1 /* 2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator 3 * 4 * Copyright (c) 2004-2007 Fabrice Bellard 5 * Copyright (c) 2007 Jocelyn Mayer 6 * Copyright (c) 2010 David Gibson, IBM Corporation. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 * 26 */ 27 #include "qemu/osdep.h" 28 #include "qapi/error.h" 29 #include "qapi/visitor.h" 30 #include "sysemu/sysemu.h" 31 #include "sysemu/numa.h" 32 #include "hw/hw.h" 33 #include "qemu/log.h" 34 #include "hw/fw-path-provider.h" 35 #include "elf.h" 36 #include "net/net.h" 37 #include "sysemu/device_tree.h" 38 #include "sysemu/block-backend.h" 39 #include "sysemu/cpus.h" 40 #include "sysemu/hw_accel.h" 41 #include "kvm_ppc.h" 42 #include "migration/misc.h" 43 #include "migration/global_state.h" 44 #include "migration/register.h" 45 #include "mmu-hash64.h" 46 #include "mmu-book3s-v3.h" 47 #include "cpu-models.h" 48 #include "qom/cpu.h" 49 50 #include "hw/boards.h" 51 #include "hw/ppc/ppc.h" 52 #include "hw/loader.h" 53 54 #include "hw/ppc/fdt.h" 55 #include "hw/ppc/spapr.h" 56 #include "hw/ppc/spapr_vio.h" 57 #include "hw/pci-host/spapr.h" 58 #include "hw/ppc/xics.h" 59 #include "hw/pci/msi.h" 60 61 #include "hw/pci/pci.h" 62 #include "hw/scsi/scsi.h" 63 #include "hw/virtio/virtio-scsi.h" 64 #include "hw/virtio/vhost-scsi-common.h" 65 66 #include "exec/address-spaces.h" 67 #include "hw/usb.h" 68 #include "qemu/config-file.h" 69 #include "qemu/error-report.h" 70 #include "trace.h" 71 #include "hw/nmi.h" 72 #include "hw/intc/intc.h" 73 74 #include "hw/compat.h" 75 #include "qemu/cutils.h" 76 #include "hw/ppc/spapr_cpu_core.h" 77 #include "qmp-commands.h" 78 79 #include <libfdt.h> 80 81 /* SLOF memory layout: 82 * 83 * SLOF raw image loaded at 0, copies its romfs right below the flat 84 * device-tree, then position SLOF itself 31M below that 85 * 86 * So we set FW_OVERHEAD to 40MB which should account for all of that 87 * and more 88 * 89 * We load our kernel at 4M, leaving space for SLOF initial image 90 */ 91 #define FDT_MAX_SIZE 0x100000 92 #define RTAS_MAX_SIZE 0x10000 93 #define RTAS_MAX_ADDR 0x80000000 /* RTAS must stay below that */ 94 #define FW_MAX_SIZE 0x400000 95 #define FW_FILE_NAME "slof.bin" 96 #define FW_OVERHEAD 0x2800000 97 #define KERNEL_LOAD_ADDR FW_MAX_SIZE 98 99 #define MIN_RMA_SLOF 128UL 100 101 #define PHANDLE_XICP 0x00001111 102 103 static ICSState *spapr_ics_create(sPAPRMachineState *spapr, 104 const char *type_ics, 105 int nr_irqs, Error **errp) 106 { 107 Error *local_err = NULL; 108 Object *obj; 109 110 obj = object_new(type_ics); 111 object_property_add_child(OBJECT(spapr), "ics", obj, &error_abort); 112 object_property_add_const_link(obj, ICS_PROP_XICS, OBJECT(spapr), 113 &error_abort); 114 object_property_set_int(obj, nr_irqs, "nr-irqs", &local_err); 115 if (local_err) { 116 goto error; 117 } 118 object_property_set_bool(obj, true, "realized", &local_err); 119 if (local_err) { 120 goto error; 121 } 122 123 return ICS_SIMPLE(obj); 124 125 error: 126 error_propagate(errp, local_err); 127 return NULL; 128 } 129 130 static bool pre_2_10_vmstate_dummy_icp_needed(void *opaque) 131 { 132 /* Dummy entries correspond to unused ICPState objects in older QEMUs, 133 * and newer QEMUs don't even have them. In both cases, we don't want 134 * to send anything on the wire. 135 */ 136 return false; 137 } 138 139 static const VMStateDescription pre_2_10_vmstate_dummy_icp = { 140 .name = "icp/server", 141 .version_id = 1, 142 .minimum_version_id = 1, 143 .needed = pre_2_10_vmstate_dummy_icp_needed, 144 .fields = (VMStateField[]) { 145 VMSTATE_UNUSED(4), /* uint32_t xirr */ 146 VMSTATE_UNUSED(1), /* uint8_t pending_priority */ 147 VMSTATE_UNUSED(1), /* uint8_t mfrr */ 148 VMSTATE_END_OF_LIST() 149 }, 150 }; 151 152 static void pre_2_10_vmstate_register_dummy_icp(int i) 153 { 154 vmstate_register(NULL, i, &pre_2_10_vmstate_dummy_icp, 155 (void *)(uintptr_t) i); 156 } 157 158 static void pre_2_10_vmstate_unregister_dummy_icp(int i) 159 { 160 vmstate_unregister(NULL, &pre_2_10_vmstate_dummy_icp, 161 (void *)(uintptr_t) i); 162 } 163 164 static inline int xics_max_server_number(void) 165 { 166 return DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), smp_threads); 167 } 168 169 static void xics_system_init(MachineState *machine, int nr_irqs, Error **errp) 170 { 171 sPAPRMachineState *spapr = SPAPR_MACHINE(machine); 172 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); 173 174 if (kvm_enabled()) { 175 if (machine_kernel_irqchip_allowed(machine) && 176 !xics_kvm_init(spapr, errp)) { 177 spapr->icp_type = TYPE_KVM_ICP; 178 spapr->ics = spapr_ics_create(spapr, TYPE_ICS_KVM, nr_irqs, errp); 179 } 180 if (machine_kernel_irqchip_required(machine) && !spapr->ics) { 181 error_prepend(errp, "kernel_irqchip requested but unavailable: "); 182 return; 183 } 184 } 185 186 if (!spapr->ics) { 187 xics_spapr_init(spapr); 188 spapr->icp_type = TYPE_ICP; 189 spapr->ics = spapr_ics_create(spapr, TYPE_ICS_SIMPLE, nr_irqs, errp); 190 if (!spapr->ics) { 191 return; 192 } 193 } 194 195 if (smc->pre_2_10_has_unused_icps) { 196 int i; 197 198 for (i = 0; i < xics_max_server_number(); i++) { 199 /* Dummy entries get deregistered when real ICPState objects 200 * are registered during CPU core hotplug. 201 */ 202 pre_2_10_vmstate_register_dummy_icp(i); 203 } 204 } 205 } 206 207 static int spapr_fixup_cpu_smt_dt(void *fdt, int offset, PowerPCCPU *cpu, 208 int smt_threads) 209 { 210 int i, ret = 0; 211 uint32_t servers_prop[smt_threads]; 212 uint32_t gservers_prop[smt_threads * 2]; 213 int index = spapr_vcpu_id(cpu); 214 215 if (cpu->compat_pvr) { 216 ret = fdt_setprop_cell(fdt, offset, "cpu-version", cpu->compat_pvr); 217 if (ret < 0) { 218 return ret; 219 } 220 } 221 222 /* Build interrupt servers and gservers properties */ 223 for (i = 0; i < smt_threads; i++) { 224 servers_prop[i] = cpu_to_be32(index + i); 225 /* Hack, direct the group queues back to cpu 0 */ 226 gservers_prop[i*2] = cpu_to_be32(index + i); 227 gservers_prop[i*2 + 1] = 0; 228 } 229 ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s", 230 servers_prop, sizeof(servers_prop)); 231 if (ret < 0) { 232 return ret; 233 } 234 ret = fdt_setprop(fdt, offset, "ibm,ppc-interrupt-gserver#s", 235 gservers_prop, sizeof(gservers_prop)); 236 237 return ret; 238 } 239 240 static int spapr_fixup_cpu_numa_dt(void *fdt, int offset, PowerPCCPU *cpu) 241 { 242 int index = spapr_vcpu_id(cpu); 243 uint32_t associativity[] = {cpu_to_be32(0x5), 244 cpu_to_be32(0x0), 245 cpu_to_be32(0x0), 246 cpu_to_be32(0x0), 247 cpu_to_be32(cpu->node_id), 248 cpu_to_be32(index)}; 249 250 /* Advertise NUMA via ibm,associativity */ 251 return fdt_setprop(fdt, offset, "ibm,associativity", associativity, 252 sizeof(associativity)); 253 } 254 255 /* Populate the "ibm,pa-features" property */ 256 static void spapr_populate_pa_features(sPAPRMachineState *spapr, 257 PowerPCCPU *cpu, 258 void *fdt, int offset, 259 bool legacy_guest) 260 { 261 CPUPPCState *env = &cpu->env; 262 uint8_t pa_features_206[] = { 6, 0, 263 0xf6, 0x1f, 0xc7, 0x00, 0x80, 0xc0 }; 264 uint8_t pa_features_207[] = { 24, 0, 265 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, 266 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 267 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 268 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 }; 269 uint8_t pa_features_300[] = { 66, 0, 270 /* 0: MMU|FPU|SLB|RUN|DABR|NX, 1: fri[nzpm]|DABRX|SPRG3|SLB0|PP110 */ 271 /* 2: VPM|DS205|PPR|DS202|DS206, 3: LSD|URG, SSO, 5: LE|CFAR|EB|LSQ */ 272 0xf6, 0x1f, 0xc7, 0xc0, 0x80, 0xf0, /* 0 - 5 */ 273 /* 6: DS207 */ 274 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, /* 6 - 11 */ 275 /* 16: Vector */ 276 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, /* 12 - 17 */ 277 /* 18: Vec. Scalar, 20: Vec. XOR, 22: HTM */ 278 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 18 - 23 */ 279 /* 24: Ext. Dec, 26: 64 bit ftrs, 28: PM ftrs */ 280 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 24 - 29 */ 281 /* 30: MMR, 32: LE atomic, 34: EBB + ext EBB */ 282 0x80, 0x00, 0x80, 0x00, 0xC0, 0x00, /* 30 - 35 */ 283 /* 36: SPR SO, 38: Copy/Paste, 40: Radix MMU */ 284 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 36 - 41 */ 285 /* 42: PM, 44: PC RA, 46: SC vec'd */ 286 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 42 - 47 */ 287 /* 48: SIMD, 50: QP BFP, 52: String */ 288 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 48 - 53 */ 289 /* 54: DecFP, 56: DecI, 58: SHA */ 290 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, /* 54 - 59 */ 291 /* 60: NM atomic, 62: RNG */ 292 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, /* 60 - 65 */ 293 }; 294 uint8_t *pa_features = NULL; 295 size_t pa_size; 296 297 if (ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_2_06, 0, cpu->compat_pvr)) { 298 pa_features = pa_features_206; 299 pa_size = sizeof(pa_features_206); 300 } 301 if (ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_2_07, 0, cpu->compat_pvr)) { 302 pa_features = pa_features_207; 303 pa_size = sizeof(pa_features_207); 304 } 305 if (ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00, 0, cpu->compat_pvr)) { 306 pa_features = pa_features_300; 307 pa_size = sizeof(pa_features_300); 308 } 309 if (!pa_features) { 310 return; 311 } 312 313 if (env->ci_large_pages) { 314 /* 315 * Note: we keep CI large pages off by default because a 64K capable 316 * guest provisioned with large pages might otherwise try to map a qemu 317 * framebuffer (or other kind of memory mapped PCI BAR) using 64K pages 318 * even if that qemu runs on a 4k host. 319 * We dd this bit back here if we are confident this is not an issue 320 */ 321 pa_features[3] |= 0x20; 322 } 323 if ((spapr_get_cap(spapr, SPAPR_CAP_HTM) != 0) && pa_size > 24) { 324 pa_features[24] |= 0x80; /* Transactional memory support */ 325 } 326 if (legacy_guest && pa_size > 40) { 327 /* Workaround for broken kernels that attempt (guest) radix 328 * mode when they can't handle it, if they see the radix bit set 329 * in pa-features. So hide it from them. */ 330 pa_features[40 + 2] &= ~0x80; /* Radix MMU */ 331 } 332 333 _FDT((fdt_setprop(fdt, offset, "ibm,pa-features", pa_features, pa_size))); 334 } 335 336 static int spapr_fixup_cpu_dt(void *fdt, sPAPRMachineState *spapr) 337 { 338 int ret = 0, offset, cpus_offset; 339 CPUState *cs; 340 char cpu_model[32]; 341 int smt = kvmppc_smt_threads(); 342 uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)}; 343 344 CPU_FOREACH(cs) { 345 PowerPCCPU *cpu = POWERPC_CPU(cs); 346 DeviceClass *dc = DEVICE_GET_CLASS(cs); 347 int index = spapr_vcpu_id(cpu); 348 int compat_smt = MIN(smp_threads, ppc_compat_max_vthreads(cpu)); 349 350 if ((index % smt) != 0) { 351 continue; 352 } 353 354 snprintf(cpu_model, 32, "%s@%x", dc->fw_name, index); 355 356 cpus_offset = fdt_path_offset(fdt, "/cpus"); 357 if (cpus_offset < 0) { 358 cpus_offset = fdt_add_subnode(fdt, 0, "cpus"); 359 if (cpus_offset < 0) { 360 return cpus_offset; 361 } 362 } 363 offset = fdt_subnode_offset(fdt, cpus_offset, cpu_model); 364 if (offset < 0) { 365 offset = fdt_add_subnode(fdt, cpus_offset, cpu_model); 366 if (offset < 0) { 367 return offset; 368 } 369 } 370 371 ret = fdt_setprop(fdt, offset, "ibm,pft-size", 372 pft_size_prop, sizeof(pft_size_prop)); 373 if (ret < 0) { 374 return ret; 375 } 376 377 if (nb_numa_nodes > 1) { 378 ret = spapr_fixup_cpu_numa_dt(fdt, offset, cpu); 379 if (ret < 0) { 380 return ret; 381 } 382 } 383 384 ret = spapr_fixup_cpu_smt_dt(fdt, offset, cpu, compat_smt); 385 if (ret < 0) { 386 return ret; 387 } 388 389 spapr_populate_pa_features(spapr, cpu, fdt, offset, 390 spapr->cas_legacy_guest_workaround); 391 } 392 return ret; 393 } 394 395 static hwaddr spapr_node0_size(MachineState *machine) 396 { 397 if (nb_numa_nodes) { 398 int i; 399 for (i = 0; i < nb_numa_nodes; ++i) { 400 if (numa_info[i].node_mem) { 401 return MIN(pow2floor(numa_info[i].node_mem), 402 machine->ram_size); 403 } 404 } 405 } 406 return machine->ram_size; 407 } 408 409 static void add_str(GString *s, const gchar *s1) 410 { 411 g_string_append_len(s, s1, strlen(s1) + 1); 412 } 413 414 static int spapr_populate_memory_node(void *fdt, int nodeid, hwaddr start, 415 hwaddr size) 416 { 417 uint32_t associativity[] = { 418 cpu_to_be32(0x4), /* length */ 419 cpu_to_be32(0x0), cpu_to_be32(0x0), 420 cpu_to_be32(0x0), cpu_to_be32(nodeid) 421 }; 422 char mem_name[32]; 423 uint64_t mem_reg_property[2]; 424 int off; 425 426 mem_reg_property[0] = cpu_to_be64(start); 427 mem_reg_property[1] = cpu_to_be64(size); 428 429 sprintf(mem_name, "memory@" TARGET_FMT_lx, start); 430 off = fdt_add_subnode(fdt, 0, mem_name); 431 _FDT(off); 432 _FDT((fdt_setprop_string(fdt, off, "device_type", "memory"))); 433 _FDT((fdt_setprop(fdt, off, "reg", mem_reg_property, 434 sizeof(mem_reg_property)))); 435 _FDT((fdt_setprop(fdt, off, "ibm,associativity", associativity, 436 sizeof(associativity)))); 437 return off; 438 } 439 440 static int spapr_populate_memory(sPAPRMachineState *spapr, void *fdt) 441 { 442 MachineState *machine = MACHINE(spapr); 443 hwaddr mem_start, node_size; 444 int i, nb_nodes = nb_numa_nodes; 445 NodeInfo *nodes = numa_info; 446 NodeInfo ramnode; 447 448 /* No NUMA nodes, assume there is just one node with whole RAM */ 449 if (!nb_numa_nodes) { 450 nb_nodes = 1; 451 ramnode.node_mem = machine->ram_size; 452 nodes = &ramnode; 453 } 454 455 for (i = 0, mem_start = 0; i < nb_nodes; ++i) { 456 if (!nodes[i].node_mem) { 457 continue; 458 } 459 if (mem_start >= machine->ram_size) { 460 node_size = 0; 461 } else { 462 node_size = nodes[i].node_mem; 463 if (node_size > machine->ram_size - mem_start) { 464 node_size = machine->ram_size - mem_start; 465 } 466 } 467 if (!mem_start) { 468 /* ppc_spapr_init() checks for rma_size <= node0_size already */ 469 spapr_populate_memory_node(fdt, i, 0, spapr->rma_size); 470 mem_start += spapr->rma_size; 471 node_size -= spapr->rma_size; 472 } 473 for ( ; node_size; ) { 474 hwaddr sizetmp = pow2floor(node_size); 475 476 /* mem_start != 0 here */ 477 if (ctzl(mem_start) < ctzl(sizetmp)) { 478 sizetmp = 1ULL << ctzl(mem_start); 479 } 480 481 spapr_populate_memory_node(fdt, i, mem_start, sizetmp); 482 node_size -= sizetmp; 483 mem_start += sizetmp; 484 } 485 } 486 487 return 0; 488 } 489 490 static void spapr_populate_cpu_dt(CPUState *cs, void *fdt, int offset, 491 sPAPRMachineState *spapr) 492 { 493 PowerPCCPU *cpu = POWERPC_CPU(cs); 494 CPUPPCState *env = &cpu->env; 495 PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs); 496 int index = spapr_vcpu_id(cpu); 497 uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40), 498 0xffffffff, 0xffffffff}; 499 uint32_t tbfreq = kvm_enabled() ? kvmppc_get_tbfreq() 500 : SPAPR_TIMEBASE_FREQ; 501 uint32_t cpufreq = kvm_enabled() ? kvmppc_get_clockfreq() : 1000000000; 502 uint32_t page_sizes_prop[64]; 503 size_t page_sizes_prop_size; 504 uint32_t vcpus_per_socket = smp_threads * smp_cores; 505 uint32_t pft_size_prop[] = {0, cpu_to_be32(spapr->htab_shift)}; 506 int compat_smt = MIN(smp_threads, ppc_compat_max_vthreads(cpu)); 507 sPAPRDRConnector *drc; 508 int drc_index; 509 uint32_t radix_AP_encodings[PPC_PAGE_SIZES_MAX_SZ]; 510 int i; 511 512 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_CPU, index); 513 if (drc) { 514 drc_index = spapr_drc_index(drc); 515 _FDT((fdt_setprop_cell(fdt, offset, "ibm,my-drc-index", drc_index))); 516 } 517 518 _FDT((fdt_setprop_cell(fdt, offset, "reg", index))); 519 _FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu"))); 520 521 _FDT((fdt_setprop_cell(fdt, offset, "cpu-version", env->spr[SPR_PVR]))); 522 _FDT((fdt_setprop_cell(fdt, offset, "d-cache-block-size", 523 env->dcache_line_size))); 524 _FDT((fdt_setprop_cell(fdt, offset, "d-cache-line-size", 525 env->dcache_line_size))); 526 _FDT((fdt_setprop_cell(fdt, offset, "i-cache-block-size", 527 env->icache_line_size))); 528 _FDT((fdt_setprop_cell(fdt, offset, "i-cache-line-size", 529 env->icache_line_size))); 530 531 if (pcc->l1_dcache_size) { 532 _FDT((fdt_setprop_cell(fdt, offset, "d-cache-size", 533 pcc->l1_dcache_size))); 534 } else { 535 warn_report("Unknown L1 dcache size for cpu"); 536 } 537 if (pcc->l1_icache_size) { 538 _FDT((fdt_setprop_cell(fdt, offset, "i-cache-size", 539 pcc->l1_icache_size))); 540 } else { 541 warn_report("Unknown L1 icache size for cpu"); 542 } 543 544 _FDT((fdt_setprop_cell(fdt, offset, "timebase-frequency", tbfreq))); 545 _FDT((fdt_setprop_cell(fdt, offset, "clock-frequency", cpufreq))); 546 _FDT((fdt_setprop_cell(fdt, offset, "slb-size", env->slb_nr))); 547 _FDT((fdt_setprop_cell(fdt, offset, "ibm,slb-size", env->slb_nr))); 548 _FDT((fdt_setprop_string(fdt, offset, "status", "okay"))); 549 _FDT((fdt_setprop(fdt, offset, "64-bit", NULL, 0))); 550 551 if (env->spr_cb[SPR_PURR].oea_read) { 552 _FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0))); 553 } 554 555 if (env->mmu_model & POWERPC_MMU_1TSEG) { 556 _FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes", 557 segs, sizeof(segs)))); 558 } 559 560 /* Advertise VSX (vector extensions) if available 561 * 1 == VMX / Altivec available 562 * 2 == VSX available 563 * 564 * Only CPUs for which we create core types in spapr_cpu_core.c 565 * are possible, and all of those have VMX */ 566 if (spapr_get_cap(spapr, SPAPR_CAP_VSX) != 0) { 567 _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 2))); 568 } else { 569 _FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", 1))); 570 } 571 572 /* Advertise DFP (Decimal Floating Point) if available 573 * 0 / no property == no DFP 574 * 1 == DFP available */ 575 if (spapr_get_cap(spapr, SPAPR_CAP_DFP) != 0) { 576 _FDT((fdt_setprop_cell(fdt, offset, "ibm,dfp", 1))); 577 } 578 579 page_sizes_prop_size = ppc_create_page_sizes_prop(env, page_sizes_prop, 580 sizeof(page_sizes_prop)); 581 if (page_sizes_prop_size) { 582 _FDT((fdt_setprop(fdt, offset, "ibm,segment-page-sizes", 583 page_sizes_prop, page_sizes_prop_size))); 584 } 585 586 spapr_populate_pa_features(spapr, cpu, fdt, offset, false); 587 588 _FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id", 589 cs->cpu_index / vcpus_per_socket))); 590 591 _FDT((fdt_setprop(fdt, offset, "ibm,pft-size", 592 pft_size_prop, sizeof(pft_size_prop)))); 593 594 if (nb_numa_nodes > 1) { 595 _FDT(spapr_fixup_cpu_numa_dt(fdt, offset, cpu)); 596 } 597 598 _FDT(spapr_fixup_cpu_smt_dt(fdt, offset, cpu, compat_smt)); 599 600 if (pcc->radix_page_info) { 601 for (i = 0; i < pcc->radix_page_info->count; i++) { 602 radix_AP_encodings[i] = 603 cpu_to_be32(pcc->radix_page_info->entries[i]); 604 } 605 _FDT((fdt_setprop(fdt, offset, "ibm,processor-radix-AP-encodings", 606 radix_AP_encodings, 607 pcc->radix_page_info->count * 608 sizeof(radix_AP_encodings[0])))); 609 } 610 } 611 612 static void spapr_populate_cpus_dt_node(void *fdt, sPAPRMachineState *spapr) 613 { 614 CPUState *cs; 615 int cpus_offset; 616 char *nodename; 617 int smt = kvmppc_smt_threads(); 618 619 cpus_offset = fdt_add_subnode(fdt, 0, "cpus"); 620 _FDT(cpus_offset); 621 _FDT((fdt_setprop_cell(fdt, cpus_offset, "#address-cells", 0x1))); 622 _FDT((fdt_setprop_cell(fdt, cpus_offset, "#size-cells", 0x0))); 623 624 /* 625 * We walk the CPUs in reverse order to ensure that CPU DT nodes 626 * created by fdt_add_subnode() end up in the right order in FDT 627 * for the guest kernel the enumerate the CPUs correctly. 628 */ 629 CPU_FOREACH_REVERSE(cs) { 630 PowerPCCPU *cpu = POWERPC_CPU(cs); 631 int index = spapr_vcpu_id(cpu); 632 DeviceClass *dc = DEVICE_GET_CLASS(cs); 633 int offset; 634 635 if ((index % smt) != 0) { 636 continue; 637 } 638 639 nodename = g_strdup_printf("%s@%x", dc->fw_name, index); 640 offset = fdt_add_subnode(fdt, cpus_offset, nodename); 641 g_free(nodename); 642 _FDT(offset); 643 spapr_populate_cpu_dt(cs, fdt, offset, spapr); 644 } 645 646 } 647 648 static uint32_t spapr_pc_dimm_node(MemoryDeviceInfoList *list, ram_addr_t addr) 649 { 650 MemoryDeviceInfoList *info; 651 652 for (info = list; info; info = info->next) { 653 MemoryDeviceInfo *value = info->value; 654 655 if (value && value->type == MEMORY_DEVICE_INFO_KIND_DIMM) { 656 PCDIMMDeviceInfo *pcdimm_info = value->u.dimm.data; 657 658 if (pcdimm_info->addr >= addr && 659 addr < (pcdimm_info->addr + pcdimm_info->size)) { 660 return pcdimm_info->node; 661 } 662 } 663 } 664 665 return -1; 666 } 667 668 /* 669 * Adds ibm,dynamic-reconfiguration-memory node. 670 * Refer to docs/specs/ppc-spapr-hotplug.txt for the documentation 671 * of this device tree node. 672 */ 673 static int spapr_populate_drconf_memory(sPAPRMachineState *spapr, void *fdt) 674 { 675 MachineState *machine = MACHINE(spapr); 676 int ret, i, offset; 677 uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE; 678 uint32_t prop_lmb_size[] = {0, cpu_to_be32(lmb_size)}; 679 uint32_t hotplug_lmb_start = spapr->hotplug_memory.base / lmb_size; 680 uint32_t nr_lmbs = (spapr->hotplug_memory.base + 681 memory_region_size(&spapr->hotplug_memory.mr)) / 682 lmb_size; 683 uint32_t *int_buf, *cur_index, buf_len; 684 int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1; 685 MemoryDeviceInfoList *dimms = NULL; 686 687 /* 688 * Don't create the node if there is no hotpluggable memory 689 */ 690 if (machine->ram_size == machine->maxram_size) { 691 return 0; 692 } 693 694 /* 695 * Allocate enough buffer size to fit in ibm,dynamic-memory 696 * or ibm,associativity-lookup-arrays 697 */ 698 buf_len = MAX(nr_lmbs * SPAPR_DR_LMB_LIST_ENTRY_SIZE + 1, nr_nodes * 4 + 2) 699 * sizeof(uint32_t); 700 cur_index = int_buf = g_malloc0(buf_len); 701 702 offset = fdt_add_subnode(fdt, 0, "ibm,dynamic-reconfiguration-memory"); 703 704 ret = fdt_setprop(fdt, offset, "ibm,lmb-size", prop_lmb_size, 705 sizeof(prop_lmb_size)); 706 if (ret < 0) { 707 goto out; 708 } 709 710 ret = fdt_setprop_cell(fdt, offset, "ibm,memory-flags-mask", 0xff); 711 if (ret < 0) { 712 goto out; 713 } 714 715 ret = fdt_setprop_cell(fdt, offset, "ibm,memory-preservation-time", 0x0); 716 if (ret < 0) { 717 goto out; 718 } 719 720 if (hotplug_lmb_start) { 721 MemoryDeviceInfoList **prev = &dimms; 722 qmp_pc_dimm_device_list(qdev_get_machine(), &prev); 723 } 724 725 /* ibm,dynamic-memory */ 726 int_buf[0] = cpu_to_be32(nr_lmbs); 727 cur_index++; 728 for (i = 0; i < nr_lmbs; i++) { 729 uint64_t addr = i * lmb_size; 730 uint32_t *dynamic_memory = cur_index; 731 732 if (i >= hotplug_lmb_start) { 733 sPAPRDRConnector *drc; 734 735 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, i); 736 g_assert(drc); 737 738 dynamic_memory[0] = cpu_to_be32(addr >> 32); 739 dynamic_memory[1] = cpu_to_be32(addr & 0xffffffff); 740 dynamic_memory[2] = cpu_to_be32(spapr_drc_index(drc)); 741 dynamic_memory[3] = cpu_to_be32(0); /* reserved */ 742 dynamic_memory[4] = cpu_to_be32(spapr_pc_dimm_node(dimms, addr)); 743 if (memory_region_present(get_system_memory(), addr)) { 744 dynamic_memory[5] = cpu_to_be32(SPAPR_LMB_FLAGS_ASSIGNED); 745 } else { 746 dynamic_memory[5] = cpu_to_be32(0); 747 } 748 } else { 749 /* 750 * LMB information for RMA, boot time RAM and gap b/n RAM and 751 * hotplug memory region -- all these are marked as reserved 752 * and as having no valid DRC. 753 */ 754 dynamic_memory[0] = cpu_to_be32(addr >> 32); 755 dynamic_memory[1] = cpu_to_be32(addr & 0xffffffff); 756 dynamic_memory[2] = cpu_to_be32(0); 757 dynamic_memory[3] = cpu_to_be32(0); /* reserved */ 758 dynamic_memory[4] = cpu_to_be32(-1); 759 dynamic_memory[5] = cpu_to_be32(SPAPR_LMB_FLAGS_RESERVED | 760 SPAPR_LMB_FLAGS_DRC_INVALID); 761 } 762 763 cur_index += SPAPR_DR_LMB_LIST_ENTRY_SIZE; 764 } 765 qapi_free_MemoryDeviceInfoList(dimms); 766 ret = fdt_setprop(fdt, offset, "ibm,dynamic-memory", int_buf, buf_len); 767 if (ret < 0) { 768 goto out; 769 } 770 771 /* ibm,associativity-lookup-arrays */ 772 cur_index = int_buf; 773 int_buf[0] = cpu_to_be32(nr_nodes); 774 int_buf[1] = cpu_to_be32(4); /* Number of entries per associativity list */ 775 cur_index += 2; 776 for (i = 0; i < nr_nodes; i++) { 777 uint32_t associativity[] = { 778 cpu_to_be32(0x0), 779 cpu_to_be32(0x0), 780 cpu_to_be32(0x0), 781 cpu_to_be32(i) 782 }; 783 memcpy(cur_index, associativity, sizeof(associativity)); 784 cur_index += 4; 785 } 786 ret = fdt_setprop(fdt, offset, "ibm,associativity-lookup-arrays", int_buf, 787 (cur_index - int_buf) * sizeof(uint32_t)); 788 out: 789 g_free(int_buf); 790 return ret; 791 } 792 793 static int spapr_dt_cas_updates(sPAPRMachineState *spapr, void *fdt, 794 sPAPROptionVector *ov5_updates) 795 { 796 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr); 797 int ret = 0, offset; 798 799 /* Generate ibm,dynamic-reconfiguration-memory node if required */ 800 if (spapr_ovec_test(ov5_updates, OV5_DRCONF_MEMORY)) { 801 g_assert(smc->dr_lmb_enabled); 802 ret = spapr_populate_drconf_memory(spapr, fdt); 803 if (ret) { 804 goto out; 805 } 806 } 807 808 offset = fdt_path_offset(fdt, "/chosen"); 809 if (offset < 0) { 810 offset = fdt_add_subnode(fdt, 0, "chosen"); 811 if (offset < 0) { 812 return offset; 813 } 814 } 815 ret = spapr_ovec_populate_dt(fdt, offset, spapr->ov5_cas, 816 "ibm,architecture-vec-5"); 817 818 out: 819 return ret; 820 } 821 822 static bool spapr_hotplugged_dev_before_cas(void) 823 { 824 Object *drc_container, *obj; 825 ObjectProperty *prop; 826 ObjectPropertyIterator iter; 827 828 drc_container = container_get(object_get_root(), "/dr-connector"); 829 object_property_iter_init(&iter, drc_container); 830 while ((prop = object_property_iter_next(&iter))) { 831 if (!strstart(prop->type, "link<", NULL)) { 832 continue; 833 } 834 obj = object_property_get_link(drc_container, prop->name, NULL); 835 if (spapr_drc_needed(obj)) { 836 return true; 837 } 838 } 839 return false; 840 } 841 842 int spapr_h_cas_compose_response(sPAPRMachineState *spapr, 843 target_ulong addr, target_ulong size, 844 sPAPROptionVector *ov5_updates) 845 { 846 void *fdt, *fdt_skel; 847 sPAPRDeviceTreeUpdateHeader hdr = { .version_id = 1 }; 848 849 if (spapr_hotplugged_dev_before_cas()) { 850 return 1; 851 } 852 853 if (size < sizeof(hdr) || size > FW_MAX_SIZE) { 854 error_report("SLOF provided an unexpected CAS buffer size " 855 TARGET_FMT_lu " (min: %zu, max: %u)", 856 size, sizeof(hdr), FW_MAX_SIZE); 857 exit(EXIT_FAILURE); 858 } 859 860 size -= sizeof(hdr); 861 862 /* Create skeleton */ 863 fdt_skel = g_malloc0(size); 864 _FDT((fdt_create(fdt_skel, size))); 865 _FDT((fdt_begin_node(fdt_skel, ""))); 866 _FDT((fdt_end_node(fdt_skel))); 867 _FDT((fdt_finish(fdt_skel))); 868 fdt = g_malloc0(size); 869 _FDT((fdt_open_into(fdt_skel, fdt, size))); 870 g_free(fdt_skel); 871 872 /* Fixup cpu nodes */ 873 _FDT((spapr_fixup_cpu_dt(fdt, spapr))); 874 875 if (spapr_dt_cas_updates(spapr, fdt, ov5_updates)) { 876 return -1; 877 } 878 879 /* Pack resulting tree */ 880 _FDT((fdt_pack(fdt))); 881 882 if (fdt_totalsize(fdt) + sizeof(hdr) > size) { 883 trace_spapr_cas_failed(size); 884 return -1; 885 } 886 887 cpu_physical_memory_write(addr, &hdr, sizeof(hdr)); 888 cpu_physical_memory_write(addr + sizeof(hdr), fdt, fdt_totalsize(fdt)); 889 trace_spapr_cas_continue(fdt_totalsize(fdt) + sizeof(hdr)); 890 g_free(fdt); 891 892 return 0; 893 } 894 895 static void spapr_dt_rtas(sPAPRMachineState *spapr, void *fdt) 896 { 897 int rtas; 898 GString *hypertas = g_string_sized_new(256); 899 GString *qemu_hypertas = g_string_sized_new(256); 900 uint32_t refpoints[] = { cpu_to_be32(0x4), cpu_to_be32(0x4) }; 901 uint64_t max_hotplug_addr = spapr->hotplug_memory.base + 902 memory_region_size(&spapr->hotplug_memory.mr); 903 uint32_t lrdr_capacity[] = { 904 cpu_to_be32(max_hotplug_addr >> 32), 905 cpu_to_be32(max_hotplug_addr & 0xffffffff), 906 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE), 907 cpu_to_be32(max_cpus / smp_threads), 908 }; 909 910 _FDT(rtas = fdt_add_subnode(fdt, 0, "rtas")); 911 912 /* hypertas */ 913 add_str(hypertas, "hcall-pft"); 914 add_str(hypertas, "hcall-term"); 915 add_str(hypertas, "hcall-dabr"); 916 add_str(hypertas, "hcall-interrupt"); 917 add_str(hypertas, "hcall-tce"); 918 add_str(hypertas, "hcall-vio"); 919 add_str(hypertas, "hcall-splpar"); 920 add_str(hypertas, "hcall-bulk"); 921 add_str(hypertas, "hcall-set-mode"); 922 add_str(hypertas, "hcall-sprg0"); 923 add_str(hypertas, "hcall-copy"); 924 add_str(hypertas, "hcall-debug"); 925 add_str(qemu_hypertas, "hcall-memop1"); 926 927 if (!kvm_enabled() || kvmppc_spapr_use_multitce()) { 928 add_str(hypertas, "hcall-multi-tce"); 929 } 930 931 if (spapr->resize_hpt != SPAPR_RESIZE_HPT_DISABLED) { 932 add_str(hypertas, "hcall-hpt-resize"); 933 } 934 935 _FDT(fdt_setprop(fdt, rtas, "ibm,hypertas-functions", 936 hypertas->str, hypertas->len)); 937 g_string_free(hypertas, TRUE); 938 _FDT(fdt_setprop(fdt, rtas, "qemu,hypertas-functions", 939 qemu_hypertas->str, qemu_hypertas->len)); 940 g_string_free(qemu_hypertas, TRUE); 941 942 _FDT(fdt_setprop(fdt, rtas, "ibm,associativity-reference-points", 943 refpoints, sizeof(refpoints))); 944 945 _FDT(fdt_setprop_cell(fdt, rtas, "rtas-error-log-max", 946 RTAS_ERROR_LOG_MAX)); 947 _FDT(fdt_setprop_cell(fdt, rtas, "rtas-event-scan-rate", 948 RTAS_EVENT_SCAN_RATE)); 949 950 g_assert(msi_nonbroken); 951 _FDT(fdt_setprop(fdt, rtas, "ibm,change-msix-capable", NULL, 0)); 952 953 /* 954 * According to PAPR, rtas ibm,os-term does not guarantee a return 955 * back to the guest cpu. 956 * 957 * While an additional ibm,extended-os-term property indicates 958 * that rtas call return will always occur. Set this property. 959 */ 960 _FDT(fdt_setprop(fdt, rtas, "ibm,extended-os-term", NULL, 0)); 961 962 _FDT(fdt_setprop(fdt, rtas, "ibm,lrdr-capacity", 963 lrdr_capacity, sizeof(lrdr_capacity))); 964 965 spapr_dt_rtas_tokens(fdt, rtas); 966 } 967 968 /* Prepare ibm,arch-vec-5-platform-support, which indicates the MMU features 969 * that the guest may request and thus the valid values for bytes 24..26 of 970 * option vector 5: */ 971 static void spapr_dt_ov5_platform_support(void *fdt, int chosen) 972 { 973 PowerPCCPU *first_ppc_cpu = POWERPC_CPU(first_cpu); 974 975 char val[2 * 4] = { 976 23, 0x00, /* Xive mode, filled in below. */ 977 24, 0x00, /* Hash/Radix, filled in below. */ 978 25, 0x00, /* Hash options: Segment Tables == no, GTSE == no. */ 979 26, 0x40, /* Radix options: GTSE == yes. */ 980 }; 981 982 if (!ppc_check_compat(first_ppc_cpu, CPU_POWERPC_LOGICAL_3_00, 0, 983 first_ppc_cpu->compat_pvr)) { 984 /* If we're in a pre POWER9 compat mode then the guest should do hash */ 985 val[3] = 0x00; /* Hash */ 986 } else if (kvm_enabled()) { 987 if (kvmppc_has_cap_mmu_radix() && kvmppc_has_cap_mmu_hash_v3()) { 988 val[3] = 0x80; /* OV5_MMU_BOTH */ 989 } else if (kvmppc_has_cap_mmu_radix()) { 990 val[3] = 0x40; /* OV5_MMU_RADIX_300 */ 991 } else { 992 val[3] = 0x00; /* Hash */ 993 } 994 } else { 995 /* V3 MMU supports both hash and radix in tcg (with dynamic switching) */ 996 val[3] = 0xC0; 997 } 998 _FDT(fdt_setprop(fdt, chosen, "ibm,arch-vec-5-platform-support", 999 val, sizeof(val))); 1000 } 1001 1002 static void spapr_dt_chosen(sPAPRMachineState *spapr, void *fdt) 1003 { 1004 MachineState *machine = MACHINE(spapr); 1005 int chosen; 1006 const char *boot_device = machine->boot_order; 1007 char *stdout_path = spapr_vio_stdout_path(spapr->vio_bus); 1008 size_t cb = 0; 1009 char *bootlist = get_boot_devices_list(&cb, true); 1010 1011 _FDT(chosen = fdt_add_subnode(fdt, 0, "chosen")); 1012 1013 _FDT(fdt_setprop_string(fdt, chosen, "bootargs", machine->kernel_cmdline)); 1014 _FDT(fdt_setprop_cell(fdt, chosen, "linux,initrd-start", 1015 spapr->initrd_base)); 1016 _FDT(fdt_setprop_cell(fdt, chosen, "linux,initrd-end", 1017 spapr->initrd_base + spapr->initrd_size)); 1018 1019 if (spapr->kernel_size) { 1020 uint64_t kprop[2] = { cpu_to_be64(KERNEL_LOAD_ADDR), 1021 cpu_to_be64(spapr->kernel_size) }; 1022 1023 _FDT(fdt_setprop(fdt, chosen, "qemu,boot-kernel", 1024 &kprop, sizeof(kprop))); 1025 if (spapr->kernel_le) { 1026 _FDT(fdt_setprop(fdt, chosen, "qemu,boot-kernel-le", NULL, 0)); 1027 } 1028 } 1029 if (boot_menu) { 1030 _FDT((fdt_setprop_cell(fdt, chosen, "qemu,boot-menu", boot_menu))); 1031 } 1032 _FDT(fdt_setprop_cell(fdt, chosen, "qemu,graphic-width", graphic_width)); 1033 _FDT(fdt_setprop_cell(fdt, chosen, "qemu,graphic-height", graphic_height)); 1034 _FDT(fdt_setprop_cell(fdt, chosen, "qemu,graphic-depth", graphic_depth)); 1035 1036 if (cb && bootlist) { 1037 int i; 1038 1039 for (i = 0; i < cb; i++) { 1040 if (bootlist[i] == '\n') { 1041 bootlist[i] = ' '; 1042 } 1043 } 1044 _FDT(fdt_setprop_string(fdt, chosen, "qemu,boot-list", bootlist)); 1045 } 1046 1047 if (boot_device && strlen(boot_device)) { 1048 _FDT(fdt_setprop_string(fdt, chosen, "qemu,boot-device", boot_device)); 1049 } 1050 1051 if (!spapr->has_graphics && stdout_path) { 1052 _FDT(fdt_setprop_string(fdt, chosen, "linux,stdout-path", stdout_path)); 1053 } 1054 1055 spapr_dt_ov5_platform_support(fdt, chosen); 1056 1057 g_free(stdout_path); 1058 g_free(bootlist); 1059 } 1060 1061 static void spapr_dt_hypervisor(sPAPRMachineState *spapr, void *fdt) 1062 { 1063 /* The /hypervisor node isn't in PAPR - this is a hack to allow PR 1064 * KVM to work under pHyp with some guest co-operation */ 1065 int hypervisor; 1066 uint8_t hypercall[16]; 1067 1068 _FDT(hypervisor = fdt_add_subnode(fdt, 0, "hypervisor")); 1069 /* indicate KVM hypercall interface */ 1070 _FDT(fdt_setprop_string(fdt, hypervisor, "compatible", "linux,kvm")); 1071 if (kvmppc_has_cap_fixup_hcalls()) { 1072 /* 1073 * Older KVM versions with older guest kernels were broken 1074 * with the magic page, don't allow the guest to map it. 1075 */ 1076 if (!kvmppc_get_hypercall(first_cpu->env_ptr, hypercall, 1077 sizeof(hypercall))) { 1078 _FDT(fdt_setprop(fdt, hypervisor, "hcall-instructions", 1079 hypercall, sizeof(hypercall))); 1080 } 1081 } 1082 } 1083 1084 static void *spapr_build_fdt(sPAPRMachineState *spapr, 1085 hwaddr rtas_addr, 1086 hwaddr rtas_size) 1087 { 1088 MachineState *machine = MACHINE(spapr); 1089 MachineClass *mc = MACHINE_GET_CLASS(machine); 1090 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); 1091 int ret; 1092 void *fdt; 1093 sPAPRPHBState *phb; 1094 char *buf; 1095 1096 fdt = g_malloc0(FDT_MAX_SIZE); 1097 _FDT((fdt_create_empty_tree(fdt, FDT_MAX_SIZE))); 1098 1099 /* Root node */ 1100 _FDT(fdt_setprop_string(fdt, 0, "device_type", "chrp")); 1101 _FDT(fdt_setprop_string(fdt, 0, "model", "IBM pSeries (emulated by qemu)")); 1102 _FDT(fdt_setprop_string(fdt, 0, "compatible", "qemu,pseries")); 1103 1104 /* 1105 * Add info to guest to indentify which host is it being run on 1106 * and what is the uuid of the guest 1107 */ 1108 if (kvmppc_get_host_model(&buf)) { 1109 _FDT(fdt_setprop_string(fdt, 0, "host-model", buf)); 1110 g_free(buf); 1111 } 1112 if (kvmppc_get_host_serial(&buf)) { 1113 _FDT(fdt_setprop_string(fdt, 0, "host-serial", buf)); 1114 g_free(buf); 1115 } 1116 1117 buf = qemu_uuid_unparse_strdup(&qemu_uuid); 1118 1119 _FDT(fdt_setprop_string(fdt, 0, "vm,uuid", buf)); 1120 if (qemu_uuid_set) { 1121 _FDT(fdt_setprop_string(fdt, 0, "system-id", buf)); 1122 } 1123 g_free(buf); 1124 1125 if (qemu_get_vm_name()) { 1126 _FDT(fdt_setprop_string(fdt, 0, "ibm,partition-name", 1127 qemu_get_vm_name())); 1128 } 1129 1130 _FDT(fdt_setprop_cell(fdt, 0, "#address-cells", 2)); 1131 _FDT(fdt_setprop_cell(fdt, 0, "#size-cells", 2)); 1132 1133 /* /interrupt controller */ 1134 spapr_dt_xics(xics_max_server_number(), fdt, PHANDLE_XICP); 1135 1136 ret = spapr_populate_memory(spapr, fdt); 1137 if (ret < 0) { 1138 error_report("couldn't setup memory nodes in fdt"); 1139 exit(1); 1140 } 1141 1142 /* /vdevice */ 1143 spapr_dt_vdevice(spapr->vio_bus, fdt); 1144 1145 if (object_resolve_path_type("", TYPE_SPAPR_RNG, NULL)) { 1146 ret = spapr_rng_populate_dt(fdt); 1147 if (ret < 0) { 1148 error_report("could not set up rng device in the fdt"); 1149 exit(1); 1150 } 1151 } 1152 1153 QLIST_FOREACH(phb, &spapr->phbs, list) { 1154 ret = spapr_populate_pci_dt(phb, PHANDLE_XICP, fdt); 1155 if (ret < 0) { 1156 error_report("couldn't setup PCI devices in fdt"); 1157 exit(1); 1158 } 1159 } 1160 1161 /* cpus */ 1162 spapr_populate_cpus_dt_node(fdt, spapr); 1163 1164 if (smc->dr_lmb_enabled) { 1165 _FDT(spapr_drc_populate_dt(fdt, 0, NULL, SPAPR_DR_CONNECTOR_TYPE_LMB)); 1166 } 1167 1168 if (mc->has_hotpluggable_cpus) { 1169 int offset = fdt_path_offset(fdt, "/cpus"); 1170 ret = spapr_drc_populate_dt(fdt, offset, NULL, 1171 SPAPR_DR_CONNECTOR_TYPE_CPU); 1172 if (ret < 0) { 1173 error_report("Couldn't set up CPU DR device tree properties"); 1174 exit(1); 1175 } 1176 } 1177 1178 /* /event-sources */ 1179 spapr_dt_events(spapr, fdt); 1180 1181 /* /rtas */ 1182 spapr_dt_rtas(spapr, fdt); 1183 1184 /* /chosen */ 1185 spapr_dt_chosen(spapr, fdt); 1186 1187 /* /hypervisor */ 1188 if (kvm_enabled()) { 1189 spapr_dt_hypervisor(spapr, fdt); 1190 } 1191 1192 /* Build memory reserve map */ 1193 if (spapr->kernel_size) { 1194 _FDT((fdt_add_mem_rsv(fdt, KERNEL_LOAD_ADDR, spapr->kernel_size))); 1195 } 1196 if (spapr->initrd_size) { 1197 _FDT((fdt_add_mem_rsv(fdt, spapr->initrd_base, spapr->initrd_size))); 1198 } 1199 1200 /* ibm,client-architecture-support updates */ 1201 ret = spapr_dt_cas_updates(spapr, fdt, spapr->ov5_cas); 1202 if (ret < 0) { 1203 error_report("couldn't setup CAS properties fdt"); 1204 exit(1); 1205 } 1206 1207 return fdt; 1208 } 1209 1210 static uint64_t translate_kernel_address(void *opaque, uint64_t addr) 1211 { 1212 return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; 1213 } 1214 1215 static void emulate_spapr_hypercall(PPCVirtualHypervisor *vhyp, 1216 PowerPCCPU *cpu) 1217 { 1218 CPUPPCState *env = &cpu->env; 1219 1220 /* The TCG path should also be holding the BQL at this point */ 1221 g_assert(qemu_mutex_iothread_locked()); 1222 1223 if (msr_pr) { 1224 hcall_dprintf("Hypercall made with MSR[PR]=1\n"); 1225 env->gpr[3] = H_PRIVILEGE; 1226 } else { 1227 env->gpr[3] = spapr_hypercall(cpu, env->gpr[3], &env->gpr[4]); 1228 } 1229 } 1230 1231 static uint64_t spapr_get_patbe(PPCVirtualHypervisor *vhyp) 1232 { 1233 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1234 1235 return spapr->patb_entry; 1236 } 1237 1238 #define HPTE(_table, _i) (void *)(((uint64_t *)(_table)) + ((_i) * 2)) 1239 #define HPTE_VALID(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_VALID) 1240 #define HPTE_DIRTY(_hpte) (tswap64(*((uint64_t *)(_hpte))) & HPTE64_V_HPTE_DIRTY) 1241 #define CLEAN_HPTE(_hpte) ((*(uint64_t *)(_hpte)) &= tswap64(~HPTE64_V_HPTE_DIRTY)) 1242 #define DIRTY_HPTE(_hpte) ((*(uint64_t *)(_hpte)) |= tswap64(HPTE64_V_HPTE_DIRTY)) 1243 1244 /* 1245 * Get the fd to access the kernel htab, re-opening it if necessary 1246 */ 1247 static int get_htab_fd(sPAPRMachineState *spapr) 1248 { 1249 Error *local_err = NULL; 1250 1251 if (spapr->htab_fd >= 0) { 1252 return spapr->htab_fd; 1253 } 1254 1255 spapr->htab_fd = kvmppc_get_htab_fd(false, 0, &local_err); 1256 if (spapr->htab_fd < 0) { 1257 error_report_err(local_err); 1258 } 1259 1260 return spapr->htab_fd; 1261 } 1262 1263 void close_htab_fd(sPAPRMachineState *spapr) 1264 { 1265 if (spapr->htab_fd >= 0) { 1266 close(spapr->htab_fd); 1267 } 1268 spapr->htab_fd = -1; 1269 } 1270 1271 static hwaddr spapr_hpt_mask(PPCVirtualHypervisor *vhyp) 1272 { 1273 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1274 1275 return HTAB_SIZE(spapr) / HASH_PTEG_SIZE_64 - 1; 1276 } 1277 1278 static target_ulong spapr_encode_hpt_for_kvm_pr(PPCVirtualHypervisor *vhyp) 1279 { 1280 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1281 1282 assert(kvm_enabled()); 1283 1284 if (!spapr->htab) { 1285 return 0; 1286 } 1287 1288 return (target_ulong)(uintptr_t)spapr->htab | (spapr->htab_shift - 18); 1289 } 1290 1291 static const ppc_hash_pte64_t *spapr_map_hptes(PPCVirtualHypervisor *vhyp, 1292 hwaddr ptex, int n) 1293 { 1294 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1295 hwaddr pte_offset = ptex * HASH_PTE_SIZE_64; 1296 1297 if (!spapr->htab) { 1298 /* 1299 * HTAB is controlled by KVM. Fetch into temporary buffer 1300 */ 1301 ppc_hash_pte64_t *hptes = g_malloc(n * HASH_PTE_SIZE_64); 1302 kvmppc_read_hptes(hptes, ptex, n); 1303 return hptes; 1304 } 1305 1306 /* 1307 * HTAB is controlled by QEMU. Just point to the internally 1308 * accessible PTEG. 1309 */ 1310 return (const ppc_hash_pte64_t *)(spapr->htab + pte_offset); 1311 } 1312 1313 static void spapr_unmap_hptes(PPCVirtualHypervisor *vhyp, 1314 const ppc_hash_pte64_t *hptes, 1315 hwaddr ptex, int n) 1316 { 1317 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1318 1319 if (!spapr->htab) { 1320 g_free((void *)hptes); 1321 } 1322 1323 /* Nothing to do for qemu managed HPT */ 1324 } 1325 1326 static void spapr_store_hpte(PPCVirtualHypervisor *vhyp, hwaddr ptex, 1327 uint64_t pte0, uint64_t pte1) 1328 { 1329 sPAPRMachineState *spapr = SPAPR_MACHINE(vhyp); 1330 hwaddr offset = ptex * HASH_PTE_SIZE_64; 1331 1332 if (!spapr->htab) { 1333 kvmppc_write_hpte(ptex, pte0, pte1); 1334 } else { 1335 stq_p(spapr->htab + offset, pte0); 1336 stq_p(spapr->htab + offset + HASH_PTE_SIZE_64 / 2, pte1); 1337 } 1338 } 1339 1340 int spapr_hpt_shift_for_ramsize(uint64_t ramsize) 1341 { 1342 int shift; 1343 1344 /* We aim for a hash table of size 1/128 the size of RAM (rounded 1345 * up). The PAPR recommendation is actually 1/64 of RAM size, but 1346 * that's much more than is needed for Linux guests */ 1347 shift = ctz64(pow2ceil(ramsize)) - 7; 1348 shift = MAX(shift, 18); /* Minimum architected size */ 1349 shift = MIN(shift, 46); /* Maximum architected size */ 1350 return shift; 1351 } 1352 1353 void spapr_free_hpt(sPAPRMachineState *spapr) 1354 { 1355 g_free(spapr->htab); 1356 spapr->htab = NULL; 1357 spapr->htab_shift = 0; 1358 close_htab_fd(spapr); 1359 } 1360 1361 void spapr_reallocate_hpt(sPAPRMachineState *spapr, int shift, 1362 Error **errp) 1363 { 1364 long rc; 1365 1366 /* Clean up any HPT info from a previous boot */ 1367 spapr_free_hpt(spapr); 1368 1369 rc = kvmppc_reset_htab(shift); 1370 if (rc < 0) { 1371 /* kernel-side HPT needed, but couldn't allocate one */ 1372 error_setg_errno(errp, errno, 1373 "Failed to allocate KVM HPT of order %d (try smaller maxmem?)", 1374 shift); 1375 /* This is almost certainly fatal, but if the caller really 1376 * wants to carry on with shift == 0, it's welcome to try */ 1377 } else if (rc > 0) { 1378 /* kernel-side HPT allocated */ 1379 if (rc != shift) { 1380 error_setg(errp, 1381 "Requested order %d HPT, but kernel allocated order %ld (try smaller maxmem?)", 1382 shift, rc); 1383 } 1384 1385 spapr->htab_shift = shift; 1386 spapr->htab = NULL; 1387 } else { 1388 /* kernel-side HPT not needed, allocate in userspace instead */ 1389 size_t size = 1ULL << shift; 1390 int i; 1391 1392 spapr->htab = qemu_memalign(size, size); 1393 if (!spapr->htab) { 1394 error_setg_errno(errp, errno, 1395 "Could not allocate HPT of order %d", shift); 1396 return; 1397 } 1398 1399 memset(spapr->htab, 0, size); 1400 spapr->htab_shift = shift; 1401 1402 for (i = 0; i < size / HASH_PTE_SIZE_64; i++) { 1403 DIRTY_HPTE(HPTE(spapr->htab, i)); 1404 } 1405 } 1406 /* We're setting up a hash table, so that means we're not radix */ 1407 spapr->patb_entry = 0; 1408 } 1409 1410 void spapr_setup_hpt_and_vrma(sPAPRMachineState *spapr) 1411 { 1412 int hpt_shift; 1413 1414 if ((spapr->resize_hpt == SPAPR_RESIZE_HPT_DISABLED) 1415 || (spapr->cas_reboot 1416 && !spapr_ovec_test(spapr->ov5_cas, OV5_HPT_RESIZE))) { 1417 hpt_shift = spapr_hpt_shift_for_ramsize(MACHINE(spapr)->maxram_size); 1418 } else { 1419 uint64_t current_ram_size; 1420 1421 current_ram_size = MACHINE(spapr)->ram_size + get_plugged_memory_size(); 1422 hpt_shift = spapr_hpt_shift_for_ramsize(current_ram_size); 1423 } 1424 spapr_reallocate_hpt(spapr, hpt_shift, &error_fatal); 1425 1426 if (spapr->vrma_adjust) { 1427 spapr->rma_size = kvmppc_rma_size(spapr_node0_size(MACHINE(spapr)), 1428 spapr->htab_shift); 1429 } 1430 } 1431 1432 static void find_unknown_sysbus_device(SysBusDevice *sbdev, void *opaque) 1433 { 1434 bool matched = false; 1435 1436 if (object_dynamic_cast(OBJECT(sbdev), TYPE_SPAPR_PCI_HOST_BRIDGE)) { 1437 matched = true; 1438 } 1439 1440 if (!matched) { 1441 error_report("Device %s is not supported by this machine yet.", 1442 qdev_fw_name(DEVICE(sbdev))); 1443 exit(1); 1444 } 1445 } 1446 1447 static int spapr_reset_drcs(Object *child, void *opaque) 1448 { 1449 sPAPRDRConnector *drc = 1450 (sPAPRDRConnector *) object_dynamic_cast(child, 1451 TYPE_SPAPR_DR_CONNECTOR); 1452 1453 if (drc) { 1454 spapr_drc_reset(drc); 1455 } 1456 1457 return 0; 1458 } 1459 1460 static void spapr_machine_reset(void) 1461 { 1462 MachineState *machine = MACHINE(qdev_get_machine()); 1463 sPAPRMachineState *spapr = SPAPR_MACHINE(machine); 1464 PowerPCCPU *first_ppc_cpu; 1465 uint32_t rtas_limit; 1466 hwaddr rtas_addr, fdt_addr; 1467 void *fdt; 1468 int rc; 1469 1470 /* Check for unknown sysbus devices */ 1471 foreach_dynamic_sysbus_device(find_unknown_sysbus_device, NULL); 1472 1473 spapr_caps_reset(spapr); 1474 1475 first_ppc_cpu = POWERPC_CPU(first_cpu); 1476 if (kvm_enabled() && kvmppc_has_cap_mmu_radix() && 1477 ppc_check_compat(first_ppc_cpu, CPU_POWERPC_LOGICAL_3_00, 0, 1478 spapr->max_compat_pvr)) { 1479 /* If using KVM with radix mode available, VCPUs can be started 1480 * without a HPT because KVM will start them in radix mode. 1481 * Set the GR bit in PATB so that we know there is no HPT. */ 1482 spapr->patb_entry = PATBE1_GR; 1483 } else { 1484 spapr_setup_hpt_and_vrma(spapr); 1485 } 1486 1487 /* if this reset wasn't generated by CAS, we should reset our 1488 * negotiated options and start from scratch */ 1489 if (!spapr->cas_reboot) { 1490 spapr_ovec_cleanup(spapr->ov5_cas); 1491 spapr->ov5_cas = spapr_ovec_new(); 1492 1493 ppc_set_compat(first_ppc_cpu, spapr->max_compat_pvr, &error_fatal); 1494 } 1495 1496 qemu_devices_reset(); 1497 1498 /* DRC reset may cause a device to be unplugged. This will cause troubles 1499 * if this device is used by another device (eg, a running vhost backend 1500 * will crash QEMU if the DIMM holding the vring goes away). To avoid such 1501 * situations, we reset DRCs after all devices have been reset. 1502 */ 1503 object_child_foreach_recursive(object_get_root(), spapr_reset_drcs, NULL); 1504 1505 spapr_clear_pending_events(spapr); 1506 1507 /* 1508 * We place the device tree and RTAS just below either the top of the RMA, 1509 * or just below 2GB, whichever is lowere, so that it can be 1510 * processed with 32-bit real mode code if necessary 1511 */ 1512 rtas_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR); 1513 rtas_addr = rtas_limit - RTAS_MAX_SIZE; 1514 fdt_addr = rtas_addr - FDT_MAX_SIZE; 1515 1516 fdt = spapr_build_fdt(spapr, rtas_addr, spapr->rtas_size); 1517 1518 spapr_load_rtas(spapr, fdt, rtas_addr); 1519 1520 rc = fdt_pack(fdt); 1521 1522 /* Should only fail if we've built a corrupted tree */ 1523 assert(rc == 0); 1524 1525 if (fdt_totalsize(fdt) > FDT_MAX_SIZE) { 1526 error_report("FDT too big ! 0x%x bytes (max is 0x%x)", 1527 fdt_totalsize(fdt), FDT_MAX_SIZE); 1528 exit(1); 1529 } 1530 1531 /* Load the fdt */ 1532 qemu_fdt_dumpdtb(fdt, fdt_totalsize(fdt)); 1533 cpu_physical_memory_write(fdt_addr, fdt, fdt_totalsize(fdt)); 1534 g_free(fdt); 1535 1536 /* Set up the entry state */ 1537 first_ppc_cpu->env.gpr[3] = fdt_addr; 1538 first_ppc_cpu->env.gpr[5] = 0; 1539 first_cpu->halted = 0; 1540 first_ppc_cpu->env.nip = SPAPR_ENTRY_POINT; 1541 1542 spapr->cas_reboot = false; 1543 } 1544 1545 static void spapr_create_nvram(sPAPRMachineState *spapr) 1546 { 1547 DeviceState *dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram"); 1548 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); 1549 1550 if (dinfo) { 1551 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo), 1552 &error_fatal); 1553 } 1554 1555 qdev_init_nofail(dev); 1556 1557 spapr->nvram = (struct sPAPRNVRAM *)dev; 1558 } 1559 1560 static void spapr_rtc_create(sPAPRMachineState *spapr) 1561 { 1562 object_initialize(&spapr->rtc, sizeof(spapr->rtc), TYPE_SPAPR_RTC); 1563 object_property_add_child(OBJECT(spapr), "rtc", OBJECT(&spapr->rtc), 1564 &error_fatal); 1565 object_property_set_bool(OBJECT(&spapr->rtc), true, "realized", 1566 &error_fatal); 1567 object_property_add_alias(OBJECT(spapr), "rtc-time", OBJECT(&spapr->rtc), 1568 "date", &error_fatal); 1569 } 1570 1571 /* Returns whether we want to use VGA or not */ 1572 static bool spapr_vga_init(PCIBus *pci_bus, Error **errp) 1573 { 1574 switch (vga_interface_type) { 1575 case VGA_NONE: 1576 return false; 1577 case VGA_DEVICE: 1578 return true; 1579 case VGA_STD: 1580 case VGA_VIRTIO: 1581 return pci_vga_init(pci_bus) != NULL; 1582 default: 1583 error_setg(errp, 1584 "Unsupported VGA mode, only -vga std or -vga virtio is supported"); 1585 return false; 1586 } 1587 } 1588 1589 static int spapr_pre_load(void *opaque) 1590 { 1591 int rc; 1592 1593 rc = spapr_caps_pre_load(opaque); 1594 if (rc) { 1595 return rc; 1596 } 1597 1598 return 0; 1599 } 1600 1601 static int spapr_post_load(void *opaque, int version_id) 1602 { 1603 sPAPRMachineState *spapr = (sPAPRMachineState *)opaque; 1604 int err = 0; 1605 1606 err = spapr_caps_post_migration(spapr); 1607 if (err) { 1608 return err; 1609 } 1610 1611 if (!object_dynamic_cast(OBJECT(spapr->ics), TYPE_ICS_KVM)) { 1612 CPUState *cs; 1613 CPU_FOREACH(cs) { 1614 PowerPCCPU *cpu = POWERPC_CPU(cs); 1615 icp_resend(ICP(cpu->intc)); 1616 } 1617 } 1618 1619 /* In earlier versions, there was no separate qdev for the PAPR 1620 * RTC, so the RTC offset was stored directly in sPAPREnvironment. 1621 * So when migrating from those versions, poke the incoming offset 1622 * value into the RTC device */ 1623 if (version_id < 3) { 1624 err = spapr_rtc_import_offset(&spapr->rtc, spapr->rtc_offset); 1625 } 1626 1627 if (kvm_enabled() && spapr->patb_entry) { 1628 PowerPCCPU *cpu = POWERPC_CPU(first_cpu); 1629 bool radix = !!(spapr->patb_entry & PATBE1_GR); 1630 bool gtse = !!(cpu->env.spr[SPR_LPCR] & LPCR_GTSE); 1631 1632 err = kvmppc_configure_v3_mmu(cpu, radix, gtse, spapr->patb_entry); 1633 if (err) { 1634 error_report("Process table config unsupported by the host"); 1635 return -EINVAL; 1636 } 1637 } 1638 1639 return err; 1640 } 1641 1642 static int spapr_pre_save(void *opaque) 1643 { 1644 int rc; 1645 1646 rc = spapr_caps_pre_save(opaque); 1647 if (rc) { 1648 return rc; 1649 } 1650 1651 return 0; 1652 } 1653 1654 static bool version_before_3(void *opaque, int version_id) 1655 { 1656 return version_id < 3; 1657 } 1658 1659 static bool spapr_pending_events_needed(void *opaque) 1660 { 1661 sPAPRMachineState *spapr = (sPAPRMachineState *)opaque; 1662 return !QTAILQ_EMPTY(&spapr->pending_events); 1663 } 1664 1665 static const VMStateDescription vmstate_spapr_event_entry = { 1666 .name = "spapr_event_log_entry", 1667 .version_id = 1, 1668 .minimum_version_id = 1, 1669 .fields = (VMStateField[]) { 1670 VMSTATE_UINT32(summary, sPAPREventLogEntry), 1671 VMSTATE_UINT32(extended_length, sPAPREventLogEntry), 1672 VMSTATE_VBUFFER_ALLOC_UINT32(extended_log, sPAPREventLogEntry, 0, 1673 NULL, extended_length), 1674 VMSTATE_END_OF_LIST() 1675 }, 1676 }; 1677 1678 static const VMStateDescription vmstate_spapr_pending_events = { 1679 .name = "spapr_pending_events", 1680 .version_id = 1, 1681 .minimum_version_id = 1, 1682 .needed = spapr_pending_events_needed, 1683 .fields = (VMStateField[]) { 1684 VMSTATE_QTAILQ_V(pending_events, sPAPRMachineState, 1, 1685 vmstate_spapr_event_entry, sPAPREventLogEntry, next), 1686 VMSTATE_END_OF_LIST() 1687 }, 1688 }; 1689 1690 static bool spapr_ov5_cas_needed(void *opaque) 1691 { 1692 sPAPRMachineState *spapr = opaque; 1693 sPAPROptionVector *ov5_mask = spapr_ovec_new(); 1694 sPAPROptionVector *ov5_legacy = spapr_ovec_new(); 1695 sPAPROptionVector *ov5_removed = spapr_ovec_new(); 1696 bool cas_needed; 1697 1698 /* Prior to the introduction of sPAPROptionVector, we had two option 1699 * vectors we dealt with: OV5_FORM1_AFFINITY, and OV5_DRCONF_MEMORY. 1700 * Both of these options encode machine topology into the device-tree 1701 * in such a way that the now-booted OS should still be able to interact 1702 * appropriately with QEMU regardless of what options were actually 1703 * negotiatied on the source side. 1704 * 1705 * As such, we can avoid migrating the CAS-negotiated options if these 1706 * are the only options available on the current machine/platform. 1707 * Since these are the only options available for pseries-2.7 and 1708 * earlier, this allows us to maintain old->new/new->old migration 1709 * compatibility. 1710 * 1711 * For QEMU 2.8+, there are additional CAS-negotiatable options available 1712 * via default pseries-2.8 machines and explicit command-line parameters. 1713 * Some of these options, like OV5_HP_EVT, *do* require QEMU to be aware 1714 * of the actual CAS-negotiated values to continue working properly. For 1715 * example, availability of memory unplug depends on knowing whether 1716 * OV5_HP_EVT was negotiated via CAS. 1717 * 1718 * Thus, for any cases where the set of available CAS-negotiatable 1719 * options extends beyond OV5_FORM1_AFFINITY and OV5_DRCONF_MEMORY, we 1720 * include the CAS-negotiated options in the migration stream. 1721 */ 1722 spapr_ovec_set(ov5_mask, OV5_FORM1_AFFINITY); 1723 spapr_ovec_set(ov5_mask, OV5_DRCONF_MEMORY); 1724 1725 /* spapr_ovec_diff returns true if bits were removed. we avoid using 1726 * the mask itself since in the future it's possible "legacy" bits may be 1727 * removed via machine options, which could generate a false positive 1728 * that breaks migration. 1729 */ 1730 spapr_ovec_intersect(ov5_legacy, spapr->ov5, ov5_mask); 1731 cas_needed = spapr_ovec_diff(ov5_removed, spapr->ov5, ov5_legacy); 1732 1733 spapr_ovec_cleanup(ov5_mask); 1734 spapr_ovec_cleanup(ov5_legacy); 1735 spapr_ovec_cleanup(ov5_removed); 1736 1737 return cas_needed; 1738 } 1739 1740 static const VMStateDescription vmstate_spapr_ov5_cas = { 1741 .name = "spapr_option_vector_ov5_cas", 1742 .version_id = 1, 1743 .minimum_version_id = 1, 1744 .needed = spapr_ov5_cas_needed, 1745 .fields = (VMStateField[]) { 1746 VMSTATE_STRUCT_POINTER_V(ov5_cas, sPAPRMachineState, 1, 1747 vmstate_spapr_ovec, sPAPROptionVector), 1748 VMSTATE_END_OF_LIST() 1749 }, 1750 }; 1751 1752 static bool spapr_patb_entry_needed(void *opaque) 1753 { 1754 sPAPRMachineState *spapr = opaque; 1755 1756 return !!spapr->patb_entry; 1757 } 1758 1759 static const VMStateDescription vmstate_spapr_patb_entry = { 1760 .name = "spapr_patb_entry", 1761 .version_id = 1, 1762 .minimum_version_id = 1, 1763 .needed = spapr_patb_entry_needed, 1764 .fields = (VMStateField[]) { 1765 VMSTATE_UINT64(patb_entry, sPAPRMachineState), 1766 VMSTATE_END_OF_LIST() 1767 }, 1768 }; 1769 1770 static const VMStateDescription vmstate_spapr = { 1771 .name = "spapr", 1772 .version_id = 3, 1773 .minimum_version_id = 1, 1774 .pre_load = spapr_pre_load, 1775 .post_load = spapr_post_load, 1776 .pre_save = spapr_pre_save, 1777 .fields = (VMStateField[]) { 1778 /* used to be @next_irq */ 1779 VMSTATE_UNUSED_BUFFER(version_before_3, 0, 4), 1780 1781 /* RTC offset */ 1782 VMSTATE_UINT64_TEST(rtc_offset, sPAPRMachineState, version_before_3), 1783 1784 VMSTATE_PPC_TIMEBASE_V(tb, sPAPRMachineState, 2), 1785 VMSTATE_END_OF_LIST() 1786 }, 1787 .subsections = (const VMStateDescription*[]) { 1788 &vmstate_spapr_ov5_cas, 1789 &vmstate_spapr_patb_entry, 1790 &vmstate_spapr_pending_events, 1791 &vmstate_spapr_cap_htm, 1792 &vmstate_spapr_cap_vsx, 1793 &vmstate_spapr_cap_dfp, 1794 NULL 1795 } 1796 }; 1797 1798 static int htab_save_setup(QEMUFile *f, void *opaque) 1799 { 1800 sPAPRMachineState *spapr = opaque; 1801 1802 /* "Iteration" header */ 1803 if (!spapr->htab_shift) { 1804 qemu_put_be32(f, -1); 1805 } else { 1806 qemu_put_be32(f, spapr->htab_shift); 1807 } 1808 1809 if (spapr->htab) { 1810 spapr->htab_save_index = 0; 1811 spapr->htab_first_pass = true; 1812 } else { 1813 if (spapr->htab_shift) { 1814 assert(kvm_enabled()); 1815 } 1816 } 1817 1818 1819 return 0; 1820 } 1821 1822 static void htab_save_chunk(QEMUFile *f, sPAPRMachineState *spapr, 1823 int chunkstart, int n_valid, int n_invalid) 1824 { 1825 qemu_put_be32(f, chunkstart); 1826 qemu_put_be16(f, n_valid); 1827 qemu_put_be16(f, n_invalid); 1828 qemu_put_buffer(f, HPTE(spapr->htab, chunkstart), 1829 HASH_PTE_SIZE_64 * n_valid); 1830 } 1831 1832 static void htab_save_end_marker(QEMUFile *f) 1833 { 1834 qemu_put_be32(f, 0); 1835 qemu_put_be16(f, 0); 1836 qemu_put_be16(f, 0); 1837 } 1838 1839 static void htab_save_first_pass(QEMUFile *f, sPAPRMachineState *spapr, 1840 int64_t max_ns) 1841 { 1842 bool has_timeout = max_ns != -1; 1843 int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64; 1844 int index = spapr->htab_save_index; 1845 int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); 1846 1847 assert(spapr->htab_first_pass); 1848 1849 do { 1850 int chunkstart; 1851 1852 /* Consume invalid HPTEs */ 1853 while ((index < htabslots) 1854 && !HPTE_VALID(HPTE(spapr->htab, index))) { 1855 CLEAN_HPTE(HPTE(spapr->htab, index)); 1856 index++; 1857 } 1858 1859 /* Consume valid HPTEs */ 1860 chunkstart = index; 1861 while ((index < htabslots) && (index - chunkstart < USHRT_MAX) 1862 && HPTE_VALID(HPTE(spapr->htab, index))) { 1863 CLEAN_HPTE(HPTE(spapr->htab, index)); 1864 index++; 1865 } 1866 1867 if (index > chunkstart) { 1868 int n_valid = index - chunkstart; 1869 1870 htab_save_chunk(f, spapr, chunkstart, n_valid, 0); 1871 1872 if (has_timeout && 1873 (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) { 1874 break; 1875 } 1876 } 1877 } while ((index < htabslots) && !qemu_file_rate_limit(f)); 1878 1879 if (index >= htabslots) { 1880 assert(index == htabslots); 1881 index = 0; 1882 spapr->htab_first_pass = false; 1883 } 1884 spapr->htab_save_index = index; 1885 } 1886 1887 static int htab_save_later_pass(QEMUFile *f, sPAPRMachineState *spapr, 1888 int64_t max_ns) 1889 { 1890 bool final = max_ns < 0; 1891 int htabslots = HTAB_SIZE(spapr) / HASH_PTE_SIZE_64; 1892 int examined = 0, sent = 0; 1893 int index = spapr->htab_save_index; 1894 int64_t starttime = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); 1895 1896 assert(!spapr->htab_first_pass); 1897 1898 do { 1899 int chunkstart, invalidstart; 1900 1901 /* Consume non-dirty HPTEs */ 1902 while ((index < htabslots) 1903 && !HPTE_DIRTY(HPTE(spapr->htab, index))) { 1904 index++; 1905 examined++; 1906 } 1907 1908 chunkstart = index; 1909 /* Consume valid dirty HPTEs */ 1910 while ((index < htabslots) && (index - chunkstart < USHRT_MAX) 1911 && HPTE_DIRTY(HPTE(spapr->htab, index)) 1912 && HPTE_VALID(HPTE(spapr->htab, index))) { 1913 CLEAN_HPTE(HPTE(spapr->htab, index)); 1914 index++; 1915 examined++; 1916 } 1917 1918 invalidstart = index; 1919 /* Consume invalid dirty HPTEs */ 1920 while ((index < htabslots) && (index - invalidstart < USHRT_MAX) 1921 && HPTE_DIRTY(HPTE(spapr->htab, index)) 1922 && !HPTE_VALID(HPTE(spapr->htab, index))) { 1923 CLEAN_HPTE(HPTE(spapr->htab, index)); 1924 index++; 1925 examined++; 1926 } 1927 1928 if (index > chunkstart) { 1929 int n_valid = invalidstart - chunkstart; 1930 int n_invalid = index - invalidstart; 1931 1932 htab_save_chunk(f, spapr, chunkstart, n_valid, n_invalid); 1933 sent += index - chunkstart; 1934 1935 if (!final && (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - starttime) > max_ns) { 1936 break; 1937 } 1938 } 1939 1940 if (examined >= htabslots) { 1941 break; 1942 } 1943 1944 if (index >= htabslots) { 1945 assert(index == htabslots); 1946 index = 0; 1947 } 1948 } while ((examined < htabslots) && (!qemu_file_rate_limit(f) || final)); 1949 1950 if (index >= htabslots) { 1951 assert(index == htabslots); 1952 index = 0; 1953 } 1954 1955 spapr->htab_save_index = index; 1956 1957 return (examined >= htabslots) && (sent == 0) ? 1 : 0; 1958 } 1959 1960 #define MAX_ITERATION_NS 5000000 /* 5 ms */ 1961 #define MAX_KVM_BUF_SIZE 2048 1962 1963 static int htab_save_iterate(QEMUFile *f, void *opaque) 1964 { 1965 sPAPRMachineState *spapr = opaque; 1966 int fd; 1967 int rc = 0; 1968 1969 /* Iteration header */ 1970 if (!spapr->htab_shift) { 1971 qemu_put_be32(f, -1); 1972 return 1; 1973 } else { 1974 qemu_put_be32(f, 0); 1975 } 1976 1977 if (!spapr->htab) { 1978 assert(kvm_enabled()); 1979 1980 fd = get_htab_fd(spapr); 1981 if (fd < 0) { 1982 return fd; 1983 } 1984 1985 rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, MAX_ITERATION_NS); 1986 if (rc < 0) { 1987 return rc; 1988 } 1989 } else if (spapr->htab_first_pass) { 1990 htab_save_first_pass(f, spapr, MAX_ITERATION_NS); 1991 } else { 1992 rc = htab_save_later_pass(f, spapr, MAX_ITERATION_NS); 1993 } 1994 1995 htab_save_end_marker(f); 1996 1997 return rc; 1998 } 1999 2000 static int htab_save_complete(QEMUFile *f, void *opaque) 2001 { 2002 sPAPRMachineState *spapr = opaque; 2003 int fd; 2004 2005 /* Iteration header */ 2006 if (!spapr->htab_shift) { 2007 qemu_put_be32(f, -1); 2008 return 0; 2009 } else { 2010 qemu_put_be32(f, 0); 2011 } 2012 2013 if (!spapr->htab) { 2014 int rc; 2015 2016 assert(kvm_enabled()); 2017 2018 fd = get_htab_fd(spapr); 2019 if (fd < 0) { 2020 return fd; 2021 } 2022 2023 rc = kvmppc_save_htab(f, fd, MAX_KVM_BUF_SIZE, -1); 2024 if (rc < 0) { 2025 return rc; 2026 } 2027 } else { 2028 if (spapr->htab_first_pass) { 2029 htab_save_first_pass(f, spapr, -1); 2030 } 2031 htab_save_later_pass(f, spapr, -1); 2032 } 2033 2034 /* End marker */ 2035 htab_save_end_marker(f); 2036 2037 return 0; 2038 } 2039 2040 static int htab_load(QEMUFile *f, void *opaque, int version_id) 2041 { 2042 sPAPRMachineState *spapr = opaque; 2043 uint32_t section_hdr; 2044 int fd = -1; 2045 Error *local_err = NULL; 2046 2047 if (version_id < 1 || version_id > 1) { 2048 error_report("htab_load() bad version"); 2049 return -EINVAL; 2050 } 2051 2052 section_hdr = qemu_get_be32(f); 2053 2054 if (section_hdr == -1) { 2055 spapr_free_hpt(spapr); 2056 return 0; 2057 } 2058 2059 if (section_hdr) { 2060 /* First section gives the htab size */ 2061 spapr_reallocate_hpt(spapr, section_hdr, &local_err); 2062 if (local_err) { 2063 error_report_err(local_err); 2064 return -EINVAL; 2065 } 2066 return 0; 2067 } 2068 2069 if (!spapr->htab) { 2070 assert(kvm_enabled()); 2071 2072 fd = kvmppc_get_htab_fd(true, 0, &local_err); 2073 if (fd < 0) { 2074 error_report_err(local_err); 2075 return fd; 2076 } 2077 } 2078 2079 while (true) { 2080 uint32_t index; 2081 uint16_t n_valid, n_invalid; 2082 2083 index = qemu_get_be32(f); 2084 n_valid = qemu_get_be16(f); 2085 n_invalid = qemu_get_be16(f); 2086 2087 if ((index == 0) && (n_valid == 0) && (n_invalid == 0)) { 2088 /* End of Stream */ 2089 break; 2090 } 2091 2092 if ((index + n_valid + n_invalid) > 2093 (HTAB_SIZE(spapr) / HASH_PTE_SIZE_64)) { 2094 /* Bad index in stream */ 2095 error_report( 2096 "htab_load() bad index %d (%hd+%hd entries) in htab stream (htab_shift=%d)", 2097 index, n_valid, n_invalid, spapr->htab_shift); 2098 return -EINVAL; 2099 } 2100 2101 if (spapr->htab) { 2102 if (n_valid) { 2103 qemu_get_buffer(f, HPTE(spapr->htab, index), 2104 HASH_PTE_SIZE_64 * n_valid); 2105 } 2106 if (n_invalid) { 2107 memset(HPTE(spapr->htab, index + n_valid), 0, 2108 HASH_PTE_SIZE_64 * n_invalid); 2109 } 2110 } else { 2111 int rc; 2112 2113 assert(fd >= 0); 2114 2115 rc = kvmppc_load_htab_chunk(f, fd, index, n_valid, n_invalid); 2116 if (rc < 0) { 2117 return rc; 2118 } 2119 } 2120 } 2121 2122 if (!spapr->htab) { 2123 assert(fd >= 0); 2124 close(fd); 2125 } 2126 2127 return 0; 2128 } 2129 2130 static void htab_save_cleanup(void *opaque) 2131 { 2132 sPAPRMachineState *spapr = opaque; 2133 2134 close_htab_fd(spapr); 2135 } 2136 2137 static SaveVMHandlers savevm_htab_handlers = { 2138 .save_setup = htab_save_setup, 2139 .save_live_iterate = htab_save_iterate, 2140 .save_live_complete_precopy = htab_save_complete, 2141 .save_cleanup = htab_save_cleanup, 2142 .load_state = htab_load, 2143 }; 2144 2145 static void spapr_boot_set(void *opaque, const char *boot_device, 2146 Error **errp) 2147 { 2148 MachineState *machine = MACHINE(opaque); 2149 machine->boot_order = g_strdup(boot_device); 2150 } 2151 2152 static void spapr_create_lmb_dr_connectors(sPAPRMachineState *spapr) 2153 { 2154 MachineState *machine = MACHINE(spapr); 2155 uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE; 2156 uint32_t nr_lmbs = (machine->maxram_size - machine->ram_size)/lmb_size; 2157 int i; 2158 2159 for (i = 0; i < nr_lmbs; i++) { 2160 uint64_t addr; 2161 2162 addr = i * lmb_size + spapr->hotplug_memory.base; 2163 spapr_dr_connector_new(OBJECT(spapr), TYPE_SPAPR_DRC_LMB, 2164 addr / lmb_size); 2165 } 2166 } 2167 2168 /* 2169 * If RAM size, maxmem size and individual node mem sizes aren't aligned 2170 * to SPAPR_MEMORY_BLOCK_SIZE(256MB), then refuse to start the guest 2171 * since we can't support such unaligned sizes with DRCONF_MEMORY. 2172 */ 2173 static void spapr_validate_node_memory(MachineState *machine, Error **errp) 2174 { 2175 int i; 2176 2177 if (machine->ram_size % SPAPR_MEMORY_BLOCK_SIZE) { 2178 error_setg(errp, "Memory size 0x" RAM_ADDR_FMT 2179 " is not aligned to %llu MiB", 2180 machine->ram_size, 2181 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); 2182 return; 2183 } 2184 2185 if (machine->maxram_size % SPAPR_MEMORY_BLOCK_SIZE) { 2186 error_setg(errp, "Maximum memory size 0x" RAM_ADDR_FMT 2187 " is not aligned to %llu MiB", 2188 machine->ram_size, 2189 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); 2190 return; 2191 } 2192 2193 for (i = 0; i < nb_numa_nodes; i++) { 2194 if (numa_info[i].node_mem % SPAPR_MEMORY_BLOCK_SIZE) { 2195 error_setg(errp, 2196 "Node %d memory size 0x%" PRIx64 2197 " is not aligned to %llu MiB", 2198 i, numa_info[i].node_mem, 2199 SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); 2200 return; 2201 } 2202 } 2203 } 2204 2205 /* find cpu slot in machine->possible_cpus by core_id */ 2206 static CPUArchId *spapr_find_cpu_slot(MachineState *ms, uint32_t id, int *idx) 2207 { 2208 int index = id / smp_threads; 2209 2210 if (index >= ms->possible_cpus->len) { 2211 return NULL; 2212 } 2213 if (idx) { 2214 *idx = index; 2215 } 2216 return &ms->possible_cpus->cpus[index]; 2217 } 2218 2219 static void spapr_init_cpus(sPAPRMachineState *spapr) 2220 { 2221 MachineState *machine = MACHINE(spapr); 2222 MachineClass *mc = MACHINE_GET_CLASS(machine); 2223 const char *type = spapr_get_cpu_core_type(machine->cpu_type); 2224 int smt = kvmppc_smt_threads(); 2225 const CPUArchIdList *possible_cpus; 2226 int boot_cores_nr = smp_cpus / smp_threads; 2227 int i; 2228 2229 possible_cpus = mc->possible_cpu_arch_ids(machine); 2230 if (mc->has_hotpluggable_cpus) { 2231 if (smp_cpus % smp_threads) { 2232 error_report("smp_cpus (%u) must be multiple of threads (%u)", 2233 smp_cpus, smp_threads); 2234 exit(1); 2235 } 2236 if (max_cpus % smp_threads) { 2237 error_report("max_cpus (%u) must be multiple of threads (%u)", 2238 max_cpus, smp_threads); 2239 exit(1); 2240 } 2241 } else { 2242 if (max_cpus != smp_cpus) { 2243 error_report("This machine version does not support CPU hotplug"); 2244 exit(1); 2245 } 2246 boot_cores_nr = possible_cpus->len; 2247 } 2248 2249 for (i = 0; i < possible_cpus->len; i++) { 2250 int core_id = i * smp_threads; 2251 2252 if (mc->has_hotpluggable_cpus) { 2253 spapr_dr_connector_new(OBJECT(spapr), TYPE_SPAPR_DRC_CPU, 2254 (core_id / smp_threads) * smt); 2255 } 2256 2257 if (i < boot_cores_nr) { 2258 Object *core = object_new(type); 2259 int nr_threads = smp_threads; 2260 2261 /* Handle the partially filled core for older machine types */ 2262 if ((i + 1) * smp_threads >= smp_cpus) { 2263 nr_threads = smp_cpus - i * smp_threads; 2264 } 2265 2266 object_property_set_int(core, nr_threads, "nr-threads", 2267 &error_fatal); 2268 object_property_set_int(core, core_id, CPU_CORE_PROP_CORE_ID, 2269 &error_fatal); 2270 object_property_set_bool(core, true, "realized", &error_fatal); 2271 } 2272 } 2273 } 2274 2275 static void spapr_set_vsmt_mode(sPAPRMachineState *spapr, Error **errp) 2276 { 2277 Error *local_err = NULL; 2278 bool vsmt_user = !!spapr->vsmt; 2279 int kvm_smt = kvmppc_smt_threads(); 2280 int ret; 2281 2282 if (!kvm_enabled() && (smp_threads > 1)) { 2283 error_setg(&local_err, "TCG cannot support more than 1 thread/core " 2284 "on a pseries machine"); 2285 goto out; 2286 } 2287 if (!is_power_of_2(smp_threads)) { 2288 error_setg(&local_err, "Cannot support %d threads/core on a pseries " 2289 "machine because it must be a power of 2", smp_threads); 2290 goto out; 2291 } 2292 2293 /* Detemine the VSMT mode to use: */ 2294 if (vsmt_user) { 2295 if (spapr->vsmt < smp_threads) { 2296 error_setg(&local_err, "Cannot support VSMT mode %d" 2297 " because it must be >= threads/core (%d)", 2298 spapr->vsmt, smp_threads); 2299 goto out; 2300 } 2301 /* In this case, spapr->vsmt has been set by the command line */ 2302 } else { 2303 /* 2304 * Default VSMT value is tricky, because we need it to be as 2305 * consistent as possible (for migration), but this requires 2306 * changing it for at least some existing cases. We pick 8 as 2307 * the value that we'd get with KVM on POWER8, the 2308 * overwhelmingly common case in production systems. 2309 */ 2310 spapr->vsmt = 8; 2311 } 2312 2313 /* KVM: If necessary, set the SMT mode: */ 2314 if (kvm_enabled() && (spapr->vsmt != kvm_smt)) { 2315 ret = kvmppc_set_smt_threads(spapr->vsmt); 2316 if (ret) { 2317 /* Looks like KVM isn't able to change VSMT mode */ 2318 error_setg(&local_err, 2319 "Failed to set KVM's VSMT mode to %d (errno %d)", 2320 spapr->vsmt, ret); 2321 /* We can live with that if the default one is big enough 2322 * for the number of threads, and a submultiple of the one 2323 * we want. In this case we'll waste some vcpu ids, but 2324 * behaviour will be correct */ 2325 if ((kvm_smt >= smp_threads) && ((spapr->vsmt % kvm_smt) == 0)) { 2326 warn_report_err(local_err); 2327 local_err = NULL; 2328 goto out; 2329 } else { 2330 if (!vsmt_user) { 2331 error_append_hint(&local_err, 2332 "On PPC, a VM with %d threads/core" 2333 " on a host with %d threads/core" 2334 " requires the use of VSMT mode %d.\n", 2335 smp_threads, kvm_smt, spapr->vsmt); 2336 } 2337 kvmppc_hint_smt_possible(&local_err); 2338 goto out; 2339 } 2340 } 2341 } 2342 /* else TCG: nothing to do currently */ 2343 out: 2344 error_propagate(errp, local_err); 2345 } 2346 2347 /* pSeries LPAR / sPAPR hardware init */ 2348 static void spapr_machine_init(MachineState *machine) 2349 { 2350 sPAPRMachineState *spapr = SPAPR_MACHINE(machine); 2351 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(machine); 2352 const char *kernel_filename = machine->kernel_filename; 2353 const char *initrd_filename = machine->initrd_filename; 2354 PCIHostState *phb; 2355 int i; 2356 MemoryRegion *sysmem = get_system_memory(); 2357 MemoryRegion *ram = g_new(MemoryRegion, 1); 2358 MemoryRegion *rma_region; 2359 void *rma = NULL; 2360 hwaddr rma_alloc_size; 2361 hwaddr node0_size = spapr_node0_size(machine); 2362 long load_limit, fw_size; 2363 char *filename; 2364 Error *resize_hpt_err = NULL; 2365 2366 msi_nonbroken = true; 2367 2368 QLIST_INIT(&spapr->phbs); 2369 QTAILQ_INIT(&spapr->pending_dimm_unplugs); 2370 2371 /* Check HPT resizing availability */ 2372 kvmppc_check_papr_resize_hpt(&resize_hpt_err); 2373 if (spapr->resize_hpt == SPAPR_RESIZE_HPT_DEFAULT) { 2374 /* 2375 * If the user explicitly requested a mode we should either 2376 * supply it, or fail completely (which we do below). But if 2377 * it's not set explicitly, we reset our mode to something 2378 * that works 2379 */ 2380 if (resize_hpt_err) { 2381 spapr->resize_hpt = SPAPR_RESIZE_HPT_DISABLED; 2382 error_free(resize_hpt_err); 2383 resize_hpt_err = NULL; 2384 } else { 2385 spapr->resize_hpt = smc->resize_hpt_default; 2386 } 2387 } 2388 2389 assert(spapr->resize_hpt != SPAPR_RESIZE_HPT_DEFAULT); 2390 2391 if ((spapr->resize_hpt != SPAPR_RESIZE_HPT_DISABLED) && resize_hpt_err) { 2392 /* 2393 * User requested HPT resize, but this host can't supply it. Bail out 2394 */ 2395 error_report_err(resize_hpt_err); 2396 exit(1); 2397 } 2398 2399 /* Allocate RMA if necessary */ 2400 rma_alloc_size = kvmppc_alloc_rma(&rma); 2401 2402 if (rma_alloc_size == -1) { 2403 error_report("Unable to create RMA"); 2404 exit(1); 2405 } 2406 2407 if (rma_alloc_size && (rma_alloc_size < node0_size)) { 2408 spapr->rma_size = rma_alloc_size; 2409 } else { 2410 spapr->rma_size = node0_size; 2411 2412 /* With KVM, we don't actually know whether KVM supports an 2413 * unbounded RMA (PR KVM) or is limited by the hash table size 2414 * (HV KVM using VRMA), so we always assume the latter 2415 * 2416 * In that case, we also limit the initial allocations for RTAS 2417 * etc... to 256M since we have no way to know what the VRMA size 2418 * is going to be as it depends on the size of the hash table 2419 * isn't determined yet. 2420 */ 2421 if (kvm_enabled()) { 2422 spapr->vrma_adjust = 1; 2423 spapr->rma_size = MIN(spapr->rma_size, 0x10000000); 2424 } 2425 2426 /* Actually we don't support unbounded RMA anymore since we 2427 * added proper emulation of HV mode. The max we can get is 2428 * 16G which also happens to be what we configure for PAPR 2429 * mode so make sure we don't do anything bigger than that 2430 */ 2431 spapr->rma_size = MIN(spapr->rma_size, 0x400000000ull); 2432 } 2433 2434 if (spapr->rma_size > node0_size) { 2435 error_report("Numa node 0 has to span the RMA (%#08"HWADDR_PRIx")", 2436 spapr->rma_size); 2437 exit(1); 2438 } 2439 2440 /* Setup a load limit for the ramdisk leaving room for SLOF and FDT */ 2441 load_limit = MIN(spapr->rma_size, RTAS_MAX_ADDR) - FW_OVERHEAD; 2442 2443 /* Set up Interrupt Controller before we create the VCPUs */ 2444 xics_system_init(machine, XICS_IRQS_SPAPR, &error_fatal); 2445 2446 /* Set up containers for ibm,client-architecture-support negotiated options 2447 */ 2448 spapr->ov5 = spapr_ovec_new(); 2449 spapr->ov5_cas = spapr_ovec_new(); 2450 2451 if (smc->dr_lmb_enabled) { 2452 spapr_ovec_set(spapr->ov5, OV5_DRCONF_MEMORY); 2453 spapr_validate_node_memory(machine, &error_fatal); 2454 } 2455 2456 spapr_ovec_set(spapr->ov5, OV5_FORM1_AFFINITY); 2457 if (!kvm_enabled() || kvmppc_has_cap_mmu_radix()) { 2458 /* KVM and TCG always allow GTSE with radix... */ 2459 spapr_ovec_set(spapr->ov5, OV5_MMU_RADIX_GTSE); 2460 } 2461 /* ... but not with hash (currently). */ 2462 2463 /* advertise support for dedicated HP event source to guests */ 2464 if (spapr->use_hotplug_event_source) { 2465 spapr_ovec_set(spapr->ov5, OV5_HP_EVT); 2466 } 2467 2468 /* advertise support for HPT resizing */ 2469 if (spapr->resize_hpt != SPAPR_RESIZE_HPT_DISABLED) { 2470 spapr_ovec_set(spapr->ov5, OV5_HPT_RESIZE); 2471 } 2472 2473 /* init CPUs */ 2474 spapr_set_vsmt_mode(spapr, &error_fatal); 2475 2476 spapr_init_cpus(spapr); 2477 2478 if (kvm_enabled()) { 2479 /* Enable H_LOGICAL_CI_* so SLOF can talk to in-kernel devices */ 2480 kvmppc_enable_logical_ci_hcalls(); 2481 kvmppc_enable_set_mode_hcall(); 2482 2483 /* H_CLEAR_MOD/_REF are mandatory in PAPR, but off by default */ 2484 kvmppc_enable_clear_ref_mod_hcalls(); 2485 } 2486 2487 /* allocate RAM */ 2488 memory_region_allocate_system_memory(ram, NULL, "ppc_spapr.ram", 2489 machine->ram_size); 2490 memory_region_add_subregion(sysmem, 0, ram); 2491 2492 if (rma_alloc_size && rma) { 2493 rma_region = g_new(MemoryRegion, 1); 2494 memory_region_init_ram_ptr(rma_region, NULL, "ppc_spapr.rma", 2495 rma_alloc_size, rma); 2496 vmstate_register_ram_global(rma_region); 2497 memory_region_add_subregion(sysmem, 0, rma_region); 2498 } 2499 2500 /* initialize hotplug memory address space */ 2501 if (machine->ram_size < machine->maxram_size) { 2502 ram_addr_t hotplug_mem_size = machine->maxram_size - machine->ram_size; 2503 /* 2504 * Limit the number of hotpluggable memory slots to half the number 2505 * slots that KVM supports, leaving the other half for PCI and other 2506 * devices. However ensure that number of slots doesn't drop below 32. 2507 */ 2508 int max_memslots = kvm_enabled() ? kvm_get_max_memslots() / 2 : 2509 SPAPR_MAX_RAM_SLOTS; 2510 2511 if (max_memslots < SPAPR_MAX_RAM_SLOTS) { 2512 max_memslots = SPAPR_MAX_RAM_SLOTS; 2513 } 2514 if (machine->ram_slots > max_memslots) { 2515 error_report("Specified number of memory slots %" 2516 PRIu64" exceeds max supported %d", 2517 machine->ram_slots, max_memslots); 2518 exit(1); 2519 } 2520 2521 spapr->hotplug_memory.base = ROUND_UP(machine->ram_size, 2522 SPAPR_HOTPLUG_MEM_ALIGN); 2523 memory_region_init(&spapr->hotplug_memory.mr, OBJECT(spapr), 2524 "hotplug-memory", hotplug_mem_size); 2525 memory_region_add_subregion(sysmem, spapr->hotplug_memory.base, 2526 &spapr->hotplug_memory.mr); 2527 } 2528 2529 if (smc->dr_lmb_enabled) { 2530 spapr_create_lmb_dr_connectors(spapr); 2531 } 2532 2533 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, "spapr-rtas.bin"); 2534 if (!filename) { 2535 error_report("Could not find LPAR rtas '%s'", "spapr-rtas.bin"); 2536 exit(1); 2537 } 2538 spapr->rtas_size = get_image_size(filename); 2539 if (spapr->rtas_size < 0) { 2540 error_report("Could not get size of LPAR rtas '%s'", filename); 2541 exit(1); 2542 } 2543 spapr->rtas_blob = g_malloc(spapr->rtas_size); 2544 if (load_image_size(filename, spapr->rtas_blob, spapr->rtas_size) < 0) { 2545 error_report("Could not load LPAR rtas '%s'", filename); 2546 exit(1); 2547 } 2548 if (spapr->rtas_size > RTAS_MAX_SIZE) { 2549 error_report("RTAS too big ! 0x%zx bytes (max is 0x%x)", 2550 (size_t)spapr->rtas_size, RTAS_MAX_SIZE); 2551 exit(1); 2552 } 2553 g_free(filename); 2554 2555 /* Set up RTAS event infrastructure */ 2556 spapr_events_init(spapr); 2557 2558 /* Set up the RTC RTAS interfaces */ 2559 spapr_rtc_create(spapr); 2560 2561 /* Set up VIO bus */ 2562 spapr->vio_bus = spapr_vio_bus_init(); 2563 2564 for (i = 0; i < MAX_SERIAL_PORTS; i++) { 2565 if (serial_hds[i]) { 2566 spapr_vty_create(spapr->vio_bus, serial_hds[i]); 2567 } 2568 } 2569 2570 /* We always have at least the nvram device on VIO */ 2571 spapr_create_nvram(spapr); 2572 2573 /* Set up PCI */ 2574 spapr_pci_rtas_init(); 2575 2576 phb = spapr_create_phb(spapr, 0); 2577 2578 for (i = 0; i < nb_nics; i++) { 2579 NICInfo *nd = &nd_table[i]; 2580 2581 if (!nd->model) { 2582 nd->model = g_strdup("ibmveth"); 2583 } 2584 2585 if (strcmp(nd->model, "ibmveth") == 0) { 2586 spapr_vlan_create(spapr->vio_bus, nd); 2587 } else { 2588 pci_nic_init_nofail(&nd_table[i], phb->bus, nd->model, NULL); 2589 } 2590 } 2591 2592 for (i = 0; i <= drive_get_max_bus(IF_SCSI); i++) { 2593 spapr_vscsi_create(spapr->vio_bus); 2594 } 2595 2596 /* Graphics */ 2597 if (spapr_vga_init(phb->bus, &error_fatal)) { 2598 spapr->has_graphics = true; 2599 machine->usb |= defaults_enabled() && !machine->usb_disabled; 2600 } 2601 2602 if (machine->usb) { 2603 if (smc->use_ohci_by_default) { 2604 pci_create_simple(phb->bus, -1, "pci-ohci"); 2605 } else { 2606 pci_create_simple(phb->bus, -1, "nec-usb-xhci"); 2607 } 2608 2609 if (spapr->has_graphics) { 2610 USBBus *usb_bus = usb_bus_find(-1); 2611 2612 usb_create_simple(usb_bus, "usb-kbd"); 2613 usb_create_simple(usb_bus, "usb-mouse"); 2614 } 2615 } 2616 2617 if (spapr->rma_size < (MIN_RMA_SLOF << 20)) { 2618 error_report( 2619 "pSeries SLOF firmware requires >= %ldM guest RMA (Real Mode Area memory)", 2620 MIN_RMA_SLOF); 2621 exit(1); 2622 } 2623 2624 if (kernel_filename) { 2625 uint64_t lowaddr = 0; 2626 2627 spapr->kernel_size = load_elf(kernel_filename, translate_kernel_address, 2628 NULL, NULL, &lowaddr, NULL, 1, 2629 PPC_ELF_MACHINE, 0, 0); 2630 if (spapr->kernel_size == ELF_LOAD_WRONG_ENDIAN) { 2631 spapr->kernel_size = load_elf(kernel_filename, 2632 translate_kernel_address, NULL, NULL, 2633 &lowaddr, NULL, 0, PPC_ELF_MACHINE, 2634 0, 0); 2635 spapr->kernel_le = spapr->kernel_size > 0; 2636 } 2637 if (spapr->kernel_size < 0) { 2638 error_report("error loading %s: %s", kernel_filename, 2639 load_elf_strerror(spapr->kernel_size)); 2640 exit(1); 2641 } 2642 2643 /* load initrd */ 2644 if (initrd_filename) { 2645 /* Try to locate the initrd in the gap between the kernel 2646 * and the firmware. Add a bit of space just in case 2647 */ 2648 spapr->initrd_base = (KERNEL_LOAD_ADDR + spapr->kernel_size 2649 + 0x1ffff) & ~0xffff; 2650 spapr->initrd_size = load_image_targphys(initrd_filename, 2651 spapr->initrd_base, 2652 load_limit 2653 - spapr->initrd_base); 2654 if (spapr->initrd_size < 0) { 2655 error_report("could not load initial ram disk '%s'", 2656 initrd_filename); 2657 exit(1); 2658 } 2659 } 2660 } 2661 2662 if (bios_name == NULL) { 2663 bios_name = FW_FILE_NAME; 2664 } 2665 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); 2666 if (!filename) { 2667 error_report("Could not find LPAR firmware '%s'", bios_name); 2668 exit(1); 2669 } 2670 fw_size = load_image_targphys(filename, 0, FW_MAX_SIZE); 2671 if (fw_size <= 0) { 2672 error_report("Could not load LPAR firmware '%s'", filename); 2673 exit(1); 2674 } 2675 g_free(filename); 2676 2677 /* FIXME: Should register things through the MachineState's qdev 2678 * interface, this is a legacy from the sPAPREnvironment structure 2679 * which predated MachineState but had a similar function */ 2680 vmstate_register(NULL, 0, &vmstate_spapr, spapr); 2681 register_savevm_live(NULL, "spapr/htab", -1, 1, 2682 &savevm_htab_handlers, spapr); 2683 2684 qemu_register_boot_set(spapr_boot_set, spapr); 2685 2686 if (kvm_enabled()) { 2687 /* to stop and start vmclock */ 2688 qemu_add_vm_change_state_handler(cpu_ppc_clock_vm_state_change, 2689 &spapr->tb); 2690 2691 kvmppc_spapr_enable_inkernel_multitce(); 2692 } 2693 } 2694 2695 static int spapr_kvm_type(const char *vm_type) 2696 { 2697 if (!vm_type) { 2698 return 0; 2699 } 2700 2701 if (!strcmp(vm_type, "HV")) { 2702 return 1; 2703 } 2704 2705 if (!strcmp(vm_type, "PR")) { 2706 return 2; 2707 } 2708 2709 error_report("Unknown kvm-type specified '%s'", vm_type); 2710 exit(1); 2711 } 2712 2713 /* 2714 * Implementation of an interface to adjust firmware path 2715 * for the bootindex property handling. 2716 */ 2717 static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus, 2718 DeviceState *dev) 2719 { 2720 #define CAST(type, obj, name) \ 2721 ((type *)object_dynamic_cast(OBJECT(obj), (name))) 2722 SCSIDevice *d = CAST(SCSIDevice, dev, TYPE_SCSI_DEVICE); 2723 sPAPRPHBState *phb = CAST(sPAPRPHBState, dev, TYPE_SPAPR_PCI_HOST_BRIDGE); 2724 VHostSCSICommon *vsc = CAST(VHostSCSICommon, dev, TYPE_VHOST_SCSI_COMMON); 2725 2726 if (d) { 2727 void *spapr = CAST(void, bus->parent, "spapr-vscsi"); 2728 VirtIOSCSI *virtio = CAST(VirtIOSCSI, bus->parent, TYPE_VIRTIO_SCSI); 2729 USBDevice *usb = CAST(USBDevice, bus->parent, TYPE_USB_DEVICE); 2730 2731 if (spapr) { 2732 /* 2733 * Replace "channel@0/disk@0,0" with "disk@8000000000000000": 2734 * We use SRP luns of the form 8000 | (bus << 8) | (id << 5) | lun 2735 * in the top 16 bits of the 64-bit LUN 2736 */ 2737 unsigned id = 0x8000 | (d->id << 8) | d->lun; 2738 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), 2739 (uint64_t)id << 48); 2740 } else if (virtio) { 2741 /* 2742 * We use SRP luns of the form 01000000 | (target << 8) | lun 2743 * in the top 32 bits of the 64-bit LUN 2744 * Note: the quote above is from SLOF and it is wrong, 2745 * the actual binding is: 2746 * swap 0100 or 10 << or 20 << ( target lun-id -- srplun ) 2747 */ 2748 unsigned id = 0x1000000 | (d->id << 16) | d->lun; 2749 if (d->lun >= 256) { 2750 /* Use the LUN "flat space addressing method" */ 2751 id |= 0x4000; 2752 } 2753 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), 2754 (uint64_t)id << 32); 2755 } else if (usb) { 2756 /* 2757 * We use SRP luns of the form 01000000 | (usb-port << 16) | lun 2758 * in the top 32 bits of the 64-bit LUN 2759 */ 2760 unsigned usb_port = atoi(usb->port->path); 2761 unsigned id = 0x1000000 | (usb_port << 16) | d->lun; 2762 return g_strdup_printf("%s@%"PRIX64, qdev_fw_name(dev), 2763 (uint64_t)id << 32); 2764 } 2765 } 2766 2767 /* 2768 * SLOF probes the USB devices, and if it recognizes that the device is a 2769 * storage device, it changes its name to "storage" instead of "usb-host", 2770 * and additionally adds a child node for the SCSI LUN, so the correct 2771 * boot path in SLOF is something like .../storage@1/disk@xxx" instead. 2772 */ 2773 if (strcmp("usb-host", qdev_fw_name(dev)) == 0) { 2774 USBDevice *usbdev = CAST(USBDevice, dev, TYPE_USB_DEVICE); 2775 if (usb_host_dev_is_scsi_storage(usbdev)) { 2776 return g_strdup_printf("storage@%s/disk", usbdev->port->path); 2777 } 2778 } 2779 2780 if (phb) { 2781 /* Replace "pci" with "pci@800000020000000" */ 2782 return g_strdup_printf("pci@%"PRIX64, phb->buid); 2783 } 2784 2785 if (vsc) { 2786 /* Same logic as virtio above */ 2787 unsigned id = 0x1000000 | (vsc->target << 16) | vsc->lun; 2788 return g_strdup_printf("disk@%"PRIX64, (uint64_t)id << 32); 2789 } 2790 2791 if (g_str_equal("pci-bridge", qdev_fw_name(dev))) { 2792 /* SLOF uses "pci" instead of "pci-bridge" for PCI bridges */ 2793 PCIDevice *pcidev = CAST(PCIDevice, dev, TYPE_PCI_DEVICE); 2794 return g_strdup_printf("pci@%x", PCI_SLOT(pcidev->devfn)); 2795 } 2796 2797 return NULL; 2798 } 2799 2800 static char *spapr_get_kvm_type(Object *obj, Error **errp) 2801 { 2802 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2803 2804 return g_strdup(spapr->kvm_type); 2805 } 2806 2807 static void spapr_set_kvm_type(Object *obj, const char *value, Error **errp) 2808 { 2809 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2810 2811 g_free(spapr->kvm_type); 2812 spapr->kvm_type = g_strdup(value); 2813 } 2814 2815 static bool spapr_get_modern_hotplug_events(Object *obj, Error **errp) 2816 { 2817 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2818 2819 return spapr->use_hotplug_event_source; 2820 } 2821 2822 static void spapr_set_modern_hotplug_events(Object *obj, bool value, 2823 Error **errp) 2824 { 2825 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2826 2827 spapr->use_hotplug_event_source = value; 2828 } 2829 2830 static char *spapr_get_resize_hpt(Object *obj, Error **errp) 2831 { 2832 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2833 2834 switch (spapr->resize_hpt) { 2835 case SPAPR_RESIZE_HPT_DEFAULT: 2836 return g_strdup("default"); 2837 case SPAPR_RESIZE_HPT_DISABLED: 2838 return g_strdup("disabled"); 2839 case SPAPR_RESIZE_HPT_ENABLED: 2840 return g_strdup("enabled"); 2841 case SPAPR_RESIZE_HPT_REQUIRED: 2842 return g_strdup("required"); 2843 } 2844 g_assert_not_reached(); 2845 } 2846 2847 static void spapr_set_resize_hpt(Object *obj, const char *value, Error **errp) 2848 { 2849 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2850 2851 if (strcmp(value, "default") == 0) { 2852 spapr->resize_hpt = SPAPR_RESIZE_HPT_DEFAULT; 2853 } else if (strcmp(value, "disabled") == 0) { 2854 spapr->resize_hpt = SPAPR_RESIZE_HPT_DISABLED; 2855 } else if (strcmp(value, "enabled") == 0) { 2856 spapr->resize_hpt = SPAPR_RESIZE_HPT_ENABLED; 2857 } else if (strcmp(value, "required") == 0) { 2858 spapr->resize_hpt = SPAPR_RESIZE_HPT_REQUIRED; 2859 } else { 2860 error_setg(errp, "Bad value for \"resize-hpt\" property"); 2861 } 2862 } 2863 2864 static void spapr_get_vsmt(Object *obj, Visitor *v, const char *name, 2865 void *opaque, Error **errp) 2866 { 2867 visit_type_uint32(v, name, (uint32_t *)opaque, errp); 2868 } 2869 2870 static void spapr_set_vsmt(Object *obj, Visitor *v, const char *name, 2871 void *opaque, Error **errp) 2872 { 2873 visit_type_uint32(v, name, (uint32_t *)opaque, errp); 2874 } 2875 2876 static void spapr_instance_init(Object *obj) 2877 { 2878 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2879 2880 spapr->htab_fd = -1; 2881 spapr->use_hotplug_event_source = true; 2882 object_property_add_str(obj, "kvm-type", 2883 spapr_get_kvm_type, spapr_set_kvm_type, NULL); 2884 object_property_set_description(obj, "kvm-type", 2885 "Specifies the KVM virtualization mode (HV, PR)", 2886 NULL); 2887 object_property_add_bool(obj, "modern-hotplug-events", 2888 spapr_get_modern_hotplug_events, 2889 spapr_set_modern_hotplug_events, 2890 NULL); 2891 object_property_set_description(obj, "modern-hotplug-events", 2892 "Use dedicated hotplug event mechanism in" 2893 " place of standard EPOW events when possible" 2894 " (required for memory hot-unplug support)", 2895 NULL); 2896 2897 ppc_compat_add_property(obj, "max-cpu-compat", &spapr->max_compat_pvr, 2898 "Maximum permitted CPU compatibility mode", 2899 &error_fatal); 2900 2901 object_property_add_str(obj, "resize-hpt", 2902 spapr_get_resize_hpt, spapr_set_resize_hpt, NULL); 2903 object_property_set_description(obj, "resize-hpt", 2904 "Resizing of the Hash Page Table (enabled, disabled, required)", 2905 NULL); 2906 object_property_add(obj, "vsmt", "uint32", spapr_get_vsmt, 2907 spapr_set_vsmt, NULL, &spapr->vsmt, &error_abort); 2908 object_property_set_description(obj, "vsmt", 2909 "Virtual SMT: KVM behaves as if this were" 2910 " the host's SMT mode", &error_abort); 2911 } 2912 2913 static void spapr_machine_finalizefn(Object *obj) 2914 { 2915 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 2916 2917 g_free(spapr->kvm_type); 2918 } 2919 2920 void spapr_do_system_reset_on_cpu(CPUState *cs, run_on_cpu_data arg) 2921 { 2922 cpu_synchronize_state(cs); 2923 ppc_cpu_do_system_reset(cs); 2924 } 2925 2926 static void spapr_nmi(NMIState *n, int cpu_index, Error **errp) 2927 { 2928 CPUState *cs; 2929 2930 CPU_FOREACH(cs) { 2931 async_run_on_cpu(cs, spapr_do_system_reset_on_cpu, RUN_ON_CPU_NULL); 2932 } 2933 } 2934 2935 static void spapr_add_lmbs(DeviceState *dev, uint64_t addr_start, uint64_t size, 2936 uint32_t node, bool dedicated_hp_event_source, 2937 Error **errp) 2938 { 2939 sPAPRDRConnector *drc; 2940 uint32_t nr_lmbs = size/SPAPR_MEMORY_BLOCK_SIZE; 2941 int i, fdt_offset, fdt_size; 2942 void *fdt; 2943 uint64_t addr = addr_start; 2944 bool hotplugged = spapr_drc_hotplugged(dev); 2945 Error *local_err = NULL; 2946 2947 for (i = 0; i < nr_lmbs; i++) { 2948 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 2949 addr / SPAPR_MEMORY_BLOCK_SIZE); 2950 g_assert(drc); 2951 2952 fdt = create_device_tree(&fdt_size); 2953 fdt_offset = spapr_populate_memory_node(fdt, node, addr, 2954 SPAPR_MEMORY_BLOCK_SIZE); 2955 2956 spapr_drc_attach(drc, dev, fdt, fdt_offset, &local_err); 2957 if (local_err) { 2958 while (addr > addr_start) { 2959 addr -= SPAPR_MEMORY_BLOCK_SIZE; 2960 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 2961 addr / SPAPR_MEMORY_BLOCK_SIZE); 2962 spapr_drc_detach(drc); 2963 } 2964 g_free(fdt); 2965 error_propagate(errp, local_err); 2966 return; 2967 } 2968 if (!hotplugged) { 2969 spapr_drc_reset(drc); 2970 } 2971 addr += SPAPR_MEMORY_BLOCK_SIZE; 2972 } 2973 /* send hotplug notification to the 2974 * guest only in case of hotplugged memory 2975 */ 2976 if (hotplugged) { 2977 if (dedicated_hp_event_source) { 2978 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 2979 addr_start / SPAPR_MEMORY_BLOCK_SIZE); 2980 spapr_hotplug_req_add_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB, 2981 nr_lmbs, 2982 spapr_drc_index(drc)); 2983 } else { 2984 spapr_hotplug_req_add_by_count(SPAPR_DR_CONNECTOR_TYPE_LMB, 2985 nr_lmbs); 2986 } 2987 } 2988 } 2989 2990 static void spapr_memory_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 2991 uint32_t node, Error **errp) 2992 { 2993 Error *local_err = NULL; 2994 sPAPRMachineState *ms = SPAPR_MACHINE(hotplug_dev); 2995 PCDIMMDevice *dimm = PC_DIMM(dev); 2996 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); 2997 MemoryRegion *mr; 2998 uint64_t align, size, addr; 2999 3000 mr = ddc->get_memory_region(dimm, &local_err); 3001 if (local_err) { 3002 goto out; 3003 } 3004 align = memory_region_get_alignment(mr); 3005 size = memory_region_size(mr); 3006 3007 pc_dimm_memory_plug(dev, &ms->hotplug_memory, mr, align, &local_err); 3008 if (local_err) { 3009 goto out; 3010 } 3011 3012 addr = object_property_get_uint(OBJECT(dimm), 3013 PC_DIMM_ADDR_PROP, &local_err); 3014 if (local_err) { 3015 goto out_unplug; 3016 } 3017 3018 spapr_add_lmbs(dev, addr, size, node, 3019 spapr_ovec_test(ms->ov5_cas, OV5_HP_EVT), 3020 &local_err); 3021 if (local_err) { 3022 goto out_unplug; 3023 } 3024 3025 return; 3026 3027 out_unplug: 3028 pc_dimm_memory_unplug(dev, &ms->hotplug_memory, mr); 3029 out: 3030 error_propagate(errp, local_err); 3031 } 3032 3033 static void spapr_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 3034 Error **errp) 3035 { 3036 PCDIMMDevice *dimm = PC_DIMM(dev); 3037 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); 3038 MemoryRegion *mr; 3039 uint64_t size; 3040 char *mem_dev; 3041 3042 mr = ddc->get_memory_region(dimm, errp); 3043 if (!mr) { 3044 return; 3045 } 3046 size = memory_region_size(mr); 3047 3048 if (size % SPAPR_MEMORY_BLOCK_SIZE) { 3049 error_setg(errp, "Hotplugged memory size must be a multiple of " 3050 "%lld MB", SPAPR_MEMORY_BLOCK_SIZE / M_BYTE); 3051 return; 3052 } 3053 3054 mem_dev = object_property_get_str(OBJECT(dimm), PC_DIMM_MEMDEV_PROP, NULL); 3055 if (mem_dev && !kvmppc_is_mem_backend_page_size_ok(mem_dev)) { 3056 error_setg(errp, "Memory backend has bad page size. " 3057 "Use 'memory-backend-file' with correct mem-path."); 3058 goto out; 3059 } 3060 3061 out: 3062 g_free(mem_dev); 3063 } 3064 3065 struct sPAPRDIMMState { 3066 PCDIMMDevice *dimm; 3067 uint32_t nr_lmbs; 3068 QTAILQ_ENTRY(sPAPRDIMMState) next; 3069 }; 3070 3071 static sPAPRDIMMState *spapr_pending_dimm_unplugs_find(sPAPRMachineState *s, 3072 PCDIMMDevice *dimm) 3073 { 3074 sPAPRDIMMState *dimm_state = NULL; 3075 3076 QTAILQ_FOREACH(dimm_state, &s->pending_dimm_unplugs, next) { 3077 if (dimm_state->dimm == dimm) { 3078 break; 3079 } 3080 } 3081 return dimm_state; 3082 } 3083 3084 static sPAPRDIMMState *spapr_pending_dimm_unplugs_add(sPAPRMachineState *spapr, 3085 uint32_t nr_lmbs, 3086 PCDIMMDevice *dimm) 3087 { 3088 sPAPRDIMMState *ds = NULL; 3089 3090 /* 3091 * If this request is for a DIMM whose removal had failed earlier 3092 * (due to guest's refusal to remove the LMBs), we would have this 3093 * dimm already in the pending_dimm_unplugs list. In that 3094 * case don't add again. 3095 */ 3096 ds = spapr_pending_dimm_unplugs_find(spapr, dimm); 3097 if (!ds) { 3098 ds = g_malloc0(sizeof(sPAPRDIMMState)); 3099 ds->nr_lmbs = nr_lmbs; 3100 ds->dimm = dimm; 3101 QTAILQ_INSERT_HEAD(&spapr->pending_dimm_unplugs, ds, next); 3102 } 3103 return ds; 3104 } 3105 3106 static void spapr_pending_dimm_unplugs_remove(sPAPRMachineState *spapr, 3107 sPAPRDIMMState *dimm_state) 3108 { 3109 QTAILQ_REMOVE(&spapr->pending_dimm_unplugs, dimm_state, next); 3110 g_free(dimm_state); 3111 } 3112 3113 static sPAPRDIMMState *spapr_recover_pending_dimm_state(sPAPRMachineState *ms, 3114 PCDIMMDevice *dimm) 3115 { 3116 sPAPRDRConnector *drc; 3117 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); 3118 MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort); 3119 uint64_t size = memory_region_size(mr); 3120 uint32_t nr_lmbs = size / SPAPR_MEMORY_BLOCK_SIZE; 3121 uint32_t avail_lmbs = 0; 3122 uint64_t addr_start, addr; 3123 int i; 3124 3125 addr_start = object_property_get_int(OBJECT(dimm), PC_DIMM_ADDR_PROP, 3126 &error_abort); 3127 3128 addr = addr_start; 3129 for (i = 0; i < nr_lmbs; i++) { 3130 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 3131 addr / SPAPR_MEMORY_BLOCK_SIZE); 3132 g_assert(drc); 3133 if (drc->dev) { 3134 avail_lmbs++; 3135 } 3136 addr += SPAPR_MEMORY_BLOCK_SIZE; 3137 } 3138 3139 return spapr_pending_dimm_unplugs_add(ms, avail_lmbs, dimm); 3140 } 3141 3142 /* Callback to be called during DRC release. */ 3143 void spapr_lmb_release(DeviceState *dev) 3144 { 3145 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_hotplug_handler(dev)); 3146 PCDIMMDevice *dimm = PC_DIMM(dev); 3147 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); 3148 MemoryRegion *mr = ddc->get_memory_region(dimm, &error_abort); 3149 sPAPRDIMMState *ds = spapr_pending_dimm_unplugs_find(spapr, PC_DIMM(dev)); 3150 3151 /* This information will get lost if a migration occurs 3152 * during the unplug process. In this case recover it. */ 3153 if (ds == NULL) { 3154 ds = spapr_recover_pending_dimm_state(spapr, PC_DIMM(dev)); 3155 g_assert(ds); 3156 /* The DRC being examined by the caller at least must be counted */ 3157 g_assert(ds->nr_lmbs); 3158 } 3159 3160 if (--ds->nr_lmbs) { 3161 return; 3162 } 3163 3164 /* 3165 * Now that all the LMBs have been removed by the guest, call the 3166 * pc-dimm unplug handler to cleanup up the pc-dimm device. 3167 */ 3168 pc_dimm_memory_unplug(dev, &spapr->hotplug_memory, mr); 3169 object_unparent(OBJECT(dev)); 3170 spapr_pending_dimm_unplugs_remove(spapr, ds); 3171 } 3172 3173 static void spapr_memory_unplug_request(HotplugHandler *hotplug_dev, 3174 DeviceState *dev, Error **errp) 3175 { 3176 sPAPRMachineState *spapr = SPAPR_MACHINE(hotplug_dev); 3177 Error *local_err = NULL; 3178 PCDIMMDevice *dimm = PC_DIMM(dev); 3179 PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); 3180 MemoryRegion *mr; 3181 uint32_t nr_lmbs; 3182 uint64_t size, addr_start, addr; 3183 int i; 3184 sPAPRDRConnector *drc; 3185 3186 mr = ddc->get_memory_region(dimm, &local_err); 3187 if (local_err) { 3188 goto out; 3189 } 3190 size = memory_region_size(mr); 3191 nr_lmbs = size / SPAPR_MEMORY_BLOCK_SIZE; 3192 3193 addr_start = object_property_get_uint(OBJECT(dimm), PC_DIMM_ADDR_PROP, 3194 &local_err); 3195 if (local_err) { 3196 goto out; 3197 } 3198 3199 /* 3200 * An existing pending dimm state for this DIMM means that there is an 3201 * unplug operation in progress, waiting for the spapr_lmb_release 3202 * callback to complete the job (BQL can't cover that far). In this case, 3203 * bail out to avoid detaching DRCs that were already released. 3204 */ 3205 if (spapr_pending_dimm_unplugs_find(spapr, dimm)) { 3206 error_setg(&local_err, 3207 "Memory unplug already in progress for device %s", 3208 dev->id); 3209 goto out; 3210 } 3211 3212 spapr_pending_dimm_unplugs_add(spapr, nr_lmbs, dimm); 3213 3214 addr = addr_start; 3215 for (i = 0; i < nr_lmbs; i++) { 3216 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 3217 addr / SPAPR_MEMORY_BLOCK_SIZE); 3218 g_assert(drc); 3219 3220 spapr_drc_detach(drc); 3221 addr += SPAPR_MEMORY_BLOCK_SIZE; 3222 } 3223 3224 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_LMB, 3225 addr_start / SPAPR_MEMORY_BLOCK_SIZE); 3226 spapr_hotplug_req_remove_by_count_indexed(SPAPR_DR_CONNECTOR_TYPE_LMB, 3227 nr_lmbs, spapr_drc_index(drc)); 3228 out: 3229 error_propagate(errp, local_err); 3230 } 3231 3232 static void *spapr_populate_hotplug_cpu_dt(CPUState *cs, int *fdt_offset, 3233 sPAPRMachineState *spapr) 3234 { 3235 PowerPCCPU *cpu = POWERPC_CPU(cs); 3236 DeviceClass *dc = DEVICE_GET_CLASS(cs); 3237 int id = spapr_vcpu_id(cpu); 3238 void *fdt; 3239 int offset, fdt_size; 3240 char *nodename; 3241 3242 fdt = create_device_tree(&fdt_size); 3243 nodename = g_strdup_printf("%s@%x", dc->fw_name, id); 3244 offset = fdt_add_subnode(fdt, 0, nodename); 3245 3246 spapr_populate_cpu_dt(cs, fdt, offset, spapr); 3247 g_free(nodename); 3248 3249 *fdt_offset = offset; 3250 return fdt; 3251 } 3252 3253 /* Callback to be called during DRC release. */ 3254 void spapr_core_release(DeviceState *dev) 3255 { 3256 MachineState *ms = MACHINE(qdev_get_hotplug_handler(dev)); 3257 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(ms); 3258 CPUCore *cc = CPU_CORE(dev); 3259 CPUArchId *core_slot = spapr_find_cpu_slot(ms, cc->core_id, NULL); 3260 3261 if (smc->pre_2_10_has_unused_icps) { 3262 sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev)); 3263 int i; 3264 3265 for (i = 0; i < cc->nr_threads; i++) { 3266 CPUState *cs = CPU(sc->threads[i]); 3267 3268 pre_2_10_vmstate_register_dummy_icp(cs->cpu_index); 3269 } 3270 } 3271 3272 assert(core_slot); 3273 core_slot->cpu = NULL; 3274 object_unparent(OBJECT(dev)); 3275 } 3276 3277 static 3278 void spapr_core_unplug_request(HotplugHandler *hotplug_dev, DeviceState *dev, 3279 Error **errp) 3280 { 3281 int index; 3282 sPAPRDRConnector *drc; 3283 CPUCore *cc = CPU_CORE(dev); 3284 int smt = kvmppc_smt_threads(); 3285 3286 if (!spapr_find_cpu_slot(MACHINE(hotplug_dev), cc->core_id, &index)) { 3287 error_setg(errp, "Unable to find CPU core with core-id: %d", 3288 cc->core_id); 3289 return; 3290 } 3291 if (index == 0) { 3292 error_setg(errp, "Boot CPU core may not be unplugged"); 3293 return; 3294 } 3295 3296 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_CPU, index * smt); 3297 g_assert(drc); 3298 3299 spapr_drc_detach(drc); 3300 3301 spapr_hotplug_req_remove_by_index(drc); 3302 } 3303 3304 static void spapr_core_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 3305 Error **errp) 3306 { 3307 sPAPRMachineState *spapr = SPAPR_MACHINE(OBJECT(hotplug_dev)); 3308 MachineClass *mc = MACHINE_GET_CLASS(spapr); 3309 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 3310 sPAPRCPUCore *core = SPAPR_CPU_CORE(OBJECT(dev)); 3311 CPUCore *cc = CPU_CORE(dev); 3312 CPUState *cs = CPU(core->threads[0]); 3313 sPAPRDRConnector *drc; 3314 Error *local_err = NULL; 3315 int smt = kvmppc_smt_threads(); 3316 CPUArchId *core_slot; 3317 int index; 3318 bool hotplugged = spapr_drc_hotplugged(dev); 3319 3320 core_slot = spapr_find_cpu_slot(MACHINE(hotplug_dev), cc->core_id, &index); 3321 if (!core_slot) { 3322 error_setg(errp, "Unable to find CPU core with core-id: %d", 3323 cc->core_id); 3324 return; 3325 } 3326 drc = spapr_drc_by_id(TYPE_SPAPR_DRC_CPU, index * smt); 3327 3328 g_assert(drc || !mc->has_hotpluggable_cpus); 3329 3330 if (drc) { 3331 void *fdt; 3332 int fdt_offset; 3333 3334 fdt = spapr_populate_hotplug_cpu_dt(cs, &fdt_offset, spapr); 3335 3336 spapr_drc_attach(drc, dev, fdt, fdt_offset, &local_err); 3337 if (local_err) { 3338 g_free(fdt); 3339 error_propagate(errp, local_err); 3340 return; 3341 } 3342 3343 if (hotplugged) { 3344 /* 3345 * Send hotplug notification interrupt to the guest only 3346 * in case of hotplugged CPUs. 3347 */ 3348 spapr_hotplug_req_add_by_index(drc); 3349 } else { 3350 spapr_drc_reset(drc); 3351 } 3352 } 3353 3354 core_slot->cpu = OBJECT(dev); 3355 3356 if (smc->pre_2_10_has_unused_icps) { 3357 int i; 3358 3359 for (i = 0; i < cc->nr_threads; i++) { 3360 cs = CPU(core->threads[i]); 3361 pre_2_10_vmstate_unregister_dummy_icp(cs->cpu_index); 3362 } 3363 } 3364 } 3365 3366 static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 3367 Error **errp) 3368 { 3369 MachineState *machine = MACHINE(OBJECT(hotplug_dev)); 3370 MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev); 3371 Error *local_err = NULL; 3372 CPUCore *cc = CPU_CORE(dev); 3373 const char *base_core_type = spapr_get_cpu_core_type(machine->cpu_type); 3374 const char *type = object_get_typename(OBJECT(dev)); 3375 CPUArchId *core_slot; 3376 int index; 3377 3378 if (dev->hotplugged && !mc->has_hotpluggable_cpus) { 3379 error_setg(&local_err, "CPU hotplug not supported for this machine"); 3380 goto out; 3381 } 3382 3383 if (strcmp(base_core_type, type)) { 3384 error_setg(&local_err, "CPU core type should be %s", base_core_type); 3385 goto out; 3386 } 3387 3388 if (cc->core_id % smp_threads) { 3389 error_setg(&local_err, "invalid core id %d", cc->core_id); 3390 goto out; 3391 } 3392 3393 /* 3394 * In general we should have homogeneous threads-per-core, but old 3395 * (pre hotplug support) machine types allow the last core to have 3396 * reduced threads as a compatibility hack for when we allowed 3397 * total vcpus not a multiple of threads-per-core. 3398 */ 3399 if (mc->has_hotpluggable_cpus && (cc->nr_threads != smp_threads)) { 3400 error_setg(&local_err, "invalid nr-threads %d, must be %d", 3401 cc->nr_threads, smp_threads); 3402 goto out; 3403 } 3404 3405 core_slot = spapr_find_cpu_slot(MACHINE(hotplug_dev), cc->core_id, &index); 3406 if (!core_slot) { 3407 error_setg(&local_err, "core id %d out of range", cc->core_id); 3408 goto out; 3409 } 3410 3411 if (core_slot->cpu) { 3412 error_setg(&local_err, "core %d already populated", cc->core_id); 3413 goto out; 3414 } 3415 3416 numa_cpu_pre_plug(core_slot, dev, &local_err); 3417 3418 out: 3419 error_propagate(errp, local_err); 3420 } 3421 3422 static void spapr_machine_device_plug(HotplugHandler *hotplug_dev, 3423 DeviceState *dev, Error **errp) 3424 { 3425 MachineState *ms = MACHINE(hotplug_dev); 3426 sPAPRMachineClass *smc = SPAPR_MACHINE_GET_CLASS(ms); 3427 3428 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 3429 int node; 3430 3431 if (!smc->dr_lmb_enabled) { 3432 error_setg(errp, "Memory hotplug not supported for this machine"); 3433 return; 3434 } 3435 node = object_property_get_uint(OBJECT(dev), PC_DIMM_NODE_PROP, errp); 3436 if (*errp) { 3437 return; 3438 } 3439 if (node < 0 || node >= MAX_NODES) { 3440 error_setg(errp, "Invaild node %d", node); 3441 return; 3442 } 3443 3444 /* 3445 * Currently PowerPC kernel doesn't allow hot-adding memory to 3446 * memory-less node, but instead will silently add the memory 3447 * to the first node that has some memory. This causes two 3448 * unexpected behaviours for the user. 3449 * 3450 * - Memory gets hotplugged to a different node than what the user 3451 * specified. 3452 * - Since pc-dimm subsystem in QEMU still thinks that memory belongs 3453 * to memory-less node, a reboot will set things accordingly 3454 * and the previously hotplugged memory now ends in the right node. 3455 * This appears as if some memory moved from one node to another. 3456 * 3457 * So until kernel starts supporting memory hotplug to memory-less 3458 * nodes, just prevent such attempts upfront in QEMU. 3459 */ 3460 if (nb_numa_nodes && !numa_info[node].node_mem) { 3461 error_setg(errp, "Can't hotplug memory to memory-less node %d", 3462 node); 3463 return; 3464 } 3465 3466 spapr_memory_plug(hotplug_dev, dev, node, errp); 3467 } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) { 3468 spapr_core_plug(hotplug_dev, dev, errp); 3469 } 3470 } 3471 3472 static void spapr_machine_device_unplug_request(HotplugHandler *hotplug_dev, 3473 DeviceState *dev, Error **errp) 3474 { 3475 sPAPRMachineState *sms = SPAPR_MACHINE(OBJECT(hotplug_dev)); 3476 MachineClass *mc = MACHINE_GET_CLASS(sms); 3477 3478 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 3479 if (spapr_ovec_test(sms->ov5_cas, OV5_HP_EVT)) { 3480 spapr_memory_unplug_request(hotplug_dev, dev, errp); 3481 } else { 3482 /* NOTE: this means there is a window after guest reset, prior to 3483 * CAS negotiation, where unplug requests will fail due to the 3484 * capability not being detected yet. This is a bit different than 3485 * the case with PCI unplug, where the events will be queued and 3486 * eventually handled by the guest after boot 3487 */ 3488 error_setg(errp, "Memory hot unplug not supported for this guest"); 3489 } 3490 } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) { 3491 if (!mc->has_hotpluggable_cpus) { 3492 error_setg(errp, "CPU hot unplug not supported on this machine"); 3493 return; 3494 } 3495 spapr_core_unplug_request(hotplug_dev, dev, errp); 3496 } 3497 } 3498 3499 static void spapr_machine_device_pre_plug(HotplugHandler *hotplug_dev, 3500 DeviceState *dev, Error **errp) 3501 { 3502 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 3503 spapr_memory_pre_plug(hotplug_dev, dev, errp); 3504 } else if (object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) { 3505 spapr_core_pre_plug(hotplug_dev, dev, errp); 3506 } 3507 } 3508 3509 static HotplugHandler *spapr_get_hotplug_handler(MachineState *machine, 3510 DeviceState *dev) 3511 { 3512 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || 3513 object_dynamic_cast(OBJECT(dev), TYPE_SPAPR_CPU_CORE)) { 3514 return HOTPLUG_HANDLER(machine); 3515 } 3516 return NULL; 3517 } 3518 3519 static CpuInstanceProperties 3520 spapr_cpu_index_to_props(MachineState *machine, unsigned cpu_index) 3521 { 3522 CPUArchId *core_slot; 3523 MachineClass *mc = MACHINE_GET_CLASS(machine); 3524 3525 /* make sure possible_cpu are intialized */ 3526 mc->possible_cpu_arch_ids(machine); 3527 /* get CPU core slot containing thread that matches cpu_index */ 3528 core_slot = spapr_find_cpu_slot(machine, cpu_index, NULL); 3529 assert(core_slot); 3530 return core_slot->props; 3531 } 3532 3533 static int64_t spapr_get_default_cpu_node_id(const MachineState *ms, int idx) 3534 { 3535 return idx / smp_cores % nb_numa_nodes; 3536 } 3537 3538 static const CPUArchIdList *spapr_possible_cpu_arch_ids(MachineState *machine) 3539 { 3540 int i; 3541 const char *core_type; 3542 int spapr_max_cores = max_cpus / smp_threads; 3543 MachineClass *mc = MACHINE_GET_CLASS(machine); 3544 3545 if (!mc->has_hotpluggable_cpus) { 3546 spapr_max_cores = QEMU_ALIGN_UP(smp_cpus, smp_threads) / smp_threads; 3547 } 3548 if (machine->possible_cpus) { 3549 assert(machine->possible_cpus->len == spapr_max_cores); 3550 return machine->possible_cpus; 3551 } 3552 3553 core_type = spapr_get_cpu_core_type(machine->cpu_type); 3554 if (!core_type) { 3555 error_report("Unable to find sPAPR CPU Core definition"); 3556 exit(1); 3557 } 3558 3559 machine->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + 3560 sizeof(CPUArchId) * spapr_max_cores); 3561 machine->possible_cpus->len = spapr_max_cores; 3562 for (i = 0; i < machine->possible_cpus->len; i++) { 3563 int core_id = i * smp_threads; 3564 3565 machine->possible_cpus->cpus[i].type = core_type; 3566 machine->possible_cpus->cpus[i].vcpus_count = smp_threads; 3567 machine->possible_cpus->cpus[i].arch_id = core_id; 3568 machine->possible_cpus->cpus[i].props.has_core_id = true; 3569 machine->possible_cpus->cpus[i].props.core_id = core_id; 3570 } 3571 return machine->possible_cpus; 3572 } 3573 3574 static void spapr_phb_placement(sPAPRMachineState *spapr, uint32_t index, 3575 uint64_t *buid, hwaddr *pio, 3576 hwaddr *mmio32, hwaddr *mmio64, 3577 unsigned n_dma, uint32_t *liobns, Error **errp) 3578 { 3579 /* 3580 * New-style PHB window placement. 3581 * 3582 * Goals: Gives large (1TiB), naturally aligned 64-bit MMIO window 3583 * for each PHB, in addition to 2GiB 32-bit MMIO and 64kiB PIO 3584 * windows. 3585 * 3586 * Some guest kernels can't work with MMIO windows above 1<<46 3587 * (64TiB), so we place up to 31 PHBs in the area 32TiB..64TiB 3588 * 3589 * 32TiB..(33TiB+1984kiB) contains the 64kiB PIO windows for each 3590 * PHB stacked together. (32TiB+2GiB)..(32TiB+64GiB) contains the 3591 * 2GiB 32-bit MMIO windows for each PHB. Then 33..64TiB has the 3592 * 1TiB 64-bit MMIO windows for each PHB. 3593 */ 3594 const uint64_t base_buid = 0x800000020000000ULL; 3595 #define SPAPR_MAX_PHBS ((SPAPR_PCI_LIMIT - SPAPR_PCI_BASE) / \ 3596 SPAPR_PCI_MEM64_WIN_SIZE - 1) 3597 int i; 3598 3599 /* Sanity check natural alignments */ 3600 QEMU_BUILD_BUG_ON((SPAPR_PCI_BASE % SPAPR_PCI_MEM64_WIN_SIZE) != 0); 3601 QEMU_BUILD_BUG_ON((SPAPR_PCI_LIMIT % SPAPR_PCI_MEM64_WIN_SIZE) != 0); 3602 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM64_WIN_SIZE % SPAPR_PCI_MEM32_WIN_SIZE) != 0); 3603 QEMU_BUILD_BUG_ON((SPAPR_PCI_MEM32_WIN_SIZE % SPAPR_PCI_IO_WIN_SIZE) != 0); 3604 /* Sanity check bounds */ 3605 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS * SPAPR_PCI_IO_WIN_SIZE) > 3606 SPAPR_PCI_MEM32_WIN_SIZE); 3607 QEMU_BUILD_BUG_ON((SPAPR_MAX_PHBS * SPAPR_PCI_MEM32_WIN_SIZE) > 3608 SPAPR_PCI_MEM64_WIN_SIZE); 3609 3610 if (index >= SPAPR_MAX_PHBS) { 3611 error_setg(errp, "\"index\" for PAPR PHB is too large (max %llu)", 3612 SPAPR_MAX_PHBS - 1); 3613 return; 3614 } 3615 3616 *buid = base_buid + index; 3617 for (i = 0; i < n_dma; ++i) { 3618 liobns[i] = SPAPR_PCI_LIOBN(index, i); 3619 } 3620 3621 *pio = SPAPR_PCI_BASE + index * SPAPR_PCI_IO_WIN_SIZE; 3622 *mmio32 = SPAPR_PCI_BASE + (index + 1) * SPAPR_PCI_MEM32_WIN_SIZE; 3623 *mmio64 = SPAPR_PCI_BASE + (index + 1) * SPAPR_PCI_MEM64_WIN_SIZE; 3624 } 3625 3626 static ICSState *spapr_ics_get(XICSFabric *dev, int irq) 3627 { 3628 sPAPRMachineState *spapr = SPAPR_MACHINE(dev); 3629 3630 return ics_valid_irq(spapr->ics, irq) ? spapr->ics : NULL; 3631 } 3632 3633 static void spapr_ics_resend(XICSFabric *dev) 3634 { 3635 sPAPRMachineState *spapr = SPAPR_MACHINE(dev); 3636 3637 ics_resend(spapr->ics); 3638 } 3639 3640 static ICPState *spapr_icp_get(XICSFabric *xi, int vcpu_id) 3641 { 3642 PowerPCCPU *cpu = spapr_find_cpu(vcpu_id); 3643 3644 return cpu ? ICP(cpu->intc) : NULL; 3645 } 3646 3647 #define ICS_IRQ_FREE(ics, srcno) \ 3648 (!((ics)->irqs[(srcno)].flags & (XICS_FLAGS_IRQ_MASK))) 3649 3650 static int ics_find_free_block(ICSState *ics, int num, int alignnum) 3651 { 3652 int first, i; 3653 3654 for (first = 0; first < ics->nr_irqs; first += alignnum) { 3655 if (num > (ics->nr_irqs - first)) { 3656 return -1; 3657 } 3658 for (i = first; i < first + num; ++i) { 3659 if (!ICS_IRQ_FREE(ics, i)) { 3660 break; 3661 } 3662 } 3663 if (i == (first + num)) { 3664 return first; 3665 } 3666 } 3667 3668 return -1; 3669 } 3670 3671 /* 3672 * Allocate the IRQ number and set the IRQ type, LSI or MSI 3673 */ 3674 static void spapr_irq_set_lsi(sPAPRMachineState *spapr, int irq, bool lsi) 3675 { 3676 ics_set_irq_type(spapr->ics, irq - spapr->ics->offset, lsi); 3677 } 3678 3679 int spapr_irq_alloc(sPAPRMachineState *spapr, int irq_hint, bool lsi, 3680 Error **errp) 3681 { 3682 ICSState *ics = spapr->ics; 3683 int irq; 3684 3685 if (!ics) { 3686 return -1; 3687 } 3688 if (irq_hint) { 3689 if (!ICS_IRQ_FREE(ics, irq_hint - ics->offset)) { 3690 error_setg(errp, "can't allocate IRQ %d: already in use", irq_hint); 3691 return -1; 3692 } 3693 irq = irq_hint; 3694 } else { 3695 irq = ics_find_free_block(ics, 1, 1); 3696 if (irq < 0) { 3697 error_setg(errp, "can't allocate IRQ: no IRQ left"); 3698 return -1; 3699 } 3700 irq += ics->offset; 3701 } 3702 3703 spapr_irq_set_lsi(spapr, irq, lsi); 3704 trace_spapr_irq_alloc(irq); 3705 3706 return irq; 3707 } 3708 3709 /* 3710 * Allocate block of consecutive IRQs, and return the number of the first IRQ in 3711 * the block. If align==true, aligns the first IRQ number to num. 3712 */ 3713 int spapr_irq_alloc_block(sPAPRMachineState *spapr, int num, bool lsi, 3714 bool align, Error **errp) 3715 { 3716 ICSState *ics = spapr->ics; 3717 int i, first = -1; 3718 3719 if (!ics) { 3720 return -1; 3721 } 3722 3723 /* 3724 * MSIMesage::data is used for storing VIRQ so 3725 * it has to be aligned to num to support multiple 3726 * MSI vectors. MSI-X is not affected by this. 3727 * The hint is used for the first IRQ, the rest should 3728 * be allocated continuously. 3729 */ 3730 if (align) { 3731 assert((num == 1) || (num == 2) || (num == 4) || 3732 (num == 8) || (num == 16) || (num == 32)); 3733 first = ics_find_free_block(ics, num, num); 3734 } else { 3735 first = ics_find_free_block(ics, num, 1); 3736 } 3737 if (first < 0) { 3738 error_setg(errp, "can't find a free %d-IRQ block", num); 3739 return -1; 3740 } 3741 3742 first += ics->offset; 3743 for (i = first; i < first + num; ++i) { 3744 spapr_irq_set_lsi(spapr, i, lsi); 3745 } 3746 3747 trace_spapr_irq_alloc_block(first, num, lsi, align); 3748 3749 return first; 3750 } 3751 3752 void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num) 3753 { 3754 ICSState *ics = spapr->ics; 3755 int srcno = irq - ics->offset; 3756 int i; 3757 3758 if (ics_valid_irq(ics, irq)) { 3759 trace_spapr_irq_free(0, irq, num); 3760 for (i = srcno; i < srcno + num; ++i) { 3761 if (ICS_IRQ_FREE(ics, i)) { 3762 trace_spapr_irq_free_warn(0, i + ics->offset); 3763 } 3764 memset(&ics->irqs[i], 0, sizeof(ICSIRQState)); 3765 } 3766 } 3767 } 3768 3769 qemu_irq spapr_qirq(sPAPRMachineState *spapr, int irq) 3770 { 3771 ICSState *ics = spapr->ics; 3772 3773 if (ics_valid_irq(ics, irq)) { 3774 return ics->qirqs[irq - ics->offset]; 3775 } 3776 3777 return NULL; 3778 } 3779 3780 static void spapr_pic_print_info(InterruptStatsProvider *obj, 3781 Monitor *mon) 3782 { 3783 sPAPRMachineState *spapr = SPAPR_MACHINE(obj); 3784 CPUState *cs; 3785 3786 CPU_FOREACH(cs) { 3787 PowerPCCPU *cpu = POWERPC_CPU(cs); 3788 3789 icp_pic_print_info(ICP(cpu->intc), mon); 3790 } 3791 3792 ics_pic_print_info(spapr->ics, mon); 3793 } 3794 3795 int spapr_vcpu_id(PowerPCCPU *cpu) 3796 { 3797 CPUState *cs = CPU(cpu); 3798 3799 if (kvm_enabled()) { 3800 return kvm_arch_vcpu_id(cs); 3801 } else { 3802 return cs->cpu_index; 3803 } 3804 } 3805 3806 PowerPCCPU *spapr_find_cpu(int vcpu_id) 3807 { 3808 CPUState *cs; 3809 3810 CPU_FOREACH(cs) { 3811 PowerPCCPU *cpu = POWERPC_CPU(cs); 3812 3813 if (spapr_vcpu_id(cpu) == vcpu_id) { 3814 return cpu; 3815 } 3816 } 3817 3818 return NULL; 3819 } 3820 3821 static void spapr_machine_class_init(ObjectClass *oc, void *data) 3822 { 3823 MachineClass *mc = MACHINE_CLASS(oc); 3824 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(oc); 3825 FWPathProviderClass *fwc = FW_PATH_PROVIDER_CLASS(oc); 3826 NMIClass *nc = NMI_CLASS(oc); 3827 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 3828 PPCVirtualHypervisorClass *vhc = PPC_VIRTUAL_HYPERVISOR_CLASS(oc); 3829 XICSFabricClass *xic = XICS_FABRIC_CLASS(oc); 3830 InterruptStatsProviderClass *ispc = INTERRUPT_STATS_PROVIDER_CLASS(oc); 3831 3832 mc->desc = "pSeries Logical Partition (PAPR compliant)"; 3833 3834 /* 3835 * We set up the default / latest behaviour here. The class_init 3836 * functions for the specific versioned machine types can override 3837 * these details for backwards compatibility 3838 */ 3839 mc->init = spapr_machine_init; 3840 mc->reset = spapr_machine_reset; 3841 mc->block_default_type = IF_SCSI; 3842 mc->max_cpus = 1024; 3843 mc->no_parallel = 1; 3844 mc->default_boot_order = ""; 3845 mc->default_ram_size = 512 * M_BYTE; 3846 mc->kvm_type = spapr_kvm_type; 3847 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_SPAPR_PCI_HOST_BRIDGE); 3848 mc->pci_allow_0_address = true; 3849 mc->get_hotplug_handler = spapr_get_hotplug_handler; 3850 hc->pre_plug = spapr_machine_device_pre_plug; 3851 hc->plug = spapr_machine_device_plug; 3852 mc->cpu_index_to_instance_props = spapr_cpu_index_to_props; 3853 mc->get_default_cpu_node_id = spapr_get_default_cpu_node_id; 3854 mc->possible_cpu_arch_ids = spapr_possible_cpu_arch_ids; 3855 hc->unplug_request = spapr_machine_device_unplug_request; 3856 3857 smc->dr_lmb_enabled = true; 3858 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power8_v2.0"); 3859 mc->has_hotpluggable_cpus = true; 3860 smc->resize_hpt_default = SPAPR_RESIZE_HPT_ENABLED; 3861 fwc->get_dev_path = spapr_get_fw_dev_path; 3862 nc->nmi_monitor_handler = spapr_nmi; 3863 smc->phb_placement = spapr_phb_placement; 3864 vhc->hypercall = emulate_spapr_hypercall; 3865 vhc->hpt_mask = spapr_hpt_mask; 3866 vhc->map_hptes = spapr_map_hptes; 3867 vhc->unmap_hptes = spapr_unmap_hptes; 3868 vhc->store_hpte = spapr_store_hpte; 3869 vhc->get_patbe = spapr_get_patbe; 3870 vhc->encode_hpt_for_kvm_pr = spapr_encode_hpt_for_kvm_pr; 3871 xic->ics_get = spapr_ics_get; 3872 xic->ics_resend = spapr_ics_resend; 3873 xic->icp_get = spapr_icp_get; 3874 ispc->print_info = spapr_pic_print_info; 3875 /* Force NUMA node memory size to be a multiple of 3876 * SPAPR_MEMORY_BLOCK_SIZE (256M) since that's the granularity 3877 * in which LMBs are represented and hot-added 3878 */ 3879 mc->numa_mem_align_shift = 28; 3880 3881 smc->default_caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_OFF; 3882 smc->default_caps.caps[SPAPR_CAP_VSX] = SPAPR_CAP_ON; 3883 smc->default_caps.caps[SPAPR_CAP_DFP] = SPAPR_CAP_ON; 3884 spapr_caps_add_properties(smc, &error_abort); 3885 } 3886 3887 static const TypeInfo spapr_machine_info = { 3888 .name = TYPE_SPAPR_MACHINE, 3889 .parent = TYPE_MACHINE, 3890 .abstract = true, 3891 .instance_size = sizeof(sPAPRMachineState), 3892 .instance_init = spapr_instance_init, 3893 .instance_finalize = spapr_machine_finalizefn, 3894 .class_size = sizeof(sPAPRMachineClass), 3895 .class_init = spapr_machine_class_init, 3896 .interfaces = (InterfaceInfo[]) { 3897 { TYPE_FW_PATH_PROVIDER }, 3898 { TYPE_NMI }, 3899 { TYPE_HOTPLUG_HANDLER }, 3900 { TYPE_PPC_VIRTUAL_HYPERVISOR }, 3901 { TYPE_XICS_FABRIC }, 3902 { TYPE_INTERRUPT_STATS_PROVIDER }, 3903 { } 3904 }, 3905 }; 3906 3907 #define DEFINE_SPAPR_MACHINE(suffix, verstr, latest) \ 3908 static void spapr_machine_##suffix##_class_init(ObjectClass *oc, \ 3909 void *data) \ 3910 { \ 3911 MachineClass *mc = MACHINE_CLASS(oc); \ 3912 spapr_machine_##suffix##_class_options(mc); \ 3913 if (latest) { \ 3914 mc->alias = "pseries"; \ 3915 mc->is_default = 1; \ 3916 } \ 3917 } \ 3918 static void spapr_machine_##suffix##_instance_init(Object *obj) \ 3919 { \ 3920 MachineState *machine = MACHINE(obj); \ 3921 spapr_machine_##suffix##_instance_options(machine); \ 3922 } \ 3923 static const TypeInfo spapr_machine_##suffix##_info = { \ 3924 .name = MACHINE_TYPE_NAME("pseries-" verstr), \ 3925 .parent = TYPE_SPAPR_MACHINE, \ 3926 .class_init = spapr_machine_##suffix##_class_init, \ 3927 .instance_init = spapr_machine_##suffix##_instance_init, \ 3928 }; \ 3929 static void spapr_machine_register_##suffix(void) \ 3930 { \ 3931 type_register(&spapr_machine_##suffix##_info); \ 3932 } \ 3933 type_init(spapr_machine_register_##suffix) 3934 3935 /* 3936 * pseries-2.12 3937 */ 3938 static void spapr_machine_2_12_instance_options(MachineState *machine) 3939 { 3940 } 3941 3942 static void spapr_machine_2_12_class_options(MachineClass *mc) 3943 { 3944 /* Defaults for the latest behaviour inherited from the base class */ 3945 } 3946 3947 DEFINE_SPAPR_MACHINE(2_12, "2.12", true); 3948 3949 /* 3950 * pseries-2.11 3951 */ 3952 #define SPAPR_COMPAT_2_11 \ 3953 HW_COMPAT_2_11 3954 3955 static void spapr_machine_2_11_instance_options(MachineState *machine) 3956 { 3957 spapr_machine_2_12_instance_options(machine); 3958 } 3959 3960 static void spapr_machine_2_11_class_options(MachineClass *mc) 3961 { 3962 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 3963 3964 spapr_machine_2_12_class_options(mc); 3965 smc->default_caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_ON; 3966 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_11); 3967 } 3968 3969 DEFINE_SPAPR_MACHINE(2_11, "2.11", false); 3970 3971 /* 3972 * pseries-2.10 3973 */ 3974 #define SPAPR_COMPAT_2_10 \ 3975 HW_COMPAT_2_10 3976 3977 static void spapr_machine_2_10_instance_options(MachineState *machine) 3978 { 3979 spapr_machine_2_11_instance_options(machine); 3980 } 3981 3982 static void spapr_machine_2_10_class_options(MachineClass *mc) 3983 { 3984 spapr_machine_2_11_class_options(mc); 3985 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_10); 3986 } 3987 3988 DEFINE_SPAPR_MACHINE(2_10, "2.10", false); 3989 3990 /* 3991 * pseries-2.9 3992 */ 3993 #define SPAPR_COMPAT_2_9 \ 3994 HW_COMPAT_2_9 \ 3995 { \ 3996 .driver = TYPE_POWERPC_CPU, \ 3997 .property = "pre-2.10-migration", \ 3998 .value = "on", \ 3999 }, \ 4000 4001 static void spapr_machine_2_9_instance_options(MachineState *machine) 4002 { 4003 spapr_machine_2_10_instance_options(machine); 4004 } 4005 4006 static void spapr_machine_2_9_class_options(MachineClass *mc) 4007 { 4008 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 4009 4010 spapr_machine_2_10_class_options(mc); 4011 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_9); 4012 mc->numa_auto_assign_ram = numa_legacy_auto_assign_ram; 4013 smc->pre_2_10_has_unused_icps = true; 4014 smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED; 4015 } 4016 4017 DEFINE_SPAPR_MACHINE(2_9, "2.9", false); 4018 4019 /* 4020 * pseries-2.8 4021 */ 4022 #define SPAPR_COMPAT_2_8 \ 4023 HW_COMPAT_2_8 \ 4024 { \ 4025 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \ 4026 .property = "pcie-extended-configuration-space", \ 4027 .value = "off", \ 4028 }, 4029 4030 static void spapr_machine_2_8_instance_options(MachineState *machine) 4031 { 4032 spapr_machine_2_9_instance_options(machine); 4033 } 4034 4035 static void spapr_machine_2_8_class_options(MachineClass *mc) 4036 { 4037 spapr_machine_2_9_class_options(mc); 4038 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_8); 4039 mc->numa_mem_align_shift = 23; 4040 } 4041 4042 DEFINE_SPAPR_MACHINE(2_8, "2.8", false); 4043 4044 /* 4045 * pseries-2.7 4046 */ 4047 #define SPAPR_COMPAT_2_7 \ 4048 HW_COMPAT_2_7 \ 4049 { \ 4050 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \ 4051 .property = "mem_win_size", \ 4052 .value = stringify(SPAPR_PCI_2_7_MMIO_WIN_SIZE),\ 4053 }, \ 4054 { \ 4055 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \ 4056 .property = "mem64_win_size", \ 4057 .value = "0", \ 4058 }, \ 4059 { \ 4060 .driver = TYPE_POWERPC_CPU, \ 4061 .property = "pre-2.8-migration", \ 4062 .value = "on", \ 4063 }, \ 4064 { \ 4065 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE, \ 4066 .property = "pre-2.8-migration", \ 4067 .value = "on", \ 4068 }, 4069 4070 static void phb_placement_2_7(sPAPRMachineState *spapr, uint32_t index, 4071 uint64_t *buid, hwaddr *pio, 4072 hwaddr *mmio32, hwaddr *mmio64, 4073 unsigned n_dma, uint32_t *liobns, Error **errp) 4074 { 4075 /* Legacy PHB placement for pseries-2.7 and earlier machine types */ 4076 const uint64_t base_buid = 0x800000020000000ULL; 4077 const hwaddr phb_spacing = 0x1000000000ULL; /* 64 GiB */ 4078 const hwaddr mmio_offset = 0xa0000000; /* 2 GiB + 512 MiB */ 4079 const hwaddr pio_offset = 0x80000000; /* 2 GiB */ 4080 const uint32_t max_index = 255; 4081 const hwaddr phb0_alignment = 0x10000000000ULL; /* 1 TiB */ 4082 4083 uint64_t ram_top = MACHINE(spapr)->ram_size; 4084 hwaddr phb0_base, phb_base; 4085 int i; 4086 4087 /* Do we have hotpluggable memory? */ 4088 if (MACHINE(spapr)->maxram_size > ram_top) { 4089 /* Can't just use maxram_size, because there may be an 4090 * alignment gap between normal and hotpluggable memory 4091 * regions */ 4092 ram_top = spapr->hotplug_memory.base + 4093 memory_region_size(&spapr->hotplug_memory.mr); 4094 } 4095 4096 phb0_base = QEMU_ALIGN_UP(ram_top, phb0_alignment); 4097 4098 if (index > max_index) { 4099 error_setg(errp, "\"index\" for PAPR PHB is too large (max %u)", 4100 max_index); 4101 return; 4102 } 4103 4104 *buid = base_buid + index; 4105 for (i = 0; i < n_dma; ++i) { 4106 liobns[i] = SPAPR_PCI_LIOBN(index, i); 4107 } 4108 4109 phb_base = phb0_base + index * phb_spacing; 4110 *pio = phb_base + pio_offset; 4111 *mmio32 = phb_base + mmio_offset; 4112 /* 4113 * We don't set the 64-bit MMIO window, relying on the PHB's 4114 * fallback behaviour of automatically splitting a large "32-bit" 4115 * window into contiguous 32-bit and 64-bit windows 4116 */ 4117 } 4118 4119 static void spapr_machine_2_7_instance_options(MachineState *machine) 4120 { 4121 sPAPRMachineState *spapr = SPAPR_MACHINE(machine); 4122 4123 spapr_machine_2_8_instance_options(machine); 4124 spapr->use_hotplug_event_source = false; 4125 } 4126 4127 static void spapr_machine_2_7_class_options(MachineClass *mc) 4128 { 4129 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 4130 4131 spapr_machine_2_8_class_options(mc); 4132 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power7_v2.3"); 4133 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_7); 4134 smc->phb_placement = phb_placement_2_7; 4135 } 4136 4137 DEFINE_SPAPR_MACHINE(2_7, "2.7", false); 4138 4139 /* 4140 * pseries-2.6 4141 */ 4142 #define SPAPR_COMPAT_2_6 \ 4143 HW_COMPAT_2_6 \ 4144 { \ 4145 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\ 4146 .property = "ddw",\ 4147 .value = stringify(off),\ 4148 }, 4149 4150 static void spapr_machine_2_6_instance_options(MachineState *machine) 4151 { 4152 spapr_machine_2_7_instance_options(machine); 4153 } 4154 4155 static void spapr_machine_2_6_class_options(MachineClass *mc) 4156 { 4157 spapr_machine_2_7_class_options(mc); 4158 mc->has_hotpluggable_cpus = false; 4159 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_6); 4160 } 4161 4162 DEFINE_SPAPR_MACHINE(2_6, "2.6", false); 4163 4164 /* 4165 * pseries-2.5 4166 */ 4167 #define SPAPR_COMPAT_2_5 \ 4168 HW_COMPAT_2_5 \ 4169 { \ 4170 .driver = "spapr-vlan", \ 4171 .property = "use-rx-buffer-pools", \ 4172 .value = "off", \ 4173 }, 4174 4175 static void spapr_machine_2_5_instance_options(MachineState *machine) 4176 { 4177 spapr_machine_2_6_instance_options(machine); 4178 } 4179 4180 static void spapr_machine_2_5_class_options(MachineClass *mc) 4181 { 4182 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 4183 4184 spapr_machine_2_6_class_options(mc); 4185 smc->use_ohci_by_default = true; 4186 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_5); 4187 } 4188 4189 DEFINE_SPAPR_MACHINE(2_5, "2.5", false); 4190 4191 /* 4192 * pseries-2.4 4193 */ 4194 #define SPAPR_COMPAT_2_4 \ 4195 HW_COMPAT_2_4 4196 4197 static void spapr_machine_2_4_instance_options(MachineState *machine) 4198 { 4199 spapr_machine_2_5_instance_options(machine); 4200 } 4201 4202 static void spapr_machine_2_4_class_options(MachineClass *mc) 4203 { 4204 sPAPRMachineClass *smc = SPAPR_MACHINE_CLASS(mc); 4205 4206 spapr_machine_2_5_class_options(mc); 4207 smc->dr_lmb_enabled = false; 4208 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_4); 4209 } 4210 4211 DEFINE_SPAPR_MACHINE(2_4, "2.4", false); 4212 4213 /* 4214 * pseries-2.3 4215 */ 4216 #define SPAPR_COMPAT_2_3 \ 4217 HW_COMPAT_2_3 \ 4218 {\ 4219 .driver = "spapr-pci-host-bridge",\ 4220 .property = "dynamic-reconfiguration",\ 4221 .value = "off",\ 4222 }, 4223 4224 static void spapr_machine_2_3_instance_options(MachineState *machine) 4225 { 4226 spapr_machine_2_4_instance_options(machine); 4227 } 4228 4229 static void spapr_machine_2_3_class_options(MachineClass *mc) 4230 { 4231 spapr_machine_2_4_class_options(mc); 4232 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_3); 4233 } 4234 DEFINE_SPAPR_MACHINE(2_3, "2.3", false); 4235 4236 /* 4237 * pseries-2.2 4238 */ 4239 4240 #define SPAPR_COMPAT_2_2 \ 4241 HW_COMPAT_2_2 \ 4242 {\ 4243 .driver = TYPE_SPAPR_PCI_HOST_BRIDGE,\ 4244 .property = "mem_win_size",\ 4245 .value = "0x20000000",\ 4246 }, 4247 4248 static void spapr_machine_2_2_instance_options(MachineState *machine) 4249 { 4250 spapr_machine_2_3_instance_options(machine); 4251 machine->suppress_vmdesc = true; 4252 } 4253 4254 static void spapr_machine_2_2_class_options(MachineClass *mc) 4255 { 4256 spapr_machine_2_3_class_options(mc); 4257 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_2); 4258 } 4259 DEFINE_SPAPR_MACHINE(2_2, "2.2", false); 4260 4261 /* 4262 * pseries-2.1 4263 */ 4264 #define SPAPR_COMPAT_2_1 \ 4265 HW_COMPAT_2_1 4266 4267 static void spapr_machine_2_1_instance_options(MachineState *machine) 4268 { 4269 spapr_machine_2_2_instance_options(machine); 4270 } 4271 4272 static void spapr_machine_2_1_class_options(MachineClass *mc) 4273 { 4274 spapr_machine_2_2_class_options(mc); 4275 SET_MACHINE_COMPAT(mc, SPAPR_COMPAT_2_1); 4276 } 4277 DEFINE_SPAPR_MACHINE(2_1, "2.1", false); 4278 4279 static void spapr_machine_register_types(void) 4280 { 4281 type_register_static(&spapr_machine_info); 4282 } 4283 4284 type_init(spapr_machine_register_types) 4285