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_started(DeviceState
*d
)
64 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
66 return dev
->ioeventfd_started
;
69 static void virtio_ccw_ioeventfd_set_started(DeviceState
*d
, bool started
,
72 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
74 dev
->ioeventfd_started
= started
;
76 /* Disable ioeventfd for this device. */
77 dev
->flags
&= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD
;
81 static bool virtio_ccw_ioeventfd_disabled(DeviceState
*d
)
83 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
85 return dev
->ioeventfd_disabled
||
86 !(dev
->flags
& VIRTIO_CCW_FLAG_USE_IOEVENTFD
);
89 static void virtio_ccw_ioeventfd_set_disabled(DeviceState
*d
, bool disabled
)
91 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
93 dev
->ioeventfd_disabled
= disabled
;
96 static int virtio_ccw_ioeventfd_assign(DeviceState
*d
, EventNotifier
*notifier
,
99 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
100 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
101 SubchDev
*sch
= ccw_dev
->sch
;
102 uint32_t sch_id
= (css_build_subchannel_id(sch
) << 16) | sch
->schid
;
104 return s390_assign_subch_ioeventfd(notifier
, sch_id
, n
, assign
);
107 /* Communication blocks used by several channel commands. */
108 typedef struct VqInfoBlockLegacy
{
113 } QEMU_PACKED VqInfoBlockLegacy
;
115 typedef struct VqInfoBlock
{
122 } QEMU_PACKED VqInfoBlock
;
124 typedef struct VqConfigBlock
{
127 } QEMU_PACKED VqConfigBlock
;
129 typedef struct VirtioFeatDesc
{
132 } QEMU_PACKED VirtioFeatDesc
;
134 typedef struct VirtioThinintInfo
{
135 hwaddr summary_indicator
;
136 hwaddr device_indicator
;
139 } QEMU_PACKED VirtioThinintInfo
;
141 typedef struct VirtioRevInfo
{
145 } QEMU_PACKED VirtioRevInfo
;
147 /* Specify where the virtqueues for the subchannel are in guest memory. */
148 static int virtio_ccw_set_vqs(SubchDev
*sch
, VqInfoBlock
*info
,
149 VqInfoBlockLegacy
*linfo
)
151 VirtIODevice
*vdev
= virtio_ccw_get_vdev(sch
);
152 uint16_t index
= info
? info
->index
: linfo
->index
;
153 uint16_t num
= info
? info
->num
: linfo
->num
;
154 uint64_t desc
= info
? info
->desc
: linfo
->queue
;
156 if (index
>= VIRTIO_CCW_QUEUE_MAX
) {
160 /* Current code in virtio.c relies on 4K alignment. */
161 if (linfo
&& desc
&& (linfo
->align
!= 4096)) {
170 virtio_queue_set_rings(vdev
, index
, desc
, info
->avail
, info
->used
);
172 virtio_queue_set_addr(vdev
, index
, desc
);
175 virtio_queue_set_vector(vdev
, index
, VIRTIO_NO_VECTOR
);
178 /* virtio-1 allows changing the ring size. */
179 if (virtio_queue_get_num(vdev
, index
) < num
) {
180 /* Fail if we exceed the maximum number. */
183 virtio_queue_set_num(vdev
, index
, num
);
184 } else if (virtio_queue_get_num(vdev
, index
) > num
) {
185 /* Fail if we don't have a big enough queue. */
188 /* We ignore possible increased num for legacy for compatibility. */
189 virtio_queue_set_vector(vdev
, index
, index
);
191 /* tell notify handler in case of config change */
192 vdev
->config_vector
= VIRTIO_CCW_QUEUE_MAX
;
196 static void virtio_ccw_reset_virtio(VirtioCcwDevice
*dev
, VirtIODevice
*vdev
)
198 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
200 virtio_ccw_stop_ioeventfd(dev
);
202 if (dev
->indicators
) {
203 release_indicator(&dev
->routes
.adapter
, dev
->indicators
);
204 dev
->indicators
= NULL
;
206 if (dev
->indicators2
) {
207 release_indicator(&dev
->routes
.adapter
, dev
->indicators2
);
208 dev
->indicators2
= NULL
;
210 if (dev
->summary_indicator
) {
211 release_indicator(&dev
->routes
.adapter
, dev
->summary_indicator
);
212 dev
->summary_indicator
= NULL
;
214 ccw_dev
->sch
->thinint_active
= false;
217 static int virtio_ccw_handle_set_vq(SubchDev
*sch
, CCW1 ccw
, bool check_len
,
222 VqInfoBlockLegacy linfo
;
223 size_t info_len
= is_legacy
? sizeof(linfo
) : sizeof(info
);
226 if (ccw
.count
!= info_len
) {
229 } else if (ccw
.count
< info_len
) {
230 /* Can't execute command. */
237 linfo
.queue
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
238 MEMTXATTRS_UNSPECIFIED
, NULL
);
239 linfo
.align
= address_space_ldl_be(&address_space_memory
,
240 ccw
.cda
+ sizeof(linfo
.queue
),
241 MEMTXATTRS_UNSPECIFIED
,
243 linfo
.index
= address_space_lduw_be(&address_space_memory
,
244 ccw
.cda
+ sizeof(linfo
.queue
)
245 + sizeof(linfo
.align
),
246 MEMTXATTRS_UNSPECIFIED
,
248 linfo
.num
= address_space_lduw_be(&address_space_memory
,
249 ccw
.cda
+ sizeof(linfo
.queue
)
250 + sizeof(linfo
.align
)
251 + sizeof(linfo
.index
),
252 MEMTXATTRS_UNSPECIFIED
,
254 ret
= virtio_ccw_set_vqs(sch
, NULL
, &linfo
);
256 info
.desc
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
257 MEMTXATTRS_UNSPECIFIED
, NULL
);
258 info
.index
= address_space_lduw_be(&address_space_memory
,
259 ccw
.cda
+ sizeof(info
.desc
)
261 MEMTXATTRS_UNSPECIFIED
, NULL
);
262 info
.num
= address_space_lduw_be(&address_space_memory
,
263 ccw
.cda
+ sizeof(info
.desc
)
265 + sizeof(info
.index
),
266 MEMTXATTRS_UNSPECIFIED
, NULL
);
267 info
.avail
= address_space_ldq_be(&address_space_memory
,
268 ccw
.cda
+ sizeof(info
.desc
)
272 MEMTXATTRS_UNSPECIFIED
, NULL
);
273 info
.used
= address_space_ldq_be(&address_space_memory
,
274 ccw
.cda
+ sizeof(info
.desc
)
278 + sizeof(info
.avail
),
279 MEMTXATTRS_UNSPECIFIED
, NULL
);
280 ret
= virtio_ccw_set_vqs(sch
, &info
, NULL
);
282 sch
->curr_status
.scsw
.count
= 0;
286 static int virtio_ccw_cb(SubchDev
*sch
, CCW1 ccw
)
289 VirtioRevInfo revinfo
;
291 VirtioFeatDesc features
;
294 VqConfigBlock vq_config
;
295 VirtioCcwDevice
*dev
= sch
->driver_data
;
296 VirtIODevice
*vdev
= virtio_ccw_get_vdev(sch
);
300 VirtioThinintInfo
*thinint
;
306 trace_virtio_ccw_interpret_ccw(sch
->cssid
, sch
->ssid
, sch
->schid
,
308 check_len
= !((ccw
.flags
& CCW_FLAG_SLI
) && !(ccw
.flags
& CCW_FLAG_DC
));
310 /* Look at the command. */
311 switch (ccw
.cmd_code
) {
313 ret
= virtio_ccw_handle_set_vq(sch
, ccw
, check_len
, dev
->revision
< 1);
315 case CCW_CMD_VDEV_RESET
:
316 virtio_ccw_reset_virtio(dev
, vdev
);
319 case CCW_CMD_READ_FEAT
:
321 if (ccw
.count
!= sizeof(features
)) {
325 } else if (ccw
.count
< sizeof(features
)) {
326 /* Can't execute command. */
333 features
.index
= address_space_ldub(&address_space_memory
,
335 + sizeof(features
.features
),
336 MEMTXATTRS_UNSPECIFIED
,
338 if (features
.index
== 0) {
339 if (dev
->revision
>= 1) {
340 /* Don't offer legacy features for modern devices. */
341 features
.features
= (uint32_t)
342 (vdev
->host_features
& ~VIRTIO_LEGACY_FEATURES
);
344 features
.features
= (uint32_t)vdev
->host_features
;
346 } else if ((features
.index
== 1) && (dev
->revision
>= 1)) {
348 * Only offer feature bits beyond 31 if the guest has
349 * negotiated at least revision 1.
351 features
.features
= (uint32_t)(vdev
->host_features
>> 32);
353 /* Return zeroes if the guest supports more feature bits. */
354 features
.features
= 0;
356 address_space_stl_le(&address_space_memory
, ccw
.cda
,
357 features
.features
, MEMTXATTRS_UNSPECIFIED
,
359 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(features
);
363 case CCW_CMD_WRITE_FEAT
:
365 if (ccw
.count
!= sizeof(features
)) {
369 } else if (ccw
.count
< sizeof(features
)) {
370 /* Can't execute command. */
377 features
.index
= address_space_ldub(&address_space_memory
,
379 + sizeof(features
.features
),
380 MEMTXATTRS_UNSPECIFIED
,
382 features
.features
= address_space_ldl_le(&address_space_memory
,
384 MEMTXATTRS_UNSPECIFIED
,
386 if (features
.index
== 0) {
387 virtio_set_features(vdev
,
388 (vdev
->guest_features
& 0xffffffff00000000ULL
) |
390 } else if ((features
.index
== 1) && (dev
->revision
>= 1)) {
392 * If the guest did not negotiate at least revision 1,
393 * we did not offer it any feature bits beyond 31. Such a
394 * guest passing us any bit here is therefore buggy.
396 virtio_set_features(vdev
,
397 (vdev
->guest_features
& 0x00000000ffffffffULL
) |
398 ((uint64_t)features
.features
<< 32));
401 * If the guest supports more feature bits, assert that it
402 * passes us zeroes for those we don't support.
404 if (features
.features
) {
405 fprintf(stderr
, "Guest bug: features[%i]=%x (expected 0)\n",
406 features
.index
, features
.features
);
407 /* XXX: do a unit check here? */
410 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(features
);
414 case CCW_CMD_READ_CONF
:
416 if (ccw
.count
> vdev
->config_len
) {
421 len
= MIN(ccw
.count
, vdev
->config_len
);
425 virtio_bus_get_vdev_config(&dev
->bus
, vdev
->config
);
426 /* XXX config space endianness */
427 cpu_physical_memory_write(ccw
.cda
, vdev
->config
, len
);
428 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
432 case CCW_CMD_WRITE_CONF
:
434 if (ccw
.count
> vdev
->config_len
) {
439 len
= MIN(ccw
.count
, vdev
->config_len
);
444 config
= cpu_physical_memory_map(ccw
.cda
, &hw_len
, 0);
449 /* XXX config space endianness */
450 memcpy(vdev
->config
, config
, len
);
451 cpu_physical_memory_unmap(config
, hw_len
, 0, hw_len
);
452 virtio_bus_set_vdev_config(&dev
->bus
, vdev
->config
);
453 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
458 case CCW_CMD_WRITE_STATUS
:
460 if (ccw
.count
!= sizeof(status
)) {
464 } else if (ccw
.count
< sizeof(status
)) {
465 /* Can't execute command. */
472 status
= address_space_ldub(&address_space_memory
, ccw
.cda
,
473 MEMTXATTRS_UNSPECIFIED
, NULL
);
474 if (!(status
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
475 virtio_ccw_stop_ioeventfd(dev
);
477 if (virtio_set_status(vdev
, status
) == 0) {
478 if (vdev
->status
== 0) {
479 virtio_ccw_reset_virtio(dev
, vdev
);
481 if (status
& VIRTIO_CONFIG_S_DRIVER_OK
) {
482 virtio_ccw_start_ioeventfd(dev
);
484 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(status
);
487 /* Trigger a command reject. */
492 case CCW_CMD_SET_IND
:
494 if (ccw
.count
!= sizeof(indicators
)) {
498 } else if (ccw
.count
< sizeof(indicators
)) {
499 /* Can't execute command. */
503 if (sch
->thinint_active
) {
504 /* Trigger a command reject. */
511 indicators
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
512 MEMTXATTRS_UNSPECIFIED
, NULL
);
513 dev
->indicators
= get_indicator(indicators
, sizeof(uint64_t));
514 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(indicators
);
518 case CCW_CMD_SET_CONF_IND
:
520 if (ccw
.count
!= sizeof(indicators
)) {
524 } else if (ccw
.count
< sizeof(indicators
)) {
525 /* Can't execute command. */
532 indicators
= address_space_ldq_be(&address_space_memory
, ccw
.cda
,
533 MEMTXATTRS_UNSPECIFIED
, NULL
);
534 dev
->indicators2
= get_indicator(indicators
, sizeof(uint64_t));
535 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(indicators
);
539 case CCW_CMD_READ_VQ_CONF
:
541 if (ccw
.count
!= sizeof(vq_config
)) {
545 } else if (ccw
.count
< sizeof(vq_config
)) {
546 /* Can't execute command. */
553 vq_config
.index
= address_space_lduw_be(&address_space_memory
,
555 MEMTXATTRS_UNSPECIFIED
,
557 if (vq_config
.index
>= VIRTIO_CCW_QUEUE_MAX
) {
561 vq_config
.num_max
= virtio_queue_get_num(vdev
,
563 address_space_stw_be(&address_space_memory
,
564 ccw
.cda
+ sizeof(vq_config
.index
),
566 MEMTXATTRS_UNSPECIFIED
,
568 sch
->curr_status
.scsw
.count
= ccw
.count
- sizeof(vq_config
);
572 case CCW_CMD_SET_IND_ADAPTER
:
574 if (ccw
.count
!= sizeof(*thinint
)) {
578 } else if (ccw
.count
< sizeof(*thinint
)) {
579 /* Can't execute command. */
583 len
= sizeof(*thinint
);
587 } else if (dev
->indicators
&& !sch
->thinint_active
) {
588 /* Trigger a command reject. */
591 thinint
= cpu_physical_memory_map(ccw
.cda
, &hw_len
, 0);
595 uint64_t ind_bit
= ldq_be_p(&thinint
->ind_bit
);
598 dev
->summary_indicator
=
599 get_indicator(ldq_be_p(&thinint
->summary_indicator
),
602 get_indicator(ldq_be_p(&thinint
->device_indicator
),
604 dev
->thinint_isc
= thinint
->isc
;
605 dev
->routes
.adapter
.ind_offset
= ind_bit
;
606 dev
->routes
.adapter
.summary_offset
= 7;
607 cpu_physical_memory_unmap(thinint
, hw_len
, 0, hw_len
);
608 ret
= css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO
,
609 dev
->thinint_isc
, true, false,
610 &dev
->routes
.adapter
.adapter_id
);
612 sch
->thinint_active
= ((dev
->indicators
!= NULL
) &&
613 (dev
->summary_indicator
!= NULL
));
614 sch
->curr_status
.scsw
.count
= ccw
.count
- len
;
619 case CCW_CMD_SET_VIRTIO_REV
:
620 len
= sizeof(revinfo
);
621 if (ccw
.count
< len
) {
630 address_space_lduw_be(&address_space_memory
, ccw
.cda
,
631 MEMTXATTRS_UNSPECIFIED
, NULL
);
633 address_space_lduw_be(&address_space_memory
,
634 ccw
.cda
+ sizeof(revinfo
.revision
),
635 MEMTXATTRS_UNSPECIFIED
, NULL
);
636 if (ccw
.count
< len
+ revinfo
.length
||
637 (check_len
&& ccw
.count
> len
+ revinfo
.length
)) {
642 * Once we start to support revisions with additional data, we'll
643 * need to fetch it here. Nothing to do for now, though.
645 if (dev
->revision
>= 0 ||
646 revinfo
.revision
> virtio_ccw_rev_max(dev
)) {
651 dev
->revision
= revinfo
.revision
;
660 static void virtio_sch_disable_cb(SubchDev
*sch
)
662 VirtioCcwDevice
*dev
= sch
->driver_data
;
667 static void virtio_ccw_device_realize(VirtioCcwDevice
*dev
, Error
**errp
)
669 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_GET_CLASS(dev
);
670 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
671 SubchDev
*sch
= css_create_virtual_sch(ccw_dev
->bus_id
, errp
);
678 sch
->driver_data
= dev
;
679 sch
->ccw_cb
= virtio_ccw_cb
;
680 sch
->disable_cb
= virtio_sch_disable_cb
;
681 sch
->id
.reserved
= 0xff;
682 sch
->id
.cu_type
= VIRTIO_CCW_CU_TYPE
;
684 dev
->indicators
= NULL
;
686 css_sch_build_virtual_schib(sch
, 0, VIRTIO_CCW_CHPID_TYPE
);
688 trace_virtio_ccw_new_device(
689 sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
,
690 ccw_dev
->bus_id
.valid
? "user-configured" : "auto-configured");
693 k
->realize(dev
, &err
);
696 error_propagate(errp
, err
);
697 css_subch_assign(sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
, NULL
);
703 static int virtio_ccw_exit(VirtioCcwDevice
*dev
)
705 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
706 SubchDev
*sch
= ccw_dev
->sch
;
709 css_subch_assign(sch
->cssid
, sch
->ssid
, sch
->schid
, sch
->devno
, NULL
);
712 if (dev
->indicators
) {
713 release_indicator(&dev
->routes
.adapter
, dev
->indicators
);
714 dev
->indicators
= NULL
;
719 static void virtio_ccw_net_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
721 DeviceState
*qdev
= DEVICE(ccw_dev
);
722 VirtIONetCcw
*dev
= VIRTIO_NET_CCW(ccw_dev
);
723 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
725 virtio_net_set_netclient_name(&dev
->vdev
, qdev
->id
,
726 object_get_typename(OBJECT(qdev
)));
727 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
728 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
731 static void virtio_ccw_net_instance_init(Object
*obj
)
733 VirtIONetCcw
*dev
= VIRTIO_NET_CCW(obj
);
735 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
737 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
738 "bootindex", &error_abort
);
741 static void virtio_ccw_blk_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
743 VirtIOBlkCcw
*dev
= VIRTIO_BLK_CCW(ccw_dev
);
744 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
746 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
747 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
750 static void virtio_ccw_blk_instance_init(Object
*obj
)
752 VirtIOBlkCcw
*dev
= VIRTIO_BLK_CCW(obj
);
754 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
756 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
),"iothread",
758 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
759 "bootindex", &error_abort
);
762 static void virtio_ccw_serial_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
764 VirtioSerialCcw
*dev
= VIRTIO_SERIAL_CCW(ccw_dev
);
765 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
766 DeviceState
*proxy
= DEVICE(ccw_dev
);
770 * For command line compatibility, this sets the virtio-serial-device bus
774 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
775 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
779 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
780 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
784 static void virtio_ccw_serial_instance_init(Object
*obj
)
786 VirtioSerialCcw
*dev
= VIRTIO_SERIAL_CCW(obj
);
788 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
792 static void virtio_ccw_balloon_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
794 VirtIOBalloonCcw
*dev
= VIRTIO_BALLOON_CCW(ccw_dev
);
795 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
797 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
798 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
801 static void virtio_ccw_balloon_instance_init(Object
*obj
)
803 VirtIOBalloonCcw
*dev
= VIRTIO_BALLOON_CCW(obj
);
805 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
806 TYPE_VIRTIO_BALLOON
);
807 object_property_add_alias(obj
, "guest-stats", OBJECT(&dev
->vdev
),
808 "guest-stats", &error_abort
);
809 object_property_add_alias(obj
, "guest-stats-polling-interval",
811 "guest-stats-polling-interval", &error_abort
);
814 static void virtio_ccw_scsi_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
816 VirtIOSCSICcw
*dev
= VIRTIO_SCSI_CCW(ccw_dev
);
817 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
818 DeviceState
*qdev
= DEVICE(ccw_dev
);
822 * For command line compatibility, this sets the virtio-scsi-device bus
826 bus_name
= g_strdup_printf("%s.0", qdev
->id
);
827 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
831 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
832 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
835 static void virtio_ccw_scsi_instance_init(Object
*obj
)
837 VirtIOSCSICcw
*dev
= VIRTIO_SCSI_CCW(obj
);
839 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
841 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
), "iothread",
845 #ifdef CONFIG_VHOST_SCSI
846 static void vhost_ccw_scsi_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
848 VHostSCSICcw
*dev
= VHOST_SCSI_CCW(ccw_dev
);
849 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
851 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
852 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
855 static void vhost_ccw_scsi_instance_init(Object
*obj
)
857 VHostSCSICcw
*dev
= VHOST_SCSI_CCW(obj
);
859 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
864 static void virtio_ccw_rng_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
866 VirtIORNGCcw
*dev
= VIRTIO_RNG_CCW(ccw_dev
);
867 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
870 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
871 object_property_set_bool(OBJECT(vdev
), true, "realized", &err
);
873 error_propagate(errp
, err
);
877 object_property_set_link(OBJECT(dev
),
878 OBJECT(dev
->vdev
.conf
.rng
), "rng",
882 /* DeviceState to VirtioCcwDevice. Note: used on datapath,
883 * be careful and test performance if you change this.
885 static inline VirtioCcwDevice
*to_virtio_ccw_dev_fast(DeviceState
*d
)
887 CcwDevice
*ccw_dev
= to_ccw_dev_fast(d
);
889 return container_of(ccw_dev
, VirtioCcwDevice
, parent_obj
);
892 static uint8_t virtio_set_ind_atomic(SubchDev
*sch
, uint64_t ind_loc
,
895 uint8_t ind_old
, ind_new
;
899 ind_addr
= cpu_physical_memory_map(ind_loc
, &len
, 1);
901 error_report("%s(%x.%x.%04x): unable to access indicator",
902 __func__
, sch
->cssid
, sch
->ssid
, sch
->schid
);
907 ind_new
= ind_old
| to_be_set
;
908 } while (atomic_cmpxchg(ind_addr
, ind_old
, ind_new
) != ind_old
);
909 trace_virtio_ccw_set_ind(ind_loc
, ind_old
, ind_new
);
910 cpu_physical_memory_unmap(ind_addr
, len
, 1, len
);
915 static void virtio_ccw_notify(DeviceState
*d
, uint16_t vector
)
917 VirtioCcwDevice
*dev
= to_virtio_ccw_dev_fast(d
);
918 CcwDevice
*ccw_dev
= to_ccw_dev_fast(d
);
919 SubchDev
*sch
= ccw_dev
->sch
;
922 /* queue indicators + secondary indicators */
923 if (vector
>= VIRTIO_CCW_QUEUE_MAX
+ 64) {
927 if (vector
< VIRTIO_CCW_QUEUE_MAX
) {
928 if (!dev
->indicators
) {
931 if (sch
->thinint_active
) {
933 * In the adapter interrupt case, indicators points to a
934 * memory area that may be (way) larger than 64 bit and
935 * ind_bit indicates the start of the indicators in a big
938 uint64_t ind_bit
= dev
->routes
.adapter
.ind_offset
;
940 virtio_set_ind_atomic(sch
, dev
->indicators
->addr
+
941 (ind_bit
+ vector
) / 8,
942 0x80 >> ((ind_bit
+ vector
) % 8));
943 if (!virtio_set_ind_atomic(sch
, dev
->summary_indicator
->addr
,
945 css_adapter_interrupt(dev
->thinint_isc
);
948 indicators
= address_space_ldq(&address_space_memory
,
949 dev
->indicators
->addr
,
950 MEMTXATTRS_UNSPECIFIED
,
952 indicators
|= 1ULL << vector
;
953 address_space_stq(&address_space_memory
, dev
->indicators
->addr
,
954 indicators
, MEMTXATTRS_UNSPECIFIED
, NULL
);
955 css_conditional_io_interrupt(sch
);
958 if (!dev
->indicators2
) {
962 indicators
= address_space_ldq(&address_space_memory
,
963 dev
->indicators2
->addr
,
964 MEMTXATTRS_UNSPECIFIED
,
966 indicators
|= 1ULL << vector
;
967 address_space_stq(&address_space_memory
, dev
->indicators2
->addr
,
968 indicators
, MEMTXATTRS_UNSPECIFIED
, NULL
);
969 css_conditional_io_interrupt(sch
);
973 static void virtio_ccw_reset(DeviceState
*d
)
975 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
976 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
977 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
979 virtio_ccw_reset_virtio(dev
, vdev
);
980 css_reset_sch(ccw_dev
->sch
);
983 static void virtio_ccw_vmstate_change(DeviceState
*d
, bool running
)
985 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
988 virtio_ccw_start_ioeventfd(dev
);
990 virtio_ccw_stop_ioeventfd(dev
);
994 static bool virtio_ccw_query_guest_notifiers(DeviceState
*d
)
996 CcwDevice
*dev
= CCW_DEVICE(d
);
998 return !!(dev
->sch
->curr_status
.pmcw
.flags
& PMCW_FLAGS_MASK_ENA
);
1001 static int virtio_ccw_get_mappings(VirtioCcwDevice
*dev
)
1004 CcwDevice
*ccw_dev
= CCW_DEVICE(dev
);
1006 if (!ccw_dev
->sch
->thinint_active
) {
1010 r
= map_indicator(&dev
->routes
.adapter
, dev
->summary_indicator
);
1014 r
= map_indicator(&dev
->routes
.adapter
, dev
->indicators
);
1018 dev
->routes
.adapter
.summary_addr
= dev
->summary_indicator
->map
;
1019 dev
->routes
.adapter
.ind_addr
= dev
->indicators
->map
;
1024 static int virtio_ccw_setup_irqroutes(VirtioCcwDevice
*dev
, int nvqs
)
1027 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1029 S390FLICState
*fs
= s390_get_flic();
1030 S390FLICStateClass
*fsc
= S390_FLIC_COMMON_GET_CLASS(fs
);
1032 ret
= virtio_ccw_get_mappings(dev
);
1036 for (i
= 0; i
< nvqs
; i
++) {
1037 if (!virtio_queue_get_num(vdev
, i
)) {
1041 dev
->routes
.num_routes
= i
;
1042 return fsc
->add_adapter_routes(fs
, &dev
->routes
);
1045 static void virtio_ccw_release_irqroutes(VirtioCcwDevice
*dev
, int nvqs
)
1047 S390FLICState
*fs
= s390_get_flic();
1048 S390FLICStateClass
*fsc
= S390_FLIC_COMMON_GET_CLASS(fs
);
1050 fsc
->release_adapter_routes(fs
, &dev
->routes
);
1053 static int virtio_ccw_add_irqfd(VirtioCcwDevice
*dev
, int n
)
1055 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1056 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1057 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1059 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state
, notifier
, NULL
,
1060 dev
->routes
.gsi
[n
]);
1063 static void virtio_ccw_remove_irqfd(VirtioCcwDevice
*dev
, int n
)
1065 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1066 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1067 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1070 ret
= kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state
, notifier
,
1071 dev
->routes
.gsi
[n
]);
1075 static int virtio_ccw_set_guest_notifier(VirtioCcwDevice
*dev
, int n
,
1076 bool assign
, bool with_irqfd
)
1078 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1079 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1080 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1081 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
1084 int r
= event_notifier_init(notifier
, 0);
1089 virtio_queue_set_guest_notifier_fd_handler(vq
, true, with_irqfd
);
1091 r
= virtio_ccw_add_irqfd(dev
, n
);
1093 virtio_queue_set_guest_notifier_fd_handler(vq
, false,
1099 * We do not support individual masking for channel devices, so we
1100 * need to manually trigger any guest masking callbacks here.
1102 if (k
->guest_notifier_mask
) {
1103 k
->guest_notifier_mask(vdev
, n
, false);
1105 /* get lost events and re-inject */
1106 if (k
->guest_notifier_pending
&&
1107 k
->guest_notifier_pending(vdev
, n
)) {
1108 event_notifier_set(notifier
);
1111 if (k
->guest_notifier_mask
) {
1112 k
->guest_notifier_mask(vdev
, n
, true);
1115 virtio_ccw_remove_irqfd(dev
, n
);
1117 virtio_queue_set_guest_notifier_fd_handler(vq
, false, with_irqfd
);
1118 event_notifier_cleanup(notifier
);
1123 static int virtio_ccw_set_guest_notifiers(DeviceState
*d
, int nvqs
,
1126 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1127 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1128 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1129 bool with_irqfd
= ccw_dev
->sch
->thinint_active
&& kvm_irqfds_enabled();
1132 if (with_irqfd
&& assigned
) {
1133 /* irq routes need to be set up before assigning irqfds */
1134 r
= virtio_ccw_setup_irqroutes(dev
, nvqs
);
1136 goto irqroute_error
;
1139 for (n
= 0; n
< nvqs
; n
++) {
1140 if (!virtio_queue_get_num(vdev
, n
)) {
1143 r
= virtio_ccw_set_guest_notifier(dev
, n
, assigned
, with_irqfd
);
1148 if (with_irqfd
&& !assigned
) {
1149 /* release irq routes after irqfds have been released */
1150 virtio_ccw_release_irqroutes(dev
, nvqs
);
1156 virtio_ccw_set_guest_notifier(dev
, n
, !assigned
, false);
1159 if (with_irqfd
&& assigned
) {
1160 virtio_ccw_release_irqroutes(dev
, nvqs
);
1165 static void virtio_ccw_save_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
1167 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1168 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1170 qemu_put_be16(f
, virtio_queue_vector(vdev
, n
));
1173 static int virtio_ccw_load_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
1175 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1176 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1179 qemu_get_be16s(f
, &vector
);
1180 virtio_queue_set_vector(vdev
, n
, vector
);
1185 static void virtio_ccw_save_config(DeviceState
*d
, QEMUFile
*f
)
1187 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1188 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1189 SubchDev
*s
= ccw_dev
->sch
;
1190 VirtIODevice
*vdev
= virtio_ccw_get_vdev(s
);
1192 subch_device_save(s
, f
);
1193 if (dev
->indicators
!= NULL
) {
1194 qemu_put_be32(f
, dev
->indicators
->len
);
1195 qemu_put_be64(f
, dev
->indicators
->addr
);
1197 qemu_put_be32(f
, 0);
1198 qemu_put_be64(f
, 0UL);
1200 if (dev
->indicators2
!= NULL
) {
1201 qemu_put_be32(f
, dev
->indicators2
->len
);
1202 qemu_put_be64(f
, dev
->indicators2
->addr
);
1204 qemu_put_be32(f
, 0);
1205 qemu_put_be64(f
, 0UL);
1207 if (dev
->summary_indicator
!= NULL
) {
1208 qemu_put_be32(f
, dev
->summary_indicator
->len
);
1209 qemu_put_be64(f
, dev
->summary_indicator
->addr
);
1211 qemu_put_be32(f
, 0);
1212 qemu_put_be64(f
, 0UL);
1214 qemu_put_be16(f
, vdev
->config_vector
);
1215 qemu_put_be64(f
, dev
->routes
.adapter
.ind_offset
);
1216 qemu_put_byte(f
, dev
->thinint_isc
);
1217 qemu_put_be32(f
, dev
->revision
);
1220 static int virtio_ccw_load_config(DeviceState
*d
, QEMUFile
*f
)
1222 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1223 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1224 SubchDev
*s
= ccw_dev
->sch
;
1225 VirtIODevice
*vdev
= virtio_ccw_get_vdev(s
);
1228 s
->driver_data
= dev
;
1229 subch_device_load(s
, f
);
1230 len
= qemu_get_be32(f
);
1232 dev
->indicators
= get_indicator(qemu_get_be64(f
), len
);
1235 dev
->indicators
= NULL
;
1237 len
= qemu_get_be32(f
);
1239 dev
->indicators2
= get_indicator(qemu_get_be64(f
), len
);
1242 dev
->indicators2
= NULL
;
1244 len
= qemu_get_be32(f
);
1246 dev
->summary_indicator
= get_indicator(qemu_get_be64(f
), len
);
1249 dev
->summary_indicator
= NULL
;
1251 qemu_get_be16s(f
, &vdev
->config_vector
);
1252 dev
->routes
.adapter
.ind_offset
= qemu_get_be64(f
);
1253 dev
->thinint_isc
= qemu_get_byte(f
);
1254 dev
->revision
= qemu_get_be32(f
);
1255 if (s
->thinint_active
) {
1256 return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO
,
1257 dev
->thinint_isc
, true, false,
1258 &dev
->routes
.adapter
.adapter_id
);
1264 /* This is called by virtio-bus just after the device is plugged. */
1265 static void virtio_ccw_device_plugged(DeviceState
*d
, Error
**errp
)
1267 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1268 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1269 CcwDevice
*ccw_dev
= CCW_DEVICE(d
);
1270 SubchDev
*sch
= ccw_dev
->sch
;
1271 int n
= virtio_get_num_queues(vdev
);
1273 if (virtio_get_num_queues(vdev
) > VIRTIO_CCW_QUEUE_MAX
) {
1274 error_setg(errp
, "The number of virtqueues %d "
1275 "exceeds ccw limit %d", n
,
1276 VIRTIO_CCW_QUEUE_MAX
);
1280 if (!kvm_eventfds_enabled()) {
1281 dev
->flags
&= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD
;
1284 sch
->id
.cu_model
= virtio_bus_get_vdev_id(&dev
->bus
);
1286 if (dev
->max_rev
>= 1) {
1287 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_VERSION_1
);
1290 css_generate_sch_crws(sch
->cssid
, sch
->ssid
, sch
->schid
,
1294 static void virtio_ccw_post_plugged(DeviceState
*d
, Error
**errp
)
1296 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1297 VirtIODevice
*vdev
= virtio_bus_get_device(&dev
->bus
);
1299 if (!virtio_host_has_feature(vdev
, VIRTIO_F_VERSION_1
)) {
1300 /* A backend didn't support modern virtio. */
1305 static void virtio_ccw_device_unplugged(DeviceState
*d
)
1307 VirtioCcwDevice
*dev
= VIRTIO_CCW_DEVICE(d
);
1309 virtio_ccw_stop_ioeventfd(dev
);
1311 /**************** Virtio-ccw Bus Device Descriptions *******************/
1313 static Property virtio_ccw_net_properties
[] = {
1314 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1315 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1316 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1317 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1318 VIRTIO_CCW_MAX_REV
),
1319 DEFINE_PROP_END_OF_LIST(),
1322 static void virtio_ccw_net_class_init(ObjectClass
*klass
, void *data
)
1324 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1325 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1327 k
->realize
= virtio_ccw_net_realize
;
1328 k
->exit
= virtio_ccw_exit
;
1329 dc
->reset
= virtio_ccw_reset
;
1330 dc
->props
= virtio_ccw_net_properties
;
1331 set_bit(DEVICE_CATEGORY_NETWORK
, dc
->categories
);
1334 static const TypeInfo virtio_ccw_net
= {
1335 .name
= TYPE_VIRTIO_NET_CCW
,
1336 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1337 .instance_size
= sizeof(VirtIONetCcw
),
1338 .instance_init
= virtio_ccw_net_instance_init
,
1339 .class_init
= virtio_ccw_net_class_init
,
1342 static Property virtio_ccw_blk_properties
[] = {
1343 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1344 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1345 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1346 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1347 VIRTIO_CCW_MAX_REV
),
1348 DEFINE_PROP_END_OF_LIST(),
1351 static void virtio_ccw_blk_class_init(ObjectClass
*klass
, void *data
)
1353 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1354 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1356 k
->realize
= virtio_ccw_blk_realize
;
1357 k
->exit
= virtio_ccw_exit
;
1358 dc
->reset
= virtio_ccw_reset
;
1359 dc
->props
= virtio_ccw_blk_properties
;
1360 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1363 static const TypeInfo virtio_ccw_blk
= {
1364 .name
= TYPE_VIRTIO_BLK_CCW
,
1365 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1366 .instance_size
= sizeof(VirtIOBlkCcw
),
1367 .instance_init
= virtio_ccw_blk_instance_init
,
1368 .class_init
= virtio_ccw_blk_class_init
,
1371 static Property virtio_ccw_serial_properties
[] = {
1372 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1373 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1374 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1375 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1376 VIRTIO_CCW_MAX_REV
),
1377 DEFINE_PROP_END_OF_LIST(),
1380 static void virtio_ccw_serial_class_init(ObjectClass
*klass
, void *data
)
1382 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1383 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1385 k
->realize
= virtio_ccw_serial_realize
;
1386 k
->exit
= virtio_ccw_exit
;
1387 dc
->reset
= virtio_ccw_reset
;
1388 dc
->props
= virtio_ccw_serial_properties
;
1389 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
1392 static const TypeInfo virtio_ccw_serial
= {
1393 .name
= TYPE_VIRTIO_SERIAL_CCW
,
1394 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1395 .instance_size
= sizeof(VirtioSerialCcw
),
1396 .instance_init
= virtio_ccw_serial_instance_init
,
1397 .class_init
= virtio_ccw_serial_class_init
,
1400 static Property virtio_ccw_balloon_properties
[] = {
1401 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1402 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1403 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1404 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1405 VIRTIO_CCW_MAX_REV
),
1406 DEFINE_PROP_END_OF_LIST(),
1409 static void virtio_ccw_balloon_class_init(ObjectClass
*klass
, void *data
)
1411 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1412 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1414 k
->realize
= virtio_ccw_balloon_realize
;
1415 k
->exit
= virtio_ccw_exit
;
1416 dc
->reset
= virtio_ccw_reset
;
1417 dc
->props
= virtio_ccw_balloon_properties
;
1418 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
1421 static const TypeInfo virtio_ccw_balloon
= {
1422 .name
= TYPE_VIRTIO_BALLOON_CCW
,
1423 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1424 .instance_size
= sizeof(VirtIOBalloonCcw
),
1425 .instance_init
= virtio_ccw_balloon_instance_init
,
1426 .class_init
= virtio_ccw_balloon_class_init
,
1429 static Property virtio_ccw_scsi_properties
[] = {
1430 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1431 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1432 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1433 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1434 VIRTIO_CCW_MAX_REV
),
1435 DEFINE_PROP_END_OF_LIST(),
1438 static void virtio_ccw_scsi_class_init(ObjectClass
*klass
, void *data
)
1440 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1441 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1443 k
->realize
= virtio_ccw_scsi_realize
;
1444 k
->exit
= virtio_ccw_exit
;
1445 dc
->reset
= virtio_ccw_reset
;
1446 dc
->props
= virtio_ccw_scsi_properties
;
1447 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1450 static const TypeInfo virtio_ccw_scsi
= {
1451 .name
= TYPE_VIRTIO_SCSI_CCW
,
1452 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1453 .instance_size
= sizeof(VirtIOSCSICcw
),
1454 .instance_init
= virtio_ccw_scsi_instance_init
,
1455 .class_init
= virtio_ccw_scsi_class_init
,
1458 #ifdef CONFIG_VHOST_SCSI
1459 static Property vhost_ccw_scsi_properties
[] = {
1460 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1461 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1462 VIRTIO_CCW_MAX_REV
),
1463 DEFINE_PROP_END_OF_LIST(),
1466 static void vhost_ccw_scsi_class_init(ObjectClass
*klass
, void *data
)
1468 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1469 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1471 k
->realize
= vhost_ccw_scsi_realize
;
1472 k
->exit
= virtio_ccw_exit
;
1473 dc
->reset
= virtio_ccw_reset
;
1474 dc
->props
= vhost_ccw_scsi_properties
;
1475 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1478 static const TypeInfo vhost_ccw_scsi
= {
1479 .name
= TYPE_VHOST_SCSI_CCW
,
1480 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1481 .instance_size
= sizeof(VHostSCSICcw
),
1482 .instance_init
= vhost_ccw_scsi_instance_init
,
1483 .class_init
= vhost_ccw_scsi_class_init
,
1487 static void virtio_ccw_rng_instance_init(Object
*obj
)
1489 VirtIORNGCcw
*dev
= VIRTIO_RNG_CCW(obj
);
1491 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1493 object_property_add_alias(obj
, "rng", OBJECT(&dev
->vdev
),
1494 "rng", &error_abort
);
1497 static Property virtio_ccw_rng_properties
[] = {
1498 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1499 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1500 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1501 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1502 VIRTIO_CCW_MAX_REV
),
1503 DEFINE_PROP_END_OF_LIST(),
1506 static void virtio_ccw_rng_class_init(ObjectClass
*klass
, void *data
)
1508 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1509 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1511 k
->realize
= virtio_ccw_rng_realize
;
1512 k
->exit
= virtio_ccw_exit
;
1513 dc
->reset
= virtio_ccw_reset
;
1514 dc
->props
= virtio_ccw_rng_properties
;
1515 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
1518 static const TypeInfo virtio_ccw_rng
= {
1519 .name
= TYPE_VIRTIO_RNG_CCW
,
1520 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1521 .instance_size
= sizeof(VirtIORNGCcw
),
1522 .instance_init
= virtio_ccw_rng_instance_init
,
1523 .class_init
= virtio_ccw_rng_class_init
,
1526 static void virtio_ccw_busdev_realize(DeviceState
*dev
, Error
**errp
)
1528 VirtioCcwDevice
*_dev
= (VirtioCcwDevice
*)dev
;
1530 virtio_ccw_bus_new(&_dev
->bus
, sizeof(_dev
->bus
), _dev
);
1531 virtio_ccw_device_realize(_dev
, errp
);
1534 static int virtio_ccw_busdev_exit(DeviceState
*dev
)
1536 VirtioCcwDevice
*_dev
= (VirtioCcwDevice
*)dev
;
1537 VirtIOCCWDeviceClass
*_info
= VIRTIO_CCW_DEVICE_GET_CLASS(dev
);
1539 return _info
->exit(_dev
);
1542 static void virtio_ccw_busdev_unplug(HotplugHandler
*hotplug_dev
,
1543 DeviceState
*dev
, Error
**errp
)
1545 VirtioCcwDevice
*_dev
= to_virtio_ccw_dev_fast(dev
);
1547 virtio_ccw_stop_ioeventfd(_dev
);
1550 static void virtio_ccw_device_class_init(ObjectClass
*klass
, void *data
)
1552 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1553 CCWDeviceClass
*k
= CCW_DEVICE_CLASS(dc
);
1555 k
->unplug
= virtio_ccw_busdev_unplug
;
1556 dc
->realize
= virtio_ccw_busdev_realize
;
1557 dc
->exit
= virtio_ccw_busdev_exit
;
1558 dc
->bus_type
= TYPE_VIRTUAL_CSS_BUS
;
1561 static const TypeInfo virtio_ccw_device_info
= {
1562 .name
= TYPE_VIRTIO_CCW_DEVICE
,
1563 .parent
= TYPE_CCW_DEVICE
,
1564 .instance_size
= sizeof(VirtioCcwDevice
),
1565 .class_init
= virtio_ccw_device_class_init
,
1566 .class_size
= sizeof(VirtIOCCWDeviceClass
),
1570 /* virtio-ccw-bus */
1572 static void virtio_ccw_bus_new(VirtioBusState
*bus
, size_t bus_size
,
1573 VirtioCcwDevice
*dev
)
1575 DeviceState
*qdev
= DEVICE(dev
);
1576 char virtio_bus_name
[] = "virtio-bus";
1578 qbus_create_inplace(bus
, bus_size
, TYPE_VIRTIO_CCW_BUS
,
1579 qdev
, virtio_bus_name
);
1582 static void virtio_ccw_bus_class_init(ObjectClass
*klass
, void *data
)
1584 VirtioBusClass
*k
= VIRTIO_BUS_CLASS(klass
);
1585 BusClass
*bus_class
= BUS_CLASS(klass
);
1587 bus_class
->max_dev
= 1;
1588 k
->notify
= virtio_ccw_notify
;
1589 k
->vmstate_change
= virtio_ccw_vmstate_change
;
1590 k
->query_guest_notifiers
= virtio_ccw_query_guest_notifiers
;
1591 k
->set_guest_notifiers
= virtio_ccw_set_guest_notifiers
;
1592 k
->save_queue
= virtio_ccw_save_queue
;
1593 k
->load_queue
= virtio_ccw_load_queue
;
1594 k
->save_config
= virtio_ccw_save_config
;
1595 k
->load_config
= virtio_ccw_load_config
;
1596 k
->device_plugged
= virtio_ccw_device_plugged
;
1597 k
->post_plugged
= virtio_ccw_post_plugged
;
1598 k
->device_unplugged
= virtio_ccw_device_unplugged
;
1599 k
->ioeventfd_started
= virtio_ccw_ioeventfd_started
;
1600 k
->ioeventfd_set_started
= virtio_ccw_ioeventfd_set_started
;
1601 k
->ioeventfd_disabled
= virtio_ccw_ioeventfd_disabled
;
1602 k
->ioeventfd_set_disabled
= virtio_ccw_ioeventfd_set_disabled
;
1603 k
->ioeventfd_assign
= virtio_ccw_ioeventfd_assign
;
1606 static const TypeInfo virtio_ccw_bus_info
= {
1607 .name
= TYPE_VIRTIO_CCW_BUS
,
1608 .parent
= TYPE_VIRTIO_BUS
,
1609 .instance_size
= sizeof(VirtioCcwBusState
),
1610 .class_init
= virtio_ccw_bus_class_init
,
1613 #ifdef CONFIG_VIRTFS
1614 static Property virtio_ccw_9p_properties
[] = {
1615 DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice
, parent_obj
.bus_id
),
1616 DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice
, flags
,
1617 VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT
, true),
1618 DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice
, max_rev
,
1619 VIRTIO_CCW_MAX_REV
),
1620 DEFINE_PROP_END_OF_LIST(),
1623 static void virtio_ccw_9p_realize(VirtioCcwDevice
*ccw_dev
, Error
**errp
)
1625 V9fsCCWState
*dev
= VIRTIO_9P_CCW(ccw_dev
);
1626 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1628 qdev_set_parent_bus(vdev
, BUS(&ccw_dev
->bus
));
1629 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1632 static void virtio_ccw_9p_class_init(ObjectClass
*klass
, void *data
)
1634 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1635 VirtIOCCWDeviceClass
*k
= VIRTIO_CCW_DEVICE_CLASS(klass
);
1637 k
->exit
= virtio_ccw_exit
;
1638 k
->realize
= virtio_ccw_9p_realize
;
1639 dc
->reset
= virtio_ccw_reset
;
1640 dc
->props
= virtio_ccw_9p_properties
;
1641 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1644 static void virtio_ccw_9p_instance_init(Object
*obj
)
1646 V9fsCCWState
*dev
= VIRTIO_9P_CCW(obj
);
1648 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1652 static const TypeInfo virtio_ccw_9p_info
= {
1653 .name
= TYPE_VIRTIO_9P_CCW
,
1654 .parent
= TYPE_VIRTIO_CCW_DEVICE
,
1655 .instance_size
= sizeof(V9fsCCWState
),
1656 .instance_init
= virtio_ccw_9p_instance_init
,
1657 .class_init
= virtio_ccw_9p_class_init
,
1661 static void virtio_ccw_register(void)
1663 type_register_static(&virtio_ccw_bus_info
);
1664 type_register_static(&virtio_ccw_device_info
);
1665 type_register_static(&virtio_ccw_serial
);
1666 type_register_static(&virtio_ccw_blk
);
1667 type_register_static(&virtio_ccw_net
);
1668 type_register_static(&virtio_ccw_balloon
);
1669 type_register_static(&virtio_ccw_scsi
);
1670 #ifdef CONFIG_VHOST_SCSI
1671 type_register_static(&vhost_ccw_scsi
);
1673 type_register_static(&virtio_ccw_rng
);
1674 #ifdef CONFIG_VIRTFS
1675 type_register_static(&virtio_ccw_9p_info
);
1679 type_init(virtio_ccw_register
)