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 "hw/sysbus.h" 37 #include "hw/arm/boot.h" 38 #include "hw/arm/primecell.h" 39 #include "hw/arm/virt.h" 40 #include "hw/block/flash.h" 41 #include "hw/vfio/vfio-calxeda-xgmac.h" 42 #include "hw/vfio/vfio-amd-xgbe.h" 43 #include "hw/display/ramfb.h" 44 #include "net/net.h" 45 #include "sysemu/device_tree.h" 46 #include "sysemu/numa.h" 47 #include "sysemu/runstate.h" 48 #include "sysemu/tpm.h" 49 #include "sysemu/tcg.h" 50 #include "sysemu/kvm.h" 51 #include "sysemu/hvf.h" 52 #include "sysemu/qtest.h" 53 #include "hw/loader.h" 54 #include "qapi/error.h" 55 #include "qemu/bitops.h" 56 #include "qemu/error-report.h" 57 #include "qemu/module.h" 58 #include "hw/pci-host/gpex.h" 59 #include "hw/virtio/virtio-pci.h" 60 #include "hw/core/sysbus-fdt.h" 61 #include "hw/platform-bus.h" 62 #include "hw/qdev-properties.h" 63 #include "hw/arm/fdt.h" 64 #include "hw/intc/arm_gic.h" 65 #include "hw/intc/arm_gicv3_common.h" 66 #include "hw/irq.h" 67 #include "kvm_arm.h" 68 #include "hw/firmware/smbios.h" 69 #include "qapi/visitor.h" 70 #include "qapi/qapi-visit-common.h" 71 #include "standard-headers/linux/input.h" 72 #include "hw/arm/smmuv3.h" 73 #include "hw/acpi/acpi.h" 74 #include "target/arm/internals.h" 75 #include "hw/mem/memory-device.h" 76 #include "hw/mem/pc-dimm.h" 77 #include "hw/mem/nvdimm.h" 78 #include "hw/acpi/generic_event_device.h" 79 #include "hw/virtio/virtio-mem-pci.h" 80 #include "hw/virtio/virtio-iommu.h" 81 #include "hw/char/pl011.h" 82 #include "qemu/guest-random.h" 83 84 #define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \ 85 static void virt_##major##_##minor##_class_init(ObjectClass *oc, \ 86 void *data) \ 87 { \ 88 MachineClass *mc = MACHINE_CLASS(oc); \ 89 virt_machine_##major##_##minor##_options(mc); \ 90 mc->desc = "QEMU " # major "." # minor " ARM Virtual Machine"; \ 91 if (latest) { \ 92 mc->alias = "virt"; \ 93 } \ 94 } \ 95 static const TypeInfo machvirt_##major##_##minor##_info = { \ 96 .name = MACHINE_TYPE_NAME("virt-" # major "." # minor), \ 97 .parent = TYPE_VIRT_MACHINE, \ 98 .class_init = virt_##major##_##minor##_class_init, \ 99 }; \ 100 static void machvirt_machine_##major##_##minor##_init(void) \ 101 { \ 102 type_register_static(&machvirt_##major##_##minor##_info); \ 103 } \ 104 type_init(machvirt_machine_##major##_##minor##_init); 105 106 #define DEFINE_VIRT_MACHINE_AS_LATEST(major, minor) \ 107 DEFINE_VIRT_MACHINE_LATEST(major, minor, true) 108 #define DEFINE_VIRT_MACHINE(major, minor) \ 109 DEFINE_VIRT_MACHINE_LATEST(major, minor, false) 110 111 112 /* Number of external interrupt lines to configure the GIC with */ 113 #define NUM_IRQS 256 114 115 #define PLATFORM_BUS_NUM_IRQS 64 116 117 /* Legacy RAM limit in GB (< version 4.0) */ 118 #define LEGACY_RAMLIMIT_GB 255 119 #define LEGACY_RAMLIMIT_BYTES (LEGACY_RAMLIMIT_GB * GiB) 120 121 /* Addresses and sizes of our components. 122 * 0..128MB is space for a flash device so we can run bootrom code such as UEFI. 123 * 128MB..256MB is used for miscellaneous device I/O. 124 * 256MB..1GB is reserved for possible future PCI support (ie where the 125 * PCI memory window will go if we add a PCI host controller). 126 * 1GB and up is RAM (which may happily spill over into the 127 * high memory region beyond 4GB). 128 * This represents a compromise between how much RAM can be given to 129 * a 32 bit VM and leaving space for expansion and in particular for PCI. 130 * Note that devices should generally be placed at multiples of 0x10000, 131 * to accommodate guests using 64K pages. 132 */ 133 static const MemMapEntry base_memmap[] = { 134 /* Space up to 0x8000000 is reserved for a boot ROM */ 135 [VIRT_FLASH] = { 0, 0x08000000 }, 136 [VIRT_CPUPERIPHS] = { 0x08000000, 0x00020000 }, 137 /* GIC distributor and CPU interfaces sit inside the CPU peripheral space */ 138 [VIRT_GIC_DIST] = { 0x08000000, 0x00010000 }, 139 [VIRT_GIC_CPU] = { 0x08010000, 0x00010000 }, 140 [VIRT_GIC_V2M] = { 0x08020000, 0x00001000 }, 141 [VIRT_GIC_HYP] = { 0x08030000, 0x00010000 }, 142 [VIRT_GIC_VCPU] = { 0x08040000, 0x00010000 }, 143 /* The space in between here is reserved for GICv3 CPU/vCPU/HYP */ 144 [VIRT_GIC_ITS] = { 0x08080000, 0x00020000 }, 145 /* This redistributor space allows up to 2*64kB*123 CPUs */ 146 [VIRT_GIC_REDIST] = { 0x080A0000, 0x00F60000 }, 147 [VIRT_UART] = { 0x09000000, 0x00001000 }, 148 [VIRT_RTC] = { 0x09010000, 0x00001000 }, 149 [VIRT_FW_CFG] = { 0x09020000, 0x00000018 }, 150 [VIRT_GPIO] = { 0x09030000, 0x00001000 }, 151 [VIRT_SECURE_UART] = { 0x09040000, 0x00001000 }, 152 [VIRT_SMMU] = { 0x09050000, 0x00020000 }, 153 [VIRT_PCDIMM_ACPI] = { 0x09070000, MEMORY_HOTPLUG_IO_LEN }, 154 [VIRT_ACPI_GED] = { 0x09080000, ACPI_GED_EVT_SEL_LEN }, 155 [VIRT_NVDIMM_ACPI] = { 0x09090000, NVDIMM_ACPI_IO_LEN}, 156 [VIRT_PVTIME] = { 0x090a0000, 0x00010000 }, 157 [VIRT_SECURE_GPIO] = { 0x090b0000, 0x00001000 }, 158 [VIRT_MMIO] = { 0x0a000000, 0x00000200 }, 159 /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */ 160 [VIRT_PLATFORM_BUS] = { 0x0c000000, 0x02000000 }, 161 [VIRT_SECURE_MEM] = { 0x0e000000, 0x01000000 }, 162 [VIRT_PCIE_MMIO] = { 0x10000000, 0x2eff0000 }, 163 [VIRT_PCIE_PIO] = { 0x3eff0000, 0x00010000 }, 164 [VIRT_PCIE_ECAM] = { 0x3f000000, 0x01000000 }, 165 /* Actual RAM size depends on initial RAM and device memory settings */ 166 [VIRT_MEM] = { GiB, LEGACY_RAMLIMIT_BYTES }, 167 }; 168 169 /* 170 * Highmem IO Regions: This memory map is floating, located after the RAM. 171 * Each MemMapEntry base (GPA) will be dynamically computed, depending on the 172 * top of the RAM, so that its base get the same alignment as the size, 173 * ie. a 512GiB entry will be aligned on a 512GiB boundary. If there is 174 * less than 256GiB of RAM, the floating area starts at the 256GiB mark. 175 * Note the extended_memmap is sized so that it eventually also includes the 176 * base_memmap entries (VIRT_HIGH_GIC_REDIST2 index is greater than the last 177 * index of base_memmap). 178 * 179 * The memory map for these Highmem IO Regions can be in legacy or compact 180 * layout, depending on 'compact-highmem' property. With legacy layout, the 181 * PA space for one specific region is always reserved, even if the region 182 * has been disabled or doesn't fit into the PA space. However, the PA space 183 * for the region won't be reserved in these circumstances with compact layout. 184 */ 185 static MemMapEntry extended_memmap[] = { 186 /* Additional 64 MB redist region (can contain up to 512 redistributors) */ 187 [VIRT_HIGH_GIC_REDIST2] = { 0x0, 64 * MiB }, 188 [VIRT_HIGH_PCIE_ECAM] = { 0x0, 256 * MiB }, 189 /* Second PCIe window */ 190 [VIRT_HIGH_PCIE_MMIO] = { 0x0, 512 * GiB }, 191 }; 192 193 static const int a15irqmap[] = { 194 [VIRT_UART] = 1, 195 [VIRT_RTC] = 2, 196 [VIRT_PCIE] = 3, /* ... to 6 */ 197 [VIRT_GPIO] = 7, 198 [VIRT_SECURE_UART] = 8, 199 [VIRT_ACPI_GED] = 9, 200 [VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */ 201 [VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */ 202 [VIRT_SMMU] = 74, /* ...to 74 + NUM_SMMU_IRQS - 1 */ 203 [VIRT_PLATFORM_BUS] = 112, /* ...to 112 + PLATFORM_BUS_NUM_IRQS -1 */ 204 }; 205 206 static const char *valid_cpus[] = { 207 ARM_CPU_TYPE_NAME("cortex-a7"), 208 ARM_CPU_TYPE_NAME("cortex-a15"), 209 ARM_CPU_TYPE_NAME("cortex-a35"), 210 ARM_CPU_TYPE_NAME("cortex-a53"), 211 ARM_CPU_TYPE_NAME("cortex-a55"), 212 ARM_CPU_TYPE_NAME("cortex-a57"), 213 ARM_CPU_TYPE_NAME("cortex-a72"), 214 ARM_CPU_TYPE_NAME("cortex-a76"), 215 ARM_CPU_TYPE_NAME("a64fx"), 216 ARM_CPU_TYPE_NAME("neoverse-n1"), 217 ARM_CPU_TYPE_NAME("host"), 218 ARM_CPU_TYPE_NAME("max"), 219 }; 220 221 static bool cpu_type_valid(const char *cpu) 222 { 223 int i; 224 225 for (i = 0; i < ARRAY_SIZE(valid_cpus); i++) { 226 if (strcmp(cpu, valid_cpus[i]) == 0) { 227 return true; 228 } 229 } 230 return false; 231 } 232 233 static void create_randomness(MachineState *ms, const char *node) 234 { 235 struct { 236 uint64_t kaslr; 237 uint8_t rng[32]; 238 } seed; 239 240 if (qemu_guest_getrandom(&seed, sizeof(seed), NULL)) { 241 return; 242 } 243 qemu_fdt_setprop_u64(ms->fdt, node, "kaslr-seed", seed.kaslr); 244 qemu_fdt_setprop(ms->fdt, node, "rng-seed", seed.rng, sizeof(seed.rng)); 245 } 246 247 static void create_fdt(VirtMachineState *vms) 248 { 249 MachineState *ms = MACHINE(vms); 250 int nb_numa_nodes = ms->numa_state->num_nodes; 251 void *fdt = create_device_tree(&vms->fdt_size); 252 253 if (!fdt) { 254 error_report("create_device_tree() failed"); 255 exit(1); 256 } 257 258 ms->fdt = fdt; 259 260 /* Header */ 261 qemu_fdt_setprop_string(fdt, "/", "compatible", "linux,dummy-virt"); 262 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); 263 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); 264 qemu_fdt_setprop_string(fdt, "/", "model", "linux,dummy-virt"); 265 266 /* /chosen must exist for load_dtb to fill in necessary properties later */ 267 qemu_fdt_add_subnode(fdt, "/chosen"); 268 if (vms->dtb_randomness) { 269 create_randomness(ms, "/chosen"); 270 } 271 272 if (vms->secure) { 273 qemu_fdt_add_subnode(fdt, "/secure-chosen"); 274 if (vms->dtb_randomness) { 275 create_randomness(ms, "/secure-chosen"); 276 } 277 } 278 279 /* Clock node, for the benefit of the UART. The kernel device tree 280 * binding documentation claims the PL011 node clock properties are 281 * optional but in practice if you omit them the kernel refuses to 282 * probe for the device. 283 */ 284 vms->clock_phandle = qemu_fdt_alloc_phandle(fdt); 285 qemu_fdt_add_subnode(fdt, "/apb-pclk"); 286 qemu_fdt_setprop_string(fdt, "/apb-pclk", "compatible", "fixed-clock"); 287 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "#clock-cells", 0x0); 288 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "clock-frequency", 24000000); 289 qemu_fdt_setprop_string(fdt, "/apb-pclk", "clock-output-names", 290 "clk24mhz"); 291 qemu_fdt_setprop_cell(fdt, "/apb-pclk", "phandle", vms->clock_phandle); 292 293 if (nb_numa_nodes > 0 && ms->numa_state->have_numa_distance) { 294 int size = nb_numa_nodes * nb_numa_nodes * 3 * sizeof(uint32_t); 295 uint32_t *matrix = g_malloc0(size); 296 int idx, i, j; 297 298 for (i = 0; i < nb_numa_nodes; i++) { 299 for (j = 0; j < nb_numa_nodes; j++) { 300 idx = (i * nb_numa_nodes + j) * 3; 301 matrix[idx + 0] = cpu_to_be32(i); 302 matrix[idx + 1] = cpu_to_be32(j); 303 matrix[idx + 2] = 304 cpu_to_be32(ms->numa_state->nodes[i].distance[j]); 305 } 306 } 307 308 qemu_fdt_add_subnode(fdt, "/distance-map"); 309 qemu_fdt_setprop_string(fdt, "/distance-map", "compatible", 310 "numa-distance-map-v1"); 311 qemu_fdt_setprop(fdt, "/distance-map", "distance-matrix", 312 matrix, size); 313 g_free(matrix); 314 } 315 } 316 317 static void fdt_add_timer_nodes(const VirtMachineState *vms) 318 { 319 /* On real hardware these interrupts are level-triggered. 320 * On KVM they were edge-triggered before host kernel version 4.4, 321 * and level-triggered afterwards. 322 * On emulated QEMU they are level-triggered. 323 * 324 * Getting the DTB info about them wrong is awkward for some 325 * guest kernels: 326 * pre-4.8 ignore the DT and leave the interrupt configured 327 * with whatever the GIC reset value (or the bootloader) left it at 328 * 4.8 before rc6 honour the incorrect data by programming it back 329 * into the GIC, causing problems 330 * 4.8rc6 and later ignore the DT and always write "level triggered" 331 * into the GIC 332 * 333 * For backwards-compatibility, virt-2.8 and earlier will continue 334 * to say these are edge-triggered, but later machines will report 335 * the correct information. 336 */ 337 ARMCPU *armcpu; 338 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 339 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 340 MachineState *ms = MACHINE(vms); 341 342 if (vmc->claim_edge_triggered_timers) { 343 irqflags = GIC_FDT_IRQ_FLAGS_EDGE_LO_HI; 344 } 345 346 if (vms->gic_version == VIRT_GIC_VERSION_2) { 347 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 348 GIC_FDT_IRQ_PPI_CPU_WIDTH, 349 (1 << MACHINE(vms)->smp.cpus) - 1); 350 } 351 352 qemu_fdt_add_subnode(ms->fdt, "/timer"); 353 354 armcpu = ARM_CPU(qemu_get_cpu(0)); 355 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 356 const char compat[] = "arm,armv8-timer\0arm,armv7-timer"; 357 qemu_fdt_setprop(ms->fdt, "/timer", "compatible", 358 compat, sizeof(compat)); 359 } else { 360 qemu_fdt_setprop_string(ms->fdt, "/timer", "compatible", 361 "arm,armv7-timer"); 362 } 363 qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0); 364 qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts", 365 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_S_EL1_IRQ, irqflags, 366 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL1_IRQ, irqflags, 367 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_VIRT_IRQ, irqflags, 368 GIC_FDT_IRQ_TYPE_PPI, ARCH_TIMER_NS_EL2_IRQ, irqflags); 369 } 370 371 static void fdt_add_cpu_nodes(const VirtMachineState *vms) 372 { 373 int cpu; 374 int addr_cells = 1; 375 const MachineState *ms = MACHINE(vms); 376 const VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 377 int smp_cpus = ms->smp.cpus; 378 379 /* 380 * See Linux Documentation/devicetree/bindings/arm/cpus.yaml 381 * On ARM v8 64-bit systems value should be set to 2, 382 * that corresponds to the MPIDR_EL1 register size. 383 * If MPIDR_EL1[63:32] value is equal to 0 on all CPUs 384 * in the system, #address-cells can be set to 1, since 385 * MPIDR_EL1[63:32] bits are not used for CPUs 386 * identification. 387 * 388 * Here we actually don't know whether our system is 32- or 64-bit one. 389 * The simplest way to go is to examine affinity IDs of all our CPUs. If 390 * at least one of them has Aff3 populated, we set #address-cells to 2. 391 */ 392 for (cpu = 0; cpu < smp_cpus; cpu++) { 393 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 394 395 if (armcpu->mp_affinity & ARM_AFF3_MASK) { 396 addr_cells = 2; 397 break; 398 } 399 } 400 401 qemu_fdt_add_subnode(ms->fdt, "/cpus"); 402 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#address-cells", addr_cells); 403 qemu_fdt_setprop_cell(ms->fdt, "/cpus", "#size-cells", 0x0); 404 405 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 406 char *nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 407 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(cpu)); 408 CPUState *cs = CPU(armcpu); 409 410 qemu_fdt_add_subnode(ms->fdt, nodename); 411 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "cpu"); 412 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 413 armcpu->dtb_compatible); 414 415 if (vms->psci_conduit != QEMU_PSCI_CONDUIT_DISABLED && smp_cpus > 1) { 416 qemu_fdt_setprop_string(ms->fdt, nodename, 417 "enable-method", "psci"); 418 } 419 420 if (addr_cells == 2) { 421 qemu_fdt_setprop_u64(ms->fdt, nodename, "reg", 422 armcpu->mp_affinity); 423 } else { 424 qemu_fdt_setprop_cell(ms->fdt, nodename, "reg", 425 armcpu->mp_affinity); 426 } 427 428 if (ms->possible_cpus->cpus[cs->cpu_index].props.has_node_id) { 429 qemu_fdt_setprop_cell(ms->fdt, nodename, "numa-node-id", 430 ms->possible_cpus->cpus[cs->cpu_index].props.node_id); 431 } 432 433 if (!vmc->no_cpu_topology) { 434 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", 435 qemu_fdt_alloc_phandle(ms->fdt)); 436 } 437 438 g_free(nodename); 439 } 440 441 if (!vmc->no_cpu_topology) { 442 /* 443 * Add vCPU topology description through fdt node cpu-map. 444 * 445 * See Linux Documentation/devicetree/bindings/cpu/cpu-topology.txt 446 * In a SMP system, the hierarchy of CPUs can be defined through 447 * four entities that are used to describe the layout of CPUs in 448 * the system: socket/cluster/core/thread. 449 * 450 * A socket node represents the boundary of system physical package 451 * and its child nodes must be one or more cluster nodes. A system 452 * can contain several layers of clustering within a single physical 453 * package and cluster nodes can be contained in parent cluster nodes. 454 * 455 * Note: currently we only support one layer of clustering within 456 * each physical package. 457 */ 458 qemu_fdt_add_subnode(ms->fdt, "/cpus/cpu-map"); 459 460 for (cpu = smp_cpus - 1; cpu >= 0; cpu--) { 461 char *cpu_path = g_strdup_printf("/cpus/cpu@%d", cpu); 462 char *map_path; 463 464 if (ms->smp.threads > 1) { 465 map_path = g_strdup_printf( 466 "/cpus/cpu-map/socket%d/cluster%d/core%d/thread%d", 467 cpu / (ms->smp.clusters * ms->smp.cores * ms->smp.threads), 468 (cpu / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters, 469 (cpu / ms->smp.threads) % ms->smp.cores, 470 cpu % ms->smp.threads); 471 } else { 472 map_path = g_strdup_printf( 473 "/cpus/cpu-map/socket%d/cluster%d/core%d", 474 cpu / (ms->smp.clusters * ms->smp.cores), 475 (cpu / ms->smp.cores) % ms->smp.clusters, 476 cpu % ms->smp.cores); 477 } 478 qemu_fdt_add_path(ms->fdt, map_path); 479 qemu_fdt_setprop_phandle(ms->fdt, map_path, "cpu", cpu_path); 480 481 g_free(map_path); 482 g_free(cpu_path); 483 } 484 } 485 } 486 487 static void fdt_add_its_gic_node(VirtMachineState *vms) 488 { 489 char *nodename; 490 MachineState *ms = MACHINE(vms); 491 492 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 493 nodename = g_strdup_printf("/intc/its@%" PRIx64, 494 vms->memmap[VIRT_GIC_ITS].base); 495 qemu_fdt_add_subnode(ms->fdt, nodename); 496 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 497 "arm,gic-v3-its"); 498 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 499 qemu_fdt_setprop_cell(ms->fdt, nodename, "#msi-cells", 1); 500 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 501 2, vms->memmap[VIRT_GIC_ITS].base, 502 2, vms->memmap[VIRT_GIC_ITS].size); 503 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 504 g_free(nodename); 505 } 506 507 static void fdt_add_v2m_gic_node(VirtMachineState *vms) 508 { 509 MachineState *ms = MACHINE(vms); 510 char *nodename; 511 512 nodename = g_strdup_printf("/intc/v2m@%" PRIx64, 513 vms->memmap[VIRT_GIC_V2M].base); 514 vms->msi_phandle = qemu_fdt_alloc_phandle(ms->fdt); 515 qemu_fdt_add_subnode(ms->fdt, nodename); 516 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 517 "arm,gic-v2m-frame"); 518 qemu_fdt_setprop(ms->fdt, nodename, "msi-controller", NULL, 0); 519 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 520 2, vms->memmap[VIRT_GIC_V2M].base, 521 2, vms->memmap[VIRT_GIC_V2M].size); 522 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->msi_phandle); 523 g_free(nodename); 524 } 525 526 static void fdt_add_gic_node(VirtMachineState *vms) 527 { 528 MachineState *ms = MACHINE(vms); 529 char *nodename; 530 531 vms->gic_phandle = qemu_fdt_alloc_phandle(ms->fdt); 532 qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", vms->gic_phandle); 533 534 nodename = g_strdup_printf("/intc@%" PRIx64, 535 vms->memmap[VIRT_GIC_DIST].base); 536 qemu_fdt_add_subnode(ms->fdt, nodename); 537 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3); 538 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); 539 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2); 540 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2); 541 qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0); 542 if (vms->gic_version != VIRT_GIC_VERSION_2) { 543 int nb_redist_regions = virt_gicv3_redist_region_count(vms); 544 545 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 546 "arm,gic-v3"); 547 548 qemu_fdt_setprop_cell(ms->fdt, nodename, 549 "#redistributor-regions", nb_redist_regions); 550 551 if (nb_redist_regions == 1) { 552 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 553 2, vms->memmap[VIRT_GIC_DIST].base, 554 2, vms->memmap[VIRT_GIC_DIST].size, 555 2, vms->memmap[VIRT_GIC_REDIST].base, 556 2, vms->memmap[VIRT_GIC_REDIST].size); 557 } else { 558 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 559 2, vms->memmap[VIRT_GIC_DIST].base, 560 2, vms->memmap[VIRT_GIC_DIST].size, 561 2, vms->memmap[VIRT_GIC_REDIST].base, 562 2, vms->memmap[VIRT_GIC_REDIST].size, 563 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].base, 564 2, vms->memmap[VIRT_HIGH_GIC_REDIST2].size); 565 } 566 567 if (vms->virt) { 568 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 569 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 570 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 571 } 572 } else { 573 /* 'cortex-a15-gic' means 'GIC v2' */ 574 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", 575 "arm,cortex-a15-gic"); 576 if (!vms->virt) { 577 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 578 2, vms->memmap[VIRT_GIC_DIST].base, 579 2, vms->memmap[VIRT_GIC_DIST].size, 580 2, vms->memmap[VIRT_GIC_CPU].base, 581 2, vms->memmap[VIRT_GIC_CPU].size); 582 } else { 583 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 584 2, vms->memmap[VIRT_GIC_DIST].base, 585 2, vms->memmap[VIRT_GIC_DIST].size, 586 2, vms->memmap[VIRT_GIC_CPU].base, 587 2, vms->memmap[VIRT_GIC_CPU].size, 588 2, vms->memmap[VIRT_GIC_HYP].base, 589 2, vms->memmap[VIRT_GIC_HYP].size, 590 2, vms->memmap[VIRT_GIC_VCPU].base, 591 2, vms->memmap[VIRT_GIC_VCPU].size); 592 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 593 GIC_FDT_IRQ_TYPE_PPI, ARCH_GIC_MAINT_IRQ, 594 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 595 } 596 } 597 598 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", vms->gic_phandle); 599 g_free(nodename); 600 } 601 602 static void fdt_add_pmu_nodes(const VirtMachineState *vms) 603 { 604 ARMCPU *armcpu = ARM_CPU(first_cpu); 605 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 606 MachineState *ms = MACHINE(vms); 607 608 if (!arm_feature(&armcpu->env, ARM_FEATURE_PMU)) { 609 assert(!object_property_get_bool(OBJECT(armcpu), "pmu", NULL)); 610 return; 611 } 612 613 if (vms->gic_version == VIRT_GIC_VERSION_2) { 614 irqflags = deposit32(irqflags, GIC_FDT_IRQ_PPI_CPU_START, 615 GIC_FDT_IRQ_PPI_CPU_WIDTH, 616 (1 << MACHINE(vms)->smp.cpus) - 1); 617 } 618 619 qemu_fdt_add_subnode(ms->fdt, "/pmu"); 620 if (arm_feature(&armcpu->env, ARM_FEATURE_V8)) { 621 const char compat[] = "arm,armv8-pmuv3"; 622 qemu_fdt_setprop(ms->fdt, "/pmu", "compatible", 623 compat, sizeof(compat)); 624 qemu_fdt_setprop_cells(ms->fdt, "/pmu", "interrupts", 625 GIC_FDT_IRQ_TYPE_PPI, VIRTUAL_PMU_IRQ, irqflags); 626 } 627 } 628 629 static inline DeviceState *create_acpi_ged(VirtMachineState *vms) 630 { 631 DeviceState *dev; 632 MachineState *ms = MACHINE(vms); 633 int irq = vms->irqmap[VIRT_ACPI_GED]; 634 uint32_t event = ACPI_GED_PWR_DOWN_EVT; 635 636 if (ms->ram_slots) { 637 event |= ACPI_GED_MEM_HOTPLUG_EVT; 638 } 639 640 if (ms->nvdimms_state->is_enabled) { 641 event |= ACPI_GED_NVDIMM_HOTPLUG_EVT; 642 } 643 644 dev = qdev_new(TYPE_ACPI_GED); 645 qdev_prop_set_uint32(dev, "ged-event", event); 646 647 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_ACPI_GED].base); 648 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, vms->memmap[VIRT_PCDIMM_ACPI].base); 649 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(vms->gic, irq)); 650 651 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 652 653 return dev; 654 } 655 656 static void create_its(VirtMachineState *vms) 657 { 658 const char *itsclass = its_class_name(); 659 DeviceState *dev; 660 661 if (!strcmp(itsclass, "arm-gicv3-its")) { 662 if (!vms->tcg_its) { 663 itsclass = NULL; 664 } 665 } 666 667 if (!itsclass) { 668 /* Do nothing if not supported */ 669 return; 670 } 671 672 dev = qdev_new(itsclass); 673 674 object_property_set_link(OBJECT(dev), "parent-gicv3", OBJECT(vms->gic), 675 &error_abort); 676 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 677 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_ITS].base); 678 679 fdt_add_its_gic_node(vms); 680 vms->msi_controller = VIRT_MSI_CTRL_ITS; 681 } 682 683 static void create_v2m(VirtMachineState *vms) 684 { 685 int i; 686 int irq = vms->irqmap[VIRT_GIC_V2M]; 687 DeviceState *dev; 688 689 dev = qdev_new("arm-gicv2m"); 690 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, vms->memmap[VIRT_GIC_V2M].base); 691 qdev_prop_set_uint32(dev, "base-spi", irq); 692 qdev_prop_set_uint32(dev, "num-spi", NUM_GICV2M_SPIS); 693 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 694 695 for (i = 0; i < NUM_GICV2M_SPIS; i++) { 696 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 697 qdev_get_gpio_in(vms->gic, irq + i)); 698 } 699 700 fdt_add_v2m_gic_node(vms); 701 vms->msi_controller = VIRT_MSI_CTRL_GICV2M; 702 } 703 704 static void create_gic(VirtMachineState *vms, MemoryRegion *mem) 705 { 706 MachineState *ms = MACHINE(vms); 707 /* We create a standalone GIC */ 708 SysBusDevice *gicbusdev; 709 const char *gictype; 710 int i; 711 unsigned int smp_cpus = ms->smp.cpus; 712 uint32_t nb_redist_regions = 0; 713 int revision; 714 715 if (vms->gic_version == VIRT_GIC_VERSION_2) { 716 gictype = gic_class_name(); 717 } else { 718 gictype = gicv3_class_name(); 719 } 720 721 switch (vms->gic_version) { 722 case VIRT_GIC_VERSION_2: 723 revision = 2; 724 break; 725 case VIRT_GIC_VERSION_3: 726 revision = 3; 727 break; 728 case VIRT_GIC_VERSION_4: 729 revision = 4; 730 break; 731 default: 732 g_assert_not_reached(); 733 } 734 vms->gic = qdev_new(gictype); 735 qdev_prop_set_uint32(vms->gic, "revision", revision); 736 qdev_prop_set_uint32(vms->gic, "num-cpu", smp_cpus); 737 /* Note that the num-irq property counts both internal and external 738 * interrupts; there are always 32 of the former (mandated by GIC spec). 739 */ 740 qdev_prop_set_uint32(vms->gic, "num-irq", NUM_IRQS + 32); 741 if (!kvm_irqchip_in_kernel()) { 742 qdev_prop_set_bit(vms->gic, "has-security-extensions", vms->secure); 743 } 744 745 if (vms->gic_version != VIRT_GIC_VERSION_2) { 746 uint32_t redist0_capacity = virt_redist_capacity(vms, VIRT_GIC_REDIST); 747 uint32_t redist0_count = MIN(smp_cpus, redist0_capacity); 748 749 nb_redist_regions = virt_gicv3_redist_region_count(vms); 750 751 qdev_prop_set_uint32(vms->gic, "len-redist-region-count", 752 nb_redist_regions); 753 qdev_prop_set_uint32(vms->gic, "redist-region-count[0]", redist0_count); 754 755 if (!kvm_irqchip_in_kernel()) { 756 if (vms->tcg_its) { 757 object_property_set_link(OBJECT(vms->gic), "sysmem", 758 OBJECT(mem), &error_fatal); 759 qdev_prop_set_bit(vms->gic, "has-lpi", true); 760 } 761 } 762 763 if (nb_redist_regions == 2) { 764 uint32_t redist1_capacity = 765 virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 766 767 qdev_prop_set_uint32(vms->gic, "redist-region-count[1]", 768 MIN(smp_cpus - redist0_count, redist1_capacity)); 769 } 770 } else { 771 if (!kvm_irqchip_in_kernel()) { 772 qdev_prop_set_bit(vms->gic, "has-virtualization-extensions", 773 vms->virt); 774 } 775 } 776 gicbusdev = SYS_BUS_DEVICE(vms->gic); 777 sysbus_realize_and_unref(gicbusdev, &error_fatal); 778 sysbus_mmio_map(gicbusdev, 0, vms->memmap[VIRT_GIC_DIST].base); 779 if (vms->gic_version != VIRT_GIC_VERSION_2) { 780 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_REDIST].base); 781 if (nb_redist_regions == 2) { 782 sysbus_mmio_map(gicbusdev, 2, 783 vms->memmap[VIRT_HIGH_GIC_REDIST2].base); 784 } 785 } else { 786 sysbus_mmio_map(gicbusdev, 1, vms->memmap[VIRT_GIC_CPU].base); 787 if (vms->virt) { 788 sysbus_mmio_map(gicbusdev, 2, vms->memmap[VIRT_GIC_HYP].base); 789 sysbus_mmio_map(gicbusdev, 3, vms->memmap[VIRT_GIC_VCPU].base); 790 } 791 } 792 793 /* Wire the outputs from each CPU's generic timer and the GICv3 794 * maintenance interrupt signal to the appropriate GIC PPI inputs, 795 * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs. 796 */ 797 for (i = 0; i < smp_cpus; i++) { 798 DeviceState *cpudev = DEVICE(qemu_get_cpu(i)); 799 int ppibase = NUM_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS; 800 int irq; 801 /* Mapping from the output timer irq lines from the CPU to the 802 * GIC PPI inputs we use for the virt board. 803 */ 804 const int timer_irq[] = { 805 [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ, 806 [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ, 807 [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ, 808 [GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ, 809 }; 810 811 for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) { 812 qdev_connect_gpio_out(cpudev, irq, 813 qdev_get_gpio_in(vms->gic, 814 ppibase + timer_irq[irq])); 815 } 816 817 if (vms->gic_version != VIRT_GIC_VERSION_2) { 818 qemu_irq irq = qdev_get_gpio_in(vms->gic, 819 ppibase + ARCH_GIC_MAINT_IRQ); 820 qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt", 821 0, irq); 822 } else if (vms->virt) { 823 qemu_irq irq = qdev_get_gpio_in(vms->gic, 824 ppibase + ARCH_GIC_MAINT_IRQ); 825 sysbus_connect_irq(gicbusdev, i + 4 * smp_cpus, irq); 826 } 827 828 qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0, 829 qdev_get_gpio_in(vms->gic, ppibase 830 + VIRTUAL_PMU_IRQ)); 831 832 sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ)); 833 sysbus_connect_irq(gicbusdev, i + smp_cpus, 834 qdev_get_gpio_in(cpudev, ARM_CPU_FIQ)); 835 sysbus_connect_irq(gicbusdev, i + 2 * smp_cpus, 836 qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ)); 837 sysbus_connect_irq(gicbusdev, i + 3 * smp_cpus, 838 qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ)); 839 } 840 841 fdt_add_gic_node(vms); 842 843 if (vms->gic_version != VIRT_GIC_VERSION_2 && vms->its) { 844 create_its(vms); 845 } else if (vms->gic_version == VIRT_GIC_VERSION_2) { 846 create_v2m(vms); 847 } 848 } 849 850 static void create_uart(const VirtMachineState *vms, int uart, 851 MemoryRegion *mem, Chardev *chr) 852 { 853 char *nodename; 854 hwaddr base = vms->memmap[uart].base; 855 hwaddr size = vms->memmap[uart].size; 856 int irq = vms->irqmap[uart]; 857 const char compat[] = "arm,pl011\0arm,primecell"; 858 const char clocknames[] = "uartclk\0apb_pclk"; 859 DeviceState *dev = qdev_new(TYPE_PL011); 860 SysBusDevice *s = SYS_BUS_DEVICE(dev); 861 MachineState *ms = MACHINE(vms); 862 863 qdev_prop_set_chr(dev, "chardev", chr); 864 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 865 memory_region_add_subregion(mem, base, 866 sysbus_mmio_get_region(s, 0)); 867 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 868 869 nodename = g_strdup_printf("/pl011@%" PRIx64, base); 870 qemu_fdt_add_subnode(ms->fdt, nodename); 871 /* Note that we can't use setprop_string because of the embedded NUL */ 872 qemu_fdt_setprop(ms->fdt, nodename, "compatible", 873 compat, sizeof(compat)); 874 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 875 2, base, 2, size); 876 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 877 GIC_FDT_IRQ_TYPE_SPI, irq, 878 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 879 qemu_fdt_setprop_cells(ms->fdt, nodename, "clocks", 880 vms->clock_phandle, vms->clock_phandle); 881 qemu_fdt_setprop(ms->fdt, nodename, "clock-names", 882 clocknames, sizeof(clocknames)); 883 884 if (uart == VIRT_UART) { 885 qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename); 886 } else { 887 /* Mark as not usable by the normal world */ 888 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 889 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 890 891 qemu_fdt_setprop_string(ms->fdt, "/secure-chosen", "stdout-path", 892 nodename); 893 } 894 895 g_free(nodename); 896 } 897 898 static void create_rtc(const VirtMachineState *vms) 899 { 900 char *nodename; 901 hwaddr base = vms->memmap[VIRT_RTC].base; 902 hwaddr size = vms->memmap[VIRT_RTC].size; 903 int irq = vms->irqmap[VIRT_RTC]; 904 const char compat[] = "arm,pl031\0arm,primecell"; 905 MachineState *ms = MACHINE(vms); 906 907 sysbus_create_simple("pl031", base, qdev_get_gpio_in(vms->gic, irq)); 908 909 nodename = g_strdup_printf("/pl031@%" PRIx64, base); 910 qemu_fdt_add_subnode(ms->fdt, nodename); 911 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 912 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 913 2, base, 2, size); 914 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 915 GIC_FDT_IRQ_TYPE_SPI, irq, 916 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 917 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 918 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 919 g_free(nodename); 920 } 921 922 static DeviceState *gpio_key_dev; 923 static void virt_powerdown_req(Notifier *n, void *opaque) 924 { 925 VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier); 926 927 if (s->acpi_dev) { 928 acpi_send_event(s->acpi_dev, ACPI_POWER_DOWN_STATUS); 929 } else { 930 /* use gpio Pin 3 for power button event */ 931 qemu_set_irq(qdev_get_gpio_in(gpio_key_dev, 0), 1); 932 } 933 } 934 935 static void create_gpio_keys(char *fdt, DeviceState *pl061_dev, 936 uint32_t phandle) 937 { 938 gpio_key_dev = sysbus_create_simple("gpio-key", -1, 939 qdev_get_gpio_in(pl061_dev, 3)); 940 941 qemu_fdt_add_subnode(fdt, "/gpio-keys"); 942 qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys"); 943 944 qemu_fdt_add_subnode(fdt, "/gpio-keys/poweroff"); 945 qemu_fdt_setprop_string(fdt, "/gpio-keys/poweroff", 946 "label", "GPIO Key Poweroff"); 947 qemu_fdt_setprop_cell(fdt, "/gpio-keys/poweroff", "linux,code", 948 KEY_POWER); 949 qemu_fdt_setprop_cells(fdt, "/gpio-keys/poweroff", 950 "gpios", phandle, 3, 0); 951 } 952 953 #define SECURE_GPIO_POWEROFF 0 954 #define SECURE_GPIO_RESET 1 955 956 static void create_secure_gpio_pwr(char *fdt, DeviceState *pl061_dev, 957 uint32_t phandle) 958 { 959 DeviceState *gpio_pwr_dev; 960 961 /* gpio-pwr */ 962 gpio_pwr_dev = sysbus_create_simple("gpio-pwr", -1, NULL); 963 964 /* connect secure pl061 to gpio-pwr */ 965 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_RESET, 966 qdev_get_gpio_in_named(gpio_pwr_dev, "reset", 0)); 967 qdev_connect_gpio_out(pl061_dev, SECURE_GPIO_POWEROFF, 968 qdev_get_gpio_in_named(gpio_pwr_dev, "shutdown", 0)); 969 970 qemu_fdt_add_subnode(fdt, "/gpio-poweroff"); 971 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "compatible", 972 "gpio-poweroff"); 973 qemu_fdt_setprop_cells(fdt, "/gpio-poweroff", 974 "gpios", phandle, SECURE_GPIO_POWEROFF, 0); 975 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "status", "disabled"); 976 qemu_fdt_setprop_string(fdt, "/gpio-poweroff", "secure-status", 977 "okay"); 978 979 qemu_fdt_add_subnode(fdt, "/gpio-restart"); 980 qemu_fdt_setprop_string(fdt, "/gpio-restart", "compatible", 981 "gpio-restart"); 982 qemu_fdt_setprop_cells(fdt, "/gpio-restart", 983 "gpios", phandle, SECURE_GPIO_RESET, 0); 984 qemu_fdt_setprop_string(fdt, "/gpio-restart", "status", "disabled"); 985 qemu_fdt_setprop_string(fdt, "/gpio-restart", "secure-status", 986 "okay"); 987 } 988 989 static void create_gpio_devices(const VirtMachineState *vms, int gpio, 990 MemoryRegion *mem) 991 { 992 char *nodename; 993 DeviceState *pl061_dev; 994 hwaddr base = vms->memmap[gpio].base; 995 hwaddr size = vms->memmap[gpio].size; 996 int irq = vms->irqmap[gpio]; 997 const char compat[] = "arm,pl061\0arm,primecell"; 998 SysBusDevice *s; 999 MachineState *ms = MACHINE(vms); 1000 1001 pl061_dev = qdev_new("pl061"); 1002 /* Pull lines down to 0 if not driven by the PL061 */ 1003 qdev_prop_set_uint32(pl061_dev, "pullups", 0); 1004 qdev_prop_set_uint32(pl061_dev, "pulldowns", 0xff); 1005 s = SYS_BUS_DEVICE(pl061_dev); 1006 sysbus_realize_and_unref(s, &error_fatal); 1007 memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); 1008 sysbus_connect_irq(s, 0, qdev_get_gpio_in(vms->gic, irq)); 1009 1010 uint32_t phandle = qemu_fdt_alloc_phandle(ms->fdt); 1011 nodename = g_strdup_printf("/pl061@%" PRIx64, base); 1012 qemu_fdt_add_subnode(ms->fdt, nodename); 1013 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1014 2, base, 2, size); 1015 qemu_fdt_setprop(ms->fdt, nodename, "compatible", compat, sizeof(compat)); 1016 qemu_fdt_setprop_cell(ms->fdt, nodename, "#gpio-cells", 2); 1017 qemu_fdt_setprop(ms->fdt, nodename, "gpio-controller", NULL, 0); 1018 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1019 GIC_FDT_IRQ_TYPE_SPI, irq, 1020 GIC_FDT_IRQ_FLAGS_LEVEL_HI); 1021 qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle); 1022 qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk"); 1023 qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle); 1024 1025 if (gpio != VIRT_GPIO) { 1026 /* Mark as not usable by the normal world */ 1027 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1028 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1029 } 1030 g_free(nodename); 1031 1032 /* Child gpio devices */ 1033 if (gpio == VIRT_GPIO) { 1034 create_gpio_keys(ms->fdt, pl061_dev, phandle); 1035 } else { 1036 create_secure_gpio_pwr(ms->fdt, pl061_dev, phandle); 1037 } 1038 } 1039 1040 static void create_virtio_devices(const VirtMachineState *vms) 1041 { 1042 int i; 1043 hwaddr size = vms->memmap[VIRT_MMIO].size; 1044 MachineState *ms = MACHINE(vms); 1045 1046 /* We create the transports in forwards order. Since qbus_realize() 1047 * prepends (not appends) new child buses, the incrementing loop below will 1048 * create a list of virtio-mmio buses with decreasing base addresses. 1049 * 1050 * When a -device option is processed from the command line, 1051 * qbus_find_recursive() picks the next free virtio-mmio bus in forwards 1052 * order. The upshot is that -device options in increasing command line 1053 * order are mapped to virtio-mmio buses with decreasing base addresses. 1054 * 1055 * When this code was originally written, that arrangement ensured that the 1056 * guest Linux kernel would give the lowest "name" (/dev/vda, eth0, etc) to 1057 * the first -device on the command line. (The end-to-end order is a 1058 * function of this loop, qbus_realize(), qbus_find_recursive(), and the 1059 * guest kernel's name-to-address assignment strategy.) 1060 * 1061 * Meanwhile, the kernel's traversal seems to have been reversed; see eg. 1062 * the message, if not necessarily the code, of commit 70161ff336. 1063 * Therefore the loop now establishes the inverse of the original intent. 1064 * 1065 * Unfortunately, we can't counteract the kernel change by reversing the 1066 * loop; it would break existing command lines. 1067 * 1068 * In any case, the kernel makes no guarantee about the stability of 1069 * enumeration order of virtio devices (as demonstrated by it changing 1070 * between kernel versions). For reliable and stable identification 1071 * of disks users must use UUIDs or similar mechanisms. 1072 */ 1073 for (i = 0; i < NUM_VIRTIO_TRANSPORTS; i++) { 1074 int irq = vms->irqmap[VIRT_MMIO] + i; 1075 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1076 1077 sysbus_create_simple("virtio-mmio", base, 1078 qdev_get_gpio_in(vms->gic, irq)); 1079 } 1080 1081 /* We add dtb nodes in reverse order so that they appear in the finished 1082 * device tree lowest address first. 1083 * 1084 * Note that this mapping is independent of the loop above. The previous 1085 * loop influences virtio device to virtio transport assignment, whereas 1086 * this loop controls how virtio transports are laid out in the dtb. 1087 */ 1088 for (i = NUM_VIRTIO_TRANSPORTS - 1; i >= 0; i--) { 1089 char *nodename; 1090 int irq = vms->irqmap[VIRT_MMIO] + i; 1091 hwaddr base = vms->memmap[VIRT_MMIO].base + i * size; 1092 1093 nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, base); 1094 qemu_fdt_add_subnode(ms->fdt, nodename); 1095 qemu_fdt_setprop_string(ms->fdt, nodename, 1096 "compatible", "virtio,mmio"); 1097 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1098 2, base, 2, size); 1099 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupts", 1100 GIC_FDT_IRQ_TYPE_SPI, irq, 1101 GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1102 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1103 g_free(nodename); 1104 } 1105 } 1106 1107 #define VIRT_FLASH_SECTOR_SIZE (256 * KiB) 1108 1109 static PFlashCFI01 *virt_flash_create1(VirtMachineState *vms, 1110 const char *name, 1111 const char *alias_prop_name) 1112 { 1113 /* 1114 * Create a single flash device. We use the same parameters as 1115 * the flash devices on the Versatile Express board. 1116 */ 1117 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01); 1118 1119 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE); 1120 qdev_prop_set_uint8(dev, "width", 4); 1121 qdev_prop_set_uint8(dev, "device-width", 2); 1122 qdev_prop_set_bit(dev, "big-endian", false); 1123 qdev_prop_set_uint16(dev, "id0", 0x89); 1124 qdev_prop_set_uint16(dev, "id1", 0x18); 1125 qdev_prop_set_uint16(dev, "id2", 0x00); 1126 qdev_prop_set_uint16(dev, "id3", 0x00); 1127 qdev_prop_set_string(dev, "name", name); 1128 object_property_add_child(OBJECT(vms), name, OBJECT(dev)); 1129 object_property_add_alias(OBJECT(vms), alias_prop_name, 1130 OBJECT(dev), "drive"); 1131 return PFLASH_CFI01(dev); 1132 } 1133 1134 static void virt_flash_create(VirtMachineState *vms) 1135 { 1136 vms->flash[0] = virt_flash_create1(vms, "virt.flash0", "pflash0"); 1137 vms->flash[1] = virt_flash_create1(vms, "virt.flash1", "pflash1"); 1138 } 1139 1140 static void virt_flash_map1(PFlashCFI01 *flash, 1141 hwaddr base, hwaddr size, 1142 MemoryRegion *sysmem) 1143 { 1144 DeviceState *dev = DEVICE(flash); 1145 1146 assert(QEMU_IS_ALIGNED(size, VIRT_FLASH_SECTOR_SIZE)); 1147 assert(size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX); 1148 qdev_prop_set_uint32(dev, "num-blocks", size / VIRT_FLASH_SECTOR_SIZE); 1149 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1150 1151 memory_region_add_subregion(sysmem, base, 1152 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1153 0)); 1154 } 1155 1156 static void virt_flash_map(VirtMachineState *vms, 1157 MemoryRegion *sysmem, 1158 MemoryRegion *secure_sysmem) 1159 { 1160 /* 1161 * Map two flash devices to fill the VIRT_FLASH space in the memmap. 1162 * sysmem is the system memory space. secure_sysmem is the secure view 1163 * of the system, and the first flash device should be made visible only 1164 * there. The second flash device is visible to both secure and nonsecure. 1165 * If sysmem == secure_sysmem this means there is no separate Secure 1166 * address space and both flash devices are generally visible. 1167 */ 1168 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1169 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1170 1171 virt_flash_map1(vms->flash[0], flashbase, flashsize, 1172 secure_sysmem); 1173 virt_flash_map1(vms->flash[1], flashbase + flashsize, flashsize, 1174 sysmem); 1175 } 1176 1177 static void virt_flash_fdt(VirtMachineState *vms, 1178 MemoryRegion *sysmem, 1179 MemoryRegion *secure_sysmem) 1180 { 1181 hwaddr flashsize = vms->memmap[VIRT_FLASH].size / 2; 1182 hwaddr flashbase = vms->memmap[VIRT_FLASH].base; 1183 MachineState *ms = MACHINE(vms); 1184 char *nodename; 1185 1186 if (sysmem == secure_sysmem) { 1187 /* Report both flash devices as a single node in the DT */ 1188 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase); 1189 qemu_fdt_add_subnode(ms->fdt, nodename); 1190 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1191 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1192 2, flashbase, 2, flashsize, 1193 2, flashbase + flashsize, 2, flashsize); 1194 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1195 g_free(nodename); 1196 } else { 1197 /* 1198 * Report the devices as separate nodes so we can mark one as 1199 * only visible to the secure world. 1200 */ 1201 nodename = g_strdup_printf("/secflash@%" PRIx64, flashbase); 1202 qemu_fdt_add_subnode(ms->fdt, nodename); 1203 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1204 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1205 2, flashbase, 2, flashsize); 1206 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1207 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1208 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1209 g_free(nodename); 1210 1211 nodename = g_strdup_printf("/flash@%" PRIx64, flashbase + flashsize); 1212 qemu_fdt_add_subnode(ms->fdt, nodename); 1213 qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "cfi-flash"); 1214 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1215 2, flashbase + flashsize, 2, flashsize); 1216 qemu_fdt_setprop_cell(ms->fdt, nodename, "bank-width", 4); 1217 g_free(nodename); 1218 } 1219 } 1220 1221 static bool virt_firmware_init(VirtMachineState *vms, 1222 MemoryRegion *sysmem, 1223 MemoryRegion *secure_sysmem) 1224 { 1225 int i; 1226 const char *bios_name; 1227 BlockBackend *pflash_blk0; 1228 1229 /* Map legacy -drive if=pflash to machine properties */ 1230 for (i = 0; i < ARRAY_SIZE(vms->flash); i++) { 1231 pflash_cfi01_legacy_drive(vms->flash[i], 1232 drive_get(IF_PFLASH, 0, i)); 1233 } 1234 1235 virt_flash_map(vms, sysmem, secure_sysmem); 1236 1237 pflash_blk0 = pflash_cfi01_get_blk(vms->flash[0]); 1238 1239 bios_name = MACHINE(vms)->firmware; 1240 if (bios_name) { 1241 char *fname; 1242 MemoryRegion *mr; 1243 int image_size; 1244 1245 if (pflash_blk0) { 1246 error_report("The contents of the first flash device may be " 1247 "specified with -bios or with -drive if=pflash... " 1248 "but you cannot use both options at once"); 1249 exit(1); 1250 } 1251 1252 /* Fall back to -bios */ 1253 1254 fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 1255 if (!fname) { 1256 error_report("Could not find ROM image '%s'", bios_name); 1257 exit(1); 1258 } 1259 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(vms->flash[0]), 0); 1260 image_size = load_image_mr(fname, mr); 1261 g_free(fname); 1262 if (image_size < 0) { 1263 error_report("Could not load ROM image '%s'", bios_name); 1264 exit(1); 1265 } 1266 } 1267 1268 return pflash_blk0 || bios_name; 1269 } 1270 1271 static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) 1272 { 1273 MachineState *ms = MACHINE(vms); 1274 hwaddr base = vms->memmap[VIRT_FW_CFG].base; 1275 hwaddr size = vms->memmap[VIRT_FW_CFG].size; 1276 FWCfgState *fw_cfg; 1277 char *nodename; 1278 1279 fw_cfg = fw_cfg_init_mem_wide(base + 8, base, 8, base + 16, as); 1280 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)ms->smp.cpus); 1281 1282 nodename = g_strdup_printf("/fw-cfg@%" PRIx64, base); 1283 qemu_fdt_add_subnode(ms->fdt, nodename); 1284 qemu_fdt_setprop_string(ms->fdt, nodename, 1285 "compatible", "qemu,fw-cfg-mmio"); 1286 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1287 2, base, 2, size); 1288 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1289 g_free(nodename); 1290 return fw_cfg; 1291 } 1292 1293 static void create_pcie_irq_map(const MachineState *ms, 1294 uint32_t gic_phandle, 1295 int first_irq, const char *nodename) 1296 { 1297 int devfn, pin; 1298 uint32_t full_irq_map[4 * 4 * 10] = { 0 }; 1299 uint32_t *irq_map = full_irq_map; 1300 1301 for (devfn = 0; devfn <= 0x18; devfn += 0x8) { 1302 for (pin = 0; pin < 4; pin++) { 1303 int irq_type = GIC_FDT_IRQ_TYPE_SPI; 1304 int irq_nr = first_irq + ((pin + PCI_SLOT(devfn)) % PCI_NUM_PINS); 1305 int irq_level = GIC_FDT_IRQ_FLAGS_LEVEL_HI; 1306 int i; 1307 1308 uint32_t map[] = { 1309 devfn << 8, 0, 0, /* devfn */ 1310 pin + 1, /* PCI pin */ 1311 gic_phandle, 0, 0, irq_type, irq_nr, irq_level }; /* GIC irq */ 1312 1313 /* Convert map to big endian */ 1314 for (i = 0; i < 10; i++) { 1315 irq_map[i] = cpu_to_be32(map[i]); 1316 } 1317 irq_map += 10; 1318 } 1319 } 1320 1321 qemu_fdt_setprop(ms->fdt, nodename, "interrupt-map", 1322 full_irq_map, sizeof(full_irq_map)); 1323 1324 qemu_fdt_setprop_cells(ms->fdt, nodename, "interrupt-map-mask", 1325 cpu_to_be16(PCI_DEVFN(3, 0)), /* Slot 3 */ 1326 0, 0, 1327 0x7 /* PCI irq */); 1328 } 1329 1330 static void create_smmu(const VirtMachineState *vms, 1331 PCIBus *bus) 1332 { 1333 char *node; 1334 const char compat[] = "arm,smmu-v3"; 1335 int irq = vms->irqmap[VIRT_SMMU]; 1336 int i; 1337 hwaddr base = vms->memmap[VIRT_SMMU].base; 1338 hwaddr size = vms->memmap[VIRT_SMMU].size; 1339 const char irq_names[] = "eventq\0priq\0cmdq-sync\0gerror"; 1340 DeviceState *dev; 1341 MachineState *ms = MACHINE(vms); 1342 1343 if (vms->iommu != VIRT_IOMMU_SMMUV3 || !vms->iommu_phandle) { 1344 return; 1345 } 1346 1347 dev = qdev_new(TYPE_ARM_SMMUV3); 1348 1349 object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus), 1350 &error_abort); 1351 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1352 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base); 1353 for (i = 0; i < NUM_SMMU_IRQS; i++) { 1354 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1355 qdev_get_gpio_in(vms->gic, irq + i)); 1356 } 1357 1358 node = g_strdup_printf("/smmuv3@%" PRIx64, base); 1359 qemu_fdt_add_subnode(ms->fdt, node); 1360 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1361 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 2, base, 2, size); 1362 1363 qemu_fdt_setprop_cells(ms->fdt, node, "interrupts", 1364 GIC_FDT_IRQ_TYPE_SPI, irq , GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1365 GIC_FDT_IRQ_TYPE_SPI, irq + 1, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1366 GIC_FDT_IRQ_TYPE_SPI, irq + 2, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI, 1367 GIC_FDT_IRQ_TYPE_SPI, irq + 3, GIC_FDT_IRQ_FLAGS_EDGE_LO_HI); 1368 1369 qemu_fdt_setprop(ms->fdt, node, "interrupt-names", irq_names, 1370 sizeof(irq_names)); 1371 1372 qemu_fdt_setprop(ms->fdt, node, "dma-coherent", NULL, 0); 1373 1374 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1375 1376 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1377 g_free(node); 1378 } 1379 1380 static void create_virtio_iommu_dt_bindings(VirtMachineState *vms) 1381 { 1382 const char compat[] = "virtio,pci-iommu\0pci1af4,1057"; 1383 uint16_t bdf = vms->virtio_iommu_bdf; 1384 MachineState *ms = MACHINE(vms); 1385 char *node; 1386 1387 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1388 1389 node = g_strdup_printf("%s/virtio_iommu@%x,%x", vms->pciehb_nodename, 1390 PCI_SLOT(bdf), PCI_FUNC(bdf)); 1391 qemu_fdt_add_subnode(ms->fdt, node); 1392 qemu_fdt_setprop(ms->fdt, node, "compatible", compat, sizeof(compat)); 1393 qemu_fdt_setprop_sized_cells(ms->fdt, node, "reg", 1394 1, bdf << 8, 1, 0, 1, 0, 1395 1, 0, 1, 0); 1396 1397 qemu_fdt_setprop_cell(ms->fdt, node, "#iommu-cells", 1); 1398 qemu_fdt_setprop_cell(ms->fdt, node, "phandle", vms->iommu_phandle); 1399 g_free(node); 1400 1401 qemu_fdt_setprop_cells(ms->fdt, vms->pciehb_nodename, "iommu-map", 1402 0x0, vms->iommu_phandle, 0x0, bdf, 1403 bdf + 1, vms->iommu_phandle, bdf + 1, 0xffff - bdf); 1404 } 1405 1406 static void create_pcie(VirtMachineState *vms) 1407 { 1408 hwaddr base_mmio = vms->memmap[VIRT_PCIE_MMIO].base; 1409 hwaddr size_mmio = vms->memmap[VIRT_PCIE_MMIO].size; 1410 hwaddr base_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].base; 1411 hwaddr size_mmio_high = vms->memmap[VIRT_HIGH_PCIE_MMIO].size; 1412 hwaddr base_pio = vms->memmap[VIRT_PCIE_PIO].base; 1413 hwaddr size_pio = vms->memmap[VIRT_PCIE_PIO].size; 1414 hwaddr base_ecam, size_ecam; 1415 hwaddr base = base_mmio; 1416 int nr_pcie_buses; 1417 int irq = vms->irqmap[VIRT_PCIE]; 1418 MemoryRegion *mmio_alias; 1419 MemoryRegion *mmio_reg; 1420 MemoryRegion *ecam_alias; 1421 MemoryRegion *ecam_reg; 1422 DeviceState *dev; 1423 char *nodename; 1424 int i, ecam_id; 1425 PCIHostState *pci; 1426 MachineState *ms = MACHINE(vms); 1427 1428 dev = qdev_new(TYPE_GPEX_HOST); 1429 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1430 1431 ecam_id = VIRT_ECAM_ID(vms->highmem_ecam); 1432 base_ecam = vms->memmap[ecam_id].base; 1433 size_ecam = vms->memmap[ecam_id].size; 1434 nr_pcie_buses = size_ecam / PCIE_MMCFG_SIZE_MIN; 1435 /* Map only the first size_ecam bytes of ECAM space */ 1436 ecam_alias = g_new0(MemoryRegion, 1); 1437 ecam_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); 1438 memory_region_init_alias(ecam_alias, OBJECT(dev), "pcie-ecam", 1439 ecam_reg, 0, size_ecam); 1440 memory_region_add_subregion(get_system_memory(), base_ecam, ecam_alias); 1441 1442 /* Map the MMIO window into system address space so as to expose 1443 * the section of PCI MMIO space which starts at the same base address 1444 * (ie 1:1 mapping for that part of PCI MMIO space visible through 1445 * the window). 1446 */ 1447 mmio_alias = g_new0(MemoryRegion, 1); 1448 mmio_reg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); 1449 memory_region_init_alias(mmio_alias, OBJECT(dev), "pcie-mmio", 1450 mmio_reg, base_mmio, size_mmio); 1451 memory_region_add_subregion(get_system_memory(), base_mmio, mmio_alias); 1452 1453 if (vms->highmem_mmio) { 1454 /* Map high MMIO space */ 1455 MemoryRegion *high_mmio_alias = g_new0(MemoryRegion, 1); 1456 1457 memory_region_init_alias(high_mmio_alias, OBJECT(dev), "pcie-mmio-high", 1458 mmio_reg, base_mmio_high, size_mmio_high); 1459 memory_region_add_subregion(get_system_memory(), base_mmio_high, 1460 high_mmio_alias); 1461 } 1462 1463 /* Map IO port space */ 1464 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); 1465 1466 for (i = 0; i < GPEX_NUM_IRQS; i++) { 1467 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, 1468 qdev_get_gpio_in(vms->gic, irq + i)); 1469 gpex_set_irq_num(GPEX_HOST(dev), i, irq + i); 1470 } 1471 1472 pci = PCI_HOST_BRIDGE(dev); 1473 pci->bypass_iommu = vms->default_bus_bypass_iommu; 1474 vms->bus = pci->bus; 1475 if (vms->bus) { 1476 for (i = 0; i < nb_nics; i++) { 1477 NICInfo *nd = &nd_table[i]; 1478 1479 if (!nd->model) { 1480 nd->model = g_strdup("virtio"); 1481 } 1482 1483 pci_nic_init_nofail(nd, pci->bus, nd->model, NULL); 1484 } 1485 } 1486 1487 nodename = vms->pciehb_nodename = g_strdup_printf("/pcie@%" PRIx64, base); 1488 qemu_fdt_add_subnode(ms->fdt, nodename); 1489 qemu_fdt_setprop_string(ms->fdt, nodename, 1490 "compatible", "pci-host-ecam-generic"); 1491 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "pci"); 1492 qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 3); 1493 qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 2); 1494 qemu_fdt_setprop_cell(ms->fdt, nodename, "linux,pci-domain", 0); 1495 qemu_fdt_setprop_cells(ms->fdt, nodename, "bus-range", 0, 1496 nr_pcie_buses - 1); 1497 qemu_fdt_setprop(ms->fdt, nodename, "dma-coherent", NULL, 0); 1498 1499 if (vms->msi_phandle) { 1500 qemu_fdt_setprop_cells(ms->fdt, nodename, "msi-map", 1501 0, vms->msi_phandle, 0, 0x10000); 1502 } 1503 1504 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 1505 2, base_ecam, 2, size_ecam); 1506 1507 if (vms->highmem_mmio) { 1508 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1509 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1510 2, base_pio, 2, size_pio, 1511 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1512 2, base_mmio, 2, size_mmio, 1513 1, FDT_PCI_RANGE_MMIO_64BIT, 1514 2, base_mmio_high, 1515 2, base_mmio_high, 2, size_mmio_high); 1516 } else { 1517 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "ranges", 1518 1, FDT_PCI_RANGE_IOPORT, 2, 0, 1519 2, base_pio, 2, size_pio, 1520 1, FDT_PCI_RANGE_MMIO, 2, base_mmio, 1521 2, base_mmio, 2, size_mmio); 1522 } 1523 1524 qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); 1525 create_pcie_irq_map(ms, vms->gic_phandle, irq, nodename); 1526 1527 if (vms->iommu) { 1528 vms->iommu_phandle = qemu_fdt_alloc_phandle(ms->fdt); 1529 1530 switch (vms->iommu) { 1531 case VIRT_IOMMU_SMMUV3: 1532 create_smmu(vms, vms->bus); 1533 qemu_fdt_setprop_cells(ms->fdt, nodename, "iommu-map", 1534 0x0, vms->iommu_phandle, 0x0, 0x10000); 1535 break; 1536 default: 1537 g_assert_not_reached(); 1538 } 1539 } 1540 } 1541 1542 static void create_platform_bus(VirtMachineState *vms) 1543 { 1544 DeviceState *dev; 1545 SysBusDevice *s; 1546 int i; 1547 MemoryRegion *sysmem = get_system_memory(); 1548 1549 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE); 1550 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE); 1551 qdev_prop_set_uint32(dev, "num_irqs", PLATFORM_BUS_NUM_IRQS); 1552 qdev_prop_set_uint32(dev, "mmio_size", vms->memmap[VIRT_PLATFORM_BUS].size); 1553 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 1554 vms->platform_bus_dev = dev; 1555 1556 s = SYS_BUS_DEVICE(dev); 1557 for (i = 0; i < PLATFORM_BUS_NUM_IRQS; i++) { 1558 int irq = vms->irqmap[VIRT_PLATFORM_BUS] + i; 1559 sysbus_connect_irq(s, i, qdev_get_gpio_in(vms->gic, irq)); 1560 } 1561 1562 memory_region_add_subregion(sysmem, 1563 vms->memmap[VIRT_PLATFORM_BUS].base, 1564 sysbus_mmio_get_region(s, 0)); 1565 } 1566 1567 static void create_tag_ram(MemoryRegion *tag_sysmem, 1568 hwaddr base, hwaddr size, 1569 const char *name) 1570 { 1571 MemoryRegion *tagram = g_new(MemoryRegion, 1); 1572 1573 memory_region_init_ram(tagram, NULL, name, size / 32, &error_fatal); 1574 memory_region_add_subregion(tag_sysmem, base / 32, tagram); 1575 } 1576 1577 static void create_secure_ram(VirtMachineState *vms, 1578 MemoryRegion *secure_sysmem, 1579 MemoryRegion *secure_tag_sysmem) 1580 { 1581 MemoryRegion *secram = g_new(MemoryRegion, 1); 1582 char *nodename; 1583 hwaddr base = vms->memmap[VIRT_SECURE_MEM].base; 1584 hwaddr size = vms->memmap[VIRT_SECURE_MEM].size; 1585 MachineState *ms = MACHINE(vms); 1586 1587 memory_region_init_ram(secram, NULL, "virt.secure-ram", size, 1588 &error_fatal); 1589 memory_region_add_subregion(secure_sysmem, base, secram); 1590 1591 nodename = g_strdup_printf("/secram@%" PRIx64, base); 1592 qemu_fdt_add_subnode(ms->fdt, nodename); 1593 qemu_fdt_setprop_string(ms->fdt, nodename, "device_type", "memory"); 1594 qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg", 2, base, 2, size); 1595 qemu_fdt_setprop_string(ms->fdt, nodename, "status", "disabled"); 1596 qemu_fdt_setprop_string(ms->fdt, nodename, "secure-status", "okay"); 1597 1598 if (secure_tag_sysmem) { 1599 create_tag_ram(secure_tag_sysmem, base, size, "mach-virt.secure-tag"); 1600 } 1601 1602 g_free(nodename); 1603 } 1604 1605 static void *machvirt_dtb(const struct arm_boot_info *binfo, int *fdt_size) 1606 { 1607 const VirtMachineState *board = container_of(binfo, VirtMachineState, 1608 bootinfo); 1609 MachineState *ms = MACHINE(board); 1610 1611 1612 *fdt_size = board->fdt_size; 1613 return ms->fdt; 1614 } 1615 1616 static void virt_build_smbios(VirtMachineState *vms) 1617 { 1618 MachineClass *mc = MACHINE_GET_CLASS(vms); 1619 MachineState *ms = MACHINE(vms); 1620 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1621 uint8_t *smbios_tables, *smbios_anchor; 1622 size_t smbios_tables_len, smbios_anchor_len; 1623 struct smbios_phys_mem_area mem_array; 1624 const char *product = "QEMU Virtual Machine"; 1625 1626 if (kvm_enabled()) { 1627 product = "KVM Virtual Machine"; 1628 } 1629 1630 smbios_set_defaults("QEMU", product, 1631 vmc->smbios_old_sys_ver ? "1.0" : mc->name, false, 1632 true, SMBIOS_ENTRY_POINT_TYPE_64); 1633 1634 /* build the array of physical mem area from base_memmap */ 1635 mem_array.address = vms->memmap[VIRT_MEM].base; 1636 mem_array.length = ms->ram_size; 1637 1638 smbios_get_tables(ms, &mem_array, 1, 1639 &smbios_tables, &smbios_tables_len, 1640 &smbios_anchor, &smbios_anchor_len, 1641 &error_fatal); 1642 1643 if (smbios_anchor) { 1644 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-tables", 1645 smbios_tables, smbios_tables_len); 1646 fw_cfg_add_file(vms->fw_cfg, "etc/smbios/smbios-anchor", 1647 smbios_anchor, smbios_anchor_len); 1648 } 1649 } 1650 1651 static 1652 void virt_machine_done(Notifier *notifier, void *data) 1653 { 1654 VirtMachineState *vms = container_of(notifier, VirtMachineState, 1655 machine_done); 1656 MachineState *ms = MACHINE(vms); 1657 ARMCPU *cpu = ARM_CPU(first_cpu); 1658 struct arm_boot_info *info = &vms->bootinfo; 1659 AddressSpace *as = arm_boot_address_space(cpu, info); 1660 1661 /* 1662 * If the user provided a dtb, we assume the dynamic sysbus nodes 1663 * already are integrated there. This corresponds to a use case where 1664 * the dynamic sysbus nodes are complex and their generation is not yet 1665 * supported. In that case the user can take charge of the guest dt 1666 * while qemu takes charge of the qom stuff. 1667 */ 1668 if (info->dtb_filename == NULL) { 1669 platform_bus_add_all_fdt_nodes(ms->fdt, "/intc", 1670 vms->memmap[VIRT_PLATFORM_BUS].base, 1671 vms->memmap[VIRT_PLATFORM_BUS].size, 1672 vms->irqmap[VIRT_PLATFORM_BUS]); 1673 } 1674 if (arm_load_dtb(info->dtb_start, info, info->dtb_limit, as, ms) < 0) { 1675 exit(1); 1676 } 1677 1678 fw_cfg_add_extra_pci_roots(vms->bus, vms->fw_cfg); 1679 1680 virt_acpi_setup(vms); 1681 virt_build_smbios(vms); 1682 } 1683 1684 static uint64_t virt_cpu_mp_affinity(VirtMachineState *vms, int idx) 1685 { 1686 uint8_t clustersz = ARM_DEFAULT_CPUS_PER_CLUSTER; 1687 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 1688 1689 if (!vmc->disallow_affinity_adjustment) { 1690 /* Adjust MPIDR like 64-bit KVM hosts, which incorporate the 1691 * GIC's target-list limitations. 32-bit KVM hosts currently 1692 * always create clusters of 4 CPUs, but that is expected to 1693 * change when they gain support for gicv3. When KVM is enabled 1694 * it will override the changes we make here, therefore our 1695 * purposes are to make TCG consistent (with 64-bit KVM hosts) 1696 * and to improve SGI efficiency. 1697 */ 1698 if (vms->gic_version == VIRT_GIC_VERSION_2) { 1699 clustersz = GIC_TARGETLIST_BITS; 1700 } else { 1701 clustersz = GICV3_TARGETLIST_BITS; 1702 } 1703 } 1704 return arm_cpu_mp_affinity(idx, clustersz); 1705 } 1706 1707 static inline bool *virt_get_high_memmap_enabled(VirtMachineState *vms, 1708 int index) 1709 { 1710 bool *enabled_array[] = { 1711 &vms->highmem_redists, 1712 &vms->highmem_ecam, 1713 &vms->highmem_mmio, 1714 }; 1715 1716 assert(ARRAY_SIZE(extended_memmap) - VIRT_LOWMEMMAP_LAST == 1717 ARRAY_SIZE(enabled_array)); 1718 assert(index - VIRT_LOWMEMMAP_LAST < ARRAY_SIZE(enabled_array)); 1719 1720 return enabled_array[index - VIRT_LOWMEMMAP_LAST]; 1721 } 1722 1723 static void virt_set_high_memmap(VirtMachineState *vms, 1724 hwaddr base, int pa_bits) 1725 { 1726 hwaddr region_base, region_size; 1727 bool *region_enabled, fits; 1728 int i; 1729 1730 for (i = VIRT_LOWMEMMAP_LAST; i < ARRAY_SIZE(extended_memmap); i++) { 1731 region_enabled = virt_get_high_memmap_enabled(vms, i); 1732 region_base = ROUND_UP(base, extended_memmap[i].size); 1733 region_size = extended_memmap[i].size; 1734 1735 vms->memmap[i].base = region_base; 1736 vms->memmap[i].size = region_size; 1737 1738 /* 1739 * Check each device to see if it fits in the PA space, 1740 * moving highest_gpa as we go. For compatibility, move 1741 * highest_gpa for disabled fitting devices as well, if 1742 * the compact layout has been disabled. 1743 * 1744 * For each device that doesn't fit, disable it. 1745 */ 1746 fits = (region_base + region_size) <= BIT_ULL(pa_bits); 1747 *region_enabled &= fits; 1748 if (vms->highmem_compact && !*region_enabled) { 1749 continue; 1750 } 1751 1752 base = region_base + region_size; 1753 if (fits) { 1754 vms->highest_gpa = base - 1; 1755 } 1756 } 1757 } 1758 1759 static void virt_set_memmap(VirtMachineState *vms, int pa_bits) 1760 { 1761 MachineState *ms = MACHINE(vms); 1762 hwaddr base, device_memory_base, device_memory_size, memtop; 1763 int i; 1764 1765 vms->memmap = extended_memmap; 1766 1767 for (i = 0; i < ARRAY_SIZE(base_memmap); i++) { 1768 vms->memmap[i] = base_memmap[i]; 1769 } 1770 1771 if (ms->ram_slots > ACPI_MAX_RAM_SLOTS) { 1772 error_report("unsupported number of memory slots: %"PRIu64, 1773 ms->ram_slots); 1774 exit(EXIT_FAILURE); 1775 } 1776 1777 /* 1778 * !highmem is exactly the same as limiting the PA space to 32bit, 1779 * irrespective of the underlying capabilities of the HW. 1780 */ 1781 if (!vms->highmem) { 1782 pa_bits = 32; 1783 } 1784 1785 /* 1786 * We compute the base of the high IO region depending on the 1787 * amount of initial and device memory. The device memory start/size 1788 * is aligned on 1GiB. We never put the high IO region below 256GiB 1789 * so that if maxram_size is < 255GiB we keep the legacy memory map. 1790 * The device region size assumes 1GiB page max alignment per slot. 1791 */ 1792 device_memory_base = 1793 ROUND_UP(vms->memmap[VIRT_MEM].base + ms->ram_size, GiB); 1794 device_memory_size = ms->maxram_size - ms->ram_size + ms->ram_slots * GiB; 1795 1796 /* Base address of the high IO region */ 1797 memtop = base = device_memory_base + ROUND_UP(device_memory_size, GiB); 1798 if (memtop > BIT_ULL(pa_bits)) { 1799 error_report("Addressing limited to %d bits, but memory exceeds it by %llu bytes\n", 1800 pa_bits, memtop - BIT_ULL(pa_bits)); 1801 exit(EXIT_FAILURE); 1802 } 1803 if (base < device_memory_base) { 1804 error_report("maxmem/slots too huge"); 1805 exit(EXIT_FAILURE); 1806 } 1807 if (base < vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES) { 1808 base = vms->memmap[VIRT_MEM].base + LEGACY_RAMLIMIT_BYTES; 1809 } 1810 1811 /* We know for sure that at least the memory fits in the PA space */ 1812 vms->highest_gpa = memtop - 1; 1813 1814 virt_set_high_memmap(vms, base, pa_bits); 1815 1816 if (device_memory_size > 0) { 1817 ms->device_memory = g_malloc0(sizeof(*ms->device_memory)); 1818 ms->device_memory->base = device_memory_base; 1819 memory_region_init(&ms->device_memory->mr, OBJECT(vms), 1820 "device-memory", device_memory_size); 1821 } 1822 } 1823 1824 static VirtGICType finalize_gic_version_do(const char *accel_name, 1825 VirtGICType gic_version, 1826 int gics_supported, 1827 unsigned int max_cpus) 1828 { 1829 /* Convert host/max/nosel to GIC version number */ 1830 switch (gic_version) { 1831 case VIRT_GIC_VERSION_HOST: 1832 if (!kvm_enabled()) { 1833 error_report("gic-version=host requires KVM"); 1834 exit(1); 1835 } 1836 1837 /* For KVM, gic-version=host means gic-version=max */ 1838 return finalize_gic_version_do(accel_name, VIRT_GIC_VERSION_MAX, 1839 gics_supported, max_cpus); 1840 case VIRT_GIC_VERSION_MAX: 1841 if (gics_supported & VIRT_GIC_VERSION_4_MASK) { 1842 gic_version = VIRT_GIC_VERSION_4; 1843 } else if (gics_supported & VIRT_GIC_VERSION_3_MASK) { 1844 gic_version = VIRT_GIC_VERSION_3; 1845 } else { 1846 gic_version = VIRT_GIC_VERSION_2; 1847 } 1848 break; 1849 case VIRT_GIC_VERSION_NOSEL: 1850 if ((gics_supported & VIRT_GIC_VERSION_2_MASK) && 1851 max_cpus <= GIC_NCPU) { 1852 gic_version = VIRT_GIC_VERSION_2; 1853 } else if (gics_supported & VIRT_GIC_VERSION_3_MASK) { 1854 /* 1855 * in case the host does not support v2 emulation or 1856 * the end-user requested more than 8 VCPUs we now default 1857 * to v3. In any case defaulting to v2 would be broken. 1858 */ 1859 gic_version = VIRT_GIC_VERSION_3; 1860 } else if (max_cpus > GIC_NCPU) { 1861 error_report("%s only supports GICv2 emulation but more than 8 " 1862 "vcpus are requested", accel_name); 1863 exit(1); 1864 } 1865 break; 1866 case VIRT_GIC_VERSION_2: 1867 case VIRT_GIC_VERSION_3: 1868 case VIRT_GIC_VERSION_4: 1869 break; 1870 } 1871 1872 /* Check chosen version is effectively supported */ 1873 switch (gic_version) { 1874 case VIRT_GIC_VERSION_2: 1875 if (!(gics_supported & VIRT_GIC_VERSION_2_MASK)) { 1876 error_report("%s does not support GICv2 emulation", accel_name); 1877 exit(1); 1878 } 1879 break; 1880 case VIRT_GIC_VERSION_3: 1881 if (!(gics_supported & VIRT_GIC_VERSION_3_MASK)) { 1882 error_report("%s does not support GICv3 emulation", accel_name); 1883 exit(1); 1884 } 1885 break; 1886 case VIRT_GIC_VERSION_4: 1887 if (!(gics_supported & VIRT_GIC_VERSION_4_MASK)) { 1888 error_report("%s does not support GICv4 emulation, is virtualization=on?", 1889 accel_name); 1890 exit(1); 1891 } 1892 break; 1893 default: 1894 error_report("logic error in finalize_gic_version"); 1895 exit(1); 1896 break; 1897 } 1898 1899 return gic_version; 1900 } 1901 1902 /* 1903 * finalize_gic_version - Determines the final gic_version 1904 * according to the gic-version property 1905 * 1906 * Default GIC type is v2 1907 */ 1908 static void finalize_gic_version(VirtMachineState *vms) 1909 { 1910 const char *accel_name = current_accel_name(); 1911 unsigned int max_cpus = MACHINE(vms)->smp.max_cpus; 1912 int gics_supported = 0; 1913 1914 /* Determine which GIC versions the current environment supports */ 1915 if (kvm_enabled() && kvm_irqchip_in_kernel()) { 1916 int probe_bitmap = kvm_arm_vgic_probe(); 1917 1918 if (!probe_bitmap) { 1919 error_report("Unable to determine GIC version supported by host"); 1920 exit(1); 1921 } 1922 1923 if (probe_bitmap & KVM_ARM_VGIC_V2) { 1924 gics_supported |= VIRT_GIC_VERSION_2_MASK; 1925 } 1926 if (probe_bitmap & KVM_ARM_VGIC_V3) { 1927 gics_supported |= VIRT_GIC_VERSION_3_MASK; 1928 } 1929 } else if (kvm_enabled() && !kvm_irqchip_in_kernel()) { 1930 /* KVM w/o kernel irqchip can only deal with GICv2 */ 1931 gics_supported |= VIRT_GIC_VERSION_2_MASK; 1932 accel_name = "KVM with kernel-irqchip=off"; 1933 } else if (tcg_enabled() || hvf_enabled() || qtest_enabled()) { 1934 gics_supported |= VIRT_GIC_VERSION_2_MASK; 1935 if (module_object_class_by_name("arm-gicv3")) { 1936 gics_supported |= VIRT_GIC_VERSION_3_MASK; 1937 if (vms->virt) { 1938 /* GICv4 only makes sense if CPU has EL2 */ 1939 gics_supported |= VIRT_GIC_VERSION_4_MASK; 1940 } 1941 } 1942 } else { 1943 error_report("Unsupported accelerator, can not determine GIC support"); 1944 exit(1); 1945 } 1946 1947 /* 1948 * Then convert helpers like host/max to concrete GIC versions and ensure 1949 * the desired version is supported 1950 */ 1951 vms->gic_version = finalize_gic_version_do(accel_name, vms->gic_version, 1952 gics_supported, max_cpus); 1953 } 1954 1955 /* 1956 * virt_cpu_post_init() must be called after the CPUs have 1957 * been realized and the GIC has been created. 1958 */ 1959 static void virt_cpu_post_init(VirtMachineState *vms, MemoryRegion *sysmem) 1960 { 1961 int max_cpus = MACHINE(vms)->smp.max_cpus; 1962 bool aarch64, pmu, steal_time; 1963 CPUState *cpu; 1964 1965 aarch64 = object_property_get_bool(OBJECT(first_cpu), "aarch64", NULL); 1966 pmu = object_property_get_bool(OBJECT(first_cpu), "pmu", NULL); 1967 steal_time = object_property_get_bool(OBJECT(first_cpu), 1968 "kvm-steal-time", NULL); 1969 1970 if (kvm_enabled()) { 1971 hwaddr pvtime_reg_base = vms->memmap[VIRT_PVTIME].base; 1972 hwaddr pvtime_reg_size = vms->memmap[VIRT_PVTIME].size; 1973 1974 if (steal_time) { 1975 MemoryRegion *pvtime = g_new(MemoryRegion, 1); 1976 hwaddr pvtime_size = max_cpus * PVTIME_SIZE_PER_CPU; 1977 1978 /* The memory region size must be a multiple of host page size. */ 1979 pvtime_size = REAL_HOST_PAGE_ALIGN(pvtime_size); 1980 1981 if (pvtime_size > pvtime_reg_size) { 1982 error_report("pvtime requires a %" HWADDR_PRId 1983 " byte memory region for %d CPUs," 1984 " but only %" HWADDR_PRId " has been reserved", 1985 pvtime_size, max_cpus, pvtime_reg_size); 1986 exit(1); 1987 } 1988 1989 memory_region_init_ram(pvtime, NULL, "pvtime", pvtime_size, NULL); 1990 memory_region_add_subregion(sysmem, pvtime_reg_base, pvtime); 1991 } 1992 1993 CPU_FOREACH(cpu) { 1994 if (pmu) { 1995 assert(arm_feature(&ARM_CPU(cpu)->env, ARM_FEATURE_PMU)); 1996 if (kvm_irqchip_in_kernel()) { 1997 kvm_arm_pmu_set_irq(cpu, PPI(VIRTUAL_PMU_IRQ)); 1998 } 1999 kvm_arm_pmu_init(cpu); 2000 } 2001 if (steal_time) { 2002 kvm_arm_pvtime_init(cpu, pvtime_reg_base + 2003 cpu->cpu_index * PVTIME_SIZE_PER_CPU); 2004 } 2005 } 2006 } else { 2007 if (aarch64 && vms->highmem) { 2008 int requested_pa_size = 64 - clz64(vms->highest_gpa); 2009 int pamax = arm_pamax(ARM_CPU(first_cpu)); 2010 2011 if (pamax < requested_pa_size) { 2012 error_report("VCPU supports less PA bits (%d) than " 2013 "requested by the memory map (%d)", 2014 pamax, requested_pa_size); 2015 exit(1); 2016 } 2017 } 2018 } 2019 } 2020 2021 static void machvirt_init(MachineState *machine) 2022 { 2023 VirtMachineState *vms = VIRT_MACHINE(machine); 2024 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(machine); 2025 MachineClass *mc = MACHINE_GET_CLASS(machine); 2026 const CPUArchIdList *possible_cpus; 2027 MemoryRegion *sysmem = get_system_memory(); 2028 MemoryRegion *secure_sysmem = NULL; 2029 MemoryRegion *tag_sysmem = NULL; 2030 MemoryRegion *secure_tag_sysmem = NULL; 2031 int n, virt_max_cpus; 2032 bool firmware_loaded; 2033 bool aarch64 = true; 2034 bool has_ged = !vmc->no_ged; 2035 unsigned int smp_cpus = machine->smp.cpus; 2036 unsigned int max_cpus = machine->smp.max_cpus; 2037 2038 if (!cpu_type_valid(machine->cpu_type)) { 2039 error_report("mach-virt: CPU type %s not supported", machine->cpu_type); 2040 exit(1); 2041 } 2042 2043 possible_cpus = mc->possible_cpu_arch_ids(machine); 2044 2045 /* 2046 * In accelerated mode, the memory map is computed earlier in kvm_type() 2047 * to create a VM with the right number of IPA bits. 2048 */ 2049 if (!vms->memmap) { 2050 Object *cpuobj; 2051 ARMCPU *armcpu; 2052 int pa_bits; 2053 2054 /* 2055 * Instanciate a temporary CPU object to find out about what 2056 * we are about to deal with. Once this is done, get rid of 2057 * the object. 2058 */ 2059 cpuobj = object_new(possible_cpus->cpus[0].type); 2060 armcpu = ARM_CPU(cpuobj); 2061 2062 pa_bits = arm_pamax(armcpu); 2063 2064 object_unref(cpuobj); 2065 2066 virt_set_memmap(vms, pa_bits); 2067 } 2068 2069 /* We can probe only here because during property set 2070 * KVM is not available yet 2071 */ 2072 finalize_gic_version(vms); 2073 2074 if (vms->secure) { 2075 /* 2076 * The Secure view of the world is the same as the NonSecure, 2077 * but with a few extra devices. Create it as a container region 2078 * containing the system memory at low priority; any secure-only 2079 * devices go in at higher priority and take precedence. 2080 */ 2081 secure_sysmem = g_new(MemoryRegion, 1); 2082 memory_region_init(secure_sysmem, OBJECT(machine), "secure-memory", 2083 UINT64_MAX); 2084 memory_region_add_subregion_overlap(secure_sysmem, 0, sysmem, -1); 2085 } 2086 2087 firmware_loaded = virt_firmware_init(vms, sysmem, 2088 secure_sysmem ?: sysmem); 2089 2090 /* If we have an EL3 boot ROM then the assumption is that it will 2091 * implement PSCI itself, so disable QEMU's internal implementation 2092 * so it doesn't get in the way. Instead of starting secondary 2093 * CPUs in PSCI powerdown state we will start them all running and 2094 * let the boot ROM sort them out. 2095 * The usual case is that we do use QEMU's PSCI implementation; 2096 * if the guest has EL2 then we will use SMC as the conduit, 2097 * and otherwise we will use HVC (for backwards compatibility and 2098 * because if we're using KVM then we must use HVC). 2099 */ 2100 if (vms->secure && firmware_loaded) { 2101 vms->psci_conduit = QEMU_PSCI_CONDUIT_DISABLED; 2102 } else if (vms->virt) { 2103 vms->psci_conduit = QEMU_PSCI_CONDUIT_SMC; 2104 } else { 2105 vms->psci_conduit = QEMU_PSCI_CONDUIT_HVC; 2106 } 2107 2108 /* 2109 * The maximum number of CPUs depends on the GIC version, or on how 2110 * many redistributors we can fit into the memory map (which in turn 2111 * depends on whether this is a GICv3 or v4). 2112 */ 2113 if (vms->gic_version == VIRT_GIC_VERSION_2) { 2114 virt_max_cpus = GIC_NCPU; 2115 } else { 2116 virt_max_cpus = virt_redist_capacity(vms, VIRT_GIC_REDIST); 2117 if (vms->highmem_redists) { 2118 virt_max_cpus += virt_redist_capacity(vms, VIRT_HIGH_GIC_REDIST2); 2119 } 2120 } 2121 2122 if (max_cpus > virt_max_cpus) { 2123 error_report("Number of SMP CPUs requested (%d) exceeds max CPUs " 2124 "supported by machine 'mach-virt' (%d)", 2125 max_cpus, virt_max_cpus); 2126 if (vms->gic_version != VIRT_GIC_VERSION_2 && !vms->highmem_redists) { 2127 error_printf("Try 'highmem-redists=on' for more CPUs\n"); 2128 } 2129 2130 exit(1); 2131 } 2132 2133 if (vms->secure && (kvm_enabled() || hvf_enabled())) { 2134 error_report("mach-virt: %s does not support providing " 2135 "Security extensions (TrustZone) to the guest CPU", 2136 kvm_enabled() ? "KVM" : "HVF"); 2137 exit(1); 2138 } 2139 2140 if (vms->virt && (kvm_enabled() || hvf_enabled())) { 2141 error_report("mach-virt: %s does not support providing " 2142 "Virtualization extensions to the guest CPU", 2143 kvm_enabled() ? "KVM" : "HVF"); 2144 exit(1); 2145 } 2146 2147 if (vms->mte && (kvm_enabled() || hvf_enabled())) { 2148 error_report("mach-virt: %s does not support providing " 2149 "MTE to the guest CPU", 2150 kvm_enabled() ? "KVM" : "HVF"); 2151 exit(1); 2152 } 2153 2154 create_fdt(vms); 2155 2156 assert(possible_cpus->len == max_cpus); 2157 for (n = 0; n < possible_cpus->len; n++) { 2158 Object *cpuobj; 2159 CPUState *cs; 2160 2161 if (n >= smp_cpus) { 2162 break; 2163 } 2164 2165 cpuobj = object_new(possible_cpus->cpus[n].type); 2166 object_property_set_int(cpuobj, "mp-affinity", 2167 possible_cpus->cpus[n].arch_id, NULL); 2168 2169 cs = CPU(cpuobj); 2170 cs->cpu_index = n; 2171 2172 numa_cpu_pre_plug(&possible_cpus->cpus[cs->cpu_index], DEVICE(cpuobj), 2173 &error_fatal); 2174 2175 aarch64 &= object_property_get_bool(cpuobj, "aarch64", NULL); 2176 2177 if (!vms->secure) { 2178 object_property_set_bool(cpuobj, "has_el3", false, NULL); 2179 } 2180 2181 if (!vms->virt && object_property_find(cpuobj, "has_el2")) { 2182 object_property_set_bool(cpuobj, "has_el2", false, NULL); 2183 } 2184 2185 if (vmc->kvm_no_adjvtime && 2186 object_property_find(cpuobj, "kvm-no-adjvtime")) { 2187 object_property_set_bool(cpuobj, "kvm-no-adjvtime", true, NULL); 2188 } 2189 2190 if (vmc->no_kvm_steal_time && 2191 object_property_find(cpuobj, "kvm-steal-time")) { 2192 object_property_set_bool(cpuobj, "kvm-steal-time", false, NULL); 2193 } 2194 2195 if (vmc->no_pmu && object_property_find(cpuobj, "pmu")) { 2196 object_property_set_bool(cpuobj, "pmu", false, NULL); 2197 } 2198 2199 if (vmc->no_tcg_lpa2 && object_property_find(cpuobj, "lpa2")) { 2200 object_property_set_bool(cpuobj, "lpa2", false, NULL); 2201 } 2202 2203 if (object_property_find(cpuobj, "reset-cbar")) { 2204 object_property_set_int(cpuobj, "reset-cbar", 2205 vms->memmap[VIRT_CPUPERIPHS].base, 2206 &error_abort); 2207 } 2208 2209 object_property_set_link(cpuobj, "memory", OBJECT(sysmem), 2210 &error_abort); 2211 if (vms->secure) { 2212 object_property_set_link(cpuobj, "secure-memory", 2213 OBJECT(secure_sysmem), &error_abort); 2214 } 2215 2216 if (vms->mte) { 2217 /* Create the memory region only once, but link to all cpus. */ 2218 if (!tag_sysmem) { 2219 /* 2220 * The property exists only if MemTag is supported. 2221 * If it is, we must allocate the ram to back that up. 2222 */ 2223 if (!object_property_find(cpuobj, "tag-memory")) { 2224 error_report("MTE requested, but not supported " 2225 "by the guest CPU"); 2226 exit(1); 2227 } 2228 2229 tag_sysmem = g_new(MemoryRegion, 1); 2230 memory_region_init(tag_sysmem, OBJECT(machine), 2231 "tag-memory", UINT64_MAX / 32); 2232 2233 if (vms->secure) { 2234 secure_tag_sysmem = g_new(MemoryRegion, 1); 2235 memory_region_init(secure_tag_sysmem, OBJECT(machine), 2236 "secure-tag-memory", UINT64_MAX / 32); 2237 2238 /* As with ram, secure-tag takes precedence over tag. */ 2239 memory_region_add_subregion_overlap(secure_tag_sysmem, 0, 2240 tag_sysmem, -1); 2241 } 2242 } 2243 2244 object_property_set_link(cpuobj, "tag-memory", OBJECT(tag_sysmem), 2245 &error_abort); 2246 if (vms->secure) { 2247 object_property_set_link(cpuobj, "secure-tag-memory", 2248 OBJECT(secure_tag_sysmem), 2249 &error_abort); 2250 } 2251 } 2252 2253 qdev_realize(DEVICE(cpuobj), NULL, &error_fatal); 2254 object_unref(cpuobj); 2255 } 2256 fdt_add_timer_nodes(vms); 2257 fdt_add_cpu_nodes(vms); 2258 2259 memory_region_add_subregion(sysmem, vms->memmap[VIRT_MEM].base, 2260 machine->ram); 2261 if (machine->device_memory) { 2262 memory_region_add_subregion(sysmem, machine->device_memory->base, 2263 &machine->device_memory->mr); 2264 } 2265 2266 virt_flash_fdt(vms, sysmem, secure_sysmem ?: sysmem); 2267 2268 create_gic(vms, sysmem); 2269 2270 virt_cpu_post_init(vms, sysmem); 2271 2272 fdt_add_pmu_nodes(vms); 2273 2274 create_uart(vms, VIRT_UART, sysmem, serial_hd(0)); 2275 2276 if (vms->secure) { 2277 create_secure_ram(vms, secure_sysmem, secure_tag_sysmem); 2278 create_uart(vms, VIRT_SECURE_UART, secure_sysmem, serial_hd(1)); 2279 } 2280 2281 if (tag_sysmem) { 2282 create_tag_ram(tag_sysmem, vms->memmap[VIRT_MEM].base, 2283 machine->ram_size, "mach-virt.tag"); 2284 } 2285 2286 vms->highmem_ecam &= (!firmware_loaded || aarch64); 2287 2288 create_rtc(vms); 2289 2290 create_pcie(vms); 2291 2292 if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)) { 2293 vms->acpi_dev = create_acpi_ged(vms); 2294 } else { 2295 create_gpio_devices(vms, VIRT_GPIO, sysmem); 2296 } 2297 2298 if (vms->secure && !vmc->no_secure_gpio) { 2299 create_gpio_devices(vms, VIRT_SECURE_GPIO, secure_sysmem); 2300 } 2301 2302 /* connect powerdown request */ 2303 vms->powerdown_notifier.notify = virt_powerdown_req; 2304 qemu_register_powerdown_notifier(&vms->powerdown_notifier); 2305 2306 /* Create mmio transports, so the user can create virtio backends 2307 * (which will be automatically plugged in to the transports). If 2308 * no backend is created the transport will just sit harmlessly idle. 2309 */ 2310 create_virtio_devices(vms); 2311 2312 vms->fw_cfg = create_fw_cfg(vms, &address_space_memory); 2313 rom_set_fw(vms->fw_cfg); 2314 2315 create_platform_bus(vms); 2316 2317 if (machine->nvdimms_state->is_enabled) { 2318 const struct AcpiGenericAddress arm_virt_nvdimm_acpi_dsmio = { 2319 .space_id = AML_AS_SYSTEM_MEMORY, 2320 .address = vms->memmap[VIRT_NVDIMM_ACPI].base, 2321 .bit_width = NVDIMM_ACPI_IO_LEN << 3 2322 }; 2323 2324 nvdimm_init_acpi_state(machine->nvdimms_state, sysmem, 2325 arm_virt_nvdimm_acpi_dsmio, 2326 vms->fw_cfg, OBJECT(vms)); 2327 } 2328 2329 vms->bootinfo.ram_size = machine->ram_size; 2330 vms->bootinfo.board_id = -1; 2331 vms->bootinfo.loader_start = vms->memmap[VIRT_MEM].base; 2332 vms->bootinfo.get_dtb = machvirt_dtb; 2333 vms->bootinfo.skip_dtb_autoload = true; 2334 vms->bootinfo.firmware_loaded = firmware_loaded; 2335 vms->bootinfo.psci_conduit = vms->psci_conduit; 2336 arm_load_kernel(ARM_CPU(first_cpu), machine, &vms->bootinfo); 2337 2338 vms->machine_done.notify = virt_machine_done; 2339 qemu_add_machine_init_done_notifier(&vms->machine_done); 2340 } 2341 2342 static bool virt_get_secure(Object *obj, Error **errp) 2343 { 2344 VirtMachineState *vms = VIRT_MACHINE(obj); 2345 2346 return vms->secure; 2347 } 2348 2349 static void virt_set_secure(Object *obj, bool value, Error **errp) 2350 { 2351 VirtMachineState *vms = VIRT_MACHINE(obj); 2352 2353 vms->secure = value; 2354 } 2355 2356 static bool virt_get_virt(Object *obj, Error **errp) 2357 { 2358 VirtMachineState *vms = VIRT_MACHINE(obj); 2359 2360 return vms->virt; 2361 } 2362 2363 static void virt_set_virt(Object *obj, bool value, Error **errp) 2364 { 2365 VirtMachineState *vms = VIRT_MACHINE(obj); 2366 2367 vms->virt = value; 2368 } 2369 2370 static bool virt_get_highmem(Object *obj, Error **errp) 2371 { 2372 VirtMachineState *vms = VIRT_MACHINE(obj); 2373 2374 return vms->highmem; 2375 } 2376 2377 static void virt_set_highmem(Object *obj, bool value, Error **errp) 2378 { 2379 VirtMachineState *vms = VIRT_MACHINE(obj); 2380 2381 vms->highmem = value; 2382 } 2383 2384 static bool virt_get_compact_highmem(Object *obj, Error **errp) 2385 { 2386 VirtMachineState *vms = VIRT_MACHINE(obj); 2387 2388 return vms->highmem_compact; 2389 } 2390 2391 static void virt_set_compact_highmem(Object *obj, bool value, Error **errp) 2392 { 2393 VirtMachineState *vms = VIRT_MACHINE(obj); 2394 2395 vms->highmem_compact = value; 2396 } 2397 2398 static bool virt_get_highmem_redists(Object *obj, Error **errp) 2399 { 2400 VirtMachineState *vms = VIRT_MACHINE(obj); 2401 2402 return vms->highmem_redists; 2403 } 2404 2405 static void virt_set_highmem_redists(Object *obj, bool value, Error **errp) 2406 { 2407 VirtMachineState *vms = VIRT_MACHINE(obj); 2408 2409 vms->highmem_redists = value; 2410 } 2411 2412 static bool virt_get_highmem_ecam(Object *obj, Error **errp) 2413 { 2414 VirtMachineState *vms = VIRT_MACHINE(obj); 2415 2416 return vms->highmem_ecam; 2417 } 2418 2419 static void virt_set_highmem_ecam(Object *obj, bool value, Error **errp) 2420 { 2421 VirtMachineState *vms = VIRT_MACHINE(obj); 2422 2423 vms->highmem_ecam = value; 2424 } 2425 2426 static bool virt_get_highmem_mmio(Object *obj, Error **errp) 2427 { 2428 VirtMachineState *vms = VIRT_MACHINE(obj); 2429 2430 return vms->highmem_mmio; 2431 } 2432 2433 static void virt_set_highmem_mmio(Object *obj, bool value, Error **errp) 2434 { 2435 VirtMachineState *vms = VIRT_MACHINE(obj); 2436 2437 vms->highmem_mmio = value; 2438 } 2439 2440 2441 static bool virt_get_its(Object *obj, Error **errp) 2442 { 2443 VirtMachineState *vms = VIRT_MACHINE(obj); 2444 2445 return vms->its; 2446 } 2447 2448 static void virt_set_its(Object *obj, bool value, Error **errp) 2449 { 2450 VirtMachineState *vms = VIRT_MACHINE(obj); 2451 2452 vms->its = value; 2453 } 2454 2455 static bool virt_get_dtb_randomness(Object *obj, Error **errp) 2456 { 2457 VirtMachineState *vms = VIRT_MACHINE(obj); 2458 2459 return vms->dtb_randomness; 2460 } 2461 2462 static void virt_set_dtb_randomness(Object *obj, bool value, Error **errp) 2463 { 2464 VirtMachineState *vms = VIRT_MACHINE(obj); 2465 2466 vms->dtb_randomness = value; 2467 } 2468 2469 static char *virt_get_oem_id(Object *obj, Error **errp) 2470 { 2471 VirtMachineState *vms = VIRT_MACHINE(obj); 2472 2473 return g_strdup(vms->oem_id); 2474 } 2475 2476 static void virt_set_oem_id(Object *obj, const char *value, Error **errp) 2477 { 2478 VirtMachineState *vms = VIRT_MACHINE(obj); 2479 size_t len = strlen(value); 2480 2481 if (len > 6) { 2482 error_setg(errp, 2483 "User specified oem-id value is bigger than 6 bytes in size"); 2484 return; 2485 } 2486 2487 strncpy(vms->oem_id, value, 6); 2488 } 2489 2490 static char *virt_get_oem_table_id(Object *obj, Error **errp) 2491 { 2492 VirtMachineState *vms = VIRT_MACHINE(obj); 2493 2494 return g_strdup(vms->oem_table_id); 2495 } 2496 2497 static void virt_set_oem_table_id(Object *obj, const char *value, 2498 Error **errp) 2499 { 2500 VirtMachineState *vms = VIRT_MACHINE(obj); 2501 size_t len = strlen(value); 2502 2503 if (len > 8) { 2504 error_setg(errp, 2505 "User specified oem-table-id value is bigger than 8 bytes in size"); 2506 return; 2507 } 2508 strncpy(vms->oem_table_id, value, 8); 2509 } 2510 2511 2512 bool virt_is_acpi_enabled(VirtMachineState *vms) 2513 { 2514 if (vms->acpi == ON_OFF_AUTO_OFF) { 2515 return false; 2516 } 2517 return true; 2518 } 2519 2520 static void virt_get_acpi(Object *obj, Visitor *v, const char *name, 2521 void *opaque, Error **errp) 2522 { 2523 VirtMachineState *vms = VIRT_MACHINE(obj); 2524 OnOffAuto acpi = vms->acpi; 2525 2526 visit_type_OnOffAuto(v, name, &acpi, errp); 2527 } 2528 2529 static void virt_set_acpi(Object *obj, Visitor *v, const char *name, 2530 void *opaque, Error **errp) 2531 { 2532 VirtMachineState *vms = VIRT_MACHINE(obj); 2533 2534 visit_type_OnOffAuto(v, name, &vms->acpi, errp); 2535 } 2536 2537 static bool virt_get_ras(Object *obj, Error **errp) 2538 { 2539 VirtMachineState *vms = VIRT_MACHINE(obj); 2540 2541 return vms->ras; 2542 } 2543 2544 static void virt_set_ras(Object *obj, bool value, Error **errp) 2545 { 2546 VirtMachineState *vms = VIRT_MACHINE(obj); 2547 2548 vms->ras = value; 2549 } 2550 2551 static bool virt_get_mte(Object *obj, Error **errp) 2552 { 2553 VirtMachineState *vms = VIRT_MACHINE(obj); 2554 2555 return vms->mte; 2556 } 2557 2558 static void virt_set_mte(Object *obj, bool value, Error **errp) 2559 { 2560 VirtMachineState *vms = VIRT_MACHINE(obj); 2561 2562 vms->mte = value; 2563 } 2564 2565 static char *virt_get_gic_version(Object *obj, Error **errp) 2566 { 2567 VirtMachineState *vms = VIRT_MACHINE(obj); 2568 const char *val; 2569 2570 switch (vms->gic_version) { 2571 case VIRT_GIC_VERSION_4: 2572 val = "4"; 2573 break; 2574 case VIRT_GIC_VERSION_3: 2575 val = "3"; 2576 break; 2577 default: 2578 val = "2"; 2579 break; 2580 } 2581 return g_strdup(val); 2582 } 2583 2584 static void virt_set_gic_version(Object *obj, const char *value, Error **errp) 2585 { 2586 VirtMachineState *vms = VIRT_MACHINE(obj); 2587 2588 if (!strcmp(value, "4")) { 2589 vms->gic_version = VIRT_GIC_VERSION_4; 2590 } else if (!strcmp(value, "3")) { 2591 vms->gic_version = VIRT_GIC_VERSION_3; 2592 } else if (!strcmp(value, "2")) { 2593 vms->gic_version = VIRT_GIC_VERSION_2; 2594 } else if (!strcmp(value, "host")) { 2595 vms->gic_version = VIRT_GIC_VERSION_HOST; /* Will probe later */ 2596 } else if (!strcmp(value, "max")) { 2597 vms->gic_version = VIRT_GIC_VERSION_MAX; /* Will probe later */ 2598 } else { 2599 error_setg(errp, "Invalid gic-version value"); 2600 error_append_hint(errp, "Valid values are 3, 2, host, max.\n"); 2601 } 2602 } 2603 2604 static char *virt_get_iommu(Object *obj, Error **errp) 2605 { 2606 VirtMachineState *vms = VIRT_MACHINE(obj); 2607 2608 switch (vms->iommu) { 2609 case VIRT_IOMMU_NONE: 2610 return g_strdup("none"); 2611 case VIRT_IOMMU_SMMUV3: 2612 return g_strdup("smmuv3"); 2613 default: 2614 g_assert_not_reached(); 2615 } 2616 } 2617 2618 static void virt_set_iommu(Object *obj, const char *value, Error **errp) 2619 { 2620 VirtMachineState *vms = VIRT_MACHINE(obj); 2621 2622 if (!strcmp(value, "smmuv3")) { 2623 vms->iommu = VIRT_IOMMU_SMMUV3; 2624 } else if (!strcmp(value, "none")) { 2625 vms->iommu = VIRT_IOMMU_NONE; 2626 } else { 2627 error_setg(errp, "Invalid iommu value"); 2628 error_append_hint(errp, "Valid values are none, smmuv3.\n"); 2629 } 2630 } 2631 2632 static bool virt_get_default_bus_bypass_iommu(Object *obj, Error **errp) 2633 { 2634 VirtMachineState *vms = VIRT_MACHINE(obj); 2635 2636 return vms->default_bus_bypass_iommu; 2637 } 2638 2639 static void virt_set_default_bus_bypass_iommu(Object *obj, bool value, 2640 Error **errp) 2641 { 2642 VirtMachineState *vms = VIRT_MACHINE(obj); 2643 2644 vms->default_bus_bypass_iommu = value; 2645 } 2646 2647 static CpuInstanceProperties 2648 virt_cpu_index_to_props(MachineState *ms, unsigned cpu_index) 2649 { 2650 MachineClass *mc = MACHINE_GET_CLASS(ms); 2651 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms); 2652 2653 assert(cpu_index < possible_cpus->len); 2654 return possible_cpus->cpus[cpu_index].props; 2655 } 2656 2657 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx) 2658 { 2659 int64_t socket_id = ms->possible_cpus->cpus[idx].props.socket_id; 2660 2661 return socket_id % ms->numa_state->num_nodes; 2662 } 2663 2664 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms) 2665 { 2666 int n; 2667 unsigned int max_cpus = ms->smp.max_cpus; 2668 VirtMachineState *vms = VIRT_MACHINE(ms); 2669 MachineClass *mc = MACHINE_GET_CLASS(vms); 2670 2671 if (ms->possible_cpus) { 2672 assert(ms->possible_cpus->len == max_cpus); 2673 return ms->possible_cpus; 2674 } 2675 2676 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 2677 sizeof(CPUArchId) * max_cpus); 2678 ms->possible_cpus->len = max_cpus; 2679 for (n = 0; n < ms->possible_cpus->len; n++) { 2680 ms->possible_cpus->cpus[n].type = ms->cpu_type; 2681 ms->possible_cpus->cpus[n].arch_id = 2682 virt_cpu_mp_affinity(vms, n); 2683 2684 assert(!mc->smp_props.dies_supported); 2685 ms->possible_cpus->cpus[n].props.has_socket_id = true; 2686 ms->possible_cpus->cpus[n].props.socket_id = 2687 n / (ms->smp.clusters * ms->smp.cores * ms->smp.threads); 2688 ms->possible_cpus->cpus[n].props.has_cluster_id = true; 2689 ms->possible_cpus->cpus[n].props.cluster_id = 2690 (n / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters; 2691 ms->possible_cpus->cpus[n].props.has_core_id = true; 2692 ms->possible_cpus->cpus[n].props.core_id = 2693 (n / ms->smp.threads) % ms->smp.cores; 2694 ms->possible_cpus->cpus[n].props.has_thread_id = true; 2695 ms->possible_cpus->cpus[n].props.thread_id = 2696 n % ms->smp.threads; 2697 } 2698 return ms->possible_cpus; 2699 } 2700 2701 static void virt_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 2702 Error **errp) 2703 { 2704 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2705 const MachineState *ms = MACHINE(hotplug_dev); 2706 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2707 2708 if (!vms->acpi_dev) { 2709 error_setg(errp, 2710 "memory hotplug is not enabled: missing acpi-ged device"); 2711 return; 2712 } 2713 2714 if (vms->mte) { 2715 error_setg(errp, "memory hotplug is not enabled: MTE is enabled"); 2716 return; 2717 } 2718 2719 if (is_nvdimm && !ms->nvdimms_state->is_enabled) { 2720 error_setg(errp, "nvdimm is not enabled: add 'nvdimm=on' to '-M'"); 2721 return; 2722 } 2723 2724 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), NULL, errp); 2725 } 2726 2727 static void virt_memory_plug(HotplugHandler *hotplug_dev, 2728 DeviceState *dev, Error **errp) 2729 { 2730 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2731 MachineState *ms = MACHINE(hotplug_dev); 2732 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 2733 2734 pc_dimm_plug(PC_DIMM(dev), MACHINE(vms)); 2735 2736 if (is_nvdimm) { 2737 nvdimm_plug(ms->nvdimms_state); 2738 } 2739 2740 hotplug_handler_plug(HOTPLUG_HANDLER(vms->acpi_dev), 2741 dev, &error_abort); 2742 } 2743 2744 static void virt_virtio_md_pci_pre_plug(HotplugHandler *hotplug_dev, 2745 DeviceState *dev, Error **errp) 2746 { 2747 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2748 Error *local_err = NULL; 2749 2750 if (!hotplug_dev2 && dev->hotplugged) { 2751 /* 2752 * Without a bus hotplug handler, we cannot control the plug/unplug 2753 * order. We should never reach this point when hotplugging on ARM. 2754 * However, it's nice to add a safety net, similar to what we have 2755 * on x86. 2756 */ 2757 error_setg(errp, "hotplug of virtio based memory devices not supported" 2758 " on this bus."); 2759 return; 2760 } 2761 /* 2762 * First, see if we can plug this memory device at all. If that 2763 * succeeds, branch of to the actual hotplug handler. 2764 */ 2765 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL, 2766 &local_err); 2767 if (!local_err && hotplug_dev2) { 2768 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err); 2769 } 2770 error_propagate(errp, local_err); 2771 } 2772 2773 static void virt_virtio_md_pci_plug(HotplugHandler *hotplug_dev, 2774 DeviceState *dev, Error **errp) 2775 { 2776 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 2777 Error *local_err = NULL; 2778 2779 /* 2780 * Plug the memory device first and then branch off to the actual 2781 * hotplug handler. If that one fails, we can easily undo the memory 2782 * device bits. 2783 */ 2784 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2785 if (hotplug_dev2) { 2786 hotplug_handler_plug(hotplug_dev2, dev, &local_err); 2787 if (local_err) { 2788 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 2789 } 2790 } 2791 error_propagate(errp, local_err); 2792 } 2793 2794 static void virt_virtio_md_pci_unplug_request(HotplugHandler *hotplug_dev, 2795 DeviceState *dev, Error **errp) 2796 { 2797 /* We don't support hot unplug of virtio based memory devices */ 2798 error_setg(errp, "virtio based memory devices cannot be unplugged."); 2799 } 2800 2801 2802 static void virt_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, 2803 DeviceState *dev, Error **errp) 2804 { 2805 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2806 2807 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2808 virt_memory_pre_plug(hotplug_dev, dev, errp); 2809 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2810 virt_virtio_md_pci_pre_plug(hotplug_dev, dev, errp); 2811 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2812 hwaddr db_start = 0, db_end = 0; 2813 char *resv_prop_str; 2814 2815 if (vms->iommu != VIRT_IOMMU_NONE) { 2816 error_setg(errp, "virt machine does not support multiple IOMMUs"); 2817 return; 2818 } 2819 2820 switch (vms->msi_controller) { 2821 case VIRT_MSI_CTRL_NONE: 2822 return; 2823 case VIRT_MSI_CTRL_ITS: 2824 /* GITS_TRANSLATER page */ 2825 db_start = base_memmap[VIRT_GIC_ITS].base + 0x10000; 2826 db_end = base_memmap[VIRT_GIC_ITS].base + 2827 base_memmap[VIRT_GIC_ITS].size - 1; 2828 break; 2829 case VIRT_MSI_CTRL_GICV2M: 2830 /* MSI_SETSPI_NS page */ 2831 db_start = base_memmap[VIRT_GIC_V2M].base; 2832 db_end = db_start + base_memmap[VIRT_GIC_V2M].size - 1; 2833 break; 2834 } 2835 resv_prop_str = g_strdup_printf("0x%"PRIx64":0x%"PRIx64":%u", 2836 db_start, db_end, 2837 VIRTIO_IOMMU_RESV_MEM_T_MSI); 2838 2839 object_property_set_uint(OBJECT(dev), "len-reserved-regions", 1, errp); 2840 object_property_set_str(OBJECT(dev), "reserved-regions[0]", 2841 resv_prop_str, errp); 2842 g_free(resv_prop_str); 2843 } 2844 } 2845 2846 static void virt_machine_device_plug_cb(HotplugHandler *hotplug_dev, 2847 DeviceState *dev, Error **errp) 2848 { 2849 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2850 2851 if (vms->platform_bus_dev) { 2852 MachineClass *mc = MACHINE_GET_CLASS(vms); 2853 2854 if (device_is_dynamic_sysbus(mc, dev)) { 2855 platform_bus_link_device(PLATFORM_BUS_DEVICE(vms->platform_bus_dev), 2856 SYS_BUS_DEVICE(dev)); 2857 } 2858 } 2859 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2860 virt_memory_plug(hotplug_dev, dev, errp); 2861 } 2862 2863 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2864 virt_virtio_md_pci_plug(hotplug_dev, dev, errp); 2865 } 2866 2867 if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2868 PCIDevice *pdev = PCI_DEVICE(dev); 2869 2870 vms->iommu = VIRT_IOMMU_VIRTIO; 2871 vms->virtio_iommu_bdf = pci_get_bdf(pdev); 2872 create_virtio_iommu_dt_bindings(vms); 2873 } 2874 } 2875 2876 static void virt_dimm_unplug_request(HotplugHandler *hotplug_dev, 2877 DeviceState *dev, Error **errp) 2878 { 2879 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2880 2881 if (!vms->acpi_dev) { 2882 error_setg(errp, 2883 "memory hotplug is not enabled: missing acpi-ged device"); 2884 return; 2885 } 2886 2887 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 2888 error_setg(errp, "nvdimm device hot unplug is not supported yet."); 2889 return; 2890 } 2891 2892 hotplug_handler_unplug_request(HOTPLUG_HANDLER(vms->acpi_dev), dev, 2893 errp); 2894 } 2895 2896 static void virt_dimm_unplug(HotplugHandler *hotplug_dev, 2897 DeviceState *dev, Error **errp) 2898 { 2899 VirtMachineState *vms = VIRT_MACHINE(hotplug_dev); 2900 Error *local_err = NULL; 2901 2902 hotplug_handler_unplug(HOTPLUG_HANDLER(vms->acpi_dev), dev, &local_err); 2903 if (local_err) { 2904 goto out; 2905 } 2906 2907 pc_dimm_unplug(PC_DIMM(dev), MACHINE(vms)); 2908 qdev_unrealize(dev); 2909 2910 out: 2911 error_propagate(errp, local_err); 2912 } 2913 2914 static void virt_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, 2915 DeviceState *dev, Error **errp) 2916 { 2917 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2918 virt_dimm_unplug_request(hotplug_dev, dev, errp); 2919 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) { 2920 virt_virtio_md_pci_unplug_request(hotplug_dev, dev, errp); 2921 } else { 2922 error_setg(errp, "device unplug request for unsupported device" 2923 " type: %s", object_get_typename(OBJECT(dev))); 2924 } 2925 } 2926 2927 static void virt_machine_device_unplug_cb(HotplugHandler *hotplug_dev, 2928 DeviceState *dev, Error **errp) 2929 { 2930 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 2931 virt_dimm_unplug(hotplug_dev, dev, errp); 2932 } else { 2933 error_setg(errp, "virt: device unplug for unsupported device" 2934 " type: %s", object_get_typename(OBJECT(dev))); 2935 } 2936 } 2937 2938 static HotplugHandler *virt_machine_get_hotplug_handler(MachineState *machine, 2939 DeviceState *dev) 2940 { 2941 MachineClass *mc = MACHINE_GET_CLASS(machine); 2942 2943 if (device_is_dynamic_sysbus(mc, dev) || 2944 object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || 2945 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI) || 2946 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI)) { 2947 return HOTPLUG_HANDLER(machine); 2948 } 2949 return NULL; 2950 } 2951 2952 /* 2953 * for arm64 kvm_type [7-0] encodes the requested number of bits 2954 * in the IPA address space 2955 */ 2956 static int virt_kvm_type(MachineState *ms, const char *type_str) 2957 { 2958 VirtMachineState *vms = VIRT_MACHINE(ms); 2959 int max_vm_pa_size, requested_pa_size; 2960 bool fixed_ipa; 2961 2962 max_vm_pa_size = kvm_arm_get_max_vm_ipa_size(ms, &fixed_ipa); 2963 2964 /* we freeze the memory map to compute the highest gpa */ 2965 virt_set_memmap(vms, max_vm_pa_size); 2966 2967 requested_pa_size = 64 - clz64(vms->highest_gpa); 2968 2969 /* 2970 * KVM requires the IPA size to be at least 32 bits. 2971 */ 2972 if (requested_pa_size < 32) { 2973 requested_pa_size = 32; 2974 } 2975 2976 if (requested_pa_size > max_vm_pa_size) { 2977 error_report("-m and ,maxmem option values " 2978 "require an IPA range (%d bits) larger than " 2979 "the one supported by the host (%d bits)", 2980 requested_pa_size, max_vm_pa_size); 2981 exit(1); 2982 } 2983 /* 2984 * We return the requested PA log size, unless KVM only supports 2985 * the implicit legacy 40b IPA setting, in which case the kvm_type 2986 * must be 0. 2987 */ 2988 return fixed_ipa ? 0 : requested_pa_size; 2989 } 2990 2991 static void virt_machine_class_init(ObjectClass *oc, void *data) 2992 { 2993 MachineClass *mc = MACHINE_CLASS(oc); 2994 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 2995 2996 mc->init = machvirt_init; 2997 /* Start with max_cpus set to 512, which is the maximum supported by KVM. 2998 * The value may be reduced later when we have more information about the 2999 * configuration of the particular instance. 3000 */ 3001 mc->max_cpus = 512; 3002 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_CALXEDA_XGMAC); 3003 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_AMD_XGBE); 3004 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE); 3005 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_VFIO_PLATFORM); 3006 #ifdef CONFIG_TPM 3007 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); 3008 #endif 3009 mc->block_default_type = IF_VIRTIO; 3010 mc->no_cdrom = 1; 3011 mc->pci_allow_0_address = true; 3012 /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */ 3013 mc->minimum_page_bits = 12; 3014 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids; 3015 mc->cpu_index_to_instance_props = virt_cpu_index_to_props; 3016 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15"); 3017 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id; 3018 mc->kvm_type = virt_kvm_type; 3019 assert(!mc->get_hotplug_handler); 3020 mc->get_hotplug_handler = virt_machine_get_hotplug_handler; 3021 hc->pre_plug = virt_machine_device_pre_plug_cb; 3022 hc->plug = virt_machine_device_plug_cb; 3023 hc->unplug_request = virt_machine_device_unplug_request_cb; 3024 hc->unplug = virt_machine_device_unplug_cb; 3025 mc->nvdimm_supported = true; 3026 mc->smp_props.clusters_supported = true; 3027 mc->auto_enable_numa_with_memhp = true; 3028 mc->auto_enable_numa_with_memdev = true; 3029 mc->default_ram_id = "mach-virt.ram"; 3030 3031 object_class_property_add(oc, "acpi", "OnOffAuto", 3032 virt_get_acpi, virt_set_acpi, 3033 NULL, NULL); 3034 object_class_property_set_description(oc, "acpi", 3035 "Enable ACPI"); 3036 object_class_property_add_bool(oc, "secure", virt_get_secure, 3037 virt_set_secure); 3038 object_class_property_set_description(oc, "secure", 3039 "Set on/off to enable/disable the ARM " 3040 "Security Extensions (TrustZone)"); 3041 3042 object_class_property_add_bool(oc, "virtualization", virt_get_virt, 3043 virt_set_virt); 3044 object_class_property_set_description(oc, "virtualization", 3045 "Set on/off to enable/disable emulating a " 3046 "guest CPU which implements the ARM " 3047 "Virtualization Extensions"); 3048 3049 object_class_property_add_bool(oc, "highmem", virt_get_highmem, 3050 virt_set_highmem); 3051 object_class_property_set_description(oc, "highmem", 3052 "Set on/off to enable/disable using " 3053 "physical address space above 32 bits"); 3054 3055 object_class_property_add_bool(oc, "compact-highmem", 3056 virt_get_compact_highmem, 3057 virt_set_compact_highmem); 3058 object_class_property_set_description(oc, "compact-highmem", 3059 "Set on/off to enable/disable compact " 3060 "layout for high memory regions"); 3061 3062 object_class_property_add_bool(oc, "highmem-redists", 3063 virt_get_highmem_redists, 3064 virt_set_highmem_redists); 3065 object_class_property_set_description(oc, "highmem-redists", 3066 "Set on/off to enable/disable high " 3067 "memory region for GICv3 or GICv4 " 3068 "redistributor"); 3069 3070 object_class_property_add_bool(oc, "highmem-ecam", 3071 virt_get_highmem_ecam, 3072 virt_set_highmem_ecam); 3073 object_class_property_set_description(oc, "highmem-ecam", 3074 "Set on/off to enable/disable high " 3075 "memory region for PCI ECAM"); 3076 3077 object_class_property_add_bool(oc, "highmem-mmio", 3078 virt_get_highmem_mmio, 3079 virt_set_highmem_mmio); 3080 object_class_property_set_description(oc, "highmem-mmio", 3081 "Set on/off to enable/disable high " 3082 "memory region for PCI MMIO"); 3083 3084 object_class_property_add_str(oc, "gic-version", virt_get_gic_version, 3085 virt_set_gic_version); 3086 object_class_property_set_description(oc, "gic-version", 3087 "Set GIC version. " 3088 "Valid values are 2, 3, 4, host and max"); 3089 3090 object_class_property_add_str(oc, "iommu", virt_get_iommu, virt_set_iommu); 3091 object_class_property_set_description(oc, "iommu", 3092 "Set the IOMMU type. " 3093 "Valid values are none and smmuv3"); 3094 3095 object_class_property_add_bool(oc, "default-bus-bypass-iommu", 3096 virt_get_default_bus_bypass_iommu, 3097 virt_set_default_bus_bypass_iommu); 3098 object_class_property_set_description(oc, "default-bus-bypass-iommu", 3099 "Set on/off to enable/disable " 3100 "bypass_iommu for default root bus"); 3101 3102 object_class_property_add_bool(oc, "ras", virt_get_ras, 3103 virt_set_ras); 3104 object_class_property_set_description(oc, "ras", 3105 "Set on/off to enable/disable reporting host memory errors " 3106 "to a KVM guest using ACPI and guest external abort exceptions"); 3107 3108 object_class_property_add_bool(oc, "mte", virt_get_mte, virt_set_mte); 3109 object_class_property_set_description(oc, "mte", 3110 "Set on/off to enable/disable emulating a " 3111 "guest CPU which implements the ARM " 3112 "Memory Tagging Extension"); 3113 3114 object_class_property_add_bool(oc, "its", virt_get_its, 3115 virt_set_its); 3116 object_class_property_set_description(oc, "its", 3117 "Set on/off to enable/disable " 3118 "ITS instantiation"); 3119 3120 object_class_property_add_bool(oc, "dtb-randomness", 3121 virt_get_dtb_randomness, 3122 virt_set_dtb_randomness); 3123 object_class_property_set_description(oc, "dtb-randomness", 3124 "Set off to disable passing random or " 3125 "non-deterministic dtb nodes to guest"); 3126 3127 object_class_property_add_bool(oc, "dtb-kaslr-seed", 3128 virt_get_dtb_randomness, 3129 virt_set_dtb_randomness); 3130 object_class_property_set_description(oc, "dtb-kaslr-seed", 3131 "Deprecated synonym of dtb-randomness"); 3132 3133 object_class_property_add_str(oc, "x-oem-id", 3134 virt_get_oem_id, 3135 virt_set_oem_id); 3136 object_class_property_set_description(oc, "x-oem-id", 3137 "Override the default value of field OEMID " 3138 "in ACPI table header." 3139 "The string may be up to 6 bytes in size"); 3140 3141 3142 object_class_property_add_str(oc, "x-oem-table-id", 3143 virt_get_oem_table_id, 3144 virt_set_oem_table_id); 3145 object_class_property_set_description(oc, "x-oem-table-id", 3146 "Override the default value of field OEM Table ID " 3147 "in ACPI table header." 3148 "The string may be up to 8 bytes in size"); 3149 3150 } 3151 3152 static void virt_instance_init(Object *obj) 3153 { 3154 VirtMachineState *vms = VIRT_MACHINE(obj); 3155 VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); 3156 3157 /* EL3 is disabled by default on virt: this makes us consistent 3158 * between KVM and TCG for this board, and it also allows us to 3159 * boot UEFI blobs which assume no TrustZone support. 3160 */ 3161 vms->secure = false; 3162 3163 /* EL2 is also disabled by default, for similar reasons */ 3164 vms->virt = false; 3165 3166 /* High memory is enabled by default */ 3167 vms->highmem = true; 3168 vms->highmem_compact = !vmc->no_highmem_compact; 3169 vms->gic_version = VIRT_GIC_VERSION_NOSEL; 3170 3171 vms->highmem_ecam = !vmc->no_highmem_ecam; 3172 vms->highmem_mmio = true; 3173 vms->highmem_redists = true; 3174 3175 if (vmc->no_its) { 3176 vms->its = false; 3177 } else { 3178 /* Default allows ITS instantiation */ 3179 vms->its = true; 3180 3181 if (vmc->no_tcg_its) { 3182 vms->tcg_its = false; 3183 } else { 3184 vms->tcg_its = true; 3185 } 3186 } 3187 3188 /* Default disallows iommu instantiation */ 3189 vms->iommu = VIRT_IOMMU_NONE; 3190 3191 /* The default root bus is attached to iommu by default */ 3192 vms->default_bus_bypass_iommu = false; 3193 3194 /* Default disallows RAS instantiation */ 3195 vms->ras = false; 3196 3197 /* MTE is disabled by default. */ 3198 vms->mte = false; 3199 3200 /* Supply kaslr-seed and rng-seed by default */ 3201 vms->dtb_randomness = true; 3202 3203 vms->irqmap = a15irqmap; 3204 3205 virt_flash_create(vms); 3206 3207 vms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6); 3208 vms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); 3209 } 3210 3211 static const TypeInfo virt_machine_info = { 3212 .name = TYPE_VIRT_MACHINE, 3213 .parent = TYPE_MACHINE, 3214 .abstract = true, 3215 .instance_size = sizeof(VirtMachineState), 3216 .class_size = sizeof(VirtMachineClass), 3217 .class_init = virt_machine_class_init, 3218 .instance_init = virt_instance_init, 3219 .interfaces = (InterfaceInfo[]) { 3220 { TYPE_HOTPLUG_HANDLER }, 3221 { } 3222 }, 3223 }; 3224 3225 static void machvirt_machine_init(void) 3226 { 3227 type_register_static(&virt_machine_info); 3228 } 3229 type_init(machvirt_machine_init); 3230 3231 static void virt_machine_8_0_options(MachineClass *mc) 3232 { 3233 } 3234 DEFINE_VIRT_MACHINE_AS_LATEST(8, 0) 3235 3236 static void virt_machine_7_2_options(MachineClass *mc) 3237 { 3238 virt_machine_8_0_options(mc); 3239 compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len); 3240 } 3241 DEFINE_VIRT_MACHINE(7, 2) 3242 3243 static void virt_machine_7_1_options(MachineClass *mc) 3244 { 3245 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3246 3247 virt_machine_7_2_options(mc); 3248 compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len); 3249 /* Compact layout for high memory regions was introduced with 7.2 */ 3250 vmc->no_highmem_compact = true; 3251 } 3252 DEFINE_VIRT_MACHINE(7, 1) 3253 3254 static void virt_machine_7_0_options(MachineClass *mc) 3255 { 3256 virt_machine_7_1_options(mc); 3257 compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len); 3258 } 3259 DEFINE_VIRT_MACHINE(7, 0) 3260 3261 static void virt_machine_6_2_options(MachineClass *mc) 3262 { 3263 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3264 3265 virt_machine_7_0_options(mc); 3266 compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len); 3267 vmc->no_tcg_lpa2 = true; 3268 } 3269 DEFINE_VIRT_MACHINE(6, 2) 3270 3271 static void virt_machine_6_1_options(MachineClass *mc) 3272 { 3273 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3274 3275 virt_machine_6_2_options(mc); 3276 compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len); 3277 mc->smp_props.prefer_sockets = true; 3278 vmc->no_cpu_topology = true; 3279 3280 /* qemu ITS was introduced with 6.2 */ 3281 vmc->no_tcg_its = true; 3282 } 3283 DEFINE_VIRT_MACHINE(6, 1) 3284 3285 static void virt_machine_6_0_options(MachineClass *mc) 3286 { 3287 virt_machine_6_1_options(mc); 3288 compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len); 3289 } 3290 DEFINE_VIRT_MACHINE(6, 0) 3291 3292 static void virt_machine_5_2_options(MachineClass *mc) 3293 { 3294 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3295 3296 virt_machine_6_0_options(mc); 3297 compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len); 3298 vmc->no_secure_gpio = true; 3299 } 3300 DEFINE_VIRT_MACHINE(5, 2) 3301 3302 static void virt_machine_5_1_options(MachineClass *mc) 3303 { 3304 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3305 3306 virt_machine_5_2_options(mc); 3307 compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len); 3308 vmc->no_kvm_steal_time = true; 3309 } 3310 DEFINE_VIRT_MACHINE(5, 1) 3311 3312 static void virt_machine_5_0_options(MachineClass *mc) 3313 { 3314 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3315 3316 virt_machine_5_1_options(mc); 3317 compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len); 3318 mc->numa_mem_supported = true; 3319 vmc->acpi_expose_flash = true; 3320 mc->auto_enable_numa_with_memdev = false; 3321 } 3322 DEFINE_VIRT_MACHINE(5, 0) 3323 3324 static void virt_machine_4_2_options(MachineClass *mc) 3325 { 3326 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3327 3328 virt_machine_5_0_options(mc); 3329 compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len); 3330 vmc->kvm_no_adjvtime = true; 3331 } 3332 DEFINE_VIRT_MACHINE(4, 2) 3333 3334 static void virt_machine_4_1_options(MachineClass *mc) 3335 { 3336 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3337 3338 virt_machine_4_2_options(mc); 3339 compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len); 3340 vmc->no_ged = true; 3341 mc->auto_enable_numa_with_memhp = false; 3342 } 3343 DEFINE_VIRT_MACHINE(4, 1) 3344 3345 static void virt_machine_4_0_options(MachineClass *mc) 3346 { 3347 virt_machine_4_1_options(mc); 3348 compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len); 3349 } 3350 DEFINE_VIRT_MACHINE(4, 0) 3351 3352 static void virt_machine_3_1_options(MachineClass *mc) 3353 { 3354 virt_machine_4_0_options(mc); 3355 compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len); 3356 } 3357 DEFINE_VIRT_MACHINE(3, 1) 3358 3359 static void virt_machine_3_0_options(MachineClass *mc) 3360 { 3361 virt_machine_3_1_options(mc); 3362 compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len); 3363 } 3364 DEFINE_VIRT_MACHINE(3, 0) 3365 3366 static void virt_machine_2_12_options(MachineClass *mc) 3367 { 3368 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3369 3370 virt_machine_3_0_options(mc); 3371 compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len); 3372 vmc->no_highmem_ecam = true; 3373 mc->max_cpus = 255; 3374 } 3375 DEFINE_VIRT_MACHINE(2, 12) 3376 3377 static void virt_machine_2_11_options(MachineClass *mc) 3378 { 3379 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3380 3381 virt_machine_2_12_options(mc); 3382 compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len); 3383 vmc->smbios_old_sys_ver = true; 3384 } 3385 DEFINE_VIRT_MACHINE(2, 11) 3386 3387 static void virt_machine_2_10_options(MachineClass *mc) 3388 { 3389 virt_machine_2_11_options(mc); 3390 compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len); 3391 /* before 2.11 we never faulted accesses to bad addresses */ 3392 mc->ignore_memory_transaction_failures = true; 3393 } 3394 DEFINE_VIRT_MACHINE(2, 10) 3395 3396 static void virt_machine_2_9_options(MachineClass *mc) 3397 { 3398 virt_machine_2_10_options(mc); 3399 compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len); 3400 } 3401 DEFINE_VIRT_MACHINE(2, 9) 3402 3403 static void virt_machine_2_8_options(MachineClass *mc) 3404 { 3405 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3406 3407 virt_machine_2_9_options(mc); 3408 compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len); 3409 /* For 2.8 and earlier we falsely claimed in the DT that 3410 * our timers were edge-triggered, not level-triggered. 3411 */ 3412 vmc->claim_edge_triggered_timers = true; 3413 } 3414 DEFINE_VIRT_MACHINE(2, 8) 3415 3416 static void virt_machine_2_7_options(MachineClass *mc) 3417 { 3418 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3419 3420 virt_machine_2_8_options(mc); 3421 compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len); 3422 /* ITS was introduced with 2.8 */ 3423 vmc->no_its = true; 3424 /* Stick with 1K pages for migration compatibility */ 3425 mc->minimum_page_bits = 0; 3426 } 3427 DEFINE_VIRT_MACHINE(2, 7) 3428 3429 static void virt_machine_2_6_options(MachineClass *mc) 3430 { 3431 VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc)); 3432 3433 virt_machine_2_7_options(mc); 3434 compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len); 3435 vmc->disallow_affinity_adjustment = true; 3436 /* Disable PMU for 2.6 as PMU support was first introduced in 2.7 */ 3437 vmc->no_pmu = true; 3438 } 3439 DEFINE_VIRT_MACHINE(2, 6) 3440