s390x/pci: fix set_ind_atomic
[qemu.git] / hw / s390x / s390-pci-bus.c
1 /*
2 * s390 PCI BUS
3 *
4 * Copyright 2014 IBM Corp.
5 * Author(s): Frank Blaschka <frank.blaschka@de.ibm.com>
6 * Hong Bo Li <lihbbj@cn.ibm.com>
7 * Yi Min Zhao <zyimin@cn.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or (at
10 * your option) any later version. See the COPYING file in the top-level
11 * directory.
12 */
13
14 #include "qemu/osdep.h"
15 #include "qapi/error.h"
16 #include "qapi/visitor.h"
17 #include "cpu.h"
18 #include "s390-pci-bus.h"
19 #include "s390-pci-inst.h"
20 #include "hw/pci/pci_bus.h"
21 #include "hw/qdev-properties.h"
22 #include "hw/pci/pci_bridge.h"
23 #include "hw/pci/msi.h"
24 #include "qemu/error-report.h"
25 #include "qemu/module.h"
26
27 #ifndef DEBUG_S390PCI_BUS
28 #define DEBUG_S390PCI_BUS 0
29 #endif
30
31 #define DPRINTF(fmt, ...) \
32 do { \
33 if (DEBUG_S390PCI_BUS) { \
34 fprintf(stderr, "S390pci-bus: " fmt, ## __VA_ARGS__); \
35 } \
36 } while (0)
37
38 S390pciState *s390_get_phb(void)
39 {
40 static S390pciState *phb;
41
42 if (!phb) {
43 phb = S390_PCI_HOST_BRIDGE(
44 object_resolve_path(TYPE_S390_PCI_HOST_BRIDGE, NULL));
45 assert(phb != NULL);
46 }
47
48 return phb;
49 }
50
51 int pci_chsc_sei_nt2_get_event(void *res)
52 {
53 ChscSeiNt2Res *nt2_res = (ChscSeiNt2Res *)res;
54 PciCcdfAvail *accdf;
55 PciCcdfErr *eccdf;
56 int rc = 1;
57 SeiContainer *sei_cont;
58 S390pciState *s = s390_get_phb();
59
60 sei_cont = QTAILQ_FIRST(&s->pending_sei);
61 if (sei_cont) {
62 QTAILQ_REMOVE(&s->pending_sei, sei_cont, link);
63 nt2_res->nt = 2;
64 nt2_res->cc = sei_cont->cc;
65 nt2_res->length = cpu_to_be16(sizeof(ChscSeiNt2Res));
66 switch (sei_cont->cc) {
67 case 1: /* error event */
68 eccdf = (PciCcdfErr *)nt2_res->ccdf;
69 eccdf->fid = cpu_to_be32(sei_cont->fid);
70 eccdf->fh = cpu_to_be32(sei_cont->fh);
71 eccdf->e = cpu_to_be32(sei_cont->e);
72 eccdf->faddr = cpu_to_be64(sei_cont->faddr);
73 eccdf->pec = cpu_to_be16(sei_cont->pec);
74 break;
75 case 2: /* availability event */
76 accdf = (PciCcdfAvail *)nt2_res->ccdf;
77 accdf->fid = cpu_to_be32(sei_cont->fid);
78 accdf->fh = cpu_to_be32(sei_cont->fh);
79 accdf->pec = cpu_to_be16(sei_cont->pec);
80 break;
81 default:
82 abort();
83 }
84 g_free(sei_cont);
85 rc = 0;
86 }
87
88 return rc;
89 }
90
91 int pci_chsc_sei_nt2_have_event(void)
92 {
93 S390pciState *s = s390_get_phb();
94
95 return !QTAILQ_EMPTY(&s->pending_sei);
96 }
97
98 S390PCIBusDevice *s390_pci_find_next_avail_dev(S390pciState *s,
99 S390PCIBusDevice *pbdev)
100 {
101 S390PCIBusDevice *ret = pbdev ? QTAILQ_NEXT(pbdev, link) :
102 QTAILQ_FIRST(&s->zpci_devs);
103
104 while (ret && ret->state == ZPCI_FS_RESERVED) {
105 ret = QTAILQ_NEXT(ret, link);
106 }
107
108 return ret;
109 }
110
111 S390PCIBusDevice *s390_pci_find_dev_by_fid(S390pciState *s, uint32_t fid)
112 {
113 S390PCIBusDevice *pbdev;
114
115 QTAILQ_FOREACH(pbdev, &s->zpci_devs, link) {
116 if (pbdev->fid == fid) {
117 return pbdev;
118 }
119 }
120
121 return NULL;
122 }
123
124 void s390_pci_sclp_configure(SCCB *sccb)
125 {
126 IoaCfgSccb *psccb = (IoaCfgSccb *)sccb;
127 S390PCIBusDevice *pbdev = s390_pci_find_dev_by_fid(s390_get_phb(),
128 be32_to_cpu(psccb->aid));
129 uint16_t rc;
130
131 if (!pbdev) {
132 DPRINTF("sclp config no dev found\n");
133 rc = SCLP_RC_ADAPTER_ID_NOT_RECOGNIZED;
134 goto out;
135 }
136
137 switch (pbdev->state) {
138 case ZPCI_FS_RESERVED:
139 rc = SCLP_RC_ADAPTER_IN_RESERVED_STATE;
140 break;
141 case ZPCI_FS_STANDBY:
142 pbdev->state = ZPCI_FS_DISABLED;
143 rc = SCLP_RC_NORMAL_COMPLETION;
144 break;
145 default:
146 rc = SCLP_RC_NO_ACTION_REQUIRED;
147 }
148 out:
149 psccb->header.response_code = cpu_to_be16(rc);
150 }
151
152 static void s390_pci_perform_unplug(S390PCIBusDevice *pbdev)
153 {
154 HotplugHandler *hotplug_ctrl;
155
156 /* Unplug the PCI device */
157 if (pbdev->pdev) {
158 DeviceState *pdev = DEVICE(pbdev->pdev);
159
160 hotplug_ctrl = qdev_get_hotplug_handler(pdev);
161 hotplug_handler_unplug(hotplug_ctrl, pdev, &error_abort);
162 object_unparent(OBJECT(pdev));
163 }
164
165 /* Unplug the zPCI device */
166 hotplug_ctrl = qdev_get_hotplug_handler(DEVICE(pbdev));
167 hotplug_handler_unplug(hotplug_ctrl, DEVICE(pbdev), &error_abort);
168 object_unparent(OBJECT(pbdev));
169 }
170
171 void s390_pci_sclp_deconfigure(SCCB *sccb)
172 {
173 IoaCfgSccb *psccb = (IoaCfgSccb *)sccb;
174 S390PCIBusDevice *pbdev = s390_pci_find_dev_by_fid(s390_get_phb(),
175 be32_to_cpu(psccb->aid));
176 uint16_t rc;
177
178 if (!pbdev) {
179 DPRINTF("sclp deconfig no dev found\n");
180 rc = SCLP_RC_ADAPTER_ID_NOT_RECOGNIZED;
181 goto out;
182 }
183
184 switch (pbdev->state) {
185 case ZPCI_FS_RESERVED:
186 rc = SCLP_RC_ADAPTER_IN_RESERVED_STATE;
187 break;
188 case ZPCI_FS_STANDBY:
189 rc = SCLP_RC_NO_ACTION_REQUIRED;
190 break;
191 default:
192 if (pbdev->summary_ind) {
193 pci_dereg_irqs(pbdev);
194 }
195 if (pbdev->iommu->enabled) {
196 pci_dereg_ioat(pbdev->iommu);
197 }
198 pbdev->state = ZPCI_FS_STANDBY;
199 rc = SCLP_RC_NORMAL_COMPLETION;
200
201 if (pbdev->unplug_requested) {
202 s390_pci_perform_unplug(pbdev);
203 }
204 }
205 out:
206 psccb->header.response_code = cpu_to_be16(rc);
207 }
208
209 static S390PCIBusDevice *s390_pci_find_dev_by_uid(S390pciState *s, uint16_t uid)
210 {
211 S390PCIBusDevice *pbdev;
212
213 QTAILQ_FOREACH(pbdev, &s->zpci_devs, link) {
214 if (pbdev->uid == uid) {
215 return pbdev;
216 }
217 }
218
219 return NULL;
220 }
221
222 S390PCIBusDevice *s390_pci_find_dev_by_target(S390pciState *s,
223 const char *target)
224 {
225 S390PCIBusDevice *pbdev;
226
227 if (!target) {
228 return NULL;
229 }
230
231 QTAILQ_FOREACH(pbdev, &s->zpci_devs, link) {
232 if (!strcmp(pbdev->target, target)) {
233 return pbdev;
234 }
235 }
236
237 return NULL;
238 }
239
240 static S390PCIBusDevice *s390_pci_find_dev_by_pci(S390pciState *s,
241 PCIDevice *pci_dev)
242 {
243 S390PCIBusDevice *pbdev;
244
245 if (!pci_dev) {
246 return NULL;
247 }
248
249 QTAILQ_FOREACH(pbdev, &s->zpci_devs, link) {
250 if (pbdev->pdev == pci_dev) {
251 return pbdev;
252 }
253 }
254
255 return NULL;
256 }
257
258 S390PCIBusDevice *s390_pci_find_dev_by_idx(S390pciState *s, uint32_t idx)
259 {
260 return g_hash_table_lookup(s->zpci_table, &idx);
261 }
262
263 S390PCIBusDevice *s390_pci_find_dev_by_fh(S390pciState *s, uint32_t fh)
264 {
265 uint32_t idx = FH_MASK_INDEX & fh;
266 S390PCIBusDevice *pbdev = s390_pci_find_dev_by_idx(s, idx);
267
268 if (pbdev && pbdev->fh == fh) {
269 return pbdev;
270 }
271
272 return NULL;
273 }
274
275 static void s390_pci_generate_event(uint8_t cc, uint16_t pec, uint32_t fh,
276 uint32_t fid, uint64_t faddr, uint32_t e)
277 {
278 SeiContainer *sei_cont;
279 S390pciState *s = s390_get_phb();
280
281 sei_cont = g_new0(SeiContainer, 1);
282 sei_cont->fh = fh;
283 sei_cont->fid = fid;
284 sei_cont->cc = cc;
285 sei_cont->pec = pec;
286 sei_cont->faddr = faddr;
287 sei_cont->e = e;
288
289 QTAILQ_INSERT_TAIL(&s->pending_sei, sei_cont, link);
290 css_generate_css_crws(0);
291 }
292
293 static void s390_pci_generate_plug_event(uint16_t pec, uint32_t fh,
294 uint32_t fid)
295 {
296 s390_pci_generate_event(2, pec, fh, fid, 0, 0);
297 }
298
299 void s390_pci_generate_error_event(uint16_t pec, uint32_t fh, uint32_t fid,
300 uint64_t faddr, uint32_t e)
301 {
302 s390_pci_generate_event(1, pec, fh, fid, faddr, e);
303 }
304
305 static void s390_pci_set_irq(void *opaque, int irq, int level)
306 {
307 /* nothing to do */
308 }
309
310 static int s390_pci_map_irq(PCIDevice *pci_dev, int irq_num)
311 {
312 /* nothing to do */
313 return 0;
314 }
315
316 static uint64_t s390_pci_get_table_origin(uint64_t iota)
317 {
318 return iota & ~ZPCI_IOTA_RTTO_FLAG;
319 }
320
321 static unsigned int calc_rtx(dma_addr_t ptr)
322 {
323 return ((unsigned long) ptr >> ZPCI_RT_SHIFT) & ZPCI_INDEX_MASK;
324 }
325
326 static unsigned int calc_sx(dma_addr_t ptr)
327 {
328 return ((unsigned long) ptr >> ZPCI_ST_SHIFT) & ZPCI_INDEX_MASK;
329 }
330
331 static unsigned int calc_px(dma_addr_t ptr)
332 {
333 return ((unsigned long) ptr >> PAGE_SHIFT) & ZPCI_PT_MASK;
334 }
335
336 static uint64_t get_rt_sto(uint64_t entry)
337 {
338 return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_RTX)
339 ? (entry & ZPCI_RTE_ADDR_MASK)
340 : 0;
341 }
342
343 static uint64_t get_st_pto(uint64_t entry)
344 {
345 return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_SX)
346 ? (entry & ZPCI_STE_ADDR_MASK)
347 : 0;
348 }
349
350 static bool rt_entry_isvalid(uint64_t entry)
351 {
352 return (entry & ZPCI_TABLE_VALID_MASK) == ZPCI_TABLE_VALID;
353 }
354
355 static bool pt_entry_isvalid(uint64_t entry)
356 {
357 return (entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID;
358 }
359
360 static bool entry_isprotected(uint64_t entry)
361 {
362 return (entry & ZPCI_TABLE_PROT_MASK) == ZPCI_TABLE_PROTECTED;
363 }
364
365 /* ett is expected table type, -1 page table, 0 segment table, 1 region table */
366 static uint64_t get_table_index(uint64_t iova, int8_t ett)
367 {
368 switch (ett) {
369 case ZPCI_ETT_PT:
370 return calc_px(iova);
371 case ZPCI_ETT_ST:
372 return calc_sx(iova);
373 case ZPCI_ETT_RT:
374 return calc_rtx(iova);
375 }
376
377 return -1;
378 }
379
380 static bool entry_isvalid(uint64_t entry, int8_t ett)
381 {
382 switch (ett) {
383 case ZPCI_ETT_PT:
384 return pt_entry_isvalid(entry);
385 case ZPCI_ETT_ST:
386 case ZPCI_ETT_RT:
387 return rt_entry_isvalid(entry);
388 }
389
390 return false;
391 }
392
393 /* Return true if address translation is done */
394 static bool translate_iscomplete(uint64_t entry, int8_t ett)
395 {
396 switch (ett) {
397 case 0:
398 return (entry & ZPCI_TABLE_FC) ? true : false;
399 case 1:
400 return false;
401 }
402
403 return true;
404 }
405
406 static uint64_t get_frame_size(int8_t ett)
407 {
408 switch (ett) {
409 case ZPCI_ETT_PT:
410 return 1ULL << 12;
411 case ZPCI_ETT_ST:
412 return 1ULL << 20;
413 case ZPCI_ETT_RT:
414 return 1ULL << 31;
415 }
416
417 return 0;
418 }
419
420 static uint64_t get_next_table_origin(uint64_t entry, int8_t ett)
421 {
422 switch (ett) {
423 case ZPCI_ETT_PT:
424 return entry & ZPCI_PTE_ADDR_MASK;
425 case ZPCI_ETT_ST:
426 return get_st_pto(entry);
427 case ZPCI_ETT_RT:
428 return get_rt_sto(entry);
429 }
430
431 return 0;
432 }
433
434 /**
435 * table_translate: do translation within one table and return the following
436 * table origin
437 *
438 * @entry: the entry being translated, the result is stored in this.
439 * @to: the address of table origin.
440 * @ett: expected table type, 1 region table, 0 segment table and -1 page table.
441 * @error: error code
442 */
443 static uint64_t table_translate(S390IOTLBEntry *entry, uint64_t to, int8_t ett,
444 uint16_t *error)
445 {
446 uint64_t tx, te, nto = 0;
447 uint16_t err = 0;
448
449 tx = get_table_index(entry->iova, ett);
450 te = address_space_ldq(&address_space_memory, to + tx * sizeof(uint64_t),
451 MEMTXATTRS_UNSPECIFIED, NULL);
452
453 if (!te) {
454 err = ERR_EVENT_INVALTE;
455 goto out;
456 }
457
458 if (!entry_isvalid(te, ett)) {
459 entry->perm &= IOMMU_NONE;
460 goto out;
461 }
462
463 if (ett == ZPCI_ETT_RT && ((te & ZPCI_TABLE_LEN_RTX) != ZPCI_TABLE_LEN_RTX
464 || te & ZPCI_TABLE_OFFSET_MASK)) {
465 err = ERR_EVENT_INVALTL;
466 goto out;
467 }
468
469 nto = get_next_table_origin(te, ett);
470 if (!nto) {
471 err = ERR_EVENT_TT;
472 goto out;
473 }
474
475 if (entry_isprotected(te)) {
476 entry->perm &= IOMMU_RO;
477 } else {
478 entry->perm &= IOMMU_RW;
479 }
480
481 if (translate_iscomplete(te, ett)) {
482 switch (ett) {
483 case ZPCI_ETT_PT:
484 entry->translated_addr = te & ZPCI_PTE_ADDR_MASK;
485 break;
486 case ZPCI_ETT_ST:
487 entry->translated_addr = (te & ZPCI_SFAA_MASK) |
488 (entry->iova & ~ZPCI_SFAA_MASK);
489 break;
490 }
491 nto = 0;
492 }
493 out:
494 if (err) {
495 entry->perm = IOMMU_NONE;
496 *error = err;
497 }
498 entry->len = get_frame_size(ett);
499 return nto;
500 }
501
502 uint16_t s390_guest_io_table_walk(uint64_t g_iota, hwaddr addr,
503 S390IOTLBEntry *entry)
504 {
505 uint64_t to = s390_pci_get_table_origin(g_iota);
506 int8_t ett = 1;
507 uint16_t error = 0;
508
509 entry->iova = addr & PAGE_MASK;
510 entry->translated_addr = 0;
511 entry->perm = IOMMU_RW;
512
513 if (entry_isprotected(g_iota)) {
514 entry->perm &= IOMMU_RO;
515 }
516
517 while (to) {
518 to = table_translate(entry, to, ett--, &error);
519 }
520
521 return error;
522 }
523
524 static IOMMUTLBEntry s390_translate_iommu(IOMMUMemoryRegion *mr, hwaddr addr,
525 IOMMUAccessFlags flag, int iommu_idx)
526 {
527 S390PCIIOMMU *iommu = container_of(mr, S390PCIIOMMU, iommu_mr);
528 S390IOTLBEntry *entry;
529 uint64_t iova = addr & PAGE_MASK;
530 uint16_t error = 0;
531 IOMMUTLBEntry ret = {
532 .target_as = &address_space_memory,
533 .iova = 0,
534 .translated_addr = 0,
535 .addr_mask = ~(hwaddr)0,
536 .perm = IOMMU_NONE,
537 };
538
539 switch (iommu->pbdev->state) {
540 case ZPCI_FS_ENABLED:
541 case ZPCI_FS_BLOCKED:
542 if (!iommu->enabled) {
543 return ret;
544 }
545 break;
546 default:
547 return ret;
548 }
549
550 DPRINTF("iommu trans addr 0x%" PRIx64 "\n", addr);
551
552 if (addr < iommu->pba || addr > iommu->pal) {
553 error = ERR_EVENT_OORANGE;
554 goto err;
555 }
556
557 entry = g_hash_table_lookup(iommu->iotlb, &iova);
558 if (entry) {
559 ret.iova = entry->iova;
560 ret.translated_addr = entry->translated_addr;
561 ret.addr_mask = entry->len - 1;
562 ret.perm = entry->perm;
563 } else {
564 ret.iova = iova;
565 ret.addr_mask = ~PAGE_MASK;
566 ret.perm = IOMMU_NONE;
567 }
568
569 if (flag != IOMMU_NONE && !(flag & ret.perm)) {
570 error = ERR_EVENT_TPROTE;
571 }
572 err:
573 if (error) {
574 iommu->pbdev->state = ZPCI_FS_ERROR;
575 s390_pci_generate_error_event(error, iommu->pbdev->fh,
576 iommu->pbdev->fid, addr, 0);
577 }
578 return ret;
579 }
580
581 static void s390_pci_iommu_replay(IOMMUMemoryRegion *iommu,
582 IOMMUNotifier *notifier)
583 {
584 /* It's impossible to plug a pci device on s390x that already has iommu
585 * mappings which need to be replayed, that is due to the "one iommu per
586 * zpci device" construct. But when we support migration of vfio-pci
587 * devices in future, we need to revisit this.
588 */
589 return;
590 }
591
592 static S390PCIIOMMU *s390_pci_get_iommu(S390pciState *s, PCIBus *bus,
593 int devfn)
594 {
595 uint64_t key = (uintptr_t)bus;
596 S390PCIIOMMUTable *table = g_hash_table_lookup(s->iommu_table, &key);
597 S390PCIIOMMU *iommu;
598
599 if (!table) {
600 table = g_new0(S390PCIIOMMUTable, 1);
601 table->key = key;
602 g_hash_table_insert(s->iommu_table, &table->key, table);
603 }
604
605 iommu = table->iommu[PCI_SLOT(devfn)];
606 if (!iommu) {
607 iommu = S390_PCI_IOMMU(object_new(TYPE_S390_PCI_IOMMU));
608
609 char *mr_name = g_strdup_printf("iommu-root-%02x:%02x.%01x",
610 pci_bus_num(bus),
611 PCI_SLOT(devfn),
612 PCI_FUNC(devfn));
613 char *as_name = g_strdup_printf("iommu-pci-%02x:%02x.%01x",
614 pci_bus_num(bus),
615 PCI_SLOT(devfn),
616 PCI_FUNC(devfn));
617 memory_region_init(&iommu->mr, OBJECT(iommu), mr_name, UINT64_MAX);
618 address_space_init(&iommu->as, &iommu->mr, as_name);
619 iommu->iotlb = g_hash_table_new_full(g_int64_hash, g_int64_equal,
620 NULL, g_free);
621 table->iommu[PCI_SLOT(devfn)] = iommu;
622
623 g_free(mr_name);
624 g_free(as_name);
625 }
626
627 return iommu;
628 }
629
630 static AddressSpace *s390_pci_dma_iommu(PCIBus *bus, void *opaque, int devfn)
631 {
632 S390pciState *s = opaque;
633 S390PCIIOMMU *iommu = s390_pci_get_iommu(s, bus, devfn);
634
635 return &iommu->as;
636 }
637
638 static uint8_t set_ind_atomic(uint64_t ind_loc, uint8_t to_be_set)
639 {
640 uint8_t expected, actual;
641 hwaddr len = 1;
642 /* avoid multiple fetches */
643 uint8_t volatile *ind_addr;
644
645 ind_addr = cpu_physical_memory_map(ind_loc, &len, true);
646 if (!ind_addr) {
647 s390_pci_generate_error_event(ERR_EVENT_AIRERR, 0, 0, 0, 0);
648 return -1;
649 }
650 actual = *ind_addr;
651 do {
652 expected = actual;
653 actual = atomic_cmpxchg(ind_addr, expected, expected | to_be_set);
654 } while (actual != expected);
655 cpu_physical_memory_unmap((void *)ind_addr, len, 1, len);
656
657 return actual;
658 }
659
660 static void s390_msi_ctrl_write(void *opaque, hwaddr addr, uint64_t data,
661 unsigned int size)
662 {
663 S390PCIBusDevice *pbdev = opaque;
664 uint32_t vec = data & ZPCI_MSI_VEC_MASK;
665 uint64_t ind_bit;
666 uint32_t sum_bit;
667
668 assert(pbdev);
669 DPRINTF("write_msix data 0x%" PRIx64 " idx %d vec 0x%x\n", data,
670 pbdev->idx, vec);
671
672 if (pbdev->state != ZPCI_FS_ENABLED) {
673 return;
674 }
675
676 ind_bit = pbdev->routes.adapter.ind_offset;
677 sum_bit = pbdev->routes.adapter.summary_offset;
678
679 set_ind_atomic(pbdev->routes.adapter.ind_addr + (ind_bit + vec) / 8,
680 0x80 >> ((ind_bit + vec) % 8));
681 if (!set_ind_atomic(pbdev->routes.adapter.summary_addr + sum_bit / 8,
682 0x80 >> (sum_bit % 8))) {
683 css_adapter_interrupt(CSS_IO_ADAPTER_PCI, pbdev->isc);
684 }
685 }
686
687 static uint64_t s390_msi_ctrl_read(void *opaque, hwaddr addr, unsigned size)
688 {
689 return 0xffffffff;
690 }
691
692 static const MemoryRegionOps s390_msi_ctrl_ops = {
693 .write = s390_msi_ctrl_write,
694 .read = s390_msi_ctrl_read,
695 .endianness = DEVICE_LITTLE_ENDIAN,
696 };
697
698 void s390_pci_iommu_enable(S390PCIIOMMU *iommu)
699 {
700 /*
701 * The iommu region is initialized against a 0-mapped address space,
702 * so the smallest IOMMU region we can define runs from 0 to the end
703 * of the PCI address space.
704 */
705 char *name = g_strdup_printf("iommu-s390-%04x", iommu->pbdev->uid);
706 memory_region_init_iommu(&iommu->iommu_mr, sizeof(iommu->iommu_mr),
707 TYPE_S390_IOMMU_MEMORY_REGION, OBJECT(&iommu->mr),
708 name, iommu->pal + 1);
709 iommu->enabled = true;
710 memory_region_add_subregion(&iommu->mr, 0, MEMORY_REGION(&iommu->iommu_mr));
711 g_free(name);
712 }
713
714 void s390_pci_iommu_disable(S390PCIIOMMU *iommu)
715 {
716 iommu->enabled = false;
717 g_hash_table_remove_all(iommu->iotlb);
718 memory_region_del_subregion(&iommu->mr, MEMORY_REGION(&iommu->iommu_mr));
719 object_unparent(OBJECT(&iommu->iommu_mr));
720 }
721
722 static void s390_pci_iommu_free(S390pciState *s, PCIBus *bus, int32_t devfn)
723 {
724 uint64_t key = (uintptr_t)bus;
725 S390PCIIOMMUTable *table = g_hash_table_lookup(s->iommu_table, &key);
726 S390PCIIOMMU *iommu = table ? table->iommu[PCI_SLOT(devfn)] : NULL;
727
728 if (!table || !iommu) {
729 return;
730 }
731
732 table->iommu[PCI_SLOT(devfn)] = NULL;
733 g_hash_table_destroy(iommu->iotlb);
734 address_space_destroy(&iommu->as);
735 object_unparent(OBJECT(&iommu->mr));
736 object_unparent(OBJECT(iommu));
737 object_unref(OBJECT(iommu));
738 }
739
740 static void s390_pcihost_realize(DeviceState *dev, Error **errp)
741 {
742 PCIBus *b;
743 BusState *bus;
744 PCIHostState *phb = PCI_HOST_BRIDGE(dev);
745 S390pciState *s = S390_PCI_HOST_BRIDGE(dev);
746 Error *local_err = NULL;
747
748 DPRINTF("host_init\n");
749
750 b = pci_register_root_bus(dev, NULL, s390_pci_set_irq, s390_pci_map_irq,
751 NULL, get_system_memory(), get_system_io(), 0,
752 64, TYPE_PCI_BUS);
753 pci_setup_iommu(b, s390_pci_dma_iommu, s);
754
755 bus = BUS(b);
756 qbus_set_hotplug_handler(bus, OBJECT(dev));
757 phb->bus = b;
758
759 s->bus = S390_PCI_BUS(qbus_create(TYPE_S390_PCI_BUS, dev, NULL));
760 qbus_set_hotplug_handler(BUS(s->bus), OBJECT(dev));
761
762 s->iommu_table = g_hash_table_new_full(g_int64_hash, g_int64_equal,
763 NULL, g_free);
764 s->zpci_table = g_hash_table_new_full(g_int_hash, g_int_equal, NULL, NULL);
765 s->bus_no = 0;
766 QTAILQ_INIT(&s->pending_sei);
767 QTAILQ_INIT(&s->zpci_devs);
768
769 css_register_io_adapters(CSS_IO_ADAPTER_PCI, true, false,
770 S390_ADAPTER_SUPPRESSIBLE, &local_err);
771 error_propagate(errp, local_err);
772 }
773
774 static int s390_pci_msix_init(S390PCIBusDevice *pbdev)
775 {
776 char *name;
777 uint8_t pos;
778 uint16_t ctrl;
779 uint32_t table, pba;
780
781 pos = pci_find_capability(pbdev->pdev, PCI_CAP_ID_MSIX);
782 if (!pos) {
783 return -1;
784 }
785
786 ctrl = pci_host_config_read_common(pbdev->pdev, pos + PCI_MSIX_FLAGS,
787 pci_config_size(pbdev->pdev), sizeof(ctrl));
788 table = pci_host_config_read_common(pbdev->pdev, pos + PCI_MSIX_TABLE,
789 pci_config_size(pbdev->pdev), sizeof(table));
790 pba = pci_host_config_read_common(pbdev->pdev, pos + PCI_MSIX_PBA,
791 pci_config_size(pbdev->pdev), sizeof(pba));
792
793 pbdev->msix.table_bar = table & PCI_MSIX_FLAGS_BIRMASK;
794 pbdev->msix.table_offset = table & ~PCI_MSIX_FLAGS_BIRMASK;
795 pbdev->msix.pba_bar = pba & PCI_MSIX_FLAGS_BIRMASK;
796 pbdev->msix.pba_offset = pba & ~PCI_MSIX_FLAGS_BIRMASK;
797 pbdev->msix.entries = (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1;
798
799 name = g_strdup_printf("msix-s390-%04x", pbdev->uid);
800 memory_region_init_io(&pbdev->msix_notify_mr, OBJECT(pbdev),
801 &s390_msi_ctrl_ops, pbdev, name, PAGE_SIZE);
802 memory_region_add_subregion(&pbdev->iommu->mr, ZPCI_MSI_ADDR,
803 &pbdev->msix_notify_mr);
804 g_free(name);
805
806 return 0;
807 }
808
809 static void s390_pci_msix_free(S390PCIBusDevice *pbdev)
810 {
811 memory_region_del_subregion(&pbdev->iommu->mr, &pbdev->msix_notify_mr);
812 object_unparent(OBJECT(&pbdev->msix_notify_mr));
813 }
814
815 static S390PCIBusDevice *s390_pci_device_new(S390pciState *s,
816 const char *target, Error **errp)
817 {
818 Error *local_err = NULL;
819 DeviceState *dev;
820
821 dev = qdev_try_new(TYPE_S390_PCI_DEVICE);
822 if (!dev) {
823 error_setg(errp, "zPCI device could not be created");
824 return NULL;
825 }
826
827 object_property_set_str(OBJECT(dev), target, "target", &local_err);
828 if (local_err) {
829 object_unparent(OBJECT(dev));
830 error_propagate_prepend(errp, local_err,
831 "zPCI device could not be created: ");
832 return NULL;
833 }
834 qdev_realize_and_unref(dev, BUS(s->bus), &local_err);
835 if (local_err) {
836 object_unparent(OBJECT(dev));
837 error_propagate_prepend(errp, local_err,
838 "zPCI device could not be created: ");
839 return NULL;
840 }
841
842 return S390_PCI_DEVICE(dev);
843 }
844
845 static bool s390_pci_alloc_idx(S390pciState *s, S390PCIBusDevice *pbdev)
846 {
847 uint32_t idx;
848
849 idx = s->next_idx;
850 while (s390_pci_find_dev_by_idx(s, idx)) {
851 idx = (idx + 1) & FH_MASK_INDEX;
852 if (idx == s->next_idx) {
853 return false;
854 }
855 }
856
857 pbdev->idx = idx;
858 return true;
859 }
860
861 static void s390_pcihost_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
862 Error **errp)
863 {
864 S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
865
866 if (!s390_has_feat(S390_FEAT_ZPCI)) {
867 warn_report("Plugging a PCI/zPCI device without the 'zpci' CPU "
868 "feature enabled; the guest will not be able to see/use "
869 "this device");
870 }
871
872 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
873 PCIDevice *pdev = PCI_DEVICE(dev);
874
875 if (pdev->cap_present & QEMU_PCI_CAP_MULTIFUNCTION) {
876 error_setg(errp, "multifunction not supported in s390");
877 return;
878 }
879 } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
880 S390PCIBusDevice *pbdev = S390_PCI_DEVICE(dev);
881
882 if (!s390_pci_alloc_idx(s, pbdev)) {
883 error_setg(errp, "no slot for plugging zpci device");
884 return;
885 }
886 }
887 }
888
889 static void s390_pci_update_subordinate(PCIDevice *dev, uint32_t nr)
890 {
891 uint32_t old_nr;
892
893 pci_default_write_config(dev, PCI_SUBORDINATE_BUS, nr, 1);
894 while (!pci_bus_is_root(pci_get_bus(dev))) {
895 dev = pci_get_bus(dev)->parent_dev;
896
897 old_nr = pci_default_read_config(dev, PCI_SUBORDINATE_BUS, 1);
898 if (old_nr < nr) {
899 pci_default_write_config(dev, PCI_SUBORDINATE_BUS, nr, 1);
900 }
901 }
902 }
903
904 static void s390_pcihost_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
905 Error **errp)
906 {
907 S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
908 PCIDevice *pdev = NULL;
909 S390PCIBusDevice *pbdev = NULL;
910
911 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
912 PCIBridge *pb = PCI_BRIDGE(dev);
913
914 pdev = PCI_DEVICE(dev);
915 pci_bridge_map_irq(pb, dev->id, s390_pci_map_irq);
916 pci_setup_iommu(&pb->sec_bus, s390_pci_dma_iommu, s);
917
918 qbus_set_hotplug_handler(BUS(&pb->sec_bus), OBJECT(s));
919
920 if (dev->hotplugged) {
921 pci_default_write_config(pdev, PCI_PRIMARY_BUS,
922 pci_dev_bus_num(pdev), 1);
923 s->bus_no += 1;
924 pci_default_write_config(pdev, PCI_SECONDARY_BUS, s->bus_no, 1);
925
926 s390_pci_update_subordinate(pdev, s->bus_no);
927 }
928 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
929 pdev = PCI_DEVICE(dev);
930
931 if (!dev->id) {
932 /* In the case the PCI device does not define an id */
933 /* we generate one based on the PCI address */
934 dev->id = g_strdup_printf("auto_%02x:%02x.%01x",
935 pci_dev_bus_num(pdev),
936 PCI_SLOT(pdev->devfn),
937 PCI_FUNC(pdev->devfn));
938 }
939
940 pbdev = s390_pci_find_dev_by_target(s, dev->id);
941 if (!pbdev) {
942 pbdev = s390_pci_device_new(s, dev->id, errp);
943 if (!pbdev) {
944 return;
945 }
946 }
947
948 if (object_dynamic_cast(OBJECT(dev), "vfio-pci")) {
949 pbdev->fh |= FH_SHM_VFIO;
950 } else {
951 pbdev->fh |= FH_SHM_EMUL;
952 }
953
954 pbdev->pdev = pdev;
955 pbdev->iommu = s390_pci_get_iommu(s, pci_get_bus(pdev), pdev->devfn);
956 pbdev->iommu->pbdev = pbdev;
957 pbdev->state = ZPCI_FS_DISABLED;
958
959 if (s390_pci_msix_init(pbdev)) {
960 error_setg(errp, "MSI-X support is mandatory "
961 "in the S390 architecture");
962 return;
963 }
964
965 if (dev->hotplugged) {
966 s390_pci_generate_plug_event(HP_EVENT_TO_CONFIGURED ,
967 pbdev->fh, pbdev->fid);
968 }
969 } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
970 pbdev = S390_PCI_DEVICE(dev);
971
972 /* the allocated idx is actually getting used */
973 s->next_idx = (pbdev->idx + 1) & FH_MASK_INDEX;
974 pbdev->fh = pbdev->idx;
975 QTAILQ_INSERT_TAIL(&s->zpci_devs, pbdev, link);
976 g_hash_table_insert(s->zpci_table, &pbdev->idx, pbdev);
977 } else {
978 g_assert_not_reached();
979 }
980 }
981
982 static void s390_pcihost_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
983 Error **errp)
984 {
985 S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
986 S390PCIBusDevice *pbdev = NULL;
987
988 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
989 PCIDevice *pci_dev = PCI_DEVICE(dev);
990 PCIBus *bus;
991 int32_t devfn;
992
993 pbdev = s390_pci_find_dev_by_pci(s, PCI_DEVICE(dev));
994 g_assert(pbdev);
995
996 s390_pci_generate_plug_event(HP_EVENT_STANDBY_TO_RESERVED,
997 pbdev->fh, pbdev->fid);
998 bus = pci_get_bus(pci_dev);
999 devfn = pci_dev->devfn;
1000 qdev_unrealize(dev);
1001
1002 s390_pci_msix_free(pbdev);
1003 s390_pci_iommu_free(s, bus, devfn);
1004 pbdev->pdev = NULL;
1005 pbdev->state = ZPCI_FS_RESERVED;
1006 } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
1007 pbdev = S390_PCI_DEVICE(dev);
1008 pbdev->fid = 0;
1009 QTAILQ_REMOVE(&s->zpci_devs, pbdev, link);
1010 g_hash_table_remove(s->zpci_table, &pbdev->idx);
1011 qdev_unrealize(dev);
1012 }
1013 }
1014
1015 static void s390_pcihost_unplug_request(HotplugHandler *hotplug_dev,
1016 DeviceState *dev,
1017 Error **errp)
1018 {
1019 S390pciState *s = S390_PCI_HOST_BRIDGE(hotplug_dev);
1020 S390PCIBusDevice *pbdev;
1021
1022 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
1023 error_setg(errp, "PCI bridge hot unplug currently not supported");
1024 } else if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_DEVICE)) {
1025 /*
1026 * Redirect the unplug request to the zPCI device and remember that
1027 * we've checked the PCI device already (to prevent endless recursion).
1028 */
1029 pbdev = s390_pci_find_dev_by_pci(s, PCI_DEVICE(dev));
1030 g_assert(pbdev);
1031 pbdev->pci_unplug_request_processed = true;
1032 qdev_unplug(DEVICE(pbdev), errp);
1033 } else if (object_dynamic_cast(OBJECT(dev), TYPE_S390_PCI_DEVICE)) {
1034 pbdev = S390_PCI_DEVICE(dev);
1035
1036 /*
1037 * If unplug was initially requested for the zPCI device, we
1038 * first have to redirect to the PCI device, which will in return
1039 * redirect back to us after performing its checks (if the request
1040 * is not blocked, e.g. because it's a PCI bridge).
1041 */
1042 if (pbdev->pdev && !pbdev->pci_unplug_request_processed) {
1043 qdev_unplug(DEVICE(pbdev->pdev), errp);
1044 return;
1045 }
1046 pbdev->pci_unplug_request_processed = false;
1047
1048 switch (pbdev->state) {
1049 case ZPCI_FS_STANDBY:
1050 case ZPCI_FS_RESERVED:
1051 s390_pci_perform_unplug(pbdev);
1052 break;
1053 default:
1054 /*
1055 * Allow to send multiple requests, e.g. if the guest crashed
1056 * before releasing the device, we would not be able to send
1057 * another request to the same VM (e.g. fresh OS).
1058 */
1059 pbdev->unplug_requested = true;
1060 s390_pci_generate_plug_event(HP_EVENT_DECONFIGURE_REQUEST,
1061 pbdev->fh, pbdev->fid);
1062 }
1063 } else {
1064 g_assert_not_reached();
1065 }
1066 }
1067
1068 static void s390_pci_enumerate_bridge(PCIBus *bus, PCIDevice *pdev,
1069 void *opaque)
1070 {
1071 S390pciState *s = opaque;
1072 PCIBus *sec_bus = NULL;
1073
1074 if ((pci_default_read_config(pdev, PCI_HEADER_TYPE, 1) !=
1075 PCI_HEADER_TYPE_BRIDGE)) {
1076 return;
1077 }
1078
1079 (s->bus_no)++;
1080 pci_default_write_config(pdev, PCI_PRIMARY_BUS, pci_dev_bus_num(pdev), 1);
1081 pci_default_write_config(pdev, PCI_SECONDARY_BUS, s->bus_no, 1);
1082 pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, s->bus_no, 1);
1083
1084 sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
1085 if (!sec_bus) {
1086 return;
1087 }
1088
1089 /* Assign numbers to all child bridges. The last is the highest number. */
1090 pci_for_each_device(sec_bus, pci_bus_num(sec_bus),
1091 s390_pci_enumerate_bridge, s);
1092 pci_default_write_config(pdev, PCI_SUBORDINATE_BUS, s->bus_no, 1);
1093 }
1094
1095 static void s390_pcihost_reset(DeviceState *dev)
1096 {
1097 S390pciState *s = S390_PCI_HOST_BRIDGE(dev);
1098 PCIBus *bus = s->parent_obj.bus;
1099 S390PCIBusDevice *pbdev, *next;
1100
1101 /* Process all pending unplug requests */
1102 QTAILQ_FOREACH_SAFE(pbdev, &s->zpci_devs, link, next) {
1103 if (pbdev->unplug_requested) {
1104 if (pbdev->summary_ind) {
1105 pci_dereg_irqs(pbdev);
1106 }
1107 if (pbdev->iommu->enabled) {
1108 pci_dereg_ioat(pbdev->iommu);
1109 }
1110 pbdev->state = ZPCI_FS_STANDBY;
1111 s390_pci_perform_unplug(pbdev);
1112 }
1113 }
1114
1115 /*
1116 * When resetting a PCI bridge, the assigned numbers are set to 0. So
1117 * on every system reset, we also have to reassign numbers.
1118 */
1119 s->bus_no = 0;
1120 pci_for_each_device(bus, pci_bus_num(bus), s390_pci_enumerate_bridge, s);
1121 }
1122
1123 static void s390_pcihost_class_init(ObjectClass *klass, void *data)
1124 {
1125 DeviceClass *dc = DEVICE_CLASS(klass);
1126 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
1127
1128 dc->reset = s390_pcihost_reset;
1129 dc->realize = s390_pcihost_realize;
1130 hc->pre_plug = s390_pcihost_pre_plug;
1131 hc->plug = s390_pcihost_plug;
1132 hc->unplug_request = s390_pcihost_unplug_request;
1133 hc->unplug = s390_pcihost_unplug;
1134 msi_nonbroken = true;
1135 }
1136
1137 static const TypeInfo s390_pcihost_info = {
1138 .name = TYPE_S390_PCI_HOST_BRIDGE,
1139 .parent = TYPE_PCI_HOST_BRIDGE,
1140 .instance_size = sizeof(S390pciState),
1141 .class_init = s390_pcihost_class_init,
1142 .interfaces = (InterfaceInfo[]) {
1143 { TYPE_HOTPLUG_HANDLER },
1144 { }
1145 }
1146 };
1147
1148 static const TypeInfo s390_pcibus_info = {
1149 .name = TYPE_S390_PCI_BUS,
1150 .parent = TYPE_BUS,
1151 .instance_size = sizeof(S390PCIBus),
1152 };
1153
1154 static uint16_t s390_pci_generate_uid(S390pciState *s)
1155 {
1156 uint16_t uid = 0;
1157
1158 do {
1159 uid++;
1160 if (!s390_pci_find_dev_by_uid(s, uid)) {
1161 return uid;
1162 }
1163 } while (uid < ZPCI_MAX_UID);
1164
1165 return UID_UNDEFINED;
1166 }
1167
1168 static uint32_t s390_pci_generate_fid(S390pciState *s, Error **errp)
1169 {
1170 uint32_t fid = 0;
1171
1172 do {
1173 if (!s390_pci_find_dev_by_fid(s, fid)) {
1174 return fid;
1175 }
1176 } while (fid++ != ZPCI_MAX_FID);
1177
1178 error_setg(errp, "no free fid could be found");
1179 return 0;
1180 }
1181
1182 static void s390_pci_device_realize(DeviceState *dev, Error **errp)
1183 {
1184 S390PCIBusDevice *zpci = S390_PCI_DEVICE(dev);
1185 S390pciState *s = s390_get_phb();
1186
1187 if (!zpci->target) {
1188 error_setg(errp, "target must be defined");
1189 return;
1190 }
1191
1192 if (s390_pci_find_dev_by_target(s, zpci->target)) {
1193 error_setg(errp, "target %s already has an associated zpci device",
1194 zpci->target);
1195 return;
1196 }
1197
1198 if (zpci->uid == UID_UNDEFINED) {
1199 zpci->uid = s390_pci_generate_uid(s);
1200 if (!zpci->uid) {
1201 error_setg(errp, "no free uid could be found");
1202 return;
1203 }
1204 } else if (s390_pci_find_dev_by_uid(s, zpci->uid)) {
1205 error_setg(errp, "uid %u already in use", zpci->uid);
1206 return;
1207 }
1208
1209 if (!zpci->fid_defined) {
1210 Error *local_error = NULL;
1211
1212 zpci->fid = s390_pci_generate_fid(s, &local_error);
1213 if (local_error) {
1214 error_propagate(errp, local_error);
1215 return;
1216 }
1217 } else if (s390_pci_find_dev_by_fid(s, zpci->fid)) {
1218 error_setg(errp, "fid %u already in use", zpci->fid);
1219 return;
1220 }
1221
1222 zpci->state = ZPCI_FS_RESERVED;
1223 zpci->fmb.format = ZPCI_FMB_FORMAT;
1224 }
1225
1226 static void s390_pci_device_reset(DeviceState *dev)
1227 {
1228 S390PCIBusDevice *pbdev = S390_PCI_DEVICE(dev);
1229
1230 switch (pbdev->state) {
1231 case ZPCI_FS_RESERVED:
1232 return;
1233 case ZPCI_FS_STANDBY:
1234 break;
1235 default:
1236 pbdev->fh &= ~FH_MASK_ENABLE;
1237 pbdev->state = ZPCI_FS_DISABLED;
1238 break;
1239 }
1240
1241 if (pbdev->summary_ind) {
1242 pci_dereg_irqs(pbdev);
1243 }
1244 if (pbdev->iommu->enabled) {
1245 pci_dereg_ioat(pbdev->iommu);
1246 }
1247
1248 fmb_timer_free(pbdev);
1249 }
1250
1251 static void s390_pci_get_fid(Object *obj, Visitor *v, const char *name,
1252 void *opaque, Error **errp)
1253 {
1254 Property *prop = opaque;
1255 uint32_t *ptr = qdev_get_prop_ptr(DEVICE(obj), prop);
1256
1257 visit_type_uint32(v, name, ptr, errp);
1258 }
1259
1260 static void s390_pci_set_fid(Object *obj, Visitor *v, const char *name,
1261 void *opaque, Error **errp)
1262 {
1263 DeviceState *dev = DEVICE(obj);
1264 S390PCIBusDevice *zpci = S390_PCI_DEVICE(obj);
1265 Property *prop = opaque;
1266 uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
1267
1268 if (dev->realized) {
1269 qdev_prop_set_after_realize(dev, name, errp);
1270 return;
1271 }
1272
1273 visit_type_uint32(v, name, ptr, errp);
1274 zpci->fid_defined = true;
1275 }
1276
1277 static const PropertyInfo s390_pci_fid_propinfo = {
1278 .name = "zpci_fid",
1279 .get = s390_pci_get_fid,
1280 .set = s390_pci_set_fid,
1281 };
1282
1283 #define DEFINE_PROP_S390_PCI_FID(_n, _s, _f) \
1284 DEFINE_PROP(_n, _s, _f, s390_pci_fid_propinfo, uint32_t)
1285
1286 static Property s390_pci_device_properties[] = {
1287 DEFINE_PROP_UINT16("uid", S390PCIBusDevice, uid, UID_UNDEFINED),
1288 DEFINE_PROP_S390_PCI_FID("fid", S390PCIBusDevice, fid),
1289 DEFINE_PROP_STRING("target", S390PCIBusDevice, target),
1290 DEFINE_PROP_END_OF_LIST(),
1291 };
1292
1293 static const VMStateDescription s390_pci_device_vmstate = {
1294 .name = TYPE_S390_PCI_DEVICE,
1295 /*
1296 * TODO: add state handling here, so migration works at least with
1297 * emulated pci devices on s390x
1298 */
1299 .unmigratable = 1,
1300 };
1301
1302 static void s390_pci_device_class_init(ObjectClass *klass, void *data)
1303 {
1304 DeviceClass *dc = DEVICE_CLASS(klass);
1305
1306 dc->desc = "zpci device";
1307 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
1308 dc->reset = s390_pci_device_reset;
1309 dc->bus_type = TYPE_S390_PCI_BUS;
1310 dc->realize = s390_pci_device_realize;
1311 device_class_set_props(dc, s390_pci_device_properties);
1312 dc->vmsd = &s390_pci_device_vmstate;
1313 }
1314
1315 static const TypeInfo s390_pci_device_info = {
1316 .name = TYPE_S390_PCI_DEVICE,
1317 .parent = TYPE_DEVICE,
1318 .instance_size = sizeof(S390PCIBusDevice),
1319 .class_init = s390_pci_device_class_init,
1320 };
1321
1322 static TypeInfo s390_pci_iommu_info = {
1323 .name = TYPE_S390_PCI_IOMMU,
1324 .parent = TYPE_OBJECT,
1325 .instance_size = sizeof(S390PCIIOMMU),
1326 };
1327
1328 static void s390_iommu_memory_region_class_init(ObjectClass *klass, void *data)
1329 {
1330 IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass);
1331
1332 imrc->translate = s390_translate_iommu;
1333 imrc->replay = s390_pci_iommu_replay;
1334 }
1335
1336 static const TypeInfo s390_iommu_memory_region_info = {
1337 .parent = TYPE_IOMMU_MEMORY_REGION,
1338 .name = TYPE_S390_IOMMU_MEMORY_REGION,
1339 .class_init = s390_iommu_memory_region_class_init,
1340 };
1341
1342 static void s390_pci_register_types(void)
1343 {
1344 type_register_static(&s390_pcihost_info);
1345 type_register_static(&s390_pcibus_info);
1346 type_register_static(&s390_pci_device_info);
1347 type_register_static(&s390_pci_iommu_info);
1348 type_register_static(&s390_iommu_memory_region_info);
1349 }
1350
1351 type_init(s390_pci_register_types)