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/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"
98 #include CONFIG_DEVICES
100 GlobalProperty pc_compat_5_1
[] = {};
101 const size_t pc_compat_5_1_len
= G_N_ELEMENTS(pc_compat_5_1
);
103 GlobalProperty pc_compat_5_0
[] = {
105 const size_t pc_compat_5_0_len
= G_N_ELEMENTS(pc_compat_5_0
);
107 GlobalProperty pc_compat_4_2
[] = {
108 { "mch", "smbase-smram", "off" },
110 const size_t pc_compat_4_2_len
= G_N_ELEMENTS(pc_compat_4_2
);
112 GlobalProperty pc_compat_4_1
[] = {};
113 const size_t pc_compat_4_1_len
= G_N_ELEMENTS(pc_compat_4_1
);
115 GlobalProperty pc_compat_4_0
[] = {};
116 const size_t pc_compat_4_0_len
= G_N_ELEMENTS(pc_compat_4_0
);
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" },
141 const size_t pc_compat_3_1_len
= G_N_ELEMENTS(pc_compat_3_1
);
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" },
148 const size_t pc_compat_3_0_len
= G_N_ELEMENTS(pc_compat_3_0
);
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" },
156 const size_t pc_compat_2_12_len
= G_N_ELEMENTS(pc_compat_2_12
);
158 GlobalProperty pc_compat_2_11
[] = {
159 { TYPE_X86_CPU
, "x-migrate-smi-count", "off" },
160 { "Skylake-Server" "-" TYPE_X86_CPU
, "clflushopt", "off" },
162 const size_t pc_compat_2_11_len
= G_N_ELEMENTS(pc_compat_2_11
);
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" },
169 const size_t pc_compat_2_10_len
= G_N_ELEMENTS(pc_compat_2_10
);
171 GlobalProperty pc_compat_2_9
[] = {
172 { "mch", "extended-tseg-mbytes", "0" },
174 const size_t pc_compat_2_9_len
= G_N_ELEMENTS(pc_compat_2_9
);
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" },
183 const size_t pc_compat_2_8_len
= G_N_ELEMENTS(pc_compat_2_8
);
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" },
193 const size_t pc_compat_2_7_len
= G_N_ELEMENTS(pc_compat_2_7
);
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", }
201 const size_t pc_compat_2_6_len
= G_N_ELEMENTS(pc_compat_2_6
);
203 GlobalProperty pc_compat_2_5
[] = {};
204 const size_t pc_compat_2_5_len
= G_N_ELEMENTS(pc_compat_2_5
);
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", }
223 const size_t pc_compat_2_4_len
= G_N_ELEMENTS(pc_compat_2_4
);
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" },
248 const size_t pc_compat_2_3_len
= G_N_ELEMENTS(pc_compat_2_3
);
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" },
271 const size_t pc_compat_2_2_len
= G_N_ELEMENTS(pc_compat_2_2
);
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" },
278 const size_t pc_compat_2_1_len
= G_N_ELEMENTS(pc_compat_2_1
);
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" },
295 const size_t pc_compat_2_0_len
= G_N_ELEMENTS(pc_compat_2_0
);
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" },
303 const size_t pc_compat_1_7_len
= G_N_ELEMENTS(pc_compat_1_7
);
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" },
313 const size_t pc_compat_1_6_len
= G_N_ELEMENTS(pc_compat_1_6
);
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" },
328 const size_t pc_compat_1_5_len
= G_N_ELEMENTS(pc_compat_1_5
);
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" },
351 const size_t pc_compat_1_4_len
= G_N_ELEMENTS(pc_compat_1_4
);
353 GSIState
*pc_gsi_create(qemu_irq
**irqs
, bool pci_enabled
)
357 s
= g_new0(GSIState
, 1);
358 if (kvm_ioapic_in_kernel()) {
359 kvm_pc_setup_irq_routing(pci_enabled
);
361 *irqs
= qemu_allocate_irqs(gsi_handler
, s
, GSI_NUM_PINS
);
366 static void ioport80_write(void *opaque
, hwaddr addr
, uint64_t data
,
371 static uint64_t ioport80_read(void *opaque
, hwaddr addr
, unsigned size
)
373 return 0xffffffffffffffffULL
;
376 /* MSDOS compatibility mode FPU exception support */
377 static void ioportF0_write(void *opaque
, hwaddr addr
, uint64_t data
,
385 static uint64_t ioportF0_read(void *opaque
, hwaddr addr
, unsigned size
)
387 return 0xffffffffffffffffULL
;
390 /* PC cmos mappings */
392 #define REG_EQUIPMENT_BYTE 0x14
394 static void cmos_init_hd(ISADevice
*s
, int type_ofs
, int info_ofs
,
395 int16_t cylinders
, int8_t heads
, int8_t sectors
)
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
);
409 /* convert boot_device letter to something recognizable by the bios */
410 static int boot_device2nibble(char boot_device
)
412 switch(boot_device
) {
415 return 0x01; /* floppy boot */
417 return 0x02; /* hard drive boot */
419 return 0x03; /* CD-ROM boot */
421 return 0x04; /* Network boot */
426 static void set_boot_dev(ISADevice
*s
, const char *boot_device
, Error
**errp
)
428 #define PC_MAX_BOOT_DEVICES 3
429 int nbds
, bds
[3] = { 0, };
432 nbds
= strlen(boot_device
);
433 if (nbds
> PC_MAX_BOOT_DEVICES
) {
434 error_setg(errp
, "Too many boot devices for PC");
437 for (i
= 0; i
< nbds
; i
++) {
438 bds
[i
] = boot_device2nibble(boot_device
[i
]);
440 error_setg(errp
, "Invalid boot device for PC: '%c'",
445 rtc_set_memory(s
, 0x3d, (bds
[1] << 4) | bds
[0]);
446 rtc_set_memory(s
, 0x38, (bds
[2] << 4) | (fd_bootchk
? 0x0 : 0x1));
449 static void pc_boot_set(void *opaque
, const char *boot_device
, Error
**errp
)
451 set_boot_dev(opaque
, boot_device
, errp
);
454 static void pc_cmos_init_floppy(ISADevice
*rtc_state
, ISADevice
*floppy
)
457 FloppyDriveType fd_type
[2] = { FLOPPY_DRIVE_TYPE_NONE
,
458 FLOPPY_DRIVE_TYPE_NONE
};
462 for (i
= 0; i
< 2; i
++) {
463 fd_type
[i
] = isa_fdc_get_drive_type(floppy
, i
);
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
);
470 val
= rtc_get_memory(rtc_state
, REG_EQUIPMENT_BYTE
);
472 if (fd_type
[0] != FLOPPY_DRIVE_TYPE_NONE
) {
475 if (fd_type
[1] != FLOPPY_DRIVE_TYPE_NONE
) {
482 val
|= 0x01; /* 1 drive, ready for boot */
485 val
|= 0x41; /* 2 drives, ready for boot */
488 rtc_set_memory(rtc_state
, REG_EQUIPMENT_BYTE
, val
);
491 typedef struct pc_cmos_init_late_arg
{
492 ISADevice
*rtc_state
;
494 } pc_cmos_init_late_arg
;
496 typedef struct check_fdc_state
{
501 static int check_fdc(Object
*obj
, void *opaque
)
503 CheckFdcState
*state
= opaque
;
506 Error
*local_err
= NULL
;
508 fdc
= object_dynamic_cast(obj
, TYPE_ISA_FDC
);
513 iobase
= object_property_get_uint(obj
, "iobase", &local_err
);
514 if (local_err
|| iobase
!= 0x3f0) {
515 error_free(local_err
);
520 state
->multiple
= true;
522 state
->floppy
= ISA_DEVICE(obj
);
527 static const char * const fdc_container_path
[] = {
528 "/unattached", "/peripheral", "/peripheral-anon"
532 * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers
535 ISADevice
*pc_find_fdc0(void)
539 CheckFdcState state
= { 0 };
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
);
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 "
556 static void pc_cmos_init_late(void *opaque
)
558 pc_cmos_init_late_arg
*arg
= opaque
;
559 ISADevice
*s
= arg
->rtc_state
;
561 int8_t heads
, sectors
;
566 if (arg
->idebus
[0] && ide_get_geometry(arg
->idebus
[0], 0,
567 &cylinders
, &heads
, §ors
) >= 0) {
568 cmos_init_hd(s
, 0x19, 0x1b, cylinders
, heads
, sectors
);
571 if (arg
->idebus
[0] && ide_get_geometry(arg
->idebus
[0], 1,
572 &cylinders
, &heads
, §ors
) >= 0) {
573 cmos_init_hd(s
, 0x1a, 0x24, cylinders
, heads
, sectors
);
576 rtc_set_memory(s
, 0x12, val
);
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
, §ors
) >= 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);
592 rtc_set_memory(s
, 0x39, val
);
594 pc_cmos_init_floppy(s
, pc_find_fdc0());
596 qemu_unregister_reset(pc_cmos_init_late
, opaque
);
599 void pc_cmos_init(PCMachineState
*pcms
,
600 BusState
*idebus0
, BusState
*idebus1
,
604 static pc_cmos_init_late_arg arg
;
605 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
607 /* various important CMOS locations needed by PC/Bochs bios */
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
;
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
);
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);
642 object_property_add_link(OBJECT(pcms
), "rtc_state",
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
),
650 set_boot_dev(s
, MACHINE(pcms
)->boot_order
, &error_fatal
);
653 val
|= 0x02; /* FPU is there */
654 val
|= 0x04; /* PS/2 mouse installed */
655 rtc_set_memory(s
, REG_EQUIPMENT_BYTE
, val
);
657 /* hard drives and FDC */
659 arg
.idebus
[0] = idebus0
;
660 arg
.idebus
[1] = idebus1
;
661 qemu_register_reset(pc_cmos_init_late
, &arg
);
664 static void handle_a20_line_change(void *opaque
, int irq
, int level
)
666 X86CPU
*cpu
= opaque
;
668 /* XXX: send to all CPUs ? */
669 /* XXX: add logic to handle multiple A20 line sources */
670 x86_cpu_set_a20(cpu
, level
);
673 #define NE2000_NB_MAX 6
675 static const int ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360,
677 static const int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
679 void pc_init_ne2k_isa(ISABus
*bus
, NICInfo
*nd
)
681 static int nb_ne2k
= 0;
683 if (nb_ne2k
== NE2000_NB_MAX
)
685 isa_ne2000_init(bus
, ne2000_io
[nb_ne2k
],
686 ne2000_irq
[nb_ne2k
], nd
);
690 void pc_acpi_smi_interrupt(void *opaque
, int irq
, int level
)
692 X86CPU
*cpu
= opaque
;
695 cpu_interrupt(CPU(cpu
), CPU_INTERRUPT_SMI
);
700 * This function is very similar to smp_parse()
701 * in hw/core/machine.c but includes CPU die support.
703 void pc_smp_parse(MachineState
*ms
, QemuOpts
*opts
)
705 X86MachineState
*x86ms
= X86_MACHINE(ms
);
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);
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;
719 sockets
= sockets
> 0 ? sockets
: 1;
720 cpus
= cores
* threads
* dies
* sockets
;
723 qemu_opt_get_number(opts
, "maxcpus", cpus
);
724 sockets
= ms
->smp
.max_cpus
/ (cores
* threads
* dies
);
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) < "
737 sockets
, dies
, cores
, threads
, cpus
);
742 qemu_opt_get_number(opts
, "maxcpus", cpus
);
744 if (ms
->smp
.max_cpus
< cpus
) {
745 error_report("maxcpus must be equal to or greater than smp");
749 if (sockets
* dies
* cores
* threads
!= ms
->smp
.max_cpus
) {
750 error_report("Invalid CPU topology deprecated: "
751 "sockets (%u) * dies (%u) * cores (%u) * threads (%u) "
753 sockets
, dies
, cores
, threads
,
759 ms
->smp
.cores
= cores
;
760 ms
->smp
.threads
= threads
;
761 ms
->smp
.sockets
= sockets
;
762 x86ms
->smp_dies
= dies
;
765 if (ms
->smp
.cpus
> 1) {
766 Error
*blocker
= NULL
;
767 error_setg(&blocker
, QERR_REPLAY_NOT_SUPPORTED
, "smp");
768 replay_add_blocker(blocker
);
773 void pc_machine_done(Notifier
*notifier
, void *data
)
775 PCMachineState
*pcms
= container_of(notifier
,
776 PCMachineState
, machine_done
);
777 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
778 PCIBus
*bus
= pcms
->bus
;
780 /* set the number of CPUs */
781 x86_rtc_set_cpus_count(x86ms
->rtc
, x86ms
->boot_cpus
);
786 QLIST_FOREACH(bus
, &bus
->child
, sibling
) {
787 /* look for expander root buses */
788 if (pci_bus_is_root(bus
)) {
792 if (extra_hosts
&& x86ms
->fw_cfg
) {
793 uint64_t *val
= g_malloc(sizeof(*val
));
794 *val
= cpu_to_le64(extra_hosts
);
795 fw_cfg_add_file(x86ms
->fw_cfg
,
796 "etc/extra-pci-roots", val
, sizeof(*val
));
802 fw_cfg_build_smbios(MACHINE(pcms
), x86ms
->fw_cfg
);
803 fw_cfg_build_feature_control(MACHINE(pcms
), x86ms
->fw_cfg
);
804 /* update FW_CFG_NB_CPUS to account for -device added CPUs */
805 fw_cfg_modify_i16(x86ms
->fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
808 if (x86ms
->apic_id_limit
> 255 && !xen_enabled()) {
809 IntelIOMMUState
*iommu
= INTEL_IOMMU_DEVICE(x86_iommu_get_default());
811 if (!iommu
|| !x86_iommu_ir_supported(X86_IOMMU_DEVICE(iommu
)) ||
812 iommu
->intr_eim
!= ON_OFF_AUTO_ON
) {
813 error_report("current -smp configuration requires "
814 "Extended Interrupt Mode enabled. "
815 "You can add an IOMMU using: "
816 "-device intel-iommu,intremap=on,eim=on");
822 void pc_guest_info_init(PCMachineState
*pcms
)
825 MachineState
*ms
= MACHINE(pcms
);
826 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
828 x86ms
->apic_xrupt_override
= kvm_allows_irq0_override();
829 pcms
->numa_nodes
= ms
->numa_state
->num_nodes
;
830 pcms
->node_mem
= g_malloc0(pcms
->numa_nodes
*
831 sizeof *pcms
->node_mem
);
832 for (i
= 0; i
< ms
->numa_state
->num_nodes
; i
++) {
833 pcms
->node_mem
[i
] = ms
->numa_state
->nodes
[i
].node_mem
;
836 pcms
->machine_done
.notify
= pc_machine_done
;
837 qemu_add_machine_init_done_notifier(&pcms
->machine_done
);
840 /* setup pci memory address space mapping into system address space */
841 void pc_pci_as_mapping_init(Object
*owner
, MemoryRegion
*system_memory
,
842 MemoryRegion
*pci_address_space
)
844 /* Set to lower priority than RAM */
845 memory_region_add_subregion_overlap(system_memory
, 0x0,
846 pci_address_space
, -1);
849 void xen_load_linux(PCMachineState
*pcms
)
853 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
854 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
856 assert(MACHINE(pcms
)->kernel_filename
!= NULL
);
858 fw_cfg
= fw_cfg_init_io(FW_CFG_IO_BASE
);
859 fw_cfg_add_i16(fw_cfg
, FW_CFG_NB_CPUS
, x86ms
->boot_cpus
);
862 x86_load_linux(x86ms
, fw_cfg
, pcmc
->acpi_data_size
,
863 pcmc
->pvh_enabled
, pcmc
->linuxboot_dma_enabled
);
864 for (i
= 0; i
< nb_option_roms
; i
++) {
865 assert(!strcmp(option_rom
[i
].name
, "linuxboot.bin") ||
866 !strcmp(option_rom
[i
].name
, "linuxboot_dma.bin") ||
867 !strcmp(option_rom
[i
].name
, "pvh.bin") ||
868 !strcmp(option_rom
[i
].name
, "multiboot.bin"));
869 rom_add_option(option_rom
[i
].name
, option_rom
[i
].bootindex
);
871 x86ms
->fw_cfg
= fw_cfg
;
874 void pc_memory_init(PCMachineState
*pcms
,
875 MemoryRegion
*system_memory
,
876 MemoryRegion
*rom_memory
,
877 MemoryRegion
**ram_memory
)
880 MemoryRegion
*option_rom_mr
;
881 MemoryRegion
*ram_below_4g
, *ram_above_4g
;
883 MachineState
*machine
= MACHINE(pcms
);
884 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
885 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
886 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
888 assert(machine
->ram_size
== x86ms
->below_4g_mem_size
+
889 x86ms
->above_4g_mem_size
);
891 linux_boot
= (machine
->kernel_filename
!= NULL
);
894 * Split single memory region and use aliases to address portions of it,
895 * done for backwards compatibility with older qemus.
897 *ram_memory
= machine
->ram
;
898 ram_below_4g
= g_malloc(sizeof(*ram_below_4g
));
899 memory_region_init_alias(ram_below_4g
, NULL
, "ram-below-4g", machine
->ram
,
900 0, x86ms
->below_4g_mem_size
);
901 memory_region_add_subregion(system_memory
, 0, ram_below_4g
);
902 e820_add_entry(0, x86ms
->below_4g_mem_size
, E820_RAM
);
903 if (x86ms
->above_4g_mem_size
> 0) {
904 ram_above_4g
= g_malloc(sizeof(*ram_above_4g
));
905 memory_region_init_alias(ram_above_4g
, NULL
, "ram-above-4g",
907 x86ms
->below_4g_mem_size
,
908 x86ms
->above_4g_mem_size
);
909 memory_region_add_subregion(system_memory
, 0x100000000ULL
,
911 e820_add_entry(0x100000000ULL
, x86ms
->above_4g_mem_size
, E820_RAM
);
914 if (!pcmc
->has_reserved_memory
&&
915 (machine
->ram_slots
||
916 (machine
->maxram_size
> machine
->ram_size
))) {
918 error_report("\"-memory 'slots|maxmem'\" is not supported by: %s",
923 /* always allocate the device memory information */
924 machine
->device_memory
= g_malloc0(sizeof(*machine
->device_memory
));
926 /* initialize device memory address space */
927 if (pcmc
->has_reserved_memory
&&
928 (machine
->ram_size
< machine
->maxram_size
)) {
929 ram_addr_t device_mem_size
= machine
->maxram_size
- machine
->ram_size
;
931 if (machine
->ram_slots
> ACPI_MAX_RAM_SLOTS
) {
932 error_report("unsupported amount of memory slots: %"PRIu64
,
937 if (QEMU_ALIGN_UP(machine
->maxram_size
,
938 TARGET_PAGE_SIZE
) != machine
->maxram_size
) {
939 error_report("maximum memory size must by aligned to multiple of "
940 "%d bytes", TARGET_PAGE_SIZE
);
944 machine
->device_memory
->base
=
945 ROUND_UP(0x100000000ULL
+ x86ms
->above_4g_mem_size
, 1 * GiB
);
947 if (pcmc
->enforce_aligned_dimm
) {
948 /* size device region assuming 1G page max alignment per slot */
949 device_mem_size
+= (1 * GiB
) * machine
->ram_slots
;
952 if ((machine
->device_memory
->base
+ device_mem_size
) <
954 error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT
,
955 machine
->maxram_size
);
959 memory_region_init(&machine
->device_memory
->mr
, OBJECT(pcms
),
960 "device-memory", device_mem_size
);
961 memory_region_add_subregion(system_memory
, machine
->device_memory
->base
,
962 &machine
->device_memory
->mr
);
965 /* Initialize PC system firmware */
966 pc_system_firmware_init(pcms
, rom_memory
);
968 option_rom_mr
= g_malloc(sizeof(*option_rom_mr
));
969 memory_region_init_ram(option_rom_mr
, NULL
, "pc.rom", PC_ROM_SIZE
,
971 if (pcmc
->pci_enabled
) {
972 memory_region_set_readonly(option_rom_mr
, true);
974 memory_region_add_subregion_overlap(rom_memory
,
979 fw_cfg
= fw_cfg_arch_create(machine
,
980 x86ms
->boot_cpus
, x86ms
->apic_id_limit
);
984 if (pcmc
->has_reserved_memory
&& machine
->device_memory
->base
) {
985 uint64_t *val
= g_malloc(sizeof(*val
));
986 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
987 uint64_t res_mem_end
= machine
->device_memory
->base
;
989 if (!pcmc
->broken_reserved_end
) {
990 res_mem_end
+= memory_region_size(&machine
->device_memory
->mr
);
992 *val
= cpu_to_le64(ROUND_UP(res_mem_end
, 1 * GiB
));
993 fw_cfg_add_file(fw_cfg
, "etc/reserved-memory-end", val
, sizeof(*val
));
997 x86_load_linux(x86ms
, fw_cfg
, pcmc
->acpi_data_size
,
998 pcmc
->pvh_enabled
, pcmc
->linuxboot_dma_enabled
);
1001 for (i
= 0; i
< nb_option_roms
; i
++) {
1002 rom_add_option(option_rom
[i
].name
, option_rom
[i
].bootindex
);
1004 x86ms
->fw_cfg
= fw_cfg
;
1006 /* Init default IOAPIC address space */
1007 x86ms
->ioapic_as
= &address_space_memory
;
1009 /* Init ACPI memory hotplug IO base address */
1010 pcms
->memhp_io_base
= ACPI_MEMORY_HOTPLUG_BASE
;
1014 * The 64bit pci hole starts after "above 4G RAM" and
1015 * potentially the space reserved for memory hotplug.
1017 uint64_t pc_pci_hole64_start(void)
1019 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
1020 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
1021 MachineState
*ms
= MACHINE(pcms
);
1022 X86MachineState
*x86ms
= X86_MACHINE(pcms
);
1023 uint64_t hole64_start
= 0;
1025 if (pcmc
->has_reserved_memory
&& ms
->device_memory
->base
) {
1026 hole64_start
= ms
->device_memory
->base
;
1027 if (!pcmc
->broken_reserved_end
) {
1028 hole64_start
+= memory_region_size(&ms
->device_memory
->mr
);
1031 hole64_start
= 0x100000000ULL
+ x86ms
->above_4g_mem_size
;
1034 return ROUND_UP(hole64_start
, 1 * GiB
);
1037 DeviceState
*pc_vga_init(ISABus
*isa_bus
, PCIBus
*pci_bus
)
1039 DeviceState
*dev
= NULL
;
1041 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA
);
1043 PCIDevice
*pcidev
= pci_vga_init(pci_bus
);
1044 dev
= pcidev
? &pcidev
->qdev
: NULL
;
1045 } else if (isa_bus
) {
1046 ISADevice
*isadev
= isa_vga_init(isa_bus
);
1047 dev
= isadev
? DEVICE(isadev
) : NULL
;
1049 rom_reset_order_override();
1053 static const MemoryRegionOps ioport80_io_ops
= {
1054 .write
= ioport80_write
,
1055 .read
= ioport80_read
,
1056 .endianness
= DEVICE_NATIVE_ENDIAN
,
1058 .min_access_size
= 1,
1059 .max_access_size
= 1,
1063 static const MemoryRegionOps ioportF0_io_ops
= {
1064 .write
= ioportF0_write
,
1065 .read
= ioportF0_read
,
1066 .endianness
= DEVICE_NATIVE_ENDIAN
,
1068 .min_access_size
= 1,
1069 .max_access_size
= 1,
1073 static void pc_superio_init(ISABus
*isa_bus
, bool create_fdctrl
, bool no_vmport
)
1076 DriveInfo
*fd
[MAX_FD
];
1078 ISADevice
*fdc
, *i8042
, *port92
, *vmmouse
;
1080 serial_hds_isa_init(isa_bus
, 0, MAX_ISA_SERIAL_PORTS
);
1081 parallel_hds_isa_init(isa_bus
, MAX_PARALLEL_PORTS
);
1083 for (i
= 0; i
< MAX_FD
; i
++) {
1084 fd
[i
] = drive_get(IF_FLOPPY
, 0, i
);
1085 create_fdctrl
|= !!fd
[i
];
1087 if (create_fdctrl
) {
1088 fdc
= isa_new(TYPE_ISA_FDC
);
1090 isa_realize_and_unref(fdc
, isa_bus
, &error_fatal
);
1091 isa_fdc_init_drives(fdc
, fd
);
1095 i8042
= isa_create_simple(isa_bus
, "i8042");
1097 isa_create_simple(isa_bus
, TYPE_VMPORT
);
1098 vmmouse
= isa_try_new("vmmouse");
1103 object_property_set_link(OBJECT(vmmouse
), "i8042", OBJECT(i8042
),
1105 isa_realize_and_unref(vmmouse
, isa_bus
, &error_fatal
);
1107 port92
= isa_create_simple(isa_bus
, TYPE_PORT92
);
1109 a20_line
= qemu_allocate_irqs(handle_a20_line_change
, first_cpu
, 2);
1110 i8042_setup_a20_line(i8042
, a20_line
[0]);
1111 qdev_connect_gpio_out_named(DEVICE(port92
),
1112 PORT92_A20_LINE
, 0, a20_line
[1]);
1116 void pc_basic_device_init(struct PCMachineState
*pcms
,
1117 ISABus
*isa_bus
, qemu_irq
*gsi
,
1118 ISADevice
**rtc_state
,
1123 DeviceState
*hpet
= NULL
;
1124 int pit_isa_irq
= 0;
1125 qemu_irq pit_alt_irq
= NULL
;
1126 qemu_irq rtc_irq
= NULL
;
1127 ISADevice
*pit
= NULL
;
1128 MemoryRegion
*ioport80_io
= g_new(MemoryRegion
, 1);
1129 MemoryRegion
*ioportF0_io
= g_new(MemoryRegion
, 1);
1131 memory_region_init_io(ioport80_io
, NULL
, &ioport80_io_ops
, NULL
, "ioport80", 1);
1132 memory_region_add_subregion(isa_bus
->address_space_io
, 0x80, ioport80_io
);
1134 memory_region_init_io(ioportF0_io
, NULL
, &ioportF0_io_ops
, NULL
, "ioportF0", 1);
1135 memory_region_add_subregion(isa_bus
->address_space_io
, 0xf0, ioportF0_io
);
1138 * Check if an HPET shall be created.
1140 * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
1141 * when the HPET wants to take over. Thus we have to disable the latter.
1143 if (!no_hpet
&& (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
1144 hpet
= qdev_try_new(TYPE_HPET
);
1146 /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7
1147 * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23,
1150 uint8_t compat
= object_property_get_uint(OBJECT(hpet
),
1153 qdev_prop_set_uint32(hpet
, HPET_INTCAP
, hpet_irqs
);
1155 sysbus_realize_and_unref(SYS_BUS_DEVICE(hpet
), &error_fatal
);
1156 sysbus_mmio_map(SYS_BUS_DEVICE(hpet
), 0, HPET_BASE
);
1158 for (i
= 0; i
< GSI_NUM_PINS
; i
++) {
1159 sysbus_connect_irq(SYS_BUS_DEVICE(hpet
), i
, gsi
[i
]);
1162 pit_alt_irq
= qdev_get_gpio_in(hpet
, HPET_LEGACY_PIT_INT
);
1163 rtc_irq
= qdev_get_gpio_in(hpet
, HPET_LEGACY_RTC_INT
);
1166 *rtc_state
= mc146818_rtc_init(isa_bus
, 2000, rtc_irq
);
1168 qemu_register_boot_set(pc_boot_set
, *rtc_state
);
1170 if (!xen_enabled() && pcms
->pit_enabled
) {
1171 if (kvm_pit_in_kernel()) {
1172 pit
= kvm_pit_init(isa_bus
, 0x40);
1174 pit
= i8254_pit_init(isa_bus
, 0x40, pit_isa_irq
, pit_alt_irq
);
1177 /* connect PIT to output control line of the HPET */
1178 qdev_connect_gpio_out(hpet
, 0, qdev_get_gpio_in(DEVICE(pit
), 0));
1180 pcspk_init(pcms
->pcspk
, isa_bus
, pit
);
1183 i8257_dma_init(isa_bus
, 0);
1186 pc_superio_init(isa_bus
, create_fdctrl
, pcms
->vmport
!= ON_OFF_AUTO_ON
);
1189 void pc_nic_init(PCMachineClass
*pcmc
, ISABus
*isa_bus
, PCIBus
*pci_bus
)
1193 rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC
);
1194 for (i
= 0; i
< nb_nics
; i
++) {
1195 NICInfo
*nd
= &nd_table
[i
];
1196 const char *model
= nd
->model
? nd
->model
: pcmc
->default_nic_model
;
1198 if (g_str_equal(model
, "ne2k_isa")) {
1199 pc_init_ne2k_isa(isa_bus
, nd
);
1201 pci_nic_init_nofail(nd
, pci_bus
, model
, NULL
);
1204 rom_reset_order_override();
1207 void pc_i8259_create(ISABus
*isa_bus
, qemu_irq
*i8259_irqs
)
1211 if (kvm_pic_in_kernel()) {
1212 i8259
= kvm_i8259_init(isa_bus
);
1213 } else if (xen_enabled()) {
1214 i8259
= xen_interrupt_controller_init();
1216 i8259
= i8259_init(isa_bus
, x86_allocate_cpu_irq());
1219 for (size_t i
= 0; i
< ISA_NUM_IRQS
; i
++) {
1220 i8259_irqs
[i
] = i8259
[i
];
1226 static void pc_memory_pre_plug(HotplugHandler
*hotplug_dev
, DeviceState
*dev
,
1229 const PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1230 const X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
1231 const PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
1232 const MachineState
*ms
= MACHINE(hotplug_dev
);
1233 const bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
1234 const uint64_t legacy_align
= TARGET_PAGE_SIZE
;
1235 Error
*local_err
= NULL
;
1238 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1239 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1240 * addition to cover this case.
1242 if (!x86ms
->acpi_dev
|| !x86_machine_is_acpi_enabled(x86ms
)) {
1244 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1248 if (is_nvdimm
&& !ms
->nvdimms_state
->is_enabled
) {
1249 error_setg(errp
, "nvdimm is not enabled: missing 'nvdimm' in '-M'");
1253 hotplug_handler_pre_plug(x86ms
->acpi_dev
, dev
, &local_err
);
1255 error_propagate(errp
, local_err
);
1259 pc_dimm_pre_plug(PC_DIMM(dev
), MACHINE(hotplug_dev
),
1260 pcmc
->enforce_aligned_dimm
? NULL
: &legacy_align
, errp
);
1263 static void pc_memory_plug(HotplugHandler
*hotplug_dev
,
1264 DeviceState
*dev
, Error
**errp
)
1266 Error
*local_err
= NULL
;
1267 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1268 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
1269 MachineState
*ms
= MACHINE(hotplug_dev
);
1270 bool is_nvdimm
= object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
);
1272 pc_dimm_plug(PC_DIMM(dev
), MACHINE(pcms
), &local_err
);
1278 nvdimm_plug(ms
->nvdimms_state
);
1281 hotplug_handler_plug(x86ms
->acpi_dev
, dev
, &error_abort
);
1283 error_propagate(errp
, local_err
);
1286 static void pc_memory_unplug_request(HotplugHandler
*hotplug_dev
,
1287 DeviceState
*dev
, Error
**errp
)
1289 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
1292 * When -no-acpi is used with Q35 machine type, no ACPI is built,
1293 * but pcms->acpi_dev is still created. Check !acpi_enabled in
1294 * addition to cover this case.
1296 if (!x86ms
->acpi_dev
|| !x86_machine_is_acpi_enabled(x86ms
)) {
1298 "memory hotplug is not enabled: missing acpi device or acpi disabled");
1302 if (object_dynamic_cast(OBJECT(dev
), TYPE_NVDIMM
)) {
1303 error_setg(errp
, "nvdimm device hot unplug is not supported yet.");
1307 hotplug_handler_unplug_request(x86ms
->acpi_dev
, dev
,
1311 static void pc_memory_unplug(HotplugHandler
*hotplug_dev
,
1312 DeviceState
*dev
, Error
**errp
)
1314 PCMachineState
*pcms
= PC_MACHINE(hotplug_dev
);
1315 X86MachineState
*x86ms
= X86_MACHINE(hotplug_dev
);
1316 Error
*local_err
= NULL
;
1318 hotplug_handler_unplug(x86ms
->acpi_dev
, dev
, &local_err
);
1323 pc_dimm_unplug(PC_DIMM(dev
), MACHINE(pcms
));
1324 qdev_unrealize(dev
);
1326 error_propagate(errp
, local_err
);
1329 static void pc_virtio_md_pci_pre_plug(HotplugHandler
*hotplug_dev
,
1330 DeviceState
*dev
, Error
**errp
)
1332 HotplugHandler
*hotplug_dev2
= qdev_get_bus_hotplug_handler(dev
);
1333 Error
*local_err
= NULL
;
1335 if (!hotplug_dev2
&& dev
->hotplugged
) {
1337 * Without a bus hotplug handler, we cannot control the plug/unplug
1338 * order. We should never reach this point when hotplugging on x86,
1339 * however, better add a safety net.
1341 error_setg(errp
, "hotplug of virtio based memory devices not supported"
1346 * First, see if we can plug this memory device at all. If that
1347 * succeeds, branch of to the actual hotplug handler.
1349 memory_device_pre_plug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
), NULL
,
1351 if (!local_err
&& hotplug_dev2
) {
1352 hotplug_handler_pre_plug(hotplug_dev2
, dev
, &local_err
);
1354 error_propagate(errp
, local_err
);
1357 static void pc_virtio_md_pci_plug(HotplugHandler
*hotplug_dev
,
1358 DeviceState
*dev
, Error
**errp
)
1360 HotplugHandler
*hotplug_dev2
= qdev_get_bus_hotplug_handler(dev
);
1361 Error
*local_err
= NULL
;
1364 * Plug the memory device first and then branch off to the actual
1365 * hotplug handler. If that one fails, we can easily undo the memory
1368 memory_device_plug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
));
1370 hotplug_handler_plug(hotplug_dev2
, dev
, &local_err
);
1372 memory_device_unplug(MEMORY_DEVICE(dev
), MACHINE(hotplug_dev
));
1375 error_propagate(errp
, local_err
);
1378 static void pc_virtio_md_pci_unplug_request(HotplugHandler
*hotplug_dev
,
1379 DeviceState
*dev
, Error
**errp
)
1381 /* We don't support hot unplug of virtio based memory devices */
1382 error_setg(errp
, "virtio based memory devices cannot be unplugged.");
1385 static void pc_virtio_md_pci_unplug(HotplugHandler
*hotplug_dev
,
1386 DeviceState
*dev
, Error
**errp
)
1388 /* We don't support hot unplug of virtio based memory devices */
1391 static void pc_machine_device_pre_plug_cb(HotplugHandler
*hotplug_dev
,
1392 DeviceState
*dev
, Error
**errp
)
1394 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1395 pc_memory_pre_plug(hotplug_dev
, dev
, errp
);
1396 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1397 x86_cpu_pre_plug(hotplug_dev
, dev
, errp
);
1398 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
) ||
1399 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_MEM_PCI
)) {
1400 pc_virtio_md_pci_pre_plug(hotplug_dev
, dev
, errp
);
1404 static void pc_machine_device_plug_cb(HotplugHandler
*hotplug_dev
,
1405 DeviceState
*dev
, Error
**errp
)
1407 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1408 pc_memory_plug(hotplug_dev
, dev
, errp
);
1409 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1410 x86_cpu_plug(hotplug_dev
, dev
, errp
);
1411 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
) ||
1412 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_MEM_PCI
)) {
1413 pc_virtio_md_pci_plug(hotplug_dev
, dev
, errp
);
1417 static void pc_machine_device_unplug_request_cb(HotplugHandler
*hotplug_dev
,
1418 DeviceState
*dev
, Error
**errp
)
1420 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1421 pc_memory_unplug_request(hotplug_dev
, dev
, errp
);
1422 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1423 x86_cpu_unplug_request_cb(hotplug_dev
, dev
, errp
);
1424 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
) ||
1425 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_MEM_PCI
)) {
1426 pc_virtio_md_pci_unplug_request(hotplug_dev
, dev
, errp
);
1428 error_setg(errp
, "acpi: device unplug request for not supported device"
1429 " type: %s", object_get_typename(OBJECT(dev
)));
1433 static void pc_machine_device_unplug_cb(HotplugHandler
*hotplug_dev
,
1434 DeviceState
*dev
, Error
**errp
)
1436 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
)) {
1437 pc_memory_unplug(hotplug_dev
, dev
, errp
);
1438 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
1439 x86_cpu_unplug_cb(hotplug_dev
, dev
, errp
);
1440 } else if (object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
) ||
1441 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_MEM_PCI
)) {
1442 pc_virtio_md_pci_unplug(hotplug_dev
, dev
, errp
);
1444 error_setg(errp
, "acpi: device unplug for not supported device"
1445 " type: %s", object_get_typename(OBJECT(dev
)));
1449 static HotplugHandler
*pc_get_hotplug_handler(MachineState
*machine
,
1452 if (object_dynamic_cast(OBJECT(dev
), TYPE_PC_DIMM
) ||
1453 object_dynamic_cast(OBJECT(dev
), TYPE_CPU
) ||
1454 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_PMEM_PCI
) ||
1455 object_dynamic_cast(OBJECT(dev
), TYPE_VIRTIO_MEM_PCI
)) {
1456 return HOTPLUG_HANDLER(machine
);
1463 pc_machine_get_device_memory_region_size(Object
*obj
, Visitor
*v
,
1464 const char *name
, void *opaque
,
1467 MachineState
*ms
= MACHINE(obj
);
1470 if (ms
->device_memory
) {
1471 value
= memory_region_size(&ms
->device_memory
->mr
);
1474 visit_type_int(v
, name
, &value
, errp
);
1477 static void pc_machine_get_vmport(Object
*obj
, Visitor
*v
, const char *name
,
1478 void *opaque
, Error
**errp
)
1480 PCMachineState
*pcms
= PC_MACHINE(obj
);
1481 OnOffAuto vmport
= pcms
->vmport
;
1483 visit_type_OnOffAuto(v
, name
, &vmport
, errp
);
1486 static void pc_machine_set_vmport(Object
*obj
, Visitor
*v
, const char *name
,
1487 void *opaque
, Error
**errp
)
1489 PCMachineState
*pcms
= PC_MACHINE(obj
);
1491 visit_type_OnOffAuto(v
, name
, &pcms
->vmport
, errp
);
1494 static bool pc_machine_get_smbus(Object
*obj
, Error
**errp
)
1496 PCMachineState
*pcms
= PC_MACHINE(obj
);
1498 return pcms
->smbus_enabled
;
1501 static void pc_machine_set_smbus(Object
*obj
, bool value
, Error
**errp
)
1503 PCMachineState
*pcms
= PC_MACHINE(obj
);
1505 pcms
->smbus_enabled
= value
;
1508 static bool pc_machine_get_sata(Object
*obj
, Error
**errp
)
1510 PCMachineState
*pcms
= PC_MACHINE(obj
);
1512 return pcms
->sata_enabled
;
1515 static void pc_machine_set_sata(Object
*obj
, bool value
, Error
**errp
)
1517 PCMachineState
*pcms
= PC_MACHINE(obj
);
1519 pcms
->sata_enabled
= value
;
1522 static bool pc_machine_get_pit(Object
*obj
, Error
**errp
)
1524 PCMachineState
*pcms
= PC_MACHINE(obj
);
1526 return pcms
->pit_enabled
;
1529 static void pc_machine_set_pit(Object
*obj
, bool value
, Error
**errp
)
1531 PCMachineState
*pcms
= PC_MACHINE(obj
);
1533 pcms
->pit_enabled
= value
;
1536 static void pc_machine_get_max_ram_below_4g(Object
*obj
, Visitor
*v
,
1537 const char *name
, void *opaque
,
1540 PCMachineState
*pcms
= PC_MACHINE(obj
);
1541 uint64_t value
= pcms
->max_ram_below_4g
;
1543 visit_type_size(v
, name
, &value
, errp
);
1546 static void pc_machine_set_max_ram_below_4g(Object
*obj
, Visitor
*v
,
1547 const char *name
, void *opaque
,
1550 PCMachineState
*pcms
= PC_MACHINE(obj
);
1553 if (!visit_type_size(v
, name
, &value
, errp
)) {
1556 if (value
> 4 * GiB
) {
1558 "Machine option 'max-ram-below-4g=%"PRIu64
1559 "' expects size less than or equal to 4G", value
);
1563 if (value
< 1 * MiB
) {
1564 warn_report("Only %" PRIu64
" bytes of RAM below the 4GiB boundary,"
1565 "BIOS may not work with less than 1MiB", value
);
1568 pcms
->max_ram_below_4g
= value
;
1571 static void pc_machine_initfn(Object
*obj
)
1573 PCMachineState
*pcms
= PC_MACHINE(obj
);
1575 #ifdef CONFIG_VMPORT
1576 pcms
->vmport
= ON_OFF_AUTO_AUTO
;
1578 pcms
->vmport
= ON_OFF_AUTO_OFF
;
1579 #endif /* CONFIG_VMPORT */
1580 pcms
->max_ram_below_4g
= 0; /* use default */
1581 /* acpi build is enabled by default if machine supports it */
1582 pcms
->acpi_build_enabled
= PC_MACHINE_GET_CLASS(pcms
)->has_acpi_build
;
1583 pcms
->smbus_enabled
= true;
1584 pcms
->sata_enabled
= true;
1585 pcms
->pit_enabled
= true;
1587 pc_system_flash_create(pcms
);
1588 pcms
->pcspk
= isa_new(TYPE_PC_SPEAKER
);
1589 object_property_add_alias(OBJECT(pcms
), "pcspk-audiodev",
1590 OBJECT(pcms
->pcspk
), "audiodev");
1593 static void pc_machine_reset(MachineState
*machine
)
1598 qemu_devices_reset();
1600 /* Reset APIC after devices have been reset to cancel
1601 * any changes that qemu_devices_reset() might have done.
1606 if (cpu
->apic_state
) {
1607 device_legacy_reset(cpu
->apic_state
);
1612 static void pc_machine_wakeup(MachineState
*machine
)
1614 cpu_synchronize_all_states();
1615 pc_machine_reset(machine
);
1616 cpu_synchronize_all_post_reset();
1619 static bool pc_hotplug_allowed(MachineState
*ms
, DeviceState
*dev
, Error
**errp
)
1621 X86IOMMUState
*iommu
= x86_iommu_get_default();
1622 IntelIOMMUState
*intel_iommu
;
1625 object_dynamic_cast((Object
*)iommu
, TYPE_INTEL_IOMMU_DEVICE
) &&
1626 object_dynamic_cast((Object
*)dev
, "vfio-pci")) {
1627 intel_iommu
= INTEL_IOMMU_DEVICE(iommu
);
1628 if (!intel_iommu
->caching_mode
) {
1629 error_setg(errp
, "Device assignment is not allowed without "
1630 "enabling caching-mode=on for Intel IOMMU.");
1638 static void pc_machine_class_init(ObjectClass
*oc
, void *data
)
1640 MachineClass
*mc
= MACHINE_CLASS(oc
);
1641 PCMachineClass
*pcmc
= PC_MACHINE_CLASS(oc
);
1642 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
1644 pcmc
->pci_enabled
= true;
1645 pcmc
->has_acpi_build
= true;
1646 pcmc
->rsdp_in_ram
= true;
1647 pcmc
->smbios_defaults
= true;
1648 pcmc
->smbios_uuid_encoded
= true;
1649 pcmc
->gigabyte_align
= true;
1650 pcmc
->has_reserved_memory
= true;
1651 pcmc
->kvmclock_enabled
= true;
1652 pcmc
->enforce_aligned_dimm
= true;
1653 /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported
1654 * to be used at the moment, 32K should be enough for a while. */
1655 pcmc
->acpi_data_size
= 0x20000 + 0x8000;
1656 pcmc
->linuxboot_dma_enabled
= true;
1657 pcmc
->pvh_enabled
= true;
1658 assert(!mc
->get_hotplug_handler
);
1659 mc
->get_hotplug_handler
= pc_get_hotplug_handler
;
1660 mc
->hotplug_allowed
= pc_hotplug_allowed
;
1661 mc
->cpu_index_to_instance_props
= x86_cpu_index_to_props
;
1662 mc
->get_default_cpu_node_id
= x86_get_default_cpu_node_id
;
1663 mc
->possible_cpu_arch_ids
= x86_possible_cpu_arch_ids
;
1664 mc
->auto_enable_numa_with_memhp
= true;
1665 mc
->auto_enable_numa_with_memdev
= true;
1666 mc
->has_hotpluggable_cpus
= true;
1667 mc
->default_boot_order
= "cad";
1668 mc
->smp_parse
= pc_smp_parse
;
1669 mc
->block_default_type
= IF_IDE
;
1671 mc
->reset
= pc_machine_reset
;
1672 mc
->wakeup
= pc_machine_wakeup
;
1673 hc
->pre_plug
= pc_machine_device_pre_plug_cb
;
1674 hc
->plug
= pc_machine_device_plug_cb
;
1675 hc
->unplug_request
= pc_machine_device_unplug_request_cb
;
1676 hc
->unplug
= pc_machine_device_unplug_cb
;
1677 mc
->default_cpu_type
= TARGET_DEFAULT_CPU_TYPE
;
1678 mc
->nvdimm_supported
= true;
1679 mc
->default_ram_id
= "pc.ram";
1681 object_class_property_add(oc
, PC_MACHINE_MAX_RAM_BELOW_4G
, "size",
1682 pc_machine_get_max_ram_below_4g
, pc_machine_set_max_ram_below_4g
,
1684 object_class_property_set_description(oc
, PC_MACHINE_MAX_RAM_BELOW_4G
,
1685 "Maximum ram below the 4G boundary (32bit boundary)");
1687 object_class_property_add(oc
, PC_MACHINE_DEVMEM_REGION_SIZE
, "int",
1688 pc_machine_get_device_memory_region_size
, NULL
,
1691 object_class_property_add(oc
, PC_MACHINE_VMPORT
, "OnOffAuto",
1692 pc_machine_get_vmport
, pc_machine_set_vmport
,
1694 object_class_property_set_description(oc
, PC_MACHINE_VMPORT
,
1695 "Enable vmport (pc & q35)");
1697 object_class_property_add_bool(oc
, PC_MACHINE_SMBUS
,
1698 pc_machine_get_smbus
, pc_machine_set_smbus
);
1700 object_class_property_add_bool(oc
, PC_MACHINE_SATA
,
1701 pc_machine_get_sata
, pc_machine_set_sata
);
1703 object_class_property_add_bool(oc
, PC_MACHINE_PIT
,
1704 pc_machine_get_pit
, pc_machine_set_pit
);
1707 static const TypeInfo pc_machine_info
= {
1708 .name
= TYPE_PC_MACHINE
,
1709 .parent
= TYPE_X86_MACHINE
,
1711 .instance_size
= sizeof(PCMachineState
),
1712 .instance_init
= pc_machine_initfn
,
1713 .class_size
= sizeof(PCMachineClass
),
1714 .class_init
= pc_machine_class_init
,
1715 .interfaces
= (InterfaceInfo
[]) {
1716 { TYPE_HOTPLUG_HANDLER
},
1721 static void pc_machine_register_types(void)
1723 type_register_static(&pc_machine_info
);
1726 type_init(pc_machine_register_types
)