2 * virtio ccw target implementation
4 * Copyright 2012,2015 IBM Corp.
5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
6 * Pierre Morel <pmorel@linux.vnet.ibm.com>
8 * This work is licensed under the terms of the GNU GPL, version 2 or (at
9 * your option) any later version. See the COPYING file in the top-level
13 #include "qemu/osdep.h"
14 #include "qapi/error.h"
16 #include "sysemu/block-backend.h"
17 #include "sysemu/blockdev.h"
18 #include "sysemu/sysemu.h"
19 #include "sysemu/kvm.h"
21 #include "hw/virtio/virtio.h"
22 #include "hw/virtio/virtio-serial.h"
23 #include "hw/virtio/virtio-net.h"
24 #include "hw/sysbus.h"
25 #include "qemu/bitops.h"
26 #include "qemu/error-report.h"
27 #include "hw/virtio/virtio-access.h"
28 #include "hw/virtio/virtio-bus.h"
29 #include "hw/s390x/adapter.h"
30 #include "hw/s390x/s390_flic.h"
32 #include "hw/s390x/ioinst.h"
33 #include "hw/s390x/css.h"
34 #include "virtio-ccw.h"
36 #include "hw/s390x/css-bridge.h"
38 static void virtio_ccw_bus_new(VirtioBusState
*bus
, size_t bus_size
,
39 VirtioCcwDevice
*dev
);
41 VirtIODevice
*virtio_ccw_get_vdev(SubchDev
*sch
)
43 VirtIODevice
*vdev
= NULL
;
44 VirtioCcwDevice
*dev
= sch
->driver_data
;
47 vdev
= virtio_bus_get_device(&dev
->bus
);
52 static void virtio_ccw_start_ioeventfd(VirtioCcwDevice
*dev
)
54 virtio_bus_start_ioeventfd(&dev
->bus
);
57 static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice
*dev
)
59 virtio_bus_stop_ioeventfd(&dev
->bus
);
62 static bool virtio_ccw_ioeventfd_disabled(DeviceState
*d
)
64 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
66 return !(dev
->flags
& VIRTIO_CCW_FLAG_USE_IOEVENTFD
);
69 static int virtio_ccw_ioeventfd_assign(DeviceState
*d
, EventNotifier
*notifier
,
72 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
73 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
74 SubchDev
*sch
= ccw_dev
->sch
;
75 uint32_t sch_id
= (css_build_subchannel_id(sch
) << 16) | sch
->schid
;
77 return s390_assign_subch_ioeventfd(notifier
, sch_id
, n
, assign
);
80 /* Communication blocks used by several channel commands. */
81 typedef struct VqInfoBlockLegacy
{
86 } QEMU_PACKED VqInfoBlockLegacy
;
88 typedef struct VqInfoBlock
{
95 } QEMU_PACKED VqInfoBlock
;
97 typedef struct VqConfigBlock
{
100 } QEMU_PACKED VqConfigBlock
;
102 typedef struct VirtioFeatDesc
{
105 } QEMU_PACKED VirtioFeatDesc
;
107 typedef struct VirtioThinintInfo
{
108 hwaddr summary_indicator
;
109 hwaddr device_indicator
;
112 } QEMU_PACKED VirtioThinintInfo
;
114 typedef struct VirtioRevInfo
{
118 } QEMU_PACKED VirtioRevInfo
;
120 /* Specify where the virtqueues for the subchannel are in guest memory. */
121 static int virtio_ccw_set_vqs(SubchDev
*sch
, VqInfoBlock
*info
,
122 VqInfoBlockLegacy
*linfo
)
124 VirtIODevice
*vdev
= virtio_ccw_get_vdev(sch
);
125 uint16_t index
= info
? info
->index
: linfo
->index
;
126 uint16_t num
= info
? info
->num
: linfo
->num
;
127 uint64_t desc
= info
? info
->desc
: linfo
->queue
;
129 if (index
>= VIRTIO_CCW_QUEUE_MAX
) {
133 /* Current code in virtio.c relies on 4K alignment. */
134 if (linfo
&& desc
&& (linfo
->align
!= 4096)) {
143 virtio_queue_set_rings(vdev
, index
, desc
, info
->avail
, info
->used
);
145 virtio_queue_set_addr(vdev
, index
, desc
);
148 virtio_queue_set_vector(vdev
, index
, VIRTIO_NO_VECTOR
);
151 /* virtio-1 allows changing the ring size. */
152 if (virtio_queue_get_num(vdev
, index
) < num
) {
153 /* Fail if we exceed the maximum number. */
156 virtio_queue_set_num(vdev
, index
, num
);
157 } else if (virtio_queue_get_num(vdev
, index
) > num
) {
158 /* Fail if we don't have a big enough queue. */
161 /* We ignore possible increased num for legacy for compatibility. */
162 virtio_queue_set_vector(vdev
, index
, index
);
164 /* tell notify handler in case of config change */
165 vdev
->config_vector
= VIRTIO_CCW_QUEUE_MAX
;
169 static void virtio_ccw_reset_virtio(VirtioCcwDevice
*dev
, VirtIODevice
*vdev
)
171 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
173 virtio_ccw_stop_ioeventfd(dev
);
175 if (dev
->indicators
) {
176 release_indicator(&dev
->routes
.adapter
, dev
->indicators
);
177 dev
->indicators
= NULL
;
179 if (dev
->indicators2
) {
180 release_indicator(&dev
->routes
.adapter
, dev
->indicators2
);
181 dev
->indicators2
= NULL
;
183 if (dev
->summary_indicator
) {
184 release_indicator(&dev
->routes
.adapter
, dev
->summary_indicator
);
185 dev
->summary_indicator
= NULL
;
187 ccw_dev
->sch
->thinint_active
= false;
190 static int virtio_ccw_handle_set_vq(SubchDev
*sch
, CCW1 ccw
, bool check_len
,
195 VqInfoBlockLegacy linfo
;
196 size_t info_len
= is_legacy
? sizeof(linfo
) : sizeof(info
);
199 if (ccw
.count
!= info_len
) {
202 } else if (ccw
.count
< info_len
) {
203 /* Can't execute command. */
210 linfo
.queue
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
211 MEMTXATTRS_UNSPECIFIED
, NULL
);
212 linfo
.align
= address_space_ldl_be(&address_space_memory
,
213 ccw
.cda
+ sizeof(linfo
.queue
),
214 MEMTXATTRS_UNSPECIFIED
,
216 linfo
.index
= address_space_lduw_be(&address_space_memory
,
217 ccw
.cda
+ sizeof(linfo
.queue
)
218 + sizeof(linfo
.align
),
219 MEMTXATTRS_UNSPECIFIED
,
221 linfo
.num
= address_space_lduw_be(&address_space_memory
,
222 ccw
.cda
+ sizeof(linfo
.queue
)
223 + sizeof(linfo
.align
)
224 + sizeof(linfo
.index
),
225 MEMTXATTRS_UNSPECIFIED
,
227 ret
= virtio_ccw_set_vqs(sch
, NULL
, &linfo
);
229 info
.desc
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
230 MEMTXATTRS_UNSPECIFIED
, NULL
);
231 info
.index
= address_space_lduw_be(&address_space_memory
,
232 ccw
.cda
+ sizeof(info
.desc
)
234 MEMTXATTRS_UNSPECIFIED
, NULL
);
235 info
.num
= address_space_lduw_be(&address_space_memory
,
236 ccw
.cda
+ sizeof(info
.desc
)
238 + sizeof(info
.index
),
239 MEMTXATTRS_UNSPECIFIED
, NULL
);
240 info
.avail
= address_space_ldq_be(&address_space_memory
,
241 ccw
.cda
+ sizeof(info
.desc
)
245 MEMTXATTRS_UNSPECIFIED
, NULL
);
246 info
.used
= address_space_ldq_be(&address_space_memory
,
247 ccw
.cda
+ sizeof(info
.desc
)
251 + sizeof(info
.avail
),
252 MEMTXATTRS_UNSPECIFIED
, NULL
);
253 ret
= virtio_ccw_set_vqs(sch
, &info
, NULL
);
255 sch
->curr_status
.scsw
.count
= 0;
259 static int virtio_ccw_cb(SubchDev
*sch
, CCW1 ccw
)
262 VirtioRevInfo revinfo
;
264 VirtioFeatDesc features
;
267 VqConfigBlock vq_config
;
268 VirtioCcwDevice
*dev
= sch
->driver_data
;
269 VirtIODevice
*vdev
= virtio_ccw_get_vdev(sch
);
273 VirtioThinintInfo
*thinint
;
279 trace_virtio_ccw_interpret_ccw(sch
->cssid
, sch
->ssid
, sch
->schid
,
281 check_len
= !((ccw
.flags
& CCW_FLAG_SLI
) && !(ccw
.flags
& CCW_FLAG_DC
));
283 /* Look at the command. */
284 switch (ccw
.cmd_code
) {
286 ret
= virtio_ccw_handle_set_vq(sch
, ccw
, check_len
, dev
->revision
< 1);
288 case CCW_CMD_VDEV_RESET
:
289 virtio_ccw_reset_virtio(dev
, vdev
);
292 case CCW_CMD_READ_FEAT
:
294 if (ccw
.count
!= sizeof(features
)) {
298 } else if (ccw
.count
< sizeof(features
)) {
299 /* Can't execute command. */
306 features
.index
= address_space_ldub(&address_space_memory
,
308 + sizeof(features
.features
),
309 MEMTXATTRS_UNSPECIFIED
,
311 if (features
.index
== 0) {
312 if (dev
->revision
>= 1) {
313 /* Don't offer legacy features for modern devices. */
314 features
.features
= (uint32_t)
315 (vdev
->host_features
& ~VIRTIO_LEGACY_FEATURES
);
317 features
.features
= (uint32_t)vdev
->host_features
;
319 } else if ((features
.index
== 1) && (dev
->revision
>= 1)) {
321 * Only offer feature bits beyond 31 if the guest has
322 * negotiated at least revision 1.
324 features
.features
= (uint32_t)(vdev
->host_features
>> 32);
326 /* Return zeroes if the guest supports more feature bits. */
327 features
.features
= 0;
329 address_space_stl_le(&address_space_memory
, ccw
.cda
,
330 features
.features
, MEMTXATTRS_UNSPECIFIED
,
332 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(features
);
336 case CCW_CMD_WRITE_FEAT
:
338 if (ccw
.count
!= sizeof(features
)) {
342 } else if (ccw
.count
< sizeof(features
)) {
343 /* Can't execute command. */
350 features
.index
= address_space_ldub(&address_space_memory
,
352 + sizeof(features
.features
),
353 MEMTXATTRS_UNSPECIFIED
,
355 features
.features
= address_space_ldl_le(&address_space_memory
,
357 MEMTXATTRS_UNSPECIFIED
,
359 if (features
.index
== 0) {
360 virtio_set_features(vdev
,
361 (vdev
->guest_features
& 0xffffffff00000000ULL
) |
363 } else if ((features
.index
== 1) && (dev
->revision
>= 1)) {
365 * If the guest did not negotiate at least revision 1,
366 * we did not offer it any feature bits beyond 31. Such a
367 * guest passing us any bit here is therefore buggy.
369 virtio_set_features(vdev
,
370 (vdev
->guest_features
& 0x00000000ffffffffULL
) |
371 ((uint64_t)features
.features
<< 32));
374 * If the guest supports more feature bits, assert that it
375 * passes us zeroes for those we don't support.
377 if (features
.features
) {
378 fprintf(stderr
, "Guest bug: features[%i]=%x (expected 0)\n",
379 features
.index
, features
.features
);
380 /* XXX: do a unit check here? */
383 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(features
);
387 case CCW_CMD_READ_CONF
:
389 if (ccw
.count
> vdev
->config_len
) {
394 len
= MIN(ccw
.count
, vdev
->config_len
);
398 virtio_bus_get_vdev_config(&dev
->bus
, vdev
->config
);
399 /* XXX config space endianness */
400 cpu_physical_memory_write(ccw
.cda
, vdev
->config
, len
);
401 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
405 case CCW_CMD_WRITE_CONF
:
407 if (ccw
.count
> vdev
->config_len
) {
412 len
= MIN(ccw
.count
, vdev
->config_len
);
417 config
= cpu_physical_memory_map(ccw
.cda
, &hw_len
, 0);
422 /* XXX config space endianness */
423 memcpy(vdev
->config
, config
, len
);
424 cpu_physical_memory_unmap(config
, hw_len
, 0, hw_len
);
425 virtio_bus_set_vdev_config(&dev
->bus
, vdev
->config
);
426 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
431 case CCW_CMD_READ_STATUS
:
433 if (ccw
.count
!= sizeof(status
)) {
437 } else if (ccw
.count
< sizeof(status
)) {
438 /* Can't execute command. */
445 address_space_stb(&address_space_memory
, ccw
.cda
, vdev
->status
,
446 MEMTXATTRS_UNSPECIFIED
, NULL
);
447 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(vdev
->status
);;
451 case CCW_CMD_WRITE_STATUS
:
453 if (ccw
.count
!= sizeof(status
)) {
457 } else if (ccw
.count
< sizeof(status
)) {
458 /* Can't execute command. */
465 status
= address_space_ldub(&address_space_memory
, ccw
.cda
,
466 MEMTXATTRS_UNSPECIFIED
, NULL
);
467 if (!(status
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
468 virtio_ccw_stop_ioeventfd(dev
);
470 if (virtio_set_status(vdev
, status
) == 0) {
471 if (vdev
->status
== 0) {
472 virtio_ccw_reset_virtio(dev
, vdev
);
474 if (status
& VIRTIO_CONFIG_S_DRIVER_OK
) {
475 virtio_ccw_start_ioeventfd(dev
);
477 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(status
);
480 /* Trigger a command reject. */
485 case CCW_CMD_SET_IND
:
487 if (ccw
.count
!= sizeof(indicators
)) {
491 } else if (ccw
.count
< sizeof(indicators
)) {
492 /* Can't execute command. */
496 if (sch
->thinint_active
) {
497 /* Trigger a command reject. */
504 indicators
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
505 MEMTXATTRS_UNSPECIFIED
, NULL
);
506 dev
->indicators
= get_indicator(indicators
, sizeof(uint64_t));
507 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(indicators
);
511 case CCW_CMD_SET_CONF_IND
:
513 if (ccw
.count
!= sizeof(indicators
)) {
517 } else if (ccw
.count
< sizeof(indicators
)) {
518 /* Can't execute command. */
525 indicators
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
526 MEMTXATTRS_UNSPECIFIED
, NULL
);
527 dev
->indicators2
= get_indicator(indicators
, sizeof(uint64_t));
528 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(indicators
);
532 case CCW_CMD_READ_VQ_CONF
:
534 if (ccw
.count
!= sizeof(vq_config
)) {
538 } else if (ccw
.count
< sizeof(vq_config
)) {
539 /* Can't execute command. */
546 vq_config
.index
= address_space_lduw_be(&address_space_memory
,
548 MEMTXATTRS_UNSPECIFIED
,
550 if (vq_config
.index
>= VIRTIO_CCW_QUEUE_MAX
) {
554 vq_config
.num_max
= virtio_queue_get_num(vdev
,
556 address_space_stw_be(&address_space_memory
,
557 ccw
.cda
+ sizeof(vq_config
.index
),
559 MEMTXATTRS_UNSPECIFIED
,
561 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(vq_config
);
565 case CCW_CMD_SET_IND_ADAPTER
:
567 if (ccw
.count
!= sizeof(*thinint
)) {
571 } else if (ccw
.count
< sizeof(*thinint
)) {
572 /* Can't execute command. */
576 len
= sizeof(*thinint
);
580 } else if (dev
->indicators
&& !sch
->thinint_active
) {
581 /* Trigger a command reject. */
584 thinint
= cpu_physical_memory_map(ccw
.cda
, &hw_len
, 0);
588 uint64_t ind_bit
= ldq_be_p(&thinint
->ind_bit
);
591 dev
->summary_indicator
=
592 get_indicator(ldq_be_p(&thinint
->summary_indicator
),
595 get_indicator(ldq_be_p(&thinint
->device_indicator
),
597 dev
->thinint_isc
= thinint
->isc
;
598 dev
->routes
.adapter
.ind_offset
= ind_bit
;
599 dev
->routes
.adapter
.summary_offset
= 7;
600 cpu_physical_memory_unmap(thinint
, hw_len
, 0, hw_len
);
601 ret
= css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO
,
602 dev
->thinint_isc
, true, false,
603 &dev
->routes
.adapter
.adapter_id
);
605 sch
->thinint_active
= ((dev
->indicators
!= NULL
) &&
606 (dev
->summary_indicator
!= NULL
));
607 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
612 case CCW_CMD_SET_VIRTIO_REV
:
613 len
= sizeof(revinfo
);
614 if (ccw
.count
< len
) {
623 address_space_lduw_be(&address_space_memory
, ccw
.cda
,
624 MEMTXATTRS_UNSPECIFIED
, NULL
);
626 address_space_lduw_be(&address_space_memory
,
627 ccw
.cda
+ sizeof(revinfo
.revision
),
628 MEMTXATTRS_UNSPECIFIED
, NULL
);
629 if (ccw
.count
< len
+ revinfo
.length
||
630 (check_len
&& ccw
.count
> len
+ revinfo
.length
)) {
635 * Once we start to support revisions with additional data, we'll
636 * need to fetch it here. Nothing to do for now, though.
638 if (dev
->revision
>= 0 ||
639 revinfo
.revision
> virtio_ccw_rev_max(dev
)) {
644 dev
->revision
= revinfo
.revision
;
653 static void virtio_sch_disable_cb(SubchDev
*sch
)
655 VirtioCcwDevice
*dev
= sch
->driver_data
;
660 static void virtio_ccw_device_realize(VirtioCcwDevice
*dev
, Error
**errp
)
662 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_GET_CLASS(dev
);
663 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
664 SubchDev
*sch
= css_create_virtual_sch(ccw_dev
->bus_id
, errp
);
671 sch
->driver_data
= dev
;
672 sch
->ccw_cb
= virtio_ccw_cb
;
673 sch
->disable_cb
= virtio_sch_disable_cb
;
674 sch
->id
.reserved
= 0xff;
675 sch
->id
.cu_type
= VIRTIO_CCW_CU_TYPE
;
677 dev
->indicators
= NULL
;
679 css_sch_build_virtual_schib(sch
, 0, VIRTIO_CCW_CHPID_TYPE
);
681 trace_virtio_ccw_new_device(
682 sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
,
683 ccw_dev
->bus_id
.valid
? "user-configured" : "auto-configured");
685 if (!kvm_eventfds_enabled()) {
686 dev
->flags
&= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD
;
690 k
->realize(dev
, &err
);
693 error_propagate(errp
, err
);
694 css_subch_assign(sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
, NULL
);
700 static int virtio_ccw_exit(VirtioCcwDevice
*dev
)
702 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
703 SubchDev
*sch
= ccw_dev
->sch
;
706 css_subch_assign(sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
, NULL
);
709 if (dev
->indicators
) {
710 release_indicator(&dev
->routes
.adapter
, dev
->indicators
);
711 dev
->indicators
= NULL
;
716 static void virtio_ccw_net_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
718 DeviceState
*qdev
= DEVICE(ccw_dev
);
719 VirtIONetCcw
*dev
= VIRTIO_NET_CCW(ccw_dev
);
720 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
722 virtio_net_set_netclient_name(&dev
->vdev
, qdev
->id
,
723 object_get_typename(OBJECT(qdev
)));
724 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
725 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
728 static void virtio_ccw_net_instance_init(Object
*obj
)
730 VirtIONetCcw
*dev
= VIRTIO_NET_CCW(obj
);
732 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
734 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
735 "bootindex", &error_abort
);
738 static void virtio_ccw_blk_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
740 VirtIOBlkCcw
*dev
= VIRTIO_BLK_CCW(ccw_dev
);
741 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
743 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
744 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
747 static void virtio_ccw_blk_instance_init(Object
*obj
)
749 VirtIOBlkCcw
*dev
= VIRTIO_BLK_CCW(obj
);
751 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
753 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
),"iothread",
755 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
756 "bootindex", &error_abort
);
759 static void virtio_ccw_serial_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
761 VirtioSerialCcw
*dev
= VIRTIO_SERIAL_CCW(ccw_dev
);
762 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
763 DeviceState
*proxy
= DEVICE(ccw_dev
);
767 * For command line compatibility, this sets the virtio-serial-device bus
771 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
772 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
776 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
777 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
781 static void virtio_ccw_serial_instance_init(Object
*obj
)
783 VirtioSerialCcw
*dev
= VIRTIO_SERIAL_CCW(obj
);
785 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
789 static void virtio_ccw_balloon_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
791 VirtIOBalloonCcw
*dev
= VIRTIO_BALLOON_CCW(ccw_dev
);
792 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
794 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
795 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
798 static void virtio_ccw_balloon_instance_init(Object
*obj
)
800 VirtIOBalloonCcw
*dev
= VIRTIO_BALLOON_CCW(obj
);
802 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
803 TYPE_VIRTIO_BALLOON
);
804 object_property_add_alias(obj
, "guest-stats", OBJECT(&dev
->vdev
),
805 "guest-stats", &error_abort
);
806 object_property_add_alias(obj
, "guest-stats-polling-interval",
808 "guest-stats-polling-interval", &error_abort
);
811 static void virtio_ccw_scsi_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
813 VirtIOSCSICcw
*dev
= VIRTIO_SCSI_CCW(ccw_dev
);
814 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
815 DeviceState
*qdev
= DEVICE(ccw_dev
);
819 * For command line compatibility, this sets the virtio-scsi-device bus
823 bus_name
= g_strdup_printf("%s.0", qdev
->id
);
824 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
828 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
829 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
832 static void virtio_ccw_scsi_instance_init(Object
*obj
)
834 VirtIOSCSICcw
*dev
= VIRTIO_SCSI_CCW(obj
);
836 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
838 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
), "iothread",
842 #ifdef CONFIG_VHOST_SCSI
843 static void vhost_ccw_scsi_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
845 VHostSCSICcw
*dev
= VHOST_SCSI_CCW(ccw_dev
);
846 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
848 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
849 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
852 static void vhost_ccw_scsi_instance_init(Object
*obj
)
854 VHostSCSICcw
*dev
= VHOST_SCSI_CCW(obj
);
856 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
861 static void virtio_ccw_rng_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
863 VirtIORNGCcw
*dev
= VIRTIO_RNG_CCW(ccw_dev
);
864 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
867 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
868 object_property_set_bool(OBJECT(vdev
), true, "realized", &err
);
870 error_propagate(errp
, err
);
874 object_property_set_link(OBJECT(dev
),
875 OBJECT(dev
->vdev
.conf
.rng
), "rng",
879 /* DeviceState to VirtioCcwDevice. Note: used on datapath,
880 * be careful and test performance if you change this.
882 static inline VirtioCcwDevice
*to_virtio_ccw_dev_fast(DeviceState
*d
)
884 CcwDevice
*ccw_dev
= to_ccw_dev_fast(d
);
886 return container_of(ccw_dev
, VirtioCcwDevice
, parent_obj
);
889 static uint8_t virtio_set_ind_atomic(SubchDev
*sch
, uint64_t ind_loc
,
892 uint8_t ind_old
, ind_new
;
896 ind_addr
= cpu_physical_memory_map(ind_loc
, &len
, 1);
898 error_report("%s(%x.%x.%04x): unable to access indicator",
899 __func__
, sch
->cssid
, sch
->ssid
, sch
->schid
);
904 ind_new
= ind_old
| to_be_set
;
905 } while (atomic_cmpxchg(ind_addr
, ind_old
, ind_new
) != ind_old
);
906 trace_virtio_ccw_set_ind(ind_loc
, ind_old
, ind_new
);
907 cpu_physical_memory_unmap(ind_addr
, len
, 1, len
);
912 static void virtio_ccw_notify(DeviceState
*d
, uint16_t vector
)
914 VirtioCcwDevice
*dev
= to_virtio_ccw_dev_fast(d
);
915 CcwDevice
*ccw_dev
= to_ccw_dev_fast(d
);
916 SubchDev
*sch
= ccw_dev
->sch
;
919 /* queue indicators + secondary indicators */
920 if (vector
>= VIRTIO_CCW_QUEUE_MAX
+ 64) {
924 if (vector
< VIRTIO_CCW_QUEUE_MAX
) {
925 if (!dev
->indicators
) {
928 if (sch
->thinint_active
) {
930 * In the adapter interrupt case, indicators points to a
931 * memory area that may be (way) larger than 64 bit and
932 * ind_bit indicates the start of the indicators in a big
935 uint64_t ind_bit
= dev
->routes
.adapter
.ind_offset
;
937 virtio_set_ind_atomic(sch
, dev
->indicators
->addr
+
938 (ind_bit
+ vector
) / 8,
939 0x80 >> ((ind_bit
+ vector
) % 8));
940 if (!virtio_set_ind_atomic(sch
, dev
->summary_indicator
->addr
,
942 css_adapter_interrupt(dev
->thinint_isc
);
945 indicators
= address_space_ldq(&address_space_memory
,
946 dev
->indicators
->addr
,
947 MEMTXATTRS_UNSPECIFIED
,
949 indicators
|= 1ULL << vector
;
950 address_space_stq(&address_space_memory
, dev
->indicators
->addr
,
951 indicators
, MEMTXATTRS_UNSPECIFIED
, NULL
);
952 css_conditional_io_interrupt(sch
);
955 if (!dev
->indicators2
) {
959 indicators
= address_space_ldq(&address_space_memory
,
960 dev
->indicators2
->addr
,
961 MEMTXATTRS_UNSPECIFIED
,
963 indicators
|= 1ULL << vector
;
964 address_space_stq(&address_space_memory
, dev
->indicators2
->addr
,
965 indicators
, MEMTXATTRS_UNSPECIFIED
, NULL
);
966 css_conditional_io_interrupt(sch
);
970 static void virtio_ccw_reset(DeviceState
*d
)
972 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
973 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
974 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
976 virtio_ccw_reset_virtio(dev
, vdev
);
977 css_reset_sch(ccw_dev
->sch
);
980 static void virtio_ccw_vmstate_change(DeviceState
*d
, bool running
)
982 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
985 virtio_ccw_start_ioeventfd(dev
);
987 virtio_ccw_stop_ioeventfd(dev
);
991 static bool virtio_ccw_query_guest_notifiers(DeviceState
*d
)
993 CcwDevice
*dev
= CCW_DEVICE(d
);
995 return !!(dev
->sch
->curr_status
.pmcw
.flags
& PMCW_FLAGS_MASK_ENA
);
998 static int virtio_ccw_get_mappings(VirtioCcwDevice
*dev
)
1001 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
1003 if (!ccw_dev
->sch
->thinint_active
) {
1007 r
= map_indicator(&dev
->routes
.adapter
, dev
->summary_indicator
);
1011 r
= map_indicator(&dev
->routes
.adapter
, dev
->indicators
);
1015 dev
->routes
.adapter
.summary_addr
= dev
->summary_indicator
->map
;
1016 dev
->routes
.adapter
.ind_addr
= dev
->indicators
->map
;
1021 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice
*dev
, int nvqs
)
1024 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1026 S390FLICState
*fs
= s390_get_flic();
1027 S390FLICStateClass
*fsc
= S390_FLIC_COMMON_GET_CLASS(fs
);
1029 ret
= virtio_ccw_get_mappings(dev
);
1033 for (i
= 0; i
< nvqs
; i
++) {
1034 if (!virtio_queue_get_num(vdev
, i
)) {
1038 dev
->routes
.num_routes
= i
;
1039 return fsc
->add_adapter_routes(fs
, &dev
->routes
);
1042 static void virtio_ccw_release_irqroutes(VirtioCcwDevice
*dev
, int nvqs
)
1044 S390FLICState
*fs
= s390_get_flic();
1045 S390FLICStateClass
*fsc
= S390_FLIC_COMMON_GET_CLASS(fs
);
1047 fsc
->release_adapter_routes(fs
, &dev
->routes
);
1050 static int virtio_ccw_add_irqfd(VirtioCcwDevice
*dev
, int n
)
1052 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1053 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1054 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1056 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state
, notifier
, NULL
,
1057 dev
->routes
.gsi
[n
]);
1060 static void virtio_ccw_remove_irqfd(VirtioCcwDevice
*dev
, int n
)
1062 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1063 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1064 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1067 ret
= kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state
, notifier
,
1068 dev
->routes
.gsi
[n
]);
1072 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice
*dev
, int n
,
1073 bool assign
, bool with_irqfd
)
1075 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1076 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1077 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1078 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
1081 int r
= event_notifier_init(notifier
, 0);
1086 virtio_queue_set_guest_notifier_fd_handler(vq
, true, with_irqfd
);
1088 r
= virtio_ccw_add_irqfd(dev
, n
);
1090 virtio_queue_set_guest_notifier_fd_handler(vq
, false,
1096 * We do not support individual masking for channel devices, so we
1097 * need to manually trigger any guest masking callbacks here.
1099 if (k
->guest_notifier_mask
) {
1100 k
->guest_notifier_mask(vdev
, n
, false);
1102 /* get lost events and re-inject */
1103 if (k
->guest_notifier_pending
&&
1104 k
->guest_notifier_pending(vdev
, n
)) {
1105 event_notifier_set(notifier
);
1108 if (k
->guest_notifier_mask
) {
1109 k
->guest_notifier_mask(vdev
, n
, true);
1112 virtio_ccw_remove_irqfd(dev
, n
);
1114 virtio_queue_set_guest_notifier_fd_handler(vq
, false, with_irqfd
);
1115 event_notifier_cleanup(notifier
);
1120 static int virtio_ccw_set_guest_notifiers(DeviceState
*d
, int nvqs
,
1123 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1124 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1125 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1126 bool with_irqfd
= ccw_dev
->sch
->thinint_active
&& kvm_irqfds_enabled();
1129 if (with_irqfd
&& assigned
) {
1130 /* irq routes need to be set up before assigning irqfds */
1131 r
= virtio_ccw_setup_irqroutes(dev
, nvqs
);
1133 goto irqroute_error
;
1136 for (n
= 0; n
< nvqs
; n
++) {
1137 if (!virtio_queue_get_num(vdev
, n
)) {
1140 r
= virtio_ccw_set_guest_notifier(dev
, n
, assigned
, with_irqfd
);
1145 if (with_irqfd
&& !assigned
) {
1146 /* release irq routes after irqfds have been released */
1147 virtio_ccw_release_irqroutes(dev
, nvqs
);
1153 virtio_ccw_set_guest_notifier(dev
, n
, !assigned
, false);
1156 if (with_irqfd
&& assigned
) {
1157 virtio_ccw_release_irqroutes(dev
, nvqs
);
1162 static void virtio_ccw_save_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
1164 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1165 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1167 qemu_put_be16(f
, virtio_queue_vector(vdev
, n
));
1170 static int virtio_ccw_load_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
1172 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1173 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1176 qemu_get_be16s(f
, &vector
);
1177 virtio_queue_set_vector(vdev
, n
, vector
);
1182 static void virtio_ccw_save_config(DeviceState
*d
, QEMUFile
*f
)
1184 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1185 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1186 SubchDev
*s
= ccw_dev
->sch
;
1187 VirtIODevice
*vdev
= virtio_ccw_get_vdev(s
);
1189 subch_device_save(s
, f
);
1190 if (dev
->indicators
!= NULL
) {
1191 qemu_put_be32(f
, dev
->indicators
->len
);
1192 qemu_put_be64(f
, dev
->indicators
->addr
);
1194 qemu_put_be32(f
, 0);
1195 qemu_put_be64(f
, 0UL);
1197 if (dev
->indicators2
!= NULL
) {
1198 qemu_put_be32(f
, dev
->indicators2
->len
);
1199 qemu_put_be64(f
, dev
->indicators2
->addr
);
1201 qemu_put_be32(f
, 0);
1202 qemu_put_be64(f
, 0UL);
1204 if (dev
->summary_indicator
!= NULL
) {
1205 qemu_put_be32(f
, dev
->summary_indicator
->len
);
1206 qemu_put_be64(f
, dev
->summary_indicator
->addr
);
1208 qemu_put_be32(f
, 0);
1209 qemu_put_be64(f
, 0UL);
1211 qemu_put_be16(f
, vdev
->config_vector
);
1212 qemu_put_be64(f
, dev
->routes
.adapter
.ind_offset
);
1213 qemu_put_byte(f
, dev
->thinint_isc
);
1214 qemu_put_be32(f
, dev
->revision
);
1217 static int virtio_ccw_load_config(DeviceState
*d
, QEMUFile
*f
)
1219 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1220 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1221 SubchDev
*s
= ccw_dev
->sch
;
1222 VirtIODevice
*vdev
= virtio_ccw_get_vdev(s
);
1225 s
->driver_data
= dev
;
1226 subch_device_load(s
, f
);
1227 len
= qemu_get_be32(f
);
1229 dev
->indicators
= get_indicator(qemu_get_be64(f
), len
);
1232 dev
->indicators
= NULL
;
1234 len
= qemu_get_be32(f
);
1236 dev
->indicators2
= get_indicator(qemu_get_be64(f
), len
);
1239 dev
->indicators2
= NULL
;
1241 len
= qemu_get_be32(f
);
1243 dev
->summary_indicator
= get_indicator(qemu_get_be64(f
), len
);
1246 dev
->summary_indicator
= NULL
;
1248 qemu_get_be16s(f
, &vdev
->config_vector
);
1249 dev
->routes
.adapter
.ind_offset
= qemu_get_be64(f
);
1250 dev
->thinint_isc
= qemu_get_byte(f
);
1251 dev
->revision
= qemu_get_be32(f
);
1252 if (s
->thinint_active
) {
1253 return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO
,
1254 dev
->thinint_isc
, true, false,
1255 &dev
->routes
.adapter
.adapter_id
);
1261 static void virtio_ccw_pre_plugged(DeviceState
*d
, Error
**errp
)
1263 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1264 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1266 if (dev
->max_rev
>= 1) {
1267 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_VERSION_1
);
1271 /* This is called by virtio-bus just after the device is plugged. */
1272 static void virtio_ccw_device_plugged(DeviceState
*d
, Error
**errp
)
1274 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1275 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1276 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1277 SubchDev
*sch
= ccw_dev
->sch
;
1278 int n
= virtio_get_num_queues(vdev
);
1280 if (!virtio_has_feature(vdev
->host_features
, VIRTIO_F_VERSION_1
)) {
1284 if (virtio_get_num_queues(vdev
) > VIRTIO_CCW_QUEUE_MAX
) {
1285 error_setg(errp
, "The number of virtqueues %d "
1286 "exceeds ccw limit %d", n
,
1287 VIRTIO_CCW_QUEUE_MAX
);
1291 sch
->id
.cu_model
= virtio_bus_get_vdev_id(&dev
->bus
);
1294 css_generate_sch_crws(sch
->cssid
, sch
->ssid
, sch
->schid
,
1298 static void virtio_ccw_device_unplugged(DeviceState
*d
)
1300 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1302 virtio_ccw_stop_ioeventfd(dev
);
1304 /**************** Virtio-ccw Bus Device Descriptions *******************/
1306 static Property virtio_ccw_net_properties
[] = {
1307 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1308 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1309 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1310 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1311 VIRTIO_CCW_MAX_REV
),
1312 DEFINE_PROP_END_OF_LIST(),
1315 static void virtio_ccw_net_class_init(ObjectClass
*klass
, void *data
)
1317 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1318 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1320 k
->realize
= virtio_ccw_net_realize
;
1321 k
->exit
= virtio_ccw_exit
;
1322 dc
->reset
= virtio_ccw_reset
;
1323 dc
->props
= virtio_ccw_net_properties
;
1324 set_bit(DEVICE_CATEGORY_NETWORK
, dc
->categories
);
1327 static const TypeInfo virtio_ccw_net
= {
1328 .name
= TYPE_VIRTIO_NET_CCW
,
1329 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1330 .instance_size
= sizeof(VirtIONetCcw
),
1331 .instance_init
= virtio_ccw_net_instance_init
,
1332 .class_init
= virtio_ccw_net_class_init
,
1335 static Property virtio_ccw_blk_properties
[] = {
1336 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1337 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1338 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1339 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1340 VIRTIO_CCW_MAX_REV
),
1341 DEFINE_PROP_END_OF_LIST(),
1344 static void virtio_ccw_blk_class_init(ObjectClass
*klass
, void *data
)
1346 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1347 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1349 k
->realize
= virtio_ccw_blk_realize
;
1350 k
->exit
= virtio_ccw_exit
;
1351 dc
->reset
= virtio_ccw_reset
;
1352 dc
->props
= virtio_ccw_blk_properties
;
1353 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1356 static const TypeInfo virtio_ccw_blk
= {
1357 .name
= TYPE_VIRTIO_BLK_CCW
,
1358 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1359 .instance_size
= sizeof(VirtIOBlkCcw
),
1360 .instance_init
= virtio_ccw_blk_instance_init
,
1361 .class_init
= virtio_ccw_blk_class_init
,
1364 static Property virtio_ccw_serial_properties
[] = {
1365 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1366 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1367 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1368 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1369 VIRTIO_CCW_MAX_REV
),
1370 DEFINE_PROP_END_OF_LIST(),
1373 static void virtio_ccw_serial_class_init(ObjectClass
*klass
, void *data
)
1375 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1376 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1378 k
->realize
= virtio_ccw_serial_realize
;
1379 k
->exit
= virtio_ccw_exit
;
1380 dc
->reset
= virtio_ccw_reset
;
1381 dc
->props
= virtio_ccw_serial_properties
;
1382 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
1385 static const TypeInfo virtio_ccw_serial
= {
1386 .name
= TYPE_VIRTIO_SERIAL_CCW
,
1387 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1388 .instance_size
= sizeof(VirtioSerialCcw
),
1389 .instance_init
= virtio_ccw_serial_instance_init
,
1390 .class_init
= virtio_ccw_serial_class_init
,
1393 static Property virtio_ccw_balloon_properties
[] = {
1394 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1395 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1396 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1397 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1398 VIRTIO_CCW_MAX_REV
),
1399 DEFINE_PROP_END_OF_LIST(),
1402 static void virtio_ccw_balloon_class_init(ObjectClass
*klass
, void *data
)
1404 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1405 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1407 k
->realize
= virtio_ccw_balloon_realize
;
1408 k
->exit
= virtio_ccw_exit
;
1409 dc
->reset
= virtio_ccw_reset
;
1410 dc
->props
= virtio_ccw_balloon_properties
;
1411 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
1414 static const TypeInfo virtio_ccw_balloon
= {
1415 .name
= TYPE_VIRTIO_BALLOON_CCW
,
1416 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1417 .instance_size
= sizeof(VirtIOBalloonCcw
),
1418 .instance_init
= virtio_ccw_balloon_instance_init
,
1419 .class_init
= virtio_ccw_balloon_class_init
,
1422 static Property virtio_ccw_scsi_properties
[] = {
1423 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1424 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1425 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1426 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1427 VIRTIO_CCW_MAX_REV
),
1428 DEFINE_PROP_END_OF_LIST(),
1431 static void virtio_ccw_scsi_class_init(ObjectClass
*klass
, void *data
)
1433 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1434 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1436 k
->realize
= virtio_ccw_scsi_realize
;
1437 k
->exit
= virtio_ccw_exit
;
1438 dc
->reset
= virtio_ccw_reset
;
1439 dc
->props
= virtio_ccw_scsi_properties
;
1440 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1443 static const TypeInfo virtio_ccw_scsi
= {
1444 .name
= TYPE_VIRTIO_SCSI_CCW
,
1445 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1446 .instance_size
= sizeof(VirtIOSCSICcw
),
1447 .instance_init
= virtio_ccw_scsi_instance_init
,
1448 .class_init
= virtio_ccw_scsi_class_init
,
1451 #ifdef CONFIG_VHOST_SCSI
1452 static Property vhost_ccw_scsi_properties
[] = {
1453 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1454 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1455 VIRTIO_CCW_MAX_REV
),
1456 DEFINE_PROP_END_OF_LIST(),
1459 static void vhost_ccw_scsi_class_init(ObjectClass
*klass
, void *data
)
1461 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1462 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1464 k
->realize
= vhost_ccw_scsi_realize
;
1465 k
->exit
= virtio_ccw_exit
;
1466 dc
->reset
= virtio_ccw_reset
;
1467 dc
->props
= vhost_ccw_scsi_properties
;
1468 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1471 static const TypeInfo vhost_ccw_scsi
= {
1472 .name
= TYPE_VHOST_SCSI_CCW
,
1473 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1474 .instance_size
= sizeof(VHostSCSICcw
),
1475 .instance_init
= vhost_ccw_scsi_instance_init
,
1476 .class_init
= vhost_ccw_scsi_class_init
,
1480 static void virtio_ccw_rng_instance_init(Object
*obj
)
1482 VirtIORNGCcw
*dev
= VIRTIO_RNG_CCW(obj
);
1484 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1486 object_property_add_alias(obj
, "rng", OBJECT(&dev
->vdev
),
1487 "rng", &error_abort
);
1490 static Property virtio_ccw_rng_properties
[] = {
1491 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1492 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1493 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1494 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1495 VIRTIO_CCW_MAX_REV
),
1496 DEFINE_PROP_END_OF_LIST(),
1499 static void virtio_ccw_rng_class_init(ObjectClass
*klass
, void *data
)
1501 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1502 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1504 k
->realize
= virtio_ccw_rng_realize
;
1505 k
->exit
= virtio_ccw_exit
;
1506 dc
->reset
= virtio_ccw_reset
;
1507 dc
->props
= virtio_ccw_rng_properties
;
1508 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
1511 static const TypeInfo virtio_ccw_rng
= {
1512 .name
= TYPE_VIRTIO_RNG_CCW
,
1513 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1514 .instance_size
= sizeof(VirtIORNGCcw
),
1515 .instance_init
= virtio_ccw_rng_instance_init
,
1516 .class_init
= virtio_ccw_rng_class_init
,
1519 static void virtio_ccw_busdev_realize(DeviceState
*dev
, Error
**errp
)
1521 VirtioCcwDevice
*_dev
= (VirtioCcwDevice
*)dev
;
1523 virtio_ccw_bus_new(&_dev
->bus
, sizeof(_dev
->bus
), _dev
);
1524 virtio_ccw_device_realize(_dev
, errp
);
1527 static int virtio_ccw_busdev_exit(DeviceState
*dev
)
1529 VirtioCcwDevice
*_dev
= (VirtioCcwDevice
*)dev
;
1530 VirtIOCCWDeviceClass
*_info
= VIRTIO_CCW_DEVICE_GET_CLASS(dev
);
1532 return _info
->exit(_dev
);
1535 static void virtio_ccw_busdev_unplug(HotplugHandler
*hotplug_dev
,
1536 DeviceState
*dev
, Error
**errp
)
1538 VirtioCcwDevice
*_dev
= to_virtio_ccw_dev_fast(dev
);
1540 virtio_ccw_stop_ioeventfd(_dev
);
1543 static void virtio_ccw_device_class_init(ObjectClass
*klass
, void *data
)
1545 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1546 CCWDeviceClass
*k
= CCW_DEVICE_CLASS(dc
);
1548 k
->unplug
= virtio_ccw_busdev_unplug
;
1549 dc
->realize
= virtio_ccw_busdev_realize
;
1550 dc
->exit
= virtio_ccw_busdev_exit
;
1551 dc
->bus_type
= TYPE_VIRTUAL_CSS_BUS
;
1554 static const TypeInfo virtio_ccw_device_info
= {
1555 .name
= TYPE_VIRTIO_CCW_DEVICE
,
1556 .parent
= TYPE_CCW_DEVICE
,
1557 .instance_size
= sizeof(VirtioCcwDevice
),
1558 .class_init
= virtio_ccw_device_class_init
,
1559 .class_size
= sizeof(VirtIOCCWDeviceClass
),
1563 /* virtio-ccw-bus */
1565 static void virtio_ccw_bus_new(VirtioBusState
*bus
, size_t bus_size
,
1566 VirtioCcwDevice
*dev
)
1568 DeviceState
*qdev
= DEVICE(dev
);
1569 char virtio_bus_name
[] = "virtio-bus";
1571 qbus_create_inplace(bus
, bus_size
, TYPE_VIRTIO_CCW_BUS
,
1572 qdev
, virtio_bus_name
);
1575 static void virtio_ccw_bus_class_init(ObjectClass
*klass
, void *data
)
1577 VirtioBusClass
*k
= VIRTIO_BUS_CLASS(klass
);
1578 BusClass
*bus_class
= BUS_CLASS(klass
);
1580 bus_class
->max_dev
= 1;
1581 k
->notify
= virtio_ccw_notify
;
1582 k
->vmstate_change
= virtio_ccw_vmstate_change
;
1583 k
->query_guest_notifiers
= virtio_ccw_query_guest_notifiers
;
1584 k
->set_guest_notifiers
= virtio_ccw_set_guest_notifiers
;
1585 k
->save_queue
= virtio_ccw_save_queue
;
1586 k
->load_queue
= virtio_ccw_load_queue
;
1587 k
->save_config
= virtio_ccw_save_config
;
1588 k
->load_config
= virtio_ccw_load_config
;
1589 k
->pre_plugged
= virtio_ccw_pre_plugged
;
1590 k
->device_plugged
= virtio_ccw_device_plugged
;
1591 k
->device_unplugged
= virtio_ccw_device_unplugged
;
1592 k
->ioeventfd_disabled
= virtio_ccw_ioeventfd_disabled
;
1593 k
->ioeventfd_assign
= virtio_ccw_ioeventfd_assign
;
1596 static const TypeInfo virtio_ccw_bus_info
= {
1597 .name
= TYPE_VIRTIO_CCW_BUS
,
1598 .parent
= TYPE_VIRTIO_BUS
,
1599 .instance_size
= sizeof(VirtioCcwBusState
),
1600 .class_init
= virtio_ccw_bus_class_init
,
1603 #ifdef CONFIG_VIRTFS
1604 static Property virtio_ccw_9p_properties
[] = {
1605 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1606 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1607 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1608 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1609 VIRTIO_CCW_MAX_REV
),
1610 DEFINE_PROP_END_OF_LIST(),
1613 static void virtio_ccw_9p_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
1615 V9fsCCWState
*dev
= VIRTIO_9P_CCW(ccw_dev
);
1616 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1618 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
1619 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1622 static void virtio_ccw_9p_class_init(ObjectClass
*klass
, void *data
)
1624 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1625 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1627 k
->exit
= virtio_ccw_exit
;
1628 k
->realize
= virtio_ccw_9p_realize
;
1629 dc
->reset
= virtio_ccw_reset
;
1630 dc
->props
= virtio_ccw_9p_properties
;
1631 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1634 static void virtio_ccw_9p_instance_init(Object
*obj
)
1636 V9fsCCWState
*dev
= VIRTIO_9P_CCW(obj
);
1638 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1642 static const TypeInfo virtio_ccw_9p_info
= {
1643 .name
= TYPE_VIRTIO_9P_CCW
,
1644 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1645 .instance_size
= sizeof(V9fsCCWState
),
1646 .instance_init
= virtio_ccw_9p_instance_init
,
1647 .class_init
= virtio_ccw_9p_class_init
,
1651 #ifdef CONFIG_VHOST_VSOCK
1653 static Property vhost_vsock_ccw_properties
[] = {
1654 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1655 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1656 VIRTIO_CCW_MAX_REV
),
1657 DEFINE_PROP_END_OF_LIST(),
1660 static void vhost_vsock_ccw_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
1662 VHostVSockCCWState
*dev
= VHOST_VSOCK_CCW(ccw_dev
);
1663 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1666 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
1667 object_property_set_bool(OBJECT(vdev
), true, "realized", &err
);
1669 error_propagate(errp
, err
);
1673 static void vhost_vsock_ccw_class_init(ObjectClass
*klass
, void *data
)
1675 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1676 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1678 k
->realize
= vhost_vsock_ccw_realize
;
1679 k
->exit
= virtio_ccw_exit
;
1680 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
1681 dc
->props
= vhost_vsock_ccw_properties
;
1682 dc
->reset
= virtio_ccw_reset
;
1685 static void vhost_vsock_ccw_instance_init(Object
*obj
)
1687 VHostVSockCCWState
*dev
= VHOST_VSOCK_CCW(obj
);
1689 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1693 static const TypeInfo vhost_vsock_ccw_info
= {
1694 .name
= TYPE_VHOST_VSOCK_CCW
,
1695 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1696 .instance_size
= sizeof(VHostVSockCCWState
),
1697 .instance_init
= vhost_vsock_ccw_instance_init
,
1698 .class_init
= vhost_vsock_ccw_class_init
,
1702 static void virtio_ccw_register(void)
1704 type_register_static(&virtio_ccw_bus_info
);
1705 type_register_static(&virtio_ccw_device_info
);
1706 type_register_static(&virtio_ccw_serial
);
1707 type_register_static(&virtio_ccw_blk
);
1708 type_register_static(&virtio_ccw_net
);
1709 type_register_static(&virtio_ccw_balloon
);
1710 type_register_static(&virtio_ccw_scsi
);
1711 #ifdef CONFIG_VHOST_SCSI
1712 type_register_static(&vhost_ccw_scsi
);
1714 type_register_static(&virtio_ccw_rng
);
1715 #ifdef CONFIG_VIRTFS
1716 type_register_static(&virtio_ccw_9p_info
);
1718 #ifdef CONFIG_VHOST_VSOCK
1719 type_register_static(&vhost_vsock_ccw_info
);
1723 type_init(virtio_ccw_register
)