1 /* 2 * QEMU PC System Emulator 3 * 4 * Copyright (c) 2003-2004 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "qemu/osdep.h" 26 #include "qemu/units.h" 27 #include "hw/i386/x86.h" 28 #include "hw/i386/pc.h" 29 #include "hw/char/serial.h" 30 #include "hw/char/parallel.h" 31 #include "hw/i386/apic.h" 32 #include "hw/i386/topology.h" 33 #include "hw/i386/fw_cfg.h" 34 #include "sysemu/cpus.h" 35 #include "hw/block/fdc.h" 36 #include "hw/ide.h" 37 #include "hw/pci/pci.h" 38 #include "hw/pci/pci_bus.h" 39 #include "hw/nvram/fw_cfg.h" 40 #include "hw/timer/hpet.h" 41 #include "hw/firmware/smbios.h" 42 #include "hw/loader.h" 43 #include "elf.h" 44 #include "migration/vmstate.h" 45 #include "multiboot.h" 46 #include "hw/rtc/mc146818rtc.h" 47 #include "hw/intc/i8259.h" 48 #include "hw/dma/i8257.h" 49 #include "hw/timer/i8254.h" 50 #include "hw/input/i8042.h" 51 #include "hw/irq.h" 52 #include "hw/audio/pcspk.h" 53 #include "hw/pci/msi.h" 54 #include "hw/sysbus.h" 55 #include "sysemu/sysemu.h" 56 #include "sysemu/tcg.h" 57 #include "sysemu/numa.h" 58 #include "sysemu/kvm.h" 59 #include "sysemu/qtest.h" 60 #include "sysemu/reset.h" 61 #include "sysemu/runstate.h" 62 #include "kvm_i386.h" 63 #include "hw/xen/xen.h" 64 #include "hw/xen/start_info.h" 65 #include "ui/qemu-spice.h" 66 #include "exec/memory.h" 67 #include "exec/address-spaces.h" 68 #include "sysemu/arch_init.h" 69 #include "qemu/bitmap.h" 70 #include "qemu/config-file.h" 71 #include "qemu/error-report.h" 72 #include "qemu/option.h" 73 #include "qemu/cutils.h" 74 #include "hw/acpi/acpi.h" 75 #include "hw/acpi/cpu_hotplug.h" 76 #include "hw/boards.h" 77 #include "acpi-build.h" 78 #include "hw/mem/pc-dimm.h" 79 #include "qapi/error.h" 80 #include "qapi/qapi-visit-common.h" 81 #include "qapi/visitor.h" 82 #include "hw/core/cpu.h" 83 #include "hw/usb.h" 84 #include "hw/i386/intel_iommu.h" 85 #include "hw/net/ne2000-isa.h" 86 #include "standard-headers/asm-x86/bootparam.h" 87 #include "hw/virtio/virtio-pmem-pci.h" 88 #include "hw/mem/memory-device.h" 89 #include "sysemu/replay.h" 90 #include "qapi/qmp/qerror.h" 91 #include "config-devices.h" 92 #include "e820_memory_layout.h" 93 #include "fw_cfg.h" 94 #include "trace.h" 95 96 GlobalProperty pc_compat_4_2[] = { 97 { "mch", "smbase-smram", "off" }, 98 }; 99 const size_t pc_compat_4_2_len = G_N_ELEMENTS(pc_compat_4_2); 100 101 GlobalProperty pc_compat_4_1[] = {}; 102 const size_t pc_compat_4_1_len = G_N_ELEMENTS(pc_compat_4_1); 103 104 GlobalProperty pc_compat_4_0[] = {}; 105 const size_t pc_compat_4_0_len = G_N_ELEMENTS(pc_compat_4_0); 106 107 GlobalProperty pc_compat_3_1[] = { 108 { "intel-iommu", "dma-drain", "off" }, 109 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" }, 110 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "off" }, 111 { "Opteron_G4" "-" TYPE_X86_CPU, "npt", "off" }, 112 { "Opteron_G4" "-" TYPE_X86_CPU, "nrip-save", "off" }, 113 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "off" }, 114 { "Opteron_G5" "-" TYPE_X86_CPU, "npt", "off" }, 115 { "Opteron_G5" "-" TYPE_X86_CPU, "nrip-save", "off" }, 116 { "EPYC" "-" TYPE_X86_CPU, "npt", "off" }, 117 { "EPYC" "-" TYPE_X86_CPU, "nrip-save", "off" }, 118 { "EPYC-IBPB" "-" TYPE_X86_CPU, "npt", "off" }, 119 { "EPYC-IBPB" "-" TYPE_X86_CPU, "nrip-save", "off" }, 120 { "Skylake-Client" "-" TYPE_X86_CPU, "mpx", "on" }, 121 { "Skylake-Client-IBRS" "-" TYPE_X86_CPU, "mpx", "on" }, 122 { "Skylake-Server" "-" TYPE_X86_CPU, "mpx", "on" }, 123 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "mpx", "on" }, 124 { "Cascadelake-Server" "-" TYPE_X86_CPU, "mpx", "on" }, 125 { "Icelake-Client" "-" TYPE_X86_CPU, "mpx", "on" }, 126 { "Icelake-Server" "-" TYPE_X86_CPU, "mpx", "on" }, 127 { "Cascadelake-Server" "-" TYPE_X86_CPU, "stepping", "5" }, 128 { TYPE_X86_CPU, "x-intel-pt-auto-level", "off" }, 129 }; 130 const size_t pc_compat_3_1_len = G_N_ELEMENTS(pc_compat_3_1); 131 132 GlobalProperty pc_compat_3_0[] = { 133 { TYPE_X86_CPU, "x-hv-synic-kvm-only", "on" }, 134 { "Skylake-Server" "-" TYPE_X86_CPU, "pku", "off" }, 135 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "pku", "off" }, 136 }; 137 const size_t pc_compat_3_0_len = G_N_ELEMENTS(pc_compat_3_0); 138 139 GlobalProperty pc_compat_2_12[] = { 140 { TYPE_X86_CPU, "legacy-cache", "on" }, 141 { TYPE_X86_CPU, "topoext", "off" }, 142 { "EPYC-" TYPE_X86_CPU, "xlevel", "0x8000000a" }, 143 { "EPYC-IBPB-" TYPE_X86_CPU, "xlevel", "0x8000000a" }, 144 }; 145 const size_t pc_compat_2_12_len = G_N_ELEMENTS(pc_compat_2_12); 146 147 GlobalProperty pc_compat_2_11[] = { 148 { TYPE_X86_CPU, "x-migrate-smi-count", "off" }, 149 { "Skylake-Server" "-" TYPE_X86_CPU, "clflushopt", "off" }, 150 }; 151 const size_t pc_compat_2_11_len = G_N_ELEMENTS(pc_compat_2_11); 152 153 GlobalProperty pc_compat_2_10[] = { 154 { TYPE_X86_CPU, "x-hv-max-vps", "0x40" }, 155 { "i440FX-pcihost", "x-pci-hole64-fix", "off" }, 156 { "q35-pcihost", "x-pci-hole64-fix", "off" }, 157 }; 158 const size_t pc_compat_2_10_len = G_N_ELEMENTS(pc_compat_2_10); 159 160 GlobalProperty pc_compat_2_9[] = { 161 { "mch", "extended-tseg-mbytes", "0" }, 162 }; 163 const size_t pc_compat_2_9_len = G_N_ELEMENTS(pc_compat_2_9); 164 165 GlobalProperty pc_compat_2_8[] = { 166 { TYPE_X86_CPU, "tcg-cpuid", "off" }, 167 { "kvmclock", "x-mach-use-reliable-get-clock", "off" }, 168 { "ICH9-LPC", "x-smi-broadcast", "off" }, 169 { TYPE_X86_CPU, "vmware-cpuid-freq", "off" }, 170 { "Haswell-" TYPE_X86_CPU, "stepping", "1" }, 171 }; 172 const size_t pc_compat_2_8_len = G_N_ELEMENTS(pc_compat_2_8); 173 174 GlobalProperty pc_compat_2_7[] = { 175 { TYPE_X86_CPU, "l3-cache", "off" }, 176 { TYPE_X86_CPU, "full-cpuid-auto-level", "off" }, 177 { "Opteron_G3" "-" TYPE_X86_CPU, "family", "15" }, 178 { "Opteron_G3" "-" TYPE_X86_CPU, "model", "6" }, 179 { "Opteron_G3" "-" TYPE_X86_CPU, "stepping", "1" }, 180 { "isa-pcspk", "migrate", "off" }, 181 }; 182 const size_t pc_compat_2_7_len = G_N_ELEMENTS(pc_compat_2_7); 183 184 GlobalProperty pc_compat_2_6[] = { 185 { TYPE_X86_CPU, "cpuid-0xb", "off" }, 186 { "vmxnet3", "romfile", "" }, 187 { TYPE_X86_CPU, "fill-mtrr-mask", "off" }, 188 { "apic-common", "legacy-instance-id", "on", } 189 }; 190 const size_t pc_compat_2_6_len = G_N_ELEMENTS(pc_compat_2_6); 191 192 GlobalProperty pc_compat_2_5[] = {}; 193 const size_t pc_compat_2_5_len = G_N_ELEMENTS(pc_compat_2_5); 194 195 GlobalProperty pc_compat_2_4[] = { 196 PC_CPU_MODEL_IDS("2.4.0") 197 { "Haswell-" TYPE_X86_CPU, "abm", "off" }, 198 { "Haswell-noTSX-" TYPE_X86_CPU, "abm", "off" }, 199 { "Broadwell-" TYPE_X86_CPU, "abm", "off" }, 200 { "Broadwell-noTSX-" TYPE_X86_CPU, "abm", "off" }, 201 { "host" "-" TYPE_X86_CPU, "host-cache-info", "on" }, 202 { TYPE_X86_CPU, "check", "off" }, 203 { "qemu64" "-" TYPE_X86_CPU, "sse4a", "on" }, 204 { "qemu64" "-" TYPE_X86_CPU, "abm", "on" }, 205 { "qemu64" "-" TYPE_X86_CPU, "popcnt", "on" }, 206 { "qemu32" "-" TYPE_X86_CPU, "popcnt", "on" }, 207 { "Opteron_G2" "-" TYPE_X86_CPU, "rdtscp", "on" }, 208 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "on" }, 209 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "on" }, 210 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "on", } 211 }; 212 const size_t pc_compat_2_4_len = G_N_ELEMENTS(pc_compat_2_4); 213 214 GlobalProperty pc_compat_2_3[] = { 215 PC_CPU_MODEL_IDS("2.3.0") 216 { TYPE_X86_CPU, "arat", "off" }, 217 { "qemu64" "-" TYPE_X86_CPU, "min-level", "4" }, 218 { "kvm64" "-" TYPE_X86_CPU, "min-level", "5" }, 219 { "pentium3" "-" TYPE_X86_CPU, "min-level", "2" }, 220 { "n270" "-" TYPE_X86_CPU, "min-level", "5" }, 221 { "Conroe" "-" TYPE_X86_CPU, "min-level", "4" }, 222 { "Penryn" "-" TYPE_X86_CPU, "min-level", "4" }, 223 { "Nehalem" "-" TYPE_X86_CPU, "min-level", "4" }, 224 { "n270" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 225 { "Penryn" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 226 { "Conroe" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 227 { "Nehalem" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 228 { "Westmere" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 229 { "SandyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 230 { "IvyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 231 { "Haswell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 232 { "Haswell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 233 { "Broadwell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 234 { "Broadwell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" }, 235 { TYPE_X86_CPU, "kvm-no-smi-migration", "on" }, 236 }; 237 const size_t pc_compat_2_3_len = G_N_ELEMENTS(pc_compat_2_3); 238 239 GlobalProperty pc_compat_2_2[] = { 240 PC_CPU_MODEL_IDS("2.2.0") 241 { "kvm64" "-" TYPE_X86_CPU, "vme", "off" }, 242 { "kvm32" "-" TYPE_X86_CPU, "vme", "off" }, 243 { "Conroe" "-" TYPE_X86_CPU, "vme", "off" }, 244 { "Penryn" "-" TYPE_X86_CPU, "vme", "off" }, 245 { "Nehalem" "-" TYPE_X86_CPU, "vme", "off" }, 246 { "Westmere" "-" TYPE_X86_CPU, "vme", "off" }, 247 { "SandyBridge" "-" TYPE_X86_CPU, "vme", "off" }, 248 { "Haswell" "-" TYPE_X86_CPU, "vme", "off" }, 249 { "Broadwell" "-" TYPE_X86_CPU, "vme", "off" }, 250 { "Opteron_G1" "-" TYPE_X86_CPU, "vme", "off" }, 251 { "Opteron_G2" "-" TYPE_X86_CPU, "vme", "off" }, 252 { "Opteron_G3" "-" TYPE_X86_CPU, "vme", "off" }, 253 { "Opteron_G4" "-" TYPE_X86_CPU, "vme", "off" }, 254 { "Opteron_G5" "-" TYPE_X86_CPU, "vme", "off" }, 255 { "Haswell" "-" TYPE_X86_CPU, "f16c", "off" }, 256 { "Haswell" "-" TYPE_X86_CPU, "rdrand", "off" }, 257 { "Broadwell" "-" TYPE_X86_CPU, "f16c", "off" }, 258 { "Broadwell" "-" TYPE_X86_CPU, "rdrand", "off" }, 259 }; 260 const size_t pc_compat_2_2_len = G_N_ELEMENTS(pc_compat_2_2); 261 262 GlobalProperty pc_compat_2_1[] = { 263 PC_CPU_MODEL_IDS("2.1.0") 264 { "coreduo" "-" TYPE_X86_CPU, "vmx", "on" }, 265 { "core2duo" "-" TYPE_X86_CPU, "vmx", "on" }, 266 }; 267 const size_t pc_compat_2_1_len = G_N_ELEMENTS(pc_compat_2_1); 268 269 GlobalProperty pc_compat_2_0[] = { 270 PC_CPU_MODEL_IDS("2.0.0") 271 { "virtio-scsi-pci", "any_layout", "off" }, 272 { "PIIX4_PM", "memory-hotplug-support", "off" }, 273 { "apic", "version", "0x11" }, 274 { "nec-usb-xhci", "superspeed-ports-first", "off" }, 275 { "nec-usb-xhci", "force-pcie-endcap", "on" }, 276 { "pci-serial", "prog_if", "0" }, 277 { "pci-serial-2x", "prog_if", "0" }, 278 { "pci-serial-4x", "prog_if", "0" }, 279 { "virtio-net-pci", "guest_announce", "off" }, 280 { "ICH9-LPC", "memory-hotplug-support", "off" }, 281 { "xio3130-downstream", COMPAT_PROP_PCP, "off" }, 282 { "ioh3420", COMPAT_PROP_PCP, "off" }, 283 }; 284 const size_t pc_compat_2_0_len = G_N_ELEMENTS(pc_compat_2_0); 285 286 GlobalProperty pc_compat_1_7[] = { 287 PC_CPU_MODEL_IDS("1.7.0") 288 { TYPE_USB_DEVICE, "msos-desc", "no" }, 289 { "PIIX4_PM", "acpi-pci-hotplug-with-bridge-support", "off" }, 290 { "hpet", HPET_INTCAP, "4" }, 291 }; 292 const size_t pc_compat_1_7_len = G_N_ELEMENTS(pc_compat_1_7); 293 294 GlobalProperty pc_compat_1_6[] = { 295 PC_CPU_MODEL_IDS("1.6.0") 296 { "e1000", "mitigation", "off" }, 297 { "qemu64-" TYPE_X86_CPU, "model", "2" }, 298 { "qemu32-" TYPE_X86_CPU, "model", "3" }, 299 { "i440FX-pcihost", "short_root_bus", "1" }, 300 { "q35-pcihost", "short_root_bus", "1" }, 301 }; 302 const size_t pc_compat_1_6_len = G_N_ELEMENTS(pc_compat_1_6); 303 304 GlobalProperty pc_compat_1_5[] = { 305 PC_CPU_MODEL_IDS("1.5.0") 306 { "Conroe-" TYPE_X86_CPU, "model", "2" }, 307 { "Conroe-" TYPE_X86_CPU, "min-level", "2" }, 308 { "Penryn-" TYPE_X86_CPU, "model", "2" }, 309 { "Penryn-" TYPE_X86_CPU, "min-level", "2" }, 310 { "Nehalem-" TYPE_X86_CPU, "model", "2" }, 311 { "Nehalem-" TYPE_X86_CPU, "min-level", "2" }, 312 { "virtio-net-pci", "any_layout", "off" }, 313 { TYPE_X86_CPU, "pmu", "on" }, 314 { "i440FX-pcihost", "short_root_bus", "0" }, 315 { "q35-pcihost", "short_root_bus", "0" }, 316 }; 317 const size_t pc_compat_1_5_len = G_N_ELEMENTS(pc_compat_1_5); 318 319 GlobalProperty pc_compat_1_4[] = { 320 PC_CPU_MODEL_IDS("1.4.0") 321 { "scsi-hd", "discard_granularity", "0" }, 322 { "scsi-cd", "discard_granularity", "0" }, 323 { "scsi-disk", "discard_granularity", "0" }, 324 { "ide-hd", "discard_granularity", "0" }, 325 { "ide-cd", "discard_granularity", "0" }, 326 { "ide-drive", "discard_granularity", "0" }, 327 { "virtio-blk-pci", "discard_granularity", "0" }, 328 /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string: */ 329 { "virtio-serial-pci", "vectors", "0xFFFFFFFF" }, 330 { "virtio-net-pci", "ctrl_guest_offloads", "off" }, 331 { "e1000", "romfile", "pxe-e1000.rom" }, 332 { "ne2k_pci", "romfile", "pxe-ne2k_pci.rom" }, 333 { "pcnet", "romfile", "pxe-pcnet.rom" }, 334 { "rtl8139", "romfile", "pxe-rtl8139.rom" }, 335 { "virtio-net-pci", "romfile", "pxe-virtio.rom" }, 336 { "486-" TYPE_X86_CPU, "model", "0" }, 337 { "n270" "-" TYPE_X86_CPU, "movbe", "off" }, 338 { "Westmere" "-" TYPE_X86_CPU, "pclmulqdq", "off" }, 339 }; 340 const size_t pc_compat_1_4_len = G_N_ELEMENTS(pc_compat_1_4); 341 342 GSIState *pc_gsi_create(qemu_irq **irqs, bool pci_enabled) 343 { 344 GSIState *s; 345 346 s = g_new0(GSIState, 1); 347 if (kvm_ioapic_in_kernel()) { 348 kvm_pc_setup_irq_routing(pci_enabled); 349 } 350 *irqs = qemu_allocate_irqs(gsi_handler, s, GSI_NUM_PINS); 351 352 return s; 353 } 354 355 static void ioport80_write(void *opaque, hwaddr addr, uint64_t data, 356 unsigned size) 357 { 358 } 359 360 static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size) 361 { 362 return 0xffffffffffffffffULL; 363 } 364 365 /* MSDOS compatibility mode FPU exception support */ 366 static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data, 367 unsigned size) 368 { 369 if (tcg_enabled()) { 370 cpu_set_ignne(); 371 } 372 } 373 374 static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size) 375 { 376 return 0xffffffffffffffffULL; 377 } 378 379 /* PC cmos mappings */ 380 381 #define REG_EQUIPMENT_BYTE 0x14 382 383 int cmos_get_fd_drive_type(FloppyDriveType fd0) 384 { 385 int val; 386 387 switch (fd0) { 388 case FLOPPY_DRIVE_TYPE_144: 389 /* 1.44 Mb 3"5 drive */ 390 val = 4; 391 break; 392 case FLOPPY_DRIVE_TYPE_288: 393 /* 2.88 Mb 3"5 drive */ 394 val = 5; 395 break; 396 case FLOPPY_DRIVE_TYPE_120: 397 /* 1.2 Mb 5"5 drive */ 398 val = 2; 399 break; 400 case FLOPPY_DRIVE_TYPE_NONE: 401 default: 402 val = 0; 403 break; 404 } 405 return val; 406 } 407 408 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs, 409 int16_t cylinders, int8_t heads, int8_t sectors) 410 { 411 rtc_set_memory(s, type_ofs, 47); 412 rtc_set_memory(s, info_ofs, cylinders); 413 rtc_set_memory(s, info_ofs + 1, cylinders >> 8); 414 rtc_set_memory(s, info_ofs + 2, heads); 415 rtc_set_memory(s, info_ofs + 3, 0xff); 416 rtc_set_memory(s, info_ofs + 4, 0xff); 417 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3)); 418 rtc_set_memory(s, info_ofs + 6, cylinders); 419 rtc_set_memory(s, info_ofs + 7, cylinders >> 8); 420 rtc_set_memory(s, info_ofs + 8, sectors); 421 } 422 423 /* convert boot_device letter to something recognizable by the bios */ 424 static int boot_device2nibble(char boot_device) 425 { 426 switch(boot_device) { 427 case 'a': 428 case 'b': 429 return 0x01; /* floppy boot */ 430 case 'c': 431 return 0x02; /* hard drive boot */ 432 case 'd': 433 return 0x03; /* CD-ROM boot */ 434 case 'n': 435 return 0x04; /* Network boot */ 436 } 437 return 0; 438 } 439 440 static void set_boot_dev(ISADevice *s, const char *boot_device, Error **errp) 441 { 442 #define PC_MAX_BOOT_DEVICES 3 443 int nbds, bds[3] = { 0, }; 444 int i; 445 446 nbds = strlen(boot_device); 447 if (nbds > PC_MAX_BOOT_DEVICES) { 448 error_setg(errp, "Too many boot devices for PC"); 449 return; 450 } 451 for (i = 0; i < nbds; i++) { 452 bds[i] = boot_device2nibble(boot_device[i]); 453 if (bds[i] == 0) { 454 error_setg(errp, "Invalid boot device for PC: '%c'", 455 boot_device[i]); 456 return; 457 } 458 } 459 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]); 460 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1)); 461 } 462 463 static void pc_boot_set(void *opaque, const char *boot_device, Error **errp) 464 { 465 set_boot_dev(opaque, boot_device, errp); 466 } 467 468 static void pc_cmos_init_floppy(ISADevice *rtc_state, ISADevice *floppy) 469 { 470 int val, nb, i; 471 FloppyDriveType fd_type[2] = { FLOPPY_DRIVE_TYPE_NONE, 472 FLOPPY_DRIVE_TYPE_NONE }; 473 474 /* floppy type */ 475 if (floppy) { 476 for (i = 0; i < 2; i++) { 477 fd_type[i] = isa_fdc_get_drive_type(floppy, i); 478 } 479 } 480 val = (cmos_get_fd_drive_type(fd_type[0]) << 4) | 481 cmos_get_fd_drive_type(fd_type[1]); 482 rtc_set_memory(rtc_state, 0x10, val); 483 484 val = rtc_get_memory(rtc_state, REG_EQUIPMENT_BYTE); 485 nb = 0; 486 if (fd_type[0] != FLOPPY_DRIVE_TYPE_NONE) { 487 nb++; 488 } 489 if (fd_type[1] != FLOPPY_DRIVE_TYPE_NONE) { 490 nb++; 491 } 492 switch (nb) { 493 case 0: 494 break; 495 case 1: 496 val |= 0x01; /* 1 drive, ready for boot */ 497 break; 498 case 2: 499 val |= 0x41; /* 2 drives, ready for boot */ 500 break; 501 } 502 rtc_set_memory(rtc_state, REG_EQUIPMENT_BYTE, val); 503 } 504 505 typedef struct pc_cmos_init_late_arg { 506 ISADevice *rtc_state; 507 BusState *idebus[2]; 508 } pc_cmos_init_late_arg; 509 510 typedef struct check_fdc_state { 511 ISADevice *floppy; 512 bool multiple; 513 } CheckFdcState; 514 515 static int check_fdc(Object *obj, void *opaque) 516 { 517 CheckFdcState *state = opaque; 518 Object *fdc; 519 uint32_t iobase; 520 Error *local_err = NULL; 521 522 fdc = object_dynamic_cast(obj, TYPE_ISA_FDC); 523 if (!fdc) { 524 return 0; 525 } 526 527 iobase = object_property_get_uint(obj, "iobase", &local_err); 528 if (local_err || iobase != 0x3f0) { 529 error_free(local_err); 530 return 0; 531 } 532 533 if (state->floppy) { 534 state->multiple = true; 535 } else { 536 state->floppy = ISA_DEVICE(obj); 537 } 538 return 0; 539 } 540 541 static const char * const fdc_container_path[] = { 542 "/unattached", "/peripheral", "/peripheral-anon" 543 }; 544 545 /* 546 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers 547 * and ACPI objects. 548 */ 549 ISADevice *pc_find_fdc0(void) 550 { 551 int i; 552 Object *container; 553 CheckFdcState state = { 0 }; 554 555 for (i = 0; i < ARRAY_SIZE(fdc_container_path); i++) { 556 container = container_get(qdev_get_machine(), fdc_container_path[i]); 557 object_child_foreach(container, check_fdc, &state); 558 } 559 560 if (state.multiple) { 561 warn_report("multiple floppy disk controllers with " 562 "iobase=0x3f0 have been found"); 563 error_printf("the one being picked for CMOS setup might not reflect " 564 "your intent"); 565 } 566 567 return state.floppy; 568 } 569 570 static void pc_cmos_init_late(void *opaque) 571 { 572 pc_cmos_init_late_arg *arg = opaque; 573 ISADevice *s = arg->rtc_state; 574 int16_t cylinders; 575 int8_t heads, sectors; 576 int val; 577 int i, trans; 578 579 val = 0; 580 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 0, 581 &cylinders, &heads, §ors) >= 0) { 582 cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors); 583 val |= 0xf0; 584 } 585 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 1, 586 &cylinders, &heads, §ors) >= 0) { 587 cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors); 588 val |= 0x0f; 589 } 590 rtc_set_memory(s, 0x12, val); 591 592 val = 0; 593 for (i = 0; i < 4; i++) { 594 /* NOTE: ide_get_geometry() returns the physical 595 geometry. It is always such that: 1 <= sects <= 63, 1 596 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS 597 geometry can be different if a translation is done. */ 598 if (arg->idebus[i / 2] && 599 ide_get_geometry(arg->idebus[i / 2], i % 2, 600 &cylinders, &heads, §ors) >= 0) { 601 trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1; 602 assert((trans & ~3) == 0); 603 val |= trans << (i * 2); 604 } 605 } 606 rtc_set_memory(s, 0x39, val); 607 608 pc_cmos_init_floppy(s, pc_find_fdc0()); 609 610 qemu_unregister_reset(pc_cmos_init_late, opaque); 611 } 612 613 void pc_cmos_init(PCMachineState *pcms, 614 BusState *idebus0, BusState *idebus1, 615 ISADevice *s) 616 { 617 int val; 618 static pc_cmos_init_late_arg arg; 619 X86MachineState *x86ms = X86_MACHINE(pcms); 620 621 /* various important CMOS locations needed by PC/Bochs bios */ 622 623 /* memory size */ 624 /* base memory (first MiB) */ 625 val = MIN(x86ms->below_4g_mem_size / KiB, 640); 626 rtc_set_memory(s, 0x15, val); 627 rtc_set_memory(s, 0x16, val >> 8); 628 /* extended memory (next 64MiB) */ 629 if (x86ms->below_4g_mem_size > 1 * MiB) { 630 val = (x86ms->below_4g_mem_size - 1 * MiB) / KiB; 631 } else { 632 val = 0; 633 } 634 if (val > 65535) 635 val = 65535; 636 rtc_set_memory(s, 0x17, val); 637 rtc_set_memory(s, 0x18, val >> 8); 638 rtc_set_memory(s, 0x30, val); 639 rtc_set_memory(s, 0x31, val >> 8); 640 /* memory between 16MiB and 4GiB */ 641 if (x86ms->below_4g_mem_size > 16 * MiB) { 642 val = (x86ms->below_4g_mem_size - 16 * MiB) / (64 * KiB); 643 } else { 644 val = 0; 645 } 646 if (val > 65535) 647 val = 65535; 648 rtc_set_memory(s, 0x34, val); 649 rtc_set_memory(s, 0x35, val >> 8); 650 /* memory above 4GiB */ 651 val = x86ms->above_4g_mem_size / 65536; 652 rtc_set_memory(s, 0x5b, val); 653 rtc_set_memory(s, 0x5c, val >> 8); 654 rtc_set_memory(s, 0x5d, val >> 16); 655 656 object_property_add_link(OBJECT(pcms), "rtc_state", 657 TYPE_ISA_DEVICE, 658 (Object **)&x86ms->rtc, 659 object_property_allow_set_link, 660 OBJ_PROP_LINK_STRONG, &error_abort); 661 object_property_set_link(OBJECT(pcms), OBJECT(s), 662 "rtc_state", &error_abort); 663 664 set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal); 665 666 val = 0; 667 val |= 0x02; /* FPU is there */ 668 val |= 0x04; /* PS/2 mouse installed */ 669 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val); 670 671 /* hard drives and FDC */ 672 arg.rtc_state = s; 673 arg.idebus[0] = idebus0; 674 arg.idebus[1] = idebus1; 675 qemu_register_reset(pc_cmos_init_late, &arg); 676 } 677 678 static void handle_a20_line_change(void *opaque, int irq, int level) 679 { 680 X86CPU *cpu = opaque; 681 682 /* XXX: send to all CPUs ? */ 683 /* XXX: add logic to handle multiple A20 line sources */ 684 x86_cpu_set_a20(cpu, level); 685 } 686 687 #define NE2000_NB_MAX 6 688 689 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 690 0x280, 0x380 }; 691 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; 692 693 void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd) 694 { 695 static int nb_ne2k = 0; 696 697 if (nb_ne2k == NE2000_NB_MAX) 698 return; 699 isa_ne2000_init(bus, ne2000_io[nb_ne2k], 700 ne2000_irq[nb_ne2k], nd); 701 nb_ne2k++; 702 } 703 704 void pc_acpi_smi_interrupt(void *opaque, int irq, int level) 705 { 706 X86CPU *cpu = opaque; 707 708 if (level) { 709 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI); 710 } 711 } 712 713 /* 714 * This function is very similar to smp_parse() 715 * in hw/core/machine.c but includes CPU die support. 716 */ 717 void pc_smp_parse(MachineState *ms, QemuOpts *opts) 718 { 719 X86MachineState *x86ms = X86_MACHINE(ms); 720 721 if (opts) { 722 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0); 723 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0); 724 unsigned dies = qemu_opt_get_number(opts, "dies", 1); 725 unsigned cores = qemu_opt_get_number(opts, "cores", 0); 726 unsigned threads = qemu_opt_get_number(opts, "threads", 0); 727 728 /* compute missing values, prefer sockets over cores over threads */ 729 if (cpus == 0 || sockets == 0) { 730 cores = cores > 0 ? cores : 1; 731 threads = threads > 0 ? threads : 1; 732 if (cpus == 0) { 733 sockets = sockets > 0 ? sockets : 1; 734 cpus = cores * threads * dies * sockets; 735 } else { 736 ms->smp.max_cpus = 737 qemu_opt_get_number(opts, "maxcpus", cpus); 738 sockets = ms->smp.max_cpus / (cores * threads * dies); 739 } 740 } else if (cores == 0) { 741 threads = threads > 0 ? threads : 1; 742 cores = cpus / (sockets * dies * threads); 743 cores = cores > 0 ? cores : 1; 744 } else if (threads == 0) { 745 threads = cpus / (cores * dies * sockets); 746 threads = threads > 0 ? threads : 1; 747 } else if (sockets * dies * cores * threads < cpus) { 748 error_report("cpu topology: " 749 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) < " 750 "smp_cpus (%u)", 751 sockets, dies, cores, threads, cpus); 752 exit(1); 753 } 754 755 ms->smp.max_cpus = 756 qemu_opt_get_number(opts, "maxcpus", cpus); 757 758 if (ms->smp.max_cpus < cpus) { 759 error_report("maxcpus must be equal to or greater than smp"); 760 exit(1); 761 } 762 763 if (sockets * dies * cores * threads > ms->smp.max_cpus) { 764 error_report("cpu topology: " 765 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) > " 766 "maxcpus (%u)", 767 sockets, dies, cores, threads, 768 ms->smp.max_cpus); 769 exit(1); 770 } 771 772 if (sockets * dies * cores * threads != ms->smp.max_cpus) { 773 warn_report("Invalid CPU topology deprecated: " 774 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) " 775 "!= maxcpus (%u)", 776 sockets, dies, cores, threads, 777 ms->smp.max_cpus); 778 } 779 780 ms->smp.cpus = cpus; 781 ms->smp.cores = cores; 782 ms->smp.threads = threads; 783 x86ms->smp_dies = dies; 784 } 785 786 if (ms->smp.cpus > 1) { 787 Error *blocker = NULL; 788 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp"); 789 replay_add_blocker(blocker); 790 } 791 } 792 793 void pc_hot_add_cpu(MachineState *ms, const int64_t id, Error **errp) 794 { 795 X86MachineState *x86ms = X86_MACHINE(ms); 796 int64_t apic_id = x86_cpu_apic_id_from_index(x86ms, id); 797 Error *local_err = NULL; 798 799 if (id < 0) { 800 error_setg(errp, "Invalid CPU id: %" PRIi64, id); 801 return; 802 } 803 804 if (apic_id >= ACPI_CPU_HOTPLUG_ID_LIMIT) { 805 error_setg(errp, "Unable to add CPU: %" PRIi64 806 ", resulting APIC ID (%" PRIi64 ") is too large", 807 id, apic_id); 808 return; 809 } 810 811 812 x86_cpu_new(X86_MACHINE(ms), apic_id, &local_err); 813 if (local_err) { 814 error_propagate(errp, local_err); 815 return; 816 } 817 } 818 819 static void rtc_set_cpus_count(ISADevice *rtc, uint16_t cpus_count) 820 { 821 if (cpus_count > 0xff) { 822 /* If the number of CPUs can't be represented in 8 bits, the 823 * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just 824 * to make old BIOSes fail more predictably. 825 */ 826 rtc_set_memory(rtc, 0x5f, 0); 827 } else { 828 rtc_set_memory(rtc, 0x5f, cpus_count - 1); 829 } 830 } 831 832 static 833 void pc_machine_done(Notifier *notifier, void *data) 834 { 835 PCMachineState *pcms = container_of(notifier, 836 PCMachineState, machine_done); 837 X86MachineState *x86ms = X86_MACHINE(pcms); 838 PCIBus *bus = pcms->bus; 839 840 /* set the number of CPUs */ 841 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus); 842 843 if (bus) { 844 int extra_hosts = 0; 845 846 QLIST_FOREACH(bus, &bus->child, sibling) { 847 /* look for expander root buses */ 848 if (pci_bus_is_root(bus)) { 849 extra_hosts++; 850 } 851 } 852 if (extra_hosts && x86ms->fw_cfg) { 853 uint64_t *val = g_malloc(sizeof(*val)); 854 *val = cpu_to_le64(extra_hosts); 855 fw_cfg_add_file(x86ms->fw_cfg, 856 "etc/extra-pci-roots", val, sizeof(*val)); 857 } 858 } 859 860 acpi_setup(); 861 if (x86ms->fw_cfg) { 862 fw_cfg_build_smbios(MACHINE(pcms), x86ms->fw_cfg); 863 fw_cfg_build_feature_control(MACHINE(pcms), x86ms->fw_cfg); 864 /* update FW_CFG_NB_CPUS to account for -device added CPUs */ 865 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 866 } 867 868 if (x86ms->apic_id_limit > 255 && !xen_enabled()) { 869 IntelIOMMUState *iommu = INTEL_IOMMU_DEVICE(x86_iommu_get_default()); 870 871 if (!iommu || !x86_iommu_ir_supported(X86_IOMMU_DEVICE(iommu)) || 872 iommu->intr_eim != ON_OFF_AUTO_ON) { 873 error_report("current -smp configuration requires " 874 "Extended Interrupt Mode enabled. " 875 "You can add an IOMMU using: " 876 "-device intel-iommu,intremap=on,eim=on"); 877 exit(EXIT_FAILURE); 878 } 879 } 880 } 881 882 void pc_guest_info_init(PCMachineState *pcms) 883 { 884 int i; 885 MachineState *ms = MACHINE(pcms); 886 X86MachineState *x86ms = X86_MACHINE(pcms); 887 888 x86ms->apic_xrupt_override = kvm_allows_irq0_override(); 889 pcms->numa_nodes = ms->numa_state->num_nodes; 890 pcms->node_mem = g_malloc0(pcms->numa_nodes * 891 sizeof *pcms->node_mem); 892 for (i = 0; i < ms->numa_state->num_nodes; i++) { 893 pcms->node_mem[i] = ms->numa_state->nodes[i].node_mem; 894 } 895 896 pcms->machine_done.notify = pc_machine_done; 897 qemu_add_machine_init_done_notifier(&pcms->machine_done); 898 } 899 900 /* setup pci memory address space mapping into system address space */ 901 void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory, 902 MemoryRegion *pci_address_space) 903 { 904 /* Set to lower priority than RAM */ 905 memory_region_add_subregion_overlap(system_memory, 0x0, 906 pci_address_space, -1); 907 } 908 909 void xen_load_linux(PCMachineState *pcms) 910 { 911 int i; 912 FWCfgState *fw_cfg; 913 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 914 X86MachineState *x86ms = X86_MACHINE(pcms); 915 916 assert(MACHINE(pcms)->kernel_filename != NULL); 917 918 fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE); 919 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 920 rom_set_fw(fw_cfg); 921 922 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size, 923 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled); 924 for (i = 0; i < nb_option_roms; i++) { 925 assert(!strcmp(option_rom[i].name, "linuxboot.bin") || 926 !strcmp(option_rom[i].name, "linuxboot_dma.bin") || 927 !strcmp(option_rom[i].name, "pvh.bin") || 928 !strcmp(option_rom[i].name, "multiboot.bin")); 929 rom_add_option(option_rom[i].name, option_rom[i].bootindex); 930 } 931 x86ms->fw_cfg = fw_cfg; 932 } 933 934 void pc_memory_init(PCMachineState *pcms, 935 MemoryRegion *system_memory, 936 MemoryRegion *rom_memory, 937 MemoryRegion **ram_memory) 938 { 939 int linux_boot, i; 940 MemoryRegion *ram, *option_rom_mr; 941 MemoryRegion *ram_below_4g, *ram_above_4g; 942 FWCfgState *fw_cfg; 943 MachineState *machine = MACHINE(pcms); 944 MachineClass *mc = MACHINE_GET_CLASS(machine); 945 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 946 X86MachineState *x86ms = X86_MACHINE(pcms); 947 948 assert(machine->ram_size == x86ms->below_4g_mem_size + 949 x86ms->above_4g_mem_size); 950 951 linux_boot = (machine->kernel_filename != NULL); 952 953 /* Allocate RAM. We allocate it as a single memory region and use 954 * aliases to address portions of it, mostly for backwards compatibility 955 * with older qemus that used qemu_ram_alloc(). 956 */ 957 ram = g_malloc(sizeof(*ram)); 958 memory_region_allocate_system_memory(ram, NULL, "pc.ram", 959 machine->ram_size); 960 *ram_memory = ram; 961 ram_below_4g = g_malloc(sizeof(*ram_below_4g)); 962 memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram, 963 0, x86ms->below_4g_mem_size); 964 memory_region_add_subregion(system_memory, 0, ram_below_4g); 965 e820_add_entry(0, x86ms->below_4g_mem_size, E820_RAM); 966 if (x86ms->above_4g_mem_size > 0) { 967 ram_above_4g = g_malloc(sizeof(*ram_above_4g)); 968 memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram, 969 x86ms->below_4g_mem_size, 970 x86ms->above_4g_mem_size); 971 memory_region_add_subregion(system_memory, 0x100000000ULL, 972 ram_above_4g); 973 e820_add_entry(0x100000000ULL, x86ms->above_4g_mem_size, E820_RAM); 974 } 975 976 if (!pcmc->has_reserved_memory && 977 (machine->ram_slots || 978 (machine->maxram_size > machine->ram_size))) { 979 980 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s", 981 mc->name); 982 exit(EXIT_FAILURE); 983 } 984 985 /* always allocate the device memory information */ 986 machine->device_memory = g_malloc0(sizeof(*machine->device_memory)); 987 988 /* initialize device memory address space */ 989 if (pcmc->has_reserved_memory && 990 (machine->ram_size < machine->maxram_size)) { 991 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size; 992 993 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) { 994 error_report("unsupported amount of memory slots: %"PRIu64, 995 machine->ram_slots); 996 exit(EXIT_FAILURE); 997 } 998 999 if (QEMU_ALIGN_UP(machine->maxram_size, 1000 TARGET_PAGE_SIZE) != machine->maxram_size) { 1001 error_report("maximum memory size must by aligned to multiple of " 1002 "%d bytes", TARGET_PAGE_SIZE); 1003 exit(EXIT_FAILURE); 1004 } 1005 1006 machine->device_memory->base = 1007 ROUND_UP(0x100000000ULL + x86ms->above_4g_mem_size, 1 * GiB); 1008 1009 if (pcmc->enforce_aligned_dimm) { 1010 /* size device region assuming 1G page max alignment per slot */ 1011 device_mem_size += (1 * GiB) * machine->ram_slots; 1012 } 1013 1014 if ((machine->device_memory->base + device_mem_size) < 1015 device_mem_size) { 1016 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT, 1017 machine->maxram_size); 1018 exit(EXIT_FAILURE); 1019 } 1020 1021 memory_region_init(&machine->device_memory->mr, OBJECT(pcms), 1022 "device-memory", device_mem_size); 1023 memory_region_add_subregion(system_memory, machine->device_memory->base, 1024 &machine->device_memory->mr); 1025 } 1026 1027 /* Initialize PC system firmware */ 1028 pc_system_firmware_init(pcms, rom_memory); 1029 1030 option_rom_mr = g_malloc(sizeof(*option_rom_mr)); 1031 memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE, 1032 &error_fatal); 1033 if (pcmc->pci_enabled) { 1034 memory_region_set_readonly(option_rom_mr, true); 1035 } 1036 memory_region_add_subregion_overlap(rom_memory, 1037 PC_ROM_MIN_VGA, 1038 option_rom_mr, 1039 1); 1040 1041 fw_cfg = fw_cfg_arch_create(machine, 1042 x86ms->boot_cpus, x86ms->apic_id_limit); 1043 1044 rom_set_fw(fw_cfg); 1045 1046 if (pcmc->has_reserved_memory && machine->device_memory->base) { 1047 uint64_t *val = g_malloc(sizeof(*val)); 1048 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 1049 uint64_t res_mem_end = machine->device_memory->base; 1050 1051 if (!pcmc->broken_reserved_end) { 1052 res_mem_end += memory_region_size(&machine->device_memory->mr); 1053 } 1054 *val = cpu_to_le64(ROUND_UP(res_mem_end, 1 * GiB)); 1055 fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val)); 1056 } 1057 1058 if (linux_boot) { 1059 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size, 1060 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled); 1061 } 1062 1063 for (i = 0; i < nb_option_roms; i++) { 1064 rom_add_option(option_rom[i].name, option_rom[i].bootindex); 1065 } 1066 x86ms->fw_cfg = fw_cfg; 1067 1068 /* Init default IOAPIC address space */ 1069 x86ms->ioapic_as = &address_space_memory; 1070 1071 /* Init ACPI memory hotplug IO base address */ 1072 pcms->memhp_io_base = ACPI_MEMORY_HOTPLUG_BASE; 1073 } 1074 1075 /* 1076 * The 64bit pci hole starts after "above 4G RAM" and 1077 * potentially the space reserved for memory hotplug. 1078 */ 1079 uint64_t pc_pci_hole64_start(void) 1080 { 1081 PCMachineState *pcms = PC_MACHINE(qdev_get_machine()); 1082 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 1083 MachineState *ms = MACHINE(pcms); 1084 X86MachineState *x86ms = X86_MACHINE(pcms); 1085 uint64_t hole64_start = 0; 1086 1087 if (pcmc->has_reserved_memory && ms->device_memory->base) { 1088 hole64_start = ms->device_memory->base; 1089 if (!pcmc->broken_reserved_end) { 1090 hole64_start += memory_region_size(&ms->device_memory->mr); 1091 } 1092 } else { 1093 hole64_start = 0x100000000ULL + x86ms->above_4g_mem_size; 1094 } 1095 1096 return ROUND_UP(hole64_start, 1 * GiB); 1097 } 1098 1099 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus) 1100 { 1101 DeviceState *dev = NULL; 1102 1103 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA); 1104 if (pci_bus) { 1105 PCIDevice *pcidev = pci_vga_init(pci_bus); 1106 dev = pcidev ? &pcidev->qdev : NULL; 1107 } else if (isa_bus) { 1108 ISADevice *isadev = isa_vga_init(isa_bus); 1109 dev = isadev ? DEVICE(isadev) : NULL; 1110 } 1111 rom_reset_order_override(); 1112 return dev; 1113 } 1114 1115 static const MemoryRegionOps ioport80_io_ops = { 1116 .write = ioport80_write, 1117 .read = ioport80_read, 1118 .endianness = DEVICE_NATIVE_ENDIAN, 1119 .impl = { 1120 .min_access_size = 1, 1121 .max_access_size = 1, 1122 }, 1123 }; 1124 1125 static const MemoryRegionOps ioportF0_io_ops = { 1126 .write = ioportF0_write, 1127 .read = ioportF0_read, 1128 .endianness = DEVICE_NATIVE_ENDIAN, 1129 .impl = { 1130 .min_access_size = 1, 1131 .max_access_size = 1, 1132 }, 1133 }; 1134 1135 static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport) 1136 { 1137 int i; 1138 DriveInfo *fd[MAX_FD]; 1139 qemu_irq *a20_line; 1140 ISADevice *i8042, *port92, *vmmouse; 1141 1142 serial_hds_isa_init(isa_bus, 0, MAX_ISA_SERIAL_PORTS); 1143 parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS); 1144 1145 for (i = 0; i < MAX_FD; i++) { 1146 fd[i] = drive_get(IF_FLOPPY, 0, i); 1147 create_fdctrl |= !!fd[i]; 1148 } 1149 if (create_fdctrl) { 1150 fdctrl_init_isa(isa_bus, fd); 1151 } 1152 1153 i8042 = isa_create_simple(isa_bus, "i8042"); 1154 if (!no_vmport) { 1155 vmport_init(isa_bus); 1156 vmmouse = isa_try_create(isa_bus, "vmmouse"); 1157 } else { 1158 vmmouse = NULL; 1159 } 1160 if (vmmouse) { 1161 object_property_set_link(OBJECT(vmmouse), OBJECT(i8042), 1162 "i8042", &error_abort); 1163 qdev_init_nofail(DEVICE(vmmouse)); 1164 } 1165 port92 = isa_create_simple(isa_bus, TYPE_PORT92); 1166 1167 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2); 1168 i8042_setup_a20_line(i8042, a20_line[0]); 1169 qdev_connect_gpio_out_named(DEVICE(port92), 1170 PORT92_A20_LINE, 0, a20_line[1]); 1171 g_free(a20_line); 1172 } 1173 1174 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi, 1175 ISADevice **rtc_state, 1176 bool create_fdctrl, 1177 bool no_vmport, 1178 bool has_pit, 1179 uint32_t hpet_irqs) 1180 { 1181 int i; 1182 DeviceState *hpet = NULL; 1183 int pit_isa_irq = 0; 1184 qemu_irq pit_alt_irq = NULL; 1185 qemu_irq rtc_irq = NULL; 1186 ISADevice *pit = NULL; 1187 MemoryRegion *ioport80_io = g_new(MemoryRegion, 1); 1188 MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1); 1189 1190 memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1); 1191 memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io); 1192 1193 memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, "ioportF0", 1); 1194 memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io); 1195 1196 /* 1197 * Check if an HPET shall be created. 1198 * 1199 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT 1200 * when the HPET wants to take over. Thus we have to disable the latter. 1201 */ 1202 if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) { 1203 hpet = qdev_try_create(NULL, TYPE_HPET); 1204 if (hpet) { 1205 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7 1206 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23, 1207 * IRQ8 and IRQ2. 1208 */ 1209 uint8_t compat = object_property_get_uint(OBJECT(hpet), 1210 HPET_INTCAP, NULL); 1211 if (!compat) { 1212 qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs); 1213 } 1214 qdev_init_nofail(hpet); 1215 sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE); 1216 1217 for (i = 0; i < GSI_NUM_PINS; i++) { 1218 sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); 1219 } 1220 pit_isa_irq = -1; 1221 pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); 1222 rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); 1223 } 1224 } 1225 *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq); 1226 1227 qemu_register_boot_set(pc_boot_set, *rtc_state); 1228 1229 if (!xen_enabled() && has_pit) { 1230 if (kvm_pit_in_kernel()) { 1231 pit = kvm_pit_init(isa_bus, 0x40); 1232 } else { 1233 pit = i8254_pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq); 1234 } 1235 if (hpet) { 1236 /* connect PIT to output control line of the HPET */ 1237 qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0)); 1238 } 1239 pcspk_init(isa_bus, pit); 1240 } 1241 1242 i8257_dma_init(isa_bus, 0); 1243 1244 /* Super I/O */ 1245 pc_superio_init(isa_bus, create_fdctrl, no_vmport); 1246 } 1247 1248 void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus) 1249 { 1250 int i; 1251 1252 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC); 1253 for (i = 0; i < nb_nics; i++) { 1254 NICInfo *nd = &nd_table[i]; 1255 const char *model = nd->model ? nd->model : pcmc->default_nic_model; 1256 1257 if (g_str_equal(model, "ne2k_isa")) { 1258 pc_init_ne2k_isa(isa_bus, nd); 1259 } else { 1260 pci_nic_init_nofail(nd, pci_bus, model, NULL); 1261 } 1262 } 1263 rom_reset_order_override(); 1264 } 1265 1266 void pc_i8259_create(ISABus *isa_bus, qemu_irq *i8259_irqs) 1267 { 1268 qemu_irq *i8259; 1269 1270 if (kvm_pic_in_kernel()) { 1271 i8259 = kvm_i8259_init(isa_bus); 1272 } else if (xen_enabled()) { 1273 i8259 = xen_interrupt_controller_init(); 1274 } else { 1275 i8259 = i8259_init(isa_bus, x86_allocate_cpu_irq()); 1276 } 1277 1278 for (size_t i = 0; i < ISA_NUM_IRQS; i++) { 1279 i8259_irqs[i] = i8259[i]; 1280 } 1281 1282 g_free(i8259); 1283 } 1284 1285 static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev, 1286 Error **errp) 1287 { 1288 const PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1289 const PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); 1290 const MachineState *ms = MACHINE(hotplug_dev); 1291 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 1292 const uint64_t legacy_align = TARGET_PAGE_SIZE; 1293 Error *local_err = NULL; 1294 1295 /* 1296 * When -no-acpi is used with Q35 machine type, no ACPI is built, 1297 * but pcms->acpi_dev is still created. Check !acpi_enabled in 1298 * addition to cover this case. 1299 */ 1300 if (!pcms->acpi_dev || !acpi_enabled) { 1301 error_setg(errp, 1302 "memory hotplug is not enabled: missing acpi device or acpi disabled"); 1303 return; 1304 } 1305 1306 if (is_nvdimm && !ms->nvdimms_state->is_enabled) { 1307 error_setg(errp, "nvdimm is not enabled: missing 'nvdimm' in '-M'"); 1308 return; 1309 } 1310 1311 hotplug_handler_pre_plug(pcms->acpi_dev, dev, &local_err); 1312 if (local_err) { 1313 error_propagate(errp, local_err); 1314 return; 1315 } 1316 1317 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), 1318 pcmc->enforce_aligned_dimm ? NULL : &legacy_align, errp); 1319 } 1320 1321 static void pc_memory_plug(HotplugHandler *hotplug_dev, 1322 DeviceState *dev, Error **errp) 1323 { 1324 Error *local_err = NULL; 1325 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1326 MachineState *ms = MACHINE(hotplug_dev); 1327 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM); 1328 1329 pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err); 1330 if (local_err) { 1331 goto out; 1332 } 1333 1334 if (is_nvdimm) { 1335 nvdimm_plug(ms->nvdimms_state); 1336 } 1337 1338 hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort); 1339 out: 1340 error_propagate(errp, local_err); 1341 } 1342 1343 static void pc_memory_unplug_request(HotplugHandler *hotplug_dev, 1344 DeviceState *dev, Error **errp) 1345 { 1346 Error *local_err = NULL; 1347 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1348 1349 /* 1350 * When -no-acpi is used with Q35 machine type, no ACPI is built, 1351 * but pcms->acpi_dev is still created. Check !acpi_enabled in 1352 * addition to cover this case. 1353 */ 1354 if (!pcms->acpi_dev || !acpi_enabled) { 1355 error_setg(&local_err, 1356 "memory hotplug is not enabled: missing acpi device or acpi disabled"); 1357 goto out; 1358 } 1359 1360 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) { 1361 error_setg(&local_err, 1362 "nvdimm device hot unplug is not supported yet."); 1363 goto out; 1364 } 1365 1366 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, 1367 &local_err); 1368 out: 1369 error_propagate(errp, local_err); 1370 } 1371 1372 static void pc_memory_unplug(HotplugHandler *hotplug_dev, 1373 DeviceState *dev, Error **errp) 1374 { 1375 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1376 Error *local_err = NULL; 1377 1378 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); 1379 if (local_err) { 1380 goto out; 1381 } 1382 1383 pc_dimm_unplug(PC_DIMM(dev), MACHINE(pcms)); 1384 object_property_set_bool(OBJECT(dev), false, "realized", NULL); 1385 out: 1386 error_propagate(errp, local_err); 1387 } 1388 1389 static int pc_apic_cmp(const void *a, const void *b) 1390 { 1391 CPUArchId *apic_a = (CPUArchId *)a; 1392 CPUArchId *apic_b = (CPUArchId *)b; 1393 1394 return apic_a->arch_id - apic_b->arch_id; 1395 } 1396 1397 /* returns pointer to CPUArchId descriptor that matches CPU's apic_id 1398 * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no 1399 * entry corresponding to CPU's apic_id returns NULL. 1400 */ 1401 static CPUArchId *pc_find_cpu_slot(MachineState *ms, uint32_t id, int *idx) 1402 { 1403 CPUArchId apic_id, *found_cpu; 1404 1405 apic_id.arch_id = id; 1406 found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus, 1407 ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus), 1408 pc_apic_cmp); 1409 if (found_cpu && idx) { 1410 *idx = found_cpu - ms->possible_cpus->cpus; 1411 } 1412 return found_cpu; 1413 } 1414 1415 static void pc_cpu_plug(HotplugHandler *hotplug_dev, 1416 DeviceState *dev, Error **errp) 1417 { 1418 CPUArchId *found_cpu; 1419 Error *local_err = NULL; 1420 X86CPU *cpu = X86_CPU(dev); 1421 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1422 X86MachineState *x86ms = X86_MACHINE(pcms); 1423 1424 if (pcms->acpi_dev) { 1425 hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); 1426 if (local_err) { 1427 goto out; 1428 } 1429 } 1430 1431 /* increment the number of CPUs */ 1432 x86ms->boot_cpus++; 1433 if (x86ms->rtc) { 1434 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus); 1435 } 1436 if (x86ms->fw_cfg) { 1437 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 1438 } 1439 1440 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL); 1441 found_cpu->cpu = OBJECT(dev); 1442 out: 1443 error_propagate(errp, local_err); 1444 } 1445 static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev, 1446 DeviceState *dev, Error **errp) 1447 { 1448 int idx = -1; 1449 Error *local_err = NULL; 1450 X86CPU *cpu = X86_CPU(dev); 1451 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1452 1453 if (!pcms->acpi_dev) { 1454 error_setg(&local_err, "CPU hot unplug not supported without ACPI"); 1455 goto out; 1456 } 1457 1458 pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx); 1459 assert(idx != -1); 1460 if (idx == 0) { 1461 error_setg(&local_err, "Boot CPU is unpluggable"); 1462 goto out; 1463 } 1464 1465 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, 1466 &local_err); 1467 if (local_err) { 1468 goto out; 1469 } 1470 1471 out: 1472 error_propagate(errp, local_err); 1473 1474 } 1475 1476 static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev, 1477 DeviceState *dev, Error **errp) 1478 { 1479 CPUArchId *found_cpu; 1480 Error *local_err = NULL; 1481 X86CPU *cpu = X86_CPU(dev); 1482 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1483 X86MachineState *x86ms = X86_MACHINE(pcms); 1484 1485 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); 1486 if (local_err) { 1487 goto out; 1488 } 1489 1490 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL); 1491 found_cpu->cpu = NULL; 1492 object_property_set_bool(OBJECT(dev), false, "realized", NULL); 1493 1494 /* decrement the number of CPUs */ 1495 x86ms->boot_cpus--; 1496 /* Update the number of CPUs in CMOS */ 1497 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus); 1498 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus); 1499 out: 1500 error_propagate(errp, local_err); 1501 } 1502 1503 static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev, 1504 DeviceState *dev, Error **errp) 1505 { 1506 int idx; 1507 CPUState *cs; 1508 CPUArchId *cpu_slot; 1509 X86CPUTopoInfo topo; 1510 X86CPU *cpu = X86_CPU(dev); 1511 CPUX86State *env = &cpu->env; 1512 MachineState *ms = MACHINE(hotplug_dev); 1513 PCMachineState *pcms = PC_MACHINE(hotplug_dev); 1514 X86MachineState *x86ms = X86_MACHINE(pcms); 1515 unsigned int smp_cores = ms->smp.cores; 1516 unsigned int smp_threads = ms->smp.threads; 1517 1518 if(!object_dynamic_cast(OBJECT(cpu), ms->cpu_type)) { 1519 error_setg(errp, "Invalid CPU type, expected cpu type: '%s'", 1520 ms->cpu_type); 1521 return; 1522 } 1523 1524 env->nr_dies = x86ms->smp_dies; 1525 1526 /* 1527 * If APIC ID is not set, 1528 * set it based on socket/die/core/thread properties. 1529 */ 1530 if (cpu->apic_id == UNASSIGNED_APIC_ID) { 1531 int max_socket = (ms->smp.max_cpus - 1) / 1532 smp_threads / smp_cores / x86ms->smp_dies; 1533 1534 /* 1535 * die-id was optional in QEMU 4.0 and older, so keep it optional 1536 * if there's only one die per socket. 1537 */ 1538 if (cpu->die_id < 0 && x86ms->smp_dies == 1) { 1539 cpu->die_id = 0; 1540 } 1541 1542 if (cpu->socket_id < 0) { 1543 error_setg(errp, "CPU socket-id is not set"); 1544 return; 1545 } else if (cpu->socket_id > max_socket) { 1546 error_setg(errp, "Invalid CPU socket-id: %u must be in range 0:%u", 1547 cpu->socket_id, max_socket); 1548 return; 1549 } 1550 if (cpu->die_id < 0) { 1551 error_setg(errp, "CPU die-id is not set"); 1552 return; 1553 } else if (cpu->die_id > x86ms->smp_dies - 1) { 1554 error_setg(errp, "Invalid CPU die-id: %u must be in range 0:%u", 1555 cpu->die_id, x86ms->smp_dies - 1); 1556 return; 1557 } 1558 if (cpu->core_id < 0) { 1559 error_setg(errp, "CPU core-id is not set"); 1560 return; 1561 } else if (cpu->core_id > (smp_cores - 1)) { 1562 error_setg(errp, "Invalid CPU core-id: %u must be in range 0:%u", 1563 cpu->core_id, smp_cores - 1); 1564 return; 1565 } 1566 if (cpu->thread_id < 0) { 1567 error_setg(errp, "CPU thread-id is not set"); 1568 return; 1569 } else if (cpu->thread_id > (smp_threads - 1)) { 1570 error_setg(errp, "Invalid CPU thread-id: %u must be in range 0:%u", 1571 cpu->thread_id, smp_threads - 1); 1572 return; 1573 } 1574 1575 topo.pkg_id = cpu->socket_id; 1576 topo.die_id = cpu->die_id; 1577 topo.core_id = cpu->core_id; 1578 topo.smt_id = cpu->thread_id; 1579 cpu->apic_id = apicid_from_topo_ids(x86ms->smp_dies, smp_cores, 1580 smp_threads, &topo); 1581 } 1582 1583 cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx); 1584 if (!cpu_slot) { 1585 MachineState *ms = MACHINE(pcms); 1586 1587 x86_topo_ids_from_apicid(cpu->apic_id, x86ms->smp_dies, 1588 smp_cores, smp_threads, &topo); 1589 error_setg(errp, 1590 "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with" 1591 " APIC ID %" PRIu32 ", valid index range 0:%d", 1592 topo.pkg_id, topo.die_id, topo.core_id, topo.smt_id, 1593 cpu->apic_id, ms->possible_cpus->len - 1); 1594 return; 1595 } 1596 1597 if (cpu_slot->cpu) { 1598 error_setg(errp, "CPU[%d] with APIC ID %" PRIu32 " exists", 1599 idx, cpu->apic_id); 1600 return; 1601 } 1602 1603 /* if 'address' properties socket-id/core-id/thread-id are not set, set them 1604 * so that machine_query_hotpluggable_cpus would show correct values 1605 */ 1606 /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn() 1607 * once -smp refactoring is complete and there will be CPU private 1608 * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */ 1609 x86_topo_ids_from_apicid(cpu->apic_id, x86ms->smp_dies, 1610 smp_cores, smp_threads, &topo); 1611 if (cpu->socket_id != -1 && cpu->socket_id != topo.pkg_id) { 1612 error_setg(errp, "property socket-id: %u doesn't match set apic-id:" 1613 " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, topo.pkg_id); 1614 return; 1615 } 1616 cpu->socket_id = topo.pkg_id; 1617 1618 if (cpu->die_id != -1 && cpu->die_id != topo.die_id) { 1619 error_setg(errp, "property die-id: %u doesn't match set apic-id:" 1620 " 0x%x (die-id: %u)", cpu->die_id, cpu->apic_id, topo.die_id); 1621 return; 1622 } 1623 cpu->die_id = topo.die_id; 1624 1625 if (cpu->core_id != -1 && cpu->core_id != topo.core_id) { 1626 error_setg(errp, "property core-id: %u doesn't match set apic-id:" 1627 " 0x%x (core-id: %u)", cpu->core_id, cpu->apic_id, topo.core_id); 1628 return; 1629 } 1630 cpu->core_id = topo.core_id; 1631 1632 if (cpu->thread_id != -1 && cpu->thread_id != topo.smt_id) { 1633 error_setg(errp, "property thread-id: %u doesn't match set apic-id:" 1634 " 0x%x (thread-id: %u)", cpu->thread_id, cpu->apic_id, topo.smt_id); 1635 return; 1636 } 1637 cpu->thread_id = topo.smt_id; 1638 1639 if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) && 1640 !kvm_hv_vpindex_settable()) { 1641 error_setg(errp, "kernel doesn't allow setting HyperV VP_INDEX"); 1642 return; 1643 } 1644 1645 cs = CPU(cpu); 1646 cs->cpu_index = idx; 1647 1648 numa_cpu_pre_plug(cpu_slot, dev, errp); 1649 } 1650 1651 static void pc_virtio_pmem_pci_pre_plug(HotplugHandler *hotplug_dev, 1652 DeviceState *dev, Error **errp) 1653 { 1654 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 1655 Error *local_err = NULL; 1656 1657 if (!hotplug_dev2) { 1658 /* 1659 * Without a bus hotplug handler, we cannot control the plug/unplug 1660 * order. This should never be the case on x86, however better add 1661 * a safety net. 1662 */ 1663 error_setg(errp, "virtio-pmem-pci not supported on this bus."); 1664 return; 1665 } 1666 /* 1667 * First, see if we can plug this memory device at all. If that 1668 * succeeds, branch of to the actual hotplug handler. 1669 */ 1670 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL, 1671 &local_err); 1672 if (!local_err) { 1673 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err); 1674 } 1675 error_propagate(errp, local_err); 1676 } 1677 1678 static void pc_virtio_pmem_pci_plug(HotplugHandler *hotplug_dev, 1679 DeviceState *dev, Error **errp) 1680 { 1681 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev); 1682 Error *local_err = NULL; 1683 1684 /* 1685 * Plug the memory device first and then branch off to the actual 1686 * hotplug handler. If that one fails, we can easily undo the memory 1687 * device bits. 1688 */ 1689 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 1690 hotplug_handler_plug(hotplug_dev2, dev, &local_err); 1691 if (local_err) { 1692 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev)); 1693 } 1694 error_propagate(errp, local_err); 1695 } 1696 1697 static void pc_virtio_pmem_pci_unplug_request(HotplugHandler *hotplug_dev, 1698 DeviceState *dev, Error **errp) 1699 { 1700 /* We don't support virtio pmem hot unplug */ 1701 error_setg(errp, "virtio pmem device unplug not supported."); 1702 } 1703 1704 static void pc_virtio_pmem_pci_unplug(HotplugHandler *hotplug_dev, 1705 DeviceState *dev, Error **errp) 1706 { 1707 /* We don't support virtio pmem hot unplug */ 1708 } 1709 1710 static void pc_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev, 1711 DeviceState *dev, Error **errp) 1712 { 1713 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 1714 pc_memory_pre_plug(hotplug_dev, dev, errp); 1715 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 1716 pc_cpu_pre_plug(hotplug_dev, dev, errp); 1717 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) { 1718 pc_virtio_pmem_pci_pre_plug(hotplug_dev, dev, errp); 1719 } 1720 } 1721 1722 static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev, 1723 DeviceState *dev, Error **errp) 1724 { 1725 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 1726 pc_memory_plug(hotplug_dev, dev, errp); 1727 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 1728 pc_cpu_plug(hotplug_dev, dev, errp); 1729 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) { 1730 pc_virtio_pmem_pci_plug(hotplug_dev, dev, errp); 1731 } 1732 } 1733 1734 static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, 1735 DeviceState *dev, Error **errp) 1736 { 1737 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 1738 pc_memory_unplug_request(hotplug_dev, dev, errp); 1739 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 1740 pc_cpu_unplug_request_cb(hotplug_dev, dev, errp); 1741 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) { 1742 pc_virtio_pmem_pci_unplug_request(hotplug_dev, dev, errp); 1743 } else { 1744 error_setg(errp, "acpi: device unplug request for not supported device" 1745 " type: %s", object_get_typename(OBJECT(dev))); 1746 } 1747 } 1748 1749 static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev, 1750 DeviceState *dev, Error **errp) 1751 { 1752 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { 1753 pc_memory_unplug(hotplug_dev, dev, errp); 1754 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { 1755 pc_cpu_unplug_cb(hotplug_dev, dev, errp); 1756 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) { 1757 pc_virtio_pmem_pci_unplug(hotplug_dev, dev, errp); 1758 } else { 1759 error_setg(errp, "acpi: device unplug for not supported device" 1760 " type: %s", object_get_typename(OBJECT(dev))); 1761 } 1762 } 1763 1764 static HotplugHandler *pc_get_hotplug_handler(MachineState *machine, 1765 DeviceState *dev) 1766 { 1767 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || 1768 object_dynamic_cast(OBJECT(dev), TYPE_CPU) || 1769 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) { 1770 return HOTPLUG_HANDLER(machine); 1771 } 1772 1773 return NULL; 1774 } 1775 1776 static void 1777 pc_machine_get_device_memory_region_size(Object *obj, Visitor *v, 1778 const char *name, void *opaque, 1779 Error **errp) 1780 { 1781 MachineState *ms = MACHINE(obj); 1782 int64_t value = 0; 1783 1784 if (ms->device_memory) { 1785 value = memory_region_size(&ms->device_memory->mr); 1786 } 1787 1788 visit_type_int(v, name, &value, errp); 1789 } 1790 1791 static void pc_machine_get_vmport(Object *obj, Visitor *v, const char *name, 1792 void *opaque, Error **errp) 1793 { 1794 PCMachineState *pcms = PC_MACHINE(obj); 1795 OnOffAuto vmport = pcms->vmport; 1796 1797 visit_type_OnOffAuto(v, name, &vmport, errp); 1798 } 1799 1800 static void pc_machine_set_vmport(Object *obj, Visitor *v, const char *name, 1801 void *opaque, Error **errp) 1802 { 1803 PCMachineState *pcms = PC_MACHINE(obj); 1804 1805 visit_type_OnOffAuto(v, name, &pcms->vmport, errp); 1806 } 1807 1808 static bool pc_machine_get_smbus(Object *obj, Error **errp) 1809 { 1810 PCMachineState *pcms = PC_MACHINE(obj); 1811 1812 return pcms->smbus_enabled; 1813 } 1814 1815 static void pc_machine_set_smbus(Object *obj, bool value, Error **errp) 1816 { 1817 PCMachineState *pcms = PC_MACHINE(obj); 1818 1819 pcms->smbus_enabled = value; 1820 } 1821 1822 static bool pc_machine_get_sata(Object *obj, Error **errp) 1823 { 1824 PCMachineState *pcms = PC_MACHINE(obj); 1825 1826 return pcms->sata_enabled; 1827 } 1828 1829 static void pc_machine_set_sata(Object *obj, bool value, Error **errp) 1830 { 1831 PCMachineState *pcms = PC_MACHINE(obj); 1832 1833 pcms->sata_enabled = value; 1834 } 1835 1836 static bool pc_machine_get_pit(Object *obj, Error **errp) 1837 { 1838 PCMachineState *pcms = PC_MACHINE(obj); 1839 1840 return pcms->pit_enabled; 1841 } 1842 1843 static void pc_machine_set_pit(Object *obj, bool value, Error **errp) 1844 { 1845 PCMachineState *pcms = PC_MACHINE(obj); 1846 1847 pcms->pit_enabled = value; 1848 } 1849 1850 static void pc_machine_initfn(Object *obj) 1851 { 1852 PCMachineState *pcms = PC_MACHINE(obj); 1853 1854 #ifdef CONFIG_VMPORT 1855 pcms->vmport = ON_OFF_AUTO_AUTO; 1856 #else 1857 pcms->vmport = ON_OFF_AUTO_OFF; 1858 #endif /* CONFIG_VMPORT */ 1859 /* acpi build is enabled by default if machine supports it */ 1860 pcms->acpi_build_enabled = PC_MACHINE_GET_CLASS(pcms)->has_acpi_build; 1861 pcms->smbus_enabled = true; 1862 pcms->sata_enabled = true; 1863 pcms->pit_enabled = true; 1864 1865 pc_system_flash_create(pcms); 1866 } 1867 1868 static void pc_machine_reset(MachineState *machine) 1869 { 1870 CPUState *cs; 1871 X86CPU *cpu; 1872 1873 qemu_devices_reset(); 1874 1875 /* Reset APIC after devices have been reset to cancel 1876 * any changes that qemu_devices_reset() might have done. 1877 */ 1878 CPU_FOREACH(cs) { 1879 cpu = X86_CPU(cs); 1880 1881 if (cpu->apic_state) { 1882 device_legacy_reset(cpu->apic_state); 1883 } 1884 } 1885 } 1886 1887 static void pc_machine_wakeup(MachineState *machine) 1888 { 1889 cpu_synchronize_all_states(); 1890 pc_machine_reset(machine); 1891 cpu_synchronize_all_post_reset(); 1892 } 1893 1894 static bool pc_hotplug_allowed(MachineState *ms, DeviceState *dev, Error **errp) 1895 { 1896 X86IOMMUState *iommu = x86_iommu_get_default(); 1897 IntelIOMMUState *intel_iommu; 1898 1899 if (iommu && 1900 object_dynamic_cast((Object *)iommu, TYPE_INTEL_IOMMU_DEVICE) && 1901 object_dynamic_cast((Object *)dev, "vfio-pci")) { 1902 intel_iommu = INTEL_IOMMU_DEVICE(iommu); 1903 if (!intel_iommu->caching_mode) { 1904 error_setg(errp, "Device assignment is not allowed without " 1905 "enabling caching-mode=on for Intel IOMMU."); 1906 return false; 1907 } 1908 } 1909 1910 return true; 1911 } 1912 1913 static void pc_machine_class_init(ObjectClass *oc, void *data) 1914 { 1915 MachineClass *mc = MACHINE_CLASS(oc); 1916 PCMachineClass *pcmc = PC_MACHINE_CLASS(oc); 1917 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); 1918 1919 pcmc->pci_enabled = true; 1920 pcmc->has_acpi_build = true; 1921 pcmc->rsdp_in_ram = true; 1922 pcmc->smbios_defaults = true; 1923 pcmc->smbios_uuid_encoded = true; 1924 pcmc->gigabyte_align = true; 1925 pcmc->has_reserved_memory = true; 1926 pcmc->kvmclock_enabled = true; 1927 pcmc->enforce_aligned_dimm = true; 1928 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported 1929 * to be used at the moment, 32K should be enough for a while. */ 1930 pcmc->acpi_data_size = 0x20000 + 0x8000; 1931 pcmc->linuxboot_dma_enabled = true; 1932 pcmc->pvh_enabled = true; 1933 assert(!mc->get_hotplug_handler); 1934 mc->get_hotplug_handler = pc_get_hotplug_handler; 1935 mc->hotplug_allowed = pc_hotplug_allowed; 1936 mc->cpu_index_to_instance_props = x86_cpu_index_to_props; 1937 mc->get_default_cpu_node_id = x86_get_default_cpu_node_id; 1938 mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids; 1939 mc->auto_enable_numa_with_memhp = true; 1940 mc->has_hotpluggable_cpus = true; 1941 mc->default_boot_order = "cad"; 1942 mc->hot_add_cpu = pc_hot_add_cpu; 1943 mc->smp_parse = pc_smp_parse; 1944 mc->block_default_type = IF_IDE; 1945 mc->max_cpus = 255; 1946 mc->reset = pc_machine_reset; 1947 mc->wakeup = pc_machine_wakeup; 1948 hc->pre_plug = pc_machine_device_pre_plug_cb; 1949 hc->plug = pc_machine_device_plug_cb; 1950 hc->unplug_request = pc_machine_device_unplug_request_cb; 1951 hc->unplug = pc_machine_device_unplug_cb; 1952 mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE; 1953 mc->nvdimm_supported = true; 1954 mc->numa_mem_supported = true; 1955 1956 object_class_property_add(oc, PC_MACHINE_DEVMEM_REGION_SIZE, "int", 1957 pc_machine_get_device_memory_region_size, NULL, 1958 NULL, NULL, &error_abort); 1959 1960 object_class_property_add(oc, PC_MACHINE_VMPORT, "OnOffAuto", 1961 pc_machine_get_vmport, pc_machine_set_vmport, 1962 NULL, NULL, &error_abort); 1963 object_class_property_set_description(oc, PC_MACHINE_VMPORT, 1964 "Enable vmport (pc & q35)", &error_abort); 1965 1966 object_class_property_add_bool(oc, PC_MACHINE_SMBUS, 1967 pc_machine_get_smbus, pc_machine_set_smbus, &error_abort); 1968 1969 object_class_property_add_bool(oc, PC_MACHINE_SATA, 1970 pc_machine_get_sata, pc_machine_set_sata, &error_abort); 1971 1972 object_class_property_add_bool(oc, PC_MACHINE_PIT, 1973 pc_machine_get_pit, pc_machine_set_pit, &error_abort); 1974 } 1975 1976 static const TypeInfo pc_machine_info = { 1977 .name = TYPE_PC_MACHINE, 1978 .parent = TYPE_X86_MACHINE, 1979 .abstract = true, 1980 .instance_size = sizeof(PCMachineState), 1981 .instance_init = pc_machine_initfn, 1982 .class_size = sizeof(PCMachineClass), 1983 .class_init = pc_machine_class_init, 1984 .interfaces = (InterfaceInfo[]) { 1985 { TYPE_HOTPLUG_HANDLER }, 1986 { } 1987 }, 1988 }; 1989 1990 static void pc_machine_register_types(void) 1991 { 1992 type_register_static(&pc_machine_info); 1993 } 1994 1995 type_init(pc_machine_register_types) 1996