2 * Copyright (c) 2018 Intel Corporation
3 * Copyright (c) 2019 Red Hat, Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2 or later, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "qemu/osdep.h"
19 #include "qemu/error-report.h"
20 #include "qemu/cutils.h"
21 #include "qemu/units.h"
22 #include "qapi/error.h"
23 #include "qapi/visitor.h"
24 #include "qapi/qapi-visit-common.h"
25 #include "sysemu/sysemu.h"
26 #include "sysemu/cpus.h"
27 #include "sysemu/numa.h"
28 #include "sysemu/reset.h"
29 #include "sysemu/runstate.h"
30 #include "acpi-microvm.h"
32 #include "hw/loader.h"
34 #include "hw/kvm/clock.h"
35 #include "hw/i386/microvm.h"
36 #include "hw/i386/x86.h"
37 #include "target/i386/cpu.h"
38 #include "hw/intc/i8259.h"
39 #include "hw/timer/i8254.h"
40 #include "hw/rtc/mc146818rtc.h"
41 #include "hw/char/serial.h"
42 #include "hw/display/ramfb.h"
43 #include "hw/i386/topology.h"
44 #include "hw/i386/e820_memory_layout.h"
45 #include "hw/i386/fw_cfg.h"
46 #include "hw/virtio/virtio-mmio.h"
47 #include "hw/acpi/acpi.h"
48 #include "hw/acpi/generic_event_device.h"
49 #include "hw/pci-host/gpex.h"
54 #include "hw/xen/start_info.h"
56 #define MICROVM_QBOOT_FILENAME "qboot.rom"
57 #define MICROVM_BIOS_FILENAME "bios-microvm.bin"
59 static void microvm_set_rtc(MicrovmMachineState
*mms
, ISADevice
*s
)
61 X86MachineState
*x86ms
= X86_MACHINE(mms
);
64 val
= MIN(x86ms
->below_4g_mem_size
/ KiB
, 640);
65 rtc_set_memory(s
, 0x15, val
);
66 rtc_set_memory(s
, 0x16, val
>> 8);
67 /* extended memory (next 64MiB) */
68 if (x86ms
->below_4g_mem_size
> 1 * MiB
) {
69 val
= (x86ms
->below_4g_mem_size
- 1 * MiB
) / KiB
;
76 rtc_set_memory(s
, 0x17, val
);
77 rtc_set_memory(s
, 0x18, val
>> 8);
78 rtc_set_memory(s
, 0x30, val
);
79 rtc_set_memory(s
, 0x31, val
>> 8);
80 /* memory between 16MiB and 4GiB */
81 if (x86ms
->below_4g_mem_size
> 16 * MiB
) {
82 val
= (x86ms
->below_4g_mem_size
- 16 * MiB
) / (64 * KiB
);
89 rtc_set_memory(s
, 0x34, val
);
90 rtc_set_memory(s
, 0x35, val
>> 8);
91 /* memory above 4GiB */
92 val
= x86ms
->above_4g_mem_size
/ 65536;
93 rtc_set_memory(s
, 0x5b, val
);
94 rtc_set_memory(s
, 0x5c, val
>> 8);
95 rtc_set_memory(s
, 0x5d, val
>> 16);
98 static void microvm_gsi_handler(void *opaque
, int n
, int level
)
100 GSIState
*s
= opaque
;
102 qemu_set_irq(s
->ioapic_irq
[n
], level
);
105 static void create_gpex(MicrovmMachineState
*mms
)
107 X86MachineState
*x86ms
= X86_MACHINE(mms
);
108 MemoryRegion
*mmio32_alias
;
109 MemoryRegion
*mmio64_alias
;
110 MemoryRegion
*mmio_reg
;
111 MemoryRegion
*ecam_alias
;
112 MemoryRegion
*ecam_reg
;
116 dev
= qdev_new(TYPE_GPEX_HOST
);
117 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev
), &error_fatal
);
119 /* Map only the first size_ecam bytes of ECAM space */
120 ecam_alias
= g_new0(MemoryRegion
, 1);
121 ecam_reg
= sysbus_mmio_get_region(SYS_BUS_DEVICE(dev
), 0);
122 memory_region_init_alias(ecam_alias
, OBJECT(dev
), "pcie-ecam",
123 ecam_reg
, 0, mms
->gpex
.ecam
.size
);
124 memory_region_add_subregion(get_system_memory(),
125 mms
->gpex
.ecam
.base
, ecam_alias
);
127 /* Map the MMIO window into system address space so as to expose
128 * the section of PCI MMIO space which starts at the same base address
129 * (ie 1:1 mapping for that part of PCI MMIO space visible through
132 mmio_reg
= sysbus_mmio_get_region(SYS_BUS_DEVICE(dev
), 1);
133 if (mms
->gpex
.mmio32
.size
) {
134 mmio32_alias
= g_new0(MemoryRegion
, 1);
135 memory_region_init_alias(mmio32_alias
, OBJECT(dev
), "pcie-mmio32", mmio_reg
,
136 mms
->gpex
.mmio32
.base
, mms
->gpex
.mmio32
.size
);
137 memory_region_add_subregion(get_system_memory(),
138 mms
->gpex
.mmio32
.base
, mmio32_alias
);
140 if (mms
->gpex
.mmio64
.size
) {
141 mmio64_alias
= g_new0(MemoryRegion
, 1);
142 memory_region_init_alias(mmio64_alias
, OBJECT(dev
), "pcie-mmio64", mmio_reg
,
143 mms
->gpex
.mmio64
.base
, mms
->gpex
.mmio64
.size
);
144 memory_region_add_subregion(get_system_memory(),
145 mms
->gpex
.mmio64
.base
, mmio64_alias
);
148 for (i
= 0; i
< GPEX_NUM_IRQS
; i
++) {
149 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), i
,
150 x86ms
->gsi
[mms
->gpex
.irq
+ i
]);
154 static void microvm_devices_init(MicrovmMachineState
*mms
)
156 X86MachineState
*x86ms
= X86_MACHINE(mms
);
158 ISADevice
*rtc_state
;
162 /* Core components */
164 gsi_state
= g_malloc0(sizeof(*gsi_state
));
165 if (mms
->pic
== ON_OFF_AUTO_ON
|| mms
->pic
== ON_OFF_AUTO_AUTO
) {
166 x86ms
->gsi
= qemu_allocate_irqs(gsi_handler
, gsi_state
, GSI_NUM_PINS
);
168 x86ms
->gsi
= qemu_allocate_irqs(microvm_gsi_handler
,
169 gsi_state
, GSI_NUM_PINS
);
172 isa_bus
= isa_bus_new(NULL
, get_system_memory(), get_system_io(),
174 isa_bus_irqs(isa_bus
, x86ms
->gsi
);
176 ioapic_init_gsi(gsi_state
, "machine");
178 kvmclock_create(true);
180 mms
->virtio_irq_base
= x86_machine_is_acpi_enabled(x86ms
) ? 16 : 5;
181 for (i
= 0; i
< VIRTIO_NUM_TRANSPORTS
; i
++) {
182 sysbus_create_simple("virtio-mmio",
183 VIRTIO_MMIO_BASE
+ i
* 512,
184 x86ms
->gsi
[mms
->virtio_irq_base
+ i
]);
187 /* Optional and legacy devices */
188 if (x86_machine_is_acpi_enabled(x86ms
)) {
189 DeviceState
*dev
= qdev_new(TYPE_ACPI_GED_X86
);
190 qdev_prop_set_uint32(dev
, "ged-event", ACPI_GED_PWR_DOWN_EVT
);
191 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, GED_MMIO_BASE
);
192 /* sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, GED_MMIO_BASE_MEMHP); */
193 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 2, GED_MMIO_BASE_REGS
);
194 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0,
195 x86ms
->gsi
[GED_MMIO_IRQ
]);
196 sysbus_realize(SYS_BUS_DEVICE(dev
), &error_fatal
);
197 x86ms
->acpi_dev
= HOTPLUG_HANDLER(dev
);
200 if (x86_machine_is_acpi_enabled(x86ms
) && mms
->pcie
== ON_OFF_AUTO_ON
) {
201 /* use topmost 25% of the address space available */
202 hwaddr phys_size
= (hwaddr
)1 << X86_CPU(first_cpu
)->phys_bits
;
203 if (phys_size
> 0x1000000ll
) {
204 mms
->gpex
.mmio64
.size
= phys_size
/ 4;
205 mms
->gpex
.mmio64
.base
= phys_size
- mms
->gpex
.mmio64
.size
;
207 mms
->gpex
.mmio32
.base
= PCIE_MMIO_BASE
;
208 mms
->gpex
.mmio32
.size
= PCIE_MMIO_SIZE
;
209 mms
->gpex
.ecam
.base
= PCIE_ECAM_BASE
;
210 mms
->gpex
.ecam
.size
= PCIE_ECAM_SIZE
;
211 mms
->gpex
.irq
= PCIE_IRQ_BASE
;
215 if (mms
->pic
== ON_OFF_AUTO_ON
|| mms
->pic
== ON_OFF_AUTO_AUTO
) {
218 i8259
= i8259_init(isa_bus
, x86_allocate_cpu_irq());
219 for (i
= 0; i
< ISA_NUM_IRQS
; i
++) {
220 gsi_state
->i8259_irq
[i
] = i8259
[i
];
225 if (mms
->pit
== ON_OFF_AUTO_ON
|| mms
->pit
== ON_OFF_AUTO_AUTO
) {
226 if (kvm_pit_in_kernel()) {
227 kvm_pit_init(isa_bus
, 0x40);
229 i8254_pit_init(isa_bus
, 0x40, 0, NULL
);
233 if (mms
->rtc
== ON_OFF_AUTO_ON
||
234 (mms
->rtc
== ON_OFF_AUTO_AUTO
&& !kvm_enabled())) {
235 rtc_state
= mc146818_rtc_init(isa_bus
, 2000, NULL
);
236 microvm_set_rtc(mms
, rtc_state
);
239 if (mms
->isa_serial
) {
240 serial_hds_isa_init(isa_bus
, 0, 1);
243 if (bios_name
== NULL
) {
244 bios_name
= x86_machine_is_acpi_enabled(x86ms
)
245 ? MICROVM_BIOS_FILENAME
246 : MICROVM_QBOOT_FILENAME
;
248 x86_bios_rom_init(get_system_memory(), true);
251 static void microvm_memory_init(MicrovmMachineState
*mms
)
253 MachineState
*machine
= MACHINE(mms
);
254 X86MachineState
*x86ms
= X86_MACHINE(mms
);
255 MemoryRegion
*ram_below_4g
, *ram_above_4g
;
256 MemoryRegion
*system_memory
= get_system_memory();
258 ram_addr_t lowmem
= 0xc0000000; /* 3G */
261 if (machine
->ram_size
> lowmem
) {
262 x86ms
->above_4g_mem_size
= machine
->ram_size
- lowmem
;
263 x86ms
->below_4g_mem_size
= lowmem
;
265 x86ms
->above_4g_mem_size
= 0;
266 x86ms
->below_4g_mem_size
= machine
->ram_size
;
269 ram_below_4g
= g_malloc(sizeof(*ram_below_4g
));
270 memory_region_init_alias(ram_below_4g
, NULL
, "ram-below-4g", machine
->ram
,
271 0, x86ms
->below_4g_mem_size
);
272 memory_region_add_subregion(system_memory
, 0, ram_below_4g
);
274 e820_add_entry(0, x86ms
->below_4g_mem_size
, E820_RAM
);
276 if (x86ms
->above_4g_mem_size
> 0) {
277 ram_above_4g
= g_malloc(sizeof(*ram_above_4g
));
278 memory_region_init_alias(ram_above_4g
, NULL
, "ram-above-4g",
280 x86ms
->below_4g_mem_size
,
281 x86ms
->above_4g_mem_size
);
282 memory_region_add_subregion(system_memory
, 0x100000000ULL
,
284 e820_add_entry(0x100000000ULL
, x86ms
->above_4g_mem_size
, E820_RAM
);
287 fw_cfg
= fw_cfg_init_io_dma(FW_CFG_IO_BASE
, FW_CFG_IO_BASE
+ 4,
288 &address_space_memory
);
290 fw_cfg_add_i16(fw_cfg
, FW_CFG_NB_CPUS
, machine
->smp
.cpus
);
291 fw_cfg_add_i16(fw_cfg
, FW_CFG_MAX_CPUS
, machine
->smp
.max_cpus
);
292 fw_cfg_add_i64(fw_cfg
, FW_CFG_RAM_SIZE
, (uint64_t)machine
->ram_size
);
293 fw_cfg_add_i32(fw_cfg
, FW_CFG_IRQ0_OVERRIDE
, kvm_allows_irq0_override());
294 fw_cfg_add_bytes(fw_cfg
, FW_CFG_E820_TABLE
,
295 &e820_reserve
, sizeof(e820_reserve
));
296 fw_cfg_add_file(fw_cfg
, "etc/e820", e820_table
,
297 sizeof(struct e820_entry
) * e820_get_num_entries());
301 if (machine
->kernel_filename
!= NULL
) {
302 x86_load_linux(x86ms
, fw_cfg
, 0, true, true);
305 if (mms
->option_roms
) {
306 for (i
= 0; i
< nb_option_roms
; i
++) {
307 rom_add_option(option_rom
[i
].name
, option_rom
[i
].bootindex
);
311 x86ms
->fw_cfg
= fw_cfg
;
312 x86ms
->ioapic_as
= &address_space_memory
;
315 static gchar
*microvm_get_mmio_cmdline(gchar
*name
, uint32_t virtio_irq_base
)
322 separator
= g_strrstr(name
, ".");
327 if (qemu_strtol(separator
+ 1, NULL
, 10, &index
) != 0) {
331 cmdline
= g_malloc0(VIRTIO_CMDLINE_MAXLEN
);
332 ret
= g_snprintf(cmdline
, VIRTIO_CMDLINE_MAXLEN
,
333 " virtio_mmio.device=512@0x%lx:%ld",
334 VIRTIO_MMIO_BASE
+ index
* 512,
335 virtio_irq_base
+ index
);
336 if (ret
< 0 || ret
>= VIRTIO_CMDLINE_MAXLEN
) {
344 static void microvm_fix_kernel_cmdline(MachineState
*machine
)
346 X86MachineState
*x86ms
= X86_MACHINE(machine
);
347 MicrovmMachineState
*mms
= MICROVM_MACHINE(machine
);
353 * Find MMIO transports with attached devices, and add them to the kernel
356 * Yes, this is a hack, but one that heavily improves the UX without
357 * introducing any significant issues.
359 cmdline
= g_strdup(machine
->kernel_cmdline
);
360 bus
= sysbus_get_default();
361 QTAILQ_FOREACH(kid
, &bus
->children
, sibling
) {
362 DeviceState
*dev
= kid
->child
;
363 ObjectClass
*class = object_get_class(OBJECT(dev
));
365 if (class == object_class_by_name(TYPE_VIRTIO_MMIO
)) {
366 VirtIOMMIOProxy
*mmio
= VIRTIO_MMIO(OBJECT(dev
));
367 VirtioBusState
*mmio_virtio_bus
= &mmio
->bus
;
368 BusState
*mmio_bus
= &mmio_virtio_bus
->parent_obj
;
370 if (!QTAILQ_EMPTY(&mmio_bus
->children
)) {
371 gchar
*mmio_cmdline
= microvm_get_mmio_cmdline
372 (mmio_bus
->name
, mms
->virtio_irq_base
);
374 char *newcmd
= g_strjoin(NULL
, cmdline
, mmio_cmdline
, NULL
);
375 g_free(mmio_cmdline
);
383 fw_cfg_modify_i32(x86ms
->fw_cfg
, FW_CFG_CMDLINE_SIZE
, strlen(cmdline
) + 1);
384 fw_cfg_modify_string(x86ms
->fw_cfg
, FW_CFG_CMDLINE_DATA
, cmdline
);
389 static void microvm_device_pre_plug_cb(HotplugHandler
*hotplug_dev
,
390 DeviceState
*dev
, Error
**errp
)
392 X86CPU
*cpu
= X86_CPU(dev
);
394 cpu
->host_phys_bits
= true; /* need reliable phys-bits */
395 x86_cpu_pre_plug(hotplug_dev
, dev
, errp
);
398 static void microvm_device_plug_cb(HotplugHandler
*hotplug_dev
,
399 DeviceState
*dev
, Error
**errp
)
401 x86_cpu_plug(hotplug_dev
, dev
, errp
);
404 static void microvm_device_unplug_request_cb(HotplugHandler
*hotplug_dev
,
405 DeviceState
*dev
, Error
**errp
)
407 error_setg(errp
, "unplug not supported by microvm");
410 static void microvm_device_unplug_cb(HotplugHandler
*hotplug_dev
,
411 DeviceState
*dev
, Error
**errp
)
413 error_setg(errp
, "unplug not supported by microvm");
416 static HotplugHandler
*microvm_get_hotplug_handler(MachineState
*machine
,
419 if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
420 return HOTPLUG_HANDLER(machine
);
425 static void microvm_machine_state_init(MachineState
*machine
)
427 MicrovmMachineState
*mms
= MICROVM_MACHINE(machine
);
428 X86MachineState
*x86ms
= X86_MACHINE(machine
);
429 Error
*local_err
= NULL
;
431 microvm_memory_init(mms
);
433 x86_cpus_init(x86ms
, CPU_VERSION_LATEST
);
435 error_report_err(local_err
);
439 microvm_devices_init(mms
);
442 static void microvm_machine_reset(MachineState
*machine
)
444 MicrovmMachineState
*mms
= MICROVM_MACHINE(machine
);
448 if (!x86_machine_is_acpi_enabled(X86_MACHINE(machine
)) &&
449 machine
->kernel_filename
!= NULL
&&
450 mms
->auto_kernel_cmdline
&& !mms
->kernel_cmdline_fixed
) {
451 microvm_fix_kernel_cmdline(machine
);
452 mms
->kernel_cmdline_fixed
= true;
455 qemu_devices_reset();
460 if (cpu
->apic_state
) {
461 device_legacy_reset(cpu
->apic_state
);
466 static void microvm_machine_get_pic(Object
*obj
, Visitor
*v
, const char *name
,
467 void *opaque
, Error
**errp
)
469 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
470 OnOffAuto pic
= mms
->pic
;
472 visit_type_OnOffAuto(v
, name
, &pic
, errp
);
475 static void microvm_machine_set_pic(Object
*obj
, Visitor
*v
, const char *name
,
476 void *opaque
, Error
**errp
)
478 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
480 visit_type_OnOffAuto(v
, name
, &mms
->pic
, errp
);
483 static void microvm_machine_get_pit(Object
*obj
, Visitor
*v
, const char *name
,
484 void *opaque
, Error
**errp
)
486 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
487 OnOffAuto pit
= mms
->pit
;
489 visit_type_OnOffAuto(v
, name
, &pit
, errp
);
492 static void microvm_machine_set_pit(Object
*obj
, Visitor
*v
, const char *name
,
493 void *opaque
, Error
**errp
)
495 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
497 visit_type_OnOffAuto(v
, name
, &mms
->pit
, errp
);
500 static void microvm_machine_get_rtc(Object
*obj
, Visitor
*v
, const char *name
,
501 void *opaque
, Error
**errp
)
503 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
504 OnOffAuto rtc
= mms
->rtc
;
506 visit_type_OnOffAuto(v
, name
, &rtc
, errp
);
509 static void microvm_machine_set_rtc(Object
*obj
, Visitor
*v
, const char *name
,
510 void *opaque
, Error
**errp
)
512 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
514 visit_type_OnOffAuto(v
, name
, &mms
->rtc
, errp
);
517 static void microvm_machine_get_pcie(Object
*obj
, Visitor
*v
, const char *name
,
518 void *opaque
, Error
**errp
)
520 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
521 OnOffAuto pcie
= mms
->pcie
;
523 visit_type_OnOffAuto(v
, name
, &pcie
, errp
);
526 static void microvm_machine_set_pcie(Object
*obj
, Visitor
*v
, const char *name
,
527 void *opaque
, Error
**errp
)
529 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
531 visit_type_OnOffAuto(v
, name
, &mms
->pcie
, errp
);
534 static bool microvm_machine_get_isa_serial(Object
*obj
, Error
**errp
)
536 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
538 return mms
->isa_serial
;
541 static void microvm_machine_set_isa_serial(Object
*obj
, bool value
,
544 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
546 mms
->isa_serial
= value
;
549 static bool microvm_machine_get_option_roms(Object
*obj
, Error
**errp
)
551 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
553 return mms
->option_roms
;
556 static void microvm_machine_set_option_roms(Object
*obj
, bool value
,
559 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
561 mms
->option_roms
= value
;
564 static bool microvm_machine_get_auto_kernel_cmdline(Object
*obj
, Error
**errp
)
566 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
568 return mms
->auto_kernel_cmdline
;
571 static void microvm_machine_set_auto_kernel_cmdline(Object
*obj
, bool value
,
574 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
576 mms
->auto_kernel_cmdline
= value
;
579 static void microvm_machine_done(Notifier
*notifier
, void *data
)
581 MicrovmMachineState
*mms
= container_of(notifier
, MicrovmMachineState
,
584 acpi_setup_microvm(mms
);
587 static void microvm_powerdown_req(Notifier
*notifier
, void *data
)
589 MicrovmMachineState
*mms
= container_of(notifier
, MicrovmMachineState
,
591 X86MachineState
*x86ms
= X86_MACHINE(mms
);
593 if (x86ms
->acpi_dev
) {
594 Object
*obj
= OBJECT(x86ms
->acpi_dev
);
595 AcpiDeviceIfClass
*adevc
= ACPI_DEVICE_IF_GET_CLASS(obj
);
596 adevc
->send_event(ACPI_DEVICE_IF(x86ms
->acpi_dev
),
597 ACPI_POWER_DOWN_STATUS
);
601 static void microvm_machine_initfn(Object
*obj
)
603 MicrovmMachineState
*mms
= MICROVM_MACHINE(obj
);
606 mms
->pic
= ON_OFF_AUTO_AUTO
;
607 mms
->pit
= ON_OFF_AUTO_AUTO
;
608 mms
->rtc
= ON_OFF_AUTO_AUTO
;
609 mms
->pcie
= ON_OFF_AUTO_AUTO
;
610 mms
->isa_serial
= true;
611 mms
->option_roms
= true;
612 mms
->auto_kernel_cmdline
= true;
615 mms
->kernel_cmdline_fixed
= false;
617 mms
->machine_done
.notify
= microvm_machine_done
;
618 qemu_add_machine_init_done_notifier(&mms
->machine_done
);
619 mms
->powerdown_req
.notify
= microvm_powerdown_req
;
620 qemu_register_powerdown_notifier(&mms
->powerdown_req
);
623 static void microvm_class_init(ObjectClass
*oc
, void *data
)
625 MachineClass
*mc
= MACHINE_CLASS(oc
);
626 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
628 mc
->init
= microvm_machine_state_init
;
630 mc
->family
= "microvm_i386";
631 mc
->desc
= "microvm (i386)";
632 mc
->units_per_default_bus
= 1;
635 mc
->has_hotpluggable_cpus
= false;
636 mc
->auto_enable_numa_with_memhp
= false;
637 mc
->auto_enable_numa_with_memdev
= false;
638 mc
->default_cpu_type
= TARGET_DEFAULT_CPU_TYPE
;
639 mc
->nvdimm_supported
= false;
640 mc
->default_ram_id
= "microvm.ram";
642 /* Avoid relying too much on kernel components */
643 mc
->default_kernel_irqchip_split
= true;
645 /* Machine class handlers */
646 mc
->reset
= microvm_machine_reset
;
648 /* hotplug (for cpu coldplug) */
649 mc
->get_hotplug_handler
= microvm_get_hotplug_handler
;
650 hc
->pre_plug
= microvm_device_pre_plug_cb
;
651 hc
->plug
= microvm_device_plug_cb
;
652 hc
->unplug_request
= microvm_device_unplug_request_cb
;
653 hc
->unplug
= microvm_device_unplug_cb
;
655 object_class_property_add(oc
, MICROVM_MACHINE_PIC
, "OnOffAuto",
656 microvm_machine_get_pic
,
657 microvm_machine_set_pic
,
659 object_class_property_set_description(oc
, MICROVM_MACHINE_PIC
,
662 object_class_property_add(oc
, MICROVM_MACHINE_PIT
, "OnOffAuto",
663 microvm_machine_get_pit
,
664 microvm_machine_set_pit
,
666 object_class_property_set_description(oc
, MICROVM_MACHINE_PIT
,
669 object_class_property_add(oc
, MICROVM_MACHINE_RTC
, "OnOffAuto",
670 microvm_machine_get_rtc
,
671 microvm_machine_set_rtc
,
673 object_class_property_set_description(oc
, MICROVM_MACHINE_RTC
,
674 "Enable MC146818 RTC");
676 object_class_property_add(oc
, MICROVM_MACHINE_PCIE
, "OnOffAuto",
677 microvm_machine_get_pcie
,
678 microvm_machine_set_pcie
,
680 object_class_property_set_description(oc
, MICROVM_MACHINE_PCIE
,
683 object_class_property_add_bool(oc
, MICROVM_MACHINE_ISA_SERIAL
,
684 microvm_machine_get_isa_serial
,
685 microvm_machine_set_isa_serial
);
686 object_class_property_set_description(oc
, MICROVM_MACHINE_ISA_SERIAL
,
687 "Set off to disable the instantiation an ISA serial port");
689 object_class_property_add_bool(oc
, MICROVM_MACHINE_OPTION_ROMS
,
690 microvm_machine_get_option_roms
,
691 microvm_machine_set_option_roms
);
692 object_class_property_set_description(oc
, MICROVM_MACHINE_OPTION_ROMS
,
693 "Set off to disable loading option ROMs");
695 object_class_property_add_bool(oc
, MICROVM_MACHINE_AUTO_KERNEL_CMDLINE
,
696 microvm_machine_get_auto_kernel_cmdline
,
697 microvm_machine_set_auto_kernel_cmdline
);
698 object_class_property_set_description(oc
,
699 MICROVM_MACHINE_AUTO_KERNEL_CMDLINE
,
700 "Set off to disable adding virtio-mmio devices to the kernel cmdline");
702 machine_class_allow_dynamic_sysbus_dev(mc
, TYPE_RAMFB_DEVICE
);
705 static const TypeInfo microvm_machine_info
= {
706 .name
= TYPE_MICROVM_MACHINE
,
707 .parent
= TYPE_X86_MACHINE
,
708 .instance_size
= sizeof(MicrovmMachineState
),
709 .instance_init
= microvm_machine_initfn
,
710 .class_size
= sizeof(MicrovmMachineClass
),
711 .class_init
= microvm_class_init
,
712 .interfaces
= (InterfaceInfo
[]) {
713 { TYPE_HOTPLUG_HANDLER
},
718 static void microvm_machine_init(void)
720 type_register_static(µvm_machine_info
);
722 type_init(microvm_machine_init
);