dev, "mmio_size", vms->memmap[VIRT_PLATFORM_BUS].size); 1543 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1544 vms->platform_bus_dev = dev; 1545 1546 s = SYS_BUS_DEVICE(dev); 1547 for (i = 0; i < PLATFORM_BUS_NUM_IRQS; i++) { 1548 int irq = vms->irqmap[VIRT_PLATFORM_BUS] + i; 1549 sysbus_connect_irq(s, i, qdev_get_gpio_in(vms->gic, irq)); 1550 } 1551 1552 memory_region_add_subregion(sysmem, 1553 vms->memmap[VIRT_PLATFORM_BUS].base, 1554 sysbus_mmio_get_region(s, 0)); 1555 } 1556 1557 static void create_tag_ram(MemoryRegion *tag_sysmem, 1558 hwaddr base, hwaddr size, 1559 const char *name) 1560 { 1561 MemoryRegion *tagram = g_new(MemoryRegion, 1); 1562 1563 memory_region_init_ram(tagram, NULL, name, size / 32, &error_fatal); 1564 memory_region_add_subregion(tag_sysmem, base / 32, tagram); 1565 } 1566 1567 static void create_secure_ram(VirtMachineState *vms, 1568 MemoryRegion *secure_sysmem, 1569 MemoryRegion *secure_tag_sysmem) 1570 { 1571 MemoryRegion *secram = g_new(MemoryRegion, 1); 1572 char *nodename; 1573 hwaddr base = vms->memmap[VIRT_SECURE_MEM].base; 1574 hwaddr size = vms->memmap[VIRT_SECURE_MEM].size; 1575 MachineState *ms = MACHINE(vms); 1576 1577 memory_region_init_ram(secram, NULL, "virt.secure-ram", size, 1578 &error_fatal); 1579 memory_region_add_subregion(secure_sysmem, base, secram); 1580 1581 nodename = g_strdup_printf("/secram@%" PRIx64, base); 1582 qemu_fdt_add_subnode(ms->fdt, nodename); 1583 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); 1584 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 1585 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1586 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1587 1588 if (secure_tag_sysmem) { 1589 create_tag_ram(secure_tag_sysmem, base, size, "mach-virt.secure-tag"); 1590 } 1591 1592 g_free(nodename); 1593 } 1594 1595 static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size) 1596 { 1597 const VirtMachineState *board = container_of(binfo, VirtMachineState, 1598 bootinfo); 1599 MachineState *ms = MACHINE(board); 1600 1601 1602 *fdt_size = board->fdt_size; 1603 return ms->fdt; 1604 } 1605 1606 static void virt_build_smbios(VirtMachineState *vms) 1607 { 1608 MachineClass *mc = MACHINE_GET_CLASS(vms); 1609 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1610 uint8_t *smbios_tables, *smbios_anchor; 1611 size_t smbios_tables_len, smbios_anchor_len; 1612 const char *product = "QEMU Virtual Machine"; 1613 1614 if (kvm_enabled()) { 1615 product = "KVM Virtual Machine"; 1616 } 1617 1618 smbios_set_defaults("QEMU", product, 1619 vmc->smbios_old_sys_ver ? "1.0" : mc->name, false, 1620 true, SMBIOS_ENTRY_POINT_TYPE_64); 1621 1622 smbios_get_tables(MACHINE(vms), NULL, 0, 1623 &smbios_tables, &smbios_tables_len, 1624 &smbios_anchor, &smbios_anchor_len, 1625 &error_fatal); 1626 1627 if (smbios_anchor) { 1628 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-tables", 1629 smbios_tables, smbios_tables_len); 1630 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-anchor", 1631 smbios_anchor, smbios_anchor_len); 1632 } 1633 } 1634 1635 static 1636 void virt_machine_done(Notifier *notifier, void *data) 1637 { 1638 VirtMachineState *vms = container_of(notifier, VirtMachineState, 1639 machine_done); 1640 MachineState *ms = MACHINE(vms); 1641 ARMCPU *cpu = ARM_CPU(first_cpu); 1642 struct arm_boot_info *info = &vms->bootinfo; 1643 AddressSpace *as = arm_boot_address_space(cpu, info); 1644 1645 /* 1646 * If the user provided a dtb, we assume the dynamic sysbus nodes 1647 * already are integrated there. This corresponds to a use case where 1648 * the dynamic sysbus nodes are complex and their generation is not yet 1649 * supported. In that case the user can take charge of the guest dt 1650 * while qemu takes charge of the qom stuff. 1651 */ 1652 if (info->dtb_filename == NULL) { 1653 platform_bus_add_all_fdt_nodes(ms->fdt, "/intc", 1654 vms->memmap[VIRT_PLATFORM_BUS].base, 1655 vms->memmap[VIRT_PLATFORM_BUS].size, 1656 vms->irqmap[VIRT_PLATFORM_BUS]); 1657 } 1658 if (arm_load_dtb(info->dtb_start, info, info->dtb_limit, as, ms) < 0) { 1659 exit(1); 1660 } 1661 1662 fw_cfg_add_extra_pci_roots(vms->bus, vms->fw_cfg); 1663 1664 virt_acpi_setup(vms); 1665 virt_build_smbios(vms); 1666 } 1667 1668 static uint64_t virt_cpu_mp_affinity(VirtMachineState *vms, int idx) 1669 { 1670 uint8_t clustersz = ARM_DEFAULT_CPUS_PER_CLUSTER; 1671 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1672 1673 if (!vmc->disallow_affinity_adjustment) { 1674 /* Adjust MPIDR like 64-bit KVM hosts, which incorporate the 1675 * GIC's target-list limitations. 32-bit KVM hosts currently 1676 * always create clusters of 4 CPUs, but that is expected to 1677 * change when they gain support for gicv3. When KVM is enabled 1678 * it will override the changes we make here, therefore our 1679 * purposes are to make TCG consistent (with 64-bit KVM hosts) 1680 * and to improve SGI efficiency. 1681 */ 1682 if (vms->gic_version == VIRT_GIC_VERSION_2) { 1683 clustersz = GIC_TARGETLIST_BITS; 1684 } else { 1685 clustersz = GICV3_TARGETLIST_BITS; 1686 } 1687 } 1688 return arm_cpu_mp_affinity(idx, clustersz); 1689 } 1690 1691 static void virt_set_memmap(VirtMachineState *vms, int pa_bits) 1692 { 1693 MachineState *ms = MACHINE(vms); 1694 hwaddr base, device_memory_base, device_memory_size, memtop; 1695 int i; 1696 1697 vms->memmap = extended_memmap; 1698 1699 for (i = 0; i < ARRAY_SIZE(base_memmap); i++) { 1700 vms->memmap[i] = base_memmap[i]; 1701 } 1702 1703 if (ms->ram_slots > ACPI_MAX_RAM_SLOTS) { 1704 error_report("unsupported number of memory slots: %"PRIu64, 1705 ms->ram_slots); 1706 exit(EXIT_FAILURE); 1707 } 1708 1709 /* 1710 * !highmem is exactly the same as limiting the PA space to 32bit, 1711 * irrespective of the underlying capabilities of the HW. 1712 */ 1713 if (!vms->highmem) { 1714 pa_bits = 32; 1715 } 1716 1717 /* 1718 * We compute the base of the high IO region depending on the 1719 * amount of initial and device memory. The device memory start/size 1720 * is aligned on 1GiB. We never put the high IO region below 256GiB 1721 * so that if maxram_size is < 255GiB we keep the legacy memory map. 1722 * The device region size assumes 1GiB page max alignment per slot. 1723 */ 1724 device_memory_base = 1725 ROUND_UP(vms->memmap[VIRT_MEM].base + ms->ram_size, GiB); 1726 device_memory_size = ms->maxram_size - ms->ram_size + ms->ram_slots * GiB; 1727 1728 /* Base address of the high IO region */ 1729 memtop = base = device_memory_base + ROUND_UP(device_memory_size, GiB); 1730 if (memtop > BIT_ULL(pa_bits)) { 1731 error_report("Addressing limited to %d bits, but memory exceeds it by %llu bytes\n", 1732 pa_bits, memtop - BIT_ULL(pa_bits)); 1733 exit(EXIT_FAILURE); 1734 } 1735 if (base < device_memory_base) { 1736 error_report("maxmem/slots too huge"); 1737 exit(EXIT_FAILURE); 1738 } 1739 if (base < vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES) { 1740 base = vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES; 1741 } 1742 1743 /* We know for sure that at least the memory fits in the PA space */ 1744 vms->highest_gpa = memtop - 1; 1745 1746 for (i = VIRT_LOWMEMMAP_LAST; i < ARRAY_SIZE(extended_memmap); i++) { 1747 hwaddr size = extended_memmap[i].size; 1748 bool fits; 1749 1750 base = ROUND_UP(base, size); 1751 vms->memmap[i].base = base; 1752 vms->memmap[i].size = size; 1753 1754 /* 1755 * Check each device to see if they fit in the PA space, 1756 * moving highest_gpa as we go. 1757 * 1758 * For each device that doesn't fit, disable it. 1759 */ 1760 fits = (base + size) <= BIT_ULL(pa_bits); 1761 if (fits) { 1762 vms->highest_gpa = base + size - 1; 1763 } 1764 1765 switch (i) { 1766 case VIRT_HIGH_GIC_REDIST2: 1767 vms->highmem_redists &= fits; 1768 break; 1769 case VIRT_HIGH_PCIE_ECAM: 1770 vms->highmem_ecam &= fits; 1771 break; 1772 case VIRT_HIGH_PCIE_MMIO: 1773 vms->highmem_mmio &= fits; 1774 break; 1775 } 1776 1777 base += size; 1778 } 1779 1780 if (device_memory_size > 0) { 1781 ms->device_memory = g_malloc0(sizeof(*ms->device_memory)); 1782 ms->device_memory->base = device_memory_base; 1783 memory_region_init(&ms->device_memory->mr, OBJECT(vms), 1784 "device-memory", device_memory_size); 1785 } 1786 } 1787 1788 /* 1789 * finalize_gic_version - Determines the final gic_version 1790 * according to the gic-version property 1791 * 1792 * Default GIC type is v2 1793 */ 1794 static void finalize_gic_version(VirtMachineState *vms) 1795 { 1796 unsigned int max_cpus = MACHINE(vms)->smp.max_cpus; 1797 1798 if (kvm_enabled()) { 1799 int probe_bitmap; 1800 1801 if (!kvm_irqchip_in_kernel()) { 1802 switch (vms->gic_version) { 1803 case VIRT_GIC_VERSION_HOST: 1804 warn_report( 1805 "gic-version=host not relevant with kernel-irqchip=off " 1806 "as only userspace GICv2 is supported. Using v2 ..."); 1807 return; 1808 case VIRT_GIC_VERSION_MAX: 1809 case VIRT_GIC_VERSION_NOSEL: 1810 vms->gic_version = VIRT_GIC_VERSION_2; 1811 return; 1812 case VIRT_GIC_VERSION_2: 1813 return; 1814 case VIRT_GIC_VERSION_3: 1815 error_report( 1816 "gic-version=3 is not supported with kernel-irqchip=off"); 1817 exit(1); 1818 case VIRT_GIC_VERSION_4: 1819 error_report( 1820 "gic-version=4 is not supported with kernel-irqchip=off"); 1821 exit(1); 1822 } 1823 } 1824 1825 probe_bitmap = kvm_arm_vgic_probe(); 1826 if (!probe_bitmap) { 1827 error_report("Unable to determine GIC version supported by host"); 1828 exit(1); 1829 } 1830 1831 switch (vms->gic_version) { 1832 case VIRT_GIC_VERSION_HOST: 1833 case VIRT_GIC_VERSION_MAX: 1834 if (probe_bitmap & KVM_ARM_VGIC_V3) { 1835 vms->gic_version = VIRT_GIC_VERSION_3; 1836 } else { 1837 vms->gic_version = VIRT_GIC_VERSION_2; 1838 } 1839 return; 1840 case VIRT_GIC_VERSION_NOSEL: 1841 if ((probe_bitmap & KVM_ARM_VGIC_V2) && max_cpus <= GIC_NCPU) { 1842 vms->gic_version = VIRT_GIC_VERSION_2; 1843 } else if (probe_bitmap & KVM_ARM_VGIC_V3) { 1844 /* 1845 * in case the host does not support v2 in-kernel emulation or 1846 * the end-user requested more than 8 VCPUs we now default 1847 * to v3. In any case defaulting to v2 would be broken. 1848 */ 1849 vms->gic_version = VIRT_GIC_VERSION_3; 1850 } else if (max_cpus > GIC_NCPU) { 1851 error_report("host only supports in-kernel GICv2 emulation " 1852 "but more than 8 vcpus are requested"); 1853 exit(1); 1854 } 1855 break; 1856 case VIRT_GIC_VERSION_2: 1857 case VIRT_GIC_VERSION_3: 1858 break; 1859 case VIRT_GIC_VERSION_4: 1860 error_report("gic-version=4 is not supported with KVM"); 1861 exit(1); 1862 } 1863 1864 /* Check chosen version is effectively supported by the host */ 1865 if (vms->gic_version == VIRT_GIC_VERSION_2 && 1866 !(probe_bitmap & KVM_ARM_VGIC_V2)) { 1867 error_report("host does not support in-kernel GICv2 emulation"); 1868 exit(1); 1869 } else if (vms->gic_version == VIRT_GIC_VERSION_3 && 1870 !(probe_bitmap & KVM_ARM_VGIC_V3)) { 1871 error_report("host does not support in-kernel GICv3 emulation"); 1872 exit(1); 1873 } 1874 return; 1875 } 1876 1877 /* TCG mode */ 1878 switch (vms->gic_version) { 1879 case VIRT_GIC_VERSION_NOSEL: 1880 vms->gic_version = VIRT_GIC_VERSION_2; 1881 break; 1882 case VIRT_GIC_VERSION_MAX: 1883 if (module_object_class_by_name("arm-gicv3")) { 1884 /* CONFIG_ARM_GICV3_TCG was set */ 1885 if (vms->virt) { 1886 /* GICv4 only makes sense if CPU has EL2 */ 1887 vms->gic_version = VIRT_GIC_VERSION_4; 1888 } else { 1889 vms->gic_version = VIRT_GIC_VERSION_3; 1890 } 1891 } else { 1892 vms->gic_version = VIRT_GIC_VERSION_2; 1893 } 1894 break; 1895 case VIRT_GIC_VERSION_HOST: 1896 error_report("gic-version=host requires KVM"); 1897 exit(1); 1898 case VIRT_GIC_VERSION_4: 1899 if (!vms->virt) { 1900 error_report("gic-version=4 requires virtualization enabled"); 1901 exit(1); 1902 } 1903 break; 1904 case VIRT_GIC_VERSION_2: 1905 case VIRT_GIC_VERSION_3: 1906 break; 1907 } 1908 } 1909 1910 /* 1911 * virt_cpu_post_init() must be called after the CPUs have 1912 * been realized and the GIC has been created. 1913 */ 1914 static void virt_cpu_post_init(VirtMachineState *vms, MemoryRegion *sysmem) 1915 { 1916 int max_cpus = MACHINE(vms)->smp.max_cpus; 1917 bool aarch64, pmu, steal_time; 1918 CPUState *cpu; 1919 1920 aarch64 = object_property_get_bool(OBJECT(first_cpu), "aarch64", NULL); 1921 pmu = object_property_get_bool(OBJECT(first_cpu), "pmu", NULL); 1922 steal_time = object_property_get_bool(OBJECT(first_cpu), 1923 "kvm-steal-time", NULL); 1924 1925 if (kvm_enabled()) { 1926 hwaddr pvtime_reg_base = vms->memmap[VIRT_PVTIME].base; 1927 hwaddr pvtime_reg_size = vms->memmap[VIRT_PVTIME].size; 1928 1929 if (steal_time) { 1930 MemoryRegion *pvtime = g_new(MemoryRegion, 1); 1931 hwaddr pvtime_size = max_cpus * PVTIME_SIZE_PER_CPU; 1932 1933 /* The memory region size must be a multiple of host page size. */ 1934 pvtime_size = REAL_HOST_PAGE_ALIGN(pvtime_size); 1935 1936 if (pvtime_size > pvtime_reg_size) { 1937 error_report("pvtime requires a %" HWADDR_PRId 1938 " byte memory region for %d CPUs," 1939 " but only %" HWADDR_PRId " has been reserved", 1940 pvtime_size, max_cpus, pvtime_reg_size); 1941 exit(1); 1942 } 1943 1944 memory_region_init_ram(pvtime, NULL, "pvtime", pvtime_size, NULL); 1945 memory_region_add_subregion(sysmem, pvtime_reg_base, pvtime); 1946 } 1947 1948 CPU_FOREACH(cpu) { 1949 if (pmu) { 1950 assert(arm_feature(&ARM_CPU(cpu)->env, ARM_FEATURE_PMU)); 1951 if (kvm_irqchip_in_kernel()) { 1952 kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ)); 1953 } 1954 kvm_arm_pmu_init(cpu); 1955 } 1956 if (steal_time) { 1957 kvm_arm_pvtime_init(cpu, pvtime_reg_base + 1958 cpu->cpu_index * PVTIME_SIZE_PER_CPU); 1959 } 1960 } 1961 } else { 1962 if (aarch64 && vms->highmem) { 1963 int requested_pa_size = 64 - clz64(vms->highest_gpa); 1964 int pamax = arm_pamax(ARM_CPU(first_cpu)); 1965 1966 if (pamax < requested_pa_size) { 1967 error_report("VCPU supports less PA bits (%d) than " 1968 "requested by the memory map (%d)", 1969 pamax, requested_pa_size); 1970 exit(1); 1971 } 1972 } 1973 } 1974 } 1975 1976 static void machvirt_init(MachineState *machine) 1977 { 1978 VirtMachineState *vms = VIRT_MACHINE(machine); 1979 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(machine); 1980 MachineClass *mc = MACHINE_GET_CLASS(machine); 1981 const CPUArchIdList *possible_cpus; 1982 MemoryRegion *sysmem = get_system_memory(); 1983 MemoryRegion *secure_sysmem = NULL; 1984 MemoryRegion *tag_sysmem = NULL; 1985 MemoryRegion *secure_tag_sysmem = NULL; 1986 int n, virt_max_cpus; 1987 bool firmware_loaded; 1988 bool aarch64 = true; 1989 bool has_ged = !vmc->no_ged; 1990 unsigned int smp_cpus = machine->smp.cpus; 1991 unsigned int max_cpus = machine->smp.max_cpus; 1992 1993 if (!cpu_type_valid(machine->cpu_type)) { 1994 error_report("mach-virt: CPU type %s not supported", machine->cpu_type); 1995 exit(1); 1996 } 1997 1998 possible_cpus = mc->possible_cpu_arch_ids(machine); 1999 2000 /* 2001 * In accelerated mode, the memory map is computed earlier in kvm_type() 2002 * to create a VM with the right number of IPA bits. 2003 */ 2004 if (!vms->memmap) { 2005 Object *cpuobj; 2006 ARMCPU *armcpu; 2007 int pa_bits; 2008 2009 /* 2010 * Instanciate a temporary CPU object to find out about what 2011 * we are about to deal with. Once this is done, get rid of 2012 * the object. 2013 */ 2014 cpuobj = object_new(possible_cpus->cpus[0].type); 2015 armcpu = ARM_CPU(cpuobj); 2016 2017 pa_bits = arm_pamax(armcpu); 2018 2019 object_unref(cpuobj); 2020 2021 virt_set_memmap(vms, pa_bits); 2022 } 2023 2024 /* We can probe only here because during property set 2025 * KVM is not available yet 2026 */ 2027 finalize_gic_version(vms); 2028 2029 if (vms->secure) { 2030 /* 2031 * The Secure view of the world is the same as the NonSecure, 2032 * but with a few extra devices. Create it as a container region 2033 * containing the system memory at low priority; any secure-only 2034 * devices go in at higher priority and take precedence. 2035 */ 2036 secure_sysmem = g_new(MemoryRegion, 1); 2037 memory_region_init(secure_sysmem, OBJECT(machine), "secure-memory", 2038 UINT64_MAX); 2039 memory_region_add_subregion_overlap(secure_sysmem, 0, sysmem, -1); 2040 } 2041 2042 firmware_loaded = virt_firmware_init(vms, sysmem, 2043 secure_sysmem ?: sysmem); 2044 2045 /* If we have an EL3 boot ROM then the assumption is that it will 2046 * implement PSCI itself, so disable QEMU's internal implementation 2047 * so it doesn't get in the way. Instead of starting secondary 2048 * CPUs in PSCI powerdown state we will start them all running and 2049 * let the boot ROM sort them out. 2050 * The usual case is that we do use QEMU's PSCI implementation; 2051 * if the guest has EL2 then we will use SMC as the conduit, 2052 * and otherwise we will use HVC (for backwards compatibility and 2053 * because if we're using KVM then we must use HVC). 2054 */ 2055 if (vms->secure && firmware_loaded) { 2056 vms->psci_conduit = QEMU_PSCI_CONDUIT_DISABLED; 2057 } else if (vms->virt) { 2058 vms->psci_conduit = QEMU_PSCI_CONDUIT_SMC; 2059 } else { 2060 vms->psci_conduit = QEMU_PSCI_CONDUIT_HVC; 2061 } 2062 2063 /* 2064 * The maximum number of CPUs depends on the GIC version, or on how 2065 * many redistributors we can fit into the memory map (which in turn 2066 * depends on whether this is a GICv3 or v4). 2067 */ 2068 if (vms->gic_version == VIRT_GIC_VERSION_2) { 2069 virt_max_cpus = GIC_NCPU; 2070 } else { 2071 virt_max_cpus = virt_redist_capacity(vms, VIRT_GIC_REDIST) + 2072 virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 2073 } 2074 2075 if (max_cpus > virt_max_cpus) { 2076 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs " 2077 "supported by machine 'mach-virt' (%d)", 2078 max_cpus, virt_max_cpus); 2079 exit(1); 2080 } 2081 2082 if (vms->secure && (kvm_enabled() || hvf_enabled())) { 2083 error_report("mach-virt: %s does not support providing " 2084 "Security extensions (TrustZone) to the guest CPU", 2085 kvm_enabled() ? "KVM" : "HVF"); 2086 exit(1); 2087 } 2088 2089 if (vms->virt && (kvm_enabled() || hvf_enabled())) { 2090 error_report("mach-virt: %s does not support providing " 2091 "Virtualization extensions to the guest CPU", 2092 kvm_enabled() ? "KVM" : "HVF"); 2093 exit(1); 2094 } 2095 2096 if (vms->mte && (kvm_enabled() || hvf_enabled())) { 2097 error_report("mach-virt: %s does not support providing " 2098 "MTE to the guest CPU", 2099 kvm_enabled() ? "KVM" : "HVF"); 2100 exit(1); 2101 } 2102 2103 create_fdt(vms); 2104 2105 assert(possible_cpus->len == max_cpus); 2106 for (n = 0; n < possible_cpus->len; n++) { 2107 Object *cpuobj; 2108 CPUState *cs; 2109 2110 if (n >= smp_cpus) { 2111 break; 2112 } 2113 2114 cpuobj = object_new(possible_cpus->cpus[n].type); 2115 object_property_set_int(cpuobj, "mp-affinity", 2116 possible_cpus->cpus[n].arch_id, NULL); 2117 2118 cs = CPU(cpuobj); 2119 cs->cpu_index = n; 2120 2121 numa_cpu_pre_plug(&possible_cpus->cpus[cs->cpu_index], DEVICE(cpuobj), 2122 &error_fatal); 2123 2124 aarch64 &= object_property_get_bool(cpuobj, "aarch64", NULL); 2125 2126 if (!vms->secure) { 2127 object_property_set_bool(cpuobj, "has_el3", false, NULL); 2128 } 2129 2130 if (!vms->virt && object_property_find(cpuobj, "has_el2")) { 2131 object_property_set_bool(cpuobj, "has_el2", false, NULL); 2132 } 2133 2134 if (vmc->kvm_no_adjvtime && 2135 object_property_find(cpuobj, "kvm-no-adjvtime")) { 2136 object_property_set_bool(cpuobj, "kvm-no-adjvtime", true, NULL); 2137 } 2138 2139 if (vmc->no_kvm_steal_time && 2140 object_property_find(cpuobj, "kvm-steal-time")) { 2141 object_property_set_bool(cpuobj, "kvm-steal-time", false, NULL); 2142 } 2143 2144 if (vmc->no_pmu && object_property_find(cpuobj, "pmu")) { 2145 object_property_set_bool(cpuobj, "pmu", false, NULL); 2146 } 2147 2148 if (vmc->no_tcg_lpa2 && object_property_find(cpuobj, "lpa2")) { 2149 object_property_set_bool(cpuobj, "lpa2", false, NULL); 2150 } 2151 2152 if (object_property_find(cpuobj, "reset-cbar")) { 2153 object_property_set_int(cpuobj, "reset-cbar", 2154 vms->memmap[VIRT_CPUPERIPHS].base, 2155 &error_abort); 2156 } 2157 2158 object_property_set_link(cpuobj, "memory", OBJECT(sysmem), 2159 &error_abort); 2160 if (vms->secure) { 2161 object_property_set_link(cpuobj, "secure-memory", 2162 OBJECT(secure_sysmem), &error_abort); 2163 } 2164 2165 if (vms->mte) { 2166 /* Create the memory region only once, but link to all cpus. */ 2167 if (!tag_sysmem) { 2168 /* 2169 * The property exists only if MemTag is supported. 2170 * If it is, we must allocate the ram to back that up. 2171 */ 2172 if (!object_property_find(cpuobj, "tag-memory")) { 2173 error_report("MTE requested, but not supported " 2174 "by the guest CPU"); 2175 exit(1); 2176 } 2177 2178 tag_sysmem = g_new(MemoryRegion, 1); 2179 memory_region_init(tag_sysmem, OBJECT(machine), 2180 "tag-memory", UINT64_MAX / 32); 2181 2182 if (vms->secure) { 2183 secure_tag_sysmem = g_new(MemoryRegion, 1); 2184 memory_region_init(secure_tag_sysmem, OBJECT(machine), 2185 "secure-tag-memory", UINT64_MAX / 32); 2186 2187 /* As with ram, secure-tag takes precedence over tag. */ 2188 memory_region_add_subregion_overlap(secure_tag_sysmem, 0, 2189 tag_sysmem, -1); 2190 } 2191 } 2192 2193 object_property_set_link(cpuobj, "tag-memory", OBJECT(tag_sysmem), 2194 &error_abort); 2195 if (vms->secure) { 2196 object_property_set_link(cpuobj, "secure-tag-memory", 2197 OBJECT(secure_tag_sysmem), 2198 &error_abort); 2199 } 2200 } 2201 2202 qdev_realize(DEVICE(cpuobj), NULL, &error_fatal); 2203 object_unref(cpuobj); 2204 } 2205 fdt_add_timer_nodes(vms); 2206 fdt_add_cpu_nodes(vms); 2207 2208 memory_region_add_subregion(sysmem, vms->memmap[VIRT_MEM].base, 2209 machine->ram); 2210 if (machine->device_memory) { 2211 memory_region_add_subregion(sysmem, machine->device_memory->base, 2212 &machine->device_memory->mr); 2213 } 2214 2215 virt_flash_fdt(vms, sysmem, secure_sysmem ?: sysmem); 2216 2217 create_gic(vms, sysmem); 2218 2219 virt_cpu_post_init(vms, sysmem); 2220 2221 fdt_add_pmu_nodes(vms); 2222 2223 create_uart(vms, VIRT_UART, sysmem, serial_hd(0)); 2224 2225 if (vms->secure) { 2226 create_secure_ram(vms, secure_sysmem, secure_tag_sysmem); 2227 create_uart(vms, VIRT_SECURE_UART, secure_sysmem, serial_hd(1)); 2228 } 2229 2230 if (tag_sysmem) { 2231 create_tag_ram(tag_sysmem, vms->memmap[VIRT_MEM].base, 2232 machine->ram_size, "mach-virt.tag"); 2233 } 2234 2235 vms->highmem_ecam &= (!firmware_loaded || aarch64); 2236 2237 create_rtc(vms); 2238 2239 create_pcie(vms); 2240 2241 if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)) { 2242 vms->acpi_dev = create_acpi_ged(vms); 2243 } else { 2244 create_gpio_devices(vms, VIRT_GPIO, sysmem); 2245 } 2246 2247 if (vms->secure && !vmc->no_secure_gpio) { 2248 create_gpio_devices(vms, VIRT_SECURE_GPIO, secure_sysmem); 2249 } 2250 2251 /* connect powerdown request */ 2252 vms->powerdown_notifier.notify = virt_powerdown_req; 2253 qemu_register_powerdown_notifier(&vms->powerdown_notifier); 2254 2255 /* Create mmio transports, so the user can create virtio backends 2256 * (which will be automatically plugged in to the transports). If 2257 * no backend is created the transport will just sit harmlessly idle. 2258 */ 2259 create_virtio_devices(vms); 2260 2261 vms->fw_cfg = create_fw_cfg(vms, &address_space_memory); 2262 rom_set_fw(vms->fw_cfg); 2263 2264 create_platform_bus(vms); 2265 2266 if (machine->nvdimms_state->is_enabled) { 2267 const struct AcpiGenericAddress arm_virt_nvdimm_acpi_dsmio = { 2268 .space_id = AML_AS_SYSTEM_MEMORY, 2269 .address = vms->memmap[VIRT_NVDIMM_ACPI].base, 2270 .bit_width = NVDIMM_ACPI_IO_LEN << 3 2271 }; 2272 2273 nvdimm_init_acpi_state(machine->nvdimms_state, sysmem, 2274 arm_virt_nvdimm_acpi_dsmio, 2275 vms->fw_cfg, OBJECT(vms)); 2276 } 2277 2278 vms->bootinfo.ram_size = machine->ram_size; 2279 vms->bootinfo.board_id = -1; 2280 vms->bootinfo.loader_start = vms->memmap[VIRT_MEM].base; 2281 vms->bootinfo.get_dtb = machvirt_dtb; 2282 vms->bootinfo.skip_dtb_autoload = true; 2283 vms->bootinfo.firmware_loaded = firmware_loaded; 2284 vms->bootinfo.psci_conduit = vms->psci_conduit; 2285 arm_load_kernel(ARM_CPU(first_cpu), machine, &vms->bootinfo); 2286 2287 vms->machine_done.notify = virt_machine_done; 2288 qemu_add_machine_init_done_notifier(&vms->machine_done); 2289 } 2290 2291 static bool virt_get_secure(Object *obj, Error **errp) 2292 { 2293 VirtMachineState *vms = VIRT_MACHINE(obj); 2294 2295 return vms->secure; 2296 } 2297 2298 static void virt_set_secure(Object *obj, bool value, Error **errp) 2299 { 2300 VirtMachineState *vms = VIRT_MACHINE(obj); 2301 2302 vms->secure = value; 2303 } 2304 2305 static bool virt_get_virt(Object *obj, Error **errp) 2306 { 2307 VirtMachineState *vms = VIRT_MACHINE(obj); 2308 2309 return vms->virt; 2310 } 2311 2312 static void virt_set_virt(Object *obj, bool value, Error **errp) 2313 { 2314 VirtMachineState *vms = VIRT_MACHINE(obj); 2315 2316 vms->virt = value; 2317 } 2318 2319 static bool virt_get_highmem(Object *obj, Error **errp) 2320 { 2321 VirtMachineState *vms = VIRT_MACHINE(obj); 2322 2323 return vms->highmem; 2324 } 2325 2326 static void virt_set_highmem(Object *obj, bool value, Error **errp) 2327 { 2328 VirtMachineState *vms = VIRT_MACHINE(obj); 2329 2330 vms->highmem = value; 2331 } 2332 2333 static bool virt_get_its(Object *obj, Error **errp) 2334 { 2335 VirtMachineState *vms = VIRT_MACHINE(obj); 2336 2337 return vms->its; 2338 } 2339 2340 static void virt_set_its(Object *obj, bool value, Error **errp) 2341 { 2342 VirtMachineState *vms = VIRT_MACHINE(obj); 2343 2344 vms->its = value; 2345 } 2346 2347 static bool virt_get_dtb_randomness(Object *obj, Error **errp) 2348 { 2349 VirtMachineState *vms = VIRT_MACHINE(obj); 2350 2351 return vms->dtb_randomness; 2352 } 2353 2354 static void virt_set_dtb_randomness(Object *obj, bool value, Error **errp) 2355 { 2356 VirtMachineState *vms = VIRT_MACHINE(obj); 2357 2358 vms->dtb_randomness = value; 2359 } 2360 2361 static char *virt_get_oem_id(Object *obj, Error **errp) 2362 { 2363 VirtMachineState *vms = VIRT_MACHINE(obj); 2364 2365 return g_strdup(vms->oem_id); 2366 } 2367 2368 static void virt_set_oem_id(Object *obj, const char *value, Error **errp) 2369 { 2370 VirtMachineState *vms = VIRT_MACHINE(obj); 2371 size_t len = strlen(value); 2372 2373 if (len > 6) { 2374 error_setg(errp, 2375 "User specified oem-id value is bigger than 6 bytes in size"); 2376 return; 2377 } 2378 2379 strncpy(vms->oem_id, value, 6); 2380 } 2381 2382 static char *virt_get_oem_table_id(Object *obj, Error **errp) 2383 { 2384 VirtMachineState *vms = VIRT_MACHINE(obj); 2385 2386 return g_strdup(vms->oem_table_id); 2387 } 2388 2389 static void virt_set_oem_table_id(Object *obj, const char *value, 2390 Error **errp) 2391 { 2392 VirtMachineState *vms = VIRT_MACHINE(obj); 2393 size_t len = strlen(value); 2394 2395 if (len > 8) { 2396 error_setg(errp, 2397 "User specified oem-table-id value is bigger than 8 bytes in size"); 2398 return; 2399 } 2400 strncpy(vms->oem_table_id, value, 8); 2401 } 2402 2403 2404 bool virt_is_acpi_enabled(VirtMachineState *vms) 2405 { 2406 if (vms->acpi == ON_OFF_AUTO_OFF) { 2407 return false; 2408 } 2409 return true; 2410 } 2411 2412 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 2413 void *opaque, Error **errp) 2414 { 2415 VirtMachineState *vms = VIRT_MACHINE(obj); 2416 OnOffAuto acpi = vms->acpi; 2417 2418 visit_type_OnOffAuto(v, name, &acpi, errp); 2419 } 2420 2421 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 2422 void *opaque, Error **errp) 2423 { 2424 VirtMachineState *vms = VIRT_MACHINE(obj); 2425 2426 visit_type_OnOffAuto(v, name, &vms->acpi, errp); 2427 } 2428 2429 static bool virt_get_ras(Object *obj, Error **errp) 2430 { 2431 VirtMachineState *vms = VIRT_MACHINE(obj); 2432 2433 return vms->ras; 2434 } 2435 2436 static void virt_set_ras(Object *obj, bool value, Error **errp) 2437 { 2438 VirtMachineState *vms = VIRT_MACHINE(obj); 2439 2440 vms->ras = value; 2441 } 2442 2443 static bool virt_get_mte(Object *obj, Error **errp) 2444 { 2445 VirtMachineState *vms = VIRT_MACHINE(obj); 2446 2447 return vms->mte; 2448 } 2449 2450 static void virt_set_mte(Object *obj, bool value, Error **errp) 2451 { 2452 VirtMachineState *vms = VIRT_MACHINE(obj); 2453 2454 vms->mte = value; 2455 } 2456 2457 static char *virt_get_gic_version(Object *obj, Error **errp) 2458 { 2459 VirtMachineState *vms = VIRT_MACHINE(obj); 2460 const char *val; 2461 2462 switch (vms->gic_version) { 2463 case VIRT_GIC_VERSION_4: 2464 val = "4"; 2465 break; 2466 case VIRT_GIC_VERSION_3: 2467 val = "3"; 2468 break; 2469 default: 2470 val = "2"; 2471 break; 2472 } 2473 return g_strdup(val); 2474 } 2475 2476 static void virt_set_gic_version(Object *obj, const char *value, Error **errp) 2477 { 2478 VirtMachineState *vms = VIRT_MACHINE(obj); 2479 2480 if (!strcmp(value, "4")) { 2481 vms->gic_version = VIRT_GIC_VERSION_4; 2482 } else if (!strcmp(value, "3")) { 2483 vms->gic_version = VIRT_GIC_VERSION_3; 2484 } else if (!strcmp(value, "2")) { 2485 vms->gic_version = VIRT_GIC_VERSION_2; 2486 } else if (!strcmp(value, "host")) { 2487 vms->gic_version = VIRT_GIC_VERSION_HOST; /* Will probe later */ 2488 } else if (!strcmp(value, "max")) { 2489 vms->gic_version = VIRT_GIC_VERSION_MAX; /* Will probe later */ 2490 } else { 2491 error_setg(errp, "Invalid gic-version value"); 2492 error_append_hint(errp, "Valid values are 3, 2, host, max.\n"); 2493 } 2494 } 2495 2496 static char *virt_get_iommu(Object *obj, Error **errp) 2497 { 2498 VirtMachineState *vms = VIRT_MACHINE(obj); 2499 2500 switch (vms->iommu) { 2501 case VIRT_IOMMU_NONE: 2502 return g_strdup("none"); 2503 case VIRT_IOMMU_SMMUV3: 2504 return g_strdup("smmuv3"); 2505 default: 2506 g_assert_not_reached(); 2507 } 2508 } 2509 2510 static void virt_set_iommu(Object *obj, const char *value, Error **errp) 2511 { 2512 VirtMachineState *vms = VIRT_MACHINE(obj); 2513 2514 if (!strcmp(value, "smmuv3")) { 2515 vms->iommu = VIRT_IOMMU_SMMUV3; 2516 } else if (!strcmp(value, "none")) { 2517 vms->iommu = VIRT_IOMMU_NONE; 2518 } else { 2519 error_setg(errp, "Invalid iommu value"); 2520 error_append_hint(errp, "Valid values are none, smmuv3.\n"); 2521 } 2522 } 2523 2524 static bool virt_get_default_bus_bypass_iommu(Object *obj, Error **errp) 2525 { 2526 VirtMachineState *vms = VIRT_MACHINE(obj); 2527 2528 return vms->default_bus_bypass_iommu; 2529 } 2530 2531 static void virt_set_default_bus_bypass_iommu(Object *obj, bool value, 2532 Error **errp) 2533 { 2534 VirtMachineState *vms = VIRT_MACHINE(obj); 2535 2536 vms->default_bus_bypass_iommu = value; 2537 } 2538 2539 static CpuInstanceProperties 2540 virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index) 2541 { 2542 MachineClass *mc = MACHINE_GET_CLASS(ms); 2543 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 2544 2545 assert(cpu_index < possible_cpus->len); 2546 return possible_cpus->cpus[cpu_index].props; 2547 } 2548 2549 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) 2550 { 2551 int64_t socket_id = ms->possible_cpus->cpus[idx].props.socket_id; 2552 2553 return socket_id % ms->numa_state->num_nodes; 2554 } 2555 2556 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) 2557 { 2558 int n; 2559 unsigned int max_cpus = ms->smp.max_cpus; 2560 VirtMachineState *vms = VIRT_MACHINE(ms); 2561 MachineClass *mc = MACHINE_GET_CLASS(vms); 2562 2563 if (ms->possible_cpus) { 2564 assert(ms->possible_cpus->len == max_cpus); 2565 return ms->possible_cpus; 2566 } 2567 2568 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 2569 sizeof(CPUArchId) * max_cpus); 2570 ms->possible_cpus->len = max_cpus; 2571 for (n = 0; n < ms->possible_cpus->len; n++) { 2572 ms->possible_cpus->cpus[n].type = ms->cpu_type; 2573 ms->possible_cpus->cpus[n].arch_id = 2574 virt_cpu_mp_affinity(vms, n); 2575 2576 assert(!mc->smp_props.dies_supported); 2577 ms->possible_cpus->cpus[n].props.has_socket_id = true; 2578 ms->possible_cpus->cpus[n].props.socket_id = 2579 n / (ms->smp.clusters * ms->smp.cores * ms->smp.threads); 2580 ms->possible_cpus->cpus[n].props.has_cluster_id = true; 2581 ms->possible_cpus->cpus[n].props.cluster_id = 2582 (n / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters; 2583 ms->possible_cpus->cpus[n].props.has_core_id = true; 2584 ms->possible_cpus->cpus[n].props.core_id = 2585 (n / ms->smp.threads) % ms->smp.cores; 2586 ms->possible_cpus->cpus[n].props.has_thread_id = true; 2587 ms->possible_cpus->cpus[n].props.thread_id = 2588 n % ms->smp.threads; 2589 } 2590 return ms->possible_cpus; 2591 } 2592 2593 static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 2594 Error **errp) 2595 { 2596 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2597 const MachineState *ms = MACHINE(hotplug_dev); 2598 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2599 2600 if (!vms->acpi_dev) { 2601 error_setg(errp, 2602 "memory hotplug is not enabled: missing acpi-ged device"); 2603 return; 2604 } 2605 2606 if (vms->mte) { 2607 error_setg(errp, "memory hotplug is not enabled: MTE is enabled"); 2608 return; 2609 } 2610 2611 if (is_nvdimm && !ms->nvdimms_state->is_enabled) { 2612 error_setg(errp, "nvdimm is not enabled: add 'nvdimm=on' to '-M'"); 2613 return; 2614 } 2615 2616 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp); 2617 } 2618 2619 static void virt_memory_plug(HotplugHandler *hotplug_dev, 2620 DeviceState *dev, Error **errp) 2621 { 2622 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2623 MachineState *ms = MACHINE(hotplug_dev); 2624 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2625 2626 pc_dimm_plug(PC_DIMM(dev), MACHINE(vms)); 2627 2628 if (is_nvdimm) { 2629 nvdimm_plug(ms->nvdimms_state); 2630 } 2631 2632 hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev), 2633 dev, &error_abort); 2634 } 2635 2636 static void virt_virtio_md_pci_pre_plug(HotplugHandler *hotplug_dev, 2637 DeviceState *dev, Error **errp) 2638 { 2639 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2640 Error *local_err = NULL; 2641 2642 if (!hotplug_dev2 && dev->hotplugged) { 2643 /* 2644 * Without a bus hotplug handler, we cannot control the plug/unplug 2645 * order. We should never reach this point when hotplugging on ARM. 2646 * However, it's nice to add a safety net, similar to what we have 2647 * on x86. 2648 */ 2649 error_setg(errp, "hotplug of virtio based memory devices not supported" 2650 " on this bus."); 2651 return; 2652 } 2653 /* 2654 * First, see if we can plug this memory device at all. If that 2655 * succeeds, branch of to the actual hotplug handler. 2656 */ 2657 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL, 2658 &local_err); 2659 if (!local_err && hotplug_dev2) { 2660 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err); 2661 } 2662 error_propagate(errp, local_err); 2663 } 2664 2665 static void virt_virtio_md_pci_plug(HotplugHandler *hotplug_dev, 2666 DeviceState *dev, Error **errp) 2667 { 2668 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2669 Error *local_err = NULL; 2670 2671 /* 2672 * Plug the memory device first and then branch off to the actual 2673 * hotplug handler. If that one fails, we can easily undo the memory 2674 * device bits. 2675 */ 2676 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2677 if (hotplug_dev2) { 2678 hotplug_handler_plug(hotplug_dev2, dev, &local_err); 2679 if (local_err) { 2680 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2681 } 2682 } 2683 error_propagate(errp, local_err); 2684 } 2685 2686 static void virt_virtio_md_pci_unplug_request(HotplugHandler *hotplug_dev, 2687 DeviceState *dev, Error **errp) 2688 { 2689 /* We don't support hot unplug of virtio based memory devices */ 2690 error_setg(errp, "virtio based memory devices cannot be unplugged."); 2691 } 2692 2693 2694 static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, 2695 DeviceState *dev, Error **errp) 2696 { 2697 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2698 2699 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2700 virt_memory_pre_plug(hotplug_dev, dev, errp); 2701 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2702 virt_virtio_md_pci_pre_plug(hotplug_dev, dev, errp); 2703 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2704 hwaddr db_start = 0, db_end = 0; 2705 char *resv_prop_str; 2706 2707 if (vms->iommu != VIRT_IOMMU_NONE) { 2708 error_setg(errp, "virt machine does not support multiple IOMMUs"); 2709 return; 2710 } 2711 2712 switch (vms->msi_controller) { 2713 case VIRT_MSI_CTRL_NONE: 2714 return; 2715 case VIRT_MSI_CTRL_ITS: 2716 /* GITS_TRANSLATER page */ 2717 db_start = base_memmap[VIRT_GIC_ITS].base + 0x10000; 2718 db_end = base_memmap[VIRT_GIC_ITS].base + 2719 base_memmap[VIRT_GIC_ITS].size - 1; 2720 break; 2721 case VIRT_MSI_CTRL_GICV2M: 2722 /* MSI_SETSPI_NS page */ 2723 db_start = base_memmap[VIRT_GIC_V2M].base; 2724 db_end = db_start + base_memmap[VIRT_GIC_V2M].size - 1; 2725 break; 2726 } 2727 resv_prop_str = g_strdup_printf("0x%"PRIx64":0x%"PRIx64":%u", 2728 db_start, db_end, 2729 VIRTIO_IOMMU_RESV_MEM_T_MSI); 2730 2731 object_property_set_uint(OBJECT(dev), "len-reserved-regions", 1, errp); 2732 object_property_set_str(OBJECT(dev), "reserved-regions[0]", 2733 resv_prop_str, errp); 2734 g_free(resv_prop_str); 2735 } 2736 } 2737 2738 static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, 2739 DeviceState *dev, Error **errp) 2740 { 2741 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2742 2743 if (vms->platform_bus_dev) { 2744 MachineClass *mc = MACHINE_GET_CLASS(vms); 2745 2746 if (device_is_dynamic_sysbus(mc, dev)) { 2747 platform_bus_link_device(PLATFORM_BUS_DEVICE(vms->platform_bus_dev), 2748 SYS_BUS_DEVICE(dev)); 2749 } 2750 } 2751 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2752 virt_memory_plug(hotplug_dev, dev, errp); 2753 } 2754 2755 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2756 virt_virtio_md_pci_plug(hotplug_dev, dev, errp); 2757 } 2758 2759 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2760 PCIDevice *pdev = PCI_DEVICE(dev); 2761 2762 vms->iommu = VIRT_IOMMU_VIRTIO; 2763 vms->virtio_iommu_bdf = pci_get_bdf(pdev); 2764 create_virtio_iommu_dt_bindings(vms); 2765 } 2766 } 2767 2768 static void virt_dimm_unplug_request(HotplugHandler *hotplug_dev, 2769 DeviceState *dev, Error **errp) 2770 { 2771 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2772 Error *local_err = NULL; 2773 2774 if (!vms->acpi_dev) { 2775 error_setg(&local_err, 2776 "memory hotplug is not enabled: missing acpi-ged device"); 2777 goto out; 2778 } 2779 2780 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 2781 error_setg(&local_err, 2782 "nvdimm device hot unplug is not supported yet."); 2783 goto out; 2784 } 2785 2786 hotplug_handler_unplug_request(HOTPLUG_HANDLER(vms->acpi_dev), dev, 2787 &local_err); 2788 out: 2789 error_propagate(errp, local_err); 2790 } 2791 2792 static void virt_dimm_unplug(HotplugHandler *hotplug_dev, 2793 DeviceState *dev, Error **errp) 2794 { 2795 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2796 Error *local_err = NULL; 2797 2798 hotplug_handler_unplug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &local_err); 2799 if (local_err) { 2800 goto out; 2801 } 2802 2803 pc_dimm_unplug(PC_DIMM(dev), MACHINE(vms)); 2804 qdev_unrealize(dev); 2805 2806 out: 2807 error_propagate(errp, local_err); 2808 } 2809 2810 static void virt_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, 2811 DeviceState *dev, Error **errp) 2812 { 2813 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2814 virt_dimm_unplug_request(hotplug_dev, dev, errp); 2815 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2816 virt_virtio_md_pci_unplug_request(hotplug_dev, dev, errp); 2817 } else { 2818 error_setg(errp, "device unplug request for unsupported device" 2819 " type: %s", object_get_typename(OBJECT(dev))); 2820 } 2821 } 2822 2823 static void virt_machine_device_unplug_cb(HotplugHandler *hotplug_dev, 2824 DeviceState *dev, Error **errp) 2825 { 2826 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2827 virt_dimm_unplug(hotplug_dev, dev, errp); 2828 } else { 2829 error_setg(errp, "virt: device unplug for unsupported device" 2830 " type: %s", object_get_typename(OBJECT(dev))); 2831 } 2832 } 2833 2834 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 2835 DeviceState *dev) 2836 { 2837 MachineClass *mc = MACHINE_GET_CLASS(machine); 2838 2839 if (device_is_dynamic_sysbus(mc, dev) || 2840 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || 2841 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI) || 2842 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2843 return HOTPLUG_HANDLER(machine); 2844 } 2845 return NULL; 2846 } 2847 2848 /* 2849 * for arm64 kvm_type [7-0] encodes the requested number of bits 2850 * in the IPA address space 2851 */ 2852 static int virt_kvm_type(MachineState *ms, const char *type_str) 2853 { 2854 VirtMachineState *vms = VIRT_MACHINE(ms); 2855 int max_vm_pa_size, requested_pa_size; 2856 bool fixed_ipa; 2857 2858 max_vm_pa_size = kvm_arm_get_max_vm_ipa_size(ms, &fixed_ipa); 2859 2860 /* we freeze the memory map to compute the highest gpa */ 2861 virt_set_memmap(vms, max_vm_pa_size); 2862 2863 requested_pa_size = 64 - clz64(vms->highest_gpa); 2864 2865 /* 2866 * KVM requires the IPA size to be at least 32 bits. 2867 */ 2868 if (requested_pa_size < 32) { 2869 requested_pa_size = 32; 2870 } 2871 2872 if (requested_pa_size > max_vm_pa_size) { 2873 error_report("-m and ,maxmem option values " 2874 "require an IPA range (%d bits) larger than " 2875 "the one supported by the host (%d bits)", 2876 requested_pa_size, max_vm_pa_size); 2877 exit(1); 2878 } 2879 /* 2880 * We return the requested PA log size, unless KVM only supports 2881 * the implicit legacy 40b IPA setting, in which case the kvm_type 2882 * must be 0. 2883 */ 2884 return fixed_ipa ? 0 : requested_pa_size; 2885 } 2886 2887 static void virt_machine_class_init(ObjectClass *oc, void *data) 2888 { 2889 MachineClass *mc = MACHINE_CLASS(oc); 2890 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 2891 2892 mc->init = machvirt_init; 2893 /* Start with max_cpus set to 512, which is the maximum supported by KVM. 2894 * The value may be reduced later when we have more information about the 2895 * configuration of the particular instance. 2896 */ 2897 mc->max_cpus = 512; 2898 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_CALXEDA_XGMAC); 2899 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_AMD_XGBE); 2900 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 2901 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_PLATFORM); 2902 #ifdef CONFIG_TPM 2903 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 2904 #endif 2905 mc->block_default_type = IF_VIRTIO; 2906 mc->no_cdrom = 1; 2907 mc->pci_allow_0_address = true; 2908 /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */ 2909 mc->minimum_page_bits = 12; 2910 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; 2911 mc->cpu_index_to_instance_props = virt_cpu_index_to_props; 2912 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15"); 2913 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; 2914 mc->kvm_type = virt_kvm_type; 2915 assert(!mc->get_hotplug_handler); 2916 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 2917 hc->pre_plug = virt_machine_device_pre_plug_cb; 2918 hc->plug = virt_machine_device_plug_cb; 2919 hc->unplug_request = virt_machine_device_unplug_request_cb; 2920 hc->unplug = virt_machine_device_unplug_cb; 2921 mc->nvdimm_supported = true; 2922 mc->smp_props.clusters_supported = true; 2923 mc->auto_enable_numa_with_memhp = true; 2924 mc->auto_enable_numa_with_memdev = true; 2925 mc->default_ram_id = "mach-virt.ram"; 2926 2927 object_class_property_add(oc, "acpi", "OnOffAuto", 2928 virt_get_acpi, virt_set_acpi, 2929 NULL, NULL); 2930 object_class_property_set_description(oc, "acpi", 2931 "Enable ACPI"); 2932 object_class_property_add_bool(oc, "secure", virt_get_secure, 2933 virt_set_secure); 2934 object_class_property_set_description(oc, "secure", 2935 "Set on/off to enable/disable the ARM " 2936 "Security Extensions (TrustZone)"); 2937 2938 object_class_property_add_bool(oc, "virtualization", virt_get_virt, 2939 virt_set_virt); 2940 object_class_property_set_description(oc, "virtualization", 2941 "Set on/off to enable/disable emulating a " 2942 "guest CPU which implements the ARM " 2943 "Virtualization Extensions"); 2944 2945 object_class_property_add_bool(oc, "highmem", virt_get_highmem, 2946 virt_set_highmem); 2947 object_class_property_set_description(oc, "highmem", 2948 "Set on/off to enable/disable using " 2949 "physical address space above 32 bits"); 2950 2951 object_class_property_add_str(oc, "gic-version", virt_get_gic_version, 2952 virt_set_gic_version); 2953 object_class_property_set_description(oc, "gic-version", 2954 "Set GIC version. " 2955 "Valid values are 2, 3, 4, host and max"); 2956 2957 object_class_property_add_str(oc, "iommu", virt_get_iommu, virt_set_iommu); 2958 object_class_property_set_description(oc, "iommu", 2959 "Set the IOMMU type. " 2960 "Valid values are none and smmuv3"); 2961 2962 object_class_property_add_bool(oc, "default-bus-bypass-iommu", 2963 virt_get_default_bus_bypass_iommu, 2964 virt_set_default_bus_bypass_iommu); 2965 object_class_property_set_description(oc, "default-bus-bypass-iommu", 2966 "Set on/off to enable/disable " 2967 "bypass_iommu for default root bus"); 2968 2969 object_class_property_add_bool(oc, "ras", virt_get_ras, 2970 virt_set_ras); 2971 object_class_property_set_description(oc, "ras", 2972 "Set on/off to enable/disable reporting host memory errors " 2973 "to a KVM guest using ACPI and guest external abort exceptions"); 2974 2975 object_class_property_add_bool(oc, "mte", virt_get_mte, virt_set_mte); 2976 object_class_property_set_description(oc, "mte", 2977 "Set on/off to enable/disable emulating a " 2978 "guest CPU which implements the ARM " 2979 "Memory Tagging Extension"); 2980 2981 object_class_property_add_bool(oc, "its", virt_get_its, 2982 virt_set_its); 2983 object_class_property_set_description(oc, "its", 2984 "Set on/off to enable/disable " 2985 "ITS instantiation"); 2986 2987 object_class_property_add_bool(oc, "dtb-randomness", 2988 virt_get_dtb_randomness, 2989 virt_set_dtb_randomness); 2990 object_class_property_set_description(oc, "dtb-randomness", 2991 "Set off to disable passing random or " 2992 "non-deterministic dtb nodes to guest"); 2993 2994 object_class_property_add_bool(oc, "dtb-kaslr-seed", 2995 virt_get_dtb_randomness, 2996 virt_set_dtb_randomness); 2997 object_class_property_set_description(oc, "dtb-kaslr-seed", 2998 "Deprecated synonym of dtb-randomness"); 2999 3000 object_class_property_add_str(oc, "x-oem-id", 3001 virt_get_oem_id, 3002 virt_set_oem_id); 3003 object_class_property_set_description(oc, "x-oem-id", 3004 "Override the default value of field OEMID " 3005 "in ACPI table header." 3006 "The string may be up to 6 bytes in size"); 3007 3008 3009 object_class_property_add_str(oc, "x-oem-table-id", 3010 virt_get_oem_table_id, 3011 virt_set_oem_table_id); 3012 object_class_property_set_description(oc, "x-oem-table-id", 3013 "Override the default value of field OEM Table ID " 3014 "in ACPI table header." 3015 "The string may be up to 8 bytes in size"); 3016 3017 } 3018 3019 static void virt_instance_init(Object *obj) 3020 { 3021 VirtMachineState *vms = VIRT_MACHINE(obj); 3022 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 3023 3024 /* EL3 is disabled by default on virt: this makes us consistent 3025 * between KVM and TCG for this board, and it also allows us to 3026 * boot UEFI blobs which assume no TrustZone support. 3027 */ 3028 vms->secure = false; 3029 3030 /* EL2 is also disabled by default, for similar reasons */ 3031 vms->virt = false; 3032 3033 /* High memory is enabled by default */ 3034 vms->highmem = true; 3035 vms->gic_version = VIRT_GIC_VERSION_NOSEL; 3036 3037 vms->highmem_ecam = !vmc->no_highmem_ecam; 3038 vms->highmem_mmio = true; 3039 vms->highmem_redists = true; 3040 3041 if (vmc->no_its) { 3042 vms->its = false; 3043 } else { 3044 /* Default allows ITS instantiation */ 3045 vms->its = true; 3046 3047 if (vmc->no_tcg_its) { 3048 vms->tcg_its = false; 3049 } else { 3050 vms->tcg_its = true; 3051 } 3052 } 3053 3054 /* Default disallows iommu instantiation */ 3055 vms->iommu = VIRT_IOMMU_NONE; 3056 3057 /* The default root bus is attached to iommu by default */ 3058 vms->default_bus_bypass_iommu = false; 3059 3060 /* Default disallows RAS instantiation */ 3061 vms->ras = false; 3062 3063 /* MTE is disabled by default. */ 3064 vms->mte = false; 3065 3066 /* Supply kaslr-seed and rng-seed by default */ 3067 vms->dtb_randomness = true; 3068 3069 vms->irqmap = a15irqmap; 3070 3071 virt_flash_create(vms); 3072 3073 vms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 3074 vms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 3075 } 3076 3077 static const TypeInfo virt_machine_info = { 3078 .name = TYPE_VIRT_MACHINE, 3079 .parent = TYPE_MACHINE, 3080 .abstract = true, 3081 .instance_size = sizeof(VirtMachineState), 3082 .class_size = sizeof(VirtMachineClass), 3083 .class_init = virt_machine_class_init, 3084 .instance_init = virt_instance_init, 3085 .interfaces = (InterfaceInfo[]) { 3086 { TYPE_HOTPLUG_HANDLER }, 3087 { } 3088 }, 3089 }; 3090 3091 static void machvirt_machine_init(void) 3092 { 3093 type_register_static(&virt_machine_info); 3094 } 3095 type_init(machvirt_machine_init); 3096 3097 static void virt_machine_7_2_options(MachineClass *mc) 3098 { 3099 } 3100 DEFINE_VIRT_MACHINE_AS_LATEST(7, 2) 3101 3102 static void virt_machine_7_1_options(MachineClass *mc) 3103 { 3104 virt_machine_7_2_options(mc); 3105 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 3106 } 3107 DEFINE_VIRT_MACHINE(7, 1) 3108 3109 static void virt_machine_7_0_options(MachineClass *mc) 3110 { 3111 virt_machine_7_1_options(mc); 3112 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 3113 } 3114 DEFINE_VIRT_MACHINE(7, 0) 3115 3116 static void virt_machine_6_2_options(MachineClass *mc) 3117 { 3118 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3119 3120 virt_machine_7_0_options(mc); 3121 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 3122 vmc->no_tcg_lpa2 = true; 3123 } 3124 DEFINE_VIRT_MACHINE(6, 2) 3125 3126 static void virt_machine_6_1_options(MachineClass *mc) 3127 { 3128 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3129 3130 virt_machine_6_2_options(mc); 3131 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 3132 mc->smp_props.prefer_sockets = true; 3133 vmc->no_cpu_topology = true; 3134 3135 /* qemu ITS was introduced with 6.2 */ 3136 vmc->no_tcg_its = true; 3137 } 3138 DEFINE_VIRT_MACHINE(6, 1) 3139 3140 static void virt_machine_6_0_options(MachineClass *mc) 3141 { 3142 virt_machine_6_1_options(mc); 3143 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 3144 } 3145 DEFINE_VIRT_MACHINE(6, 0) 3146 3147 static void virt_machine_5_2_options(MachineClass *mc) 3148 { 3149 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3150 3151 virt_machine_6_0_options(mc); 3152 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 3153 vmc->no_secure_gpio = true; 3154 } 3155 DEFINE_VIRT_MACHINE(5, 2) 3156 3157 static void virt_machine_5_1_options(MachineClass *mc) 3158 { 3159 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3160 3161 virt_machine_5_2_options(mc); 3162 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 3163 vmc->no_kvm_steal_time = true; 3164 } 3165 DEFINE_VIRT_MACHINE(5, 1) 3166 3167 static void virt_machine_5_0_options(MachineClass *mc) 3168 { 3169 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3170 3171 virt_machine_5_1_options(mc); 3172 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 3173 mc->numa_mem_supported = true; 3174 vmc->acpi_expose_flash = true; 3175 mc->auto_enable_numa_with_memdev = false; 3176 } 3177 DEFINE_VIRT_MACHINE(5, 0) 3178 3179 static void virt_machine_4_2_options(MachineClass *mc) 3180 { 3181 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3182 3183 virt_machine_5_0_options(mc); 3184 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 3185 vmc->kvm_no_adjvtime = true; 3186 } 3187 DEFINE_VIRT_MACHINE(4, 2) 3188 3189 static void virt_machine_4_1_options(MachineClass *mc) 3190 { 3191 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3192 3193 virt_machine_4_2_options(mc); 3194 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 3195 vmc->no_ged = true; 3196 mc->auto_enable_numa_with_memhp = false; 3197 } 3198 DEFINE_VIRT_MACHINE(4, 1) 3199 3200 static void virt_machine_4_0_options(MachineClass *mc) 3201 { 3202 virt_machine_4_1_options(mc); 3203 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 3204 } 3205 DEFINE_VIRT_MACHINE(4, 0) 3206 3207 static void virt_machine_3_1_options(MachineClass *mc) 3208 { 3209 virt_machine_4_0_options(mc); 3210 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 3211 } 3212 DEFINE_VIRT_MACHINE(3, 1) 3213 3214 static void virt_machine_3_0_options(MachineClass *mc) 3215 { 3216 virt_machine_3_1_options(mc); 3217 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 3218 } 3219 DEFINE_VIRT_MACHINE(3, 0) 3220 3221 static void virt_machine_2_12_options(MachineClass *mc) 3222 { 3223 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3224 3225 virt_machine_3_0_options(mc); 3226 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 3227 vmc->no_highmem_ecam = true; 3228 mc->max_cpus = 255; 3229 } 3230 DEFINE_VIRT_MACHINE(2, 12) 3231 3232 static void virt_machine_2_11_options(MachineClass *mc) 3233 { 3234 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3235 3236 virt_machine_2_12_options(mc); 3237 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 3238 vmc->smbios_old_sys_ver = true; 3239 } 3240 DEFINE_VIRT_MACHINE(2, 11) 3241 3242 static void virt_machine_2_10_options(MachineClass *mc) 3243 { 3244 virt_machine_2_11_options(mc); 3245 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 3246 /* before 2.11 we never faulted accesses to bad addresses */ 3247 mc->ignore_memory_transaction_failures = true; 3248 } 3249 DEFINE_VIRT_MACHINE(2, 10) 3250 3251 static void virt_machine_2_9_options(MachineClass *mc) 3252 { 3253 virt_machine_2_10_options(mc); 3254 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 3255 } 3256 DEFINE_VIRT_MACHINE(2, 9) 3257 3258 static void virt_machine_2_8_options(MachineClass *mc) 3259 { 3260 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3261 3262 virt_machine_2_9_options(mc); 3263 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 3264 /* For 2.8 and earlier we falsely claimed in the DT that 3265 * our timers were edge-triggered, not level-triggered. 3266 */ 3267 vmc->claim_edge_triggered_timers = true; 3268 } 3269 DEFINE_VIRT_MACHINE(2, 8) 3270 3271 static void virt_machine_2_7_options(MachineClass *mc) 3272 { 3273 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3274 3275 virt_machine_2_8_options(mc); 3276 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 3277 /* ITS was introduced with 2.8 */ 3278 vmc->no_its = true; 3279 /* Stick with 1K pages for migration compatibility */ 3280 mc->minimum_page_bits = 0; 3281 } 3282 DEFINE_VIRT_MACHINE(2, 7) 3283 3284 static void virt_machine_2_6_options(MachineClass *mc) 3285 { 3286 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3287 3288 virt_machine_2_7_options(mc); 3289 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 3290 vmc->disallow_affinity_adjustment = true; 3291 /* Disable PMU for 2.6 as PMU support was first introduced in 2.7 */ 3292 vmc->no_pmu = true; 3293 } 3294 DEFINE_VIRT_MACHINE(2, 6) 3295