2 * QEMU PC System Emulator
4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
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"
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"
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"
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"
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"
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"
96 GlobalProperty pc_compat_4_2[] = {};
97 const size_t pc_compat_4_2_len = G_N_ELEMENTS(pc_compat_4_2);
99 GlobalProperty pc_compat_4_1[] = {};
100 const size_t pc_compat_4_1_len = G_N_ELEMENTS(pc_compat_4_1);
102 GlobalProperty pc_compat_4_0[] = {};
103 const size_t pc_compat_4_0_len = G_N_ELEMENTS(pc_compat_4_0);
105 GlobalProperty pc_compat_3_1[] = {
106 { "intel-iommu", "dma-drain", "off" },
107 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" },
108 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "off" },
109 { "Opteron_G4" "-" TYPE_X86_CPU, "npt", "off" },
110 { "Opteron_G4" "-" TYPE_X86_CPU, "nrip-save", "off" },
111 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "off" },
112 { "Opteron_G5" "-" TYPE_X86_CPU, "npt", "off" },
113 { "Opteron_G5" "-" TYPE_X86_CPU, "nrip-save", "off" },
114 { "EPYC" "-" TYPE_X86_CPU, "npt", "off" },
115 { "EPYC" "-" TYPE_X86_CPU, "nrip-save", "off" },
116 { "EPYC-IBPB" "-" TYPE_X86_CPU, "npt", "off" },
117 { "EPYC-IBPB" "-" TYPE_X86_CPU, "nrip-save", "off" },
118 { "Skylake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
119 { "Skylake-Client-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
120 { "Skylake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
121 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
122 { "Cascadelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
123 { "Icelake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
124 { "Icelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
125 { "Cascadelake-Server" "-" TYPE_X86_CPU, "stepping", "5" },
126 { TYPE_X86_CPU, "x-intel-pt-auto-level", "off" },
128 const size_t pc_compat_3_1_len = G_N_ELEMENTS(pc_compat_3_1);
130 GlobalProperty pc_compat_3_0[] = {
131 { TYPE_X86_CPU, "x-hv-synic-kvm-only", "on" },
132 { "Skylake-Server" "-" TYPE_X86_CPU, "pku", "off" },
133 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "pku", "off" },
135 const size_t pc_compat_3_0_len = G_N_ELEMENTS(pc_compat_3_0);
137 GlobalProperty pc_compat_2_12[] = {
138 { TYPE_X86_CPU, "legacy-cache", "on" },
139 { TYPE_X86_CPU, "topoext", "off" },
140 { "EPYC-" TYPE_X86_CPU, "xlevel", "0x8000000a" },
141 { "EPYC-IBPB-" TYPE_X86_CPU, "xlevel", "0x8000000a" },
143 const size_t pc_compat_2_12_len = G_N_ELEMENTS(pc_compat_2_12);
145 GlobalProperty pc_compat_2_11[] = {
146 { TYPE_X86_CPU, "x-migrate-smi-count", "off" },
147 { "Skylake-Server" "-" TYPE_X86_CPU, "clflushopt", "off" },
149 const size_t pc_compat_2_11_len = G_N_ELEMENTS(pc_compat_2_11);
151 GlobalProperty pc_compat_2_10[] = {
152 { TYPE_X86_CPU, "x-hv-max-vps", "0x40" },
153 { "i440FX-pcihost", "x-pci-hole64-fix", "off" },
154 { "q35-pcihost", "x-pci-hole64-fix", "off" },
156 const size_t pc_compat_2_10_len = G_N_ELEMENTS(pc_compat_2_10);
158 GlobalProperty pc_compat_2_9[] = {
159 { "mch", "extended-tseg-mbytes", "0" },
161 const size_t pc_compat_2_9_len = G_N_ELEMENTS(pc_compat_2_9);
163 GlobalProperty pc_compat_2_8[] = {
164 { TYPE_X86_CPU, "tcg-cpuid", "off" },
165 { "kvmclock", "x-mach-use-reliable-get-clock", "off" },
166 { "ICH9-LPC", "x-smi-broadcast", "off" },
167 { TYPE_X86_CPU, "vmware-cpuid-freq", "off" },
168 { "Haswell-" TYPE_X86_CPU, "stepping", "1" },
170 const size_t pc_compat_2_8_len = G_N_ELEMENTS(pc_compat_2_8);
172 GlobalProperty pc_compat_2_7[] = {
173 { TYPE_X86_CPU, "l3-cache", "off" },
174 { TYPE_X86_CPU, "full-cpuid-auto-level", "off" },
175 { "Opteron_G3" "-" TYPE_X86_CPU, "family", "15" },
176 { "Opteron_G3" "-" TYPE_X86_CPU, "model", "6" },
177 { "Opteron_G3" "-" TYPE_X86_CPU, "stepping", "1" },
178 { "isa-pcspk", "migrate", "off" },
180 const size_t pc_compat_2_7_len = G_N_ELEMENTS(pc_compat_2_7);
182 GlobalProperty pc_compat_2_6[] = {
183 { TYPE_X86_CPU, "cpuid-0xb", "off" },
184 { "vmxnet3", "romfile", "" },
185 { TYPE_X86_CPU, "fill-mtrr-mask", "off" },
186 { "apic-common", "legacy-instance-id", "on", }
188 const size_t pc_compat_2_6_len = G_N_ELEMENTS(pc_compat_2_6);
190 GlobalProperty pc_compat_2_5[] = {};
191 const size_t pc_compat_2_5_len = G_N_ELEMENTS(pc_compat_2_5);
193 GlobalProperty pc_compat_2_4[] = {
194 PC_CPU_MODEL_IDS("2.4.0")
195 { "Haswell-" TYPE_X86_CPU, "abm", "off" },
196 { "Haswell-noTSX-" TYPE_X86_CPU, "abm", "off" },
197 { "Broadwell-" TYPE_X86_CPU, "abm", "off" },
198 { "Broadwell-noTSX-" TYPE_X86_CPU, "abm", "off" },
199 { "host" "-" TYPE_X86_CPU, "host-cache-info", "on" },
200 { TYPE_X86_CPU, "check", "off" },
201 { "qemu64" "-" TYPE_X86_CPU, "sse4a", "on" },
202 { "qemu64" "-" TYPE_X86_CPU, "abm", "on" },
203 { "qemu64" "-" TYPE_X86_CPU, "popcnt", "on" },
204 { "qemu32" "-" TYPE_X86_CPU, "popcnt", "on" },
205 { "Opteron_G2" "-" TYPE_X86_CPU, "rdtscp", "on" },
206 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "on" },
207 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "on" },
208 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "on", }
210 const size_t pc_compat_2_4_len = G_N_ELEMENTS(pc_compat_2_4);
212 GlobalProperty pc_compat_2_3[] = {
213 PC_CPU_MODEL_IDS("2.3.0")
214 { TYPE_X86_CPU, "arat", "off" },
215 { "qemu64" "-" TYPE_X86_CPU, "min-level", "4" },
216 { "kvm64" "-" TYPE_X86_CPU, "min-level", "5" },
217 { "pentium3" "-" TYPE_X86_CPU, "min-level", "2" },
218 { "n270" "-" TYPE_X86_CPU, "min-level", "5" },
219 { "Conroe" "-" TYPE_X86_CPU, "min-level", "4" },
220 { "Penryn" "-" TYPE_X86_CPU, "min-level", "4" },
221 { "Nehalem" "-" TYPE_X86_CPU, "min-level", "4" },
222 { "n270" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
223 { "Penryn" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
224 { "Conroe" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
225 { "Nehalem" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
226 { "Westmere" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
227 { "SandyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
228 { "IvyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
229 { "Haswell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
230 { "Haswell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
231 { "Broadwell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
232 { "Broadwell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
233 { TYPE_X86_CPU, "kvm-no-smi-migration", "on" },
235 const size_t pc_compat_2_3_len = G_N_ELEMENTS(pc_compat_2_3);
237 GlobalProperty pc_compat_2_2[] = {
238 PC_CPU_MODEL_IDS("2.2.0")
239 { "kvm64" "-" TYPE_X86_CPU, "vme", "off" },
240 { "kvm32" "-" TYPE_X86_CPU, "vme", "off" },
241 { "Conroe" "-" TYPE_X86_CPU, "vme", "off" },
242 { "Penryn" "-" TYPE_X86_CPU, "vme", "off" },
243 { "Nehalem" "-" TYPE_X86_CPU, "vme", "off" },
244 { "Westmere" "-" TYPE_X86_CPU, "vme", "off" },
245 { "SandyBridge" "-" TYPE_X86_CPU, "vme", "off" },
246 { "Haswell" "-" TYPE_X86_CPU, "vme", "off" },
247 { "Broadwell" "-" TYPE_X86_CPU, "vme", "off" },
248 { "Opteron_G1" "-" TYPE_X86_CPU, "vme", "off" },
249 { "Opteron_G2" "-" TYPE_X86_CPU, "vme", "off" },
250 { "Opteron_G3" "-" TYPE_X86_CPU, "vme", "off" },
251 { "Opteron_G4" "-" TYPE_X86_CPU, "vme", "off" },
252 { "Opteron_G5" "-" TYPE_X86_CPU, "vme", "off" },
253 { "Haswell" "-" TYPE_X86_CPU, "f16c", "off" },
254 { "Haswell" "-" TYPE_X86_CPU, "rdrand", "off" },
255 { "Broadwell" "-" TYPE_X86_CPU, "f16c", "off" },
256 { "Broadwell" "-" TYPE_X86_CPU, "rdrand", "off" },
258 const size_t pc_compat_2_2_len = G_N_ELEMENTS(pc_compat_2_2);
260 GlobalProperty pc_compat_2_1[] = {
261 PC_CPU_MODEL_IDS("2.1.0")
262 { "coreduo" "-" TYPE_X86_CPU, "vmx", "on" },
263 { "core2duo" "-" TYPE_X86_CPU, "vmx", "on" },
265 const size_t pc_compat_2_1_len = G_N_ELEMENTS(pc_compat_2_1);
267 GlobalProperty pc_compat_2_0[] = {
268 PC_CPU_MODEL_IDS("2.0.0")
269 { "virtio-scsi-pci", "any_layout", "off" },
270 { "PIIX4_PM", "memory-hotplug-support", "off" },
271 { "apic", "version", "0x11" },
272 { "nec-usb-xhci", "superspeed-ports-first", "off" },
273 { "nec-usb-xhci", "force-pcie-endcap", "on" },
274 { "pci-serial", "prog_if", "0" },
275 { "pci-serial-2x", "prog_if", "0" },
276 { "pci-serial-4x", "prog_if", "0" },
277 { "virtio-net-pci", "guest_announce", "off" },
278 { "ICH9-LPC", "memory-hotplug-support", "off" },
279 { "xio3130-downstream", COMPAT_PROP_PCP, "off" },
280 { "ioh3420", COMPAT_PROP_PCP, "off" },
282 const size_t pc_compat_2_0_len = G_N_ELEMENTS(pc_compat_2_0);
284 GlobalProperty pc_compat_1_7[] = {
285 PC_CPU_MODEL_IDS("1.7.0")
286 { TYPE_USB_DEVICE, "msos-desc", "no" },
287 { "PIIX4_PM", "acpi-pci-hotplug-with-bridge-support", "off" },
288 { "hpet", HPET_INTCAP, "4" },
290 const size_t pc_compat_1_7_len = G_N_ELEMENTS(pc_compat_1_7);
292 GlobalProperty pc_compat_1_6[] = {
293 PC_CPU_MODEL_IDS("1.6.0")
294 { "e1000", "mitigation", "off" },
295 { "qemu64-" TYPE_X86_CPU, "model", "2" },
296 { "qemu32-" TYPE_X86_CPU, "model", "3" },
297 { "i440FX-pcihost", "short_root_bus", "1" },
298 { "q35-pcihost", "short_root_bus", "1" },
300 const size_t pc_compat_1_6_len = G_N_ELEMENTS(pc_compat_1_6);
302 GlobalProperty pc_compat_1_5[] = {
303 PC_CPU_MODEL_IDS("1.5.0")
304 { "Conroe-" TYPE_X86_CPU, "model", "2" },
305 { "Conroe-" TYPE_X86_CPU, "min-level", "2" },
306 { "Penryn-" TYPE_X86_CPU, "model", "2" },
307 { "Penryn-" TYPE_X86_CPU, "min-level", "2" },
308 { "Nehalem-" TYPE_X86_CPU, "model", "2" },
309 { "Nehalem-" TYPE_X86_CPU, "min-level", "2" },
310 { "virtio-net-pci", "any_layout", "off" },
311 { TYPE_X86_CPU, "pmu", "on" },
312 { "i440FX-pcihost", "short_root_bus", "0" },
313 { "q35-pcihost", "short_root_bus", "0" },
315 const size_t pc_compat_1_5_len = G_N_ELEMENTS(pc_compat_1_5);
317 GlobalProperty pc_compat_1_4[] = {
318 PC_CPU_MODEL_IDS("1.4.0")
319 { "scsi-hd", "discard_granularity", "0" },
320 { "scsi-cd", "discard_granularity", "0" },
321 { "scsi-disk", "discard_granularity", "0" },
322 { "ide-hd", "discard_granularity", "0" },
323 { "ide-cd", "discard_granularity", "0" },
324 { "ide-drive", "discard_granularity", "0" },
325 { "virtio-blk-pci", "discard_granularity", "0" },
326 /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string: */
327 { "virtio-serial-pci", "vectors", "0xFFFFFFFF" },
328 { "virtio-net-pci", "ctrl_guest_offloads", "off" },
329 { "e1000", "romfile", "pxe-e1000.rom" },
330 { "ne2k_pci", "romfile", "pxe-ne2k_pci.rom" },
331 { "pcnet", "romfile", "pxe-pcnet.rom" },
332 { "rtl8139", "romfile", "pxe-rtl8139.rom" },
333 { "virtio-net-pci", "romfile", "pxe-virtio.rom" },
334 { "486-" TYPE_X86_CPU, "model", "0" },
335 { "n270" "-" TYPE_X86_CPU, "movbe", "off" },
336 { "Westmere" "-" TYPE_X86_CPU, "pclmulqdq", "off" },
338 const size_t pc_compat_1_4_len = G_N_ELEMENTS(pc_compat_1_4);
340 GSIState *pc_gsi_create(qemu_irq **irqs, bool pci_enabled)
344 s = g_new0(GSIState, 1);
345 if (kvm_ioapic_in_kernel()) {
346 kvm_pc_setup_irq_routing(pci_enabled);
347 *irqs = qemu_allocate_irqs(kvm_pc_gsi_handler, s, GSI_NUM_PINS);
349 *irqs = qemu_allocate_irqs(gsi_handler, s, GSI_NUM_PINS);
355 static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
360 static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
362 return 0xffffffffffffffffULL;
365 /* MSDOS compatibility mode FPU exception support */
366 static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
374 static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
376 return 0xffffffffffffffffULL;
379 /* PC cmos mappings */
381 #define REG_EQUIPMENT_BYTE 0x14
383 int cmos_get_fd_drive_type(FloppyDriveType fd0)
388 case FLOPPY_DRIVE_TYPE_144:
389 /* 1.44 Mb 3"5 drive */
392 case FLOPPY_DRIVE_TYPE_288:
393 /* 2.88 Mb 3"5 drive */
396 case FLOPPY_DRIVE_TYPE_120:
397 /* 1.2 Mb 5"5 drive */
400 case FLOPPY_DRIVE_TYPE_NONE:
408 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
409 int16_t cylinders, int8_t heads, int8_t sectors)
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);
423 /* convert boot_device letter to something recognizable by the bios */
424 static int boot_device2nibble(char boot_device)
426 switch(boot_device) {
429 return 0x01; /* floppy boot */
431 return 0x02; /* hard drive boot */
433 return 0x03; /* CD-ROM boot */
435 return 0x04; /* Network boot */
440 static void set_boot_dev(ISADevice *s, const char *boot_device, Error **errp)
442 #define PC_MAX_BOOT_DEVICES 3
443 int nbds, bds[3] = { 0, };
446 nbds = strlen(boot_device);
447 if (nbds > PC_MAX_BOOT_DEVICES) {
448 error_setg(errp, "Too many boot devices for PC");
451 for (i = 0; i < nbds; i++) {
452 bds[i] = boot_device2nibble(boot_device[i]);
454 error_setg(errp, "Invalid boot device for PC: '%c'",
459 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
460 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
463 static void pc_boot_set(void *opaque, const char *boot_device, Error **errp)
465 set_boot_dev(opaque, boot_device, errp);
468 static void pc_cmos_init_floppy(ISADevice *rtc_state, ISADevice *floppy)
471 FloppyDriveType fd_type[2] = { FLOPPY_DRIVE_TYPE_NONE,
472 FLOPPY_DRIVE_TYPE_NONE };
476 for (i = 0; i < 2; i++) {
477 fd_type[i] = isa_fdc_get_drive_type(floppy, i);
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);
484 val = rtc_get_memory(rtc_state, REG_EQUIPMENT_BYTE);
486 if (fd_type[0] != FLOPPY_DRIVE_TYPE_NONE) {
489 if (fd_type[1] != FLOPPY_DRIVE_TYPE_NONE) {
496 val |= 0x01; /* 1 drive, ready for boot */
499 val |= 0x41; /* 2 drives, ready for boot */
502 rtc_set_memory(rtc_state, REG_EQUIPMENT_BYTE, val);
505 typedef struct pc_cmos_init_late_arg {
506 ISADevice *rtc_state;
508 } pc_cmos_init_late_arg;
510 typedef struct check_fdc_state {
515 static int check_fdc(Object *obj, void *opaque)
517 CheckFdcState *state = opaque;
520 Error *local_err = NULL;
522 fdc = object_dynamic_cast(obj, TYPE_ISA_FDC);
527 iobase = object_property_get_uint(obj, "iobase", &local_err);
528 if (local_err || iobase != 0x3f0) {
529 error_free(local_err);
534 state->multiple = true;
536 state->floppy = ISA_DEVICE(obj);
541 static const char * const fdc_container_path[] = {
542 "/unattached", "/peripheral", "/peripheral-anon"
546 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers
549 ISADevice *pc_find_fdc0(void)
553 CheckFdcState state = { 0 };
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);
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 "
570 static void pc_cmos_init_late(void *opaque)
572 pc_cmos_init_late_arg *arg = opaque;
573 ISADevice *s = arg->rtc_state;
575 int8_t heads, sectors;
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);
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);
590 rtc_set_memory(s, 0x12, val);
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);
606 rtc_set_memory(s, 0x39, val);
608 pc_cmos_init_floppy(s, pc_find_fdc0());
610 qemu_unregister_reset(pc_cmos_init_late, opaque);
613 void pc_cmos_init(PCMachineState *pcms,
614 BusState *idebus0, BusState *idebus1,
618 static pc_cmos_init_late_arg arg;
619 X86MachineState *x86ms = X86_MACHINE(pcms);
621 /* various important CMOS locations needed by PC/Bochs bios */
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;
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);
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);
656 object_property_add_link(OBJECT(pcms), "rtc_state",
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);
664 set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal);
667 val |= 0x02; /* FPU is there */
668 val |= 0x04; /* PS/2 mouse installed */
669 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
671 /* hard drives and FDC */
673 arg.idebus[0] = idebus0;
674 arg.idebus[1] = idebus1;
675 qemu_register_reset(pc_cmos_init_late, &arg);
678 #define TYPE_PORT92 "port92"
679 #define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92)
681 /* port 92 stuff: could be split off */
682 typedef struct Port92State {
683 ISADevice parent_obj;
690 static void port92_write(void *opaque, hwaddr addr, uint64_t val,
693 Port92State *s = opaque;
694 int oldval = s->outport;
696 trace_port92_write(val);
698 qemu_set_irq(s->a20_out, (val >> 1) & 1);
699 if ((val & 1) && !(oldval & 1)) {
700 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
704 static uint64_t port92_read(void *opaque, hwaddr addr,
707 Port92State *s = opaque;
711 trace_port92_read(ret);
715 static void port92_init(ISADevice *dev, qemu_irq a20_out)
717 qdev_connect_gpio_out_named(DEVICE(dev), PORT92_A20_LINE, 0, a20_out);
720 static const VMStateDescription vmstate_port92_isa = {
723 .minimum_version_id = 1,
724 .fields = (VMStateField[]) {
725 VMSTATE_UINT8(outport, Port92State),
726 VMSTATE_END_OF_LIST()
730 static void port92_reset(DeviceState *d)
732 Port92State *s = PORT92(d);
737 static const MemoryRegionOps port92_ops = {
739 .write = port92_write,
741 .min_access_size = 1,
742 .max_access_size = 1,
744 .endianness = DEVICE_LITTLE_ENDIAN,
747 static void port92_initfn(Object *obj)
749 Port92State *s = PORT92(obj);
751 memory_region_init_io(&s->io, OBJECT(s), &port92_ops, s, "port92", 1);
755 qdev_init_gpio_out_named(DEVICE(obj), &s->a20_out, PORT92_A20_LINE, 1);
758 static void port92_realizefn(DeviceState *dev, Error **errp)
760 ISADevice *isadev = ISA_DEVICE(dev);
761 Port92State *s = PORT92(dev);
763 isa_register_ioport(isadev, &s->io, 0x92);
766 static void port92_class_initfn(ObjectClass *klass, void *data)
768 DeviceClass *dc = DEVICE_CLASS(klass);
770 dc->realize = port92_realizefn;
771 dc->reset = port92_reset;
772 dc->vmsd = &vmstate_port92_isa;
774 * Reason: unlike ordinary ISA devices, this one needs additional
775 * wiring: its A20 output line needs to be wired up by
778 dc->user_creatable = false;
781 static const TypeInfo port92_info = {
783 .parent = TYPE_ISA_DEVICE,
784 .instance_size = sizeof(Port92State),
785 .instance_init = port92_initfn,
786 .class_init = port92_class_initfn,
789 static void port92_register_types(void)
791 type_register_static(&port92_info);
794 type_init(port92_register_types)
796 static void handle_a20_line_change(void *opaque, int irq, int level)
798 X86CPU *cpu = opaque;
800 /* XXX: send to all CPUs ? */
801 /* XXX: add logic to handle multiple A20 line sources */
802 x86_cpu_set_a20(cpu, level);
805 #define NE2000_NB_MAX 6
807 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
809 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
811 void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
813 static int nb_ne2k = 0;
815 if (nb_ne2k == NE2000_NB_MAX)
817 isa_ne2000_init(bus, ne2000_io[nb_ne2k],
818 ne2000_irq[nb_ne2k], nd);
822 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
824 X86CPU *cpu = opaque;
827 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI);
832 * This function is very similar to smp_parse()
833 * in hw/core/machine.c but includes CPU die support.
835 void pc_smp_parse(MachineState *ms, QemuOpts *opts)
837 X86MachineState *x86ms = X86_MACHINE(ms);
840 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
841 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
842 unsigned dies = qemu_opt_get_number(opts, "dies", 1);
843 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
844 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
846 /* compute missing values, prefer sockets over cores over threads */
847 if (cpus == 0 || sockets == 0) {
848 cores = cores > 0 ? cores : 1;
849 threads = threads > 0 ? threads : 1;
851 sockets = sockets > 0 ? sockets : 1;
852 cpus = cores * threads * dies * sockets;
855 qemu_opt_get_number(opts, "maxcpus", cpus);
856 sockets = ms->smp.max_cpus / (cores * threads * dies);
858 } else if (cores == 0) {
859 threads = threads > 0 ? threads : 1;
860 cores = cpus / (sockets * dies * threads);
861 cores = cores > 0 ? cores : 1;
862 } else if (threads == 0) {
863 threads = cpus / (cores * dies * sockets);
864 threads = threads > 0 ? threads : 1;
865 } else if (sockets * dies * cores * threads < cpus) {
866 error_report("cpu topology: "
867 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) < "
869 sockets, dies, cores, threads, cpus);
874 qemu_opt_get_number(opts, "maxcpus", cpus);
876 if (ms->smp.max_cpus < cpus) {
877 error_report("maxcpus must be equal to or greater than smp");
881 if (sockets * dies * cores * threads > ms->smp.max_cpus) {
882 error_report("cpu topology: "
883 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) > "
885 sockets, dies, cores, threads,
890 if (sockets * dies * cores * threads != ms->smp.max_cpus) {
891 warn_report("Invalid CPU topology deprecated: "
892 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) "
894 sockets, dies, cores, threads,
899 ms->smp.cores = cores;
900 ms->smp.threads = threads;
901 x86ms->smp_dies = dies;
904 if (ms->smp.cpus > 1) {
905 Error *blocker = NULL;
906 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
907 replay_add_blocker(blocker);
911 void pc_hot_add_cpu(MachineState *ms, const int64_t id, Error **errp)
913 X86MachineState *x86ms = X86_MACHINE(ms);
914 int64_t apic_id = x86_cpu_apic_id_from_index(x86ms, id);
915 Error *local_err = NULL;
918 error_setg(errp, "Invalid CPU id: %" PRIi64, id);
922 if (apic_id >= ACPI_CPU_HOTPLUG_ID_LIMIT) {
923 error_setg(errp, "Unable to add CPU: %" PRIi64
924 ", resulting APIC ID (%" PRIi64 ") is too large",
930 x86_cpu_new(X86_MACHINE(ms), apic_id, &local_err);
932 error_propagate(errp, local_err);
937 static void rtc_set_cpus_count(ISADevice *rtc, uint16_t cpus_count)
939 if (cpus_count > 0xff) {
940 /* If the number of CPUs can't be represented in 8 bits, the
941 * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just
942 * to make old BIOSes fail more predictably.
944 rtc_set_memory(rtc, 0x5f, 0);
946 rtc_set_memory(rtc, 0x5f, cpus_count - 1);
951 void pc_machine_done(Notifier *notifier, void *data)
953 PCMachineState *pcms = container_of(notifier,
954 PCMachineState, machine_done);
955 X86MachineState *x86ms = X86_MACHINE(pcms);
956 PCIBus *bus = pcms->bus;
958 /* set the number of CPUs */
959 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
964 QLIST_FOREACH(bus, &bus->child, sibling) {
965 /* look for expander root buses */
966 if (pci_bus_is_root(bus)) {
970 if (extra_hosts && x86ms->fw_cfg) {
971 uint64_t *val = g_malloc(sizeof(*val));
972 *val = cpu_to_le64(extra_hosts);
973 fw_cfg_add_file(x86ms->fw_cfg,
974 "etc/extra-pci-roots", val, sizeof(*val));
980 fw_cfg_build_smbios(MACHINE(pcms), x86ms->fw_cfg);
981 fw_cfg_build_feature_control(MACHINE(pcms), x86ms->fw_cfg);
982 /* update FW_CFG_NB_CPUS to account for -device added CPUs */
983 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
986 if (x86ms->apic_id_limit > 255 && !xen_enabled()) {
987 IntelIOMMUState *iommu = INTEL_IOMMU_DEVICE(x86_iommu_get_default());
989 if (!iommu || !x86_iommu_ir_supported(X86_IOMMU_DEVICE(iommu)) ||
990 iommu->intr_eim != ON_OFF_AUTO_ON) {
991 error_report("current -smp configuration requires "
992 "Extended Interrupt Mode enabled. "
993 "You can add an IOMMU using: "
994 "-device intel-iommu,intremap=on,eim=on");
1000 void pc_guest_info_init(PCMachineState *pcms)
1003 MachineState *ms = MACHINE(pcms);
1004 X86MachineState *x86ms = X86_MACHINE(pcms);
1006 x86ms->apic_xrupt_override = kvm_allows_irq0_override();
1007 pcms->numa_nodes = ms->numa_state->num_nodes;
1008 pcms->node_mem = g_malloc0(pcms->numa_nodes *
1009 sizeof *pcms->node_mem);
1010 for (i = 0; i < ms->numa_state->num_nodes; i++) {
1011 pcms->node_mem[i] = ms->numa_state->nodes[i].node_mem;
1014 pcms->machine_done.notify = pc_machine_done;
1015 qemu_add_machine_init_done_notifier(&pcms->machine_done);
1018 /* setup pci memory address space mapping into system address space */
1019 void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory,
1020 MemoryRegion *pci_address_space)
1022 /* Set to lower priority than RAM */
1023 memory_region_add_subregion_overlap(system_memory, 0x0,
1024 pci_address_space, -1);
1027 void xen_load_linux(PCMachineState *pcms)
1031 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1032 X86MachineState *x86ms = X86_MACHINE(pcms);
1034 assert(MACHINE(pcms)->kernel_filename != NULL);
1036 fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE);
1037 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
1040 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size,
1041 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled);
1042 for (i = 0; i < nb_option_roms; i++) {
1043 assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
1044 !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
1045 !strcmp(option_rom[i].name, "pvh.bin") ||
1046 !strcmp(option_rom[i].name, "multiboot.bin"));
1047 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1049 x86ms->fw_cfg = fw_cfg;
1052 void pc_memory_init(PCMachineState *pcms,
1053 MemoryRegion *system_memory,
1054 MemoryRegion *rom_memory,
1055 MemoryRegion **ram_memory)
1058 MemoryRegion *ram, *option_rom_mr;
1059 MemoryRegion *ram_below_4g, *ram_above_4g;
1061 MachineState *machine = MACHINE(pcms);
1062 MachineClass *mc = MACHINE_GET_CLASS(machine);
1063 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1064 X86MachineState *x86ms = X86_MACHINE(pcms);
1066 assert(machine->ram_size == x86ms->below_4g_mem_size +
1067 x86ms->above_4g_mem_size);
1069 linux_boot = (machine->kernel_filename != NULL);
1071 /* Allocate RAM. We allocate it as a single memory region and use
1072 * aliases to address portions of it, mostly for backwards compatibility
1073 * with older qemus that used qemu_ram_alloc().
1075 ram = g_malloc(sizeof(*ram));
1076 memory_region_allocate_system_memory(ram, NULL, "pc.ram",
1079 ram_below_4g = g_malloc(sizeof(*ram_below_4g));
1080 memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram,
1081 0, x86ms->below_4g_mem_size);
1082 memory_region_add_subregion(system_memory, 0, ram_below_4g);
1083 e820_add_entry(0, x86ms->below_4g_mem_size, E820_RAM);
1084 if (x86ms->above_4g_mem_size > 0) {
1085 ram_above_4g = g_malloc(sizeof(*ram_above_4g));
1086 memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram,
1087 x86ms->below_4g_mem_size,
1088 x86ms->above_4g_mem_size);
1089 memory_region_add_subregion(system_memory, 0x100000000ULL,
1091 e820_add_entry(0x100000000ULL, x86ms->above_4g_mem_size, E820_RAM);
1094 if (!pcmc->has_reserved_memory &&
1095 (machine->ram_slots ||
1096 (machine->maxram_size > machine->ram_size))) {
1098 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s",
1103 /* always allocate the device memory information */
1104 machine->device_memory = g_malloc0(sizeof(*machine->device_memory));
1106 /* initialize device memory address space */
1107 if (pcmc->has_reserved_memory &&
1108 (machine->ram_size < machine->maxram_size)) {
1109 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
1111 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
1112 error_report("unsupported amount of memory slots: %"PRIu64,
1113 machine->ram_slots);
1117 if (QEMU_ALIGN_UP(machine->maxram_size,
1118 TARGET_PAGE_SIZE) != machine->maxram_size) {
1119 error_report("maximum memory size must by aligned to multiple of "
1120 "%d bytes", TARGET_PAGE_SIZE);
1124 machine->device_memory->base =
1125 ROUND_UP(0x100000000ULL + x86ms->above_4g_mem_size, 1 * GiB);
1127 if (pcmc->enforce_aligned_dimm) {
1128 /* size device region assuming 1G page max alignment per slot */
1129 device_mem_size += (1 * GiB) * machine->ram_slots;
1132 if ((machine->device_memory->base + device_mem_size) <
1134 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT,
1135 machine->maxram_size);
1139 memory_region_init(&machine->device_memory->mr, OBJECT(pcms),
1140 "device-memory", device_mem_size);
1141 memory_region_add_subregion(system_memory, machine->device_memory->base,
1142 &machine->device_memory->mr);
1145 /* Initialize PC system firmware */
1146 pc_system_firmware_init(pcms, rom_memory);
1148 option_rom_mr = g_malloc(sizeof(*option_rom_mr));
1149 memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE,
1151 if (pcmc->pci_enabled) {
1152 memory_region_set_readonly(option_rom_mr, true);
1154 memory_region_add_subregion_overlap(rom_memory,
1159 fw_cfg = fw_cfg_arch_create(machine,
1160 x86ms->boot_cpus, x86ms->apic_id_limit);
1164 if (pcmc->has_reserved_memory && machine->device_memory->base) {
1165 uint64_t *val = g_malloc(sizeof(*val));
1166 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1167 uint64_t res_mem_end = machine->device_memory->base;
1169 if (!pcmc->broken_reserved_end) {
1170 res_mem_end += memory_region_size(&machine->device_memory->mr);
1172 *val = cpu_to_le64(ROUND_UP(res_mem_end, 1 * GiB));
1173 fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val));
1177 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size,
1178 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled);
1181 for (i = 0; i < nb_option_roms; i++) {
1182 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1184 x86ms->fw_cfg = fw_cfg;
1186 /* Init default IOAPIC address space */
1187 x86ms->ioapic_as = &address_space_memory;
1189 /* Init ACPI memory hotplug IO base address */
1190 pcms->memhp_io_base = ACPI_MEMORY_HOTPLUG_BASE;
1194 * The 64bit pci hole starts after "above 4G RAM" and
1195 * potentially the space reserved for memory hotplug.
1197 uint64_t pc_pci_hole64_start(void)
1199 PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
1200 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1201 MachineState *ms = MACHINE(pcms);
1202 X86MachineState *x86ms = X86_MACHINE(pcms);
1203 uint64_t hole64_start = 0;
1205 if (pcmc->has_reserved_memory && ms->device_memory->base) {
1206 hole64_start = ms->device_memory->base;
1207 if (!pcmc->broken_reserved_end) {
1208 hole64_start += memory_region_size(&ms->device_memory->mr);
1211 hole64_start = 0x100000000ULL + x86ms->above_4g_mem_size;
1214 return ROUND_UP(hole64_start, 1 * GiB);
1217 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
1219 DeviceState *dev = NULL;
1221 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA);
1223 PCIDevice *pcidev = pci_vga_init(pci_bus);
1224 dev = pcidev ? &pcidev->qdev : NULL;
1225 } else if (isa_bus) {
1226 ISADevice *isadev = isa_vga_init(isa_bus);
1227 dev = isadev ? DEVICE(isadev) : NULL;
1229 rom_reset_order_override();
1233 static const MemoryRegionOps ioport80_io_ops = {
1234 .write = ioport80_write,
1235 .read = ioport80_read,
1236 .endianness = DEVICE_NATIVE_ENDIAN,
1238 .min_access_size = 1,
1239 .max_access_size = 1,
1243 static const MemoryRegionOps ioportF0_io_ops = {
1244 .write = ioportF0_write,
1245 .read = ioportF0_read,
1246 .endianness = DEVICE_NATIVE_ENDIAN,
1248 .min_access_size = 1,
1249 .max_access_size = 1,
1253 static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport)
1256 DriveInfo *fd[MAX_FD];
1258 ISADevice *i8042, *port92, *vmmouse;
1260 serial_hds_isa_init(isa_bus, 0, MAX_ISA_SERIAL_PORTS);
1261 parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
1263 for (i = 0; i < MAX_FD; i++) {
1264 fd[i] = drive_get(IF_FLOPPY, 0, i);
1265 create_fdctrl |= !!fd[i];
1267 if (create_fdctrl) {
1268 fdctrl_init_isa(isa_bus, fd);
1271 i8042 = isa_create_simple(isa_bus, "i8042");
1273 vmport_init(isa_bus);
1274 vmmouse = isa_try_create(isa_bus, "vmmouse");
1279 DeviceState *dev = DEVICE(vmmouse);
1280 qdev_prop_set_ptr(dev, "ps2_mouse", i8042);
1281 qdev_init_nofail(dev);
1283 port92 = isa_create_simple(isa_bus, "port92");
1285 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1286 i8042_setup_a20_line(i8042, a20_line[0]);
1287 port92_init(port92, a20_line[1]);
1291 void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
1292 ISADevice **rtc_state,
1299 DeviceState *hpet = NULL;
1300 int pit_isa_irq = 0;
1301 qemu_irq pit_alt_irq = NULL;
1302 qemu_irq rtc_irq = NULL;
1303 ISADevice *pit = NULL;
1304 MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
1305 MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
1307 memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1);
1308 memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
1310 memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, "ioportF0", 1);
1311 memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
1314 * Check if an HPET shall be created.
1316 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1317 * when the HPET wants to take over. Thus we have to disable the latter.
1319 if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1320 /* In order to set property, here not using sysbus_try_create_simple */
1321 hpet = qdev_try_create(NULL, TYPE_HPET);
1323 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7
1324 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
1327 uint8_t compat = object_property_get_uint(OBJECT(hpet),
1330 qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs);
1332 qdev_init_nofail(hpet);
1333 sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE);
1335 for (i = 0; i < GSI_NUM_PINS; i++) {
1336 sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);
1339 pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
1340 rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
1343 *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq);
1345 qemu_register_boot_set(pc_boot_set, *rtc_state);
1347 if (!xen_enabled() && has_pit) {
1348 if (kvm_pit_in_kernel()) {
1349 pit = kvm_pit_init(isa_bus, 0x40);
1351 pit = i8254_pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
1354 /* connect PIT to output control line of the HPET */
1355 qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0));
1357 pcspk_init(isa_bus, pit);
1360 i8257_dma_init(isa_bus, 0);
1363 pc_superio_init(isa_bus, create_fdctrl, no_vmport);
1366 void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus)
1370 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC);
1371 for (i = 0; i < nb_nics; i++) {
1372 NICInfo *nd = &nd_table[i];
1373 const char *model = nd->model ? nd->model : pcmc->default_nic_model;
1375 if (g_str_equal(model, "ne2k_isa")) {
1376 pc_init_ne2k_isa(isa_bus, nd);
1378 pci_nic_init_nofail(nd, pci_bus, model, NULL);
1381 rom_reset_order_override();
1384 void pc_i8259_create(ISABus *isa_bus, qemu_irq *i8259_irqs)
1388 if (kvm_pic_in_kernel()) {
1389 i8259 = kvm_i8259_init(isa_bus);
1390 } else if (xen_enabled()) {
1391 i8259 = xen_interrupt_controller_init();
1393 i8259 = i8259_init(isa_bus, x86_allocate_cpu_irq());
1396 for (size_t i = 0; i < ISA_NUM_IRQS; i++) {
1397 i8259_irqs[i] = i8259[i];
1403 static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
1406 const PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1407 const PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1408 const MachineState *ms = MACHINE(hotplug_dev);
1409 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1410 const uint64_t legacy_align = TARGET_PAGE_SIZE;
1411 Error *local_err = NULL;
1414 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1415 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1416 * addition to cover this case.
1418 if (!pcms->acpi_dev || !acpi_enabled) {
1420 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1424 if (is_nvdimm && !ms->nvdimms_state->is_enabled) {
1425 error_setg(errp, "nvdimm is not enabled: missing 'nvdimm' in '-M'");
1429 hotplug_handler_pre_plug(pcms->acpi_dev, dev, &local_err);
1431 error_propagate(errp, local_err);
1435 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev),
1436 pcmc->enforce_aligned_dimm ? NULL : &legacy_align, errp);
1439 static void pc_memory_plug(HotplugHandler *hotplug_dev,
1440 DeviceState *dev, Error **errp)
1442 Error *local_err = NULL;
1443 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1444 MachineState *ms = MACHINE(hotplug_dev);
1445 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1447 pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err);
1453 nvdimm_plug(ms->nvdimms_state);
1456 hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort);
1458 error_propagate(errp, local_err);
1461 static void pc_memory_unplug_request(HotplugHandler *hotplug_dev,
1462 DeviceState *dev, Error **errp)
1464 Error *local_err = NULL;
1465 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1468 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1469 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1470 * addition to cover this case.
1472 if (!pcms->acpi_dev || !acpi_enabled) {
1473 error_setg(&local_err,
1474 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1478 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
1479 error_setg(&local_err,
1480 "nvdimm device hot unplug is not supported yet.");
1484 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev,
1487 error_propagate(errp, local_err);
1490 static void pc_memory_unplug(HotplugHandler *hotplug_dev,
1491 DeviceState *dev, Error **errp)
1493 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1494 Error *local_err = NULL;
1496 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1501 pc_dimm_unplug(PC_DIMM(dev), MACHINE(pcms));
1502 object_property_set_bool(OBJECT(dev), false, "realized", NULL);
1504 error_propagate(errp, local_err);
1507 static int pc_apic_cmp(const void *a, const void *b)
1509 CPUArchId *apic_a = (CPUArchId *)a;
1510 CPUArchId *apic_b = (CPUArchId *)b;
1512 return apic_a->arch_id - apic_b->arch_id;
1515 /* returns pointer to CPUArchId descriptor that matches CPU's apic_id
1516 * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
1517 * entry corresponding to CPU's apic_id returns NULL.
1519 static CPUArchId *pc_find_cpu_slot(MachineState *ms, uint32_t id, int *idx)
1521 CPUArchId apic_id, *found_cpu;
1523 apic_id.arch_id = id;
1524 found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
1525 ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus),
1527 if (found_cpu && idx) {
1528 *idx = found_cpu - ms->possible_cpus->cpus;
1533 static void pc_cpu_plug(HotplugHandler *hotplug_dev,
1534 DeviceState *dev, Error **errp)
1536 CPUArchId *found_cpu;
1537 Error *local_err = NULL;
1538 X86CPU *cpu = X86_CPU(dev);
1539 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1540 X86MachineState *x86ms = X86_MACHINE(pcms);
1542 if (pcms->acpi_dev) {
1543 hotplug_handler_plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1549 /* increment the number of CPUs */
1552 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
1554 if (x86ms->fw_cfg) {
1555 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
1558 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
1559 found_cpu->cpu = OBJECT(dev);
1561 error_propagate(errp, local_err);
1563 static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
1564 DeviceState *dev, Error **errp)
1567 Error *local_err = NULL;
1568 X86CPU *cpu = X86_CPU(dev);
1569 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1571 if (!pcms->acpi_dev) {
1572 error_setg(&local_err, "CPU hot unplug not supported without ACPI");
1576 pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
1579 error_setg(&local_err, "Boot CPU is unpluggable");
1583 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev,
1590 error_propagate(errp, local_err);
1594 static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev,
1595 DeviceState *dev, Error **errp)
1597 CPUArchId *found_cpu;
1598 Error *local_err = NULL;
1599 X86CPU *cpu = X86_CPU(dev);
1600 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1601 X86MachineState *x86ms = X86_MACHINE(pcms);
1603 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
1608 found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
1609 found_cpu->cpu = NULL;
1610 object_property_set_bool(OBJECT(dev), false, "realized", NULL);
1612 /* decrement the number of CPUs */
1614 /* Update the number of CPUs in CMOS */
1615 rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
1616 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
1618 error_propagate(errp, local_err);
1621 static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
1622 DeviceState *dev, Error **errp)
1626 CPUArchId *cpu_slot;
1627 X86CPUTopoInfo topo;
1628 X86CPU *cpu = X86_CPU(dev);
1629 CPUX86State *env = &cpu->env;
1630 MachineState *ms = MACHINE(hotplug_dev);
1631 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1632 X86MachineState *x86ms = X86_MACHINE(pcms);
1633 unsigned int smp_cores = ms->smp.cores;
1634 unsigned int smp_threads = ms->smp.threads;
1636 if(!object_dynamic_cast(OBJECT(cpu), ms->cpu_type)) {
1637 error_setg(errp, "Invalid CPU type, expected cpu type: '%s'",
1642 env->nr_dies = x86ms->smp_dies;
1645 * If APIC ID is not set,
1646 * set it based on socket/die/core/thread properties.
1648 if (cpu->apic_id == UNASSIGNED_APIC_ID) {
1649 int max_socket = (ms->smp.max_cpus - 1) /
1650 smp_threads / smp_cores / x86ms->smp_dies;
1653 * die-id was optional in QEMU 4.0 and older, so keep it optional
1654 * if there's only one die per socket.
1656 if (cpu->die_id < 0 && x86ms->smp_dies == 1) {
1660 if (cpu->socket_id < 0) {
1661 error_setg(errp, "CPU socket-id is not set");
1663 } else if (cpu->socket_id > max_socket) {
1664 error_setg(errp, "Invalid CPU socket-id: %u must be in range 0:%u",
1665 cpu->socket_id, max_socket);
1668 if (cpu->die_id < 0) {
1669 error_setg(errp, "CPU die-id is not set");
1671 } else if (cpu->die_id > x86ms->smp_dies - 1) {
1672 error_setg(errp, "Invalid CPU die-id: %u must be in range 0:%u",
1673 cpu->die_id, x86ms->smp_dies - 1);
1676 if (cpu->core_id < 0) {
1677 error_setg(errp, "CPU core-id is not set");
1679 } else if (cpu->core_id > (smp_cores - 1)) {
1680 error_setg(errp, "Invalid CPU core-id: %u must be in range 0:%u",
1681 cpu->core_id, smp_cores - 1);
1684 if (cpu->thread_id < 0) {
1685 error_setg(errp, "CPU thread-id is not set");
1687 } else if (cpu->thread_id > (smp_threads - 1)) {
1688 error_setg(errp, "Invalid CPU thread-id: %u must be in range 0:%u",
1689 cpu->thread_id, smp_threads - 1);
1693 topo.pkg_id = cpu->socket_id;
1694 topo.die_id = cpu->die_id;
1695 topo.core_id = cpu->core_id;
1696 topo.smt_id = cpu->thread_id;
1697 cpu->apic_id = apicid_from_topo_ids(x86ms->smp_dies, smp_cores,
1698 smp_threads, &topo);
1701 cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
1703 MachineState *ms = MACHINE(pcms);
1705 x86_topo_ids_from_apicid(cpu->apic_id, x86ms->smp_dies,
1706 smp_cores, smp_threads, &topo);
1708 "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
1709 " APIC ID %" PRIu32 ", valid index range 0:%d",
1710 topo.pkg_id, topo.die_id, topo.core_id, topo.smt_id,
1711 cpu->apic_id, ms->possible_cpus->len - 1);
1715 if (cpu_slot->cpu) {
1716 error_setg(errp, "CPU[%d] with APIC ID %" PRIu32 " exists",
1721 /* if 'address' properties socket-id/core-id/thread-id are not set, set them
1722 * so that machine_query_hotpluggable_cpus would show correct values
1724 /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
1725 * once -smp refactoring is complete and there will be CPU private
1726 * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
1727 x86_topo_ids_from_apicid(cpu->apic_id, x86ms->smp_dies,
1728 smp_cores, smp_threads, &topo);
1729 if (cpu->socket_id != -1 && cpu->socket_id != topo.pkg_id) {
1730 error_setg(errp, "property socket-id: %u doesn't match set apic-id:"
1731 " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, topo.pkg_id);
1734 cpu->socket_id = topo.pkg_id;
1736 if (cpu->die_id != -1 && cpu->die_id != topo.die_id) {
1737 error_setg(errp, "property die-id: %u doesn't match set apic-id:"
1738 " 0x%x (die-id: %u)", cpu->die_id, cpu->apic_id, topo.die_id);
1741 cpu->die_id = topo.die_id;
1743 if (cpu->core_id != -1 && cpu->core_id != topo.core_id) {
1744 error_setg(errp, "property core-id: %u doesn't match set apic-id:"
1745 " 0x%x (core-id: %u)", cpu->core_id, cpu->apic_id, topo.core_id);
1748 cpu->core_id = topo.core_id;
1750 if (cpu->thread_id != -1 && cpu->thread_id != topo.smt_id) {
1751 error_setg(errp, "property thread-id: %u doesn't match set apic-id:"
1752 " 0x%x (thread-id: %u)", cpu->thread_id, cpu->apic_id, topo.smt_id);
1755 cpu->thread_id = topo.smt_id;
1757 if (hyperv_feat_enabled(cpu, HYPERV_FEAT_VPINDEX) &&
1758 !kvm_hv_vpindex_settable()) {
1759 error_setg(errp, "kernel doesn't allow setting HyperV VP_INDEX");
1764 cs->cpu_index = idx;
1766 numa_cpu_pre_plug(cpu_slot, dev, errp);
1769 static void pc_virtio_pmem_pci_pre_plug(HotplugHandler *hotplug_dev,
1770 DeviceState *dev, Error **errp)
1772 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev);
1773 Error *local_err = NULL;
1775 if (!hotplug_dev2) {
1777 * Without a bus hotplug handler, we cannot control the plug/unplug
1778 * order. This should never be the case on x86, however better add
1781 error_setg(errp, "virtio-pmem-pci not supported on this bus.");
1785 * First, see if we can plug this memory device at all. If that
1786 * succeeds, branch of to the actual hotplug handler.
1788 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL,
1791 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err);
1793 error_propagate(errp, local_err);
1796 static void pc_virtio_pmem_pci_plug(HotplugHandler *hotplug_dev,
1797 DeviceState *dev, Error **errp)
1799 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev);
1800 Error *local_err = NULL;
1803 * Plug the memory device first and then branch off to the actual
1804 * hotplug handler. If that one fails, we can easily undo the memory
1807 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev));
1808 hotplug_handler_plug(hotplug_dev2, dev, &local_err);
1810 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev));
1812 error_propagate(errp, local_err);
1815 static void pc_virtio_pmem_pci_unplug_request(HotplugHandler *hotplug_dev,
1816 DeviceState *dev, Error **errp)
1818 /* We don't support virtio pmem hot unplug */
1819 error_setg(errp, "virtio pmem device unplug not supported.");
1822 static void pc_virtio_pmem_pci_unplug(HotplugHandler *hotplug_dev,
1823 DeviceState *dev, Error **errp)
1825 /* We don't support virtio pmem hot unplug */
1828 static void pc_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,
1829 DeviceState *dev, Error **errp)
1831 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1832 pc_memory_pre_plug(hotplug_dev, dev, errp);
1833 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1834 pc_cpu_pre_plug(hotplug_dev, dev, errp);
1835 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) {
1836 pc_virtio_pmem_pci_pre_plug(hotplug_dev, dev, errp);
1840 static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
1841 DeviceState *dev, Error **errp)
1843 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1844 pc_memory_plug(hotplug_dev, dev, errp);
1845 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1846 pc_cpu_plug(hotplug_dev, dev, errp);
1847 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) {
1848 pc_virtio_pmem_pci_plug(hotplug_dev, dev, errp);
1852 static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
1853 DeviceState *dev, Error **errp)
1855 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1856 pc_memory_unplug_request(hotplug_dev, dev, errp);
1857 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1858 pc_cpu_unplug_request_cb(hotplug_dev, dev, errp);
1859 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) {
1860 pc_virtio_pmem_pci_unplug_request(hotplug_dev, dev, errp);
1862 error_setg(errp, "acpi: device unplug request for not supported device"
1863 " type: %s", object_get_typename(OBJECT(dev)));
1867 static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev,
1868 DeviceState *dev, Error **errp)
1870 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1871 pc_memory_unplug(hotplug_dev, dev, errp);
1872 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1873 pc_cpu_unplug_cb(hotplug_dev, dev, errp);
1874 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) {
1875 pc_virtio_pmem_pci_unplug(hotplug_dev, dev, errp);
1877 error_setg(errp, "acpi: device unplug for not supported device"
1878 " type: %s", object_get_typename(OBJECT(dev)));
1882 static HotplugHandler *pc_get_hotplug_handler(MachineState *machine,
1885 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) ||
1886 object_dynamic_cast(OBJECT(dev), TYPE_CPU) ||
1887 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI)) {
1888 return HOTPLUG_HANDLER(machine);
1895 pc_machine_get_device_memory_region_size(Object *obj, Visitor *v,
1896 const char *name, void *opaque,
1899 MachineState *ms = MACHINE(obj);
1902 if (ms->device_memory) {
1903 value = memory_region_size(&ms->device_memory->mr);
1906 visit_type_int(v, name, &value, errp);
1909 static void pc_machine_get_vmport(Object *obj, Visitor *v, const char *name,
1910 void *opaque, Error **errp)
1912 PCMachineState *pcms = PC_MACHINE(obj);
1913 OnOffAuto vmport = pcms->vmport;
1915 visit_type_OnOffAuto(v, name, &vmport, errp);
1918 static void pc_machine_set_vmport(Object *obj, Visitor *v, const char *name,
1919 void *opaque, Error **errp)
1921 PCMachineState *pcms = PC_MACHINE(obj);
1923 visit_type_OnOffAuto(v, name, &pcms->vmport, errp);
1926 static bool pc_machine_get_smbus(Object *obj, Error **errp)
1928 PCMachineState *pcms = PC_MACHINE(obj);
1930 return pcms->smbus_enabled;
1933 static void pc_machine_set_smbus(Object *obj, bool value, Error **errp)
1935 PCMachineState *pcms = PC_MACHINE(obj);
1937 pcms->smbus_enabled = value;
1940 static bool pc_machine_get_sata(Object *obj, Error **errp)
1942 PCMachineState *pcms = PC_MACHINE(obj);
1944 return pcms->sata_enabled;
1947 static void pc_machine_set_sata(Object *obj, bool value, Error **errp)
1949 PCMachineState *pcms = PC_MACHINE(obj);
1951 pcms->sata_enabled = value;
1954 static bool pc_machine_get_pit(Object *obj, Error **errp)
1956 PCMachineState *pcms = PC_MACHINE(obj);
1958 return pcms->pit_enabled;
1961 static void pc_machine_set_pit(Object *obj, bool value, Error **errp)
1963 PCMachineState *pcms = PC_MACHINE(obj);
1965 pcms->pit_enabled = value;
1968 static void pc_machine_initfn(Object *obj)
1970 PCMachineState *pcms = PC_MACHINE(obj);
1972 #ifdef CONFIG_VMPORT
1973 pcms->vmport = ON_OFF_AUTO_AUTO;
1975 pcms->vmport = ON_OFF_AUTO_OFF;
1976 #endif /* CONFIG_VMPORT */
1977 /* acpi build is enabled by default if machine supports it */
1978 pcms->acpi_build_enabled = PC_MACHINE_GET_CLASS(pcms)->has_acpi_build;
1979 pcms->smbus_enabled = true;
1980 pcms->sata_enabled = true;
1981 pcms->pit_enabled = true;
1983 pc_system_flash_create(pcms);
1986 static void pc_machine_reset(MachineState *machine)
1991 qemu_devices_reset();
1993 /* Reset APIC after devices have been reset to cancel
1994 * any changes that qemu_devices_reset() might have done.
1999 if (cpu->apic_state) {
2000 device_reset(cpu->apic_state);
2005 static void pc_machine_wakeup(MachineState *machine)
2007 cpu_synchronize_all_states();
2008 pc_machine_reset(machine);
2009 cpu_synchronize_all_post_reset();
2012 static bool pc_hotplug_allowed(MachineState *ms, DeviceState *dev, Error **errp)
2014 X86IOMMUState *iommu = x86_iommu_get_default();
2015 IntelIOMMUState *intel_iommu;
2018 object_dynamic_cast((Object *)iommu, TYPE_INTEL_IOMMU_DEVICE) &&
2019 object_dynamic_cast((Object *)dev, "vfio-pci")) {
2020 intel_iommu = INTEL_IOMMU_DEVICE(iommu);
2021 if (!intel_iommu->caching_mode) {
2022 error_setg(errp, "Device assignment is not allowed without "
2023 "enabling caching-mode=on for Intel IOMMU.");
2031 static void pc_machine_class_init(ObjectClass *oc, void *data)
2033 MachineClass *mc = MACHINE_CLASS(oc);
2034 PCMachineClass *pcmc = PC_MACHINE_CLASS(oc);
2035 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
2037 pcmc->pci_enabled = true;
2038 pcmc->has_acpi_build = true;
2039 pcmc->rsdp_in_ram = true;
2040 pcmc->smbios_defaults = true;
2041 pcmc->smbios_uuid_encoded = true;
2042 pcmc->gigabyte_align = true;
2043 pcmc->has_reserved_memory = true;
2044 pcmc->kvmclock_enabled = true;
2045 pcmc->enforce_aligned_dimm = true;
2046 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
2047 * to be used at the moment, 32K should be enough for a while. */
2048 pcmc->acpi_data_size = 0x20000 + 0x8000;
2049 pcmc->linuxboot_dma_enabled = true;
2050 pcmc->pvh_enabled = true;
2051 assert(!mc->get_hotplug_handler);
2052 mc->get_hotplug_handler = pc_get_hotplug_handler;
2053 mc->hotplug_allowed = pc_hotplug_allowed;
2054 mc->cpu_index_to_instance_props = x86_cpu_index_to_props;
2055 mc->get_default_cpu_node_id = x86_get_default_cpu_node_id;
2056 mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids;
2057 mc->auto_enable_numa_with_memhp = true;
2058 mc->has_hotpluggable_cpus = true;
2059 mc->default_boot_order = "cad";
2060 mc->hot_add_cpu = pc_hot_add_cpu;
2061 mc->smp_parse = pc_smp_parse;
2062 mc->block_default_type = IF_IDE;
2064 mc->reset = pc_machine_reset;
2065 mc->wakeup = pc_machine_wakeup;
2066 hc->pre_plug = pc_machine_device_pre_plug_cb;
2067 hc->plug = pc_machine_device_plug_cb;
2068 hc->unplug_request = pc_machine_device_unplug_request_cb;
2069 hc->unplug = pc_machine_device_unplug_cb;
2070 mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
2071 mc->nvdimm_supported = true;
2072 mc->numa_mem_supported = true;
2074 object_class_property_add(oc, PC_MACHINE_DEVMEM_REGION_SIZE, "int",
2075 pc_machine_get_device_memory_region_size, NULL,
2076 NULL, NULL, &error_abort);
2078 object_class_property_add(oc, PC_MACHINE_VMPORT, "OnOffAuto",
2079 pc_machine_get_vmport, pc_machine_set_vmport,
2080 NULL, NULL, &error_abort);
2081 object_class_property_set_description(oc, PC_MACHINE_VMPORT,
2082 "Enable vmport (pc & q35)", &error_abort);
2084 object_class_property_add_bool(oc, PC_MACHINE_SMBUS,
2085 pc_machine_get_smbus, pc_machine_set_smbus, &error_abort);
2087 object_class_property_add_bool(oc, PC_MACHINE_SATA,
2088 pc_machine_get_sata, pc_machine_set_sata, &error_abort);
2090 object_class_property_add_bool(oc, PC_MACHINE_PIT,
2091 pc_machine_get_pit, pc_machine_set_pit, &error_abort);
2094 static const TypeInfo pc_machine_info = {
2095 .name = TYPE_PC_MACHINE,
2096 .parent = TYPE_X86_MACHINE,
2098 .instance_size = sizeof(PCMachineState),
2099 .instance_init = pc_machine_initfn,
2100 .class_size = sizeof(PCMachineClass),
2101 .class_init = pc_machine_class_init,
2102 .interfaces = (InterfaceInfo[]) {
2103 { TYPE_HOTPLUG_HANDLER },
2108 static void pc_machine_register_types(void)
2110 type_register_static(&pc_machine_info);
2113 type_init(pc_machine_register_types)