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-a35"), 203 ARM_CPU_TYPE_NAME("cortex-a53"), 204 ARM_CPU_TYPE_NAME("cortex-a57"), 205 ARM_CPU_TYPE_NAME("cortex-a72"), 206 ARM_CPU_TYPE_NAME("cortex-a76"), 207 ARM_CPU_TYPE_NAME("a64fx"), 208 ARM_CPU_TYPE_NAME("neoverse-n1"), 209 ARM_CPU_TYPE_NAME("host"), 210 ARM_CPU_TYPE_NAME("max"), 211 }; 212 213 static bool cpu_type_valid(const char *cpu) 214 { 215 int i; 216 217 for (i = 0; i < ARRAY_SIZE(valid_cpus); i++) { 218 if (strcmp(cpu, valid_cpus[i]) == 0) { 219 return true; 220 } 221 } 222 return false; 223 } 224 225 static void create_randomness(MachineState *ms, const char *node) 226 { 227 struct { 228 uint64_t kaslr; 229 uint8_t rng[32]; 230 } seed; 231 232 if (qemu_guest_getrandom(&seed, sizeof(seed), NULL)) { 233 return; 234 } 235 qemu_fdt_setprop_u64(ms->fdt, node, "kaslr-seed", seed.kaslr); 236 qemu_fdt_setprop(ms->fdt, node, "rng-seed", seed.rng, sizeof(seed.rng)); 237 } 238 239 static void create_fdt(VirtMachineState *vms) 240 { 241 MachineState *ms = MACHINE(vms); 242 int nb_numa_nodes = ms->numa_state->num_nodes; 243 void *fdt = create_device_tree(&vms->fdt_size); 244 245 if (!fdt) { 246 error_report("create_device_tree() failed"); 247 exit(1); 248 } 249 250 ms->fdt = fdt; 251 252 /* Header */ 253 qemu_fdt_setprop_string(fdt, "/", "compatible", "linux,dummy-virt"); 254 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); 255 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); 256 qemu_fdt_setprop_string(fdt, "/", "model", "linux,dummy-virt"); 257 258 /* /chosen must exist for load_dtb to fill in necessary properties later */ 259 qemu_fdt_add_subnode(fdt, "/chosen"); 260 if (vms->dtb_randomness) { 261 create_randomness(ms, "/chosen"); 262 } 263 264 if (vms->secure) { 265 qemu_fdt_add_subnode(fdt, "/secure-chosen"); 266 if (vms->dtb_randomness) { 267 create_randomness(ms, "/secure-chosen"); 268 } 269 } 270 271 /* Clock node, for the benefit of the UART. The kernel device tree 272 * binding documentation claims the PL011 node clock properties are 273 * optional but in practice if you omit them the kernel refuses to 274 * probe for the device. 275 */ 276 vms->clock_phandle = qemu_fdt_alloc_phandle(fdt); 277 qemu_fdt_add_subnode(fdt, "/apb-pclk"); 278 qemu_fdt_setprop_string(fdt, "/apb-pclk", "compatible", "fixed-clock"); 279 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "#clock-cells", 0x0); 280 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "clock-frequency", 24000000); 281 qemu_fdt_setprop_string(fdt, "/apb-pclk", "clock-output-names", 282 "clk24mhz"); 283 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vms->clock_phandle); 284 285 if (nb_numa_nodes > 0 && ms->numa_state->have_numa_distance) { 286 int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t); 287 uint32_t *matrix = g_malloc0(size); 288 int idx, i, j; 289 290 for (i = 0; i < nb_numa_nodes; i++) { 291 for (j = 0; j < nb_numa_nodes; j++) { 292 idx = (i * nb_numa_nodes + j) * 3; 293 matrix[idx + 0] = cpu_to_be32(i); 294 matrix[idx + 1] = cpu_to_be32(j); 295 matrix[idx + 2] = 296 cpu_to_be32(ms->numa_state->nodes[i].distance[j]); 297 } 298 } 299 300 qemu_fdt_add_subnode(fdt, "/distance-map"); 301 qemu_fdt_setprop_string(fdt, "/distance-map", "compatible", 302 "numa-distance-map-v1"); 303 qemu_fdt_setprop(fdt, "/distance-map", "distance-matrix", 304 matrix, size); 305 g_free(matrix); 306 } 307 } 308 309 static void fdt_add_timer_nodes(const VirtMachineState *vms) 310 { 311 /* On real hardware these interrupts are level-triggered. 312 * On KVM they were edge-triggered before host kernel version 4.4, 313 * and level-triggered afterwards. 314 * On emulated QEMU they are level-triggered. 315 * 316 * Getting the DTB info about them wrong is awkward for some 317 * guest kernels: 318 * pre-4.8 ignore the DT and leave the interrupt configured 319 * with whatever the GIC reset value (or the bootloader) left it at 320 * 4.8 before rc6 honour the incorrect data by programming it back 321 * into the GIC, causing problems 322 * 4.8rc6 and later ignore the DT and always write "level triggered" 323 * into the GIC 324 * 325 * For backwards-compatibility, virt-2.8 and earlier will continue 326 * to say these are edge-triggered, but later machines will report 327 * the correct information. 328 */ 329 ARMCPU *armcpu; 330 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 331 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 332 MachineState *ms = MACHINE(vms); 333 334 if (vmc->claim_edge_triggered_timers) { 335 irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI; 336 } 337 338 if (vms->gic_version == VIRT_GIC_VERSION_2) { 339 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 340 GIC_FDT_IRQ_PPI_CPU_WIDTH, 341 (1 << MACHINE(vms)->smp.cpus) - 1); 342 } 343 344 qemu_fdt_add_subnode(ms->fdt, "/timer"); 345 346 armcpu = ARM_CPU(qemu_get_cpu(0)); 347 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 348 const char compat[] = "arm,armv8-timer\0arm,armv7-timer"; 349 qemu_fdt_setprop(ms->fdt, "/timer", "compatible", 350 compat, sizeof(compat)); 351 } else { 352 qemu_fdt_setprop_string(ms->fdt, "/timer", "compatible", 353 "arm,armv7-timer"); 354 } 355 qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0); 356 qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts", 357 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_S_EL1_IRQ, irqflags, 358 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL1_IRQ, irqflags, 359 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_VIRT_IRQ, irqflags, 360 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL2_IRQ, irqflags); 361 } 362 363 static void fdt_add_cpu_nodes(const VirtMachineState *vms) 364 { 365 int cpu; 366 int addr_cells = 1; 367 const MachineState *ms = MACHINE(vms); 368 const VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 369 int smp_cpus = ms->smp.cpus; 370 371 /* 372 * See Linux Documentation/devicetree/bindings/arm/cpus.yaml 373 * On ARM v8 64-bit systems value should be set to 2, 374 * that corresponds to the MPIDR_EL1 register size. 375 * If MPIDR_EL1[63:32] value is equal to 0 on all CPUs 376 * in the system, #address-cells can be set to 1, since 377 * MPIDR_EL1[63:32] bits are not used for CPUs 378 * identification. 379 * 380 * Here we actually don't know whether our system is 32- or 64-bit one. 381 * The simplest way to go is to examine affinity IDs of all our CPUs. If 382 * at least one of them has Aff3 populated, we set #address-cells to 2. 383 */ 384 for (cpu = 0; cpu < smp_cpus; cpu++) { 385 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 386 387 if (armcpu->mp_affinity & ARM_AFF3_MASK) { 388 addr_cells = 2; 389 break; 390 } 391 } 392 393 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 394 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", addr_cells); 395 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 396 397 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 398 char *nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 399 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 400 CPUState *cs = CPU(armcpu); 401 402 qemu_fdt_add_subnode(ms->fdt, nodename); 403 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); 404 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 405 armcpu->dtb_compatible); 406 407 if (vms->psci_conduit != QEMU_PSCI_CONDUIT_DISABLED && smp_cpus > 1) { 408 qemu_fdt_setprop_string(ms->fdt, nodename, 409 "enable-method", "psci"); 410 } 411 412 if (addr_cells == 2) { 413 qemu_fdt_setprop_u64(ms->fdt, nodename, "reg", 414 armcpu->mp_affinity); 415 } else { 416 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", 417 armcpu->mp_affinity); 418 } 419 420 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { 421 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", 422 ms->possible_cpus->cpus[cs->cpu_index].props.node_id); 423 } 424 425 if (!vmc->no_cpu_topology) { 426 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", 427 qemu_fdt_alloc_phandle(ms->fdt)); 428 } 429 430 g_free(nodename); 431 } 432 433 if (!vmc->no_cpu_topology) { 434 /* 435 * Add vCPU topology description through fdt node cpu-map. 436 * 437 * See Linux Documentation/devicetree/bindings/cpu/cpu-topology.txt 438 * In a SMP system, the hierarchy of CPUs can be defined through 439 * four entities that are used to describe the layout of CPUs in 440 * the system: socket/cluster/core/thread. 441 * 442 * A socket node represents the boundary of system physical package 443 * and its child nodes must be one or more cluster nodes. A system 444 * can contain several layers of clustering within a single physical 445 * package and cluster nodes can be contained in parent cluster nodes. 446 * 447 * Note: currently we only support one layer of clustering within 448 * each physical package. 449 */ 450 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 451 452 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 453 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", cpu); 454 char *map_path; 455 456 if (ms->smp.threads > 1) { 457 map_path = g_strdup_printf( 458 "/cpus/cpu-map/socket%d/cluster%d/core%d/thread%d", 459 cpu / (ms->smp.clusters * ms->smp.cores * ms->smp.threads), 460 (cpu / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters, 461 (cpu / ms->smp.threads) % ms->smp.cores, 462 cpu % ms->smp.threads); 463 } else { 464 map_path = g_strdup_printf( 465 "/cpus/cpu-map/socket%d/cluster%d/core%d", 466 cpu / (ms->smp.clusters * ms->smp.cores), 467 (cpu / ms->smp.cores) % ms->smp.clusters, 468 cpu % ms->smp.cores); 469 } 470 qemu_fdt_add_path(ms->fdt, map_path); 471 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); 472 473 g_free(map_path); 474 g_free(cpu_path); 475 } 476 } 477 } 478 479 static void fdt_add_its_gic_node(VirtMachineState *vms) 480 { 481 char *nodename; 482 MachineState *ms = MACHINE(vms); 483 484 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 485 nodename = g_strdup_printf("/intc/its@%" PRIx64, 486 vms->memmap[VIRT_GIC_ITS].base); 487 qemu_fdt_add_subnode(ms->fdt, nodename); 488 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 489 "arm,gic-v3-its"); 490 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 491 qemu_fdt_setprop_cell(ms->fdt, nodename, "#msi-cells", 1); 492 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 493 2, vms->memmap[VIRT_GIC_ITS].base, 494 2, vms->memmap[VIRT_GIC_ITS].size); 495 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 496 g_free(nodename); 497 } 498 499 static void fdt_add_v2m_gic_node(VirtMachineState *vms) 500 { 501 MachineState *ms = MACHINE(vms); 502 char *nodename; 503 504 nodename = g_strdup_printf("/intc/v2m@%" PRIx64, 505 vms->memmap[VIRT_GIC_V2M].base); 506 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 507 qemu_fdt_add_subnode(ms->fdt, nodename); 508 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 509 "arm,gic-v2m-frame"); 510 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 511 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 512 2, vms->memmap[VIRT_GIC_V2M].base, 513 2, vms->memmap[VIRT_GIC_V2M].size); 514 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 515 g_free(nodename); 516 } 517 518 static void fdt_add_gic_node(VirtMachineState *vms) 519 { 520 MachineState *ms = MACHINE(vms); 521 char *nodename; 522 523 vms->gic_phandle = qemu_fdt_alloc_phandle(ms->fdt); 524 qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", vms->gic_phandle); 525 526 nodename = g_strdup_printf("/intc@%" PRIx64, 527 vms->memmap[VIRT_GIC_DIST].base); 528 qemu_fdt_add_subnode(ms->fdt, nodename); 529 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3); 530 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 531 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2); 532 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2); 533 qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0); 534 if (vms->gic_version != VIRT_GIC_VERSION_2) { 535 int nb_redist_regions = virt_gicv3_redist_region_count(vms); 536 537 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 538 "arm,gic-v3"); 539 540 qemu_fdt_setprop_cell(ms->fdt, nodename, 541 "#redistributor-regions", nb_redist_regions); 542 543 if (nb_redist_regions == 1) { 544 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 545 2, vms->memmap[VIRT_GIC_DIST].base, 546 2, vms->memmap[VIRT_GIC_DIST].size, 547 2, vms->memmap[VIRT_GIC_REDIST].base, 548 2, vms->memmap[VIRT_GIC_REDIST].size); 549 } else { 550 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 551 2, vms->memmap[VIRT_GIC_DIST].base, 552 2, vms->memmap[VIRT_GIC_DIST].size, 553 2, vms->memmap[VIRT_GIC_REDIST].base, 554 2, vms->memmap[VIRT_GIC_REDIST].size, 555 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].base, 556 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].size); 557 } 558 559 if (vms->virt) { 560 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 561 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 562 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 563 } 564 } else { 565 /* 'cortex-a15-gic' means 'GIC v2' */ 566 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 567 "arm,cortex-a15-gic"); 568 if (!vms->virt) { 569 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 570 2, vms->memmap[VIRT_GIC_DIST].base, 571 2, vms->memmap[VIRT_GIC_DIST].size, 572 2, vms->memmap[VIRT_GIC_CPU].base, 573 2, vms->memmap[VIRT_GIC_CPU].size); 574 } else { 575 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 576 2, vms->memmap[VIRT_GIC_DIST].base, 577 2, vms->memmap[VIRT_GIC_DIST].size, 578 2, vms->memmap[VIRT_GIC_CPU].base, 579 2, vms->memmap[VIRT_GIC_CPU].size, 580 2, vms->memmap[VIRT_GIC_HYP].base, 581 2, vms->memmap[VIRT_GIC_HYP].size, 582 2, vms->memmap[VIRT_GIC_VCPU].base, 583 2, vms->memmap[VIRT_GIC_VCPU].size); 584 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 585 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 586 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 587 } 588 } 589 590 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->gic_phandle); 591 g_free(nodename); 592 } 593 594 static void fdt_add_pmu_nodes(const VirtMachineState *vms) 595 { 596 ARMCPU *armcpu = ARM_CPU(first_cpu); 597 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 598 MachineState *ms = MACHINE(vms); 599 600 if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { 601 assert(!object_property_get_bool(OBJECT(armcpu), "pmu", NULL)); 602 return; 603 } 604 605 if (vms->gic_version == VIRT_GIC_VERSION_2) { 606 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 607 GIC_FDT_IRQ_PPI_CPU_WIDTH, 608 (1 << MACHINE(vms)->smp.cpus) - 1); 609 } 610 611 qemu_fdt_add_subnode(ms->fdt, "/pmu"); 612 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 613 const char compat[] = "arm,armv8-pmuv3"; 614 qemu_fdt_setprop(ms->fdt, "/pmu", "compatible", 615 compat, sizeof(compat)); 616 qemu_fdt_setprop_cells(ms->fdt, "/pmu", "interrupts", 617 GIC_FDT_IRQ_TYPE_PPI, VIRTUAL_PMU_IRQ, irqflags); 618 } 619 } 620 621 static inline DeviceState *create_acpi_ged(VirtMachineState *vms) 622 { 623 DeviceState *dev; 624 MachineState *ms = MACHINE(vms); 625 int irq = vms->irqmap[VIRT_ACPI_GED]; 626 uint32_t event = ACPI_GED_PWR_DOWN_EVT; 627 628 if (ms->ram_slots) { 629 event |= ACPI_GED_MEM_HOTPLUG_EVT; 630 } 631 632 if (ms->nvdimms_state->is_enabled) { 633 event |= ACPI_GED_NVDIMM_HOTPLUG_EVT; 634 } 635 636 dev = qdev_new(TYPE_ACPI_GED); 637 qdev_prop_set_uint32(dev, "ged-event", event); 638 639 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].base); 640 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].base); 641 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, irq)); 642 643 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 644 645 return dev; 646 } 647 648 static void create_its(VirtMachineState *vms) 649 { 650 const char *itsclass = its_class_name(); 651 DeviceState *dev; 652 653 if (!strcmp(itsclass, "arm-gicv3-its")) { 654 if (!vms->tcg_its) { 655 itsclass = NULL; 656 } 657 } 658 659 if (!itsclass) { 660 /* Do nothing if not supported */ 661 return; 662 } 663 664 dev = qdev_new(itsclass); 665 666 object_property_set_link(OBJECT(dev), "parent-gicv3", OBJECT(vms->gic), 667 &error_abort); 668 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 669 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_ITS].base); 670 671 fdt_add_its_gic_node(vms); 672 vms->msi_controller = VIRT_MSI_CTRL_ITS; 673 } 674 675 static void create_v2m(VirtMachineState *vms) 676 { 677 int i; 678 int irq = vms->irqmap[VIRT_GIC_V2M]; 679 DeviceState *dev; 680 681 dev = qdev_new("arm-gicv2m"); 682 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_V2M].base); 683 qdev_prop_set_uint32(dev, "base-spi", irq); 684 qdev_prop_set_uint32(dev, "num-spi", NUM_GICV2M_SPIS); 685 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 686 687 for (i = 0; i < NUM_GICV2M_SPIS; i++) { 688 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 689 qdev_get_gpio_in(vms->gic, irq + i)); 690 } 691 692 fdt_add_v2m_gic_node(vms); 693 vms->msi_controller = VIRT_MSI_CTRL_GICV2M; 694 } 695 696 static void create_gic(VirtMachineState *vms, MemoryRegion *mem) 697 { 698 MachineState *ms = MACHINE(vms); 699 /* We create a standalone GIC */ 700 SysBusDevice *gicbusdev; 701 const char *gictype; 702 int i; 703 unsigned int smp_cpus = ms->smp.cpus; 704 uint32_t nb_redist_regions = 0; 705 int revision; 706 707 if (vms->gic_version == VIRT_GIC_VERSION_2) { 708 gictype = gic_class_name(); 709 } else { 710 gictype = gicv3_class_name(); 711 } 712 713 switch (vms->gic_version) { 714 case VIRT_GIC_VERSION_2: 715 revision = 2; 716 break; 717 case VIRT_GIC_VERSION_3: 718 revision = 3; 719 break; 720 case VIRT_GIC_VERSION_4: 721 revision = 4; 722 break; 723 default: 724 g_assert_not_reached(); 725 } 726 vms->gic = qdev_new(gictype); 727 qdev_prop_set_uint32(vms->gic, "revision", revision); 728 qdev_prop_set_uint32(vms->gic, "num-cpu", smp_cpus); 729 /* Note that the num-irq property counts both internal and external 730 * interrupts; there are always 32 of the former (mandated by GIC spec). 731 */ 732 qdev_prop_set_uint32(vms->gic, "num-irq", NUM_IRQS + 32); 733 if (!kvm_irqchip_in_kernel()) { 734 qdev_prop_set_bit(vms->gic, "has-security-extensions", vms->secure); 735 } 736 737 if (vms->gic_version != VIRT_GIC_VERSION_2) { 738 uint32_t redist0_capacity = virt_redist_capacity(vms, VIRT_GIC_REDIST); 739 uint32_t redist0_count = MIN(smp_cpus, redist0_capacity); 740 741 nb_redist_regions = virt_gicv3_redist_region_count(vms); 742 743 qdev_prop_set_uint32(vms->gic, "len-redist-region-count", 744 nb_redist_regions); 745 qdev_prop_set_uint32(vms->gic, "redist-region-count[0]", redist0_count); 746 747 if (!kvm_irqchip_in_kernel()) { 748 if (vms->tcg_its) { 749 object_property_set_link(OBJECT(vms->gic), "sysmem", 750 OBJECT(mem), &error_fatal); 751 qdev_prop_set_bit(vms->gic, "has-lpi", true); 752 } 753 } 754 755 if (nb_redist_regions == 2) { 756 uint32_t redist1_capacity = 757 virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 758 759 qdev_prop_set_uint32(vms->gic, "redist-region-count[1]", 760 MIN(smp_cpus - redist0_count, redist1_capacity)); 761 } 762 } else { 763 if (!kvm_irqchip_in_kernel()) { 764 qdev_prop_set_bit(vms->gic, "has-virtualization-extensions", 765 vms->virt); 766 } 767 } 768 gicbusdev = SYS_BUS_DEVICE(vms->gic); 769 sysbus_realize_and_unref(gicbusdev, &error_fatal); 770 sysbus_mmio_map(gicbusdev, 0, vms->memmap[VIRT_GIC_DIST].base); 771 if (vms->gic_version != VIRT_GIC_VERSION_2) { 772 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_REDIST].base); 773 if (nb_redist_regions == 2) { 774 sysbus_mmio_map(gicbusdev, 2, 775 vms->memmap[VIRT_HIGH_GIC_REDIST2].base); 776 } 777 } else { 778 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_CPU].base); 779 if (vms->virt) { 780 sysbus_mmio_map(gicbusdev, 2, vms->memmap[VIRT_GIC_HYP].base); 781 sysbus_mmio_map(gicbusdev, 3, vms->memmap[VIRT_GIC_VCPU].base); 782 } 783 } 784 785 /* Wire the outputs from each CPU's generic timer and the GICv3 786 * maintenance interrupt signal to the appropriate GIC PPI inputs, 787 * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs. 788 */ 789 for (i = 0; i < smp_cpus; i++) { 790 DeviceState *cpudev = DEVICE(qemu_get_cpu(i)); 791 int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS; 792 int irq; 793 /* Mapping from the output timer irq lines from the CPU to the 794 * GIC PPI inputs we use for the virt board. 795 */ 796 const int timer_irq[] = { 797 [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ, 798 [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ, 799 [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ, 800 [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ, 801 }; 802 803 for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { 804 qdev_connect_gpio_out(cpudev, irq, 805 qdev_get_gpio_in(vms->gic, 806 ppibase + timer_irq[irq])); 807 } 808 809 if (vms->gic_version != VIRT_GIC_VERSION_2) { 810 qemu_irq irq = qdev_get_gpio_in(vms->gic, 811 ppibase + ARCH_GIC_MAINT_IRQ); 812 qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt", 813 0, irq); 814 } else if (vms->virt) { 815 qemu_irq irq = qdev_get_gpio_in(vms->gic, 816 ppibase + ARCH_GIC_MAINT_IRQ); 817 sysbus_connect_irq(gicbusdev, i + 4 * smp_cpus, irq); 818 } 819 820 qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0, 821 qdev_get_gpio_in(vms->gic, ppibase 822 + VIRTUAL_PMU_IRQ)); 823 824 sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ)); 825 sysbus_connect_irq(gicbusdev, i + smp_cpus, 826 qdev_get_gpio_in(cpudev, ARM_CPU_FIQ)); 827 sysbus_connect_irq(gicbusdev, i + 2 * smp_cpus, 828 qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ)); 829 sysbus_connect_irq(gicbusdev, i + 3 * smp_cpus, 830 qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ)); 831 } 832 833 fdt_add_gic_node(vms); 834 835 if (vms->gic_version != VIRT_GIC_VERSION_2 && vms->its) { 836 create_its(vms); 837 } else if (vms->gic_version == VIRT_GIC_VERSION_2) { 838 create_v2m(vms); 839 } 840 } 841 842 static void create_uart(const VirtMachineState *vms, int uart, 843 MemoryRegion *mem, Chardev *chr) 844 { 845 char *nodename; 846 hwaddr base = vms->memmap[uart].base; 847 hwaddr size = vms->memmap[uart].size; 848 int irq = vms->irqmap[uart]; 849 const char compat[] = "arm,pl011\0arm,primecell"; 850 const char clocknames[] = "uartclk\0apb_pclk"; 851 DeviceState *dev = qdev_new(TYPE_PL011); 852 SysBusDevice *s = SYS_BUS_DEVICE(dev); 853 MachineState *ms = MACHINE(vms); 854 855 qdev_prop_set_chr(dev, "chardev", chr); 856 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 857 memory_region_add_subregion(mem, base, 858 sysbus_mmio_get_region(s, 0)); 859 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 860 861 nodename = g_strdup_printf("/pl011@%" PRIx64, base); 862 qemu_fdt_add_subnode(ms->fdt, nodename); 863 /* Note that we can't use setprop_string because of the embedded NUL */ 864 qemu_fdt_setprop(ms->fdt, nodename, "compatible", 865 compat, sizeof(compat)); 866 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 867 2, base, 2, size); 868 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 869 GIC_FDT_IRQ_TYPE_SPI, irq, 870 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 871 qemu_fdt_setprop_cells(ms->fdt, nodename, "clocks", 872 vms->clock_phandle, vms->clock_phandle); 873 qemu_fdt_setprop(ms->fdt, nodename, "clock-names", 874 clocknames, sizeof(clocknames)); 875 876 if (uart == VIRT_UART) { 877 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); 878 } else { 879 /* Mark as not usable by the normal world */ 880 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 881 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 882 883 qemu_fdt_setprop_string(ms->fdt, "/secure-chosen", "stdout-path", 884 nodename); 885 } 886 887 g_free(nodename); 888 } 889 890 static void create_rtc(const VirtMachineState *vms) 891 { 892 char *nodename; 893 hwaddr base = vms->memmap[VIRT_RTC].base; 894 hwaddr size = vms->memmap[VIRT_RTC].size; 895 int irq = vms->irqmap[VIRT_RTC]; 896 const char compat[] = "arm,pl031\0arm,primecell"; 897 MachineState *ms = MACHINE(vms); 898 899 sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq)); 900 901 nodename = g_strdup_printf("/pl031@%" PRIx64, base); 902 qemu_fdt_add_subnode(ms->fdt, nodename); 903 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 904 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 905 2, base, 2, size); 906 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 907 GIC_FDT_IRQ_TYPE_SPI, irq, 908 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 909 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 910 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 911 g_free(nodename); 912 } 913 914 static DeviceState *gpio_key_dev; 915 static void virt_powerdown_req(Notifier *n, void *opaque) 916 { 917 VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier); 918 919 if (s->acpi_dev) { 920 acpi_send_event(s->acpi_dev, ACPI_POWER_DOWN_STATUS); 921 } else { 922 /* use gpio Pin 3 for power button event */ 923 qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1); 924 } 925 } 926 927 static void create_gpio_keys(char *fdt, DeviceState *pl061_dev, 928 uint32_t phandle) 929 { 930 gpio_key_dev = sysbus_create_simple("gpio-key", -1, 931 qdev_get_gpio_in(pl061_dev, 3)); 932 933 qemu_fdt_add_subnode(fdt, "/gpio-keys"); 934 qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys"); 935 936 qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff"); 937 qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff", 938 "label", "GPIO Key Poweroff"); 939 qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code", 940 KEY_POWER); 941 qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff", 942 "gpios", phandle, 3, 0); 943 } 944 945 #define SECURE_GPIO_POWEROFF 0 946 #define SECURE_GPIO_RESET 1 947 948 static void create_secure_gpio_pwr(char *fdt, DeviceState *pl061_dev, 949 uint32_t phandle) 950 { 951 DeviceState *gpio_pwr_dev; 952 953 /* gpio-pwr */ 954 gpio_pwr_dev = sysbus_create_simple("gpio-pwr", -1, NULL); 955 956 /* connect secure pl061 to gpio-pwr */ 957 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_RESET, 958 qdev_get_gpio_in_named(gpio_pwr_dev, "reset", 0)); 959 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_POWEROFF, 960 qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0)); 961 962 qemu_fdt_add_subnode(fdt, "/gpio-poweroff"); 963 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "compatible", 964 "gpio-poweroff"); 965 qemu_fdt_setprop_cells(fdt, "/gpio-poweroff", 966 "gpios", phandle, SECURE_GPIO_POWEROFF, 0); 967 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "status", "disabled"); 968 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "secure-status", 969 "okay"); 970 971 qemu_fdt_add_subnode(fdt, "/gpio-restart"); 972 qemu_fdt_setprop_string(fdt, "/gpio-restart", "compatible", 973 "gpio-restart"); 974 qemu_fdt_setprop_cells(fdt, "/gpio-restart", 975 "gpios", phandle, SECURE_GPIO_RESET, 0); 976 qemu_fdt_setprop_string(fdt, "/gpio-restart", "status", "disabled"); 977 qemu_fdt_setprop_string(fdt, "/gpio-restart", "secure-status", 978 "okay"); 979 } 980 981 static void create_gpio_devices(const VirtMachineState *vms, int gpio, 982 MemoryRegion *mem) 983 { 984 char *nodename; 985 DeviceState *pl061_dev; 986 hwaddr base = vms->memmap[gpio].base; 987 hwaddr size = vms->memmap[gpio].size; 988 int irq = vms->irqmap[gpio]; 989 const char compat[] = "arm,pl061\0arm,primecell"; 990 SysBusDevice *s; 991 MachineState *ms = MACHINE(vms); 992 993 pl061_dev = qdev_new("pl061"); 994 /* Pull lines down to 0 if not driven by the PL061 */ 995 qdev_prop_set_uint32(pl061_dev, "pullups", 0); 996 qdev_prop_set_uint32(pl061_dev, "pulldowns", 0xff); 997 s = SYS_BUS_DEVICE(pl061_dev); 998 sysbus_realize_and_unref(s, &error_fatal); 999 memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); 1000 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 1001 1002 uint32_t phandle = qemu_fdt_alloc_phandle(ms->fdt); 1003 nodename = g_strdup_printf("/pl061@%" PRIx64, base); 1004 qemu_fdt_add_subnode(ms->fdt, nodename); 1005 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1006 2, base, 2, size); 1007 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 1008 qemu_fdt_setprop_cell(ms->fdt, nodename, "#gpio-cells", 2); 1009 qemu_fdt_setprop(ms->fdt, nodename, "gpio-controller", NULL, 0); 1010 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1011 GIC_FDT_IRQ_TYPE_SPI, irq, 1012 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 1013 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 1014 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 1015 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle); 1016 1017 if (gpio != VIRT_GPIO) { 1018 /* Mark as not usable by the normal world */ 1019 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1020 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1021 } 1022 g_free(nodename); 1023 1024 /* Child gpio devices */ 1025 if (gpio == VIRT_GPIO) { 1026 create_gpio_keys(ms->fdt, pl061_dev, phandle); 1027 } else { 1028 create_secure_gpio_pwr(ms->fdt, pl061_dev, phandle); 1029 } 1030 } 1031 1032 static void create_virtio_devices(const VirtMachineState *vms) 1033 { 1034 int i; 1035 hwaddr size = vms->memmap[VIRT_MMIO].size; 1036 MachineState *ms = MACHINE(vms); 1037 1038 /* We create the transports in forwards order. Since qbus_realize() 1039 * prepends (not appends) new child buses, the incrementing loop below will 1040 * create a list of virtio-mmio buses with decreasing base addresses. 1041 * 1042 * When a -device option is processed from the command line, 1043 * qbus_find_recursive() picks the next free virtio-mmio bus in forwards 1044 * order. The upshot is that -device options in increasing command line 1045 * order are mapped to virtio-mmio buses with decreasing base addresses. 1046 * 1047 * When this code was originally written, that arrangement ensured that the 1048 * guest Linux kernel would give the lowest "name" (/dev/vda, eth0, etc) to 1049 * the first -device on the command line. (The end-to-end order is a 1050 * function of this loop, qbus_realize(), qbus_find_recursive(), and the 1051 * guest kernel's name-to-address assignment strategy.) 1052 * 1053 * Meanwhile, the kernel's traversal seems to have been reversed; see eg. 1054 * the message, if not necessarily the code, of commit 70161ff336. 1055 * Therefore the loop now establishes the inverse of the original intent. 1056 * 1057 * Unfortunately, we can't counteract the kernel change by reversing the 1058 * loop; it would break existing command lines. 1059 * 1060 * In any case, the kernel makes no guarantee about the stability of 1061 * enumeration order of virtio devices (as demonstrated by it changing 1062 * between kernel versions). For reliable and stable identification 1063 * of disks users must use UUIDs or similar mechanisms. 1064 */ 1065 for (i = 0; i < NUM_VIRTIO_TRANSPORTS; i++) { 1066 int irq = vms->irqmap[VIRT_MMIO] + i; 1067 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1068 1069 sysbus_create_simple("virtio-mmio", base, 1070 qdev_get_gpio_in(vms->gic, irq)); 1071 } 1072 1073 /* We add dtb nodes in reverse order so that they appear in the finished 1074 * device tree lowest address first. 1075 * 1076 * Note that this mapping is independent of the loop above. The previous 1077 * loop influences virtio device to virtio transport assignment, whereas 1078 * this loop controls how virtio transports are laid out in the dtb. 1079 */ 1080 for (i = NUM_VIRTIO_TRANSPORTS - 1; i >= 0; i--) { 1081 char *nodename; 1082 int irq = vms->irqmap[VIRT_MMIO] + i; 1083 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1084 1085 nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, base); 1086 qemu_fdt_add_subnode(ms->fdt, nodename); 1087 qemu_fdt_setprop_string(ms->fdt, nodename, 1088 "compatible", "virtio,mmio"); 1089 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1090 2, base, 2, size); 1091 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1092 GIC_FDT_IRQ_TYPE_SPI, irq, 1093 GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1094 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1095 g_free(nodename); 1096 } 1097 } 1098 1099 #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) 1100 1101 static PFlashCFI01 *virt_flash_create1(VirtMachineState *vms, 1102 const char *name, 1103 const char *alias_prop_name) 1104 { 1105 /* 1106 * Create a single flash device. We use the same parameters as 1107 * the flash devices on the Versatile Express board. 1108 */ 1109 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 1110 1111 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 1112 qdev_prop_set_uint8(dev, "width", 4); 1113 qdev_prop_set_uint8(dev, "device-width", 2); 1114 qdev_prop_set_bit(dev, "big-endian", false); 1115 qdev_prop_set_uint16(dev, "id0", 0x89); 1116 qdev_prop_set_uint16(dev, "id1", 0x18); 1117 qdev_prop_set_uint16(dev, "id2", 0x00); 1118 qdev_prop_set_uint16(dev, "id3", 0x00); 1119 qdev_prop_set_string(dev, "name", name); 1120 object_property_add_child(OBJECT(vms), name, OBJECT(dev)); 1121 object_property_add_alias(OBJECT(vms), alias_prop_name, 1122 OBJECT(dev), "drive"); 1123 return PFLASH_CFI01(dev); 1124 } 1125 1126 static void virt_flash_create(VirtMachineState *vms) 1127 { 1128 vms->flash[0] = virt_flash_create1(vms, "virt.flash0", "pflash0"); 1129 vms->flash[1] = virt_flash_create1(vms, "virt.flash1", "pflash1"); 1130 } 1131 1132 static void virt_flash_map1(PFlashCFI01 *flash, 1133 hwaddr base, hwaddr size, 1134 MemoryRegion *sysmem) 1135 { 1136 DeviceState *dev = DEVICE(flash); 1137 1138 assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE)); 1139 assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 1140 qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE); 1141 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1142 1143 memory_region_add_subregion(sysmem, base, 1144 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1145 0)); 1146 } 1147 1148 static void virt_flash_map(VirtMachineState *vms, 1149 MemoryRegion *sysmem, 1150 MemoryRegion *secure_sysmem) 1151 { 1152 /* 1153 * Map two flash devices to fill the VIRT_FLASH space in the memmap. 1154 * sysmem is the system memory space. secure_sysmem is the secure view 1155 * of the system, and the first flash device should be made visible only 1156 * there. The second flash device is visible to both secure and nonsecure. 1157 * If sysmem == secure_sysmem this means there is no separate Secure 1158 * address space and both flash devices are generally visible. 1159 */ 1160 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1161 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1162 1163 virt_flash_map1(vms->flash[0], flashbase, flashsize, 1164 secure_sysmem); 1165 virt_flash_map1(vms->flash[1], flashbase + flashsize, flashsize, 1166 sysmem); 1167 } 1168 1169 static void virt_flash_fdt(VirtMachineState *vms, 1170 MemoryRegion *sysmem, 1171 MemoryRegion *secure_sysmem) 1172 { 1173 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1174 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1175 MachineState *ms = MACHINE(vms); 1176 char *nodename; 1177 1178 if (sysmem == secure_sysmem) { 1179 /* Report both flash devices as a single node in the DT */ 1180 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase); 1181 qemu_fdt_add_subnode(ms->fdt, nodename); 1182 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1183 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1184 2, flashbase, 2, flashsize, 1185 2, flashbase + flashsize, 2, flashsize); 1186 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1187 g_free(nodename); 1188 } else { 1189 /* 1190 * Report the devices as separate nodes so we can mark one as 1191 * only visible to the secure world. 1192 */ 1193 nodename = g_strdup_printf("/secflash@%" PRIx64, flashbase); 1194 qemu_fdt_add_subnode(ms->fdt, nodename); 1195 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1196 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1197 2, flashbase, 2, flashsize); 1198 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1199 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1200 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1201 g_free(nodename); 1202 1203 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase + flashsize); 1204 qemu_fdt_add_subnode(ms->fdt, nodename); 1205 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1206 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1207 2, flashbase + flashsize, 2, flashsize); 1208 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1209 g_free(nodename); 1210 } 1211 } 1212 1213 static bool virt_firmware_init(VirtMachineState *vms, 1214 MemoryRegion *sysmem, 1215 MemoryRegion *secure_sysmem) 1216 { 1217 int i; 1218 const char *bios_name; 1219 BlockBackend *pflash_blk0; 1220 1221 /* Map legacy -drive if=pflash to machine properties */ 1222 for (i = 0; i < ARRAY_SIZE(vms->flash); i++) { 1223 pflash_cfi01_legacy_drive(vms->flash[i], 1224 drive_get(IF_PFLASH, 0, i)); 1225 } 1226 1227 virt_flash_map(vms, sysmem, secure_sysmem); 1228 1229 pflash_blk0 = pflash_cfi01_get_blk(vms->flash[0]); 1230 1231 bios_name = MACHINE(vms)->firmware; 1232 if (bios_name) { 1233 char *fname; 1234 MemoryRegion *mr; 1235 int image_size; 1236 1237 if (pflash_blk0) { 1238 error_report("The contents of the first flash device may be " 1239 "specified with -bios or with -drive if=pflash... " 1240 "but you cannot use both options at once"); 1241 exit(1); 1242 } 1243 1244 /* Fall back to -bios */ 1245 1246 fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 1247 if (!fname) { 1248 error_report("Could not find ROM image '%s'", bios_name); 1249 exit(1); 1250 } 1251 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(vms->flash[0]), 0); 1252 image_size = load_image_mr(fname, mr); 1253 g_free(fname); 1254 if (image_size < 0) { 1255 error_report("Could not load ROM image '%s'", bios_name); 1256 exit(1); 1257 } 1258 } 1259 1260 return pflash_blk0 || bios_name; 1261 } 1262 1263 static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) 1264 { 1265 MachineState *ms = MACHINE(vms); 1266 hwaddr base = vms->memmap[VIRT_FW_CFG].base; 1267 hwaddr size = vms->memmap[VIRT_FW_CFG].size; 1268 FWCfgState *fw_cfg; 1269 char *nodename; 1270 1271 fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, as); 1272 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); 1273 1274 nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); 1275 qemu_fdt_add_subnode(ms->fdt, nodename); 1276 qemu_fdt_setprop_string(ms->fdt, nodename, 1277 "compatible", "qemu,fw-cfg-mmio"); 1278 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1279 2, base, 2, size); 1280 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1281 g_free(nodename); 1282 return fw_cfg; 1283 } 1284 1285 static void create_pcie_irq_map(const MachineState *ms, 1286 uint32_t gic_phandle, 1287 int first_irq, const char *nodename) 1288 { 1289 int devfn, pin; 1290 uint32_t full_irq_map[4 * 4 * 10] = { 0 }; 1291 uint32_t *irq_map = full_irq_map; 1292 1293 for (devfn = 0; devfn <= 0x18; devfn += 0x8) { 1294 for (pin = 0; pin < 4; pin++) { 1295 int irq_type = GIC_FDT_IRQ_TYPE_SPI; 1296 int irq_nr = first_irq + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS); 1297 int irq_level = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 1298 int i; 1299 1300 uint32_t map[] = { 1301 devfn << 8, 0, 0, /* devfn */ 1302 pin + 1, /* PCI pin */ 1303 gic_phandle, 0, 0, irq_type, irq_nr, irq_level }; /* GIC irq */ 1304 1305 /* Convert map to big endian */ 1306 for (i = 0; i < 10; i++) { 1307 irq_map[i] = cpu_to_be32(map[i]); 1308 } 1309 irq_map += 10; 1310 } 1311 } 1312 1313 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", 1314 full_irq_map, sizeof(full_irq_map)); 1315 1316 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", 1317 cpu_to_be16(PCI_DEVFN(3, 0)), /* Slot 3 */ 1318 0, 0, 1319 0x7 /* PCI irq */); 1320 } 1321 1322 static void create_smmu(const VirtMachineState *vms, 1323 PCIBus *bus) 1324 { 1325 char *node; 1326 const char compat[] = "arm,smmu-v3"; 1327 int irq = vms->irqmap[VIRT_SMMU]; 1328 int i; 1329 hwaddr base = vms->memmap[VIRT_SMMU].base; 1330 hwaddr size = vms->memmap[VIRT_SMMU].size; 1331 const char irq_names[] = "eventq\0priq\0cmdq-sync\0gerror"; 1332 DeviceState *dev; 1333 MachineState *ms = MACHINE(vms); 1334 1335 if (vms->iommu != VIRT_IOMMU_SMMUV3 || !vms->iommu_phandle) { 1336 return; 1337 } 1338 1339 dev = qdev_new("arm-smmuv3"); 1340 1341 object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus), 1342 &error_abort); 1343 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1344 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base); 1345 for (i = 0; i < NUM_SMMU_IRQS; i++) { 1346 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1347 qdev_get_gpio_in(vms->gic, irq + i)); 1348 } 1349 1350 node = g_strdup_printf("/smmuv3@%" PRIx64, base); 1351 qemu_fdt_add_subnode(ms->fdt, node); 1352 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1353 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 2, base, 2, size); 1354 1355 qemu_fdt_setprop_cells(ms->fdt, node, "interrupts", 1356 GIC_FDT_IRQ_TYPE_SPI, irq , GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1357 GIC_FDT_IRQ_TYPE_SPI, irq + 1, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1358 GIC_FDT_IRQ_TYPE_SPI, irq + 2, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1359 GIC_FDT_IRQ_TYPE_SPI, irq + 3, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1360 1361 qemu_fdt_setprop(ms->fdt, node, "interrupt-names", irq_names, 1362 sizeof(irq_names)); 1363 1364 qemu_fdt_setprop(ms->fdt, node, "dma-coherent", NULL, 0); 1365 1366 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1367 1368 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1369 g_free(node); 1370 } 1371 1372 static void create_virtio_iommu_dt_bindings(VirtMachineState *vms) 1373 { 1374 const char compat[] = "virtio,pci-iommu\0pci1af4,1057"; 1375 uint16_t bdf = vms->virtio_iommu_bdf; 1376 MachineState *ms = MACHINE(vms); 1377 char *node; 1378 1379 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1380 1381 node = g_strdup_printf("%s/virtio_iommu@%x,%x", vms->pciehb_nodename, 1382 PCI_SLOT(bdf), PCI_FUNC(bdf)); 1383 qemu_fdt_add_subnode(ms->fdt, node); 1384 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1385 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 1386 1, bdf << 8, 1, 0, 1, 0, 1387 1, 0, 1, 0); 1388 1389 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1390 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1391 g_free(node); 1392 1393 qemu_fdt_setprop_cells(ms->fdt, vms->pciehb_nodename, "iommu-map", 1394 0x0, vms->iommu_phandle, 0x0, bdf, 1395 bdf + 1, vms->iommu_phandle, bdf + 1, 0xffff - bdf); 1396 } 1397 1398 static void create_pcie(VirtMachineState *vms) 1399 { 1400 hwaddr base_mmio = vms->memmap[VIRT_PCIE_MMIO].base; 1401 hwaddr size_mmio = vms->memmap[VIRT_PCIE_MMIO].size; 1402 hwaddr base_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].base; 1403 hwaddr size_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].size; 1404 hwaddr base_pio = vms->memmap[VIRT_PCIE_PIO].base; 1405 hwaddr size_pio = vms->memmap[VIRT_PCIE_PIO].size; 1406 hwaddr base_ecam, size_ecam; 1407 hwaddr base = base_mmio; 1408 int nr_pcie_buses; 1409 int irq = vms->irqmap[VIRT_PCIE]; 1410 MemoryRegion *mmio_alias; 1411 MemoryRegion *mmio_reg; 1412 MemoryRegion *ecam_alias; 1413 MemoryRegion *ecam_reg; 1414 DeviceState *dev; 1415 char *nodename; 1416 int i, ecam_id; 1417 PCIHostState *pci; 1418 MachineState *ms = MACHINE(vms); 1419 1420 dev = qdev_new(TYPE_GPEX_HOST); 1421 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1422 1423 ecam_id = VIRT_ECAM_ID(vms->highmem_ecam); 1424 base_ecam = vms->memmap[ecam_id].base; 1425 size_ecam = vms->memmap[ecam_id].size; 1426 nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; 1427 /* Map only the first size_ecam bytes of ECAM space */ 1428 ecam_alias = g_new0(MemoryRegion, 1); 1429 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 1430 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 1431 ecam_reg, 0, size_ecam); 1432 memory_region_add_subregion(get_system_memory(), base_ecam, ecam_alias); 1433 1434 /* Map the MMIO window into system address space so as to expose 1435 * the section of PCI MMIO space which starts at the same base address 1436 * (ie 1:1 mapping for that part of PCI MMIO space visible through 1437 * the window). 1438 */ 1439 mmio_alias = g_new0(MemoryRegion, 1); 1440 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 1441 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 1442 mmio_reg, base_mmio, size_mmio); 1443 memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias); 1444 1445 if (vms->highmem_mmio) { 1446 /* Map high MMIO space */ 1447 MemoryRegion *high_mmio_alias = g_new0(MemoryRegion, 1); 1448 1449 memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", 1450 mmio_reg, base_mmio_high, size_mmio_high); 1451 memory_region_add_subregion(get_system_memory(), base_mmio_high, 1452 high_mmio_alias); 1453 } 1454 1455 /* Map IO port space */ 1456 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); 1457 1458 for (i = 0; i < GPEX_NUM_IRQS; i++) { 1459 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1460 qdev_get_gpio_in(vms->gic, irq + i)); 1461 gpex_set_irq_num(GPEX_HOST(dev), i, irq + i); 1462 } 1463 1464 pci = PCI_HOST_BRIDGE(dev); 1465 pci->bypass_iommu = vms->default_bus_bypass_iommu; 1466 vms->bus = pci->bus; 1467 if (vms->bus) { 1468 for (i = 0; i < nb_nics; i++) { 1469 NICInfo *nd = &nd_table[i]; 1470 1471 if (!nd->model) { 1472 nd->model = g_strdup("virtio"); 1473 } 1474 1475 pci_nic_init_nofail(nd, pci->bus, nd->model, NULL); 1476 } 1477 } 1478 1479 nodename = vms->pciehb_nodename = g_strdup_printf("/pcie@%" PRIx64, base); 1480 qemu_fdt_add_subnode(ms->fdt, nodename); 1481 qemu_fdt_setprop_string(ms->fdt, nodename, 1482 "compatible", "pci-host-ecam-generic"); 1483 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); 1484 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); 1485 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); 1486 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); 1487 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, 1488 nr_pcie_buses - 1); 1489 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1490 1491 if (vms->msi_phandle) { 1492 qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map", 1493 0, vms->msi_phandle, 0, 0x10000); 1494 } 1495 1496 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1497 2, base_ecam, 2, size_ecam); 1498 1499 if (vms->highmem_mmio) { 1500 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1501 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1502 2, base_pio, 2, size_pio, 1503 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1504 2, base_mmio, 2, size_mmio, 1505 1, FDT_PCI_RANGE_MMIO_64BIT, 1506 2, base_mmio_high, 1507 2, base_mmio_high, 2, size_mmio_high); 1508 } else { 1509 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1510 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1511 2, base_pio, 2, size_pio, 1512 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1513 2, base_mmio, 2, size_mmio); 1514 } 1515 1516 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); 1517 create_pcie_irq_map(ms, vms->gic_phandle, irq, nodename); 1518 1519 if (vms->iommu) { 1520 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1521 1522 switch (vms->iommu) { 1523 case VIRT_IOMMU_SMMUV3: 1524 create_smmu(vms, vms->bus); 1525 qemu_fdt_setprop_cells(ms->fdt, nodename, "iommu-map", 1526 0x0, vms->iommu_phandle, 0x0, 0x10000); 1527 break; 1528 default: 1529 g_assert_not_reached(); 1530 } 1531 } 1532 } 1533 1534 static void create_platform_bus(VirtMachineState *vms) 1535 { 1536 DeviceState *dev; 1537 SysBusDevice *s; 1538 int i; 1539 MemoryRegion *sysmem = get_system_memory(); 1540 1541 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 1542 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 1543 qdev_prop_set_uint32(dev, "num_irqs", PLATFORM_BUS_NUM_IRQS); 1544 qdev_prop_set_uint32(dev, "mmio_size", vms->memmap[VIRT_PLATFORM_BUS].size); 1545 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1546 vms->platform_bus_dev = dev; 1547 1548 s = SYS_BUS_DEVICE(dev); 1549 for (i = 0; i < PLATFORM_BUS_NUM_IRQS; i++) { 1550 int irq = vms->irqmap[VIRT_PLATFORM_BUS] + i; 1551 sysbus_connect_irq(s, i, qdev_get_gpio_in(vms->gic, irq)); 1552 } 1553 1554 memory_region_add_subregion(sysmem, 1555 vms->memmap[VIRT_PLATFORM_BUS].base, 1556 sysbus_mmio_get_region(s, 0)); 1557 } 1558 1559 static void create_tag_ram(MemoryRegion *tag_sysmem, 1560 hwaddr base, hwaddr size, 1561 const char *name) 1562 { 1563 MemoryRegion *tagram = g_new(MemoryRegion, 1); 1564 1565 memory_region_init_ram(tagram, NULL, name, size / 32, &error_fatal); 1566 memory_region_add_subregion(tag_sysmem, base / 32, tagram); 1567 } 1568 1569 static void create_secure_ram(VirtMachineState *vms, 1570 MemoryRegion *secure_sysmem, 1571 MemoryRegion *secure_tag_sysmem) 1572 { 1573 MemoryRegion *secram = g_new(MemoryRegion, 1); 1574 char *nodename; 1575 hwaddr base = vms->memmap[VIRT_SECURE_MEM].base; 1576 hwaddr size = vms->memmap[VIRT_SECURE_MEM].size; 1577 MachineState *ms = MACHINE(vms); 1578 1579 memory_region_init_ram(secram, NULL, "virt.secure-ram", size, 1580 &error_fatal); 1581 memory_region_add_subregion(secure_sysmem, base, secram); 1582 1583 nodename = g_strdup_printf("/secram@%" PRIx64, base); 1584 qemu_fdt_add_subnode(ms->fdt, nodename); 1585 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); 1586 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 1587 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1588 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1589 1590 if (secure_tag_sysmem) { 1591 create_tag_ram(secure_tag_sysmem, base, size, "mach-virt.secure-tag"); 1592 } 1593 1594 g_free(nodename); 1595 } 1596 1597 static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size) 1598 { 1599 const VirtMachineState *board = container_of(binfo, VirtMachineState, 1600 bootinfo); 1601 MachineState *ms = MACHINE(board); 1602 1603 1604 *fdt_size = board->fdt_size; 1605 return ms->fdt; 1606 } 1607 1608 static void virt_build_smbios(VirtMachineState *vms) 1609 { 1610 MachineClass *mc = MACHINE_GET_CLASS(vms); 1611 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1612 uint8_t *smbios_tables, *smbios_anchor; 1613 size_t smbios_tables_len, smbios_anchor_len; 1614 const char *product = "QEMU Virtual Machine"; 1615 1616 if (kvm_enabled()) { 1617 product = "KVM Virtual Machine"; 1618 } 1619 1620 smbios_set_defaults("QEMU", product, 1621 vmc->smbios_old_sys_ver ? "1.0" : mc->name, false, 1622 true, SMBIOS_ENTRY_POINT_TYPE_64); 1623 1624 smbios_get_tables(MACHINE(vms), NULL, 0, 1625 &smbios_tables, &smbios_tables_len, 1626 &smbios_anchor, &smbios_anchor_len, 1627 &error_fatal); 1628 1629 if (smbios_anchor) { 1630 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-tables", 1631 smbios_tables, smbios_tables_len); 1632 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-anchor", 1633 smbios_anchor, smbios_anchor_len); 1634 } 1635 } 1636 1637 static 1638 void virt_machine_done(Notifier *notifier, void *data) 1639 { 1640 VirtMachineState *vms = container_of(notifier, VirtMachineState, 1641 machine_done); 1642 MachineState *ms = MACHINE(vms); 1643 ARMCPU *cpu = ARM_CPU(first_cpu); 1644 struct arm_boot_info *info = &vms->bootinfo; 1645 AddressSpace *as = arm_boot_address_space(cpu, info); 1646 1647 /* 1648 * If the user provided a dtb, we assume the dynamic sysbus nodes 1649 * already are integrated there. This corresponds to a use case where 1650 * the dynamic sysbus nodes are complex and their generation is not yet 1651 * supported. In that case the user can take charge of the guest dt 1652 * while qemu takes charge of the qom stuff. 1653 */ 1654 if (info->dtb_filename == NULL) { 1655 platform_bus_add_all_fdt_nodes(ms->fdt, "/intc", 1656 vms->memmap[VIRT_PLATFORM_BUS].base, 1657 vms->memmap[VIRT_PLATFORM_BUS].size, 1658 vms->irqmap[VIRT_PLATFORM_BUS]); 1659 } 1660 if (arm_load_dtb(info->dtb_start, info, info->dtb_limit, as, ms) < 0) { 1661 exit(1); 1662 } 1663 1664 fw_cfg_add_extra_pci_roots(vms->bus, vms->fw_cfg); 1665 1666 virt_acpi_setup(vms); 1667 virt_build_smbios(vms); 1668 } 1669 1670 static uint64_t virt_cpu_mp_affinity(VirtMachineState *vms, int idx) 1671 { 1672 uint8_t clustersz = ARM_DEFAULT_CPUS_PER_CLUSTER; 1673 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1674 1675 if (!vmc->disallow_affinity_adjustment) { 1676 /* Adjust MPIDR like 64-bit KVM hosts, which incorporate the 1677 * GIC's target-list limitations. 32-bit KVM hosts currently 1678 * always create clusters of 4 CPUs, but that is expected to 1679 * change when they gain support for gicv3. When KVM is enabled 1680 * it will override the changes we make here, therefore our 1681 * purposes are to make TCG consistent (with 64-bit KVM hosts) 1682 * and to improve SGI efficiency. 1683 */ 1684 if (vms->gic_version == VIRT_GIC_VERSION_2) { 1685 clustersz = GIC_TARGETLIST_BITS; 1686 } else { 1687 clustersz = GICV3_TARGETLIST_BITS; 1688 } 1689 } 1690 return arm_cpu_mp_affinity(idx, clustersz); 1691 } 1692 1693 static void virt_set_memmap(VirtMachineState *vms, int pa_bits) 1694 { 1695 MachineState *ms = MACHINE(vms); 1696 hwaddr base, device_memory_base, device_memory_size, memtop; 1697 int i; 1698 1699 vms->memmap = extended_memmap; 1700 1701 for (i = 0; i < ARRAY_SIZE(base_memmap); i++) { 1702 vms->memmap[i] = base_memmap[i]; 1703 } 1704 1705 if (ms->ram_slots > ACPI_MAX_RAM_SLOTS) { 1706 error_report("unsupported number of memory slots: %"PRIu64, 1707 ms->ram_slots); 1708 exit(EXIT_FAILURE); 1709 } 1710 1711 /* 1712 * !highmem is exactly the same as limiting the PA space to 32bit, 1713 * irrespective of the underlying capabilities of the HW. 1714 */ 1715 if (!vms->highmem) { 1716 pa_bits = 32; 1717 } 1718 1719 /* 1720 * We compute the base of the high IO region depending on the 1721 * amount of initial and device memory. The device memory start/size 1722 * is aligned on 1GiB. We never put the high IO region below 256GiB 1723 * so that if maxram_size is < 255GiB we keep the legacy memory map. 1724 * The device region size assumes 1GiB page max alignment per slot. 1725 */ 1726 device_memory_base = 1727 ROUND_UP(vms->memmap[VIRT_MEM].base + ms->ram_size, GiB); 1728 device_memory_size = ms->maxram_size - ms->ram_size + ms->ram_slots * GiB; 1729 1730 /* Base address of the high IO region */ 1731 memtop = base = device_memory_base + ROUND_UP(device_memory_size, GiB); 1732 if (memtop > BIT_ULL(pa_bits)) { 1733 error_report("Addressing limited to %d bits, but memory exceeds it by %llu bytes\n", 1734 pa_bits, memtop - BIT_ULL(pa_bits)); 1735 exit(EXIT_FAILURE); 1736 } 1737 if (base < device_memory_base) { 1738 error_report("maxmem/slots too huge"); 1739 exit(EXIT_FAILURE); 1740 } 1741 if (base < vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES) { 1742 base = vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES; 1743 } 1744 1745 /* We know for sure that at least the memory fits in the PA space */ 1746 vms->highest_gpa = memtop - 1; 1747 1748 for (i = VIRT_LOWMEMMAP_LAST; i < ARRAY_SIZE(extended_memmap); i++) { 1749 hwaddr size = extended_memmap[i].size; 1750 bool fits; 1751 1752 base = ROUND_UP(base, size); 1753 vms->memmap[i].base = base; 1754 vms->memmap[i].size = size; 1755 1756 /* 1757 * Check each device to see if they fit in the PA space, 1758 * moving highest_gpa as we go. 1759 * 1760 * For each device that doesn't fit, disable it. 1761 */ 1762 fits = (base + size) <= BIT_ULL(pa_bits); 1763 if (fits) { 1764 vms->highest_gpa = base + size - 1; 1765 } 1766 1767 switch (i) { 1768 case VIRT_HIGH_GIC_REDIST2: 1769 vms->highmem_redists &= fits; 1770 break; 1771 case VIRT_HIGH_PCIE_ECAM: 1772 vms->highmem_ecam &= fits; 1773 break; 1774 case VIRT_HIGH_PCIE_MMIO: 1775 vms->highmem_mmio &= fits; 1776 break; 1777 } 1778 1779 base += size; 1780 } 1781 1782 if (device_memory_size > 0) { 1783 ms->device_memory = g_malloc0(sizeof(*ms->device_memory)); 1784 ms->device_memory->base = device_memory_base; 1785 memory_region_init(&ms->device_memory->mr, OBJECT(vms), 1786 "device-memory", device_memory_size); 1787 } 1788 } 1789 1790 /* 1791 * finalize_gic_version - Determines the final gic_version 1792 * according to the gic-version property 1793 * 1794 * Default GIC type is v2 1795 */ 1796 static void finalize_gic_version(VirtMachineState *vms) 1797 { 1798 unsigned int max_cpus = MACHINE(vms)->smp.max_cpus; 1799 1800 if (kvm_enabled()) { 1801 int probe_bitmap; 1802 1803 if (!kvm_irqchip_in_kernel()) { 1804 switch (vms->gic_version) { 1805 case VIRT_GIC_VERSION_HOST: 1806 warn_report( 1807 "gic-version=host not relevant with kernel-irqchip=off " 1808 "as only userspace GICv2 is supported. Using v2 ..."); 1809 return; 1810 case VIRT_GIC_VERSION_MAX: 1811 case VIRT_GIC_VERSION_NOSEL: 1812 vms->gic_version = VIRT_GIC_VERSION_2; 1813 return; 1814 case VIRT_GIC_VERSION_2: 1815 return; 1816 case VIRT_GIC_VERSION_3: 1817 error_report( 1818 "gic-version=3 is not supported with kernel-irqchip=off"); 1819 exit(1); 1820 case VIRT_GIC_VERSION_4: 1821 error_report( 1822 "gic-version=4 is not supported with kernel-irqchip=off"); 1823 exit(1); 1824 } 1825 } 1826 1827 probe_bitmap = kvm_arm_vgic_probe(); 1828 if (!probe_bitmap) { 1829 error_report("Unable to determine GIC version supported by host"); 1830 exit(1); 1831 } 1832 1833 switch (vms->gic_version) { 1834 case VIRT_GIC_VERSION_HOST: 1835 case VIRT_GIC_VERSION_MAX: 1836 if (probe_bitmap & KVM_ARM_VGIC_V3) { 1837 vms->gic_version = VIRT_GIC_VERSION_3; 1838 } else { 1839 vms->gic_version = VIRT_GIC_VERSION_2; 1840 } 1841 return; 1842 case VIRT_GIC_VERSION_NOSEL: 1843 if ((probe_bitmap & KVM_ARM_VGIC_V2) && max_cpus <= GIC_NCPU) { 1844 vms->gic_version = VIRT_GIC_VERSION_2; 1845 } else if (probe_bitmap & KVM_ARM_VGIC_V3) { 1846 /* 1847 * in case the host does not support v2 in-kernel emulation or 1848 * the end-user requested more than 8 VCPUs we now default 1849 * to v3. In any case defaulting to v2 would be broken. 1850 */ 1851 vms->gic_version = VIRT_GIC_VERSION_3; 1852 } else if (max_cpus > GIC_NCPU) { 1853 error_report("host only supports in-kernel GICv2 emulation " 1854 "but more than 8 vcpus are requested"); 1855 exit(1); 1856 } 1857 break; 1858 case VIRT_GIC_VERSION_2: 1859 case VIRT_GIC_VERSION_3: 1860 break; 1861 case VIRT_GIC_VERSION_4: 1862 error_report("gic-version=4 is not supported with KVM"); 1863 exit(1); 1864 } 1865 1866 /* Check chosen version is effectively supported by the host */ 1867 if (vms->gic_version == VIRT_GIC_VERSION_2 && 1868 !(probe_bitmap & KVM_ARM_VGIC_V2)) { 1869 error_report("host does not support in-kernel GICv2 emulation"); 1870 exit(1); 1871 } else if (vms->gic_version == VIRT_GIC_VERSION_3 && 1872 !(probe_bitmap & KVM_ARM_VGIC_V3)) { 1873 error_report("host does not support in-kernel GICv3 emulation"); 1874 exit(1); 1875 } 1876 return; 1877 } 1878 1879 /* TCG mode */ 1880 switch (vms->gic_version) { 1881 case VIRT_GIC_VERSION_NOSEL: 1882 vms->gic_version = VIRT_GIC_VERSION_2; 1883 break; 1884 case VIRT_GIC_VERSION_MAX: 1885 if (module_object_class_by_name("arm-gicv3")) { 1886 /* CONFIG_ARM_GICV3_TCG was set */ 1887 if (vms->virt) { 1888 /* GICv4 only makes sense if CPU has EL2 */ 1889 vms->gic_version = VIRT_GIC_VERSION_4; 1890 } else { 1891 vms->gic_version = VIRT_GIC_VERSION_3; 1892 } 1893 } else { 1894 vms->gic_version = VIRT_GIC_VERSION_2; 1895 } 1896 break; 1897 case VIRT_GIC_VERSION_HOST: 1898 error_report("gic-version=host requires KVM"); 1899 exit(1); 1900 case VIRT_GIC_VERSION_4: 1901 if (!vms->virt) { 1902 error_report("gic-version=4 requires virtualization enabled"); 1903 exit(1); 1904 } 1905 break; 1906 case VIRT_GIC_VERSION_2: 1907 case VIRT_GIC_VERSION_3: 1908 break; 1909 } 1910 } 1911 1912 /* 1913 * virt_cpu_post_init() must be called after the CPUs have 1914 * been realized and the GIC has been created. 1915 */ 1916 static void virt_cpu_post_init(VirtMachineState *vms, MemoryRegion *sysmem) 1917 { 1918 int max_cpus = MACHINE(vms)->smp.max_cpus; 1919 bool aarch64, pmu, steal_time; 1920 CPUState *cpu; 1921 1922 aarch64 = object_property_get_bool(OBJECT(first_cpu), "aarch64", NULL); 1923 pmu = object_property_get_bool(OBJECT(first_cpu), "pmu", NULL); 1924 steal_time = object_property_get_bool(OBJECT(first_cpu), 1925 "kvm-steal-time", NULL); 1926 1927 if (kvm_enabled()) { 1928 hwaddr pvtime_reg_base = vms->memmap[VIRT_PVTIME].base; 1929 hwaddr pvtime_reg_size = vms->memmap[VIRT_PVTIME].size; 1930 1931 if (steal_time) { 1932 MemoryRegion *pvtime = g_new(MemoryRegion, 1); 1933 hwaddr pvtime_size = max_cpus * PVTIME_SIZE_PER_CPU; 1934 1935 /* The memory region size must be a multiple of host page size. */ 1936 pvtime_size = REAL_HOST_PAGE_ALIGN(pvtime_size); 1937 1938 if (pvtime_size > pvtime_reg_size) { 1939 error_report("pvtime requires a %" HWADDR_PRId 1940 " byte memory region for %d CPUs," 1941 " but only %" HWADDR_PRId " has been reserved", 1942 pvtime_size, max_cpus, pvtime_reg_size); 1943 exit(1); 1944 } 1945 1946 memory_region_init_ram(pvtime, NULL, "pvtime", pvtime_size, NULL); 1947 memory_region_add_subregion(sysmem, pvtime_reg_base, pvtime); 1948 } 1949 1950 CPU_FOREACH(cpu) { 1951 if (pmu) { 1952 assert(arm_feature(&ARM_CPU(cpu)->env, ARM_FEATURE_PMU)); 1953 if (kvm_irqchip_in_kernel()) { 1954 kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ)); 1955 } 1956 kvm_arm_pmu_init(cpu); 1957 } 1958 if (steal_time) { 1959 kvm_arm_pvtime_init(cpu, pvtime_reg_base + 1960 cpu->cpu_index * PVTIME_SIZE_PER_CPU); 1961 } 1962 } 1963 } else { 1964 if (aarch64 && vms->highmem) { 1965 int requested_pa_size = 64 - clz64(vms->highest_gpa); 1966 int pamax = arm_pamax(ARM_CPU(first_cpu)); 1967 1968 if (pamax < requested_pa_size) { 1969 error_report("VCPU supports less PA bits (%d) than " 1970 "requested by the memory map (%d)", 1971 pamax, requested_pa_size); 1972 exit(1); 1973 } 1974 } 1975 } 1976 } 1977 1978 static void machvirt_init(MachineState *machine) 1979 { 1980 VirtMachineState *vms = VIRT_MACHINE(machine); 1981 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(machine); 1982 MachineClass *mc = MACHINE_GET_CLASS(machine); 1983 const CPUArchIdList *possible_cpus; 1984 MemoryRegion *sysmem = get_system_memory(); 1985 MemoryRegion *secure_sysmem = NULL; 1986 MemoryRegion *tag_sysmem = NULL; 1987 MemoryRegion *secure_tag_sysmem = NULL; 1988 int n, virt_max_cpus; 1989 bool firmware_loaded; 1990 bool aarch64 = true; 1991 bool has_ged = !vmc->no_ged; 1992 unsigned int smp_cpus = machine->smp.cpus; 1993 unsigned int max_cpus = machine->smp.max_cpus; 1994 1995 if (!cpu_type_valid(machine->cpu_type)) { 1996 error_report("mach-virt: CPU type %s not supported", machine->cpu_type); 1997 exit(1); 1998 } 1999 2000 possible_cpus = mc->possible_cpu_arch_ids(machine); 2001 2002 /* 2003 * In accelerated mode, the memory map is computed earlier in kvm_type() 2004 * to create a VM with the right number of IPA bits. 2005 */ 2006 if (!vms->memmap) { 2007 Object *cpuobj; 2008 ARMCPU *armcpu; 2009 int pa_bits; 2010 2011 /* 2012 * Instanciate a temporary CPU object to find out about what 2013 * we are about to deal with. Once this is done, get rid of 2014 * the object. 2015 */ 2016 cpuobj = object_new(possible_cpus->cpus[0].type); 2017 armcpu = ARM_CPU(cpuobj); 2018 2019 pa_bits = arm_pamax(armcpu); 2020 2021 object_unref(cpuobj); 2022 2023 virt_set_memmap(vms, pa_bits); 2024 } 2025 2026 /* We can probe only here because during property set 2027 * KVM is not available yet 2028 */ 2029 finalize_gic_version(vms); 2030 2031 if (vms->secure) { 2032 /* 2033 * The Secure view of the world is the same as the NonSecure, 2034 * but with a few extra devices. Create it as a container region 2035 * containing the system memory at low priority; any secure-only 2036 * devices go in at higher priority and take precedence. 2037 */ 2038 secure_sysmem = g_new(MemoryRegion, 1); 2039 memory_region_init(secure_sysmem, OBJECT(machine), "secure-memory", 2040 UINT64_MAX); 2041 memory_region_add_subregion_overlap(secure_sysmem, 0, sysmem, -1); 2042 } 2043 2044 firmware_loaded = virt_firmware_init(vms, sysmem, 2045 secure_sysmem ?: sysmem); 2046 2047 /* If we have an EL3 boot ROM then the assumption is that it will 2048 * implement PSCI itself, so disable QEMU's internal implementation 2049 * so it doesn't get in the way. Instead of starting secondary 2050 * CPUs in PSCI powerdown state we will start them all running and 2051 * let the boot ROM sort them out. 2052 * The usual case is that we do use QEMU's PSCI implementation; 2053 * if the guest has EL2 then we will use SMC as the conduit, 2054 * and otherwise we will use HVC (for backwards compatibility and 2055 * because if we're using KVM then we must use HVC). 2056 */ 2057 if (vms->secure && firmware_loaded) { 2058 vms->psci_conduit = QEMU_PSCI_CONDUIT_DISABLED; 2059 } else if (vms->virt) { 2060 vms->psci_conduit = QEMU_PSCI_CONDUIT_SMC; 2061 } else { 2062 vms->psci_conduit = QEMU_PSCI_CONDUIT_HVC; 2063 } 2064 2065 /* 2066 * The maximum number of CPUs depends on the GIC version, or on how 2067 * many redistributors we can fit into the memory map (which in turn 2068 * depends on whether this is a GICv3 or v4). 2069 */ 2070 if (vms->gic_version == VIRT_GIC_VERSION_2) { 2071 virt_max_cpus = GIC_NCPU; 2072 } else { 2073 virt_max_cpus = virt_redist_capacity(vms, VIRT_GIC_REDIST) + 2074 virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 2075 } 2076 2077 if (max_cpus > virt_max_cpus) { 2078 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs " 2079 "supported by machine 'mach-virt' (%d)", 2080 max_cpus, virt_max_cpus); 2081 exit(1); 2082 } 2083 2084 if (vms->secure && (kvm_enabled() || hvf_enabled())) { 2085 error_report("mach-virt: %s does not support providing " 2086 "Security extensions (TrustZone) to the guest CPU", 2087 kvm_enabled() ? "KVM" : "HVF"); 2088 exit(1); 2089 } 2090 2091 if (vms->virt && (kvm_enabled() || hvf_enabled())) { 2092 error_report("mach-virt: %s does not support providing " 2093 "Virtualization extensions to the guest CPU", 2094 kvm_enabled() ? "KVM" : "HVF"); 2095 exit(1); 2096 } 2097 2098 if (vms->mte && (kvm_enabled() || hvf_enabled())) { 2099 error_report("mach-virt: %s does not support providing " 2100 "MTE to the guest CPU", 2101 kvm_enabled() ? "KVM" : "HVF"); 2102 exit(1); 2103 } 2104 2105 create_fdt(vms); 2106 2107 assert(possible_cpus->len == max_cpus); 2108 for (n = 0; n < possible_cpus->len; n++) { 2109 Object *cpuobj; 2110 CPUState *cs; 2111 2112 if (n >= smp_cpus) { 2113 break; 2114 } 2115 2116 cpuobj = object_new(possible_cpus->cpus[n].type); 2117 object_property_set_int(cpuobj, "mp-affinity", 2118 possible_cpus->cpus[n].arch_id, NULL); 2119 2120 cs = CPU(cpuobj); 2121 cs->cpu_index = n; 2122 2123 numa_cpu_pre_plug(&possible_cpus->cpus[cs->cpu_index], DEVICE(cpuobj), 2124 &error_fatal); 2125 2126 aarch64 &= object_property_get_bool(cpuobj, "aarch64", NULL); 2127 2128 if (!vms->secure) { 2129 object_property_set_bool(cpuobj, "has_el3", false, NULL); 2130 } 2131 2132 if (!vms->virt && object_property_find(cpuobj, "has_el2")) { 2133 object_property_set_bool(cpuobj, "has_el2", false, NULL); 2134 } 2135 2136 if (vmc->kvm_no_adjvtime && 2137 object_property_find(cpuobj, "kvm-no-adjvtime")) { 2138 object_property_set_bool(cpuobj, "kvm-no-adjvtime", true, NULL); 2139 } 2140 2141 if (vmc->no_kvm_steal_time && 2142 object_property_find(cpuobj, "kvm-steal-time")) { 2143 object_property_set_bool(cpuobj, "kvm-steal-time", false, NULL); 2144 } 2145 2146 if (vmc->no_pmu && object_property_find(cpuobj, "pmu")) { 2147 object_property_set_bool(cpuobj, "pmu", false, NULL); 2148 } 2149 2150 if (vmc->no_tcg_lpa2 && object_property_find(cpuobj, "lpa2")) { 2151 object_property_set_bool(cpuobj, "lpa2", false, NULL); 2152 } 2153 2154 if (object_property_find(cpuobj, "reset-cbar")) { 2155 object_property_set_int(cpuobj, "reset-cbar", 2156 vms->memmap[VIRT_CPUPERIPHS].base, 2157 &error_abort); 2158 } 2159 2160 object_property_set_link(cpuobj, "memory", OBJECT(sysmem), 2161 &error_abort); 2162 if (vms->secure) { 2163 object_property_set_link(cpuobj, "secure-memory", 2164 OBJECT(secure_sysmem), &error_abort); 2165 } 2166 2167 if (vms->mte) { 2168 /* Create the memory region only once, but link to all cpus. */ 2169 if (!tag_sysmem) { 2170 /* 2171 * The property exists only if MemTag is supported. 2172 * If it is, we must allocate the ram to back that up. 2173 */ 2174 if (!object_property_find(cpuobj, "tag-memory")) { 2175 error_report("MTE requested, but not supported " 2176 "by the guest CPU"); 2177 exit(1); 2178 } 2179 2180 tag_sysmem = g_new(MemoryRegion, 1); 2181 memory_region_init(tag_sysmem, OBJECT(machine), 2182 "tag-memory", UINT64_MAX / 32); 2183 2184 if (vms->secure) { 2185 secure_tag_sysmem = g_new(MemoryRegion, 1); 2186 memory_region_init(secure_tag_sysmem, OBJECT(machine), 2187 "secure-tag-memory", UINT64_MAX / 32); 2188 2189 /* As with ram, secure-tag takes precedence over tag. */ 2190 memory_region_add_subregion_overlap(secure_tag_sysmem, 0, 2191 tag_sysmem, -1); 2192 } 2193 } 2194 2195 object_property_set_link(cpuobj, "tag-memory", OBJECT(tag_sysmem), 2196 &error_abort); 2197 if (vms->secure) { 2198 object_property_set_link(cpuobj, "secure-tag-memory", 2199 OBJECT(secure_tag_sysmem), 2200 &error_abort); 2201 } 2202 } 2203 2204 qdev_realize(DEVICE(cpuobj), NULL, &error_fatal); 2205 object_unref(cpuobj); 2206 } 2207 fdt_add_timer_nodes(vms); 2208 fdt_add_cpu_nodes(vms); 2209 2210 memory_region_add_subregion(sysmem, vms->memmap[VIRT_MEM].base, 2211 machine->ram); 2212 if (machine->device_memory) { 2213 memory_region_add_subregion(sysmem, machine->device_memory->base, 2214 &machine->device_memory->mr); 2215 } 2216 2217 virt_flash_fdt(vms, sysmem, secure_sysmem ?: sysmem); 2218 2219 create_gic(vms, sysmem); 2220 2221 virt_cpu_post_init(vms, sysmem); 2222 2223 fdt_add_pmu_nodes(vms); 2224 2225 create_uart(vms, VIRT_UART, sysmem, serial_hd(0)); 2226 2227 if (vms->secure) { 2228 create_secure_ram(vms, secure_sysmem, secure_tag_sysmem); 2229 create_uart(vms, VIRT_SECURE_UART, secure_sysmem, serial_hd(1)); 2230 } 2231 2232 if (tag_sysmem) { 2233 create_tag_ram(tag_sysmem, vms->memmap[VIRT_MEM].base, 2234 machine->ram_size, "mach-virt.tag"); 2235 } 2236 2237 vms->highmem_ecam &= (!firmware_loaded || aarch64); 2238 2239 create_rtc(vms); 2240 2241 create_pcie(vms); 2242 2243 if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)) { 2244 vms->acpi_dev = create_acpi_ged(vms); 2245 } else { 2246 create_gpio_devices(vms, VIRT_GPIO, sysmem); 2247 } 2248 2249 if (vms->secure && !vmc->no_secure_gpio) { 2250 create_gpio_devices(vms, VIRT_SECURE_GPIO, secure_sysmem); 2251 } 2252 2253 /* connect powerdown request */ 2254 vms->powerdown_notifier.notify = virt_powerdown_req; 2255 qemu_register_powerdown_notifier(&vms->powerdown_notifier); 2256 2257 /* Create mmio transports, so the user can create virtio backends 2258 * (which will be automatically plugged in to the transports). If 2259 * no backend is created the transport will just sit harmlessly idle. 2260 */ 2261 create_virtio_devices(vms); 2262 2263 vms->fw_cfg = create_fw_cfg(vms, &address_space_memory); 2264 rom_set_fw(vms->fw_cfg); 2265 2266 create_platform_bus(vms); 2267 2268 if (machine->nvdimms_state->is_enabled) { 2269 const struct AcpiGenericAddress arm_virt_nvdimm_acpi_dsmio = { 2270 .space_id = AML_AS_SYSTEM_MEMORY, 2271 .address = vms->memmap[VIRT_NVDIMM_ACPI].base, 2272 .bit_width = NVDIMM_ACPI_IO_LEN << 3 2273 }; 2274 2275 nvdimm_init_acpi_state(machine->nvdimms_state, sysmem, 2276 arm_virt_nvdimm_acpi_dsmio, 2277 vms->fw_cfg, OBJECT(vms)); 2278 } 2279 2280 vms->bootinfo.ram_size = machine->ram_size; 2281 vms->bootinfo.board_id = -1; 2282 vms->bootinfo.loader_start = vms->memmap[VIRT_MEM].base; 2283 vms->bootinfo.get_dtb = machvirt_dtb; 2284 vms->bootinfo.skip_dtb_autoload = true; 2285 vms->bootinfo.firmware_loaded = firmware_loaded; 2286 vms->bootinfo.psci_conduit = vms->psci_conduit; 2287 arm_load_kernel(ARM_CPU(first_cpu), machine, &vms->bootinfo); 2288 2289 vms->machine_done.notify = virt_machine_done; 2290 qemu_add_machine_init_done_notifier(&vms->machine_done); 2291 } 2292 2293 static bool virt_get_secure(Object *obj, Error **errp) 2294 { 2295 VirtMachineState *vms = VIRT_MACHINE(obj); 2296 2297 return vms->secure; 2298 } 2299 2300 static void virt_set_secure(Object *obj, bool value, Error **errp) 2301 { 2302 VirtMachineState *vms = VIRT_MACHINE(obj); 2303 2304 vms->secure = value; 2305 } 2306 2307 static bool virt_get_virt(Object *obj, Error **errp) 2308 { 2309 VirtMachineState *vms = VIRT_MACHINE(obj); 2310 2311 return vms->virt; 2312 } 2313 2314 static void virt_set_virt(Object *obj, bool value, Error **errp) 2315 { 2316 VirtMachineState *vms = VIRT_MACHINE(obj); 2317 2318 vms->virt = value; 2319 } 2320 2321 static bool virt_get_highmem(Object *obj, Error **errp) 2322 { 2323 VirtMachineState *vms = VIRT_MACHINE(obj); 2324 2325 return vms->highmem; 2326 } 2327 2328 static void virt_set_highmem(Object *obj, bool value, Error **errp) 2329 { 2330 VirtMachineState *vms = VIRT_MACHINE(obj); 2331 2332 vms->highmem = value; 2333 } 2334 2335 static bool virt_get_its(Object *obj, Error **errp) 2336 { 2337 VirtMachineState *vms = VIRT_MACHINE(obj); 2338 2339 return vms->its; 2340 } 2341 2342 static void virt_set_its(Object *obj, bool value, Error **errp) 2343 { 2344 VirtMachineState *vms = VIRT_MACHINE(obj); 2345 2346 vms->its = value; 2347 } 2348 2349 static bool virt_get_dtb_randomness(Object *obj, Error **errp) 2350 { 2351 VirtMachineState *vms = VIRT_MACHINE(obj); 2352 2353 return vms->dtb_randomness; 2354 } 2355 2356 static void virt_set_dtb_randomness(Object *obj, bool value, Error **errp) 2357 { 2358 VirtMachineState *vms = VIRT_MACHINE(obj); 2359 2360 vms->dtb_randomness = value; 2361 } 2362 2363 static char *virt_get_oem_id(Object *obj, Error **errp) 2364 { 2365 VirtMachineState *vms = VIRT_MACHINE(obj); 2366 2367 return g_strdup(vms->oem_id); 2368 } 2369 2370 static void virt_set_oem_id(Object *obj, const char *value, Error **errp) 2371 { 2372 VirtMachineState *vms = VIRT_MACHINE(obj); 2373 size_t len = strlen(value); 2374 2375 if (len > 6) { 2376 error_setg(errp, 2377 "User specified oem-id value is bigger than 6 bytes in size"); 2378 return; 2379 } 2380 2381 strncpy(vms->oem_id, value, 6); 2382 } 2383 2384 static char *virt_get_oem_table_id(Object *obj, Error **errp) 2385 { 2386 VirtMachineState *vms = VIRT_MACHINE(obj); 2387 2388 return g_strdup(vms->oem_table_id); 2389 } 2390 2391 static void virt_set_oem_table_id(Object *obj, const char *value, 2392 Error **errp) 2393 { 2394 VirtMachineState *vms = VIRT_MACHINE(obj); 2395 size_t len = strlen(value); 2396 2397 if (len > 8) { 2398 error_setg(errp, 2399 "User specified oem-table-id value is bigger than 8 bytes in size"); 2400 return; 2401 } 2402 strncpy(vms->oem_table_id, value, 8); 2403 } 2404 2405 2406 bool virt_is_acpi_enabled(VirtMachineState *vms) 2407 { 2408 if (vms->acpi == ON_OFF_AUTO_OFF) { 2409 return false; 2410 } 2411 return true; 2412 } 2413 2414 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 2415 void *opaque, Error **errp) 2416 { 2417 VirtMachineState *vms = VIRT_MACHINE(obj); 2418 OnOffAuto acpi = vms->acpi; 2419 2420 visit_type_OnOffAuto(v, name, &acpi, errp); 2421 } 2422 2423 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 2424 void *opaque, Error **errp) 2425 { 2426 VirtMachineState *vms = VIRT_MACHINE(obj); 2427 2428 visit_type_OnOffAuto(v, name, &vms->acpi, errp); 2429 } 2430 2431 static bool virt_get_ras(Object *obj, Error **errp) 2432 { 2433 VirtMachineState *vms = VIRT_MACHINE(obj); 2434 2435 return vms->ras; 2436 } 2437 2438 static void virt_set_ras(Object *obj, bool value, Error **errp) 2439 { 2440 VirtMachineState *vms = VIRT_MACHINE(obj); 2441 2442 vms->ras = value; 2443 } 2444 2445 static bool virt_get_mte(Object *obj, Error **errp) 2446 { 2447 VirtMachineState *vms = VIRT_MACHINE(obj); 2448 2449 return vms->mte; 2450 } 2451 2452 static void virt_set_mte(Object *obj, bool value, Error **errp) 2453 { 2454 VirtMachineState *vms = VIRT_MACHINE(obj); 2455 2456 vms->mte = value; 2457 } 2458 2459 static char *virt_get_gic_version(Object *obj, Error **errp) 2460 { 2461 VirtMachineState *vms = VIRT_MACHINE(obj); 2462 const char *val; 2463 2464 switch (vms->gic_version) { 2465 case VIRT_GIC_VERSION_4: 2466 val = "4"; 2467 break; 2468 case VIRT_GIC_VERSION_3: 2469 val = "3"; 2470 break; 2471 default: 2472 val = "2"; 2473 break; 2474 } 2475 return g_strdup(val); 2476 } 2477 2478 static void virt_set_gic_version(Object *obj, const char *value, Error **errp) 2479 { 2480 VirtMachineState *vms = VIRT_MACHINE(obj); 2481 2482 if (!strcmp(value, "4")) { 2483 vms->gic_version = VIRT_GIC_VERSION_4; 2484 } else if (!strcmp(value, "3")) { 2485 vms->gic_version = VIRT_GIC_VERSION_3; 2486 } else if (!strcmp(value, "2")) { 2487 vms->gic_version = VIRT_GIC_VERSION_2; 2488 } else if (!strcmp(value, "host")) { 2489 vms->gic_version = VIRT_GIC_VERSION_HOST; /* Will probe later */ 2490 } else if (!strcmp(value, "max")) { 2491 vms->gic_version = VIRT_GIC_VERSION_MAX; /* Will probe later */ 2492 } else { 2493 error_setg(errp, "Invalid gic-version value"); 2494 error_append_hint(errp, "Valid values are 3, 2, host, max.\n"); 2495 } 2496 } 2497 2498 static char *virt_get_iommu(Object *obj, Error **errp) 2499 { 2500 VirtMachineState *vms = VIRT_MACHINE(obj); 2501 2502 switch (vms->iommu) { 2503 case VIRT_IOMMU_NONE: 2504 return g_strdup("none"); 2505 case VIRT_IOMMU_SMMUV3: 2506 return g_strdup("smmuv3"); 2507 default: 2508 g_assert_not_reached(); 2509 } 2510 } 2511 2512 static void virt_set_iommu(Object *obj, const char *value, Error **errp) 2513 { 2514 VirtMachineState *vms = VIRT_MACHINE(obj); 2515 2516 if (!strcmp(value, "smmuv3")) { 2517 vms->iommu = VIRT_IOMMU_SMMUV3; 2518 } else if (!strcmp(value, "none")) { 2519 vms->iommu = VIRT_IOMMU_NONE; 2520 } else { 2521 error_setg(errp, "Invalid iommu value"); 2522 error_append_hint(errp, "Valid values are none, smmuv3.\n"); 2523 } 2524 } 2525 2526 static bool virt_get_default_bus_bypass_iommu(Object *obj, Error **errp) 2527 { 2528 VirtMachineState *vms = VIRT_MACHINE(obj); 2529 2530 return vms->default_bus_bypass_iommu; 2531 } 2532 2533 static void virt_set_default_bus_bypass_iommu(Object *obj, bool value, 2534 Error **errp) 2535 { 2536 VirtMachineState *vms = VIRT_MACHINE(obj); 2537 2538 vms->default_bus_bypass_iommu = value; 2539 } 2540 2541 static CpuInstanceProperties 2542 virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index) 2543 { 2544 MachineClass *mc = MACHINE_GET_CLASS(ms); 2545 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 2546 2547 assert(cpu_index < possible_cpus->len); 2548 return possible_cpus->cpus[cpu_index].props; 2549 } 2550 2551 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) 2552 { 2553 int64_t socket_id = ms->possible_cpus->cpus[idx].props.socket_id; 2554 2555 return socket_id % ms->numa_state->num_nodes; 2556 } 2557 2558 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) 2559 { 2560 int n; 2561 unsigned int max_cpus = ms->smp.max_cpus; 2562 VirtMachineState *vms = VIRT_MACHINE(ms); 2563 MachineClass *mc = MACHINE_GET_CLASS(vms); 2564 2565 if (ms->possible_cpus) { 2566 assert(ms->possible_cpus->len == max_cpus); 2567 return ms->possible_cpus; 2568 } 2569 2570 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 2571 sizeof(CPUArchId) * max_cpus); 2572 ms->possible_cpus->len = max_cpus; 2573 for (n = 0; n < ms->possible_cpus->len; n++) { 2574 ms->possible_cpus->cpus[n].type = ms->cpu_type; 2575 ms->possible_cpus->cpus[n].arch_id = 2576 virt_cpu_mp_affinity(vms, n); 2577 2578 assert(!mc->smp_props.dies_supported); 2579 ms->possible_cpus->cpus[n].props.has_socket_id = true; 2580 ms->possible_cpus->cpus[n].props.socket_id = 2581 n / (ms->smp.clusters * ms->smp.cores * ms->smp.threads); 2582 ms->possible_cpus->cpus[n].props.has_cluster_id = true; 2583 ms->possible_cpus->cpus[n].props.cluster_id = 2584 (n / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters; 2585 ms->possible_cpus->cpus[n].props.has_core_id = true; 2586 ms->possible_cpus->cpus[n].props.core_id = 2587 (n / ms->smp.threads) % ms->smp.cores; 2588 ms->possible_cpus->cpus[n].props.has_thread_id = true; 2589 ms->possible_cpus->cpus[n].props.thread_id = 2590 n % ms->smp.threads; 2591 } 2592 return ms->possible_cpus; 2593 } 2594 2595 static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 2596 Error **errp) 2597 { 2598 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2599 const MachineState *ms = MACHINE(hotplug_dev); 2600 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2601 2602 if (!vms->acpi_dev) { 2603 error_setg(errp, 2604 "memory hotplug is not enabled: missing acpi-ged device"); 2605 return; 2606 } 2607 2608 if (vms->mte) { 2609 error_setg(errp, "memory hotplug is not enabled: MTE is enabled"); 2610 return; 2611 } 2612 2613 if (is_nvdimm && !ms->nvdimms_state->is_enabled) { 2614 error_setg(errp, "nvdimm is not enabled: add 'nvdimm=on' to '-M'"); 2615 return; 2616 } 2617 2618 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp); 2619 } 2620 2621 static void virt_memory_plug(HotplugHandler *hotplug_dev, 2622 DeviceState *dev, Error **errp) 2623 { 2624 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2625 MachineState *ms = MACHINE(hotplug_dev); 2626 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2627 2628 pc_dimm_plug(PC_DIMM(dev), MACHINE(vms)); 2629 2630 if (is_nvdimm) { 2631 nvdimm_plug(ms->nvdimms_state); 2632 } 2633 2634 hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev), 2635 dev, &error_abort); 2636 } 2637 2638 static void virt_virtio_md_pci_pre_plug(HotplugHandler *hotplug_dev, 2639 DeviceState *dev, Error **errp) 2640 { 2641 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2642 Error *local_err = NULL; 2643 2644 if (!hotplug_dev2 && dev->hotplugged) { 2645 /* 2646 * Without a bus hotplug handler, we cannot control the plug/unplug 2647 * order. We should never reach this point when hotplugging on ARM. 2648 * However, it's nice to add a safety net, similar to what we have 2649 * on x86. 2650 */ 2651 error_setg(errp, "hotplug of virtio based memory devices not supported" 2652 " on this bus."); 2653 return; 2654 } 2655 /* 2656 * First, see if we can plug this memory device at all. If that 2657 * succeeds, branch of to the actual hotplug handler. 2658 */ 2659 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL, 2660 &local_err); 2661 if (!local_err && hotplug_dev2) { 2662 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err); 2663 } 2664 error_propagate(errp, local_err); 2665 } 2666 2667 static void virt_virtio_md_pci_plug(HotplugHandler *hotplug_dev, 2668 DeviceState *dev, Error **errp) 2669 { 2670 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2671 Error *local_err = NULL; 2672 2673 /* 2674 * Plug the memory device first and then branch off to the actual 2675 * hotplug handler. If that one fails, we can easily undo the memory 2676 * device bits. 2677 */ 2678 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2679 if (hotplug_dev2) { 2680 hotplug_handler_plug(hotplug_dev2, dev, &local_err); 2681 if (local_err) { 2682 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2683 } 2684 } 2685 error_propagate(errp, local_err); 2686 } 2687 2688 static void virt_virtio_md_pci_unplug_request(HotplugHandler *hotplug_dev, 2689 DeviceState *dev, Error **errp) 2690 { 2691 /* We don't support hot unplug of virtio based memory devices */ 2692 error_setg(errp, "virtio based memory devices cannot be unplugged."); 2693 } 2694 2695 2696 static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, 2697 DeviceState *dev, Error **errp) 2698 { 2699 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2700 2701 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2702 virt_memory_pre_plug(hotplug_dev, dev, errp); 2703 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2704 virt_virtio_md_pci_pre_plug(hotplug_dev, dev, errp); 2705 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2706 hwaddr db_start = 0, db_end = 0; 2707 char *resv_prop_str; 2708 2709 if (vms->iommu != VIRT_IOMMU_NONE) { 2710 error_setg(errp, "virt machine does not support multiple IOMMUs"); 2711 return; 2712 } 2713 2714 switch (vms->msi_controller) { 2715 case VIRT_MSI_CTRL_NONE: 2716 return; 2717 case VIRT_MSI_CTRL_ITS: 2718 /* GITS_TRANSLATER page */ 2719 db_start = base_memmap[VIRT_GIC_ITS].base + 0x10000; 2720 db_end = base_memmap[VIRT_GIC_ITS].base + 2721 base_memmap[VIRT_GIC_ITS].size - 1; 2722 break; 2723 case VIRT_MSI_CTRL_GICV2M: 2724 /* MSI_SETSPI_NS page */ 2725 db_start = base_memmap[VIRT_GIC_V2M].base; 2726 db_end = db_start + base_memmap[VIRT_GIC_V2M].size - 1; 2727 break; 2728 } 2729 resv_prop_str = g_strdup_printf("0x%"PRIx64":0x%"PRIx64":%u", 2730 db_start, db_end, 2731 VIRTIO_IOMMU_RESV_MEM_T_MSI); 2732 2733 object_property_set_uint(OBJECT(dev), "len-reserved-regions", 1, errp); 2734 object_property_set_str(OBJECT(dev), "reserved-regions[0]", 2735 resv_prop_str, errp); 2736 g_free(resv_prop_str); 2737 } 2738 } 2739 2740 static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, 2741 DeviceState *dev, Error **errp) 2742 { 2743 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2744 2745 if (vms->platform_bus_dev) { 2746 MachineClass *mc = MACHINE_GET_CLASS(vms); 2747 2748 if (device_is_dynamic_sysbus(mc, dev)) { 2749 platform_bus_link_device(PLATFORM_BUS_DEVICE(vms->platform_bus_dev), 2750 SYS_BUS_DEVICE(dev)); 2751 } 2752 } 2753 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2754 virt_memory_plug(hotplug_dev, dev, errp); 2755 } 2756 2757 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2758 virt_virtio_md_pci_plug(hotplug_dev, dev, errp); 2759 } 2760 2761 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2762 PCIDevice *pdev = PCI_DEVICE(dev); 2763 2764 vms->iommu = VIRT_IOMMU_VIRTIO; 2765 vms->virtio_iommu_bdf = pci_get_bdf(pdev); 2766 create_virtio_iommu_dt_bindings(vms); 2767 } 2768 } 2769 2770 static void virt_dimm_unplug_request(HotplugHandler *hotplug_dev, 2771 DeviceState *dev, Error **errp) 2772 { 2773 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2774 Error *local_err = NULL; 2775 2776 if (!vms->acpi_dev) { 2777 error_setg(&local_err, 2778 "memory hotplug is not enabled: missing acpi-ged device"); 2779 goto out; 2780 } 2781 2782 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 2783 error_setg(&local_err, 2784 "nvdimm device hot unplug is not supported yet."); 2785 goto out; 2786 } 2787 2788 hotplug_handler_unplug_request(HOTPLUG_HANDLER(vms->acpi_dev), dev, 2789 &local_err); 2790 out: 2791 error_propagate(errp, local_err); 2792 } 2793 2794 static void virt_dimm_unplug(HotplugHandler *hotplug_dev, 2795 DeviceState *dev, Error **errp) 2796 { 2797 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2798 Error *local_err = NULL; 2799 2800 hotplug_handler_unplug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &local_err); 2801 if (local_err) { 2802 goto out; 2803 } 2804 2805 pc_dimm_unplug(PC_DIMM(dev), MACHINE(vms)); 2806 qdev_unrealize(dev); 2807 2808 out: 2809 error_propagate(errp, local_err); 2810 } 2811 2812 static void virt_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, 2813 DeviceState *dev, Error **errp) 2814 { 2815 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2816 virt_dimm_unplug_request(hotplug_dev, dev, errp); 2817 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2818 virt_virtio_md_pci_unplug_request(hotplug_dev, dev, errp); 2819 } else { 2820 error_setg(errp, "device unplug request for unsupported device" 2821 " type: %s", object_get_typename(OBJECT(dev))); 2822 } 2823 } 2824 2825 static void virt_machine_device_unplug_cb(HotplugHandler *hotplug_dev, 2826 DeviceState *dev, Error **errp) 2827 { 2828 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2829 virt_dimm_unplug(hotplug_dev, dev, errp); 2830 } else { 2831 error_setg(errp, "virt: device unplug for unsupported device" 2832 " type: %s", object_get_typename(OBJECT(dev))); 2833 } 2834 } 2835 2836 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 2837 DeviceState *dev) 2838 { 2839 MachineClass *mc = MACHINE_GET_CLASS(machine); 2840 2841 if (device_is_dynamic_sysbus(mc, dev) || 2842 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || 2843 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI) || 2844 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2845 return HOTPLUG_HANDLER(machine); 2846 } 2847 return NULL; 2848 } 2849 2850 /* 2851 * for arm64 kvm_type [7-0] encodes the requested number of bits 2852 * in the IPA address space 2853 */ 2854 static int virt_kvm_type(MachineState *ms, const char *type_str) 2855 { 2856 VirtMachineState *vms = VIRT_MACHINE(ms); 2857 int max_vm_pa_size, requested_pa_size; 2858 bool fixed_ipa; 2859 2860 max_vm_pa_size = kvm_arm_get_max_vm_ipa_size(ms, &fixed_ipa); 2861 2862 /* we freeze the memory map to compute the highest gpa */ 2863 virt_set_memmap(vms, max_vm_pa_size); 2864 2865 requested_pa_size = 64 - clz64(vms->highest_gpa); 2866 2867 /* 2868 * KVM requires the IPA size to be at least 32 bits. 2869 */ 2870 if (requested_pa_size < 32) { 2871 requested_pa_size = 32; 2872 } 2873 2874 if (requested_pa_size > max_vm_pa_size) { 2875 error_report("-m and ,maxmem option values " 2876 "require an IPA range (%d bits) larger than " 2877 "the one supported by the host (%d bits)", 2878 requested_pa_size, max_vm_pa_size); 2879 exit(1); 2880 } 2881 /* 2882 * We return the requested PA log size, unless KVM only supports 2883 * the implicit legacy 40b IPA setting, in which case the kvm_type 2884 * must be 0. 2885 */ 2886 return fixed_ipa ? 0 : requested_pa_size; 2887 } 2888 2889 static void virt_machine_class_init(ObjectClass *oc, void *data) 2890 { 2891 MachineClass *mc = MACHINE_CLASS(oc); 2892 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 2893 2894 mc->init = machvirt_init; 2895 /* Start with max_cpus set to 512, which is the maximum supported by KVM. 2896 * The value may be reduced later when we have more information about the 2897 * configuration of the particular instance. 2898 */ 2899 mc->max_cpus = 512; 2900 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_CALXEDA_XGMAC); 2901 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_AMD_XGBE); 2902 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 2903 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_PLATFORM); 2904 #ifdef CONFIG_TPM 2905 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 2906 #endif 2907 mc->block_default_type = IF_VIRTIO; 2908 mc->no_cdrom = 1; 2909 mc->pci_allow_0_address = true; 2910 /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */ 2911 mc->minimum_page_bits = 12; 2912 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; 2913 mc->cpu_index_to_instance_props = virt_cpu_index_to_props; 2914 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15"); 2915 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; 2916 mc->kvm_type = virt_kvm_type; 2917 assert(!mc->get_hotplug_handler); 2918 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 2919 hc->pre_plug = virt_machine_device_pre_plug_cb; 2920 hc->plug = virt_machine_device_plug_cb; 2921 hc->unplug_request = virt_machine_device_unplug_request_cb; 2922 hc->unplug = virt_machine_device_unplug_cb; 2923 mc->nvdimm_supported = true; 2924 mc->smp_props.clusters_supported = true; 2925 mc->auto_enable_numa_with_memhp = true; 2926 mc->auto_enable_numa_with_memdev = true; 2927 mc->default_ram_id = "mach-virt.ram"; 2928 2929 object_class_property_add(oc, "acpi", "OnOffAuto", 2930 virt_get_acpi, virt_set_acpi, 2931 NULL, NULL); 2932 object_class_property_set_description(oc, "acpi", 2933 "Enable ACPI"); 2934 object_class_property_add_bool(oc, "secure", virt_get_secure, 2935 virt_set_secure); 2936 object_class_property_set_description(oc, "secure", 2937 "Set on/off to enable/disable the ARM " 2938 "Security Extensions (TrustZone)"); 2939 2940 object_class_property_add_bool(oc, "virtualization", virt_get_virt, 2941 virt_set_virt); 2942 object_class_property_set_description(oc, "virtualization", 2943 "Set on/off to enable/disable emulating a " 2944 "guest CPU which implements the ARM " 2945 "Virtualization Extensions"); 2946 2947 object_class_property_add_bool(oc, "highmem", virt_get_highmem, 2948 virt_set_highmem); 2949 object_class_property_set_description(oc, "highmem", 2950 "Set on/off to enable/disable using " 2951 "physical address space above 32 bits"); 2952 2953 object_class_property_add_str(oc, "gic-version", virt_get_gic_version, 2954 virt_set_gic_version); 2955 object_class_property_set_description(oc, "gic-version", 2956 "Set GIC version. " 2957 "Valid values are 2, 3, 4, host and max"); 2958 2959 object_class_property_add_str(oc, "iommu", virt_get_iommu, virt_set_iommu); 2960 object_class_property_set_description(oc, "iommu", 2961 "Set the IOMMU type. " 2962 "Valid values are none and smmuv3"); 2963 2964 object_class_property_add_bool(oc, "default-bus-bypass-iommu", 2965 virt_get_default_bus_bypass_iommu, 2966 virt_set_default_bus_bypass_iommu); 2967 object_class_property_set_description(oc, "default-bus-bypass-iommu", 2968 "Set on/off to enable/disable " 2969 "bypass_iommu for default root bus"); 2970 2971 object_class_property_add_bool(oc, "ras", virt_get_ras, 2972 virt_set_ras); 2973 object_class_property_set_description(oc, "ras", 2974 "Set on/off to enable/disable reporting host memory errors " 2975 "to a KVM guest using ACPI and guest external abort exceptions"); 2976 2977 object_class_property_add_bool(oc, "mte", virt_get_mte, virt_set_mte); 2978 object_class_property_set_description(oc, "mte", 2979 "Set on/off to enable/disable emulating a " 2980 "guest CPU which implements the ARM " 2981 "Memory Tagging Extension"); 2982 2983 object_class_property_add_bool(oc, "its", virt_get_its, 2984 virt_set_its); 2985 object_class_property_set_description(oc, "its", 2986 "Set on/off to enable/disable " 2987 "ITS instantiation"); 2988 2989 object_class_property_add_bool(oc, "dtb-randomness", 2990 virt_get_dtb_randomness, 2991 virt_set_dtb_randomness); 2992 object_class_property_set_description(oc, "dtb-randomness", 2993 "Set off to disable passing random or " 2994 "non-deterministic dtb nodes to guest"); 2995 2996 object_class_property_add_bool(oc, "dtb-kaslr-seed", 2997 virt_get_dtb_randomness, 2998 virt_set_dtb_randomness); 2999 object_class_property_set_description(oc, "dtb-kaslr-seed", 3000 "Deprecated synonym of dtb-randomness"); 3001 3002 object_class_property_add_str(oc, "x-oem-id", 3003 virt_get_oem_id, 3004 virt_set_oem_id); 3005 object_class_property_set_description(oc, "x-oem-id", 3006 "Override the default value of field OEMID " 3007 "in ACPI table header." 3008 "The string may be up to 6 bytes in size"); 3009 3010 3011 object_class_property_add_str(oc, "x-oem-table-id", 3012 virt_get_oem_table_id, 3013 virt_set_oem_table_id); 3014 object_class_property_set_description(oc, "x-oem-table-id", 3015 "Override the default value of field OEM Table ID " 3016 "in ACPI table header." 3017 "The string may be up to 8 bytes in size"); 3018 3019 } 3020 3021 static void virt_instance_init(Object *obj) 3022 { 3023 VirtMachineState *vms = VIRT_MACHINE(obj); 3024 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 3025 3026 /* EL3 is disabled by default on virt: this makes us consistent 3027 * between KVM and TCG for this board, and it also allows us to 3028 * boot UEFI blobs which assume no TrustZone support. 3029 */ 3030 vms->secure = false; 3031 3032 /* EL2 is also disabled by default, for similar reasons */ 3033 vms->virt = false; 3034 3035 /* High memory is enabled by default */ 3036 vms->highmem = true; 3037 vms->gic_version = VIRT_GIC_VERSION_NOSEL; 3038 3039 vms->highmem_ecam = !vmc->no_highmem_ecam; 3040 vms->highmem_mmio = true; 3041 vms->highmem_redists = true; 3042 3043 if (vmc->no_its) { 3044 vms->its = false; 3045 } else { 3046 /* Default allows ITS instantiation */ 3047 vms->its = true; 3048 3049 if (vmc->no_tcg_its) { 3050 vms->tcg_its = false; 3051 } else { 3052 vms->tcg_its = true; 3053 } 3054 } 3055 3056 /* Default disallows iommu instantiation */ 3057 vms->iommu = VIRT_IOMMU_NONE; 3058 3059 /* The default root bus is attached to iommu by default */ 3060 vms->default_bus_bypass_iommu = false; 3061 3062 /* Default disallows RAS instantiation */ 3063 vms->ras = false; 3064 3065 /* MTE is disabled by default. */ 3066 vms->mte = false; 3067 3068 /* Supply kaslr-seed and rng-seed by default */ 3069 vms->dtb_randomness = true; 3070 3071 vms->irqmap = a15irqmap; 3072 3073 virt_flash_create(vms); 3074 3075 vms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 3076 vms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 3077 } 3078 3079 static const TypeInfo virt_machine_info = { 3080 .name = TYPE_VIRT_MACHINE, 3081 .parent = TYPE_MACHINE, 3082 .abstract = true, 3083 .instance_size = sizeof(VirtMachineState), 3084 .class_size = sizeof(VirtMachineClass), 3085 .class_init = virt_machine_class_init, 3086 .instance_init = virt_instance_init, 3087 .interfaces = (InterfaceInfo[]) { 3088 { TYPE_HOTPLUG_HANDLER }, 3089 { } 3090 }, 3091 }; 3092 3093 static void machvirt_machine_init(void) 3094 { 3095 type_register_static(&virt_machine_info); 3096 } 3097 type_init(machvirt_machine_init); 3098 3099 static void virt_machine_7_2_options(MachineClass *mc) 3100 { 3101 } 3102 DEFINE_VIRT_MACHINE_AS_LATEST(7, 2) 3103 3104 static void virt_machine_7_1_options(MachineClass *mc) 3105 { 3106 virt_machine_7_2_options(mc); 3107 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 3108 } 3109 DEFINE_VIRT_MACHINE(7, 1) 3110 3111 static void virt_machine_7_0_options(MachineClass *mc) 3112 { 3113 virt_machine_7_1_options(mc); 3114 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 3115 } 3116 DEFINE_VIRT_MACHINE(7, 0) 3117 3118 static void virt_machine_6_2_options(MachineClass *mc) 3119 { 3120 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3121 3122 virt_machine_7_0_options(mc); 3123 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 3124 vmc->no_tcg_lpa2 = true; 3125 } 3126 DEFINE_VIRT_MACHINE(6, 2) 3127 3128 static void virt_machine_6_1_options(MachineClass *mc) 3129 { 3130 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3131 3132 virt_machine_6_2_options(mc); 3133 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 3134 mc->smp_props.prefer_sockets = true; 3135 vmc->no_cpu_topology = true; 3136 3137 /* qemu ITS was introduced with 6.2 */ 3138 vmc->no_tcg_its = true; 3139 } 3140 DEFINE_VIRT_MACHINE(6, 1) 3141 3142 static void virt_machine_6_0_options(MachineClass *mc) 3143 { 3144 virt_machine_6_1_options(mc); 3145 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 3146 } 3147 DEFINE_VIRT_MACHINE(6, 0) 3148 3149 static void virt_machine_5_2_options(MachineClass *mc) 3150 { 3151 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3152 3153 virt_machine_6_0_options(mc); 3154 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 3155 vmc->no_secure_gpio = true; 3156 } 3157 DEFINE_VIRT_MACHINE(5, 2) 3158 3159 static void virt_machine_5_1_options(MachineClass *mc) 3160 { 3161 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3162 3163 virt_machine_5_2_options(mc); 3164 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 3165 vmc->no_kvm_steal_time = true; 3166 } 3167 DEFINE_VIRT_MACHINE(5, 1) 3168 3169 static void virt_machine_5_0_options(MachineClass *mc) 3170 { 3171 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3172 3173 virt_machine_5_1_options(mc); 3174 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 3175 mc->numa_mem_supported = true; 3176 vmc->acpi_expose_flash = true; 3177 mc->auto_enable_numa_with_memdev = false; 3178 } 3179 DEFINE_VIRT_MACHINE(5, 0) 3180 3181 static void virt_machine_4_2_options(MachineClass *mc) 3182 { 3183 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3184 3185 virt_machine_5_0_options(mc); 3186 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 3187 vmc->kvm_no_adjvtime = true; 3188 } 3189 DEFINE_VIRT_MACHINE(4, 2) 3190 3191 static void virt_machine_4_1_options(MachineClass *mc) 3192 { 3193 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3194 3195 virt_machine_4_2_options(mc); 3196 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 3197 vmc->no_ged = true; 3198 mc->auto_enable_numa_with_memhp = false; 3199 } 3200 DEFINE_VIRT_MACHINE(4, 1) 3201 3202 static void virt_machine_4_0_options(MachineClass *mc) 3203 { 3204 virt_machine_4_1_options(mc); 3205 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 3206 } 3207 DEFINE_VIRT_MACHINE(4, 0) 3208 3209 static void virt_machine_3_1_options(MachineClass *mc) 3210 { 3211 virt_machine_4_0_options(mc); 3212 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 3213 } 3214 DEFINE_VIRT_MACHINE(3, 1) 3215 3216 static void virt_machine_3_0_options(MachineClass *mc) 3217 { 3218 virt_machine_3_1_options(mc); 3219 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 3220 } 3221 DEFINE_VIRT_MACHINE(3, 0) 3222 3223 static void virt_machine_2_12_options(MachineClass *mc) 3224 { 3225 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3226 3227 virt_machine_3_0_options(mc); 3228 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 3229 vmc->no_highmem_ecam = true; 3230 mc->max_cpus = 255; 3231 } 3232 DEFINE_VIRT_MACHINE(2, 12) 3233 3234 static void virt_machine_2_11_options(MachineClass *mc) 3235 { 3236 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3237 3238 virt_machine_2_12_options(mc); 3239 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 3240 vmc->smbios_old_sys_ver = true; 3241 } 3242 DEFINE_VIRT_MACHINE(2, 11) 3243 3244 static void virt_machine_2_10_options(MachineClass *mc) 3245 { 3246 virt_machine_2_11_options(mc); 3247 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 3248 /* before 2.11 we never faulted accesses to bad addresses */ 3249 mc->ignore_memory_transaction_failures = true; 3250 } 3251 DEFINE_VIRT_MACHINE(2, 10) 3252 3253 static void virt_machine_2_9_options(MachineClass *mc) 3254 { 3255 virt_machine_2_10_options(mc); 3256 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 3257 } 3258 DEFINE_VIRT_MACHINE(2, 9) 3259 3260 static void virt_machine_2_8_options(MachineClass *mc) 3261 { 3262 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3263 3264 virt_machine_2_9_options(mc); 3265 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 3266 /* For 2.8 and earlier we falsely claimed in the DT that 3267 * our timers were edge-triggered, not level-triggered. 3268 */ 3269 vmc->claim_edge_triggered_timers = true; 3270 } 3271 DEFINE_VIRT_MACHINE(2, 8) 3272 3273 static void virt_machine_2_7_options(MachineClass *mc) 3274 { 3275 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3276 3277 virt_machine_2_8_options(mc); 3278 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 3279 /* ITS was introduced with 2.8 */ 3280 vmc->no_its = true; 3281 /* Stick with 1K pages for migration compatibility */ 3282 mc->minimum_page_bits = 0; 3283 } 3284 DEFINE_VIRT_MACHINE(2, 7) 3285 3286 static void virt_machine_2_6_options(MachineClass *mc) 3287 { 3288 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3289 3290 virt_machine_2_7_options(mc); 3291 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 3292 vmc->disallow_affinity_adjustment = true; 3293 /* Disable PMU for 2.6 as PMU support was first introduced in 2.7 */ 3294 vmc->no_pmu = true; 3295 } 3296 DEFINE_VIRT_MACHINE(2, 6) 3297