x86: move cpu hotplug from pc to x86
[qemu.git] / hw / i386 / pc.c
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 "hw/i386/vmport.h"
35 #include "sysemu/cpus.h"
36 #include "hw/block/fdc.h"
37 #include "hw/ide.h"
38 #include "hw/pci/pci.h"
39 #include "hw/pci/pci_bus.h"
40 #include "hw/nvram/fw_cfg.h"
41 #include "hw/timer/hpet.h"
42 #include "hw/firmware/smbios.h"
43 #include "hw/loader.h"
44 #include "elf.h"
45 #include "migration/vmstate.h"
46 #include "multiboot.h"
47 #include "hw/rtc/mc146818rtc.h"
48 #include "hw/intc/i8259.h"
49 #include "hw/dma/i8257.h"
50 #include "hw/timer/i8254.h"
51 #include "hw/input/i8042.h"
52 #include "hw/irq.h"
53 #include "hw/audio/pcspk.h"
54 #include "hw/pci/msi.h"
55 #include "hw/sysbus.h"
56 #include "sysemu/sysemu.h"
57 #include "sysemu/tcg.h"
58 #include "sysemu/numa.h"
59 #include "sysemu/kvm.h"
60 #include "sysemu/xen.h"
61 #include "sysemu/qtest.h"
62 #include "sysemu/reset.h"
63 #include "sysemu/runstate.h"
64 #include "kvm_i386.h"
65 #include "hw/xen/xen.h"
66 #include "hw/xen/start_info.h"
67 #include "ui/qemu-spice.h"
68 #include "exec/memory.h"
69 #include "exec/address-spaces.h"
70 #include "sysemu/arch_init.h"
71 #include "qemu/bitmap.h"
72 #include "qemu/config-file.h"
73 #include "qemu/error-report.h"
74 #include "qemu/option.h"
75 #include "qemu/cutils.h"
76 #include "hw/acpi/acpi.h"
77 #include "hw/acpi/cpu_hotplug.h"
78 #include "hw/boards.h"
79 #include "acpi-build.h"
80 #include "hw/mem/pc-dimm.h"
81 #include "hw/mem/nvdimm.h"
82 #include "qapi/error.h"
83 #include "qapi/qapi-visit-common.h"
84 #include "qapi/visitor.h"
85 #include "hw/core/cpu.h"
86 #include "hw/usb.h"
87 #include "hw/i386/intel_iommu.h"
88 #include "hw/net/ne2000-isa.h"
89 #include "standard-headers/asm-x86/bootparam.h"
90 #include "hw/virtio/virtio-pmem-pci.h"
91 #include "hw/virtio/virtio-mem-pci.h"
92 #include "hw/mem/memory-device.h"
93 #include "sysemu/replay.h"
94 #include "qapi/qmp/qerror.h"
95 #include "e820_memory_layout.h"
96 #include "fw_cfg.h"
97 #include "trace.h"
98 #include CONFIG_DEVICES
99
100 GlobalProperty pc_compat_5_1[] = {};
101 const size_t pc_compat_5_1_len = G_N_ELEMENTS(pc_compat_5_1);
102
103 GlobalProperty pc_compat_5_0[] = {
104 };
105 const size_t pc_compat_5_0_len = G_N_ELEMENTS(pc_compat_5_0);
106
107 GlobalProperty pc_compat_4_2[] = {
108 { "mch", "smbase-smram", "off" },
109 };
110 const size_t pc_compat_4_2_len = G_N_ELEMENTS(pc_compat_4_2);
111
112 GlobalProperty pc_compat_4_1[] = {};
113 const size_t pc_compat_4_1_len = G_N_ELEMENTS(pc_compat_4_1);
114
115 GlobalProperty pc_compat_4_0[] = {};
116 const size_t pc_compat_4_0_len = G_N_ELEMENTS(pc_compat_4_0);
117
118 GlobalProperty pc_compat_3_1[] = {
119 { "intel-iommu", "dma-drain", "off" },
120 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" },
121 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "off" },
122 { "Opteron_G4" "-" TYPE_X86_CPU, "npt", "off" },
123 { "Opteron_G4" "-" TYPE_X86_CPU, "nrip-save", "off" },
124 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "off" },
125 { "Opteron_G5" "-" TYPE_X86_CPU, "npt", "off" },
126 { "Opteron_G5" "-" TYPE_X86_CPU, "nrip-save", "off" },
127 { "EPYC" "-" TYPE_X86_CPU, "npt", "off" },
128 { "EPYC" "-" TYPE_X86_CPU, "nrip-save", "off" },
129 { "EPYC-IBPB" "-" TYPE_X86_CPU, "npt", "off" },
130 { "EPYC-IBPB" "-" TYPE_X86_CPU, "nrip-save", "off" },
131 { "Skylake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
132 { "Skylake-Client-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
133 { "Skylake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
134 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
135 { "Cascadelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
136 { "Icelake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
137 { "Icelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
138 { "Cascadelake-Server" "-" TYPE_X86_CPU, "stepping", "5" },
139 { TYPE_X86_CPU, "x-intel-pt-auto-level", "off" },
140 };
141 const size_t pc_compat_3_1_len = G_N_ELEMENTS(pc_compat_3_1);
142
143 GlobalProperty pc_compat_3_0[] = {
144 { TYPE_X86_CPU, "x-hv-synic-kvm-only", "on" },
145 { "Skylake-Server" "-" TYPE_X86_CPU, "pku", "off" },
146 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "pku", "off" },
147 };
148 const size_t pc_compat_3_0_len = G_N_ELEMENTS(pc_compat_3_0);
149
150 GlobalProperty pc_compat_2_12[] = {
151 { TYPE_X86_CPU, "legacy-cache", "on" },
152 { TYPE_X86_CPU, "topoext", "off" },
153 { "EPYC-" TYPE_X86_CPU, "xlevel", "0x8000000a" },
154 { "EPYC-IBPB-" TYPE_X86_CPU, "xlevel", "0x8000000a" },
155 };
156 const size_t pc_compat_2_12_len = G_N_ELEMENTS(pc_compat_2_12);
157
158 GlobalProperty pc_compat_2_11[] = {
159 { TYPE_X86_CPU, "x-migrate-smi-count", "off" },
160 { "Skylake-Server" "-" TYPE_X86_CPU, "clflushopt", "off" },
161 };
162 const size_t pc_compat_2_11_len = G_N_ELEMENTS(pc_compat_2_11);
163
164 GlobalProperty pc_compat_2_10[] = {
165 { TYPE_X86_CPU, "x-hv-max-vps", "0x40" },
166 { "i440FX-pcihost", "x-pci-hole64-fix", "off" },
167 { "q35-pcihost", "x-pci-hole64-fix", "off" },
168 };
169 const size_t pc_compat_2_10_len = G_N_ELEMENTS(pc_compat_2_10);
170
171 GlobalProperty pc_compat_2_9[] = {
172 { "mch", "extended-tseg-mbytes", "0" },
173 };
174 const size_t pc_compat_2_9_len = G_N_ELEMENTS(pc_compat_2_9);
175
176 GlobalProperty pc_compat_2_8[] = {
177 { TYPE_X86_CPU, "tcg-cpuid", "off" },
178 { "kvmclock", "x-mach-use-reliable-get-clock", "off" },
179 { "ICH9-LPC", "x-smi-broadcast", "off" },
180 { TYPE_X86_CPU, "vmware-cpuid-freq", "off" },
181 { "Haswell-" TYPE_X86_CPU, "stepping", "1" },
182 };
183 const size_t pc_compat_2_8_len = G_N_ELEMENTS(pc_compat_2_8);
184
185 GlobalProperty pc_compat_2_7[] = {
186 { TYPE_X86_CPU, "l3-cache", "off" },
187 { TYPE_X86_CPU, "full-cpuid-auto-level", "off" },
188 { "Opteron_G3" "-" TYPE_X86_CPU, "family", "15" },
189 { "Opteron_G3" "-" TYPE_X86_CPU, "model", "6" },
190 { "Opteron_G3" "-" TYPE_X86_CPU, "stepping", "1" },
191 { "isa-pcspk", "migrate", "off" },
192 };
193 const size_t pc_compat_2_7_len = G_N_ELEMENTS(pc_compat_2_7);
194
195 GlobalProperty pc_compat_2_6[] = {
196 { TYPE_X86_CPU, "cpuid-0xb", "off" },
197 { "vmxnet3", "romfile", "" },
198 { TYPE_X86_CPU, "fill-mtrr-mask", "off" },
199 { "apic-common", "legacy-instance-id", "on", }
200 };
201 const size_t pc_compat_2_6_len = G_N_ELEMENTS(pc_compat_2_6);
202
203 GlobalProperty pc_compat_2_5[] = {};
204 const size_t pc_compat_2_5_len = G_N_ELEMENTS(pc_compat_2_5);
205
206 GlobalProperty pc_compat_2_4[] = {
207 PC_CPU_MODEL_IDS("2.4.0")
208 { "Haswell-" TYPE_X86_CPU, "abm", "off" },
209 { "Haswell-noTSX-" TYPE_X86_CPU, "abm", "off" },
210 { "Broadwell-" TYPE_X86_CPU, "abm", "off" },
211 { "Broadwell-noTSX-" TYPE_X86_CPU, "abm", "off" },
212 { "host" "-" TYPE_X86_CPU, "host-cache-info", "on" },
213 { TYPE_X86_CPU, "check", "off" },
214 { "qemu64" "-" TYPE_X86_CPU, "sse4a", "on" },
215 { "qemu64" "-" TYPE_X86_CPU, "abm", "on" },
216 { "qemu64" "-" TYPE_X86_CPU, "popcnt", "on" },
217 { "qemu32" "-" TYPE_X86_CPU, "popcnt", "on" },
218 { "Opteron_G2" "-" TYPE_X86_CPU, "rdtscp", "on" },
219 { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "on" },
220 { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "on" },
221 { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "on", }
222 };
223 const size_t pc_compat_2_4_len = G_N_ELEMENTS(pc_compat_2_4);
224
225 GlobalProperty pc_compat_2_3[] = {
226 PC_CPU_MODEL_IDS("2.3.0")
227 { TYPE_X86_CPU, "arat", "off" },
228 { "qemu64" "-" TYPE_X86_CPU, "min-level", "4" },
229 { "kvm64" "-" TYPE_X86_CPU, "min-level", "5" },
230 { "pentium3" "-" TYPE_X86_CPU, "min-level", "2" },
231 { "n270" "-" TYPE_X86_CPU, "min-level", "5" },
232 { "Conroe" "-" TYPE_X86_CPU, "min-level", "4" },
233 { "Penryn" "-" TYPE_X86_CPU, "min-level", "4" },
234 { "Nehalem" "-" TYPE_X86_CPU, "min-level", "4" },
235 { "n270" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
236 { "Penryn" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
237 { "Conroe" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
238 { "Nehalem" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
239 { "Westmere" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
240 { "SandyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
241 { "IvyBridge" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
242 { "Haswell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
243 { "Haswell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
244 { "Broadwell" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
245 { "Broadwell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", "0x8000000a" },
246 { TYPE_X86_CPU, "kvm-no-smi-migration", "on" },
247 };
248 const size_t pc_compat_2_3_len = G_N_ELEMENTS(pc_compat_2_3);
249
250 GlobalProperty pc_compat_2_2[] = {
251 PC_CPU_MODEL_IDS("2.2.0")
252 { "kvm64" "-" TYPE_X86_CPU, "vme", "off" },
253 { "kvm32" "-" TYPE_X86_CPU, "vme", "off" },
254 { "Conroe" "-" TYPE_X86_CPU, "vme", "off" },
255 { "Penryn" "-" TYPE_X86_CPU, "vme", "off" },
256 { "Nehalem" "-" TYPE_X86_CPU, "vme", "off" },
257 { "Westmere" "-" TYPE_X86_CPU, "vme", "off" },
258 { "SandyBridge" "-" TYPE_X86_CPU, "vme", "off" },
259 { "Haswell" "-" TYPE_X86_CPU, "vme", "off" },
260 { "Broadwell" "-" TYPE_X86_CPU, "vme", "off" },
261 { "Opteron_G1" "-" TYPE_X86_CPU, "vme", "off" },
262 { "Opteron_G2" "-" TYPE_X86_CPU, "vme", "off" },
263 { "Opteron_G3" "-" TYPE_X86_CPU, "vme", "off" },
264 { "Opteron_G4" "-" TYPE_X86_CPU, "vme", "off" },
265 { "Opteron_G5" "-" TYPE_X86_CPU, "vme", "off" },
266 { "Haswell" "-" TYPE_X86_CPU, "f16c", "off" },
267 { "Haswell" "-" TYPE_X86_CPU, "rdrand", "off" },
268 { "Broadwell" "-" TYPE_X86_CPU, "f16c", "off" },
269 { "Broadwell" "-" TYPE_X86_CPU, "rdrand", "off" },
270 };
271 const size_t pc_compat_2_2_len = G_N_ELEMENTS(pc_compat_2_2);
272
273 GlobalProperty pc_compat_2_1[] = {
274 PC_CPU_MODEL_IDS("2.1.0")
275 { "coreduo" "-" TYPE_X86_CPU, "vmx", "on" },
276 { "core2duo" "-" TYPE_X86_CPU, "vmx", "on" },
277 };
278 const size_t pc_compat_2_1_len = G_N_ELEMENTS(pc_compat_2_1);
279
280 GlobalProperty pc_compat_2_0[] = {
281 PC_CPU_MODEL_IDS("2.0.0")
282 { "virtio-scsi-pci", "any_layout", "off" },
283 { "PIIX4_PM", "memory-hotplug-support", "off" },
284 { "apic", "version", "0x11" },
285 { "nec-usb-xhci", "superspeed-ports-first", "off" },
286 { "nec-usb-xhci", "force-pcie-endcap", "on" },
287 { "pci-serial", "prog_if", "0" },
288 { "pci-serial-2x", "prog_if", "0" },
289 { "pci-serial-4x", "prog_if", "0" },
290 { "virtio-net-pci", "guest_announce", "off" },
291 { "ICH9-LPC", "memory-hotplug-support", "off" },
292 { "xio3130-downstream", COMPAT_PROP_PCP, "off" },
293 { "ioh3420", COMPAT_PROP_PCP, "off" },
294 };
295 const size_t pc_compat_2_0_len = G_N_ELEMENTS(pc_compat_2_0);
296
297 GlobalProperty pc_compat_1_7[] = {
298 PC_CPU_MODEL_IDS("1.7.0")
299 { TYPE_USB_DEVICE, "msos-desc", "no" },
300 { "PIIX4_PM", "acpi-pci-hotplug-with-bridge-support", "off" },
301 { "hpet", HPET_INTCAP, "4" },
302 };
303 const size_t pc_compat_1_7_len = G_N_ELEMENTS(pc_compat_1_7);
304
305 GlobalProperty pc_compat_1_6[] = {
306 PC_CPU_MODEL_IDS("1.6.0")
307 { "e1000", "mitigation", "off" },
308 { "qemu64-" TYPE_X86_CPU, "model", "2" },
309 { "qemu32-" TYPE_X86_CPU, "model", "3" },
310 { "i440FX-pcihost", "short_root_bus", "1" },
311 { "q35-pcihost", "short_root_bus", "1" },
312 };
313 const size_t pc_compat_1_6_len = G_N_ELEMENTS(pc_compat_1_6);
314
315 GlobalProperty pc_compat_1_5[] = {
316 PC_CPU_MODEL_IDS("1.5.0")
317 { "Conroe-" TYPE_X86_CPU, "model", "2" },
318 { "Conroe-" TYPE_X86_CPU, "min-level", "2" },
319 { "Penryn-" TYPE_X86_CPU, "model", "2" },
320 { "Penryn-" TYPE_X86_CPU, "min-level", "2" },
321 { "Nehalem-" TYPE_X86_CPU, "model", "2" },
322 { "Nehalem-" TYPE_X86_CPU, "min-level", "2" },
323 { "virtio-net-pci", "any_layout", "off" },
324 { TYPE_X86_CPU, "pmu", "on" },
325 { "i440FX-pcihost", "short_root_bus", "0" },
326 { "q35-pcihost", "short_root_bus", "0" },
327 };
328 const size_t pc_compat_1_5_len = G_N_ELEMENTS(pc_compat_1_5);
329
330 GlobalProperty pc_compat_1_4[] = {
331 PC_CPU_MODEL_IDS("1.4.0")
332 { "scsi-hd", "discard_granularity", "0" },
333 { "scsi-cd", "discard_granularity", "0" },
334 { "scsi-disk", "discard_granularity", "0" },
335 { "ide-hd", "discard_granularity", "0" },
336 { "ide-cd", "discard_granularity", "0" },
337 { "ide-drive", "discard_granularity", "0" },
338 { "virtio-blk-pci", "discard_granularity", "0" },
339 /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string: */
340 { "virtio-serial-pci", "vectors", "0xFFFFFFFF" },
341 { "virtio-net-pci", "ctrl_guest_offloads", "off" },
342 { "e1000", "romfile", "pxe-e1000.rom" },
343 { "ne2k_pci", "romfile", "pxe-ne2k_pci.rom" },
344 { "pcnet", "romfile", "pxe-pcnet.rom" },
345 { "rtl8139", "romfile", "pxe-rtl8139.rom" },
346 { "virtio-net-pci", "romfile", "pxe-virtio.rom" },
347 { "486-" TYPE_X86_CPU, "model", "0" },
348 { "n270" "-" TYPE_X86_CPU, "movbe", "off" },
349 { "Westmere" "-" TYPE_X86_CPU, "pclmulqdq", "off" },
350 };
351 const size_t pc_compat_1_4_len = G_N_ELEMENTS(pc_compat_1_4);
352
353 GSIState *pc_gsi_create(qemu_irq **irqs, bool pci_enabled)
354 {
355 GSIState *s;
356
357 s = g_new0(GSIState, 1);
358 if (kvm_ioapic_in_kernel()) {
359 kvm_pc_setup_irq_routing(pci_enabled);
360 }
361 *irqs = qemu_allocate_irqs(gsi_handler, s, GSI_NUM_PINS);
362
363 return s;
364 }
365
366 static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
367 unsigned size)
368 {
369 }
370
371 static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
372 {
373 return 0xffffffffffffffffULL;
374 }
375
376 /* MSDOS compatibility mode FPU exception support */
377 static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
378 unsigned size)
379 {
380 if (tcg_enabled()) {
381 cpu_set_ignne();
382 }
383 }
384
385 static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
386 {
387 return 0xffffffffffffffffULL;
388 }
389
390 /* PC cmos mappings */
391
392 #define REG_EQUIPMENT_BYTE 0x14
393
394 static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
395 int16_t cylinders, int8_t heads, int8_t sectors)
396 {
397 rtc_set_memory(s, type_ofs, 47);
398 rtc_set_memory(s, info_ofs, cylinders);
399 rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
400 rtc_set_memory(s, info_ofs + 2, heads);
401 rtc_set_memory(s, info_ofs + 3, 0xff);
402 rtc_set_memory(s, info_ofs + 4, 0xff);
403 rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
404 rtc_set_memory(s, info_ofs + 6, cylinders);
405 rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
406 rtc_set_memory(s, info_ofs + 8, sectors);
407 }
408
409 /* convert boot_device letter to something recognizable by the bios */
410 static int boot_device2nibble(char boot_device)
411 {
412 switch(boot_device) {
413 case 'a':
414 case 'b':
415 return 0x01; /* floppy boot */
416 case 'c':
417 return 0x02; /* hard drive boot */
418 case 'd':
419 return 0x03; /* CD-ROM boot */
420 case 'n':
421 return 0x04; /* Network boot */
422 }
423 return 0;
424 }
425
426 static void set_boot_dev(ISADevice *s, const char *boot_device, Error **errp)
427 {
428 #define PC_MAX_BOOT_DEVICES 3
429 int nbds, bds[3] = { 0, };
430 int i;
431
432 nbds = strlen(boot_device);
433 if (nbds > PC_MAX_BOOT_DEVICES) {
434 error_setg(errp, "Too many boot devices for PC");
435 return;
436 }
437 for (i = 0; i < nbds; i++) {
438 bds[i] = boot_device2nibble(boot_device[i]);
439 if (bds[i] == 0) {
440 error_setg(errp, "Invalid boot device for PC: '%c'",
441 boot_device[i]);
442 return;
443 }
444 }
445 rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
446 rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
447 }
448
449 static void pc_boot_set(void *opaque, const char *boot_device, Error **errp)
450 {
451 set_boot_dev(opaque, boot_device, errp);
452 }
453
454 static void pc_cmos_init_floppy(ISADevice *rtc_state, ISADevice *floppy)
455 {
456 int val, nb, i;
457 FloppyDriveType fd_type[2] = { FLOPPY_DRIVE_TYPE_NONE,
458 FLOPPY_DRIVE_TYPE_NONE };
459
460 /* floppy type */
461 if (floppy) {
462 for (i = 0; i < 2; i++) {
463 fd_type[i] = isa_fdc_get_drive_type(floppy, i);
464 }
465 }
466 val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
467 cmos_get_fd_drive_type(fd_type[1]);
468 rtc_set_memory(rtc_state, 0x10, val);
469
470 val = rtc_get_memory(rtc_state, REG_EQUIPMENT_BYTE);
471 nb = 0;
472 if (fd_type[0] != FLOPPY_DRIVE_TYPE_NONE) {
473 nb++;
474 }
475 if (fd_type[1] != FLOPPY_DRIVE_TYPE_NONE) {
476 nb++;
477 }
478 switch (nb) {
479 case 0:
480 break;
481 case 1:
482 val |= 0x01; /* 1 drive, ready for boot */
483 break;
484 case 2:
485 val |= 0x41; /* 2 drives, ready for boot */
486 break;
487 }
488 rtc_set_memory(rtc_state, REG_EQUIPMENT_BYTE, val);
489 }
490
491 typedef struct pc_cmos_init_late_arg {
492 ISADevice *rtc_state;
493 BusState *idebus[2];
494 } pc_cmos_init_late_arg;
495
496 typedef struct check_fdc_state {
497 ISADevice *floppy;
498 bool multiple;
499 } CheckFdcState;
500
501 static int check_fdc(Object *obj, void *opaque)
502 {
503 CheckFdcState *state = opaque;
504 Object *fdc;
505 uint32_t iobase;
506 Error *local_err = NULL;
507
508 fdc = object_dynamic_cast(obj, TYPE_ISA_FDC);
509 if (!fdc) {
510 return 0;
511 }
512
513 iobase = object_property_get_uint(obj, "iobase", &local_err);
514 if (local_err || iobase != 0x3f0) {
515 error_free(local_err);
516 return 0;
517 }
518
519 if (state->floppy) {
520 state->multiple = true;
521 } else {
522 state->floppy = ISA_DEVICE(obj);
523 }
524 return 0;
525 }
526
527 static const char * const fdc_container_path[] = {
528 "/unattached", "/peripheral", "/peripheral-anon"
529 };
530
531 /*
532 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers
533 * and ACPI objects.
534 */
535 ISADevice *pc_find_fdc0(void)
536 {
537 int i;
538 Object *container;
539 CheckFdcState state = { 0 };
540
541 for (i = 0; i < ARRAY_SIZE(fdc_container_path); i++) {
542 container = container_get(qdev_get_machine(), fdc_container_path[i]);
543 object_child_foreach(container, check_fdc, &state);
544 }
545
546 if (state.multiple) {
547 warn_report("multiple floppy disk controllers with "
548 "iobase=0x3f0 have been found");
549 error_printf("the one being picked for CMOS setup might not reflect "
550 "your intent");
551 }
552
553 return state.floppy;
554 }
555
556 static void pc_cmos_init_late(void *opaque)
557 {
558 pc_cmos_init_late_arg *arg = opaque;
559 ISADevice *s = arg->rtc_state;
560 int16_t cylinders;
561 int8_t heads, sectors;
562 int val;
563 int i, trans;
564
565 val = 0;
566 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 0,
567 &cylinders, &heads, &sectors) >= 0) {
568 cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
569 val |= 0xf0;
570 }
571 if (arg->idebus[0] && ide_get_geometry(arg->idebus[0], 1,
572 &cylinders, &heads, &sectors) >= 0) {
573 cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
574 val |= 0x0f;
575 }
576 rtc_set_memory(s, 0x12, val);
577
578 val = 0;
579 for (i = 0; i < 4; i++) {
580 /* NOTE: ide_get_geometry() returns the physical
581 geometry. It is always such that: 1 <= sects <= 63, 1
582 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
583 geometry can be different if a translation is done. */
584 if (arg->idebus[i / 2] &&
585 ide_get_geometry(arg->idebus[i / 2], i % 2,
586 &cylinders, &heads, &sectors) >= 0) {
587 trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1;
588 assert((trans & ~3) == 0);
589 val |= trans << (i * 2);
590 }
591 }
592 rtc_set_memory(s, 0x39, val);
593
594 pc_cmos_init_floppy(s, pc_find_fdc0());
595
596 qemu_unregister_reset(pc_cmos_init_late, opaque);
597 }
598
599 void pc_cmos_init(PCMachineState *pcms,
600 BusState *idebus0, BusState *idebus1,
601 ISADevice *s)
602 {
603 int val;
604 static pc_cmos_init_late_arg arg;
605 X86MachineState *x86ms = X86_MACHINE(pcms);
606
607 /* various important CMOS locations needed by PC/Bochs bios */
608
609 /* memory size */
610 /* base memory (first MiB) */
611 val = MIN(x86ms->below_4g_mem_size / KiB, 640);
612 rtc_set_memory(s, 0x15, val);
613 rtc_set_memory(s, 0x16, val >> 8);
614 /* extended memory (next 64MiB) */
615 if (x86ms->below_4g_mem_size > 1 * MiB) {
616 val = (x86ms->below_4g_mem_size - 1 * MiB) / KiB;
617 } else {
618 val = 0;
619 }
620 if (val > 65535)
621 val = 65535;
622 rtc_set_memory(s, 0x17, val);
623 rtc_set_memory(s, 0x18, val >> 8);
624 rtc_set_memory(s, 0x30, val);
625 rtc_set_memory(s, 0x31, val >> 8);
626 /* memory between 16MiB and 4GiB */
627 if (x86ms->below_4g_mem_size > 16 * MiB) {
628 val = (x86ms->below_4g_mem_size - 16 * MiB) / (64 * KiB);
629 } else {
630 val = 0;
631 }
632 if (val > 65535)
633 val = 65535;
634 rtc_set_memory(s, 0x34, val);
635 rtc_set_memory(s, 0x35, val >> 8);
636 /* memory above 4GiB */
637 val = x86ms->above_4g_mem_size / 65536;
638 rtc_set_memory(s, 0x5b, val);
639 rtc_set_memory(s, 0x5c, val >> 8);
640 rtc_set_memory(s, 0x5d, val >> 16);
641
642 object_property_add_link(OBJECT(pcms), "rtc_state",
643 TYPE_ISA_DEVICE,
644 (Object **)&x86ms->rtc,
645 object_property_allow_set_link,
646 OBJ_PROP_LINK_STRONG);
647 object_property_set_link(OBJECT(pcms), "rtc_state", OBJECT(s),
648 &error_abort);
649
650 set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal);
651
652 val = 0;
653 val |= 0x02; /* FPU is there */
654 val |= 0x04; /* PS/2 mouse installed */
655 rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
656
657 /* hard drives and FDC */
658 arg.rtc_state = s;
659 arg.idebus[0] = idebus0;
660 arg.idebus[1] = idebus1;
661 qemu_register_reset(pc_cmos_init_late, &arg);
662 }
663
664 static void handle_a20_line_change(void *opaque, int irq, int level)
665 {
666 X86CPU *cpu = opaque;
667
668 /* XXX: send to all CPUs ? */
669 /* XXX: add logic to handle multiple A20 line sources */
670 x86_cpu_set_a20(cpu, level);
671 }
672
673 #define NE2000_NB_MAX 6
674
675 static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
676 0x280, 0x380 };
677 static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
678
679 void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
680 {
681 static int nb_ne2k = 0;
682
683 if (nb_ne2k == NE2000_NB_MAX)
684 return;
685 isa_ne2000_init(bus, ne2000_io[nb_ne2k],
686 ne2000_irq[nb_ne2k], nd);
687 nb_ne2k++;
688 }
689
690 void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
691 {
692 X86CPU *cpu = opaque;
693
694 if (level) {
695 cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI);
696 }
697 }
698
699 /*
700 * This function is very similar to smp_parse()
701 * in hw/core/machine.c but includes CPU die support.
702 */
703 void pc_smp_parse(MachineState *ms, QemuOpts *opts)
704 {
705 X86MachineState *x86ms = X86_MACHINE(ms);
706
707 if (opts) {
708 unsigned cpus = qemu_opt_get_number(opts, "cpus", 0);
709 unsigned sockets = qemu_opt_get_number(opts, "sockets", 0);
710 unsigned dies = qemu_opt_get_number(opts, "dies", 1);
711 unsigned cores = qemu_opt_get_number(opts, "cores", 0);
712 unsigned threads = qemu_opt_get_number(opts, "threads", 0);
713
714 /* compute missing values, prefer sockets over cores over threads */
715 if (cpus == 0 || sockets == 0) {
716 cores = cores > 0 ? cores : 1;
717 threads = threads > 0 ? threads : 1;
718 if (cpus == 0) {
719 sockets = sockets > 0 ? sockets : 1;
720 cpus = cores * threads * dies * sockets;
721 } else {
722 ms->smp.max_cpus =
723 qemu_opt_get_number(opts, "maxcpus", cpus);
724 sockets = ms->smp.max_cpus / (cores * threads * dies);
725 }
726 } else if (cores == 0) {
727 threads = threads > 0 ? threads : 1;
728 cores = cpus / (sockets * dies * threads);
729 cores = cores > 0 ? cores : 1;
730 } else if (threads == 0) {
731 threads = cpus / (cores * dies * sockets);
732 threads = threads > 0 ? threads : 1;
733 } else if (sockets * dies * cores * threads < cpus) {
734 error_report("cpu topology: "
735 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) < "
736 "smp_cpus (%u)",
737 sockets, dies, cores, threads, cpus);
738 exit(1);
739 }
740
741 ms->smp.max_cpus =
742 qemu_opt_get_number(opts, "maxcpus", cpus);
743
744 if (ms->smp.max_cpus < cpus) {
745 error_report("maxcpus must be equal to or greater than smp");
746 exit(1);
747 }
748
749 if (sockets * dies * cores * threads > ms->smp.max_cpus) {
750 error_report("cpu topology: "
751 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) > "
752 "maxcpus (%u)",
753 sockets, dies, cores, threads,
754 ms->smp.max_cpus);
755 exit(1);
756 }
757
758 if (sockets * dies * cores * threads != ms->smp.max_cpus) {
759 warn_report("Invalid CPU topology deprecated: "
760 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) "
761 "!= maxcpus (%u)",
762 sockets, dies, cores, threads,
763 ms->smp.max_cpus);
764 }
765
766 ms->smp.cpus = cpus;
767 ms->smp.cores = cores;
768 ms->smp.threads = threads;
769 ms->smp.sockets = sockets;
770 x86ms->smp_dies = dies;
771 }
772
773 if (ms->smp.cpus > 1) {
774 Error *blocker = NULL;
775 error_setg(&blocker, QERR_REPLAY_NOT_SUPPORTED, "smp");
776 replay_add_blocker(blocker);
777 }
778 }
779
780 void pc_hot_add_cpu(MachineState *ms, const int64_t id, Error **errp)
781 {
782 X86MachineState *x86ms = X86_MACHINE(ms);
783 int64_t apic_id = x86_cpu_apic_id_from_index(x86ms, id);
784 Error *local_err = NULL;
785
786 if (id < 0) {
787 error_setg(errp, "Invalid CPU id: %" PRIi64, id);
788 return;
789 }
790
791 if (apic_id >= ACPI_CPU_HOTPLUG_ID_LIMIT) {
792 error_setg(errp, "Unable to add CPU: %" PRIi64
793 ", resulting APIC ID (%" PRIi64 ") is too large",
794 id, apic_id);
795 return;
796 }
797
798
799 x86_cpu_new(X86_MACHINE(ms), apic_id, &local_err);
800 if (local_err) {
801 error_propagate(errp, local_err);
802 return;
803 }
804 }
805
806 static
807 void pc_machine_done(Notifier *notifier, void *data)
808 {
809 PCMachineState *pcms = container_of(notifier,
810 PCMachineState, machine_done);
811 X86MachineState *x86ms = X86_MACHINE(pcms);
812 PCIBus *bus = pcms->bus;
813
814 /* set the number of CPUs */
815 x86_rtc_set_cpus_count(x86ms->rtc, x86ms->boot_cpus);
816
817 if (bus) {
818 int extra_hosts = 0;
819
820 QLIST_FOREACH(bus, &bus->child, sibling) {
821 /* look for expander root buses */
822 if (pci_bus_is_root(bus)) {
823 extra_hosts++;
824 }
825 }
826 if (extra_hosts && x86ms->fw_cfg) {
827 uint64_t *val = g_malloc(sizeof(*val));
828 *val = cpu_to_le64(extra_hosts);
829 fw_cfg_add_file(x86ms->fw_cfg,
830 "etc/extra-pci-roots", val, sizeof(*val));
831 }
832 }
833
834 acpi_setup();
835 if (x86ms->fw_cfg) {
836 fw_cfg_build_smbios(MACHINE(pcms), x86ms->fw_cfg);
837 fw_cfg_build_feature_control(MACHINE(pcms), x86ms->fw_cfg);
838 /* update FW_CFG_NB_CPUS to account for -device added CPUs */
839 fw_cfg_modify_i16(x86ms->fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
840 }
841
842 if (x86ms->apic_id_limit > 255 && !xen_enabled()) {
843 IntelIOMMUState *iommu = INTEL_IOMMU_DEVICE(x86_iommu_get_default());
844
845 if (!iommu || !x86_iommu_ir_supported(X86_IOMMU_DEVICE(iommu)) ||
846 iommu->intr_eim != ON_OFF_AUTO_ON) {
847 error_report("current -smp configuration requires "
848 "Extended Interrupt Mode enabled. "
849 "You can add an IOMMU using: "
850 "-device intel-iommu,intremap=on,eim=on");
851 exit(EXIT_FAILURE);
852 }
853 }
854 }
855
856 void pc_guest_info_init(PCMachineState *pcms)
857 {
858 int i;
859 MachineState *ms = MACHINE(pcms);
860 X86MachineState *x86ms = X86_MACHINE(pcms);
861
862 x86ms->apic_xrupt_override = kvm_allows_irq0_override();
863 pcms->numa_nodes = ms->numa_state->num_nodes;
864 pcms->node_mem = g_malloc0(pcms->numa_nodes *
865 sizeof *pcms->node_mem);
866 for (i = 0; i < ms->numa_state->num_nodes; i++) {
867 pcms->node_mem[i] = ms->numa_state->nodes[i].node_mem;
868 }
869
870 pcms->machine_done.notify = pc_machine_done;
871 qemu_add_machine_init_done_notifier(&pcms->machine_done);
872 }
873
874 /* setup pci memory address space mapping into system address space */
875 void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory,
876 MemoryRegion *pci_address_space)
877 {
878 /* Set to lower priority than RAM */
879 memory_region_add_subregion_overlap(system_memory, 0x0,
880 pci_address_space, -1);
881 }
882
883 void xen_load_linux(PCMachineState *pcms)
884 {
885 int i;
886 FWCfgState *fw_cfg;
887 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
888 X86MachineState *x86ms = X86_MACHINE(pcms);
889
890 assert(MACHINE(pcms)->kernel_filename != NULL);
891
892 fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE);
893 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, x86ms->boot_cpus);
894 rom_set_fw(fw_cfg);
895
896 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size,
897 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled);
898 for (i = 0; i < nb_option_roms; i++) {
899 assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
900 !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
901 !strcmp(option_rom[i].name, "pvh.bin") ||
902 !strcmp(option_rom[i].name, "multiboot.bin"));
903 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
904 }
905 x86ms->fw_cfg = fw_cfg;
906 }
907
908 void pc_memory_init(PCMachineState *pcms,
909 MemoryRegion *system_memory,
910 MemoryRegion *rom_memory,
911 MemoryRegion **ram_memory)
912 {
913 int linux_boot, i;
914 MemoryRegion *option_rom_mr;
915 MemoryRegion *ram_below_4g, *ram_above_4g;
916 FWCfgState *fw_cfg;
917 MachineState *machine = MACHINE(pcms);
918 MachineClass *mc = MACHINE_GET_CLASS(machine);
919 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
920 X86MachineState *x86ms = X86_MACHINE(pcms);
921
922 assert(machine->ram_size == x86ms->below_4g_mem_size +
923 x86ms->above_4g_mem_size);
924
925 linux_boot = (machine->kernel_filename != NULL);
926
927 /*
928 * Split single memory region and use aliases to address portions of it,
929 * done for backwards compatibility with older qemus.
930 */
931 *ram_memory = machine->ram;
932 ram_below_4g = g_malloc(sizeof(*ram_below_4g));
933 memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", machine->ram,
934 0, x86ms->below_4g_mem_size);
935 memory_region_add_subregion(system_memory, 0, ram_below_4g);
936 e820_add_entry(0, x86ms->below_4g_mem_size, E820_RAM);
937 if (x86ms->above_4g_mem_size > 0) {
938 ram_above_4g = g_malloc(sizeof(*ram_above_4g));
939 memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g",
940 machine->ram,
941 x86ms->below_4g_mem_size,
942 x86ms->above_4g_mem_size);
943 memory_region_add_subregion(system_memory, 0x100000000ULL,
944 ram_above_4g);
945 e820_add_entry(0x100000000ULL, x86ms->above_4g_mem_size, E820_RAM);
946 }
947
948 if (!pcmc->has_reserved_memory &&
949 (machine->ram_slots ||
950 (machine->maxram_size > machine->ram_size))) {
951
952 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s",
953 mc->name);
954 exit(EXIT_FAILURE);
955 }
956
957 /* always allocate the device memory information */
958 machine->device_memory = g_malloc0(sizeof(*machine->device_memory));
959
960 /* initialize device memory address space */
961 if (pcmc->has_reserved_memory &&
962 (machine->ram_size < machine->maxram_size)) {
963 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
964
965 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
966 error_report("unsupported amount of memory slots: %"PRIu64,
967 machine->ram_slots);
968 exit(EXIT_FAILURE);
969 }
970
971 if (QEMU_ALIGN_UP(machine->maxram_size,
972 TARGET_PAGE_SIZE) != machine->maxram_size) {
973 error_report("maximum memory size must by aligned to multiple of "
974 "%d bytes", TARGET_PAGE_SIZE);
975 exit(EXIT_FAILURE);
976 }
977
978 machine->device_memory->base =
979 ROUND_UP(0x100000000ULL + x86ms->above_4g_mem_size, 1 * GiB);
980
981 if (pcmc->enforce_aligned_dimm) {
982 /* size device region assuming 1G page max alignment per slot */
983 device_mem_size += (1 * GiB) * machine->ram_slots;
984 }
985
986 if ((machine->device_memory->base + device_mem_size) <
987 device_mem_size) {
988 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT,
989 machine->maxram_size);
990 exit(EXIT_FAILURE);
991 }
992
993 memory_region_init(&machine->device_memory->mr, OBJECT(pcms),
994 "device-memory", device_mem_size);
995 memory_region_add_subregion(system_memory, machine->device_memory->base,
996 &machine->device_memory->mr);
997 }
998
999 /* Initialize PC system firmware */
1000 pc_system_firmware_init(pcms, rom_memory);
1001
1002 option_rom_mr = g_malloc(sizeof(*option_rom_mr));
1003 memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE,
1004 &error_fatal);
1005 if (pcmc->pci_enabled) {
1006 memory_region_set_readonly(option_rom_mr, true);
1007 }
1008 memory_region_add_subregion_overlap(rom_memory,
1009 PC_ROM_MIN_VGA,
1010 option_rom_mr,
1011 1);
1012
1013 fw_cfg = fw_cfg_arch_create(machine,
1014 x86ms->boot_cpus, x86ms->apic_id_limit);
1015
1016 rom_set_fw(fw_cfg);
1017
1018 if (pcmc->has_reserved_memory && machine->device_memory->base) {
1019 uint64_t *val = g_malloc(sizeof(*val));
1020 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1021 uint64_t res_mem_end = machine->device_memory->base;
1022
1023 if (!pcmc->broken_reserved_end) {
1024 res_mem_end += memory_region_size(&machine->device_memory->mr);
1025 }
1026 *val = cpu_to_le64(ROUND_UP(res_mem_end, 1 * GiB));
1027 fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val));
1028 }
1029
1030 if (linux_boot) {
1031 x86_load_linux(x86ms, fw_cfg, pcmc->acpi_data_size,
1032 pcmc->pvh_enabled, pcmc->linuxboot_dma_enabled);
1033 }
1034
1035 for (i = 0; i < nb_option_roms; i++) {
1036 rom_add_option(option_rom[i].name, option_rom[i].bootindex);
1037 }
1038 x86ms->fw_cfg = fw_cfg;
1039
1040 /* Init default IOAPIC address space */
1041 x86ms->ioapic_as = &address_space_memory;
1042
1043 /* Init ACPI memory hotplug IO base address */
1044 pcms->memhp_io_base = ACPI_MEMORY_HOTPLUG_BASE;
1045 }
1046
1047 /*
1048 * The 64bit pci hole starts after "above 4G RAM" and
1049 * potentially the space reserved for memory hotplug.
1050 */
1051 uint64_t pc_pci_hole64_start(void)
1052 {
1053 PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
1054 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1055 MachineState *ms = MACHINE(pcms);
1056 X86MachineState *x86ms = X86_MACHINE(pcms);
1057 uint64_t hole64_start = 0;
1058
1059 if (pcmc->has_reserved_memory && ms->device_memory->base) {
1060 hole64_start = ms->device_memory->base;
1061 if (!pcmc->broken_reserved_end) {
1062 hole64_start += memory_region_size(&ms->device_memory->mr);
1063 }
1064 } else {
1065 hole64_start = 0x100000000ULL + x86ms->above_4g_mem_size;
1066 }
1067
1068 return ROUND_UP(hole64_start, 1 * GiB);
1069 }
1070
1071 DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
1072 {
1073 DeviceState *dev = NULL;
1074
1075 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA);
1076 if (pci_bus) {
1077 PCIDevice *pcidev = pci_vga_init(pci_bus);
1078 dev = pcidev ? &pcidev->qdev : NULL;
1079 } else if (isa_bus) {
1080 ISADevice *isadev = isa_vga_init(isa_bus);
1081 dev = isadev ? DEVICE(isadev) : NULL;
1082 }
1083 rom_reset_order_override();
1084 return dev;
1085 }
1086
1087 static const MemoryRegionOps ioport80_io_ops = {
1088 .write = ioport80_write,
1089 .read = ioport80_read,
1090 .endianness = DEVICE_NATIVE_ENDIAN,
1091 .impl = {
1092 .min_access_size = 1,
1093 .max_access_size = 1,
1094 },
1095 };
1096
1097 static const MemoryRegionOps ioportF0_io_ops = {
1098 .write = ioportF0_write,
1099 .read = ioportF0_read,
1100 .endianness = DEVICE_NATIVE_ENDIAN,
1101 .impl = {
1102 .min_access_size = 1,
1103 .max_access_size = 1,
1104 },
1105 };
1106
1107 static void pc_superio_init(ISABus *isa_bus, bool create_fdctrl, bool no_vmport)
1108 {
1109 int i;
1110 DriveInfo *fd[MAX_FD];
1111 qemu_irq *a20_line;
1112 ISADevice *fdc, *i8042, *port92, *vmmouse;
1113
1114 serial_hds_isa_init(isa_bus, 0, MAX_ISA_SERIAL_PORTS);
1115 parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
1116
1117 for (i = 0; i < MAX_FD; i++) {
1118 fd[i] = drive_get(IF_FLOPPY, 0, i);
1119 create_fdctrl |= !!fd[i];
1120 }
1121 if (create_fdctrl) {
1122 fdc = isa_new(TYPE_ISA_FDC);
1123 if (fdc) {
1124 isa_realize_and_unref(fdc, isa_bus, &error_fatal);
1125 isa_fdc_init_drives(fdc, fd);
1126 }
1127 }
1128
1129 i8042 = isa_create_simple(isa_bus, "i8042");
1130 if (!no_vmport) {
1131 isa_create_simple(isa_bus, TYPE_VMPORT);
1132 vmmouse = isa_try_new("vmmouse");
1133 } else {
1134 vmmouse = NULL;
1135 }
1136 if (vmmouse) {
1137 object_property_set_link(OBJECT(vmmouse), "i8042", OBJECT(i8042),
1138 &error_abort);
1139 isa_realize_and_unref(vmmouse, isa_bus, &error_fatal);
1140 }
1141 port92 = isa_create_simple(isa_bus, TYPE_PORT92);
1142
1143 a20_line = qemu_allocate_irqs(handle_a20_line_change, first_cpu, 2);
1144 i8042_setup_a20_line(i8042, a20_line[0]);
1145 qdev_connect_gpio_out_named(DEVICE(port92),
1146 PORT92_A20_LINE, 0, a20_line[1]);
1147 g_free(a20_line);
1148 }
1149
1150 void pc_basic_device_init(struct PCMachineState *pcms,
1151 ISABus *isa_bus, qemu_irq *gsi,
1152 ISADevice **rtc_state,
1153 bool create_fdctrl,
1154 uint32_t hpet_irqs)
1155 {
1156 int i;
1157 DeviceState *hpet = NULL;
1158 int pit_isa_irq = 0;
1159 qemu_irq pit_alt_irq = NULL;
1160 qemu_irq rtc_irq = NULL;
1161 ISADevice *pit = NULL;
1162 MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
1163 MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
1164
1165 memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1);
1166 memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
1167
1168 memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, "ioportF0", 1);
1169 memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
1170
1171 /*
1172 * Check if an HPET shall be created.
1173 *
1174 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1175 * when the HPET wants to take over. Thus we have to disable the latter.
1176 */
1177 if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1178 hpet = qdev_try_new(TYPE_HPET);
1179 if (hpet) {
1180 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7
1181 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
1182 * IRQ8 and IRQ2.
1183 */
1184 uint8_t compat = object_property_get_uint(OBJECT(hpet),
1185 HPET_INTCAP, NULL);
1186 if (!compat) {
1187 qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs);
1188 }
1189 sysbus_realize_and_unref(SYS_BUS_DEVICE(hpet), &error_fatal);
1190 sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE);
1191
1192 for (i = 0; i < GSI_NUM_PINS; i++) {
1193 sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);
1194 }
1195 pit_isa_irq = -1;
1196 pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
1197 rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
1198 }
1199 }
1200 *rtc_state = mc146818_rtc_init(isa_bus, 2000, rtc_irq);
1201
1202 qemu_register_boot_set(pc_boot_set, *rtc_state);
1203
1204 if (!xen_enabled() && pcms->pit_enabled) {
1205 if (kvm_pit_in_kernel()) {
1206 pit = kvm_pit_init(isa_bus, 0x40);
1207 } else {
1208 pit = i8254_pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
1209 }
1210 if (hpet) {
1211 /* connect PIT to output control line of the HPET */
1212 qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0));
1213 }
1214 pcspk_init(pcms->pcspk, isa_bus, pit);
1215 }
1216
1217 i8257_dma_init(isa_bus, 0);
1218
1219 /* Super I/O */
1220 pc_superio_init(isa_bus, create_fdctrl, pcms->vmport != ON_OFF_AUTO_ON);
1221 }
1222
1223 void pc_nic_init(PCMachineClass *pcmc, ISABus *isa_bus, PCIBus *pci_bus)
1224 {
1225 int i;
1226
1227 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC);
1228 for (i = 0; i < nb_nics; i++) {
1229 NICInfo *nd = &nd_table[i];
1230 const char *model = nd->model ? nd->model : pcmc->default_nic_model;
1231
1232 if (g_str_equal(model, "ne2k_isa")) {
1233 pc_init_ne2k_isa(isa_bus, nd);
1234 } else {
1235 pci_nic_init_nofail(nd, pci_bus, model, NULL);
1236 }
1237 }
1238 rom_reset_order_override();
1239 }
1240
1241 void pc_i8259_create(ISABus *isa_bus, qemu_irq *i8259_irqs)
1242 {
1243 qemu_irq *i8259;
1244
1245 if (kvm_pic_in_kernel()) {
1246 i8259 = kvm_i8259_init(isa_bus);
1247 } else if (xen_enabled()) {
1248 i8259 = xen_interrupt_controller_init();
1249 } else {
1250 i8259 = i8259_init(isa_bus, x86_allocate_cpu_irq());
1251 }
1252
1253 for (size_t i = 0; i < ISA_NUM_IRQS; i++) {
1254 i8259_irqs[i] = i8259[i];
1255 }
1256
1257 g_free(i8259);
1258 }
1259
1260 static void pc_memory_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
1261 Error **errp)
1262 {
1263 const PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1264 const X86MachineState *x86ms = X86_MACHINE(hotplug_dev);
1265 const PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
1266 const MachineState *ms = MACHINE(hotplug_dev);
1267 const bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1268 const uint64_t legacy_align = TARGET_PAGE_SIZE;
1269 Error *local_err = NULL;
1270
1271 /*
1272 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1273 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1274 * addition to cover this case.
1275 */
1276 if (!x86ms->acpi_dev || !x86_machine_is_acpi_enabled(x86ms)) {
1277 error_setg(errp,
1278 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1279 return;
1280 }
1281
1282 if (is_nvdimm && !ms->nvdimms_state->is_enabled) {
1283 error_setg(errp, "nvdimm is not enabled: missing 'nvdimm' in '-M'");
1284 return;
1285 }
1286
1287 hotplug_handler_pre_plug(x86ms->acpi_dev, dev, &local_err);
1288 if (local_err) {
1289 error_propagate(errp, local_err);
1290 return;
1291 }
1292
1293 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev),
1294 pcmc->enforce_aligned_dimm ? NULL : &legacy_align, errp);
1295 }
1296
1297 static void pc_memory_plug(HotplugHandler *hotplug_dev,
1298 DeviceState *dev, Error **errp)
1299 {
1300 Error *local_err = NULL;
1301 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1302 X86MachineState *x86ms = X86_MACHINE(hotplug_dev);
1303 MachineState *ms = MACHINE(hotplug_dev);
1304 bool is_nvdimm = object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1305
1306 pc_dimm_plug(PC_DIMM(dev), MACHINE(pcms), &local_err);
1307 if (local_err) {
1308 goto out;
1309 }
1310
1311 if (is_nvdimm) {
1312 nvdimm_plug(ms->nvdimms_state);
1313 }
1314
1315 hotplug_handler_plug(x86ms->acpi_dev, dev, &error_abort);
1316 out:
1317 error_propagate(errp, local_err);
1318 }
1319
1320 static void pc_memory_unplug_request(HotplugHandler *hotplug_dev,
1321 DeviceState *dev, Error **errp)
1322 {
1323 X86MachineState *x86ms = X86_MACHINE(hotplug_dev);
1324
1325 /*
1326 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1327 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1328 * addition to cover this case.
1329 */
1330 if (!x86ms->acpi_dev || !x86_machine_is_acpi_enabled(x86ms)) {
1331 error_setg(errp,
1332 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1333 return;
1334 }
1335
1336 if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
1337 error_setg(errp, "nvdimm device hot unplug is not supported yet.");
1338 return;
1339 }
1340
1341 hotplug_handler_unplug_request(x86ms->acpi_dev, dev,
1342 errp);
1343 }
1344
1345 static void pc_memory_unplug(HotplugHandler *hotplug_dev,
1346 DeviceState *dev, Error **errp)
1347 {
1348 PCMachineState *pcms = PC_MACHINE(hotplug_dev);
1349 X86MachineState *x86ms = X86_MACHINE(hotplug_dev);
1350 Error *local_err = NULL;
1351
1352 hotplug_handler_unplug(x86ms->acpi_dev, dev, &local_err);
1353 if (local_err) {
1354 goto out;
1355 }
1356
1357 pc_dimm_unplug(PC_DIMM(dev), MACHINE(pcms));
1358 qdev_unrealize(dev);
1359 out:
1360 error_propagate(errp, local_err);
1361 }
1362
1363 static void pc_virtio_md_pci_pre_plug(HotplugHandler *hotplug_dev,
1364 DeviceState *dev, Error **errp)
1365 {
1366 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev);
1367 Error *local_err = NULL;
1368
1369 if (!hotplug_dev2 && dev->hotplugged) {
1370 /*
1371 * Without a bus hotplug handler, we cannot control the plug/unplug
1372 * order. We should never reach this point when hotplugging on x86,
1373 * however, better add a safety net.
1374 */
1375 error_setg(errp, "hotplug of virtio based memory devices not supported"
1376 " on this bus.");
1377 return;
1378 }
1379 /*
1380 * First, see if we can plug this memory device at all. If that
1381 * succeeds, branch of to the actual hotplug handler.
1382 */
1383 memory_device_pre_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev), NULL,
1384 &local_err);
1385 if (!local_err && hotplug_dev2) {
1386 hotplug_handler_pre_plug(hotplug_dev2, dev, &local_err);
1387 }
1388 error_propagate(errp, local_err);
1389 }
1390
1391 static void pc_virtio_md_pci_plug(HotplugHandler *hotplug_dev,
1392 DeviceState *dev, Error **errp)
1393 {
1394 HotplugHandler *hotplug_dev2 = qdev_get_bus_hotplug_handler(dev);
1395 Error *local_err = NULL;
1396
1397 /*
1398 * Plug the memory device first and then branch off to the actual
1399 * hotplug handler. If that one fails, we can easily undo the memory
1400 * device bits.
1401 */
1402 memory_device_plug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev));
1403 if (hotplug_dev2) {
1404 hotplug_handler_plug(hotplug_dev2, dev, &local_err);
1405 if (local_err) {
1406 memory_device_unplug(MEMORY_DEVICE(dev), MACHINE(hotplug_dev));
1407 }
1408 }
1409 error_propagate(errp, local_err);
1410 }
1411
1412 static void pc_virtio_md_pci_unplug_request(HotplugHandler *hotplug_dev,
1413 DeviceState *dev, Error **errp)
1414 {
1415 /* We don't support hot unplug of virtio based memory devices */
1416 error_setg(errp, "virtio based memory devices cannot be unplugged.");
1417 }
1418
1419 static void pc_virtio_md_pci_unplug(HotplugHandler *hotplug_dev,
1420 DeviceState *dev, Error **errp)
1421 {
1422 /* We don't support hot unplug of virtio based memory devices */
1423 }
1424
1425 static void pc_machine_device_pre_plug_cb(HotplugHandler *hotplug_dev,
1426 DeviceState *dev, Error **errp)
1427 {
1428 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1429 pc_memory_pre_plug(hotplug_dev, dev, errp);
1430 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1431 x86_cpu_pre_plug(hotplug_dev, dev, errp);
1432 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI) ||
1433 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) {
1434 pc_virtio_md_pci_pre_plug(hotplug_dev, dev, errp);
1435 }
1436 }
1437
1438 static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev,
1439 DeviceState *dev, Error **errp)
1440 {
1441 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1442 pc_memory_plug(hotplug_dev, dev, errp);
1443 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1444 x86_cpu_plug(hotplug_dev, dev, errp);
1445 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI) ||
1446 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) {
1447 pc_virtio_md_pci_plug(hotplug_dev, dev, errp);
1448 }
1449 }
1450
1451 static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
1452 DeviceState *dev, Error **errp)
1453 {
1454 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1455 pc_memory_unplug_request(hotplug_dev, dev, errp);
1456 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1457 x86_cpu_unplug_request_cb(hotplug_dev, dev, errp);
1458 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI) ||
1459 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) {
1460 pc_virtio_md_pci_unplug_request(hotplug_dev, dev, errp);
1461 } else {
1462 error_setg(errp, "acpi: device unplug request for not supported device"
1463 " type: %s", object_get_typename(OBJECT(dev)));
1464 }
1465 }
1466
1467 static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev,
1468 DeviceState *dev, Error **errp)
1469 {
1470 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
1471 pc_memory_unplug(hotplug_dev, dev, errp);
1472 } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
1473 x86_cpu_unplug_cb(hotplug_dev, dev, errp);
1474 } else if (object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI) ||
1475 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) {
1476 pc_virtio_md_pci_unplug(hotplug_dev, dev, errp);
1477 } else {
1478 error_setg(errp, "acpi: device unplug for not supported device"
1479 " type: %s", object_get_typename(OBJECT(dev)));
1480 }
1481 }
1482
1483 static HotplugHandler *pc_get_hotplug_handler(MachineState *machine,
1484 DeviceState *dev)
1485 {
1486 if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) ||
1487 object_dynamic_cast(OBJECT(dev), TYPE_CPU) ||
1488 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_PMEM_PCI) ||
1489 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_MEM_PCI)) {
1490 return HOTPLUG_HANDLER(machine);
1491 }
1492
1493 return NULL;
1494 }
1495
1496 static void
1497 pc_machine_get_device_memory_region_size(Object *obj, Visitor *v,
1498 const char *name, void *opaque,
1499 Error **errp)
1500 {
1501 MachineState *ms = MACHINE(obj);
1502 int64_t value = 0;
1503
1504 if (ms->device_memory) {
1505 value = memory_region_size(&ms->device_memory->mr);
1506 }
1507
1508 visit_type_int(v, name, &value, errp);
1509 }
1510
1511 static void pc_machine_get_vmport(Object *obj, Visitor *v, const char *name,
1512 void *opaque, Error **errp)
1513 {
1514 PCMachineState *pcms = PC_MACHINE(obj);
1515 OnOffAuto vmport = pcms->vmport;
1516
1517 visit_type_OnOffAuto(v, name, &vmport, errp);
1518 }
1519
1520 static void pc_machine_set_vmport(Object *obj, Visitor *v, const char *name,
1521 void *opaque, Error **errp)
1522 {
1523 PCMachineState *pcms = PC_MACHINE(obj);
1524
1525 visit_type_OnOffAuto(v, name, &pcms->vmport, errp);
1526 }
1527
1528 static bool pc_machine_get_smbus(Object *obj, Error **errp)
1529 {
1530 PCMachineState *pcms = PC_MACHINE(obj);
1531
1532 return pcms->smbus_enabled;
1533 }
1534
1535 static void pc_machine_set_smbus(Object *obj, bool value, Error **errp)
1536 {
1537 PCMachineState *pcms = PC_MACHINE(obj);
1538
1539 pcms->smbus_enabled = value;
1540 }
1541
1542 static bool pc_machine_get_sata(Object *obj, Error **errp)
1543 {
1544 PCMachineState *pcms = PC_MACHINE(obj);
1545
1546 return pcms->sata_enabled;
1547 }
1548
1549 static void pc_machine_set_sata(Object *obj, bool value, Error **errp)
1550 {
1551 PCMachineState *pcms = PC_MACHINE(obj);
1552
1553 pcms->sata_enabled = value;
1554 }
1555
1556 static bool pc_machine_get_pit(Object *obj, Error **errp)
1557 {
1558 PCMachineState *pcms = PC_MACHINE(obj);
1559
1560 return pcms->pit_enabled;
1561 }
1562
1563 static void pc_machine_set_pit(Object *obj, bool value, Error **errp)
1564 {
1565 PCMachineState *pcms = PC_MACHINE(obj);
1566
1567 pcms->pit_enabled = value;
1568 }
1569
1570 static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v,
1571 const char *name, void *opaque,
1572 Error **errp)
1573 {
1574 PCMachineState *pcms = PC_MACHINE(obj);
1575 uint64_t value = pcms->max_ram_below_4g;
1576
1577 visit_type_size(v, name, &value, errp);
1578 }
1579
1580 static void pc_machine_set_max_ram_below_4g(Object *obj, Visitor *v,
1581 const char *name, void *opaque,
1582 Error **errp)
1583 {
1584 PCMachineState *pcms = PC_MACHINE(obj);
1585 uint64_t value;
1586
1587 if (!visit_type_size(v, name, &value, errp)) {
1588 return;
1589 }
1590 if (value > 4 * GiB) {
1591 error_setg(errp,
1592 "Machine option 'max-ram-below-4g=%"PRIu64
1593 "' expects size less than or equal to 4G", value);
1594 return;
1595 }
1596
1597 if (value < 1 * MiB) {
1598 warn_report("Only %" PRIu64 " bytes of RAM below the 4GiB boundary,"
1599 "BIOS may not work with less than 1MiB", value);
1600 }
1601
1602 pcms->max_ram_below_4g = value;
1603 }
1604
1605 static void pc_machine_initfn(Object *obj)
1606 {
1607 PCMachineState *pcms = PC_MACHINE(obj);
1608
1609 #ifdef CONFIG_VMPORT
1610 pcms->vmport = ON_OFF_AUTO_AUTO;
1611 #else
1612 pcms->vmport = ON_OFF_AUTO_OFF;
1613 #endif /* CONFIG_VMPORT */
1614 pcms->max_ram_below_4g = 0; /* use default */
1615 /* acpi build is enabled by default if machine supports it */
1616 pcms->acpi_build_enabled = PC_MACHINE_GET_CLASS(pcms)->has_acpi_build;
1617 pcms->smbus_enabled = true;
1618 pcms->sata_enabled = true;
1619 pcms->pit_enabled = true;
1620
1621 pc_system_flash_create(pcms);
1622 pcms->pcspk = isa_new(TYPE_PC_SPEAKER);
1623 object_property_add_alias(OBJECT(pcms), "pcspk-audiodev",
1624 OBJECT(pcms->pcspk), "audiodev");
1625 }
1626
1627 static void pc_machine_reset(MachineState *machine)
1628 {
1629 CPUState *cs;
1630 X86CPU *cpu;
1631
1632 qemu_devices_reset();
1633
1634 /* Reset APIC after devices have been reset to cancel
1635 * any changes that qemu_devices_reset() might have done.
1636 */
1637 CPU_FOREACH(cs) {
1638 cpu = X86_CPU(cs);
1639
1640 if (cpu->apic_state) {
1641 device_legacy_reset(cpu->apic_state);
1642 }
1643 }
1644 }
1645
1646 static void pc_machine_wakeup(MachineState *machine)
1647 {
1648 cpu_synchronize_all_states();
1649 pc_machine_reset(machine);
1650 cpu_synchronize_all_post_reset();
1651 }
1652
1653 static bool pc_hotplug_allowed(MachineState *ms, DeviceState *dev, Error **errp)
1654 {
1655 X86IOMMUState *iommu = x86_iommu_get_default();
1656 IntelIOMMUState *intel_iommu;
1657
1658 if (iommu &&
1659 object_dynamic_cast((Object *)iommu, TYPE_INTEL_IOMMU_DEVICE) &&
1660 object_dynamic_cast((Object *)dev, "vfio-pci")) {
1661 intel_iommu = INTEL_IOMMU_DEVICE(iommu);
1662 if (!intel_iommu->caching_mode) {
1663 error_setg(errp, "Device assignment is not allowed without "
1664 "enabling caching-mode=on for Intel IOMMU.");
1665 return false;
1666 }
1667 }
1668
1669 return true;
1670 }
1671
1672 static void pc_machine_class_init(ObjectClass *oc, void *data)
1673 {
1674 MachineClass *mc = MACHINE_CLASS(oc);
1675 PCMachineClass *pcmc = PC_MACHINE_CLASS(oc);
1676 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
1677
1678 pcmc->pci_enabled = true;
1679 pcmc->has_acpi_build = true;
1680 pcmc->rsdp_in_ram = true;
1681 pcmc->smbios_defaults = true;
1682 pcmc->smbios_uuid_encoded = true;
1683 pcmc->gigabyte_align = true;
1684 pcmc->has_reserved_memory = true;
1685 pcmc->kvmclock_enabled = true;
1686 pcmc->enforce_aligned_dimm = true;
1687 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
1688 * to be used at the moment, 32K should be enough for a while. */
1689 pcmc->acpi_data_size = 0x20000 + 0x8000;
1690 pcmc->linuxboot_dma_enabled = true;
1691 pcmc->pvh_enabled = true;
1692 assert(!mc->get_hotplug_handler);
1693 mc->get_hotplug_handler = pc_get_hotplug_handler;
1694 mc->hotplug_allowed = pc_hotplug_allowed;
1695 mc->cpu_index_to_instance_props = x86_cpu_index_to_props;
1696 mc->get_default_cpu_node_id = x86_get_default_cpu_node_id;
1697 mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids;
1698 mc->auto_enable_numa_with_memhp = true;
1699 mc->auto_enable_numa_with_memdev = true;
1700 mc->has_hotpluggable_cpus = true;
1701 mc->default_boot_order = "cad";
1702 mc->hot_add_cpu = pc_hot_add_cpu;
1703 mc->smp_parse = pc_smp_parse;
1704 mc->block_default_type = IF_IDE;
1705 mc->max_cpus = 255;
1706 mc->reset = pc_machine_reset;
1707 mc->wakeup = pc_machine_wakeup;
1708 hc->pre_plug = pc_machine_device_pre_plug_cb;
1709 hc->plug = pc_machine_device_plug_cb;
1710 hc->unplug_request = pc_machine_device_unplug_request_cb;
1711 hc->unplug = pc_machine_device_unplug_cb;
1712 mc->default_cpu_type = TARGET_DEFAULT_CPU_TYPE;
1713 mc->nvdimm_supported = true;
1714 mc->default_ram_id = "pc.ram";
1715
1716 object_class_property_add(oc, PC_MACHINE_MAX_RAM_BELOW_4G, "size",
1717 pc_machine_get_max_ram_below_4g, pc_machine_set_max_ram_below_4g,
1718 NULL, NULL);
1719 object_class_property_set_description(oc, PC_MACHINE_MAX_RAM_BELOW_4G,
1720 "Maximum ram below the 4G boundary (32bit boundary)");
1721
1722 object_class_property_add(oc, PC_MACHINE_DEVMEM_REGION_SIZE, "int",
1723 pc_machine_get_device_memory_region_size, NULL,
1724 NULL, NULL);
1725
1726 object_class_property_add(oc, PC_MACHINE_VMPORT, "OnOffAuto",
1727 pc_machine_get_vmport, pc_machine_set_vmport,
1728 NULL, NULL);
1729 object_class_property_set_description(oc, PC_MACHINE_VMPORT,
1730 "Enable vmport (pc & q35)");
1731
1732 object_class_property_add_bool(oc, PC_MACHINE_SMBUS,
1733 pc_machine_get_smbus, pc_machine_set_smbus);
1734
1735 object_class_property_add_bool(oc, PC_MACHINE_SATA,
1736 pc_machine_get_sata, pc_machine_set_sata);
1737
1738 object_class_property_add_bool(oc, PC_MACHINE_PIT,
1739 pc_machine_get_pit, pc_machine_set_pit);
1740 }
1741
1742 static const TypeInfo pc_machine_info = {
1743 .name = TYPE_PC_MACHINE,
1744 .parent = TYPE_X86_MACHINE,
1745 .abstract = true,
1746 .instance_size = sizeof(PCMachineState),
1747 .instance_init = pc_machine_initfn,
1748 .class_size = sizeof(PCMachineClass),
1749 .class_init = pc_machine_class_init,
1750 .interfaces = (InterfaceInfo[]) {
1751 { TYPE_HOTPLUG_HANDLER },
1752 { }
1753 },
1754 };
1755
1756 static void pc_machine_register_types(void)
1757 {
1758 type_register_static(&pc_machine_info);
1759 }
1760
1761 type_init(pc_machine_register_types)