1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * QEMU loongson 3a5000 develop board emulation
4 *
5 * Copyright (c) 2021 Loongson Technology Corporation Limited
6 */
7 #include "qemu/osdep.h"
8 #include "qemu/units.h"
9 #include "qemu/datadir.h"
10 #include "qapi/error.h"
11 #include "exec/target_page.h"
12 #include "hw/boards.h"
13 #include "hw/char/serial-mm.h"
14 #include "system/kvm.h"
15 #include "system/tcg.h"
16 #include "system/system.h"
17 #include "system/qtest.h"
18 #include "system/runstate.h"
19 #include "system/reset.h"
20 #include "system/rtc.h"
21 #include "hw/loongarch/virt.h"
22 #include "system/address-spaces.h"
23 #include "hw/irq.h"
24 #include "net/net.h"
25 #include "hw/loader.h"
26 #include "elf.h"
27 #include "hw/intc/loongarch_ipi.h"
28 #include "hw/intc/loongarch_extioi.h"
29 #include "hw/intc/loongarch_pch_pic.h"
30 #include "hw/intc/loongarch_pch_msi.h"
31 #include "hw/pci-host/ls7a.h"
32 #include "hw/pci-host/gpex.h"
33 #include "hw/misc/unimp.h"
34 #include "hw/loongarch/fw_cfg.h"
35 #include "target/loongarch/cpu.h"
36 #include "hw/firmware/smbios.h"
37 #include "qapi/qapi-visit-common.h"
38 #include "hw/acpi/generic_event_device.h"
39 #include "hw/mem/nvdimm.h"
40 #include "hw/platform-bus.h"
41 #include "hw/display/ramfb.h"
42 #include "hw/uefi/var-service-api.h"
43 #include "hw/mem/pc-dimm.h"
44 #include "system/tpm.h"
45 #include "system/block-backend.h"
46 #include "hw/block/flash.h"
47 #include "hw/virtio/virtio-iommu.h"
48 #include "qemu/error-report.h"
49
virt_get_veiointc(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)50 static void virt_get_veiointc(Object *obj, Visitor *v, const char *name,
51 void *opaque, Error **errp)
52 {
53 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
54 OnOffAuto veiointc = lvms->veiointc;
55
56 visit_type_OnOffAuto(v, name, &veiointc, errp);
57 }
58
virt_set_veiointc(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)59 static void virt_set_veiointc(Object *obj, Visitor *v, const char *name,
60 void *opaque, Error **errp)
61 {
62 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
63
64 visit_type_OnOffAuto(v, name, &lvms->veiointc, errp);
65 }
66
virt_flash_create1(LoongArchVirtMachineState * lvms,const char * name,const char * alias_prop_name)67 static PFlashCFI01 *virt_flash_create1(LoongArchVirtMachineState *lvms,
68 const char *name,
69 const char *alias_prop_name)
70 {
71 DeviceState *dev = qdev_new(TYPE_PFLASH_CFI01);
72
73 qdev_prop_set_uint64(dev, "sector-length", VIRT_FLASH_SECTOR_SIZE);
74 qdev_prop_set_uint8(dev, "width", 4);
75 qdev_prop_set_uint8(dev, "device-width", 2);
76 qdev_prop_set_bit(dev, "big-endian", false);
77 qdev_prop_set_uint16(dev, "id0", 0x89);
78 qdev_prop_set_uint16(dev, "id1", 0x18);
79 qdev_prop_set_uint16(dev, "id2", 0x00);
80 qdev_prop_set_uint16(dev, "id3", 0x00);
81 qdev_prop_set_string(dev, "name", name);
82 object_property_add_child(OBJECT(lvms), name, OBJECT(dev));
83 object_property_add_alias(OBJECT(lvms), alias_prop_name,
84 OBJECT(dev), "drive");
85 return PFLASH_CFI01(dev);
86 }
87
virt_flash_create(LoongArchVirtMachineState * lvms)88 static void virt_flash_create(LoongArchVirtMachineState *lvms)
89 {
90 lvms->flash[0] = virt_flash_create1(lvms, "virt.flash0", "pflash0");
91 lvms->flash[1] = virt_flash_create1(lvms, "virt.flash1", "pflash1");
92 }
93
virt_flash_map1(PFlashCFI01 * flash,hwaddr base,hwaddr size,MemoryRegion * sysmem)94 static void virt_flash_map1(PFlashCFI01 *flash,
95 hwaddr base, hwaddr size,
96 MemoryRegion *sysmem)
97 {
98 DeviceState *dev = DEVICE(flash);
99 BlockBackend *blk;
100 hwaddr real_size = size;
101
102 blk = pflash_cfi01_get_blk(flash);
103 if (blk) {
104 real_size = blk_getlength(blk);
105 assert(real_size && real_size <= size);
106 }
107
108 assert(QEMU_IS_ALIGNED(real_size, VIRT_FLASH_SECTOR_SIZE));
109 assert(real_size / VIRT_FLASH_SECTOR_SIZE <= UINT32_MAX);
110
111 qdev_prop_set_uint32(dev, "num-blocks", real_size / VIRT_FLASH_SECTOR_SIZE);
112 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
113 memory_region_add_subregion(sysmem, base,
114 sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0));
115 }
116
virt_flash_map(LoongArchVirtMachineState * lvms,MemoryRegion * sysmem)117 static void virt_flash_map(LoongArchVirtMachineState *lvms,
118 MemoryRegion *sysmem)
119 {
120 PFlashCFI01 *flash0 = lvms->flash[0];
121 PFlashCFI01 *flash1 = lvms->flash[1];
122
123 virt_flash_map1(flash0, VIRT_FLASH0_BASE, VIRT_FLASH0_SIZE, sysmem);
124 virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem);
125 }
126
virt_build_smbios(LoongArchVirtMachineState * lvms)127 static void virt_build_smbios(LoongArchVirtMachineState *lvms)
128 {
129 MachineState *ms = MACHINE(lvms);
130 MachineClass *mc = MACHINE_GET_CLASS(lvms);
131 uint8_t *smbios_tables, *smbios_anchor;
132 size_t smbios_tables_len, smbios_anchor_len;
133 const char *product = "QEMU Virtual Machine";
134
135 if (!lvms->fw_cfg) {
136 return;
137 }
138
139 if (kvm_enabled()) {
140 product = "KVM Virtual Machine";
141 }
142
143 smbios_set_defaults("QEMU", product, mc->name);
144
145 smbios_get_tables(ms, SMBIOS_ENTRY_POINT_TYPE_64,
146 NULL, 0,
147 &smbios_tables, &smbios_tables_len,
148 &smbios_anchor, &smbios_anchor_len, &error_fatal);
149
150 if (smbios_anchor) {
151 fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-tables",
152 smbios_tables, smbios_tables_len);
153 fw_cfg_add_file(lvms->fw_cfg, "etc/smbios/smbios-anchor",
154 smbios_anchor, smbios_anchor_len);
155 }
156 }
157
virt_done(Notifier * notifier,void * data)158 static void virt_done(Notifier *notifier, void *data)
159 {
160 LoongArchVirtMachineState *lvms = container_of(notifier,
161 LoongArchVirtMachineState, machine_done);
162 virt_build_smbios(lvms);
163 virt_acpi_setup(lvms);
164 virt_fdt_setup(lvms);
165 }
166
virt_powerdown_req(Notifier * notifier,void * opaque)167 static void virt_powerdown_req(Notifier *notifier, void *opaque)
168 {
169 LoongArchVirtMachineState *s;
170
171 s = container_of(notifier, LoongArchVirtMachineState, powerdown_notifier);
172 acpi_send_event(s->acpi_ged, ACPI_POWER_DOWN_STATUS);
173 }
174
memmap_add_entry(MachineState * ms,uint64_t address,uint64_t length,uint32_t type)175 static void memmap_add_entry(MachineState *ms, uint64_t address,
176 uint64_t length, uint32_t type)
177 {
178 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(ms);
179 struct memmap_entry *memmap_table;
180 unsigned int memmap_entries;
181
182 memmap_table = lvms->memmap_table;
183 memmap_entries = lvms->memmap_entries;
184 /* Ensure there are no duplicate entries. */
185 for (unsigned i = 0; i < memmap_entries; i++) {
186 assert(memmap_table[i].address != address);
187 }
188
189 memmap_table = g_renew(struct memmap_entry, memmap_table,
190 memmap_entries + 1);
191 memmap_table[memmap_entries].address = cpu_to_le64(address);
192 memmap_table[memmap_entries].length = cpu_to_le64(length);
193 memmap_table[memmap_entries].type = cpu_to_le32(type);
194 memmap_table[memmap_entries].reserved = 0;
195 memmap_entries++;
196 lvms->memmap_table = memmap_table;
197 lvms->memmap_entries = memmap_entries;
198 }
199
create_acpi_ged(DeviceState * pch_pic,LoongArchVirtMachineState * lvms)200 static DeviceState *create_acpi_ged(DeviceState *pch_pic,
201 LoongArchVirtMachineState *lvms)
202 {
203 DeviceState *dev;
204 MachineState *ms = MACHINE(lvms);
205 MachineClass *mc = MACHINE_GET_CLASS(lvms);
206 uint32_t event = ACPI_GED_PWR_DOWN_EVT;
207
208 if (ms->ram_slots) {
209 event |= ACPI_GED_MEM_HOTPLUG_EVT;
210 }
211
212 if (mc->has_hotpluggable_cpus) {
213 event |= ACPI_GED_CPU_HOTPLUG_EVT;
214 }
215
216 dev = qdev_new(TYPE_ACPI_GED);
217 qdev_prop_set_uint32(dev, "ged-event", event);
218 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
219
220 /* ged event */
221 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, VIRT_GED_EVT_ADDR);
222 /* memory hotplug */
223 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, VIRT_GED_MEM_ADDR);
224 /* ged regs used for reset and power down */
225 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR);
226
227 if (mc->has_hotpluggable_cpus) {
228 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 3, VIRT_GED_CPUHP_ADDR);
229 }
230
231 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
232 qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE));
233 return dev;
234 }
235
create_platform_bus(DeviceState * pch_pic)236 static DeviceState *create_platform_bus(DeviceState *pch_pic)
237 {
238 DeviceState *dev;
239 SysBusDevice *sysbus;
240 int i, irq;
241 MemoryRegion *sysmem = get_system_memory();
242
243 dev = qdev_new(TYPE_PLATFORM_BUS_DEVICE);
244 dev->id = g_strdup(TYPE_PLATFORM_BUS_DEVICE);
245 qdev_prop_set_uint32(dev, "num_irqs", VIRT_PLATFORM_BUS_NUM_IRQS);
246 qdev_prop_set_uint32(dev, "mmio_size", VIRT_PLATFORM_BUS_SIZE);
247 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
248
249 sysbus = SYS_BUS_DEVICE(dev);
250 for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) {
251 irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i;
252 sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq));
253 }
254
255 memory_region_add_subregion(sysmem,
256 VIRT_PLATFORM_BUS_BASEADDRESS,
257 sysbus_mmio_get_region(sysbus, 0));
258 return dev;
259 }
260
virt_devices_init(DeviceState * pch_pic,LoongArchVirtMachineState * lvms)261 static void virt_devices_init(DeviceState *pch_pic,
262 LoongArchVirtMachineState *lvms)
263 {
264 MachineClass *mc = MACHINE_GET_CLASS(lvms);
265 DeviceState *gpex_dev;
266 SysBusDevice *d;
267 PCIBus *pci_bus;
268 MemoryRegion *ecam_alias, *ecam_reg, *pio_alias, *pio_reg;
269 MemoryRegion *mmio_alias, *mmio_reg;
270 int i;
271
272 gpex_dev = qdev_new(TYPE_GPEX_HOST);
273 d = SYS_BUS_DEVICE(gpex_dev);
274 sysbus_realize_and_unref(d, &error_fatal);
275 pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus;
276 lvms->pci_bus = pci_bus;
277
278 /* Map only part size_ecam bytes of ECAM space */
279 ecam_alias = g_new0(MemoryRegion, 1);
280 ecam_reg = sysbus_mmio_get_region(d, 0);
281 memory_region_init_alias(ecam_alias, OBJECT(gpex_dev), "pcie-ecam",
282 ecam_reg, 0, VIRT_PCI_CFG_SIZE);
283 memory_region_add_subregion(get_system_memory(), VIRT_PCI_CFG_BASE,
284 ecam_alias);
285
286 /* Map PCI mem space */
287 mmio_alias = g_new0(MemoryRegion, 1);
288 mmio_reg = sysbus_mmio_get_region(d, 1);
289 memory_region_init_alias(mmio_alias, OBJECT(gpex_dev), "pcie-mmio",
290 mmio_reg, VIRT_PCI_MEM_BASE, VIRT_PCI_MEM_SIZE);
291 memory_region_add_subregion(get_system_memory(), VIRT_PCI_MEM_BASE,
292 mmio_alias);
293
294 /* Map PCI IO port space. */
295 pio_alias = g_new0(MemoryRegion, 1);
296 pio_reg = sysbus_mmio_get_region(d, 2);
297 memory_region_init_alias(pio_alias, OBJECT(gpex_dev), "pcie-io", pio_reg,
298 VIRT_PCI_IO_OFFSET, VIRT_PCI_IO_SIZE);
299 memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE,
300 pio_alias);
301
302 for (i = 0; i < PCI_NUM_PINS; i++) {
303 sysbus_connect_irq(d, i,
304 qdev_get_gpio_in(pch_pic, 16 + i));
305 gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i);
306 }
307
308 /*
309 * Create uart fdt node in reverse order so that they appear
310 * in the finished device tree lowest address first
311 */
312 for (i = VIRT_UART_COUNT; i-- > 0;) {
313 hwaddr base = VIRT_UART_BASE + i * VIRT_UART_SIZE;
314 int irq = VIRT_UART_IRQ + i - VIRT_GSI_BASE;
315 serial_mm_init(get_system_memory(), base, 0,
316 qdev_get_gpio_in(pch_pic, irq),
317 115200, serial_hd(i), DEVICE_LITTLE_ENDIAN);
318 }
319
320 /* Network init */
321 pci_init_nic_devices(pci_bus, mc->default_nic);
322
323 /*
324 * There are some invalid guest memory access.
325 * Create some unimplemented devices to emulate this.
326 */
327 create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4);
328 sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE,
329 qdev_get_gpio_in(pch_pic,
330 VIRT_RTC_IRQ - VIRT_GSI_BASE));
331
332 /* acpi ged */
333 lvms->acpi_ged = create_acpi_ged(pch_pic, lvms);
334 /* platform bus */
335 lvms->platform_bus_dev = create_platform_bus(pch_pic);
336 }
337
virt_cpu_irq_init(LoongArchVirtMachineState * lvms)338 static void virt_cpu_irq_init(LoongArchVirtMachineState *lvms)
339 {
340 int num;
341 MachineState *ms = MACHINE(lvms);
342 MachineClass *mc = MACHINE_GET_CLASS(ms);
343 const CPUArchIdList *possible_cpus;
344 CPUState *cs;
345
346 /* cpu nodes */
347 possible_cpus = mc->possible_cpu_arch_ids(ms);
348 for (num = 0; num < possible_cpus->len; num++) {
349 cs = possible_cpus->cpus[num].cpu;
350 if (cs == NULL) {
351 continue;
352 }
353
354 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), DEVICE(cs),
355 &error_abort);
356 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), DEVICE(cs),
357 &error_abort);
358 }
359 }
360
virt_irq_init(LoongArchVirtMachineState * lvms)361 static void virt_irq_init(LoongArchVirtMachineState *lvms)
362 {
363 DeviceState *pch_pic, *pch_msi;
364 DeviceState *ipi, *extioi;
365 SysBusDevice *d;
366 int i, start, num;
367
368 /*
369 * Extended IRQ model.
370 * |
371 * +-----------+ +-------------|--------+ +-----------+
372 * | IPI/Timer | --> | CPUINTC(0-3)|(4-255) | <-- | IPI/Timer |
373 * +-----------+ +-------------|--------+ +-----------+
374 * ^ |
375 * |
376 * +---------+
377 * | EIOINTC |
378 * +---------+
379 * ^ ^
380 * | |
381 * +---------+ +---------+
382 * | PCH-PIC | | PCH-MSI |
383 * +---------+ +---------+
384 * ^ ^ ^
385 * | | |
386 * +--------+ +---------+ +---------+
387 * | UARTs | | Devices | | Devices |
388 * +--------+ +---------+ +---------+
389 *
390 * Virt extended IRQ model.
391 *
392 * +-----+ +---------------+ +-------+
393 * | IPI |--> | CPUINTC(0-255)| <-- | Timer |
394 * +-----+ +---------------+ +-------+
395 * ^
396 * |
397 * +-----------+
398 * | V-EIOINTC |
399 * +-----------+
400 * ^ ^
401 * | |
402 * +---------+ +---------+
403 * | PCH-PIC | | PCH-MSI |
404 * +---------+ +---------+
405 * ^ ^ ^
406 * | | |
407 * +--------+ +---------+ +---------+
408 * | UARTs | | Devices | | Devices |
409 * +--------+ +---------+ +---------+
410 */
411
412 /* Create IPI device */
413 ipi = qdev_new(TYPE_LOONGARCH_IPI);
414 lvms->ipi = ipi;
415 sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal);
416
417 /* Create EXTIOI device */
418 extioi = qdev_new(TYPE_LOONGARCH_EXTIOI);
419 lvms->extioi = extioi;
420 if (virt_is_veiointc_enabled(lvms)) {
421 qdev_prop_set_bit(extioi, "has-virtualization-extension", true);
422 }
423 sysbus_realize_and_unref(SYS_BUS_DEVICE(extioi), &error_fatal);
424
425 virt_cpu_irq_init(lvms);
426 pch_pic = qdev_new(TYPE_LOONGARCH_PIC);
427 num = VIRT_PCH_PIC_IRQ_NUM;
428 qdev_prop_set_uint32(pch_pic, "pch_pic_irq_num", num);
429 d = SYS_BUS_DEVICE(pch_pic);
430 sysbus_realize_and_unref(d, &error_fatal);
431
432 pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI);
433 start = num;
434 num = EXTIOI_IRQS - start;
435 qdev_prop_set_uint32(pch_msi, "msi_irq_base", start);
436 qdev_prop_set_uint32(pch_msi, "msi_irq_num", num);
437 d = SYS_BUS_DEVICE(pch_msi);
438 sysbus_realize_and_unref(d, &error_fatal);
439 sysbus_mmio_map(d, 0, VIRT_PCH_MSI_ADDR_LOW);
440
441 if (kvm_irqchip_in_kernel()) {
442 kvm_loongarch_init_irq_routing();
443 } else {
444 /* IPI iocsr memory region */
445 memory_region_add_subregion(&lvms->system_iocsr, SMP_IPI_MAILBOX,
446 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 0));
447 memory_region_add_subregion(&lvms->system_iocsr, MAIL_SEND_ADDR,
448 sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1));
449
450 /* EXTIOI iocsr memory region */
451 memory_region_add_subregion(&lvms->system_iocsr, APIC_BASE,
452 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 0));
453 if (virt_is_veiointc_enabled(lvms)) {
454 memory_region_add_subregion(&lvms->system_iocsr, EXTIOI_VIRT_BASE,
455 sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi), 1));
456 }
457
458 /* PCH_PIC memory region */
459 memory_region_add_subregion(get_system_memory(), VIRT_IOAPIC_REG_BASE,
460 sysbus_mmio_get_region(SYS_BUS_DEVICE(pch_pic), 0));
461
462 /* Connect pch_pic irqs to extioi */
463 for (i = 0; i < VIRT_PCH_PIC_IRQ_NUM; i++) {
464 qdev_connect_gpio_out(DEVICE(pch_pic), i,
465 qdev_get_gpio_in(extioi, i));
466 }
467
468 for (i = VIRT_PCH_PIC_IRQ_NUM; i < EXTIOI_IRQS; i++) {
469 /* Connect pch_msi irqs to extioi */
470 qdev_connect_gpio_out(DEVICE(pch_msi), i - VIRT_PCH_PIC_IRQ_NUM,
471 qdev_get_gpio_in(extioi, i));
472 }
473 }
474 virt_devices_init(pch_pic, lvms);
475 }
476
virt_firmware_init(LoongArchVirtMachineState * lvms)477 static void virt_firmware_init(LoongArchVirtMachineState *lvms)
478 {
479 char *filename = MACHINE(lvms)->firmware;
480 char *bios_name = NULL;
481 int bios_size, i;
482 BlockBackend *pflash_blk0;
483 MemoryRegion *mr;
484
485 lvms->bios_loaded = false;
486
487 /* Map legacy -drive if=pflash to machine properties */
488 for (i = 0; i < ARRAY_SIZE(lvms->flash); i++) {
489 pflash_cfi01_legacy_drive(lvms->flash[i],
490 drive_get(IF_PFLASH, 0, i));
491 }
492
493 virt_flash_map(lvms, get_system_memory());
494
495 pflash_blk0 = pflash_cfi01_get_blk(lvms->flash[0]);
496
497 if (pflash_blk0) {
498 if (filename) {
499 error_report("cannot use both '-bios' and '-drive if=pflash'"
500 "options at once");
501 exit(1);
502 }
503 lvms->bios_loaded = true;
504 return;
505 }
506
507 if (filename) {
508 bios_name = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename);
509 if (!bios_name) {
510 error_report("Could not find ROM image '%s'", filename);
511 exit(1);
512 }
513
514 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(lvms->flash[0]), 0);
515 bios_size = load_image_mr(bios_name, mr);
516 if (bios_size < 0) {
517 error_report("Could not load ROM image '%s'", bios_name);
518 exit(1);
519 }
520 g_free(bios_name);
521 lvms->bios_loaded = true;
522 }
523 }
524
virt_iocsr_misc_write(void * opaque,hwaddr addr,uint64_t val,unsigned size,MemTxAttrs attrs)525 static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr,
526 uint64_t val, unsigned size,
527 MemTxAttrs attrs)
528 {
529 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque);
530 uint64_t features;
531
532 switch (addr) {
533 case MISC_FUNC_REG:
534 if (kvm_irqchip_in_kernel()) {
535 return MEMTX_OK;
536 }
537
538 if (!virt_is_veiointc_enabled(lvms)) {
539 return MEMTX_OK;
540 }
541
542 features = address_space_ldl(&lvms->as_iocsr,
543 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
544 attrs, NULL);
545 if (val & BIT_ULL(IOCSRM_EXTIOI_EN)) {
546 features |= BIT(EXTIOI_ENABLE);
547 }
548 if (val & BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE)) {
549 features |= BIT(EXTIOI_ENABLE_INT_ENCODE);
550 }
551
552 address_space_stl(&lvms->as_iocsr,
553 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
554 features, attrs, NULL);
555 break;
556 default:
557 g_assert_not_reached();
558 }
559
560 return MEMTX_OK;
561 }
562
virt_iocsr_misc_read(void * opaque,hwaddr addr,uint64_t * data,unsigned size,MemTxAttrs attrs)563 static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr,
564 uint64_t *data,
565 unsigned size, MemTxAttrs attrs)
566 {
567 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(opaque);
568 uint64_t ret = 0;
569 int features;
570
571 switch (addr) {
572 case VERSION_REG:
573 ret = 0x11ULL;
574 break;
575 case FEATURE_REG:
576 ret = BIT(IOCSRF_MSI) | BIT(IOCSRF_EXTIOI) | BIT(IOCSRF_CSRIPI);
577 if (kvm_enabled()) {
578 ret |= BIT(IOCSRF_VM);
579 }
580 break;
581 case VENDOR_REG:
582 ret = 0x6e6f73676e6f6f4cULL; /* "Loongson" */
583 break;
584 case CPUNAME_REG:
585 ret = 0x303030354133ULL; /* "3A5000" */
586 break;
587 case MISC_FUNC_REG:
588 if (kvm_irqchip_in_kernel()) {
589 return MEMTX_OK;
590 }
591
592 if (!virt_is_veiointc_enabled(lvms)) {
593 ret |= BIT_ULL(IOCSRM_EXTIOI_EN);
594 break;
595 }
596
597 features = address_space_ldl(&lvms->as_iocsr,
598 EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
599 attrs, NULL);
600 if (features & BIT(EXTIOI_ENABLE)) {
601 ret |= BIT_ULL(IOCSRM_EXTIOI_EN);
602 }
603 if (features & BIT(EXTIOI_ENABLE_INT_ENCODE)) {
604 ret |= BIT_ULL(IOCSRM_EXTIOI_INT_ENCODE);
605 }
606 break;
607 default:
608 g_assert_not_reached();
609 }
610
611 *data = ret;
612 return MEMTX_OK;
613 }
614
615 static const MemoryRegionOps virt_iocsr_misc_ops = {
616 .read_with_attrs = virt_iocsr_misc_read,
617 .write_with_attrs = virt_iocsr_misc_write,
618 .endianness = DEVICE_LITTLE_ENDIAN,
619 .valid = {
620 .min_access_size = 4,
621 .max_access_size = 8,
622 },
623 .impl = {
624 .min_access_size = 8,
625 .max_access_size = 8,
626 },
627 };
628
fw_cfg_add_memory(MachineState * ms)629 static void fw_cfg_add_memory(MachineState *ms)
630 {
631 hwaddr base, size, ram_size, gap;
632 int nb_numa_nodes, nodes;
633 NodeInfo *numa_info;
634
635 ram_size = ms->ram_size;
636 base = VIRT_LOWMEM_BASE;
637 gap = VIRT_LOWMEM_SIZE;
638 nodes = nb_numa_nodes = ms->numa_state->num_nodes;
639 numa_info = ms->numa_state->nodes;
640 if (!nodes) {
641 nodes = 1;
642 }
643
644 /* add fw_cfg memory map of node0 */
645 if (nb_numa_nodes) {
646 size = numa_info[0].node_mem;
647 } else {
648 size = ram_size;
649 }
650
651 if (size >= gap) {
652 memmap_add_entry(ms, base, gap, 1);
653 size -= gap;
654 base = VIRT_HIGHMEM_BASE;
655 }
656
657 if (size) {
658 memmap_add_entry(ms, base, size, 1);
659 base += size;
660 }
661
662 if (nodes < 2) {
663 return;
664 }
665
666 /* add fw_cfg memory map of other nodes */
667 if (numa_info[0].node_mem < gap && ram_size > gap) {
668 /*
669 * memory map for the maining nodes splited into two part
670 * lowram: [base, +(gap - numa_info[0].node_mem))
671 * highram: [VIRT_HIGHMEM_BASE, +(ram_size - gap))
672 */
673 memmap_add_entry(ms, base, gap - numa_info[0].node_mem, 1);
674 size = ram_size - gap;
675 base = VIRT_HIGHMEM_BASE;
676 } else {
677 size = ram_size - numa_info[0].node_mem;
678 }
679
680 if (size) {
681 memmap_add_entry(ms, base, size, 1);
682 }
683 }
684
virt_init(MachineState * machine)685 static void virt_init(MachineState *machine)
686 {
687 const char *cpu_model = machine->cpu_type;
688 MemoryRegion *address_space_mem = get_system_memory();
689 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine);
690 int i;
691 hwaddr base, size, ram_size = machine->ram_size;
692 MachineClass *mc = MACHINE_GET_CLASS(machine);
693 Object *cpuobj;
694
695 if (!cpu_model) {
696 cpu_model = LOONGARCH_CPU_TYPE_NAME("la464");
697 }
698
699 /* Create IOCSR space */
700 memory_region_init_io(&lvms->system_iocsr, OBJECT(machine), NULL,
701 machine, "iocsr", UINT64_MAX);
702 address_space_init(&lvms->as_iocsr, &lvms->system_iocsr, "IOCSR");
703 memory_region_init_io(&lvms->iocsr_mem, OBJECT(machine),
704 &virt_iocsr_misc_ops,
705 machine, "iocsr_misc", 0x428);
706 memory_region_add_subregion(&lvms->system_iocsr, 0, &lvms->iocsr_mem);
707
708 /* Init CPUs */
709 mc->possible_cpu_arch_ids(machine);
710 for (i = 0; i < machine->smp.cpus; i++) {
711 cpuobj = object_new(machine->cpu_type);
712 if (cpuobj == NULL) {
713 error_report("Fail to create object with type %s ",
714 machine->cpu_type);
715 exit(EXIT_FAILURE);
716 }
717 qdev_realize_and_unref(DEVICE(cpuobj), NULL, &error_fatal);
718 }
719 fw_cfg_add_memory(machine);
720
721 /* Node0 memory */
722 size = ram_size;
723 base = VIRT_LOWMEM_BASE;
724 if (size > VIRT_LOWMEM_SIZE) {
725 size = VIRT_LOWMEM_SIZE;
726 }
727
728 memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.lowram",
729 machine->ram, base, size);
730 memory_region_add_subregion(address_space_mem, base, &lvms->lowmem);
731 base += size;
732 if (ram_size - size) {
733 base = VIRT_HIGHMEM_BASE;
734 memory_region_init_alias(&lvms->highmem, NULL, "loongarch.highram",
735 machine->ram, VIRT_LOWMEM_BASE + size, ram_size - size);
736 memory_region_add_subregion(address_space_mem, base, &lvms->highmem);
737 base += ram_size - size;
738 }
739
740 /* initialize device memory address space */
741 if (machine->ram_size < machine->maxram_size) {
742 ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
743
744 if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
745 error_report("unsupported amount of memory slots: %"PRIu64,
746 machine->ram_slots);
747 exit(EXIT_FAILURE);
748 }
749
750 if (QEMU_ALIGN_UP(machine->maxram_size,
751 TARGET_PAGE_SIZE) != machine->maxram_size) {
752 error_report("maximum memory size must by aligned to multiple of "
753 "%d bytes", TARGET_PAGE_SIZE);
754 exit(EXIT_FAILURE);
755 }
756 machine_memory_devices_init(machine, base, device_mem_size);
757 }
758
759 /* load the BIOS image. */
760 virt_firmware_init(lvms);
761
762 /* fw_cfg init */
763 lvms->fw_cfg = virt_fw_cfg_init(ram_size, machine);
764 rom_set_fw(lvms->fw_cfg);
765 if (lvms->fw_cfg != NULL) {
766 fw_cfg_add_file(lvms->fw_cfg, "etc/memmap",
767 lvms->memmap_table,
768 sizeof(struct memmap_entry) * lvms->memmap_entries);
769 }
770
771 /* Initialize the IO interrupt subsystem */
772 virt_irq_init(lvms);
773 lvms->machine_done.notify = virt_done;
774 qemu_add_machine_init_done_notifier(&lvms->machine_done);
775 /* connect powerdown request */
776 lvms->powerdown_notifier.notify = virt_powerdown_req;
777 qemu_register_powerdown_notifier(&lvms->powerdown_notifier);
778
779 lvms->bootinfo.ram_size = ram_size;
780 loongarch_load_kernel(machine, &lvms->bootinfo);
781 }
782
virt_get_acpi(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)783 static void virt_get_acpi(Object *obj, Visitor *v, const char *name,
784 void *opaque, Error **errp)
785 {
786 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
787 OnOffAuto acpi = lvms->acpi;
788
789 visit_type_OnOffAuto(v, name, &acpi, errp);
790 }
791
virt_set_acpi(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)792 static void virt_set_acpi(Object *obj, Visitor *v, const char *name,
793 void *opaque, Error **errp)
794 {
795 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
796
797 visit_type_OnOffAuto(v, name, &lvms->acpi, errp);
798 }
799
virt_get_oem_id(Object * obj,Error ** errp)800 static char *virt_get_oem_id(Object *obj, Error **errp)
801 {
802 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
803
804 return g_strdup(lvms->oem_id);
805 }
806
virt_set_oem_id(Object * obj,const char * value,Error ** errp)807 static void virt_set_oem_id(Object *obj, const char *value, Error **errp)
808 {
809 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
810 size_t len = strlen(value);
811
812 if (len > 6) {
813 error_setg(errp,
814 "User specified oem-id value is bigger than 6 bytes in size");
815 return;
816 }
817
818 strncpy(lvms->oem_id, value, 6);
819 }
820
virt_get_oem_table_id(Object * obj,Error ** errp)821 static char *virt_get_oem_table_id(Object *obj, Error **errp)
822 {
823 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
824
825 return g_strdup(lvms->oem_table_id);
826 }
827
virt_set_oem_table_id(Object * obj,const char * value,Error ** errp)828 static void virt_set_oem_table_id(Object *obj, const char *value,
829 Error **errp)
830 {
831 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
832 size_t len = strlen(value);
833
834 if (len > 8) {
835 error_setg(errp,
836 "User specified oem-table-id value is bigger than 8 bytes in size");
837 return;
838 }
839 strncpy(lvms->oem_table_id, value, 8);
840 }
841
virt_initfn(Object * obj)842 static void virt_initfn(Object *obj)
843 {
844 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(obj);
845
846 if (tcg_enabled()) {
847 lvms->veiointc = ON_OFF_AUTO_OFF;
848 }
849 lvms->acpi = ON_OFF_AUTO_AUTO;
850 lvms->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
851 lvms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
852 virt_flash_create(lvms);
853 }
854
virt_get_topo_from_index(MachineState * ms,LoongArchCPUTopo * topo,int index)855 static void virt_get_topo_from_index(MachineState *ms,
856 LoongArchCPUTopo *topo, int index)
857 {
858 topo->socket_id = index / (ms->smp.cores * ms->smp.threads);
859 topo->core_id = index / ms->smp.threads % ms->smp.cores;
860 topo->thread_id = index % ms->smp.threads;
861 }
862
topo_align_up(unsigned int count)863 static unsigned int topo_align_up(unsigned int count)
864 {
865 g_assert(count >= 1);
866 count -= 1;
867 return BIT(count ? 32 - clz32(count) : 0);
868 }
869
870 /*
871 * LoongArch Reference Manual Vol1, Chapter 7.4.12 CPU Identity
872 * For CPU architecture, bit0 .. bit8 is valid for CPU id, max cpuid is 512
873 * However for IPI/Eiointc interrupt controller, max supported cpu id for
874 * irq routingis 256
875 *
876 * Here max cpu id is 256 for virt machine
877 */
virt_get_arch_id_from_topo(MachineState * ms,LoongArchCPUTopo * topo)878 static int virt_get_arch_id_from_topo(MachineState *ms, LoongArchCPUTopo *topo)
879 {
880 int arch_id, threads, cores, sockets;
881
882 threads = topo_align_up(ms->smp.threads);
883 cores = topo_align_up(ms->smp.cores);
884 sockets = topo_align_up(ms->smp.sockets);
885 if ((threads * cores * sockets) > 256) {
886 error_report("Exceeding max cpuid 256 with sockets[%d] cores[%d]"
887 " threads[%d]", ms->smp.sockets, ms->smp.cores,
888 ms->smp.threads);
889 exit(1);
890 }
891
892 arch_id = topo->thread_id + topo->core_id * threads;
893 arch_id += topo->socket_id * threads * cores;
894 return arch_id;
895 }
896
897 /* Find cpu slot in machine->possible_cpus by arch_id */
virt_find_cpu_slot(MachineState * ms,int arch_id)898 static CPUArchId *virt_find_cpu_slot(MachineState *ms, int arch_id)
899 {
900 int n;
901 for (n = 0; n < ms->possible_cpus->len; n++) {
902 if (ms->possible_cpus->cpus[n].arch_id == arch_id) {
903 return &ms->possible_cpus->cpus[n];
904 }
905 }
906
907 return NULL;
908 }
909
910 /* Find cpu slot for cold-plut CPU object where cpu is NULL */
virt_find_empty_cpu_slot(MachineState * ms)911 static CPUArchId *virt_find_empty_cpu_slot(MachineState *ms)
912 {
913 int n;
914 for (n = 0; n < ms->possible_cpus->len; n++) {
915 if (ms->possible_cpus->cpus[n].cpu == NULL) {
916 return &ms->possible_cpus->cpus[n];
917 }
918 }
919
920 return NULL;
921 }
922
virt_cpu_pre_plug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)923 static void virt_cpu_pre_plug(HotplugHandler *hotplug_dev,
924 DeviceState *dev, Error **errp)
925 {
926 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
927 MachineState *ms = MACHINE(OBJECT(hotplug_dev));
928 LoongArchCPU *cpu = LOONGARCH_CPU(dev);
929 CPUState *cs = CPU(dev);
930 CPUArchId *cpu_slot;
931 LoongArchCPUTopo topo;
932 int arch_id;
933
934 if (lvms->acpi_ged) {
935 if ((cpu->thread_id < 0) || (cpu->thread_id >= ms->smp.threads)) {
936 error_setg(errp,
937 "Invalid thread-id %u specified, must be in range 1:%u",
938 cpu->thread_id, ms->smp.threads - 1);
939 return;
940 }
941
942 if ((cpu->core_id < 0) || (cpu->core_id >= ms->smp.cores)) {
943 error_setg(errp,
944 "Invalid core-id %u specified, must be in range 1:%u",
945 cpu->core_id, ms->smp.cores - 1);
946 return;
947 }
948
949 if ((cpu->socket_id < 0) || (cpu->socket_id >= ms->smp.sockets)) {
950 error_setg(errp,
951 "Invalid socket-id %u specified, must be in range 1:%u",
952 cpu->socket_id, ms->smp.sockets - 1);
953 return;
954 }
955
956 topo.socket_id = cpu->socket_id;
957 topo.core_id = cpu->core_id;
958 topo.thread_id = cpu->thread_id;
959 arch_id = virt_get_arch_id_from_topo(ms, &topo);
960 cpu_slot = virt_find_cpu_slot(ms, arch_id);
961 if (CPU(cpu_slot->cpu)) {
962 error_setg(errp,
963 "cpu(id%d=%d:%d:%d) with arch-id %" PRIu64 " exists",
964 cs->cpu_index, cpu->socket_id, cpu->core_id,
965 cpu->thread_id, cpu_slot->arch_id);
966 return;
967 }
968 } else {
969 /* For cold-add cpu, find empty cpu slot */
970 cpu_slot = virt_find_empty_cpu_slot(ms);
971 topo.socket_id = cpu_slot->props.socket_id;
972 topo.core_id = cpu_slot->props.core_id;
973 topo.thread_id = cpu_slot->props.thread_id;
974 object_property_set_int(OBJECT(dev), "socket-id", topo.socket_id, NULL);
975 object_property_set_int(OBJECT(dev), "core-id", topo.core_id, NULL);
976 object_property_set_int(OBJECT(dev), "thread-id", topo.thread_id, NULL);
977 }
978
979 cpu->env.address_space_iocsr = &lvms->as_iocsr;
980 cpu->phy_id = cpu_slot->arch_id;
981 cs->cpu_index = cpu_slot - ms->possible_cpus->cpus;
982 numa_cpu_pre_plug(cpu_slot, dev, errp);
983 }
984
virt_cpu_unplug_request(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)985 static void virt_cpu_unplug_request(HotplugHandler *hotplug_dev,
986 DeviceState *dev, Error **errp)
987 {
988 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
989 LoongArchCPU *cpu = LOONGARCH_CPU(dev);
990 CPUState *cs = CPU(dev);
991
992 if (cs->cpu_index == 0) {
993 error_setg(errp, "hot-unplug of boot cpu(id%d=%d:%d:%d) not supported",
994 cs->cpu_index, cpu->socket_id,
995 cpu->core_id, cpu->thread_id);
996 return;
997 }
998
999 hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp);
1000 }
1001
virt_cpu_unplug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1002 static void virt_cpu_unplug(HotplugHandler *hotplug_dev,
1003 DeviceState *dev, Error **errp)
1004 {
1005 CPUArchId *cpu_slot;
1006 LoongArchCPU *cpu = LOONGARCH_CPU(dev);
1007 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1008
1009 /* Notify ipi and extioi irqchip to remove interrupt routing to CPU */
1010 hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->ipi), dev, &error_abort);
1011 hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->extioi), dev, &error_abort);
1012
1013 /* Notify acpi ged CPU removed */
1014 hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, &error_abort);
1015
1016 cpu_slot = virt_find_cpu_slot(MACHINE(lvms), cpu->phy_id);
1017 cpu_slot->cpu = NULL;
1018 }
1019
virt_cpu_plug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1020 static void virt_cpu_plug(HotplugHandler *hotplug_dev,
1021 DeviceState *dev, Error **errp)
1022 {
1023 CPUArchId *cpu_slot;
1024 LoongArchCPU *cpu = LOONGARCH_CPU(dev);
1025 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1026
1027 if (lvms->ipi) {
1028 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->ipi), dev, &error_abort);
1029 }
1030
1031 if (lvms->extioi) {
1032 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->extioi), dev, &error_abort);
1033 }
1034
1035 if (lvms->acpi_ged) {
1036 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged), dev,
1037 &error_abort);
1038 }
1039
1040 cpu_slot = virt_find_cpu_slot(MACHINE(lvms), cpu->phy_id);
1041 cpu_slot->cpu = CPU(dev);
1042 }
1043
memhp_type_supported(DeviceState * dev)1044 static bool memhp_type_supported(DeviceState *dev)
1045 {
1046 /* we only support pc dimm now */
1047 return object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) &&
1048 !object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM);
1049 }
1050
virt_mem_pre_plug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1051 static void virt_mem_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
1052 Error **errp)
1053 {
1054 pc_dimm_pre_plug(PC_DIMM(dev), MACHINE(hotplug_dev), errp);
1055 }
1056
virt_device_pre_plug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1057 static void virt_device_pre_plug(HotplugHandler *hotplug_dev,
1058 DeviceState *dev, Error **errp)
1059 {
1060 if (memhp_type_supported(dev)) {
1061 virt_mem_pre_plug(hotplug_dev, dev, errp);
1062 } else if (object_dynamic_cast(OBJECT(dev), TYPE_LOONGARCH_CPU)) {
1063 virt_cpu_pre_plug(hotplug_dev, dev, errp);
1064 }
1065 }
1066
virt_mem_unplug_request(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1067 static void virt_mem_unplug_request(HotplugHandler *hotplug_dev,
1068 DeviceState *dev, Error **errp)
1069 {
1070 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1071
1072 /* the acpi ged is always exist */
1073 hotplug_handler_unplug_request(HOTPLUG_HANDLER(lvms->acpi_ged), dev,
1074 errp);
1075 }
1076
virt_device_unplug_request(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1077 static void virt_device_unplug_request(HotplugHandler *hotplug_dev,
1078 DeviceState *dev, Error **errp)
1079 {
1080 if (memhp_type_supported(dev)) {
1081 virt_mem_unplug_request(hotplug_dev, dev, errp);
1082 } else if (object_dynamic_cast(OBJECT(dev), TYPE_LOONGARCH_CPU)) {
1083 virt_cpu_unplug_request(hotplug_dev, dev, errp);
1084 }
1085 }
1086
virt_mem_unplug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1087 static void virt_mem_unplug(HotplugHandler *hotplug_dev,
1088 DeviceState *dev, Error **errp)
1089 {
1090 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1091
1092 hotplug_handler_unplug(HOTPLUG_HANDLER(lvms->acpi_ged), dev, errp);
1093 pc_dimm_unplug(PC_DIMM(dev), MACHINE(lvms));
1094 qdev_unrealize(dev);
1095 }
1096
virt_device_unplug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1097 static void virt_device_unplug(HotplugHandler *hotplug_dev,
1098 DeviceState *dev, Error **errp)
1099 {
1100 if (memhp_type_supported(dev)) {
1101 virt_mem_unplug(hotplug_dev, dev, errp);
1102 } else if (object_dynamic_cast(OBJECT(dev), TYPE_LOONGARCH_CPU)) {
1103 virt_cpu_unplug(hotplug_dev, dev, errp);
1104 }
1105 }
1106
virt_mem_plug(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1107 static void virt_mem_plug(HotplugHandler *hotplug_dev,
1108 DeviceState *dev, Error **errp)
1109 {
1110 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1111
1112 pc_dimm_plug(PC_DIMM(dev), MACHINE(lvms));
1113 hotplug_handler_plug(HOTPLUG_HANDLER(lvms->acpi_ged),
1114 dev, &error_abort);
1115 }
1116
virt_device_plug_cb(HotplugHandler * hotplug_dev,DeviceState * dev,Error ** errp)1117 static void virt_device_plug_cb(HotplugHandler *hotplug_dev,
1118 DeviceState *dev, Error **errp)
1119 {
1120 LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(hotplug_dev);
1121 MachineClass *mc = MACHINE_GET_CLASS(lvms);
1122 PlatformBusDevice *pbus;
1123
1124 if (device_is_dynamic_sysbus(mc, dev)) {
1125 if (lvms->platform_bus_dev) {
1126 pbus = PLATFORM_BUS_DEVICE(lvms->platform_bus_dev);
1127 platform_bus_link_device(pbus, SYS_BUS_DEVICE(dev));
1128 }
1129 } else if (memhp_type_supported(dev)) {
1130 virt_mem_plug(hotplug_dev, dev, errp);
1131 } else if (object_dynamic_cast(OBJECT(dev), TYPE_LOONGARCH_CPU)) {
1132 virt_cpu_plug(hotplug_dev, dev, errp);
1133 }
1134 }
1135
virt_get_hotplug_handler(MachineState * machine,DeviceState * dev)1136 static HotplugHandler *virt_get_hotplug_handler(MachineState *machine,
1137 DeviceState *dev)
1138 {
1139 MachineClass *mc = MACHINE_GET_CLASS(machine);
1140
1141 if (device_is_dynamic_sysbus(mc, dev) ||
1142 object_dynamic_cast(OBJECT(dev), TYPE_LOONGARCH_CPU) ||
1143 object_dynamic_cast(OBJECT(dev), TYPE_VIRTIO_IOMMU_PCI) ||
1144 memhp_type_supported(dev)) {
1145 return HOTPLUG_HANDLER(machine);
1146 }
1147 return NULL;
1148 }
1149
virt_possible_cpu_arch_ids(MachineState * ms)1150 static const CPUArchIdList *virt_possible_cpu_arch_ids(MachineState *ms)
1151 {
1152 int n, arch_id;
1153 unsigned int max_cpus = ms->smp.max_cpus;
1154 LoongArchCPUTopo topo;
1155
1156 if (ms->possible_cpus) {
1157 assert(ms->possible_cpus->len == max_cpus);
1158 return ms->possible_cpus;
1159 }
1160
1161 ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
1162 sizeof(CPUArchId) * max_cpus);
1163 ms->possible_cpus->len = max_cpus;
1164 for (n = 0; n < ms->possible_cpus->len; n++) {
1165 virt_get_topo_from_index(ms, &topo, n);
1166 arch_id = virt_get_arch_id_from_topo(ms, &topo);
1167 ms->possible_cpus->cpus[n].type = ms->cpu_type;
1168 ms->possible_cpus->cpus[n].arch_id = arch_id;
1169 ms->possible_cpus->cpus[n].vcpus_count = 1;
1170 ms->possible_cpus->cpus[n].props.has_socket_id = true;
1171 ms->possible_cpus->cpus[n].props.socket_id = topo.socket_id;
1172 ms->possible_cpus->cpus[n].props.has_core_id = true;
1173 ms->possible_cpus->cpus[n].props.core_id = topo.core_id;
1174 ms->possible_cpus->cpus[n].props.has_thread_id = true;
1175 ms->possible_cpus->cpus[n].props.thread_id = topo.thread_id;
1176 }
1177 return ms->possible_cpus;
1178 }
1179
virt_cpu_index_to_props(MachineState * ms,unsigned cpu_index)1180 static CpuInstanceProperties virt_cpu_index_to_props(MachineState *ms,
1181 unsigned cpu_index)
1182 {
1183 MachineClass *mc = MACHINE_GET_CLASS(ms);
1184 const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
1185
1186 assert(cpu_index < possible_cpus->len);
1187 return possible_cpus->cpus[cpu_index].props;
1188 }
1189
virt_get_default_cpu_node_id(const MachineState * ms,int idx)1190 static int64_t virt_get_default_cpu_node_id(const MachineState *ms, int idx)
1191 {
1192 int64_t socket_id;
1193
1194 if (ms->numa_state->num_nodes) {
1195 socket_id = ms->possible_cpus->cpus[idx].props.socket_id;
1196 return socket_id % ms->numa_state->num_nodes;
1197 } else {
1198 return 0;
1199 }
1200 }
1201
virt_class_init(ObjectClass * oc,const void * data)1202 static void virt_class_init(ObjectClass *oc, const void *data)
1203 {
1204 MachineClass *mc = MACHINE_CLASS(oc);
1205 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
1206
1207 mc->init = virt_init;
1208 mc->default_cpu_type = LOONGARCH_CPU_TYPE_NAME("la464");
1209 mc->default_ram_id = "loongarch.ram";
1210 mc->desc = "QEMU LoongArch Virtual Machine";
1211 mc->max_cpus = LOONGARCH_MAX_CPUS;
1212 mc->is_default = 1;
1213 mc->default_kernel_irqchip_split = false;
1214 mc->block_default_type = IF_VIRTIO;
1215 mc->default_boot_order = "c";
1216 mc->no_cdrom = 1;
1217 mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
1218 mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
1219 mc->get_default_cpu_node_id = virt_get_default_cpu_node_id;
1220 mc->numa_mem_supported = true;
1221 mc->auto_enable_numa_with_memhp = true;
1222 mc->auto_enable_numa_with_memdev = true;
1223 mc->has_hotpluggable_cpus = true;
1224 mc->get_hotplug_handler = virt_get_hotplug_handler;
1225 mc->default_nic = "virtio-net-pci";
1226 hc->plug = virt_device_plug_cb;
1227 hc->pre_plug = virt_device_pre_plug;
1228 hc->unplug_request = virt_device_unplug_request;
1229 hc->unplug = virt_device_unplug;
1230
1231 object_class_property_add(oc, "acpi", "OnOffAuto",
1232 virt_get_acpi, virt_set_acpi,
1233 NULL, NULL);
1234 object_class_property_set_description(oc, "acpi",
1235 "Enable ACPI");
1236 object_class_property_add(oc, "v-eiointc", "OnOffAuto",
1237 virt_get_veiointc, virt_set_veiointc,
1238 NULL, NULL);
1239 object_class_property_set_description(oc, "v-eiointc",
1240 "Enable Virt Extend I/O Interrupt Controller.");
1241 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_RAMFB_DEVICE);
1242 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_UEFI_VARS_SYSBUS);
1243 #ifdef CONFIG_TPM
1244 machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS);
1245 #endif
1246 object_class_property_add_str(oc, "x-oem-id",
1247 virt_get_oem_id,
1248 virt_set_oem_id);
1249 object_class_property_set_description(oc, "x-oem-id",
1250 "Override the default value of field OEMID "
1251 "in ACPI table header."
1252 "The string may be up to 6 bytes in size");
1253
1254
1255 object_class_property_add_str(oc, "x-oem-table-id",
1256 virt_get_oem_table_id,
1257 virt_set_oem_table_id);
1258 object_class_property_set_description(oc, "x-oem-table-id",
1259 "Override the default value of field OEM Table ID "
1260 "in ACPI table header."
1261 "The string may be up to 8 bytes in size");
1262 }
1263
1264 static const TypeInfo virt_machine_types[] = {
1265 {
1266 .name = TYPE_LOONGARCH_VIRT_MACHINE,
1267 .parent = TYPE_MACHINE,
1268 .instance_size = sizeof(LoongArchVirtMachineState),
1269 .class_init = virt_class_init,
1270 .instance_init = virt_initfn,
1271 .interfaces = (const InterfaceInfo[]) {
1272 { TYPE_HOTPLUG_HANDLER },
1273 { }
1274 },
1275 }
1276 };
1277
1278 DEFINE_TYPES(virt_machine_types)
1279