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 "hw/i386/vmport.h"
35 #include "sysemu/cpus.h"
36 #include "hw/block/fdc.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"
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"
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"
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"
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/mem/memory-device.h"
92 #include "sysemu/replay.h"
93 #include "qapi/qmp/qerror.h"
94 #include "config-devices.h"
95 #include "e820_memory_layout.h"
99 GlobalProperty pc_compat_5_0
[] = {};
100 const size_t pc_compat_5_0_len
= G_N_ELEMENTS(pc_compat_5_0
);
102 GlobalProperty pc_compat_4_2
[] = {
103 { "mch", "smbase-smram", "off" },
105 const size_t pc_compat_4_2_len
= G_N_ELEMENTS(pc_compat_4_2
);
107 GlobalProperty pc_compat_4_1
[] = {};
108 const size_t pc_compat_4_1_len
= G_N_ELEMENTS(pc_compat_4_1
);
110 GlobalProperty pc_compat_4_0
[] = {};
111 const size_t pc_compat_4_0_len
= G_N_ELEMENTS(pc_compat_4_0
);
113 GlobalProperty pc_compat_3_1
[] = {
114 { "intel-iommu", "dma-drain", "off" },
115 { "Opteron_G3" "-" TYPE_X86_CPU
, "rdtscp", "off" },
116 { "Opteron_G4" "-" TYPE_X86_CPU
, "rdtscp", "off" },
117 { "Opteron_G4" "-" TYPE_X86_CPU
, "npt", "off" },
118 { "Opteron_G4" "-" TYPE_X86_CPU
, "nrip-save", "off" },
119 { "Opteron_G5" "-" TYPE_X86_CPU
, "rdtscp", "off" },
120 { "Opteron_G5" "-" TYPE_X86_CPU
, "npt", "off" },
121 { "Opteron_G5" "-" TYPE_X86_CPU
, "nrip-save", "off" },
122 { "EPYC" "-" TYPE_X86_CPU
, "npt", "off" },
123 { "EPYC" "-" TYPE_X86_CPU
, "nrip-save", "off" },
124 { "EPYC-IBPB" "-" TYPE_X86_CPU
, "npt", "off" },
125 { "EPYC-IBPB" "-" TYPE_X86_CPU
, "nrip-save", "off" },
126 { "Skylake-Client" "-" TYPE_X86_CPU
, "mpx", "on" },
127 { "Skylake-Client-IBRS" "-" TYPE_X86_CPU
, "mpx", "on" },
128 { "Skylake-Server" "-" TYPE_X86_CPU
, "mpx", "on" },
129 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU
, "mpx", "on" },
130 { "Cascadelake-Server" "-" TYPE_X86_CPU
, "mpx", "on" },
131 { "Icelake-Client" "-" TYPE_X86_CPU
, "mpx", "on" },
132 { "Icelake-Server" "-" TYPE_X86_CPU
, "mpx", "on" },
133 { "Cascadelake-Server" "-" TYPE_X86_CPU
, "stepping", "5" },
134 { TYPE_X86_CPU
, "x-intel-pt-auto-level", "off" },
136 const size_t pc_compat_3_1_len
= G_N_ELEMENTS(pc_compat_3_1
);
138 GlobalProperty pc_compat_3_0
[] = {
139 { TYPE_X86_CPU
, "x-hv-synic-kvm-only", "on" },
140 { "Skylake-Server" "-" TYPE_X86_CPU
, "pku", "off" },
141 { "Skylake-Server-IBRS" "-" TYPE_X86_CPU
, "pku", "off" },
143 const size_t pc_compat_3_0_len
= G_N_ELEMENTS(pc_compat_3_0
);
145 GlobalProperty pc_compat_2_12
[] = {
146 { TYPE_X86_CPU
, "legacy-cache", "on" },
147 { TYPE_X86_CPU
, "topoext", "off" },
148 { "EPYC-" TYPE_X86_CPU
, "xlevel", "0x8000000a" },
149 { "EPYC-IBPB-" TYPE_X86_CPU
, "xlevel", "0x8000000a" },
151 const size_t pc_compat_2_12_len
= G_N_ELEMENTS(pc_compat_2_12
);
153 GlobalProperty pc_compat_2_11
[] = {
154 { TYPE_X86_CPU
, "x-migrate-smi-count", "off" },
155 { "Skylake-Server" "-" TYPE_X86_CPU
, "clflushopt", "off" },
157 const size_t pc_compat_2_11_len
= G_N_ELEMENTS(pc_compat_2_11
);
159 GlobalProperty pc_compat_2_10
[] = {
160 { TYPE_X86_CPU
, "x-hv-max-vps", "0x40" },
161 { "i440FX-pcihost", "x-pci-hole64-fix", "off" },
162 { "q35-pcihost", "x-pci-hole64-fix", "off" },
164 const size_t pc_compat_2_10_len
= G_N_ELEMENTS(pc_compat_2_10
);
166 GlobalProperty pc_compat_2_9
[] = {
167 { "mch", "extended-tseg-mbytes", "0" },
169 const size_t pc_compat_2_9_len
= G_N_ELEMENTS(pc_compat_2_9
);
171 GlobalProperty pc_compat_2_8
[] = {
172 { TYPE_X86_CPU
, "tcg-cpuid", "off" },
173 { "kvmclock", "x-mach-use-reliable-get-clock", "off" },
174 { "ICH9-LPC", "x-smi-broadcast", "off" },
175 { TYPE_X86_CPU
, "vmware-cpuid-freq", "off" },
176 { "Haswell-" TYPE_X86_CPU
, "stepping", "1" },
178 const size_t pc_compat_2_8_len
= G_N_ELEMENTS(pc_compat_2_8
);
180 GlobalProperty pc_compat_2_7
[] = {
181 { TYPE_X86_CPU
, "l3-cache", "off" },
182 { TYPE_X86_CPU
, "full-cpuid-auto-level", "off" },
183 { "Opteron_G3" "-" TYPE_X86_CPU
, "family", "15" },
184 { "Opteron_G3" "-" TYPE_X86_CPU
, "model", "6" },
185 { "Opteron_G3" "-" TYPE_X86_CPU
, "stepping", "1" },
186 { "isa-pcspk", "migrate", "off" },
188 const size_t pc_compat_2_7_len
= G_N_ELEMENTS(pc_compat_2_7
);
190 GlobalProperty pc_compat_2_6
[] = {
191 { TYPE_X86_CPU
, "cpuid-0xb", "off" },
192 { "vmxnet3", "romfile", "" },
193 { TYPE_X86_CPU
, "fill-mtrr-mask", "off" },
194 { "apic-common", "legacy-instance-id", "on", }
196 const size_t pc_compat_2_6_len
= G_N_ELEMENTS(pc_compat_2_6
);
198 GlobalProperty pc_compat_2_5
[] = {};
199 const size_t pc_compat_2_5_len
= G_N_ELEMENTS(pc_compat_2_5
);
201 GlobalProperty pc_compat_2_4
[] = {
202 PC_CPU_MODEL_IDS("2.4.0")
203 { "Haswell-" TYPE_X86_CPU
, "abm", "off" },
204 { "Haswell-noTSX-" TYPE_X86_CPU
, "abm", "off" },
205 { "Broadwell-" TYPE_X86_CPU
, "abm", "off" },
206 { "Broadwell-noTSX-" TYPE_X86_CPU
, "abm", "off" },
207 { "host" "-" TYPE_X86_CPU
, "host-cache-info", "on" },
208 { TYPE_X86_CPU
, "check", "off" },
209 { "qemu64" "-" TYPE_X86_CPU
, "sse4a", "on" },
210 { "qemu64" "-" TYPE_X86_CPU
, "abm", "on" },
211 { "qemu64" "-" TYPE_X86_CPU
, "popcnt", "on" },
212 { "qemu32" "-" TYPE_X86_CPU
, "popcnt", "on" },
213 { "Opteron_G2" "-" TYPE_X86_CPU
, "rdtscp", "on" },
214 { "Opteron_G3" "-" TYPE_X86_CPU
, "rdtscp", "on" },
215 { "Opteron_G4" "-" TYPE_X86_CPU
, "rdtscp", "on" },
216 { "Opteron_G5" "-" TYPE_X86_CPU
, "rdtscp", "on", }
218 const size_t pc_compat_2_4_len
= G_N_ELEMENTS(pc_compat_2_4
);
220 GlobalProperty pc_compat_2_3
[] = {
221 PC_CPU_MODEL_IDS("2.3.0")
222 { TYPE_X86_CPU
, "arat", "off" },
223 { "qemu64" "-" TYPE_X86_CPU
, "min-level", "4" },
224 { "kvm64" "-" TYPE_X86_CPU
, "min-level", "5" },
225 { "pentium3" "-" TYPE_X86_CPU
, "min-level", "2" },
226 { "n270" "-" TYPE_X86_CPU
, "min-level", "5" },
227 { "Conroe" "-" TYPE_X86_CPU
, "min-level", "4" },
228 { "Penryn" "-" TYPE_X86_CPU
, "min-level", "4" },
229 { "Nehalem" "-" TYPE_X86_CPU
, "min-level", "4" },
230 { "n270" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
231 { "Penryn" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
232 { "Conroe" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
233 { "Nehalem" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
234 { "Westmere" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
235 { "SandyBridge" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
236 { "IvyBridge" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
237 { "Haswell" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
238 { "Haswell-noTSX" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
239 { "Broadwell" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
240 { "Broadwell-noTSX" "-" TYPE_X86_CPU
, "min-xlevel", "0x8000000a" },
241 { TYPE_X86_CPU
, "kvm-no-smi-migration", "on" },
243 const size_t pc_compat_2_3_len
= G_N_ELEMENTS(pc_compat_2_3
);
245 GlobalProperty pc_compat_2_2
[] = {
246 PC_CPU_MODEL_IDS("2.2.0")
247 { "kvm64" "-" TYPE_X86_CPU
, "vme", "off" },
248 { "kvm32" "-" TYPE_X86_CPU
, "vme", "off" },
249 { "Conroe" "-" TYPE_X86_CPU
, "vme", "off" },
250 { "Penryn" "-" TYPE_X86_CPU
, "vme", "off" },
251 { "Nehalem" "-" TYPE_X86_CPU
, "vme", "off" },
252 { "Westmere" "-" TYPE_X86_CPU
, "vme", "off" },
253 { "SandyBridge" "-" TYPE_X86_CPU
, "vme", "off" },
254 { "Haswell" "-" TYPE_X86_CPU
, "vme", "off" },
255 { "Broadwell" "-" TYPE_X86_CPU
, "vme", "off" },
256 { "Opteron_G1" "-" TYPE_X86_CPU
, "vme", "off" },
257 { "Opteron_G2" "-" TYPE_X86_CPU
, "vme", "off" },
258 { "Opteron_G3" "-" TYPE_X86_CPU
, "vme", "off" },
259 { "Opteron_G4" "-" TYPE_X86_CPU
, "vme", "off" },
260 { "Opteron_G5" "-" TYPE_X86_CPU
, "vme", "off" },
261 { "Haswell" "-" TYPE_X86_CPU
, "f16c", "off" },
262 { "Haswell" "-" TYPE_X86_CPU
, "rdrand", "off" },
263 { "Broadwell" "-" TYPE_X86_CPU
, "f16c", "off" },
264 { "Broadwell" "-" TYPE_X86_CPU
, "rdrand", "off" },
266 const size_t pc_compat_2_2_len
= G_N_ELEMENTS(pc_compat_2_2
);
268 GlobalProperty pc_compat_2_1
[] = {
269 PC_CPU_MODEL_IDS("2.1.0")
270 { "coreduo" "-" TYPE_X86_CPU
, "vmx", "on" },
271 { "core2duo" "-" TYPE_X86_CPU
, "vmx", "on" },
273 const size_t pc_compat_2_1_len
= G_N_ELEMENTS(pc_compat_2_1
);
275 GlobalProperty pc_compat_2_0
[] = {
276 PC_CPU_MODEL_IDS("2.0.0")
277 { "virtio-scsi-pci", "any_layout", "off" },
278 { "PIIX4_PM", "memory-hotplug-support", "off" },
279 { "apic", "version", "0x11" },
280 { "nec-usb-xhci", "superspeed-ports-first", "off" },
281 { "nec-usb-xhci", "force-pcie-endcap", "on" },
282 { "pci-serial", "prog_if", "0" },
283 { "pci-serial-2x", "prog_if", "0" },
284 { "pci-serial-4x", "prog_if", "0" },
285 { "virtio-net-pci", "guest_announce", "off" },
286 { "ICH9-LPC", "memory-hotplug-support", "off" },
287 { "xio3130-downstream", COMPAT_PROP_PCP
, "off" },
288 { "ioh3420", COMPAT_PROP_PCP
, "off" },
290 const size_t pc_compat_2_0_len
= G_N_ELEMENTS(pc_compat_2_0
);
292 GlobalProperty pc_compat_1_7
[] = {
293 PC_CPU_MODEL_IDS("1.7.0")
294 { TYPE_USB_DEVICE
, "msos-desc", "no" },
295 { "PIIX4_PM", "acpi-pci-hotplug-with-bridge-support", "off" },
296 { "hpet", HPET_INTCAP
, "4" },
298 const size_t pc_compat_1_7_len
= G_N_ELEMENTS(pc_compat_1_7
);
300 GlobalProperty pc_compat_1_6
[] = {
301 PC_CPU_MODEL_IDS("1.6.0")
302 { "e1000", "mitigation", "off" },
303 { "qemu64-" TYPE_X86_CPU
, "model", "2" },
304 { "qemu32-" TYPE_X86_CPU
, "model", "3" },
305 { "i440FX-pcihost", "short_root_bus", "1" },
306 { "q35-pcihost", "short_root_bus", "1" },
308 const size_t pc_compat_1_6_len
= G_N_ELEMENTS(pc_compat_1_6
);
310 GlobalProperty pc_compat_1_5
[] = {
311 PC_CPU_MODEL_IDS("1.5.0")
312 { "Conroe-" TYPE_X86_CPU
, "model", "2" },
313 { "Conroe-" TYPE_X86_CPU
, "min-level", "2" },
314 { "Penryn-" TYPE_X86_CPU
, "model", "2" },
315 { "Penryn-" TYPE_X86_CPU
, "min-level", "2" },
316 { "Nehalem-" TYPE_X86_CPU
, "model", "2" },
317 { "Nehalem-" TYPE_X86_CPU
, "min-level", "2" },
318 { "virtio-net-pci", "any_layout", "off" },
319 { TYPE_X86_CPU
, "pmu", "on" },
320 { "i440FX-pcihost", "short_root_bus", "0" },
321 { "q35-pcihost", "short_root_bus", "0" },
323 const size_t pc_compat_1_5_len
= G_N_ELEMENTS(pc_compat_1_5
);
325 GlobalProperty pc_compat_1_4
[] = {
326 PC_CPU_MODEL_IDS("1.4.0")
327 { "scsi-hd", "discard_granularity", "0" },
328 { "scsi-cd", "discard_granularity", "0" },
329 { "scsi-disk", "discard_granularity", "0" },
330 { "ide-hd", "discard_granularity", "0" },
331 { "ide-cd", "discard_granularity", "0" },
332 { "ide-drive", "discard_granularity", "0" },
333 { "virtio-blk-pci", "discard_granularity", "0" },
334 /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string: */
335 { "virtio-serial-pci", "vectors", "0xFFFFFFFF" },
336 { "virtio-net-pci", "ctrl_guest_offloads", "off" },
337 { "e1000", "romfile", "pxe-e1000.rom" },
338 { "ne2k_pci", "romfile", "pxe-ne2k_pci.rom" },
339 { "pcnet", "romfile", "pxe-pcnet.rom" },
340 { "rtl8139", "romfile", "pxe-rtl8139.rom" },
341 { "virtio-net-pci", "romfile", "pxe-virtio.rom" },
342 { "486-" TYPE_X86_CPU
, "model", "0" },
343 { "n270" "-" TYPE_X86_CPU
, "movbe", "off" },
344 { "Westmere" "-" TYPE_X86_CPU
, "pclmulqdq", "off" },
346 const size_t pc_compat_1_4_len
= G_N_ELEMENTS(pc_compat_1_4
);
348 GSIState
*pc_gsi_create(qemu_irq
**irqs
, bool pci_enabled
)
352 s
= g_new0(GSIState
, 1);
353 if (kvm_ioapic_in_kernel()) {
354 kvm_pc_setup_irq_routing(pci_enabled
);
356 *irqs
= qemu_allocate_irqs(gsi_handler
, s
, GSI_NUM_PINS
);
361 static void ioport80_write(void *opaque
, hwaddr addr
, uint64_t data
,
366 static uint64_t ioport80_read(void *opaque
, hwaddr addr
, unsigned size
)
368 return 0xffffffffffffffffULL
;
371 /* MSDOS compatibility mode FPU exception support */
372 static void ioportF0_write(void *opaque
, hwaddr addr
, uint64_t data
,
380 static uint64_t ioportF0_read(void *opaque
, hwaddr addr
, unsigned size
)
382 return 0xffffffffffffffffULL
;
385 /* PC cmos mappings */
387 #define REG_EQUIPMENT_BYTE 0x14
389 int cmos_get_fd_drive_type(FloppyDriveType fd0
)
394 case FLOPPY_DRIVE_TYPE_144
:
395 /* 1.44 Mb 3"5 drive */
398 case FLOPPY_DRIVE_TYPE_288
:
399 /* 2.88 Mb 3"5 drive */
402 case FLOPPY_DRIVE_TYPE_120
:
403 /* 1.2 Mb 5"5 drive */
406 case FLOPPY_DRIVE_TYPE_NONE
:
414 static void cmos_init_hd(ISADevice
*s
, int type_ofs
, int info_ofs
,
415 int16_t cylinders
, int8_t heads
, int8_t sectors
)
417 rtc_set_memory(s
, type_ofs
, 47);
418 rtc_set_memory(s
, info_ofs
, cylinders
);
419 rtc_set_memory(s
, info_ofs
+ 1, cylinders
>> 8);
420 rtc_set_memory(s
, info_ofs
+ 2, heads
);
421 rtc_set_memory(s
, info_ofs
+ 3, 0xff);
422 rtc_set_memory(s
, info_ofs
+ 4, 0xff);
423 rtc_set_memory(s
, info_ofs
+ 5, 0xc0 | ((heads
> 8) << 3));
424 rtc_set_memory(s
, info_ofs
+ 6, cylinders
);
425 rtc_set_memory(s
, info_ofs
+ 7, cylinders
>> 8);
426 rtc_set_memory(s
, info_ofs
+ 8, sectors
);
429 /* convert boot_device letter to something recognizable by the bios */
430 static int boot_device2nibble(char boot_device
)
432 switch(boot_device
) {
435 return 0x01; /* floppy boot */
437 return 0x02; /* hard drive boot */
439 return 0x03; /* CD-ROM boot */
441 return 0x04; /* Network boot */
446 static void set_boot_dev(ISADevice
*s
, const char *boot_device
, Error
**errp
)
448 #define PC_MAX_BOOT_DEVICES 3
449 int nbds
, bds
[3] = { 0, };
452 nbds
= strlen(boot_device
);
453 if (nbds
> PC_MAX_BOOT_DEVICES
) {
454 error_setg(errp
, "Too many boot devices for PC");
457 for (i
= 0; i
< nbds
; i
++) {
458 bds
[i
] = boot_device2nibble(boot_device
[i
]);
460 error_setg(errp
, "Invalid boot device for PC: '%c'",
465 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
466 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
469 static void pc_boot_set(void *opaque
, const char *boot_device
, Error
**errp
)
471 set_boot_dev(opaque
, boot_device
, errp
);
474 static void pc_cmos_init_floppy(ISADevice
*rtc_state
, ISADevice
*floppy
)
477 FloppyDriveType fd_type
[2] = { FLOPPY_DRIVE_TYPE_NONE
,
478 FLOPPY_DRIVE_TYPE_NONE
};
482 for (i
= 0; i
< 2; i
++) {
483 fd_type
[i
] = isa_fdc_get_drive_type(floppy
, i
);
486 val
= (cmos_get_fd_drive_type(fd_type
[0]) << 4) |
487 cmos_get_fd_drive_type(fd_type
[1]);
488 rtc_set_memory(rtc_state
, 0x10, val
);
490 val
= rtc_get_memory(rtc_state
, REG_EQUIPMENT_BYTE
);
492 if (fd_type
[0] != FLOPPY_DRIVE_TYPE_NONE
) {
495 if (fd_type
[1] != FLOPPY_DRIVE_TYPE_NONE
) {
502 val
|= 0x01; /* 1 drive, ready for boot */
505 val
|= 0x41; /* 2 drives, ready for boot */
508 rtc_set_memory(rtc_state
, REG_EQUIPMENT_BYTE
, val
);
511 typedef struct pc_cmos_init_late_arg
{
512 ISADevice
*rtc_state
;
514 } pc_cmos_init_late_arg
;
516 typedef struct check_fdc_state
{
521 static int check_fdc(Object
*obj
, void *opaque
)
523 CheckFdcState
*state
= opaque
;
526 Error
*local_err
= NULL
;
528 fdc
= object_dynamic_cast(obj
, TYPE_ISA_FDC
);
533 iobase
= object_property_get_uint(obj
, "iobase", &local_err
);
534 if (local_err
|| iobase
!= 0x3f0) {
535 error_free(local_err
);
540 state
->multiple
= true;
542 state
->floppy
= ISA_DEVICE(obj
);
547 static const char * const fdc_container_path
[] = {
548 "/unattached", "/peripheral", "/peripheral-anon"
552 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers
555 ISADevice
*pc_find_fdc0(void)
559 CheckFdcState state
= { 0 };
561 for (i
= 0; i
< ARRAY_SIZE(fdc_container_path
); i
++) {
562 container
= container_get(qdev_get_machine(), fdc_container_path
[i
]);
563 object_child_foreach(container
, check_fdc
, &state
);
566 if (state
.multiple
) {
567 warn_report("multiple floppy disk controllers with "
568 "iobase=0x3f0 have been found");
569 error_printf("the one being picked for CMOS setup might not reflect "
576 static void pc_cmos_init_late(void *opaque
)
578 pc_cmos_init_late_arg
*arg
= opaque
;
579 ISADevice
*s
= arg
->rtc_state
;
581 int8_t heads
, sectors
;
586 if (arg
->idebus
[0] && ide_get_geometry(arg
->idebus
[0], 0,
587 &cylinders
, &heads
, §ors
) >= 0) {
588 cmos_init_hd(s
, 0x19, 0x1b, cylinders
, heads
, sectors
);
591 if (arg
->idebus
[0] && ide_get_geometry(arg
->idebus
[0], 1,
592 &cylinders
, &heads
, §ors
) >= 0) {
593 cmos_init_hd(s
, 0x1a, 0x24, cylinders
, heads
, sectors
);
596 rtc_set_memory(s
, 0x12, val
);
599 for (i
= 0; i
< 4; i
++) {
600 /* NOTE: ide_get_geometry() returns the physical
601 geometry. It is always such that: 1 <= sects <= 63, 1
602 <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
603 geometry can be different if a translation is done. */
604 if (arg
->idebus
[i
/ 2] &&
605 ide_get_geometry(arg
->idebus
[i
/ 2], i
% 2,
606 &cylinders
, &heads
, §ors
) >= 0) {
607 trans
= ide_get_bios_chs_trans(arg
->idebus
[i
/ 2], i
% 2) - 1;
608 assert((trans
& ~3) == 0);
609 val
|= trans
<< (i
* 2);
612 rtc_set_memory(s
, 0x39, val
);
614 pc_cmos_init_floppy(s
, pc_find_fdc0());
616 qemu_unregister_reset(pc_cmos_init_late
, opaque
);
619 void pc_cmos_init(PCMachineState
*pcms
,
620 BusState
*idebus0
, BusState
*idebus1
,
624 static pc_cmos_init_late_arg arg
;
625 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
627 /* various important CMOS locations needed by PC/Bochs bios */
630 /* base memory (first MiB) */
631 val
= MIN(x86ms
->below_4g_mem_size
/ KiB
, 640);
632 rtc_set_memory(s
, 0x15, val
);
633 rtc_set_memory(s
, 0x16, val
>> 8);
634 /* extended memory (next 64MiB) */
635 if (x86ms
->below_4g_mem_size
> 1 * MiB
) {
636 val
= (x86ms
->below_4g_mem_size
- 1 * MiB
) / KiB
;
642 rtc_set_memory(s
, 0x17, val
);
643 rtc_set_memory(s
, 0x18, val
>> 8);
644 rtc_set_memory(s
, 0x30, val
);
645 rtc_set_memory(s
, 0x31, val
>> 8);
646 /* memory between 16MiB and 4GiB */
647 if (x86ms
->below_4g_mem_size
> 16 * MiB
) {
648 val
= (x86ms
->below_4g_mem_size
- 16 * MiB
) / (64 * KiB
);
654 rtc_set_memory(s
, 0x34, val
);
655 rtc_set_memory(s
, 0x35, val
>> 8);
656 /* memory above 4GiB */
657 val
= x86ms
->above_4g_mem_size
/ 65536;
658 rtc_set_memory(s
, 0x5b, val
);
659 rtc_set_memory(s
, 0x5c, val
>> 8);
660 rtc_set_memory(s
, 0x5d, val
>> 16);
662 object_property_add_link(OBJECT(pcms
), "rtc_state",
664 (Object
**)&x86ms
->rtc
,
665 object_property_allow_set_link
,
666 OBJ_PROP_LINK_STRONG
);
667 object_property_set_link(OBJECT(pcms
), OBJECT(s
),
668 "rtc_state", &error_abort
);
670 set_boot_dev(s
, MACHINE(pcms
)->boot_order
, &error_fatal
);
673 val
|= 0x02; /* FPU is there */
674 val
|= 0x04; /* PS/2 mouse installed */
675 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
677 /* hard drives and FDC */
679 arg
.idebus
[0] = idebus0
;
680 arg
.idebus
[1] = idebus1
;
681 qemu_register_reset(pc_cmos_init_late
, &arg
);
684 static void handle_a20_line_change(void *opaque
, int irq
, int level
)
686 X86CPU
*cpu
= opaque
;
688 /* XXX: send to all CPUs ? */
689 /* XXX: add logic to handle multiple A20 line sources */
690 x86_cpu_set_a20(cpu
, level
);
693 #define NE2000_NB_MAX 6
695 static const int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360,
697 static const int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
699 void pc_init_ne2k_isa(ISABus
*bus
, NICInfo
*nd
)
701 static int nb_ne2k
= 0;
703 if (nb_ne2k
== NE2000_NB_MAX
)
705 isa_ne2000_init(bus
, ne2000_io
[nb_ne2k
],
706 ne2000_irq
[nb_ne2k
], nd
);
710 void pc_acpi_smi_interrupt(void *opaque
, int irq
, int level
)
712 X86CPU
*cpu
= opaque
;
715 cpu_interrupt(CPU(cpu
), CPU_INTERRUPT_SMI
);
720 * This function is very similar to smp_parse()
721 * in hw/core/machine.c but includes CPU die support.
723 void pc_smp_parse(MachineState
*ms
, QemuOpts
*opts
)
725 X86MachineState
*x86ms
= X86_MACHINE(ms
);
728 unsigned cpus
= qemu_opt_get_number(opts
, "cpus", 0);
729 unsigned sockets
= qemu_opt_get_number(opts
, "sockets", 0);
730 unsigned dies
= qemu_opt_get_number(opts
, "dies", 1);
731 unsigned cores
= qemu_opt_get_number(opts
, "cores", 0);
732 unsigned threads
= qemu_opt_get_number(opts
, "threads", 0);
734 /* compute missing values, prefer sockets over cores over threads */
735 if (cpus
== 0 || sockets
== 0) {
736 cores
= cores
> 0 ? cores
: 1;
737 threads
= threads
> 0 ? threads
: 1;
739 sockets
= sockets
> 0 ? sockets
: 1;
740 cpus
= cores
* threads
* dies
* sockets
;
743 qemu_opt_get_number(opts
, "maxcpus", cpus
);
744 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
* dies
);
746 } else if (cores
== 0) {
747 threads
= threads
> 0 ? threads
: 1;
748 cores
= cpus
/ (sockets
* dies
* threads
);
749 cores
= cores
> 0 ? cores
: 1;
750 } else if (threads
== 0) {
751 threads
= cpus
/ (cores
* dies
* sockets
);
752 threads
= threads
> 0 ? threads
: 1;
753 } else if (sockets
* dies
* cores
* threads
< cpus
) {
754 error_report("cpu topology: "
755 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) < "
757 sockets
, dies
, cores
, threads
, cpus
);
762 qemu_opt_get_number(opts
, "maxcpus", cpus
);
764 if (ms
->smp
.max_cpus
< cpus
) {
765 error_report("maxcpus must be equal to or greater than smp");
769 if (sockets
* dies
* cores
* threads
> ms
->smp
.max_cpus
) {
770 error_report("cpu topology: "
771 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) > "
773 sockets
, dies
, cores
, threads
,
778 if (sockets
* dies
* cores
* threads
!= ms
->smp
.max_cpus
) {
779 warn_report("Invalid CPU topology deprecated: "
780 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) "
782 sockets
, dies
, cores
, threads
,
787 ms
->smp
.cores
= cores
;
788 ms
->smp
.threads
= threads
;
789 ms
->smp
.sockets
= sockets
;
790 x86ms
->smp_dies
= dies
;
793 if (ms
->smp
.cpus
> 1) {
794 Error
*blocker
= NULL
;
795 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
796 replay_add_blocker(blocker
);
800 void pc_hot_add_cpu(MachineState
*ms
, const int64_t id
, Error
**errp
)
802 X86MachineState
*x86ms
= X86_MACHINE(ms
);
803 int64_t apic_id
= x86_cpu_apic_id_from_index(x86ms
, id
);
804 Error
*local_err
= NULL
;
807 error_setg(errp
, "Invalid CPU id: %" PRIi64
, id
);
811 if (apic_id
>= ACPI_CPU_HOTPLUG_ID_LIMIT
) {
812 error_setg(errp
, "Unable to add CPU: %" PRIi64
813 ", resulting APIC ID (%" PRIi64
") is too large",
819 x86_cpu_new(X86_MACHINE(ms
), apic_id
, &local_err
);
821 error_propagate(errp
, local_err
);
826 static void rtc_set_cpus_count(ISADevice
*rtc
, uint16_t cpus_count
)
828 if (cpus_count
> 0xff) {
829 /* If the number of CPUs can't be represented in 8 bits, the
830 * BIOS must use "FW_CFG_NB_CPUS". Set RTC field to 0 just
831 * to make old BIOSes fail more predictably.
833 rtc_set_memory(rtc
, 0x5f, 0);
835 rtc_set_memory(rtc
, 0x5f, cpus_count
- 1);
840 void pc_machine_done(Notifier
*notifier
, void *data
)
842 PCMachineState
*pcms
= container_of(notifier
,
843 PCMachineState
, machine_done
);
844 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
845 PCIBus
*bus
= pcms
->bus
;
847 /* set the number of CPUs */
848 rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
853 QLIST_FOREACH(bus
, &bus
->child
, sibling
) {
854 /* look for expander root buses */
855 if (pci_bus_is_root(bus
)) {
859 if (extra_hosts
&& x86ms
->fw_cfg
) {
860 uint64_t *val
= g_malloc(sizeof(*val
));
861 *val
= cpu_to_le64(extra_hosts
);
862 fw_cfg_add_file(x86ms
->fw_cfg
,
863 "etc/extra-pci-roots", val
, sizeof(*val
));
869 fw_cfg_build_smbios(MACHINE(pcms
), x86ms
->fw_cfg
);
870 fw_cfg_build_feature_control(MACHINE(pcms
), x86ms
->fw_cfg
);
871 /* update FW_CFG_NB_CPUS to account for -device added CPUs */
872 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
875 if (x86ms
->apic_id_limit
> 255 && !xen_enabled()) {
876 IntelIOMMUState
*iommu
= INTEL_IOMMU_DEVICE(x86_iommu_get_default());
878 if (!iommu
|| !x86_iommu_ir_supported(X86_IOMMU_DEVICE(iommu
)) ||
879 iommu
->intr_eim
!= ON_OFF_AUTO_ON
) {
880 error_report("current -smp configuration requires "
881 "Extended Interrupt Mode enabled. "
882 "You can add an IOMMU using: "
883 "-device intel-iommu,intremap=on,eim=on");
889 void pc_guest_info_init(PCMachineState
*pcms
)
892 MachineState
*ms
= MACHINE(pcms
);
893 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
895 x86ms
->apic_xrupt_override
= kvm_allows_irq0_override();
896 pcms
->numa_nodes
= ms
->numa_state
->num_nodes
;
897 pcms
->node_mem
= g_malloc0(pcms
->numa_nodes
*
898 sizeof *pcms
->node_mem
);
899 for (i
= 0; i
< ms
->numa_state
->num_nodes
; i
++) {
900 pcms
->node_mem
[i
] = ms
->numa_state
->nodes
[i
].node_mem
;
903 pcms
->machine_done
.notify
= pc_machine_done
;
904 qemu_add_machine_init_done_notifier(&pcms
->machine_done
);
907 /* setup pci memory address space mapping into system address space */
908 void pc_pci_as_mapping_init(Object
*owner
, MemoryRegion
*system_memory
,
909 MemoryRegion
*pci_address_space
)
911 /* Set to lower priority than RAM */
912 memory_region_add_subregion_overlap(system_memory
, 0x0,
913 pci_address_space
, -1);
916 void xen_load_linux(PCMachineState
*pcms
)
920 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
921 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
923 assert(MACHINE(pcms
)->kernel_filename
!= NULL
);
925 fw_cfg
= fw_cfg_init_io(FW_CFG_IO_BASE
);
926 fw_cfg_add_i16(fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
929 x86_load_linux(x86ms
, fw_cfg
, pcmc
->acpi_data_size
,
930 pcmc
->pvh_enabled
, pcmc
->linuxboot_dma_enabled
);
931 for (i
= 0; i
< nb_option_roms
; i
++) {
932 assert(!strcmp(option_rom
[i
].name
, "linuxboot.bin") ||
933 !strcmp(option_rom
[i
].name
, "linuxboot_dma.bin") ||
934 !strcmp(option_rom
[i
].name
, "pvh.bin") ||
935 !strcmp(option_rom
[i
].name
, "multiboot.bin"));
936 rom_add_option(option_rom
[i
].name
, option_rom
[i
].bootindex
);
938 x86ms
->fw_cfg
= fw_cfg
;
941 void pc_memory_init(PCMachineState
*pcms
,
942 MemoryRegion
*system_memory
,
943 MemoryRegion
*rom_memory
,
944 MemoryRegion
**ram_memory
)
947 MemoryRegion
*option_rom_mr
;
948 MemoryRegion
*ram_below_4g
, *ram_above_4g
;
950 MachineState
*machine
= MACHINE(pcms
);
951 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
952 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
953 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
955 assert(machine
->ram_size
== x86ms
->below_4g_mem_size
+
956 x86ms
->above_4g_mem_size
);
958 linux_boot
= (machine
->kernel_filename
!= NULL
);
961 * Split single memory region and use aliases to address portions of it,
962 * done for backwards compatibility with older qemus.
964 *ram_memory
= machine
->ram
;
965 ram_below_4g
= g_malloc(sizeof(*ram_below_4g
));
966 memory_region_init_alias(ram_below_4g
, NULL
, "ram-below-4g", machine
->ram
,
967 0, x86ms
->below_4g_mem_size
);
968 memory_region_add_subregion(system_memory
, 0, ram_below_4g
);
969 e820_add_entry(0, x86ms
->below_4g_mem_size
, E820_RAM
);
970 if (x86ms
->above_4g_mem_size
> 0) {
971 ram_above_4g
= g_malloc(sizeof(*ram_above_4g
));
972 memory_region_init_alias(ram_above_4g
, NULL
, "ram-above-4g",
974 x86ms
->below_4g_mem_size
,
975 x86ms
->above_4g_mem_size
);
976 memory_region_add_subregion(system_memory
, 0x100000000ULL
,
978 e820_add_entry(0x100000000ULL
, x86ms
->above_4g_mem_size
, E820_RAM
);
981 if (!pcmc
->has_reserved_memory
&&
982 (machine
->ram_slots
||
983 (machine
->maxram_size
> machine
->ram_size
))) {
985 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s",
990 /* always allocate the device memory information */
991 machine
->device_memory
= g_malloc0(sizeof(*machine
->device_memory
));
993 /* initialize device memory address space */
994 if (pcmc
->has_reserved_memory
&&
995 (machine
->ram_size
< machine
->maxram_size
)) {
996 ram_addr_t device_mem_size
= machine
->maxram_size
- machine
->ram_size
;
998 if (machine
->ram_slots
> ACPI_MAX_RAM_SLOTS
) {
999 error_report("unsupported amount of memory slots: %"PRIu64
,
1000 machine
->ram_slots
);
1004 if (QEMU_ALIGN_UP(machine
->maxram_size
,
1005 TARGET_PAGE_SIZE
) != machine
->maxram_size
) {
1006 error_report("maximum memory size must by aligned to multiple of "
1007 "%d bytes", TARGET_PAGE_SIZE
);
1011 machine
->device_memory
->base
=
1012 ROUND_UP(0x100000000ULL
+ x86ms
->above_4g_mem_size
, 1 * GiB
);
1014 if (pcmc
->enforce_aligned_dimm
) {
1015 /* size device region assuming 1G page max alignment per slot */
1016 device_mem_size
+= (1 * GiB
) * machine
->ram_slots
;
1019 if ((machine
->device_memory
->base
+ device_mem_size
) <
1021 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT
,
1022 machine
->maxram_size
);
1026 memory_region_init(&machine
->device_memory
->mr
, OBJECT(pcms
),
1027 "device-memory", device_mem_size
);
1028 memory_region_add_subregion(system_memory
, machine
->device_memory
->base
,
1029 &machine
->device_memory
->mr
);
1032 /* Initialize PC system firmware */
1033 pc_system_firmware_init(pcms
, rom_memory
);
1035 option_rom_mr
= g_malloc(sizeof(*option_rom_mr
));
1036 memory_region_init_ram(option_rom_mr
, NULL
, "pc.rom", PC_ROM_SIZE
,
1038 if (pcmc
->pci_enabled
) {
1039 memory_region_set_readonly(option_rom_mr
, true);
1041 memory_region_add_subregion_overlap(rom_memory
,
1046 fw_cfg
= fw_cfg_arch_create(machine
,
1047 x86ms
->boot_cpus
, x86ms
->apic_id_limit
);
1051 if (pcmc
->has_reserved_memory
&& machine
->device_memory
->base
) {
1052 uint64_t *val
= g_malloc(sizeof(*val
));
1053 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
1054 uint64_t res_mem_end
= machine
->device_memory
->base
;
1056 if (!pcmc
->broken_reserved_end
) {
1057 res_mem_end
+= memory_region_size(&machine
->device_memory
->mr
);
1059 *val
= cpu_to_le64(ROUND_UP(res_mem_end
, 1 * GiB
));
1060 fw_cfg_add_file(fw_cfg
, "etc/reserved-memory-end", val
, sizeof(*val
));
1064 x86_load_linux(x86ms
, fw_cfg
, pcmc
->acpi_data_size
,
1065 pcmc
->pvh_enabled
, pcmc
->linuxboot_dma_enabled
);
1068 for (i
= 0; i
< nb_option_roms
; i
++) {
1069 rom_add_option(option_rom
[i
].name
, option_rom
[i
].bootindex
);
1071 x86ms
->fw_cfg
= fw_cfg
;
1073 /* Init default IOAPIC address space */
1074 x86ms
->ioapic_as
= &address_space_memory
;
1076 /* Init ACPI memory hotplug IO base address */
1077 pcms
->memhp_io_base
= ACPI_MEMORY_HOTPLUG_BASE
;
1081 * The 64bit pci hole starts after "above 4G RAM" and
1082 * potentially the space reserved for memory hotplug.
1084 uint64_t pc_pci_hole64_start(void)
1086 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
1087 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
1088 MachineState
*ms
= MACHINE(pcms
);
1089 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
1090 uint64_t hole64_start
= 0;
1092 if (pcmc
->has_reserved_memory
&& ms
->device_memory
->base
) {
1093 hole64_start
= ms
->device_memory
->base
;
1094 if (!pcmc
->broken_reserved_end
) {
1095 hole64_start
+= memory_region_size(&ms
->device_memory
->mr
);
1098 hole64_start
= 0x100000000ULL
+ x86ms
->above_4g_mem_size
;
1101 return ROUND_UP(hole64_start
, 1 * GiB
);
1104 DeviceState
*pc_vga_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1106 DeviceState
*dev
= NULL
;
1108 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA
);
1110 PCIDevice
*pcidev
= pci_vga_init(pci_bus
);
1111 dev
= pcidev
? &pcidev
->qdev
: NULL
;
1112 } else if (isa_bus
) {
1113 ISADevice
*isadev
= isa_vga_init(isa_bus
);
1114 dev
= isadev
? DEVICE(isadev
) : NULL
;
1116 rom_reset_order_override();
1120 static const MemoryRegionOps ioport80_io_ops
= {
1121 .write
= ioport80_write
,
1122 .read
= ioport80_read
,
1123 .endianness
= DEVICE_NATIVE_ENDIAN
,
1125 .min_access_size
= 1,
1126 .max_access_size
= 1,
1130 static const MemoryRegionOps ioportF0_io_ops
= {
1131 .write
= ioportF0_write
,
1132 .read
= ioportF0_read
,
1133 .endianness
= DEVICE_NATIVE_ENDIAN
,
1135 .min_access_size
= 1,
1136 .max_access_size
= 1,
1140 static void pc_superio_init(ISABus
*isa_bus
, bool create_fdctrl
, bool no_vmport
)
1143 DriveInfo
*fd
[MAX_FD
];
1145 ISADevice
*i8042
, *port92
, *vmmouse
;
1147 serial_hds_isa_init(isa_bus
, 0, MAX_ISA_SERIAL_PORTS
);
1148 parallel_hds_isa_init(isa_bus
, MAX_PARALLEL_PORTS
);
1150 for (i
= 0; i
< MAX_FD
; i
++) {
1151 fd
[i
] = drive_get(IF_FLOPPY
, 0, i
);
1152 create_fdctrl
|= !!fd
[i
];
1154 if (create_fdctrl
) {
1155 fdctrl_init_isa(isa_bus
, fd
);
1158 i8042
= isa_create_simple(isa_bus
, "i8042");
1160 isa_create_simple(isa_bus
, TYPE_VMPORT
);
1161 vmmouse
= isa_try_new("vmmouse");
1166 object_property_set_link(OBJECT(vmmouse
), OBJECT(i8042
),
1167 "i8042", &error_abort
);
1168 isa_realize_and_unref(vmmouse
, isa_bus
, &error_fatal
);
1170 port92
= isa_create_simple(isa_bus
, TYPE_PORT92
);
1172 a20_line
= qemu_allocate_irqs(handle_a20_line_change
, first_cpu
, 2);
1173 i8042_setup_a20_line(i8042
, a20_line
[0]);
1174 qdev_connect_gpio_out_named(DEVICE(port92
),
1175 PORT92_A20_LINE
, 0, a20_line
[1]);
1179 void pc_basic_device_init(ISABus
*isa_bus
, qemu_irq
*gsi
,
1180 ISADevice
**rtc_state
,
1187 DeviceState
*hpet
= NULL
;
1188 int pit_isa_irq
= 0;
1189 qemu_irq pit_alt_irq
= NULL
;
1190 qemu_irq rtc_irq
= NULL
;
1191 ISADevice
*pit
= NULL
;
1192 MemoryRegion
*ioport80_io
= g_new(MemoryRegion
, 1);
1193 MemoryRegion
*ioportF0_io
= g_new(MemoryRegion
, 1);
1195 memory_region_init_io(ioport80_io
, NULL
, &ioport80_io_ops
, NULL
, "ioport80", 1);
1196 memory_region_add_subregion(isa_bus
->address_space_io
, 0x80, ioport80_io
);
1198 memory_region_init_io(ioportF0_io
, NULL
, &ioportF0_io_ops
, NULL
, "ioportF0", 1);
1199 memory_region_add_subregion(isa_bus
->address_space_io
, 0xf0, ioportF0_io
);
1202 * Check if an HPET shall be created.
1204 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1205 * when the HPET wants to take over. Thus we have to disable the latter.
1207 if (!no_hpet
&& (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1208 hpet
= qdev_try_new(TYPE_HPET
);
1210 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7
1211 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
1214 uint8_t compat
= object_property_get_uint(OBJECT(hpet
),
1217 qdev_prop_set_uint32(hpet
, HPET_INTCAP
, hpet_irqs
);
1219 sysbus_realize_and_unref(SYS_BUS_DEVICE(hpet
), &error_fatal
);
1220 sysbus_mmio_map(SYS_BUS_DEVICE(hpet
), 0, HPET_BASE
);
1222 for (i
= 0; i
< GSI_NUM_PINS
; i
++) {
1223 sysbus_connect_irq(SYS_BUS_DEVICE(hpet
), i
, gsi
[i
]);
1226 pit_alt_irq
= qdev_get_gpio_in(hpet
, HPET_LEGACY_PIT_INT
);
1227 rtc_irq
= qdev_get_gpio_in(hpet
, HPET_LEGACY_RTC_INT
);
1230 *rtc_state
= mc146818_rtc_init(isa_bus
, 2000, rtc_irq
);
1232 qemu_register_boot_set(pc_boot_set
, *rtc_state
);
1234 if (!xen_enabled() && has_pit
) {
1235 if (kvm_pit_in_kernel()) {
1236 pit
= kvm_pit_init(isa_bus
, 0x40);
1238 pit
= i8254_pit_init(isa_bus
, 0x40, pit_isa_irq
, pit_alt_irq
);
1241 /* connect PIT to output control line of the HPET */
1242 qdev_connect_gpio_out(hpet
, 0, qdev_get_gpio_in(DEVICE(pit
), 0));
1244 pcspk_init(isa_bus
, pit
);
1247 i8257_dma_init(isa_bus
, 0);
1250 pc_superio_init(isa_bus
, create_fdctrl
, no_vmport
);
1253 void pc_nic_init(PCMachineClass
*pcmc
, ISABus
*isa_bus
, PCIBus
*pci_bus
)
1257 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC
);
1258 for (i
= 0; i
< nb_nics
; i
++) {
1259 NICInfo
*nd
= &nd_table
[i
];
1260 const char *model
= nd
->model
? nd
->model
: pcmc
->default_nic_model
;
1262 if (g_str_equal(model
, "ne2k_isa")) {
1263 pc_init_ne2k_isa(isa_bus
, nd
);
1265 pci_nic_init_nofail(nd
, pci_bus
, model
, NULL
);
1268 rom_reset_order_override();
1271 void pc_i8259_create(ISABus
*isa_bus
, qemu_irq
*i8259_irqs
)
1275 if (kvm_pic_in_kernel()) {
1276 i8259
= kvm_i8259_init(isa_bus
);
1277 } else if (xen_enabled()) {
1278 i8259
= xen_interrupt_controller_init();
1280 i8259
= i8259_init(isa_bus
, x86_allocate_cpu_irq());
1283 for (size_t i
= 0; i
< ISA_NUM_IRQS
; i
++) {
1284 i8259_irqs
[i
] = i8259
[i
];
1290 static void pc_memory_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
1293 const PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1294 const PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
1295 const MachineState
*ms
= MACHINE(hotplug_dev
);
1296 const bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
1297 const uint64_t legacy_align
= TARGET_PAGE_SIZE
;
1298 Error
*local_err
= NULL
;
1301 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1302 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1303 * addition to cover this case.
1305 if (!pcms
->acpi_dev
|| !x86_machine_is_acpi_enabled(X86_MACHINE(pcms
))) {
1307 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1311 if (is_nvdimm
&& !ms
->nvdimms_state
->is_enabled
) {
1312 error_setg(errp
, "nvdimm is not enabled: missing 'nvdimm' in '-M'");
1316 hotplug_handler_pre_plug(pcms
->acpi_dev
, dev
, &local_err
);
1318 error_propagate(errp
, local_err
);
1322 pc_dimm_pre_plug(PC_DIMM(dev
), MACHINE(hotplug_dev
),
1323 pcmc
->enforce_aligned_dimm
? NULL
: &legacy_align
, errp
);
1326 static void pc_memory_plug(HotplugHandler
*hotplug_dev
,
1327 DeviceState
*dev
, Error
**errp
)
1329 Error
*local_err
= NULL
;
1330 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1331 MachineState
*ms
= MACHINE(hotplug_dev
);
1332 bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
1334 pc_dimm_plug(PC_DIMM(dev
), MACHINE(pcms
), &local_err
);
1340 nvdimm_plug(ms
->nvdimms_state
);
1343 hotplug_handler_plug(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
, &error_abort
);
1345 error_propagate(errp
, local_err
);
1348 static void pc_memory_unplug_request(HotplugHandler
*hotplug_dev
,
1349 DeviceState
*dev
, Error
**errp
)
1351 Error
*local_err
= NULL
;
1352 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1355 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1356 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1357 * addition to cover this case.
1359 if (!pcms
->acpi_dev
|| !x86_machine_is_acpi_enabled(X86_MACHINE(pcms
))) {
1360 error_setg(&local_err
,
1361 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1365 if (object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
)) {
1366 error_setg(&local_err
,
1367 "nvdimm device hot unplug is not supported yet.");
1371 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
,
1374 error_propagate(errp
, local_err
);
1377 static void pc_memory_unplug(HotplugHandler
*hotplug_dev
,
1378 DeviceState
*dev
, Error
**errp
)
1380 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1381 Error
*local_err
= NULL
;
1383 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
, &local_err
);
1388 pc_dimm_unplug(PC_DIMM(dev
), MACHINE(pcms
));
1389 qdev_unrealize(dev
);
1391 error_propagate(errp
, local_err
);
1394 static int pc_apic_cmp(const void *a
, const void *b
)
1396 CPUArchId
*apic_a
= (CPUArchId
*)a
;
1397 CPUArchId
*apic_b
= (CPUArchId
*)b
;
1399 return apic_a
->arch_id
- apic_b
->arch_id
;
1402 /* returns pointer to CPUArchId descriptor that matches CPU's apic_id
1403 * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
1404 * entry corresponding to CPU's apic_id returns NULL.
1406 static CPUArchId
*pc_find_cpu_slot(MachineState
*ms
, uint32_t id
, int *idx
)
1408 CPUArchId apic_id
, *found_cpu
;
1410 apic_id
.arch_id
= id
;
1411 found_cpu
= bsearch(&apic_id
, ms
->possible_cpus
->cpus
,
1412 ms
->possible_cpus
->len
, sizeof(*ms
->possible_cpus
->cpus
),
1414 if (found_cpu
&& idx
) {
1415 *idx
= found_cpu
- ms
->possible_cpus
->cpus
;
1420 static void pc_cpu_plug(HotplugHandler
*hotplug_dev
,
1421 DeviceState
*dev
, Error
**errp
)
1423 CPUArchId
*found_cpu
;
1424 Error
*local_err
= NULL
;
1425 X86CPU
*cpu
= X86_CPU(dev
);
1426 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1427 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
1429 if (pcms
->acpi_dev
) {
1430 hotplug_handler_plug(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
, &local_err
);
1436 /* increment the number of CPUs */
1439 rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
1441 if (x86ms
->fw_cfg
) {
1442 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
1445 found_cpu
= pc_find_cpu_slot(MACHINE(pcms
), cpu
->apic_id
, NULL
);
1446 found_cpu
->cpu
= OBJECT(dev
);
1448 error_propagate(errp
, local_err
);
1450 static void pc_cpu_unplug_request_cb(HotplugHandler
*hotplug_dev
,
1451 DeviceState
*dev
, Error
**errp
)
1454 Error
*local_err
= NULL
;
1455 X86CPU
*cpu
= X86_CPU(dev
);
1456 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1458 if (!pcms
->acpi_dev
) {
1459 error_setg(&local_err
, "CPU hot unplug not supported without ACPI");
1463 pc_find_cpu_slot(MACHINE(pcms
), cpu
->apic_id
, &idx
);
1466 error_setg(&local_err
, "Boot CPU is unpluggable");
1470 hotplug_handler_unplug_request(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
,
1477 error_propagate(errp
, local_err
);
1481 static void pc_cpu_unplug_cb(HotplugHandler
*hotplug_dev
,
1482 DeviceState
*dev
, Error
**errp
)
1484 CPUArchId
*found_cpu
;
1485 Error
*local_err
= NULL
;
1486 X86CPU
*cpu
= X86_CPU(dev
);
1487 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1488 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
1490 hotplug_handler_unplug(HOTPLUG_HANDLER(pcms
->acpi_dev
), dev
, &local_err
);
1495 found_cpu
= pc_find_cpu_slot(MACHINE(pcms
), cpu
->apic_id
, NULL
);
1496 found_cpu
->cpu
= NULL
;
1497 qdev_unrealize(dev
);
1499 /* decrement the number of CPUs */
1501 /* Update the number of CPUs in CMOS */
1502 rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
1503 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
1505 error_propagate(errp
, local_err
);
1508 static void pc_cpu_pre_plug(HotplugHandler
*hotplug_dev
,
1509 DeviceState
*dev
, Error
**errp
)
1513 CPUArchId
*cpu_slot
;
1514 X86CPUTopoIDs topo_ids
;
1515 X86CPU
*cpu
= X86_CPU(dev
);
1516 CPUX86State
*env
= &cpu
->env
;
1517 MachineState
*ms
= MACHINE(hotplug_dev
);
1518 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1519 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
1520 unsigned int smp_cores
= ms
->smp
.cores
;
1521 unsigned int smp_threads
= ms
->smp
.threads
;
1522 X86CPUTopoInfo topo_info
;
1524 if(!object_dynamic_cast(OBJECT(cpu
), ms
->cpu_type
)) {
1525 error_setg(errp
, "Invalid CPU type, expected cpu type: '%s'",
1530 init_topo_info(&topo_info
, x86ms
);
1532 env
->nr_dies
= x86ms
->smp_dies
;
1533 env
->nr_nodes
= topo_info
.nodes_per_pkg
;
1534 env
->pkg_offset
= x86ms
->apicid_pkg_offset(&topo_info
);
1537 * If APIC ID is not set,
1538 * set it based on socket/die/core/thread properties.
1540 if (cpu
->apic_id
== UNASSIGNED_APIC_ID
) {
1541 int max_socket
= (ms
->smp
.max_cpus
- 1) /
1542 smp_threads
/ smp_cores
/ x86ms
->smp_dies
;
1545 * die-id was optional in QEMU 4.0 and older, so keep it optional
1546 * if there's only one die per socket.
1548 if (cpu
->die_id
< 0 && x86ms
->smp_dies
== 1) {
1552 if (cpu
->socket_id
< 0) {
1553 error_setg(errp
, "CPU socket-id is not set");
1555 } else if (cpu
->socket_id
> max_socket
) {
1556 error_setg(errp
, "Invalid CPU socket-id: %u must be in range 0:%u",
1557 cpu
->socket_id
, max_socket
);
1560 if (cpu
->die_id
< 0) {
1561 error_setg(errp
, "CPU die-id is not set");
1563 } else if (cpu
->die_id
> x86ms
->smp_dies
- 1) {
1564 error_setg(errp
, "Invalid CPU die-id: %u must be in range 0:%u",
1565 cpu
->die_id
, x86ms
->smp_dies
- 1);
1568 if (cpu
->core_id
< 0) {
1569 error_setg(errp
, "CPU core-id is not set");
1571 } else if (cpu
->core_id
> (smp_cores
- 1)) {
1572 error_setg(errp
, "Invalid CPU core-id: %u must be in range 0:%u",
1573 cpu
->core_id
, smp_cores
- 1);
1576 if (cpu
->thread_id
< 0) {
1577 error_setg(errp
, "CPU thread-id is not set");
1579 } else if (cpu
->thread_id
> (smp_threads
- 1)) {
1580 error_setg(errp
, "Invalid CPU thread-id: %u must be in range 0:%u",
1581 cpu
->thread_id
, smp_threads
- 1);
1585 topo_ids
.pkg_id
= cpu
->socket_id
;
1586 topo_ids
.die_id
= cpu
->die_id
;
1587 topo_ids
.core_id
= cpu
->core_id
;
1588 topo_ids
.smt_id
= cpu
->thread_id
;
1589 cpu
->apic_id
= x86ms
->apicid_from_topo_ids(&topo_info
, &topo_ids
);
1592 cpu_slot
= pc_find_cpu_slot(MACHINE(pcms
), cpu
->apic_id
, &idx
);
1594 MachineState
*ms
= MACHINE(pcms
);
1596 x86ms
->topo_ids_from_apicid(cpu
->apic_id
, &topo_info
, &topo_ids
);
1598 "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
1599 " APIC ID %" PRIu32
", valid index range 0:%d",
1600 topo_ids
.pkg_id
, topo_ids
.die_id
, topo_ids
.core_id
, topo_ids
.smt_id
,
1601 cpu
->apic_id
, ms
->possible_cpus
->len
- 1);
1605 if (cpu_slot
->cpu
) {
1606 error_setg(errp
, "CPU[%d] with APIC ID %" PRIu32
" exists",
1611 /* if 'address' properties socket-id/core-id/thread-id are not set, set them
1612 * so that machine_query_hotpluggable_cpus would show correct values
1614 /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
1615 * once -smp refactoring is complete and there will be CPU private
1616 * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
1617 x86ms
->topo_ids_from_apicid(cpu
->apic_id
, &topo_info
, &topo_ids
);
1618 if (cpu
->socket_id
!= -1 && cpu
->socket_id
!= topo_ids
.pkg_id
) {
1619 error_setg(errp
, "property socket-id: %u doesn't match set apic-id:"
1620 " 0x%x (socket-id: %u)", cpu
->socket_id
, cpu
->apic_id
,
1624 cpu
->socket_id
= topo_ids
.pkg_id
;
1626 if (cpu
->die_id
!= -1 && cpu
->die_id
!= topo_ids
.die_id
) {
1627 error_setg(errp
, "property die-id: %u doesn't match set apic-id:"
1628 " 0x%x (die-id: %u)", cpu
->die_id
, cpu
->apic_id
, topo_ids
.die_id
);
1631 cpu
->die_id
= topo_ids
.die_id
;
1633 if (cpu
->core_id
!= -1 && cpu
->core_id
!= topo_ids
.core_id
) {
1634 error_setg(errp
, "property core-id: %u doesn't match set apic-id:"
1635 " 0x%x (core-id: %u)", cpu
->core_id
, cpu
->apic_id
,
1639 cpu
->core_id
= topo_ids
.core_id
;
1641 if (cpu
->thread_id
!= -1 && cpu
->thread_id
!= topo_ids
.smt_id
) {
1642 error_setg(errp
, "property thread-id: %u doesn't match set apic-id:"
1643 " 0x%x (thread-id: %u)", cpu
->thread_id
, cpu
->apic_id
,
1647 cpu
->thread_id
= topo_ids
.smt_id
;
1649 if (hyperv_feat_enabled(cpu
, HYPERV_FEAT_VPINDEX
) &&
1650 !kvm_hv_vpindex_settable()) {
1651 error_setg(errp
, "kernel doesn't allow setting HyperV VP_INDEX");
1656 cs
->cpu_index
= idx
;
1658 numa_cpu_pre_plug(cpu_slot
, dev
, errp
);
1661 static void pc_virtio_pmem_pci_pre_plug(HotplugHandler
*hotplug_dev
,
1662 DeviceState
*dev
, Error
**errp
)
1664 HotplugHandler
*hotplug_dev2
= qdev_get_bus_hotplug_handler(dev
);
1665 Error
*local_err
= NULL
;
1667 if (!hotplug_dev2
) {
1669 * Without a bus hotplug handler, we cannot control the plug/unplug
1670 * order. This should never be the case on x86, however better add
1673 error_setg(errp
, "virtio-pmem-pci not supported on this bus.");
1677 * First, see if we can plug this memory device at all. If that
1678 * succeeds, branch of to the actual hotplug handler.
1680 memory_device_pre_plug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
), NULL
,
1683 hotplug_handler_pre_plug(hotplug_dev2
, dev
, &local_err
);
1685 error_propagate(errp
, local_err
);
1688 static void pc_virtio_pmem_pci_plug(HotplugHandler
*hotplug_dev
,
1689 DeviceState
*dev
, Error
**errp
)
1691 HotplugHandler
*hotplug_dev2
= qdev_get_bus_hotplug_handler(dev
);
1692 Error
*local_err
= NULL
;
1695 * Plug the memory device first and then branch off to the actual
1696 * hotplug handler. If that one fails, we can easily undo the memory
1699 memory_device_plug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
));
1700 hotplug_handler_plug(hotplug_dev2
, dev
, &local_err
);
1702 memory_device_unplug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
));
1704 error_propagate(errp
, local_err
);
1707 static void pc_virtio_pmem_pci_unplug_request(HotplugHandler
*hotplug_dev
,
1708 DeviceState
*dev
, Error
**errp
)
1710 /* We don't support virtio pmem hot unplug */
1711 error_setg(errp
, "virtio pmem device unplug not supported.");
1714 static void pc_virtio_pmem_pci_unplug(HotplugHandler
*hotplug_dev
,
1715 DeviceState
*dev
, Error
**errp
)
1717 /* We don't support virtio pmem hot unplug */
1720 static void pc_machine_device_pre_plug_cb(HotplugHandler
*hotplug_dev
,
1721 DeviceState
*dev
, Error
**errp
)
1723 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1724 pc_memory_pre_plug(hotplug_dev
, dev
, errp
);
1725 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1726 pc_cpu_pre_plug(hotplug_dev
, dev
, errp
);
1727 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
)) {
1728 pc_virtio_pmem_pci_pre_plug(hotplug_dev
, dev
, errp
);
1732 static void pc_machine_device_plug_cb(HotplugHandler
*hotplug_dev
,
1733 DeviceState
*dev
, Error
**errp
)
1735 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1736 pc_memory_plug(hotplug_dev
, dev
, errp
);
1737 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1738 pc_cpu_plug(hotplug_dev
, dev
, errp
);
1739 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
)) {
1740 pc_virtio_pmem_pci_plug(hotplug_dev
, dev
, errp
);
1744 static void pc_machine_device_unplug_request_cb(HotplugHandler
*hotplug_dev
,
1745 DeviceState
*dev
, Error
**errp
)
1747 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1748 pc_memory_unplug_request(hotplug_dev
, dev
, errp
);
1749 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1750 pc_cpu_unplug_request_cb(hotplug_dev
, dev
, errp
);
1751 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
)) {
1752 pc_virtio_pmem_pci_unplug_request(hotplug_dev
, dev
, errp
);
1754 error_setg(errp
, "acpi: device unplug request for not supported device"
1755 " type: %s", object_get_typename(OBJECT(dev
)));
1759 static void pc_machine_device_unplug_cb(HotplugHandler
*hotplug_dev
,
1760 DeviceState
*dev
, Error
**errp
)
1762 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1763 pc_memory_unplug(hotplug_dev
, dev
, errp
);
1764 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1765 pc_cpu_unplug_cb(hotplug_dev
, dev
, errp
);
1766 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
)) {
1767 pc_virtio_pmem_pci_unplug(hotplug_dev
, dev
, errp
);
1769 error_setg(errp
, "acpi: device unplug for not supported device"
1770 " type: %s", object_get_typename(OBJECT(dev
)));
1774 static HotplugHandler
*pc_get_hotplug_handler(MachineState
*machine
,
1777 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
) ||
1778 object_dynamic_cast(OBJECT(dev
), TYPE_CPU
) ||
1779 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
)) {
1780 return HOTPLUG_HANDLER(machine
);
1787 pc_machine_get_device_memory_region_size(Object
*obj
, Visitor
*v
,
1788 const char *name
, void *opaque
,
1791 MachineState
*ms
= MACHINE(obj
);
1794 if (ms
->device_memory
) {
1795 value
= memory_region_size(&ms
->device_memory
->mr
);
1798 visit_type_int(v
, name
, &value
, errp
);
1801 static void pc_machine_get_vmport(Object
*obj
, Visitor
*v
, const char *name
,
1802 void *opaque
, Error
**errp
)
1804 PCMachineState
*pcms
= PC_MACHINE(obj
);
1805 OnOffAuto vmport
= pcms
->vmport
;
1807 visit_type_OnOffAuto(v
, name
, &vmport
, errp
);
1810 static void pc_machine_set_vmport(Object
*obj
, Visitor
*v
, const char *name
,
1811 void *opaque
, Error
**errp
)
1813 PCMachineState
*pcms
= PC_MACHINE(obj
);
1815 visit_type_OnOffAuto(v
, name
, &pcms
->vmport
, errp
);
1818 static bool pc_machine_get_smbus(Object
*obj
, Error
**errp
)
1820 PCMachineState
*pcms
= PC_MACHINE(obj
);
1822 return pcms
->smbus_enabled
;
1825 static void pc_machine_set_smbus(Object
*obj
, bool value
, Error
**errp
)
1827 PCMachineState
*pcms
= PC_MACHINE(obj
);
1829 pcms
->smbus_enabled
= value
;
1832 static bool pc_machine_get_sata(Object
*obj
, Error
**errp
)
1834 PCMachineState
*pcms
= PC_MACHINE(obj
);
1836 return pcms
->sata_enabled
;
1839 static void pc_machine_set_sata(Object
*obj
, bool value
, Error
**errp
)
1841 PCMachineState
*pcms
= PC_MACHINE(obj
);
1843 pcms
->sata_enabled
= value
;
1846 static bool pc_machine_get_pit(Object
*obj
, Error
**errp
)
1848 PCMachineState
*pcms
= PC_MACHINE(obj
);
1850 return pcms
->pit_enabled
;
1853 static void pc_machine_set_pit(Object
*obj
, bool value
, Error
**errp
)
1855 PCMachineState
*pcms
= PC_MACHINE(obj
);
1857 pcms
->pit_enabled
= value
;
1860 static void pc_machine_get_max_ram_below_4g(Object
*obj
, Visitor
*v
,
1861 const char *name
, void *opaque
,
1864 PCMachineState
*pcms
= PC_MACHINE(obj
);
1865 uint64_t value
= pcms
->max_ram_below_4g
;
1867 visit_type_size(v
, name
, &value
, errp
);
1870 static void pc_machine_set_max_ram_below_4g(Object
*obj
, Visitor
*v
,
1871 const char *name
, void *opaque
,
1874 PCMachineState
*pcms
= PC_MACHINE(obj
);
1875 Error
*error
= NULL
;
1878 visit_type_size(v
, name
, &value
, &error
);
1880 error_propagate(errp
, error
);
1883 if (value
> 4 * GiB
) {
1885 "Machine option 'max-ram-below-4g=%"PRIu64
1886 "' expects size less than or equal to 4G", value
);
1887 error_propagate(errp
, error
);
1891 if (value
< 1 * MiB
) {
1892 warn_report("Only %" PRIu64
" bytes of RAM below the 4GiB boundary,"
1893 "BIOS may not work with less than 1MiB", value
);
1896 pcms
->max_ram_below_4g
= value
;
1899 static void pc_machine_initfn(Object
*obj
)
1901 PCMachineState
*pcms
= PC_MACHINE(obj
);
1903 #ifdef CONFIG_VMPORT
1904 pcms
->vmport
= ON_OFF_AUTO_AUTO
;
1906 pcms
->vmport
= ON_OFF_AUTO_OFF
;
1907 #endif /* CONFIG_VMPORT */
1908 pcms
->max_ram_below_4g
= 0; /* use default */
1909 /* acpi build is enabled by default if machine supports it */
1910 pcms
->acpi_build_enabled
= PC_MACHINE_GET_CLASS(pcms
)->has_acpi_build
;
1911 pcms
->smbus_enabled
= true;
1912 pcms
->sata_enabled
= true;
1913 pcms
->pit_enabled
= true;
1915 pc_system_flash_create(pcms
);
1918 static void pc_machine_reset(MachineState
*machine
)
1923 qemu_devices_reset();
1925 /* Reset APIC after devices have been reset to cancel
1926 * any changes that qemu_devices_reset() might have done.
1931 if (cpu
->apic_state
) {
1932 device_legacy_reset(cpu
->apic_state
);
1937 static void pc_machine_wakeup(MachineState
*machine
)
1939 cpu_synchronize_all_states();
1940 pc_machine_reset(machine
);
1941 cpu_synchronize_all_post_reset();
1944 static bool pc_hotplug_allowed(MachineState
*ms
, DeviceState
*dev
, Error
**errp
)
1946 X86IOMMUState
*iommu
= x86_iommu_get_default();
1947 IntelIOMMUState
*intel_iommu
;
1950 object_dynamic_cast((Object
*)iommu
, TYPE_INTEL_IOMMU_DEVICE
) &&
1951 object_dynamic_cast((Object
*)dev
, "vfio-pci")) {
1952 intel_iommu
= INTEL_IOMMU_DEVICE(iommu
);
1953 if (!intel_iommu
->caching_mode
) {
1954 error_setg(errp
, "Device assignment is not allowed without "
1955 "enabling caching-mode=on for Intel IOMMU.");
1963 static void pc_machine_class_init(ObjectClass
*oc
, void *data
)
1965 MachineClass
*mc
= MACHINE_CLASS(oc
);
1966 PCMachineClass
*pcmc
= PC_MACHINE_CLASS(oc
);
1967 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
1969 pcmc
->pci_enabled
= true;
1970 pcmc
->has_acpi_build
= true;
1971 pcmc
->rsdp_in_ram
= true;
1972 pcmc
->smbios_defaults
= true;
1973 pcmc
->smbios_uuid_encoded
= true;
1974 pcmc
->gigabyte_align
= true;
1975 pcmc
->has_reserved_memory
= true;
1976 pcmc
->kvmclock_enabled
= true;
1977 pcmc
->enforce_aligned_dimm
= true;
1978 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
1979 * to be used at the moment, 32K should be enough for a while. */
1980 pcmc
->acpi_data_size
= 0x20000 + 0x8000;
1981 pcmc
->linuxboot_dma_enabled
= true;
1982 pcmc
->pvh_enabled
= true;
1983 assert(!mc
->get_hotplug_handler
);
1984 mc
->get_hotplug_handler
= pc_get_hotplug_handler
;
1985 mc
->hotplug_allowed
= pc_hotplug_allowed
;
1986 mc
->cpu_index_to_instance_props
= x86_cpu_index_to_props
;
1987 mc
->get_default_cpu_node_id
= x86_get_default_cpu_node_id
;
1988 mc
->possible_cpu_arch_ids
= x86_possible_cpu_arch_ids
;
1989 mc
->auto_enable_numa_with_memhp
= true;
1990 mc
->has_hotpluggable_cpus
= true;
1991 mc
->default_boot_order
= "cad";
1992 mc
->hot_add_cpu
= pc_hot_add_cpu
;
1993 mc
->smp_parse
= pc_smp_parse
;
1994 mc
->block_default_type
= IF_IDE
;
1996 mc
->reset
= pc_machine_reset
;
1997 mc
->wakeup
= pc_machine_wakeup
;
1998 hc
->pre_plug
= pc_machine_device_pre_plug_cb
;
1999 hc
->plug
= pc_machine_device_plug_cb
;
2000 hc
->unplug_request
= pc_machine_device_unplug_request_cb
;
2001 hc
->unplug
= pc_machine_device_unplug_cb
;
2002 mc
->default_cpu_type
= TARGET_DEFAULT_CPU_TYPE
;
2003 mc
->nvdimm_supported
= true;
2004 mc
->numa_mem_supported
= true;
2005 mc
->default_ram_id
= "pc.ram";
2007 object_class_property_add(oc
, PC_MACHINE_MAX_RAM_BELOW_4G
, "size",
2008 pc_machine_get_max_ram_below_4g
, pc_machine_set_max_ram_below_4g
,
2010 object_class_property_set_description(oc
, PC_MACHINE_MAX_RAM_BELOW_4G
,
2011 "Maximum ram below the 4G boundary (32bit boundary)");
2013 object_class_property_add(oc
, PC_MACHINE_DEVMEM_REGION_SIZE
, "int",
2014 pc_machine_get_device_memory_region_size
, NULL
,
2017 object_class_property_add(oc
, PC_MACHINE_VMPORT
, "OnOffAuto",
2018 pc_machine_get_vmport
, pc_machine_set_vmport
,
2020 object_class_property_set_description(oc
, PC_MACHINE_VMPORT
,
2021 "Enable vmport (pc & q35)");
2023 object_class_property_add_bool(oc
, PC_MACHINE_SMBUS
,
2024 pc_machine_get_smbus
, pc_machine_set_smbus
);
2026 object_class_property_add_bool(oc
, PC_MACHINE_SATA
,
2027 pc_machine_get_sata
, pc_machine_set_sata
);
2029 object_class_property_add_bool(oc
, PC_MACHINE_PIT
,
2030 pc_machine_get_pit
, pc_machine_set_pit
);
2033 static const TypeInfo pc_machine_info
= {
2034 .name
= TYPE_PC_MACHINE
,
2035 .parent
= TYPE_X86_MACHINE
,
2037 .instance_size
= sizeof(PCMachineState
),
2038 .instance_init
= pc_machine_initfn
,
2039 .class_size
= sizeof(PCMachineClass
),
2040 .class_init
= pc_machine_class_init
,
2041 .interfaces
= (InterfaceInfo
[]) {
2042 { TYPE_HOTPLUG_HANDLER
},
2047 static void pc_machine_register_types(void)
2049 type_register_static(&pc_machine_info
);
2052 type_init(pc_machine_register_types
)