1a5cf2bb4SCornelia Huck /* 2a5cf2bb4SCornelia Huck * virtio ccw target implementation 3a5cf2bb4SCornelia Huck * 4de6a9218SPierre Morel * Copyright 2012,2015 IBM Corp. 5a5cf2bb4SCornelia Huck * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com> 6de6a9218SPierre Morel * Pierre Morel <pmorel@linux.vnet.ibm.com> 7a5cf2bb4SCornelia Huck * 8a5cf2bb4SCornelia Huck * This work is licensed under the terms of the GNU GPL, version 2 or (at 9a5cf2bb4SCornelia Huck * your option) any later version. See the COPYING file in the top-level 10a5cf2bb4SCornelia Huck * directory. 11a5cf2bb4SCornelia Huck */ 12a5cf2bb4SCornelia Huck 13a5cf2bb4SCornelia Huck #include "hw/hw.h" 144be74634SMarkus Armbruster #include "sysemu/block-backend.h" 15a5cf2bb4SCornelia Huck #include "sysemu/blockdev.h" 16a5cf2bb4SCornelia Huck #include "sysemu/sysemu.h" 17a5cf2bb4SCornelia Huck #include "net/net.h" 180d09e41aSPaolo Bonzini #include "hw/virtio/virtio.h" 190d09e41aSPaolo Bonzini #include "hw/virtio/virtio-serial.h" 200d09e41aSPaolo Bonzini #include "hw/virtio/virtio-net.h" 21a5cf2bb4SCornelia Huck #include "hw/sysbus.h" 22a5cf2bb4SCornelia Huck #include "qemu/bitops.h" 23d49b6836SMarkus Armbruster #include "qemu/error-report.h" 24c42767f2SThomas Huth #include "hw/virtio/virtio-access.h" 250d09e41aSPaolo Bonzini #include "hw/virtio/virtio-bus.h" 26d426d9fbSCornelia Huck #include "hw/s390x/adapter.h" 27d426d9fbSCornelia Huck #include "hw/s390x/s390_flic.h" 28a5cf2bb4SCornelia Huck 29a5cf2bb4SCornelia Huck #include "ioinst.h" 30a5cf2bb4SCornelia Huck #include "css.h" 31a5cf2bb4SCornelia Huck #include "virtio-ccw.h" 32a5cf2bb4SCornelia Huck #include "trace.h" 33a5cf2bb4SCornelia Huck 347bca3892SCornelia Huck static QTAILQ_HEAD(, IndAddr) indicator_addresses = 357bca3892SCornelia Huck QTAILQ_HEAD_INITIALIZER(indicator_addresses); 367bca3892SCornelia Huck 377bca3892SCornelia Huck static IndAddr *get_indicator(hwaddr ind_addr, int len) 387bca3892SCornelia Huck { 397bca3892SCornelia Huck IndAddr *indicator; 407bca3892SCornelia Huck 417bca3892SCornelia Huck QTAILQ_FOREACH(indicator, &indicator_addresses, sibling) { 427bca3892SCornelia Huck if (indicator->addr == ind_addr) { 437bca3892SCornelia Huck indicator->refcnt++; 447bca3892SCornelia Huck return indicator; 457bca3892SCornelia Huck } 467bca3892SCornelia Huck } 477bca3892SCornelia Huck indicator = g_new0(IndAddr, 1); 487bca3892SCornelia Huck indicator->addr = ind_addr; 497bca3892SCornelia Huck indicator->len = len; 507bca3892SCornelia Huck indicator->refcnt = 1; 517bca3892SCornelia Huck QTAILQ_INSERT_TAIL(&indicator_addresses, indicator, sibling); 527bca3892SCornelia Huck return indicator; 537bca3892SCornelia Huck } 547bca3892SCornelia Huck 55d426d9fbSCornelia Huck static int s390_io_adapter_map(AdapterInfo *adapter, uint64_t map_addr, 56d426d9fbSCornelia Huck bool do_map) 57d426d9fbSCornelia Huck { 58d426d9fbSCornelia Huck S390FLICState *fs = s390_get_flic(); 59d426d9fbSCornelia Huck S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); 60d426d9fbSCornelia Huck 61d426d9fbSCornelia Huck return fsc->io_adapter_map(fs, adapter->adapter_id, map_addr, do_map); 62d426d9fbSCornelia Huck } 63d426d9fbSCornelia Huck 64d426d9fbSCornelia Huck static void release_indicator(AdapterInfo *adapter, IndAddr *indicator) 657bca3892SCornelia Huck { 667bca3892SCornelia Huck assert(indicator->refcnt > 0); 677bca3892SCornelia Huck indicator->refcnt--; 687bca3892SCornelia Huck if (indicator->refcnt > 0) { 697bca3892SCornelia Huck return; 707bca3892SCornelia Huck } 717bca3892SCornelia Huck QTAILQ_REMOVE(&indicator_addresses, indicator, sibling); 72d426d9fbSCornelia Huck if (indicator->map) { 73d426d9fbSCornelia Huck s390_io_adapter_map(adapter, indicator->map, false); 74d426d9fbSCornelia Huck } 757bca3892SCornelia Huck g_free(indicator); 767bca3892SCornelia Huck } 777bca3892SCornelia Huck 78d426d9fbSCornelia Huck static int map_indicator(AdapterInfo *adapter, IndAddr *indicator) 79d426d9fbSCornelia Huck { 80d426d9fbSCornelia Huck int ret; 81d426d9fbSCornelia Huck 82d426d9fbSCornelia Huck if (indicator->map) { 83d426d9fbSCornelia Huck return 0; /* already mapped is not an error */ 84d426d9fbSCornelia Huck } 85d426d9fbSCornelia Huck indicator->map = indicator->addr; 86d426d9fbSCornelia Huck ret = s390_io_adapter_map(adapter, indicator->map, true); 87d426d9fbSCornelia Huck if ((ret != 0) && (ret != -ENOSYS)) { 88d426d9fbSCornelia Huck goto out_err; 89d426d9fbSCornelia Huck } 90d426d9fbSCornelia Huck return 0; 91d426d9fbSCornelia Huck 92d426d9fbSCornelia Huck out_err: 93d426d9fbSCornelia Huck indicator->map = 0; 94d426d9fbSCornelia Huck return ret; 95d426d9fbSCornelia Huck } 96d426d9fbSCornelia Huck 971bf4d7aaSAndreas Färber static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 981bf4d7aaSAndreas Färber VirtioCcwDevice *dev); 99d51fcfacSKONRAD Frederic 100dcc20931SPaolo Bonzini static void virtual_css_bus_reset(BusState *qbus) 101a5cf2bb4SCornelia Huck { 102a5cf2bb4SCornelia Huck /* This should actually be modelled via the generic css */ 103a5cf2bb4SCornelia Huck css_reset(); 104a5cf2bb4SCornelia Huck } 105a5cf2bb4SCornelia Huck 106a5cf2bb4SCornelia Huck 107a5cf2bb4SCornelia Huck static void virtual_css_bus_class_init(ObjectClass *klass, void *data) 108a5cf2bb4SCornelia Huck { 109a5cf2bb4SCornelia Huck BusClass *k = BUS_CLASS(klass); 110a5cf2bb4SCornelia Huck 111a5cf2bb4SCornelia Huck k->reset = virtual_css_bus_reset; 112a5cf2bb4SCornelia Huck } 113a5cf2bb4SCornelia Huck 114a5cf2bb4SCornelia Huck static const TypeInfo virtual_css_bus_info = { 115a5cf2bb4SCornelia Huck .name = TYPE_VIRTUAL_CSS_BUS, 116a5cf2bb4SCornelia Huck .parent = TYPE_BUS, 117a5cf2bb4SCornelia Huck .instance_size = sizeof(VirtualCssBus), 118a5cf2bb4SCornelia Huck .class_init = virtual_css_bus_class_init, 119a5cf2bb4SCornelia Huck }; 120a5cf2bb4SCornelia Huck 121a5cf2bb4SCornelia Huck VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch) 122a5cf2bb4SCornelia Huck { 123a5cf2bb4SCornelia Huck VirtIODevice *vdev = NULL; 124f24a6840SPaolo Bonzini VirtioCcwDevice *dev = sch->driver_data; 125a5cf2bb4SCornelia Huck 126f24a6840SPaolo Bonzini if (dev) { 127f24a6840SPaolo Bonzini vdev = virtio_bus_get_device(&dev->bus); 128a5cf2bb4SCornelia Huck } 129a5cf2bb4SCornelia Huck return vdev; 130a5cf2bb4SCornelia Huck } 131a5cf2bb4SCornelia Huck 132b4436a0bSCornelia Huck static int virtio_ccw_set_guest2host_notifier(VirtioCcwDevice *dev, int n, 133b4436a0bSCornelia Huck bool assign, bool set_handler) 134b4436a0bSCornelia Huck { 135f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 136f24a6840SPaolo Bonzini VirtQueue *vq = virtio_get_queue(vdev, n); 137b4436a0bSCornelia Huck EventNotifier *notifier = virtio_queue_get_host_notifier(vq); 138b4436a0bSCornelia Huck int r = 0; 139b4436a0bSCornelia Huck SubchDev *sch = dev->sch; 140b4436a0bSCornelia Huck uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid; 141b4436a0bSCornelia Huck 142b4436a0bSCornelia Huck if (assign) { 143b4436a0bSCornelia Huck r = event_notifier_init(notifier, 1); 144b4436a0bSCornelia Huck if (r < 0) { 145b4436a0bSCornelia Huck error_report("%s: unable to init event notifier: %d", __func__, r); 146b4436a0bSCornelia Huck return r; 147b4436a0bSCornelia Huck } 148b4436a0bSCornelia Huck virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler); 149cc3ac9c4SCornelia Huck r = s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 150b4436a0bSCornelia Huck if (r < 0) { 151b4436a0bSCornelia Huck error_report("%s: unable to assign ioeventfd: %d", __func__, r); 152b4436a0bSCornelia Huck virtio_queue_set_host_notifier_fd_handler(vq, false, false); 153b4436a0bSCornelia Huck event_notifier_cleanup(notifier); 154b4436a0bSCornelia Huck return r; 155b4436a0bSCornelia Huck } 156b4436a0bSCornelia Huck } else { 157b4436a0bSCornelia Huck virtio_queue_set_host_notifier_fd_handler(vq, false, false); 158cc3ac9c4SCornelia Huck s390_assign_subch_ioeventfd(notifier, sch_id, n, assign); 159b4436a0bSCornelia Huck event_notifier_cleanup(notifier); 160b4436a0bSCornelia Huck } 161b4436a0bSCornelia Huck return r; 162b4436a0bSCornelia Huck } 163b4436a0bSCornelia Huck 164b4436a0bSCornelia Huck static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev) 165b4436a0bSCornelia Huck { 166f24a6840SPaolo Bonzini VirtIODevice *vdev; 167b4436a0bSCornelia Huck int n, r; 168b4436a0bSCornelia Huck 169b4436a0bSCornelia Huck if (!(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) || 170320ce850SCornelia Huck dev->ioeventfd_disabled || 171b4436a0bSCornelia Huck dev->ioeventfd_started) { 172b4436a0bSCornelia Huck return; 173b4436a0bSCornelia Huck } 174f24a6840SPaolo Bonzini vdev = virtio_bus_get_device(&dev->bus); 1758dfbaa6aSJason Wang for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) { 176f24a6840SPaolo Bonzini if (!virtio_queue_get_num(vdev, n)) { 177b4436a0bSCornelia Huck continue; 178b4436a0bSCornelia Huck } 179b4436a0bSCornelia Huck r = virtio_ccw_set_guest2host_notifier(dev, n, true, true); 180b4436a0bSCornelia Huck if (r < 0) { 181b4436a0bSCornelia Huck goto assign_error; 182b4436a0bSCornelia Huck } 183b4436a0bSCornelia Huck } 184b4436a0bSCornelia Huck dev->ioeventfd_started = true; 185b4436a0bSCornelia Huck return; 186b4436a0bSCornelia Huck 187b4436a0bSCornelia Huck assign_error: 188b4436a0bSCornelia Huck while (--n >= 0) { 189f24a6840SPaolo Bonzini if (!virtio_queue_get_num(vdev, n)) { 190b4436a0bSCornelia Huck continue; 191b4436a0bSCornelia Huck } 192b4436a0bSCornelia Huck r = virtio_ccw_set_guest2host_notifier(dev, n, false, false); 193b4436a0bSCornelia Huck assert(r >= 0); 194b4436a0bSCornelia Huck } 195b4436a0bSCornelia Huck dev->ioeventfd_started = false; 196b4436a0bSCornelia Huck /* Disable ioeventfd for this device. */ 197b4436a0bSCornelia Huck dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 198b4436a0bSCornelia Huck error_report("%s: failed. Fallback to userspace (slower).", __func__); 199b4436a0bSCornelia Huck } 200b4436a0bSCornelia Huck 201b4436a0bSCornelia Huck static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev) 202b4436a0bSCornelia Huck { 203f24a6840SPaolo Bonzini VirtIODevice *vdev; 204b4436a0bSCornelia Huck int n, r; 205b4436a0bSCornelia Huck 206b4436a0bSCornelia Huck if (!dev->ioeventfd_started) { 207b4436a0bSCornelia Huck return; 208b4436a0bSCornelia Huck } 209f24a6840SPaolo Bonzini vdev = virtio_bus_get_device(&dev->bus); 2108dfbaa6aSJason Wang for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) { 211f24a6840SPaolo Bonzini if (!virtio_queue_get_num(vdev, n)) { 212b4436a0bSCornelia Huck continue; 213b4436a0bSCornelia Huck } 214b4436a0bSCornelia Huck r = virtio_ccw_set_guest2host_notifier(dev, n, false, false); 215b4436a0bSCornelia Huck assert(r >= 0); 216b4436a0bSCornelia Huck } 217b4436a0bSCornelia Huck dev->ioeventfd_started = false; 218b4436a0bSCornelia Huck } 219b4436a0bSCornelia Huck 220a5cf2bb4SCornelia Huck VirtualCssBus *virtual_css_bus_init(void) 221a5cf2bb4SCornelia Huck { 222a5cf2bb4SCornelia Huck VirtualCssBus *cbus; 223a5cf2bb4SCornelia Huck BusState *bus; 224a5cf2bb4SCornelia Huck DeviceState *dev; 225a5cf2bb4SCornelia Huck 226a5cf2bb4SCornelia Huck /* Create bridge device */ 227a5cf2bb4SCornelia Huck dev = qdev_create(NULL, "virtual-css-bridge"); 228a5cf2bb4SCornelia Huck qdev_init_nofail(dev); 229a5cf2bb4SCornelia Huck 230a5cf2bb4SCornelia Huck /* Create bus on bridge device */ 231a5cf2bb4SCornelia Huck bus = qbus_create(TYPE_VIRTUAL_CSS_BUS, dev, "virtual-css"); 232a5cf2bb4SCornelia Huck cbus = VIRTUAL_CSS_BUS(bus); 233a5cf2bb4SCornelia Huck 234a5cf2bb4SCornelia Huck /* Enable hotplugging */ 235277bc95eSIgor Mammedov qbus_set_hotplug_handler(bus, dev, &error_abort); 236a5cf2bb4SCornelia Huck 237a5cf2bb4SCornelia Huck return cbus; 238a5cf2bb4SCornelia Huck } 239a5cf2bb4SCornelia Huck 240a5cf2bb4SCornelia Huck /* Communication blocks used by several channel commands. */ 2410db87e0dSCornelia Huck typedef struct VqInfoBlockLegacy { 242a5cf2bb4SCornelia Huck uint64_t queue; 243a5cf2bb4SCornelia Huck uint32_t align; 244a5cf2bb4SCornelia Huck uint16_t index; 245a5cf2bb4SCornelia Huck uint16_t num; 2460db87e0dSCornelia Huck } QEMU_PACKED VqInfoBlockLegacy; 2470db87e0dSCornelia Huck 2480db87e0dSCornelia Huck typedef struct VqInfoBlock { 2490db87e0dSCornelia Huck uint64_t desc; 2500db87e0dSCornelia Huck uint32_t res0; 2510db87e0dSCornelia Huck uint16_t index; 2520db87e0dSCornelia Huck uint16_t num; 2530db87e0dSCornelia Huck uint64_t avail; 2540db87e0dSCornelia Huck uint64_t used; 255a5cf2bb4SCornelia Huck } QEMU_PACKED VqInfoBlock; 256a5cf2bb4SCornelia Huck 257a5cf2bb4SCornelia Huck typedef struct VqConfigBlock { 258a5cf2bb4SCornelia Huck uint16_t index; 259a5cf2bb4SCornelia Huck uint16_t num_max; 260a5cf2bb4SCornelia Huck } QEMU_PACKED VqConfigBlock; 261a5cf2bb4SCornelia Huck 262a5cf2bb4SCornelia Huck typedef struct VirtioFeatDesc { 263a5cf2bb4SCornelia Huck uint32_t features; 264a5cf2bb4SCornelia Huck uint8_t index; 265a5cf2bb4SCornelia Huck } QEMU_PACKED VirtioFeatDesc; 266a5cf2bb4SCornelia Huck 2677e749462SCornelia Huck typedef struct VirtioThinintInfo { 2687e749462SCornelia Huck hwaddr summary_indicator; 2697e749462SCornelia Huck hwaddr device_indicator; 2707e749462SCornelia Huck uint64_t ind_bit; 2717e749462SCornelia Huck uint8_t isc; 2727e749462SCornelia Huck } QEMU_PACKED VirtioThinintInfo; 2737e749462SCornelia Huck 274c42767f2SThomas Huth typedef struct VirtioRevInfo { 275c42767f2SThomas Huth uint16_t revision; 276c42767f2SThomas Huth uint16_t length; 277c42767f2SThomas Huth uint8_t data[0]; 278c42767f2SThomas Huth } QEMU_PACKED VirtioRevInfo; 279c42767f2SThomas Huth 280a5cf2bb4SCornelia Huck /* Specify where the virtqueues for the subchannel are in guest memory. */ 2810db87e0dSCornelia Huck static int virtio_ccw_set_vqs(SubchDev *sch, VqInfoBlock *info, 2820db87e0dSCornelia Huck VqInfoBlockLegacy *linfo) 283a5cf2bb4SCornelia Huck { 284f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 2850db87e0dSCornelia Huck uint16_t index = info ? info->index : linfo->index; 2860db87e0dSCornelia Huck uint16_t num = info ? info->num : linfo->num; 2870db87e0dSCornelia Huck uint64_t desc = info ? info->desc : linfo->queue; 288a5cf2bb4SCornelia Huck 2898dfbaa6aSJason Wang if (index >= VIRTIO_CCW_QUEUE_MAX) { 290a5cf2bb4SCornelia Huck return -EINVAL; 291a5cf2bb4SCornelia Huck } 292a5cf2bb4SCornelia Huck 293a5cf2bb4SCornelia Huck /* Current code in virtio.c relies on 4K alignment. */ 2940db87e0dSCornelia Huck if (linfo && desc && (linfo->align != 4096)) { 295a5cf2bb4SCornelia Huck return -EINVAL; 296a5cf2bb4SCornelia Huck } 297a5cf2bb4SCornelia Huck 298f24a6840SPaolo Bonzini if (!vdev) { 299a5cf2bb4SCornelia Huck return -EINVAL; 300a5cf2bb4SCornelia Huck } 301a5cf2bb4SCornelia Huck 3020db87e0dSCornelia Huck if (info) { 3030db87e0dSCornelia Huck virtio_queue_set_rings(vdev, index, desc, info->avail, info->used); 3040db87e0dSCornelia Huck } else { 3050db87e0dSCornelia Huck virtio_queue_set_addr(vdev, index, desc); 3060db87e0dSCornelia Huck } 3070db87e0dSCornelia Huck if (!desc) { 308955cc8c9SJason Wang virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR); 309a5cf2bb4SCornelia Huck } else { 31079cd0c80SCornelia Huck if (info) { 31179cd0c80SCornelia Huck /* virtio-1 allows changing the ring size. */ 31279cd0c80SCornelia Huck if (virtio_queue_get_num(vdev, index) < num) { 31379cd0c80SCornelia Huck /* Fail if we exceed the maximum number. */ 314a5cf2bb4SCornelia Huck return -EINVAL; 315a5cf2bb4SCornelia Huck } 31679cd0c80SCornelia Huck virtio_queue_set_num(vdev, index, num); 31779cd0c80SCornelia Huck } else if (virtio_queue_get_num(vdev, index) > num) { 31879cd0c80SCornelia Huck /* Fail if we don't have a big enough queue. */ 31979cd0c80SCornelia Huck return -EINVAL; 32079cd0c80SCornelia Huck } 32179cd0c80SCornelia Huck /* We ignore possible increased num for legacy for compatibility. */ 322f24a6840SPaolo Bonzini virtio_queue_set_vector(vdev, index, index); 323a5cf2bb4SCornelia Huck } 324a5cf2bb4SCornelia Huck /* tell notify handler in case of config change */ 3258dfbaa6aSJason Wang vdev->config_vector = VIRTIO_CCW_QUEUE_MAX; 326a5cf2bb4SCornelia Huck return 0; 327a5cf2bb4SCornelia Huck } 328a5cf2bb4SCornelia Huck 329fa8b0ca5SCornelia Huck static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev) 330fa8b0ca5SCornelia Huck { 331fa8b0ca5SCornelia Huck virtio_ccw_stop_ioeventfd(dev); 332fa8b0ca5SCornelia Huck virtio_reset(vdev); 333fa8b0ca5SCornelia Huck if (dev->indicators) { 334fa8b0ca5SCornelia Huck release_indicator(&dev->routes.adapter, dev->indicators); 335fa8b0ca5SCornelia Huck dev->indicators = NULL; 336fa8b0ca5SCornelia Huck } 337fa8b0ca5SCornelia Huck if (dev->indicators2) { 338fa8b0ca5SCornelia Huck release_indicator(&dev->routes.adapter, dev->indicators2); 339fa8b0ca5SCornelia Huck dev->indicators2 = NULL; 340fa8b0ca5SCornelia Huck } 341fa8b0ca5SCornelia Huck if (dev->summary_indicator) { 342fa8b0ca5SCornelia Huck release_indicator(&dev->routes.adapter, dev->summary_indicator); 343fa8b0ca5SCornelia Huck dev->summary_indicator = NULL; 344fa8b0ca5SCornelia Huck } 345fa8b0ca5SCornelia Huck dev->sch->thinint_active = false; 346fa8b0ca5SCornelia Huck } 347fa8b0ca5SCornelia Huck 3480db87e0dSCornelia Huck static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len, 3490db87e0dSCornelia Huck bool is_legacy) 350a5cf2bb4SCornelia Huck { 351a5cf2bb4SCornelia Huck int ret; 352a5cf2bb4SCornelia Huck VqInfoBlock info; 3530db87e0dSCornelia Huck VqInfoBlockLegacy linfo; 3540db87e0dSCornelia Huck size_t info_len = is_legacy ? sizeof(linfo) : sizeof(info); 3550db87e0dSCornelia Huck 3560db87e0dSCornelia Huck if (check_len) { 3570db87e0dSCornelia Huck if (ccw.count != info_len) { 3580db87e0dSCornelia Huck return -EINVAL; 3590db87e0dSCornelia Huck } 3600db87e0dSCornelia Huck } else if (ccw.count < info_len) { 3610db87e0dSCornelia Huck /* Can't execute command. */ 3620db87e0dSCornelia Huck return -EINVAL; 3630db87e0dSCornelia Huck } 3640db87e0dSCornelia Huck if (!ccw.cda) { 3650db87e0dSCornelia Huck return -EFAULT; 3660db87e0dSCornelia Huck } 3670db87e0dSCornelia Huck if (is_legacy) { 3680db87e0dSCornelia Huck linfo.queue = address_space_ldq_be(&address_space_memory, ccw.cda, 3690db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 3700db87e0dSCornelia Huck linfo.align = address_space_ldl_be(&address_space_memory, 3710db87e0dSCornelia Huck ccw.cda + sizeof(linfo.queue), 3720db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, 3730db87e0dSCornelia Huck NULL); 3740db87e0dSCornelia Huck linfo.index = address_space_lduw_be(&address_space_memory, 3750db87e0dSCornelia Huck ccw.cda + sizeof(linfo.queue) 3760db87e0dSCornelia Huck + sizeof(linfo.align), 3770db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, 3780db87e0dSCornelia Huck NULL); 3790db87e0dSCornelia Huck linfo.num = address_space_lduw_be(&address_space_memory, 3800db87e0dSCornelia Huck ccw.cda + sizeof(linfo.queue) 3810db87e0dSCornelia Huck + sizeof(linfo.align) 3820db87e0dSCornelia Huck + sizeof(linfo.index), 3830db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, 3840db87e0dSCornelia Huck NULL); 3850db87e0dSCornelia Huck ret = virtio_ccw_set_vqs(sch, NULL, &linfo); 3860db87e0dSCornelia Huck } else { 3870db87e0dSCornelia Huck info.desc = address_space_ldq_be(&address_space_memory, ccw.cda, 3880db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 3890db87e0dSCornelia Huck info.index = address_space_lduw_be(&address_space_memory, 3900db87e0dSCornelia Huck ccw.cda + sizeof(info.desc) 3910db87e0dSCornelia Huck + sizeof(info.res0), 3920db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 3930db87e0dSCornelia Huck info.num = address_space_lduw_be(&address_space_memory, 3940db87e0dSCornelia Huck ccw.cda + sizeof(info.desc) 3950db87e0dSCornelia Huck + sizeof(info.res0) 3960db87e0dSCornelia Huck + sizeof(info.index), 3970db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 3980db87e0dSCornelia Huck info.avail = address_space_ldq_be(&address_space_memory, 3990db87e0dSCornelia Huck ccw.cda + sizeof(info.desc) 4000db87e0dSCornelia Huck + sizeof(info.res0) 4010db87e0dSCornelia Huck + sizeof(info.index) 4020db87e0dSCornelia Huck + sizeof(info.num), 4030db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 4040db87e0dSCornelia Huck info.used = address_space_ldq_be(&address_space_memory, 4050db87e0dSCornelia Huck ccw.cda + sizeof(info.desc) 4060db87e0dSCornelia Huck + sizeof(info.res0) 4070db87e0dSCornelia Huck + sizeof(info.index) 4080db87e0dSCornelia Huck + sizeof(info.num) 4090db87e0dSCornelia Huck + sizeof(info.avail), 4100db87e0dSCornelia Huck MEMTXATTRS_UNSPECIFIED, NULL); 4110db87e0dSCornelia Huck ret = virtio_ccw_set_vqs(sch, &info, NULL); 4120db87e0dSCornelia Huck } 4130db87e0dSCornelia Huck sch->curr_status.scsw.count = 0; 4140db87e0dSCornelia Huck return ret; 4150db87e0dSCornelia Huck } 4160db87e0dSCornelia Huck 4170db87e0dSCornelia Huck static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw) 4180db87e0dSCornelia Huck { 4190db87e0dSCornelia Huck int ret; 420c42767f2SThomas Huth VirtioRevInfo revinfo; 421a5cf2bb4SCornelia Huck uint8_t status; 422a5cf2bb4SCornelia Huck VirtioFeatDesc features; 423a5cf2bb4SCornelia Huck void *config; 424a5cf2bb4SCornelia Huck hwaddr indicators; 425a5cf2bb4SCornelia Huck VqConfigBlock vq_config; 426a5cf2bb4SCornelia Huck VirtioCcwDevice *dev = sch->driver_data; 427f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_ccw_get_vdev(sch); 428a5cf2bb4SCornelia Huck bool check_len; 429a5cf2bb4SCornelia Huck int len; 430a5cf2bb4SCornelia Huck hwaddr hw_len; 4317e749462SCornelia Huck VirtioThinintInfo *thinint; 432a5cf2bb4SCornelia Huck 433a5cf2bb4SCornelia Huck if (!dev) { 434a5cf2bb4SCornelia Huck return -EINVAL; 435a5cf2bb4SCornelia Huck } 436a5cf2bb4SCornelia Huck 437a5cf2bb4SCornelia Huck trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid, 438a5cf2bb4SCornelia Huck ccw.cmd_code); 439a5cf2bb4SCornelia Huck check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); 440a5cf2bb4SCornelia Huck 441a5cf2bb4SCornelia Huck /* Look at the command. */ 442a5cf2bb4SCornelia Huck switch (ccw.cmd_code) { 443a5cf2bb4SCornelia Huck case CCW_CMD_SET_VQ: 4440db87e0dSCornelia Huck ret = virtio_ccw_handle_set_vq(sch, ccw, check_len, dev->revision < 1); 445a5cf2bb4SCornelia Huck break; 446a5cf2bb4SCornelia Huck case CCW_CMD_VDEV_RESET: 447fa8b0ca5SCornelia Huck virtio_ccw_reset_virtio(dev, vdev); 448a5cf2bb4SCornelia Huck ret = 0; 449a5cf2bb4SCornelia Huck break; 450a5cf2bb4SCornelia Huck case CCW_CMD_READ_FEAT: 451a5cf2bb4SCornelia Huck if (check_len) { 452a5cf2bb4SCornelia Huck if (ccw.count != sizeof(features)) { 453a5cf2bb4SCornelia Huck ret = -EINVAL; 454a5cf2bb4SCornelia Huck break; 455a5cf2bb4SCornelia Huck } 456a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(features)) { 457a5cf2bb4SCornelia Huck /* Can't execute command. */ 458a5cf2bb4SCornelia Huck ret = -EINVAL; 459a5cf2bb4SCornelia Huck break; 460a5cf2bb4SCornelia Huck } 461a5cf2bb4SCornelia Huck if (!ccw.cda) { 462a5cf2bb4SCornelia Huck ret = -EFAULT; 463a5cf2bb4SCornelia Huck } else { 46442874d3aSPeter Maydell features.index = address_space_ldub(&address_space_memory, 46542874d3aSPeter Maydell ccw.cda 46642874d3aSPeter Maydell + sizeof(features.features), 46742874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 46842874d3aSPeter Maydell NULL); 4696b8f1020SCornelia Huck if (features.index == 0) { 470c42767f2SThomas Huth features.features = (uint32_t)vdev->host_features; 471*b4f8f9dfSCornelia Huck } else if ((features.index == 1) && (dev->revision >= 1)) { 472c42767f2SThomas Huth /* 473*b4f8f9dfSCornelia Huck * Only offer feature bits beyond 31 if the guest has 474*b4f8f9dfSCornelia Huck * negotiated at least revision 1. 475c42767f2SThomas Huth */ 476*b4f8f9dfSCornelia Huck features.features = (uint32_t)(vdev->host_features >> 32); 477a5cf2bb4SCornelia Huck } else { 478a5cf2bb4SCornelia Huck /* Return zeroes if the guest supports more feature bits. */ 479a5cf2bb4SCornelia Huck features.features = 0; 480a5cf2bb4SCornelia Huck } 48142874d3aSPeter Maydell address_space_stl_le(&address_space_memory, ccw.cda, 48242874d3aSPeter Maydell features.features, MEMTXATTRS_UNSPECIFIED, 48342874d3aSPeter Maydell NULL); 484a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(features); 485a5cf2bb4SCornelia Huck ret = 0; 486a5cf2bb4SCornelia Huck } 487a5cf2bb4SCornelia Huck break; 488a5cf2bb4SCornelia Huck case CCW_CMD_WRITE_FEAT: 489a5cf2bb4SCornelia Huck if (check_len) { 490a5cf2bb4SCornelia Huck if (ccw.count != sizeof(features)) { 491a5cf2bb4SCornelia Huck ret = -EINVAL; 492a5cf2bb4SCornelia Huck break; 493a5cf2bb4SCornelia Huck } 494a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(features)) { 495a5cf2bb4SCornelia Huck /* Can't execute command. */ 496a5cf2bb4SCornelia Huck ret = -EINVAL; 497a5cf2bb4SCornelia Huck break; 498a5cf2bb4SCornelia Huck } 499a5cf2bb4SCornelia Huck if (!ccw.cda) { 500a5cf2bb4SCornelia Huck ret = -EFAULT; 501a5cf2bb4SCornelia Huck } else { 50242874d3aSPeter Maydell features.index = address_space_ldub(&address_space_memory, 50342874d3aSPeter Maydell ccw.cda 50442874d3aSPeter Maydell + sizeof(features.features), 50542874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 50642874d3aSPeter Maydell NULL); 50742874d3aSPeter Maydell features.features = address_space_ldl_le(&address_space_memory, 50842874d3aSPeter Maydell ccw.cda, 50942874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 51042874d3aSPeter Maydell NULL); 5116b8f1020SCornelia Huck if (features.index == 0) { 512c42767f2SThomas Huth virtio_set_features(vdev, 513c42767f2SThomas Huth (vdev->guest_features & 0xffffffff00000000ULL) | 514c42767f2SThomas Huth features.features); 515*b4f8f9dfSCornelia Huck } else if ((features.index == 1) && (dev->revision >= 1)) { 516c42767f2SThomas Huth /* 517*b4f8f9dfSCornelia Huck * If the guest did not negotiate at least revision 1, 518*b4f8f9dfSCornelia Huck * we did not offer it any feature bits beyond 31. Such a 519*b4f8f9dfSCornelia Huck * guest passing us any bit here is therefore buggy. 520c42767f2SThomas Huth */ 521c42767f2SThomas Huth virtio_set_features(vdev, 522c42767f2SThomas Huth (vdev->guest_features & 0x00000000ffffffffULL) | 523c42767f2SThomas Huth ((uint64_t)features.features << 32)); 524a5cf2bb4SCornelia Huck } else { 525a5cf2bb4SCornelia Huck /* 526a5cf2bb4SCornelia Huck * If the guest supports more feature bits, assert that it 527a5cf2bb4SCornelia Huck * passes us zeroes for those we don't support. 528a5cf2bb4SCornelia Huck */ 529a5cf2bb4SCornelia Huck if (features.features) { 530a5cf2bb4SCornelia Huck fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n", 531a5cf2bb4SCornelia Huck features.index, features.features); 532a5cf2bb4SCornelia Huck /* XXX: do a unit check here? */ 533a5cf2bb4SCornelia Huck } 534a5cf2bb4SCornelia Huck } 535a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(features); 536a5cf2bb4SCornelia Huck ret = 0; 537a5cf2bb4SCornelia Huck } 538a5cf2bb4SCornelia Huck break; 539a5cf2bb4SCornelia Huck case CCW_CMD_READ_CONF: 540a5cf2bb4SCornelia Huck if (check_len) { 541f24a6840SPaolo Bonzini if (ccw.count > vdev->config_len) { 542a5cf2bb4SCornelia Huck ret = -EINVAL; 543a5cf2bb4SCornelia Huck break; 544a5cf2bb4SCornelia Huck } 545a5cf2bb4SCornelia Huck } 546f24a6840SPaolo Bonzini len = MIN(ccw.count, vdev->config_len); 547a5cf2bb4SCornelia Huck if (!ccw.cda) { 548a5cf2bb4SCornelia Huck ret = -EFAULT; 549a5cf2bb4SCornelia Huck } else { 550f24a6840SPaolo Bonzini virtio_bus_get_vdev_config(&dev->bus, vdev->config); 551a5cf2bb4SCornelia Huck /* XXX config space endianness */ 552f24a6840SPaolo Bonzini cpu_physical_memory_write(ccw.cda, vdev->config, len); 553a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - len; 554a5cf2bb4SCornelia Huck ret = 0; 555a5cf2bb4SCornelia Huck } 556a5cf2bb4SCornelia Huck break; 557a5cf2bb4SCornelia Huck case CCW_CMD_WRITE_CONF: 558a5cf2bb4SCornelia Huck if (check_len) { 559f24a6840SPaolo Bonzini if (ccw.count > vdev->config_len) { 560a5cf2bb4SCornelia Huck ret = -EINVAL; 561a5cf2bb4SCornelia Huck break; 562a5cf2bb4SCornelia Huck } 563a5cf2bb4SCornelia Huck } 564f24a6840SPaolo Bonzini len = MIN(ccw.count, vdev->config_len); 565a5cf2bb4SCornelia Huck hw_len = len; 566a5cf2bb4SCornelia Huck if (!ccw.cda) { 567a5cf2bb4SCornelia Huck ret = -EFAULT; 568a5cf2bb4SCornelia Huck } else { 569a5cf2bb4SCornelia Huck config = cpu_physical_memory_map(ccw.cda, &hw_len, 0); 570a5cf2bb4SCornelia Huck if (!config) { 571a5cf2bb4SCornelia Huck ret = -EFAULT; 572a5cf2bb4SCornelia Huck } else { 573a5cf2bb4SCornelia Huck len = hw_len; 574a5cf2bb4SCornelia Huck /* XXX config space endianness */ 575f24a6840SPaolo Bonzini memcpy(vdev->config, config, len); 576a5cf2bb4SCornelia Huck cpu_physical_memory_unmap(config, hw_len, 0, hw_len); 577f24a6840SPaolo Bonzini virtio_bus_set_vdev_config(&dev->bus, vdev->config); 578a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - len; 579a5cf2bb4SCornelia Huck ret = 0; 580a5cf2bb4SCornelia Huck } 581a5cf2bb4SCornelia Huck } 582a5cf2bb4SCornelia Huck break; 583a5cf2bb4SCornelia Huck case CCW_CMD_WRITE_STATUS: 584a5cf2bb4SCornelia Huck if (check_len) { 585a5cf2bb4SCornelia Huck if (ccw.count != sizeof(status)) { 586a5cf2bb4SCornelia Huck ret = -EINVAL; 587a5cf2bb4SCornelia Huck break; 588a5cf2bb4SCornelia Huck } 589a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(status)) { 590a5cf2bb4SCornelia Huck /* Can't execute command. */ 591a5cf2bb4SCornelia Huck ret = -EINVAL; 592a5cf2bb4SCornelia Huck break; 593a5cf2bb4SCornelia Huck } 594a5cf2bb4SCornelia Huck if (!ccw.cda) { 595a5cf2bb4SCornelia Huck ret = -EFAULT; 596a5cf2bb4SCornelia Huck } else { 59742874d3aSPeter Maydell status = address_space_ldub(&address_space_memory, ccw.cda, 59842874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, NULL); 599b4436a0bSCornelia Huck if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) { 600b4436a0bSCornelia Huck virtio_ccw_stop_ioeventfd(dev); 601b4436a0bSCornelia Huck } 6020b352fd6SCornelia Huck if (virtio_set_status(vdev, status) == 0) { 603f24a6840SPaolo Bonzini if (vdev->status == 0) { 604fa8b0ca5SCornelia Huck virtio_ccw_reset_virtio(dev, vdev); 605a5cf2bb4SCornelia Huck } 606b4436a0bSCornelia Huck if (status & VIRTIO_CONFIG_S_DRIVER_OK) { 607b4436a0bSCornelia Huck virtio_ccw_start_ioeventfd(dev); 608b4436a0bSCornelia Huck } 609a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(status); 610a5cf2bb4SCornelia Huck ret = 0; 6110b352fd6SCornelia Huck } else { 6120b352fd6SCornelia Huck /* Trigger a command reject. */ 6130b352fd6SCornelia Huck ret = -ENOSYS; 6140b352fd6SCornelia Huck } 615a5cf2bb4SCornelia Huck } 616a5cf2bb4SCornelia Huck break; 617a5cf2bb4SCornelia Huck case CCW_CMD_SET_IND: 618a5cf2bb4SCornelia Huck if (check_len) { 619a5cf2bb4SCornelia Huck if (ccw.count != sizeof(indicators)) { 620a5cf2bb4SCornelia Huck ret = -EINVAL; 621a5cf2bb4SCornelia Huck break; 622a5cf2bb4SCornelia Huck } 623a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(indicators)) { 624a5cf2bb4SCornelia Huck /* Can't execute command. */ 625a5cf2bb4SCornelia Huck ret = -EINVAL; 626a5cf2bb4SCornelia Huck break; 627a5cf2bb4SCornelia Huck } 6287e749462SCornelia Huck if (sch->thinint_active) { 6297e749462SCornelia Huck /* Trigger a command reject. */ 6307e749462SCornelia Huck ret = -ENOSYS; 6317e749462SCornelia Huck break; 6327e749462SCornelia Huck } 633d1db1fa8SCornelia Huck if (!ccw.cda) { 634a5cf2bb4SCornelia Huck ret = -EFAULT; 635a5cf2bb4SCornelia Huck } else { 63642874d3aSPeter Maydell indicators = address_space_ldq_be(&address_space_memory, ccw.cda, 63742874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, NULL); 6387bca3892SCornelia Huck dev->indicators = get_indicator(indicators, sizeof(uint64_t)); 639a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 640a5cf2bb4SCornelia Huck ret = 0; 641a5cf2bb4SCornelia Huck } 642a5cf2bb4SCornelia Huck break; 643a5cf2bb4SCornelia Huck case CCW_CMD_SET_CONF_IND: 644a5cf2bb4SCornelia Huck if (check_len) { 645a5cf2bb4SCornelia Huck if (ccw.count != sizeof(indicators)) { 646a5cf2bb4SCornelia Huck ret = -EINVAL; 647a5cf2bb4SCornelia Huck break; 648a5cf2bb4SCornelia Huck } 649a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(indicators)) { 650a5cf2bb4SCornelia Huck /* Can't execute command. */ 651a5cf2bb4SCornelia Huck ret = -EINVAL; 652a5cf2bb4SCornelia Huck break; 653a5cf2bb4SCornelia Huck } 654d1db1fa8SCornelia Huck if (!ccw.cda) { 655a5cf2bb4SCornelia Huck ret = -EFAULT; 656a5cf2bb4SCornelia Huck } else { 65742874d3aSPeter Maydell indicators = address_space_ldq_be(&address_space_memory, ccw.cda, 65842874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, NULL); 6597bca3892SCornelia Huck dev->indicators2 = get_indicator(indicators, sizeof(uint64_t)); 660a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(indicators); 661a5cf2bb4SCornelia Huck ret = 0; 662a5cf2bb4SCornelia Huck } 663a5cf2bb4SCornelia Huck break; 664a5cf2bb4SCornelia Huck case CCW_CMD_READ_VQ_CONF: 665a5cf2bb4SCornelia Huck if (check_len) { 666a5cf2bb4SCornelia Huck if (ccw.count != sizeof(vq_config)) { 667a5cf2bb4SCornelia Huck ret = -EINVAL; 668a5cf2bb4SCornelia Huck break; 669a5cf2bb4SCornelia Huck } 670a5cf2bb4SCornelia Huck } else if (ccw.count < sizeof(vq_config)) { 671a5cf2bb4SCornelia Huck /* Can't execute command. */ 672a5cf2bb4SCornelia Huck ret = -EINVAL; 673a5cf2bb4SCornelia Huck break; 674a5cf2bb4SCornelia Huck } 675a5cf2bb4SCornelia Huck if (!ccw.cda) { 676a5cf2bb4SCornelia Huck ret = -EFAULT; 677a5cf2bb4SCornelia Huck } else { 67842874d3aSPeter Maydell vq_config.index = address_space_lduw_be(&address_space_memory, 67942874d3aSPeter Maydell ccw.cda, 68042874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 68142874d3aSPeter Maydell NULL); 6828dfbaa6aSJason Wang if (vq_config.index >= VIRTIO_CCW_QUEUE_MAX) { 683d03a3630SCornelia Huck ret = -EINVAL; 684d03a3630SCornelia Huck break; 685d03a3630SCornelia Huck } 686f24a6840SPaolo Bonzini vq_config.num_max = virtio_queue_get_num(vdev, 687a5cf2bb4SCornelia Huck vq_config.index); 68842874d3aSPeter Maydell address_space_stw_be(&address_space_memory, 68942874d3aSPeter Maydell ccw.cda + sizeof(vq_config.index), 69042874d3aSPeter Maydell vq_config.num_max, 69142874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 69242874d3aSPeter Maydell NULL); 693a5cf2bb4SCornelia Huck sch->curr_status.scsw.count = ccw.count - sizeof(vq_config); 694a5cf2bb4SCornelia Huck ret = 0; 695a5cf2bb4SCornelia Huck } 696a5cf2bb4SCornelia Huck break; 6977e749462SCornelia Huck case CCW_CMD_SET_IND_ADAPTER: 6987e749462SCornelia Huck if (check_len) { 6997e749462SCornelia Huck if (ccw.count != sizeof(*thinint)) { 7007e749462SCornelia Huck ret = -EINVAL; 7017e749462SCornelia Huck break; 7027e749462SCornelia Huck } 7037e749462SCornelia Huck } else if (ccw.count < sizeof(*thinint)) { 7047e749462SCornelia Huck /* Can't execute command. */ 7057e749462SCornelia Huck ret = -EINVAL; 7067e749462SCornelia Huck break; 7077e749462SCornelia Huck } 7087e749462SCornelia Huck len = sizeof(*thinint); 7097e749462SCornelia Huck hw_len = len; 7107e749462SCornelia Huck if (!ccw.cda) { 7117e749462SCornelia Huck ret = -EFAULT; 7127e749462SCornelia Huck } else if (dev->indicators && !sch->thinint_active) { 7137e749462SCornelia Huck /* Trigger a command reject. */ 7147e749462SCornelia Huck ret = -ENOSYS; 7157e749462SCornelia Huck } else { 7167e749462SCornelia Huck thinint = cpu_physical_memory_map(ccw.cda, &hw_len, 0); 7177e749462SCornelia Huck if (!thinint) { 7187e749462SCornelia Huck ret = -EFAULT; 7197e749462SCornelia Huck } else { 7207d45285fSCornelia Huck uint64_t ind_bit = ldq_be_p(&thinint->ind_bit); 7217d45285fSCornelia Huck 7227e749462SCornelia Huck len = hw_len; 7237bca3892SCornelia Huck dev->summary_indicator = 7247d45285fSCornelia Huck get_indicator(ldq_be_p(&thinint->summary_indicator), 7257d45285fSCornelia Huck sizeof(uint8_t)); 7267d45285fSCornelia Huck dev->indicators = 7277d45285fSCornelia Huck get_indicator(ldq_be_p(&thinint->device_indicator), 7287d45285fSCornelia Huck ind_bit / 8 + 1); 7297e749462SCornelia Huck dev->thinint_isc = thinint->isc; 7307d45285fSCornelia Huck dev->routes.adapter.ind_offset = ind_bit; 731d426d9fbSCornelia Huck dev->routes.adapter.summary_offset = 7; 7327e749462SCornelia Huck cpu_physical_memory_unmap(thinint, hw_len, 0, hw_len); 73303cf077aSCornelia Huck ret = css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, 73403cf077aSCornelia Huck dev->thinint_isc, true, false, 735d426d9fbSCornelia Huck &dev->routes.adapter.adapter_id); 73603cf077aSCornelia Huck assert(ret == 0); 7377bca3892SCornelia Huck sch->thinint_active = ((dev->indicators != NULL) && 7387bca3892SCornelia Huck (dev->summary_indicator != NULL)); 7397e749462SCornelia Huck sch->curr_status.scsw.count = ccw.count - len; 7407e749462SCornelia Huck ret = 0; 7417e749462SCornelia Huck } 7427e749462SCornelia Huck } 7437e749462SCornelia Huck break; 744c42767f2SThomas Huth case CCW_CMD_SET_VIRTIO_REV: 745c42767f2SThomas Huth len = sizeof(revinfo); 746c42767f2SThomas Huth if (ccw.count < len) { 747c42767f2SThomas Huth ret = -EINVAL; 748c42767f2SThomas Huth break; 749c42767f2SThomas Huth } 750c42767f2SThomas Huth if (!ccw.cda) { 751c42767f2SThomas Huth ret = -EFAULT; 752c42767f2SThomas Huth break; 753c42767f2SThomas Huth } 754c42767f2SThomas Huth revinfo.revision = 755c42767f2SThomas Huth address_space_lduw_be(&address_space_memory, ccw.cda, 756c42767f2SThomas Huth MEMTXATTRS_UNSPECIFIED, NULL); 757c42767f2SThomas Huth revinfo.length = 758c42767f2SThomas Huth address_space_lduw_be(&address_space_memory, 759c42767f2SThomas Huth ccw.cda + sizeof(revinfo.revision), 760c42767f2SThomas Huth MEMTXATTRS_UNSPECIFIED, NULL); 761c42767f2SThomas Huth if (ccw.count < len + revinfo.length || 762c42767f2SThomas Huth (check_len && ccw.count > len + revinfo.length)) { 763c42767f2SThomas Huth ret = -EINVAL; 764c42767f2SThomas Huth break; 765c42767f2SThomas Huth } 766c42767f2SThomas Huth /* 767c42767f2SThomas Huth * Once we start to support revisions with additional data, we'll 768c42767f2SThomas Huth * need to fetch it here. Nothing to do for now, though. 769c42767f2SThomas Huth */ 770c42767f2SThomas Huth if (dev->revision >= 0 || 771c42767f2SThomas Huth revinfo.revision > virtio_ccw_rev_max(vdev)) { 772c42767f2SThomas Huth ret = -ENOSYS; 773c42767f2SThomas Huth break; 774c42767f2SThomas Huth } 775c42767f2SThomas Huth ret = 0; 776c42767f2SThomas Huth dev->revision = revinfo.revision; 777c42767f2SThomas Huth break; 778a5cf2bb4SCornelia Huck default: 7798d034a6fSCornelia Huck ret = -ENOSYS; 780a5cf2bb4SCornelia Huck break; 781a5cf2bb4SCornelia Huck } 782a5cf2bb4SCornelia Huck return ret; 783a5cf2bb4SCornelia Huck } 784a5cf2bb4SCornelia Huck 785c42767f2SThomas Huth static void virtio_sch_disable_cb(SubchDev *sch) 786c42767f2SThomas Huth { 787c42767f2SThomas Huth VirtioCcwDevice *dev = sch->driver_data; 788c42767f2SThomas Huth 789c42767f2SThomas Huth dev->revision = -1; 790c42767f2SThomas Huth } 791c42767f2SThomas Huth 7921fa75523SCornelia Huck static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp) 793a5cf2bb4SCornelia Huck { 794a5cf2bb4SCornelia Huck unsigned int cssid = 0; 795a5cf2bb4SCornelia Huck unsigned int ssid = 0; 796a5cf2bb4SCornelia Huck unsigned int schid; 797a5cf2bb4SCornelia Huck unsigned int devno; 798a5cf2bb4SCornelia Huck bool have_devno = false; 799a5cf2bb4SCornelia Huck bool found = false; 800a5cf2bb4SCornelia Huck SubchDev *sch; 801a5cf2bb4SCornelia Huck int num; 8021fa75523SCornelia Huck Error *err = NULL; 8031fa75523SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 804a5cf2bb4SCornelia Huck 805a5cf2bb4SCornelia Huck sch = g_malloc0(sizeof(SubchDev)); 806a5cf2bb4SCornelia Huck 807a5cf2bb4SCornelia Huck sch->driver_data = dev; 808a5cf2bb4SCornelia Huck dev->sch = sch; 809a5cf2bb4SCornelia Huck 8107bca3892SCornelia Huck dev->indicators = NULL; 811a5cf2bb4SCornelia Huck 812a5cf2bb4SCornelia Huck /* Initialize subchannel structure. */ 813a5cf2bb4SCornelia Huck sch->channel_prog = 0x0; 814a5cf2bb4SCornelia Huck sch->last_cmd_valid = false; 8157e749462SCornelia Huck sch->thinint_active = false; 816a5cf2bb4SCornelia Huck /* 817a5cf2bb4SCornelia Huck * Use a device number if provided. Otherwise, fall back to subchannel 818a5cf2bb4SCornelia Huck * number. 819a5cf2bb4SCornelia Huck */ 820a5cf2bb4SCornelia Huck if (dev->bus_id) { 821a5cf2bb4SCornelia Huck num = sscanf(dev->bus_id, "%x.%x.%04x", &cssid, &ssid, &devno); 822a5cf2bb4SCornelia Huck if (num == 3) { 823a5cf2bb4SCornelia Huck if ((cssid > MAX_CSSID) || (ssid > MAX_SSID)) { 8245e5ced38SMarkus Armbruster error_setg(errp, "Invalid cssid or ssid: cssid %x, ssid %x", 825a5cf2bb4SCornelia Huck cssid, ssid); 826a5cf2bb4SCornelia Huck goto out_err; 827a5cf2bb4SCornelia Huck } 828a5cf2bb4SCornelia Huck /* Enforce use of virtual cssid. */ 829a5cf2bb4SCornelia Huck if (cssid != VIRTUAL_CSSID) { 8305e5ced38SMarkus Armbruster error_setg(errp, "cssid %x not valid for virtio devices", 8315e5ced38SMarkus Armbruster cssid); 832a5cf2bb4SCornelia Huck goto out_err; 833a5cf2bb4SCornelia Huck } 834a5cf2bb4SCornelia Huck if (css_devno_used(cssid, ssid, devno)) { 8355e5ced38SMarkus Armbruster error_setg(errp, "Device %x.%x.%04x already exists", 8365e5ced38SMarkus Armbruster cssid, ssid, devno); 837a5cf2bb4SCornelia Huck goto out_err; 838a5cf2bb4SCornelia Huck } 839a5cf2bb4SCornelia Huck sch->cssid = cssid; 840a5cf2bb4SCornelia Huck sch->ssid = ssid; 841a5cf2bb4SCornelia Huck sch->devno = devno; 842a5cf2bb4SCornelia Huck have_devno = true; 843a5cf2bb4SCornelia Huck } else { 8445e5ced38SMarkus Armbruster error_setg(errp, "Malformed devno parameter '%s'", dev->bus_id); 845a5cf2bb4SCornelia Huck goto out_err; 846a5cf2bb4SCornelia Huck } 847a5cf2bb4SCornelia Huck } 848a5cf2bb4SCornelia Huck 849a5cf2bb4SCornelia Huck /* Find the next free id. */ 850a5cf2bb4SCornelia Huck if (have_devno) { 851a5cf2bb4SCornelia Huck for (schid = 0; schid <= MAX_SCHID; schid++) { 852a5cf2bb4SCornelia Huck if (!css_find_subch(1, cssid, ssid, schid)) { 853a5cf2bb4SCornelia Huck sch->schid = schid; 854a5cf2bb4SCornelia Huck css_subch_assign(cssid, ssid, schid, devno, sch); 855a5cf2bb4SCornelia Huck found = true; 856a5cf2bb4SCornelia Huck break; 857a5cf2bb4SCornelia Huck } 858a5cf2bb4SCornelia Huck } 859a5cf2bb4SCornelia Huck if (!found) { 8605e5ced38SMarkus Armbruster error_setg(errp, "No free subchannel found for %x.%x.%04x", 8615e5ced38SMarkus Armbruster cssid, ssid, devno); 862a5cf2bb4SCornelia Huck goto out_err; 863a5cf2bb4SCornelia Huck } 864a5cf2bb4SCornelia Huck trace_virtio_ccw_new_device(cssid, ssid, schid, devno, 865a5cf2bb4SCornelia Huck "user-configured"); 866a5cf2bb4SCornelia Huck } else { 867a5cf2bb4SCornelia Huck cssid = VIRTUAL_CSSID; 868a5cf2bb4SCornelia Huck for (ssid = 0; ssid <= MAX_SSID; ssid++) { 869a5cf2bb4SCornelia Huck for (schid = 0; schid <= MAX_SCHID; schid++) { 870a5cf2bb4SCornelia Huck if (!css_find_subch(1, cssid, ssid, schid)) { 871a5cf2bb4SCornelia Huck sch->cssid = cssid; 872a5cf2bb4SCornelia Huck sch->ssid = ssid; 873a5cf2bb4SCornelia Huck sch->schid = schid; 874a5cf2bb4SCornelia Huck devno = schid; 875a5cf2bb4SCornelia Huck /* 876a5cf2bb4SCornelia Huck * If the devno is already taken, look further in this 877a5cf2bb4SCornelia Huck * subchannel set. 878a5cf2bb4SCornelia Huck */ 879a5cf2bb4SCornelia Huck while (css_devno_used(cssid, ssid, devno)) { 880a5cf2bb4SCornelia Huck if (devno == MAX_SCHID) { 881a5cf2bb4SCornelia Huck devno = 0; 882a5cf2bb4SCornelia Huck } else if (devno == schid - 1) { 8835e5ced38SMarkus Armbruster error_setg(errp, "No free devno found"); 884a5cf2bb4SCornelia Huck goto out_err; 885a5cf2bb4SCornelia Huck } else { 886a5cf2bb4SCornelia Huck devno++; 887a5cf2bb4SCornelia Huck } 888a5cf2bb4SCornelia Huck } 889a5cf2bb4SCornelia Huck sch->devno = devno; 890a5cf2bb4SCornelia Huck css_subch_assign(cssid, ssid, schid, devno, sch); 891a5cf2bb4SCornelia Huck found = true; 892a5cf2bb4SCornelia Huck break; 893a5cf2bb4SCornelia Huck } 894a5cf2bb4SCornelia Huck } 895a5cf2bb4SCornelia Huck if (found) { 896a5cf2bb4SCornelia Huck break; 897a5cf2bb4SCornelia Huck } 898a5cf2bb4SCornelia Huck } 899a5cf2bb4SCornelia Huck if (!found) { 9005e5ced38SMarkus Armbruster error_setg(errp, "Virtual channel subsystem is full!"); 901a5cf2bb4SCornelia Huck goto out_err; 902a5cf2bb4SCornelia Huck } 903a5cf2bb4SCornelia Huck trace_virtio_ccw_new_device(cssid, ssid, schid, devno, 904a5cf2bb4SCornelia Huck "auto-configured"); 905a5cf2bb4SCornelia Huck } 906a5cf2bb4SCornelia Huck 907a5cf2bb4SCornelia Huck /* Build initial schib. */ 908a5cf2bb4SCornelia Huck css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE); 909a5cf2bb4SCornelia Huck 910a5cf2bb4SCornelia Huck sch->ccw_cb = virtio_ccw_cb; 911c42767f2SThomas Huth sch->disable_cb = virtio_sch_disable_cb; 912a5cf2bb4SCornelia Huck 913a5cf2bb4SCornelia Huck /* Build senseid data. */ 914a5cf2bb4SCornelia Huck memset(&sch->id, 0, sizeof(SenseId)); 915a5cf2bb4SCornelia Huck sch->id.reserved = 0xff; 916a5cf2bb4SCornelia Huck sch->id.cu_type = VIRTIO_CCW_CU_TYPE; 9171fa75523SCornelia Huck 918c42767f2SThomas Huth dev->revision = -1; 919c42767f2SThomas Huth 9201fa75523SCornelia Huck if (k->realize) { 9211fa75523SCornelia Huck k->realize(dev, &err); 9221fa75523SCornelia Huck } 9231fa75523SCornelia Huck if (err) { 9241fa75523SCornelia Huck error_propagate(errp, err); 9251fa75523SCornelia Huck css_subch_assign(cssid, ssid, schid, devno, NULL); 9261fa75523SCornelia Huck goto out_err; 9271fa75523SCornelia Huck } 9281fa75523SCornelia Huck 9295e5ced38SMarkus Armbruster return; 930a5cf2bb4SCornelia Huck 931a5cf2bb4SCornelia Huck out_err: 932a5cf2bb4SCornelia Huck dev->sch = NULL; 933a5cf2bb4SCornelia Huck g_free(sch); 934a5cf2bb4SCornelia Huck } 935a5cf2bb4SCornelia Huck 936a5cf2bb4SCornelia Huck static int virtio_ccw_exit(VirtioCcwDevice *dev) 937a5cf2bb4SCornelia Huck { 938a5cf2bb4SCornelia Huck SubchDev *sch = dev->sch; 939a5cf2bb4SCornelia Huck 940a5cf2bb4SCornelia Huck if (sch) { 941a5cf2bb4SCornelia Huck css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL); 942a5cf2bb4SCornelia Huck g_free(sch); 943a5cf2bb4SCornelia Huck } 9447bca3892SCornelia Huck if (dev->indicators) { 945d426d9fbSCornelia Huck release_indicator(&dev->routes.adapter, dev->indicators); 9467bca3892SCornelia Huck dev->indicators = NULL; 9477bca3892SCornelia Huck } 948a5cf2bb4SCornelia Huck return 0; 949a5cf2bb4SCornelia Huck } 950a5cf2bb4SCornelia Huck 9515e5ced38SMarkus Armbruster static void virtio_ccw_net_realize(VirtioCcwDevice *ccw_dev, Error **errp) 952a5cf2bb4SCornelia Huck { 953800ced8cSKONRAD Frederic DeviceState *qdev = DEVICE(ccw_dev); 95489334c8bSKONRAD Frederic VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev); 95589334c8bSKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 9565e5ced38SMarkus Armbruster Error *err = NULL; 957a5cf2bb4SCornelia Huck 958800ced8cSKONRAD Frederic virtio_net_set_netclient_name(&dev->vdev, qdev->id, 959800ced8cSKONRAD Frederic object_get_typename(OBJECT(qdev))); 96089334c8bSKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 9615e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 9625e5ced38SMarkus Armbruster if (err) { 9635e5ced38SMarkus Armbruster error_propagate(errp, err); 964a5cf2bb4SCornelia Huck } 965a5cf2bb4SCornelia Huck } 966a5cf2bb4SCornelia Huck 96789334c8bSKONRAD Frederic static void virtio_ccw_net_instance_init(Object *obj) 968a5cf2bb4SCornelia Huck { 96989334c8bSKONRAD Frederic VirtIONetCcw *dev = VIRTIO_NET_CCW(obj); 970c8075cafSGonglei 971c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 972c8075cafSGonglei TYPE_VIRTIO_NET); 9730cf63c3eSGonglei object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 9740cf63c3eSGonglei "bootindex", &error_abort); 975a5cf2bb4SCornelia Huck } 976a5cf2bb4SCornelia Huck 9775e5ced38SMarkus Armbruster static void virtio_ccw_blk_realize(VirtioCcwDevice *ccw_dev, Error **errp) 978a5cf2bb4SCornelia Huck { 9793400c455SKONRAD Frederic VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev); 9803400c455SKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 9815e5ced38SMarkus Armbruster Error *err = NULL; 9825e5ced38SMarkus Armbruster 9833400c455SKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 9845e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 9855e5ced38SMarkus Armbruster if (err) { 9865e5ced38SMarkus Armbruster error_propagate(errp, err); 987a5cf2bb4SCornelia Huck } 988a5cf2bb4SCornelia Huck } 989a5cf2bb4SCornelia Huck 9903400c455SKONRAD Frederic static void virtio_ccw_blk_instance_init(Object *obj) 991a5cf2bb4SCornelia Huck { 9923400c455SKONRAD Frederic VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj); 993c8075cafSGonglei 994c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 995c8075cafSGonglei TYPE_VIRTIO_BLK); 996467b3f33SStefan Hajnoczi object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread", 997467b3f33SStefan Hajnoczi &error_abort); 998aeb98ddcSGonglei object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), 999aeb98ddcSGonglei "bootindex", &error_abort); 1000a5cf2bb4SCornelia Huck } 1001a5cf2bb4SCornelia Huck 10025e5ced38SMarkus Armbruster static void virtio_ccw_serial_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1003a5cf2bb4SCornelia Huck { 10046acf69cdSKONRAD Frederic VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev); 10056acf69cdSKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 100680270a19SKONRAD Frederic DeviceState *proxy = DEVICE(ccw_dev); 10075e5ced38SMarkus Armbruster Error *err = NULL; 100880270a19SKONRAD Frederic char *bus_name; 100980270a19SKONRAD Frederic 101080270a19SKONRAD Frederic /* 101180270a19SKONRAD Frederic * For command line compatibility, this sets the virtio-serial-device bus 101280270a19SKONRAD Frederic * name as before. 101380270a19SKONRAD Frederic */ 101480270a19SKONRAD Frederic if (proxy->id) { 101580270a19SKONRAD Frederic bus_name = g_strdup_printf("%s.0", proxy->id); 101680270a19SKONRAD Frederic virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 101780270a19SKONRAD Frederic g_free(bus_name); 101880270a19SKONRAD Frederic } 1019a5cf2bb4SCornelia Huck 10206acf69cdSKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 10215e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 10225e5ced38SMarkus Armbruster if (err) { 10235e5ced38SMarkus Armbruster error_propagate(errp, err); 1024a5cf2bb4SCornelia Huck } 1025a5cf2bb4SCornelia Huck } 1026a5cf2bb4SCornelia Huck 10276acf69cdSKONRAD Frederic 10286acf69cdSKONRAD Frederic static void virtio_ccw_serial_instance_init(Object *obj) 1029a5cf2bb4SCornelia Huck { 10306acf69cdSKONRAD Frederic VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj); 1031c8075cafSGonglei 1032c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1033c8075cafSGonglei TYPE_VIRTIO_SERIAL); 1034a5cf2bb4SCornelia Huck } 1035a5cf2bb4SCornelia Huck 10365e5ced38SMarkus Armbruster static void virtio_ccw_balloon_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1037a5cf2bb4SCornelia Huck { 103830bff6a0SKONRAD Frederic VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev); 103930bff6a0SKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 10405e5ced38SMarkus Armbruster Error *err = NULL; 1041a5cf2bb4SCornelia Huck 104230bff6a0SKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 10435e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 10445e5ced38SMarkus Armbruster if (err) { 10455e5ced38SMarkus Armbruster error_propagate(errp, err); 1046a5cf2bb4SCornelia Huck } 1047a5cf2bb4SCornelia Huck } 1048a5cf2bb4SCornelia Huck 104930bff6a0SKONRAD Frederic static void virtio_ccw_balloon_instance_init(Object *obj) 1050a5cf2bb4SCornelia Huck { 105130bff6a0SKONRAD Frederic VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj); 1052ecfa60e3SShannon Zhao 1053a6027b0fSDenis V. Lunev virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1054a6027b0fSDenis V. Lunev TYPE_VIRTIO_BALLOON); 1055ecfa60e3SShannon Zhao object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 1056ecfa60e3SShannon Zhao "guest-stats", &error_abort); 1057ecfa60e3SShannon Zhao object_property_add_alias(obj, "guest-stats-polling-interval", 1058ecfa60e3SShannon Zhao OBJECT(&dev->vdev), 1059ecfa60e3SShannon Zhao "guest-stats-polling-interval", &error_abort); 1060a5cf2bb4SCornelia Huck } 1061a5cf2bb4SCornelia Huck 10625e5ced38SMarkus Armbruster static void virtio_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1063a5cf2bb4SCornelia Huck { 1064c908ea10SKONRAD Frederic VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev); 1065c908ea10SKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 10666f32a6b4SKONRAD Frederic DeviceState *qdev = DEVICE(ccw_dev); 10675e5ced38SMarkus Armbruster Error *err = NULL; 10686f32a6b4SKONRAD Frederic char *bus_name; 10696f32a6b4SKONRAD Frederic 10706f32a6b4SKONRAD Frederic /* 10716f32a6b4SKONRAD Frederic * For command line compatibility, this sets the virtio-scsi-device bus 10726f32a6b4SKONRAD Frederic * name as before. 10736f32a6b4SKONRAD Frederic */ 10746f32a6b4SKONRAD Frederic if (qdev->id) { 10756f32a6b4SKONRAD Frederic bus_name = g_strdup_printf("%s.0", qdev->id); 10766f32a6b4SKONRAD Frederic virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); 10776f32a6b4SKONRAD Frederic g_free(bus_name); 10786f32a6b4SKONRAD Frederic } 1079a5cf2bb4SCornelia Huck 1080c908ea10SKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 10815e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 10825e5ced38SMarkus Armbruster if (err) { 10835e5ced38SMarkus Armbruster error_propagate(errp, err); 1084a5cf2bb4SCornelia Huck } 1085a5cf2bb4SCornelia Huck } 1086a5cf2bb4SCornelia Huck 1087c908ea10SKONRAD Frederic static void virtio_ccw_scsi_instance_init(Object *obj) 1088a5cf2bb4SCornelia Huck { 1089c908ea10SKONRAD Frederic VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj); 1090c8075cafSGonglei 1091c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1092c8075cafSGonglei TYPE_VIRTIO_SCSI); 109319d339f1SFam Zheng object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread", 109419d339f1SFam Zheng &error_abort); 1095a5cf2bb4SCornelia Huck } 1096a5cf2bb4SCornelia Huck 1097ccf6916cSPaolo Bonzini #ifdef CONFIG_VHOST_SCSI 10985e5ced38SMarkus Armbruster static void vhost_ccw_scsi_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1099ccf6916cSPaolo Bonzini { 1100ccf6916cSPaolo Bonzini VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev); 1101ccf6916cSPaolo Bonzini DeviceState *vdev = DEVICE(&dev->vdev); 11025e5ced38SMarkus Armbruster Error *err = NULL; 1103ccf6916cSPaolo Bonzini 1104ccf6916cSPaolo Bonzini qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 11055e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 11065e5ced38SMarkus Armbruster if (err) { 11075e5ced38SMarkus Armbruster error_propagate(errp, err); 1108ccf6916cSPaolo Bonzini } 1109ccf6916cSPaolo Bonzini } 1110ccf6916cSPaolo Bonzini 1111ccf6916cSPaolo Bonzini static void vhost_ccw_scsi_instance_init(Object *obj) 1112ccf6916cSPaolo Bonzini { 1113ccf6916cSPaolo Bonzini VHostSCSICcw *dev = VHOST_SCSI_CCW(obj); 1114c8075cafSGonglei 1115c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1116c8075cafSGonglei TYPE_VHOST_SCSI); 1117ccf6916cSPaolo Bonzini } 1118ccf6916cSPaolo Bonzini #endif 1119ccf6916cSPaolo Bonzini 11205e5ced38SMarkus Armbruster static void virtio_ccw_rng_realize(VirtioCcwDevice *ccw_dev, Error **errp) 11212362ecc5SCornelia Huck { 11222db26d4cSKONRAD Frederic VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev); 11232db26d4cSKONRAD Frederic DeviceState *vdev = DEVICE(&dev->vdev); 11245e5ced38SMarkus Armbruster Error *err = NULL; 11252362ecc5SCornelia Huck 11262db26d4cSKONRAD Frederic qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 11275e5ced38SMarkus Armbruster object_property_set_bool(OBJECT(vdev), true, "realized", &err); 11285e5ced38SMarkus Armbruster if (err) { 11295e5ced38SMarkus Armbruster error_propagate(errp, err); 11305e5ced38SMarkus Armbruster return; 11312362ecc5SCornelia Huck } 11322362ecc5SCornelia Huck 11332db26d4cSKONRAD Frederic object_property_set_link(OBJECT(dev), 11345b456438SCole Robinson OBJECT(dev->vdev.conf.rng), "rng", 11352db26d4cSKONRAD Frederic NULL); 11362362ecc5SCornelia Huck } 11372362ecc5SCornelia Huck 1138a5cf2bb4SCornelia Huck /* DeviceState to VirtioCcwDevice. Note: used on datapath, 1139a5cf2bb4SCornelia Huck * be careful and test performance if you change this. 1140a5cf2bb4SCornelia Huck */ 1141a5cf2bb4SCornelia Huck static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d) 1142a5cf2bb4SCornelia Huck { 1143a5cf2bb4SCornelia Huck return container_of(d, VirtioCcwDevice, parent_obj); 1144a5cf2bb4SCornelia Huck } 1145a5cf2bb4SCornelia Huck 11467e749462SCornelia Huck static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc, 11477e749462SCornelia Huck uint8_t to_be_set) 11487e749462SCornelia Huck { 11497e749462SCornelia Huck uint8_t ind_old, ind_new; 11507e749462SCornelia Huck hwaddr len = 1; 11517e749462SCornelia Huck uint8_t *ind_addr; 11527e749462SCornelia Huck 11537e749462SCornelia Huck ind_addr = cpu_physical_memory_map(ind_loc, &len, 1); 11547e749462SCornelia Huck if (!ind_addr) { 11557e749462SCornelia Huck error_report("%s(%x.%x.%04x): unable to access indicator", 11567e749462SCornelia Huck __func__, sch->cssid, sch->ssid, sch->schid); 11577e749462SCornelia Huck return -1; 11587e749462SCornelia Huck } 11597e749462SCornelia Huck do { 11607e749462SCornelia Huck ind_old = *ind_addr; 11617e749462SCornelia Huck ind_new = ind_old | to_be_set; 11627e749462SCornelia Huck } while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old); 11637e749462SCornelia Huck cpu_physical_memory_unmap(ind_addr, len, 1, len); 11647e749462SCornelia Huck 11657e749462SCornelia Huck return ind_old; 11667e749462SCornelia Huck } 11677e749462SCornelia Huck 1168a5cf2bb4SCornelia Huck static void virtio_ccw_notify(DeviceState *d, uint16_t vector) 1169a5cf2bb4SCornelia Huck { 1170a5cf2bb4SCornelia Huck VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d); 1171a5cf2bb4SCornelia Huck SubchDev *sch = dev->sch; 1172a5cf2bb4SCornelia Huck uint64_t indicators; 1173a5cf2bb4SCornelia Huck 1174a5cf2bb4SCornelia Huck if (vector >= 128) { 1175a5cf2bb4SCornelia Huck return; 1176a5cf2bb4SCornelia Huck } 1177a5cf2bb4SCornelia Huck 11788dfbaa6aSJason Wang if (vector < VIRTIO_CCW_QUEUE_MAX) { 11797c486976SCornelia Huck if (!dev->indicators) { 11807c486976SCornelia Huck return; 11817c486976SCornelia Huck } 11827e749462SCornelia Huck if (sch->thinint_active) { 11837e749462SCornelia Huck /* 11847e749462SCornelia Huck * In the adapter interrupt case, indicators points to a 11857e749462SCornelia Huck * memory area that may be (way) larger than 64 bit and 11867e749462SCornelia Huck * ind_bit indicates the start of the indicators in a big 11877e749462SCornelia Huck * endian notation. 11887e749462SCornelia Huck */ 1189d426d9fbSCornelia Huck uint64_t ind_bit = dev->routes.adapter.ind_offset; 1190d426d9fbSCornelia Huck 11917bca3892SCornelia Huck virtio_set_ind_atomic(sch, dev->indicators->addr + 1192d426d9fbSCornelia Huck (ind_bit + vector) / 8, 1193d426d9fbSCornelia Huck 0x80 >> ((ind_bit + vector) % 8)); 11947bca3892SCornelia Huck if (!virtio_set_ind_atomic(sch, dev->summary_indicator->addr, 11957e749462SCornelia Huck 0x01)) { 11967e749462SCornelia Huck css_adapter_interrupt(dev->thinint_isc); 11977e749462SCornelia Huck } 11987e749462SCornelia Huck } else { 119942874d3aSPeter Maydell indicators = address_space_ldq(&address_space_memory, 120042874d3aSPeter Maydell dev->indicators->addr, 120142874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 120242874d3aSPeter Maydell NULL); 120319380b1bSCornelia Huck indicators |= 1ULL << vector; 120442874d3aSPeter Maydell address_space_stq(&address_space_memory, dev->indicators->addr, 120542874d3aSPeter Maydell indicators, MEMTXATTRS_UNSPECIFIED, NULL); 12067e749462SCornelia Huck css_conditional_io_interrupt(sch); 12077e749462SCornelia Huck } 1208a5cf2bb4SCornelia Huck } else { 12097c486976SCornelia Huck if (!dev->indicators2) { 12107c486976SCornelia Huck return; 12117c486976SCornelia Huck } 1212a5cf2bb4SCornelia Huck vector = 0; 121342874d3aSPeter Maydell indicators = address_space_ldq(&address_space_memory, 121442874d3aSPeter Maydell dev->indicators2->addr, 121542874d3aSPeter Maydell MEMTXATTRS_UNSPECIFIED, 121642874d3aSPeter Maydell NULL); 121719380b1bSCornelia Huck indicators |= 1ULL << vector; 121842874d3aSPeter Maydell address_space_stq(&address_space_memory, dev->indicators2->addr, 121942874d3aSPeter Maydell indicators, MEMTXATTRS_UNSPECIFIED, NULL); 1220a5cf2bb4SCornelia Huck css_conditional_io_interrupt(sch); 12217e749462SCornelia Huck } 1222a5cf2bb4SCornelia Huck } 1223a5cf2bb4SCornelia Huck 1224a5cf2bb4SCornelia Huck static void virtio_ccw_reset(DeviceState *d) 1225a5cf2bb4SCornelia Huck { 1226a5cf2bb4SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1227f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1228a5cf2bb4SCornelia Huck 1229fa8b0ca5SCornelia Huck virtio_ccw_reset_virtio(dev, vdev); 1230a5cf2bb4SCornelia Huck css_reset_sch(dev->sch); 1231a5cf2bb4SCornelia Huck } 1232a5cf2bb4SCornelia Huck 1233b4436a0bSCornelia Huck static void virtio_ccw_vmstate_change(DeviceState *d, bool running) 1234b4436a0bSCornelia Huck { 1235b4436a0bSCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1236b4436a0bSCornelia Huck 1237b4436a0bSCornelia Huck if (running) { 1238b4436a0bSCornelia Huck virtio_ccw_start_ioeventfd(dev); 1239b4436a0bSCornelia Huck } else { 1240b4436a0bSCornelia Huck virtio_ccw_stop_ioeventfd(dev); 1241b4436a0bSCornelia Huck } 1242b4436a0bSCornelia Huck } 1243b4436a0bSCornelia Huck 1244320ce850SCornelia Huck static bool virtio_ccw_query_guest_notifiers(DeviceState *d) 1245320ce850SCornelia Huck { 1246320ce850SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1247320ce850SCornelia Huck 1248320ce850SCornelia Huck return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA); 1249320ce850SCornelia Huck } 1250320ce850SCornelia Huck 1251320ce850SCornelia Huck static int virtio_ccw_set_host_notifier(DeviceState *d, int n, bool assign) 1252320ce850SCornelia Huck { 1253320ce850SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1254320ce850SCornelia Huck 1255320ce850SCornelia Huck /* Stop using the generic ioeventfd, we are doing eventfd handling 1256320ce850SCornelia Huck * ourselves below */ 1257320ce850SCornelia Huck dev->ioeventfd_disabled = assign; 1258320ce850SCornelia Huck if (assign) { 1259320ce850SCornelia Huck virtio_ccw_stop_ioeventfd(dev); 1260320ce850SCornelia Huck } 1261320ce850SCornelia Huck return virtio_ccw_set_guest2host_notifier(dev, n, assign, false); 1262320ce850SCornelia Huck } 1263320ce850SCornelia Huck 1264d426d9fbSCornelia Huck static int virtio_ccw_get_mappings(VirtioCcwDevice *dev) 1265d426d9fbSCornelia Huck { 1266d426d9fbSCornelia Huck int r; 1267d426d9fbSCornelia Huck 1268d426d9fbSCornelia Huck if (!dev->sch->thinint_active) { 1269d426d9fbSCornelia Huck return -EINVAL; 1270d426d9fbSCornelia Huck } 1271d426d9fbSCornelia Huck 1272d426d9fbSCornelia Huck r = map_indicator(&dev->routes.adapter, dev->summary_indicator); 1273d426d9fbSCornelia Huck if (r) { 1274d426d9fbSCornelia Huck return r; 1275d426d9fbSCornelia Huck } 1276d426d9fbSCornelia Huck r = map_indicator(&dev->routes.adapter, dev->indicators); 1277d426d9fbSCornelia Huck if (r) { 1278d426d9fbSCornelia Huck return r; 1279d426d9fbSCornelia Huck } 1280d426d9fbSCornelia Huck dev->routes.adapter.summary_addr = dev->summary_indicator->map; 1281d426d9fbSCornelia Huck dev->routes.adapter.ind_addr = dev->indicators->map; 1282d426d9fbSCornelia Huck 1283d426d9fbSCornelia Huck return 0; 1284d426d9fbSCornelia Huck } 1285d426d9fbSCornelia Huck 1286d426d9fbSCornelia Huck static int virtio_ccw_setup_irqroutes(VirtioCcwDevice *dev, int nvqs) 1287d426d9fbSCornelia Huck { 1288d426d9fbSCornelia Huck int i; 1289d426d9fbSCornelia Huck VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1290d426d9fbSCornelia Huck int ret; 1291d426d9fbSCornelia Huck S390FLICState *fs = s390_get_flic(); 1292d426d9fbSCornelia Huck S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); 1293d426d9fbSCornelia Huck 1294d426d9fbSCornelia Huck ret = virtio_ccw_get_mappings(dev); 1295d426d9fbSCornelia Huck if (ret) { 1296d426d9fbSCornelia Huck return ret; 1297d426d9fbSCornelia Huck } 1298d426d9fbSCornelia Huck for (i = 0; i < nvqs; i++) { 1299d426d9fbSCornelia Huck if (!virtio_queue_get_num(vdev, i)) { 1300d426d9fbSCornelia Huck break; 1301d426d9fbSCornelia Huck } 1302d426d9fbSCornelia Huck } 1303d426d9fbSCornelia Huck dev->routes.num_routes = i; 1304d426d9fbSCornelia Huck return fsc->add_adapter_routes(fs, &dev->routes); 1305d426d9fbSCornelia Huck } 1306d426d9fbSCornelia Huck 1307d426d9fbSCornelia Huck static void virtio_ccw_release_irqroutes(VirtioCcwDevice *dev, int nvqs) 1308d426d9fbSCornelia Huck { 1309d426d9fbSCornelia Huck S390FLICState *fs = s390_get_flic(); 1310d426d9fbSCornelia Huck S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs); 1311d426d9fbSCornelia Huck 1312d426d9fbSCornelia Huck fsc->release_adapter_routes(fs, &dev->routes); 1313d426d9fbSCornelia Huck } 1314d426d9fbSCornelia Huck 1315d426d9fbSCornelia Huck static int virtio_ccw_add_irqfd(VirtioCcwDevice *dev, int n) 1316d426d9fbSCornelia Huck { 1317d426d9fbSCornelia Huck VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1318d426d9fbSCornelia Huck VirtQueue *vq = virtio_get_queue(vdev, n); 1319d426d9fbSCornelia Huck EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1320d426d9fbSCornelia Huck 13211c9b71a7SEric Auger return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, notifier, NULL, 1322d426d9fbSCornelia Huck dev->routes.gsi[n]); 1323d426d9fbSCornelia Huck } 1324d426d9fbSCornelia Huck 1325d426d9fbSCornelia Huck static void virtio_ccw_remove_irqfd(VirtioCcwDevice *dev, int n) 1326d426d9fbSCornelia Huck { 1327d426d9fbSCornelia Huck VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1328d426d9fbSCornelia Huck VirtQueue *vq = virtio_get_queue(vdev, n); 1329d426d9fbSCornelia Huck EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1330d426d9fbSCornelia Huck int ret; 1331d426d9fbSCornelia Huck 13321c9b71a7SEric Auger ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, notifier, 1333d426d9fbSCornelia Huck dev->routes.gsi[n]); 1334d426d9fbSCornelia Huck assert(ret == 0); 1335d426d9fbSCornelia Huck } 1336d426d9fbSCornelia Huck 1337320ce850SCornelia Huck static int virtio_ccw_set_guest_notifier(VirtioCcwDevice *dev, int n, 1338320ce850SCornelia Huck bool assign, bool with_irqfd) 1339320ce850SCornelia Huck { 1340f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1341f24a6840SPaolo Bonzini VirtQueue *vq = virtio_get_queue(vdev, n); 1342320ce850SCornelia Huck EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); 1343f24a6840SPaolo Bonzini VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); 1344320ce850SCornelia Huck 1345320ce850SCornelia Huck if (assign) { 1346320ce850SCornelia Huck int r = event_notifier_init(notifier, 0); 1347320ce850SCornelia Huck 1348320ce850SCornelia Huck if (r < 0) { 1349320ce850SCornelia Huck return r; 1350320ce850SCornelia Huck } 1351320ce850SCornelia Huck virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd); 1352d426d9fbSCornelia Huck if (with_irqfd) { 1353d426d9fbSCornelia Huck r = virtio_ccw_add_irqfd(dev, n); 1354d426d9fbSCornelia Huck if (r) { 1355d426d9fbSCornelia Huck virtio_queue_set_guest_notifier_fd_handler(vq, false, 1356d426d9fbSCornelia Huck with_irqfd); 1357d426d9fbSCornelia Huck return r; 1358d426d9fbSCornelia Huck } 1359d426d9fbSCornelia Huck } 1360d426d9fbSCornelia Huck /* 1361d426d9fbSCornelia Huck * We do not support individual masking for channel devices, so we 1362d426d9fbSCornelia Huck * need to manually trigger any guest masking callbacks here. 1363320ce850SCornelia Huck */ 1364320ce850SCornelia Huck if (k->guest_notifier_mask) { 1365f24a6840SPaolo Bonzini k->guest_notifier_mask(vdev, n, false); 1366320ce850SCornelia Huck } 1367320ce850SCornelia Huck /* get lost events and re-inject */ 1368320ce850SCornelia Huck if (k->guest_notifier_pending && 1369f24a6840SPaolo Bonzini k->guest_notifier_pending(vdev, n)) { 1370320ce850SCornelia Huck event_notifier_set(notifier); 1371320ce850SCornelia Huck } 1372320ce850SCornelia Huck } else { 1373320ce850SCornelia Huck if (k->guest_notifier_mask) { 1374f24a6840SPaolo Bonzini k->guest_notifier_mask(vdev, n, true); 1375320ce850SCornelia Huck } 1376d426d9fbSCornelia Huck if (with_irqfd) { 1377d426d9fbSCornelia Huck virtio_ccw_remove_irqfd(dev, n); 1378d426d9fbSCornelia Huck } 1379320ce850SCornelia Huck virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd); 1380320ce850SCornelia Huck event_notifier_cleanup(notifier); 1381320ce850SCornelia Huck } 1382320ce850SCornelia Huck return 0; 1383320ce850SCornelia Huck } 1384320ce850SCornelia Huck 1385320ce850SCornelia Huck static int virtio_ccw_set_guest_notifiers(DeviceState *d, int nvqs, 1386320ce850SCornelia Huck bool assigned) 1387320ce850SCornelia Huck { 1388320ce850SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1389f24a6840SPaolo Bonzini VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1390d426d9fbSCornelia Huck bool with_irqfd = dev->sch->thinint_active && kvm_irqfds_enabled(); 1391320ce850SCornelia Huck int r, n; 1392320ce850SCornelia Huck 1393d426d9fbSCornelia Huck if (with_irqfd && assigned) { 1394d426d9fbSCornelia Huck /* irq routes need to be set up before assigning irqfds */ 1395d426d9fbSCornelia Huck r = virtio_ccw_setup_irqroutes(dev, nvqs); 1396d426d9fbSCornelia Huck if (r < 0) { 1397d426d9fbSCornelia Huck goto irqroute_error; 1398d426d9fbSCornelia Huck } 1399d426d9fbSCornelia Huck } 1400320ce850SCornelia Huck for (n = 0; n < nvqs; n++) { 1401320ce850SCornelia Huck if (!virtio_queue_get_num(vdev, n)) { 1402320ce850SCornelia Huck break; 1403320ce850SCornelia Huck } 1404d426d9fbSCornelia Huck r = virtio_ccw_set_guest_notifier(dev, n, assigned, with_irqfd); 1405320ce850SCornelia Huck if (r < 0) { 1406320ce850SCornelia Huck goto assign_error; 1407320ce850SCornelia Huck } 1408320ce850SCornelia Huck } 1409d426d9fbSCornelia Huck if (with_irqfd && !assigned) { 1410d426d9fbSCornelia Huck /* release irq routes after irqfds have been released */ 1411d426d9fbSCornelia Huck virtio_ccw_release_irqroutes(dev, nvqs); 1412d426d9fbSCornelia Huck } 1413320ce850SCornelia Huck return 0; 1414320ce850SCornelia Huck 1415320ce850SCornelia Huck assign_error: 1416320ce850SCornelia Huck while (--n >= 0) { 1417320ce850SCornelia Huck virtio_ccw_set_guest_notifier(dev, n, !assigned, false); 1418320ce850SCornelia Huck } 1419d426d9fbSCornelia Huck irqroute_error: 1420d426d9fbSCornelia Huck if (with_irqfd && assigned) { 1421d426d9fbSCornelia Huck virtio_ccw_release_irqroutes(dev, nvqs); 1422d426d9fbSCornelia Huck } 1423320ce850SCornelia Huck return r; 1424320ce850SCornelia Huck } 1425320ce850SCornelia Huck 1426bcb2b582SJens Freimann static void virtio_ccw_save_queue(DeviceState *d, int n, QEMUFile *f) 1427bcb2b582SJens Freimann { 1428bcb2b582SJens Freimann VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1429bcb2b582SJens Freimann VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1430bcb2b582SJens Freimann 1431bcb2b582SJens Freimann qemu_put_be16(f, virtio_queue_vector(vdev, n)); 1432bcb2b582SJens Freimann } 1433bcb2b582SJens Freimann 1434bcb2b582SJens Freimann static int virtio_ccw_load_queue(DeviceState *d, int n, QEMUFile *f) 1435bcb2b582SJens Freimann { 1436bcb2b582SJens Freimann VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1437bcb2b582SJens Freimann VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1438bcb2b582SJens Freimann uint16_t vector; 1439bcb2b582SJens Freimann 1440bcb2b582SJens Freimann qemu_get_be16s(f, &vector); 1441bcb2b582SJens Freimann virtio_queue_set_vector(vdev, n , vector); 1442bcb2b582SJens Freimann 1443bcb2b582SJens Freimann return 0; 1444bcb2b582SJens Freimann } 1445bcb2b582SJens Freimann 1446bcb2b582SJens Freimann static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f) 1447bcb2b582SJens Freimann { 1448bcb2b582SJens Freimann VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1449bcb2b582SJens Freimann SubchDev *s = dev->sch; 14502a72ea5fSJason J. Herne VirtIODevice *vdev = virtio_ccw_get_vdev(s); 1451bcb2b582SJens Freimann 1452bcb2b582SJens Freimann subch_device_save(s, f); 1453bcb2b582SJens Freimann if (dev->indicators != NULL) { 1454bcb2b582SJens Freimann qemu_put_be32(f, dev->indicators->len); 1455bcb2b582SJens Freimann qemu_put_be64(f, dev->indicators->addr); 1456bcb2b582SJens Freimann } else { 1457bcb2b582SJens Freimann qemu_put_be32(f, 0); 1458bcb2b582SJens Freimann qemu_put_be64(f, 0UL); 1459bcb2b582SJens Freimann } 1460bcb2b582SJens Freimann if (dev->indicators2 != NULL) { 1461bcb2b582SJens Freimann qemu_put_be32(f, dev->indicators2->len); 1462bcb2b582SJens Freimann qemu_put_be64(f, dev->indicators2->addr); 1463bcb2b582SJens Freimann } else { 1464bcb2b582SJens Freimann qemu_put_be32(f, 0); 1465bcb2b582SJens Freimann qemu_put_be64(f, 0UL); 1466bcb2b582SJens Freimann } 1467bcb2b582SJens Freimann if (dev->summary_indicator != NULL) { 1468bcb2b582SJens Freimann qemu_put_be32(f, dev->summary_indicator->len); 1469bcb2b582SJens Freimann qemu_put_be64(f, dev->summary_indicator->addr); 1470bcb2b582SJens Freimann } else { 1471bcb2b582SJens Freimann qemu_put_be32(f, 0); 1472bcb2b582SJens Freimann qemu_put_be64(f, 0UL); 1473bcb2b582SJens Freimann } 14742a72ea5fSJason J. Herne qemu_put_be16(f, vdev->config_vector); 1475bcb2b582SJens Freimann qemu_put_be64(f, dev->routes.adapter.ind_offset); 1476bcb2b582SJens Freimann qemu_put_byte(f, dev->thinint_isc); 1477213941d7SCornelia Huck qemu_put_be32(f, dev->revision); 1478bcb2b582SJens Freimann } 1479bcb2b582SJens Freimann 1480bcb2b582SJens Freimann static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f) 1481bcb2b582SJens Freimann { 1482bcb2b582SJens Freimann VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1483bcb2b582SJens Freimann SubchDev *s = dev->sch; 14842a72ea5fSJason J. Herne VirtIODevice *vdev = virtio_ccw_get_vdev(s); 1485bcb2b582SJens Freimann int len; 1486bcb2b582SJens Freimann 1487bcb2b582SJens Freimann s->driver_data = dev; 1488bcb2b582SJens Freimann subch_device_load(s, f); 1489bcb2b582SJens Freimann len = qemu_get_be32(f); 1490bcb2b582SJens Freimann if (len != 0) { 1491bcb2b582SJens Freimann dev->indicators = get_indicator(qemu_get_be64(f), len); 1492bcb2b582SJens Freimann } else { 1493bcb2b582SJens Freimann qemu_get_be64(f); 1494bcb2b582SJens Freimann dev->indicators = NULL; 1495bcb2b582SJens Freimann } 1496bcb2b582SJens Freimann len = qemu_get_be32(f); 1497bcb2b582SJens Freimann if (len != 0) { 1498bcb2b582SJens Freimann dev->indicators2 = get_indicator(qemu_get_be64(f), len); 1499bcb2b582SJens Freimann } else { 1500bcb2b582SJens Freimann qemu_get_be64(f); 1501bcb2b582SJens Freimann dev->indicators2 = NULL; 1502bcb2b582SJens Freimann } 1503bcb2b582SJens Freimann len = qemu_get_be32(f); 1504bcb2b582SJens Freimann if (len != 0) { 1505bcb2b582SJens Freimann dev->summary_indicator = get_indicator(qemu_get_be64(f), len); 1506bcb2b582SJens Freimann } else { 1507bcb2b582SJens Freimann qemu_get_be64(f); 1508bcb2b582SJens Freimann dev->summary_indicator = NULL; 1509bcb2b582SJens Freimann } 15102a72ea5fSJason J. Herne qemu_get_be16s(f, &vdev->config_vector); 1511bcb2b582SJens Freimann dev->routes.adapter.ind_offset = qemu_get_be64(f); 1512bcb2b582SJens Freimann dev->thinint_isc = qemu_get_byte(f); 15132af9170cSChristian Borntraeger dev->revision = qemu_get_be32(f); 1514bcb2b582SJens Freimann if (s->thinint_active) { 1515bcb2b582SJens Freimann return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO, 1516bcb2b582SJens Freimann dev->thinint_isc, true, false, 1517bcb2b582SJens Freimann &dev->routes.adapter.adapter_id); 1518bcb2b582SJens Freimann } 1519bcb2b582SJens Freimann 1520bcb2b582SJens Freimann return 0; 1521bcb2b582SJens Freimann } 1522bcb2b582SJens Freimann 1523fb846a09SCornelia Huck /* This is called by virtio-bus just after the device is plugged. */ 1524e8398045SJason Wang static void virtio_ccw_device_plugged(DeviceState *d, Error **errp) 1525fb846a09SCornelia Huck { 1526fb846a09SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 152710ceaa1eSJason Wang VirtIODevice *vdev = virtio_bus_get_device(&dev->bus); 1528fb846a09SCornelia Huck SubchDev *sch = dev->sch; 152910ceaa1eSJason Wang int n = virtio_get_num_queues(vdev); 153010ceaa1eSJason Wang 153110ceaa1eSJason Wang if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) { 153210ceaa1eSJason Wang error_setg(errp, "The nubmer of virtqueues %d " 153310ceaa1eSJason Wang "exceeds ccw limit %d", n, 153410ceaa1eSJason Wang VIRTIO_CCW_QUEUE_MAX); 153510ceaa1eSJason Wang return; 153610ceaa1eSJason Wang } 1537fb846a09SCornelia Huck 1538a499973fSAurelien Jarno if (!kvm_eventfds_enabled()) { 1539a499973fSAurelien Jarno dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD; 1540a499973fSAurelien Jarno } 1541a499973fSAurelien Jarno 1542fb846a09SCornelia Huck sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus); 1543fb846a09SCornelia Huck 1544fb846a09SCornelia Huck css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1545fb846a09SCornelia Huck d->hotplugged, 1); 1546fb846a09SCornelia Huck } 1547fb846a09SCornelia Huck 1548fb846a09SCornelia Huck static void virtio_ccw_device_unplugged(DeviceState *d) 1549fb846a09SCornelia Huck { 1550fb846a09SCornelia Huck VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d); 1551fb846a09SCornelia Huck 1552fb846a09SCornelia Huck virtio_ccw_stop_ioeventfd(dev); 1553fb846a09SCornelia Huck } 1554a5cf2bb4SCornelia Huck /**************** Virtio-ccw Bus Device Descriptions *******************/ 1555a5cf2bb4SCornelia Huck 1556a5cf2bb4SCornelia Huck static Property virtio_ccw_net_properties[] = { 1557a5cf2bb4SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1558b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1559b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1560a5cf2bb4SCornelia Huck DEFINE_PROP_END_OF_LIST(), 1561a5cf2bb4SCornelia Huck }; 1562a5cf2bb4SCornelia Huck 1563a5cf2bb4SCornelia Huck static void virtio_ccw_net_class_init(ObjectClass *klass, void *data) 1564a5cf2bb4SCornelia Huck { 1565a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1566a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1567a5cf2bb4SCornelia Huck 15685e5ced38SMarkus Armbruster k->realize = virtio_ccw_net_realize; 156989334c8bSKONRAD Frederic k->exit = virtio_ccw_exit; 1570a5cf2bb4SCornelia Huck dc->reset = virtio_ccw_reset; 1571a5cf2bb4SCornelia Huck dc->props = virtio_ccw_net_properties; 1572cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); 1573a5cf2bb4SCornelia Huck } 1574a5cf2bb4SCornelia Huck 1575a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_net = { 157689334c8bSKONRAD Frederic .name = TYPE_VIRTIO_NET_CCW, 1577a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 157889334c8bSKONRAD Frederic .instance_size = sizeof(VirtIONetCcw), 157989334c8bSKONRAD Frederic .instance_init = virtio_ccw_net_instance_init, 1580a5cf2bb4SCornelia Huck .class_init = virtio_ccw_net_class_init, 1581a5cf2bb4SCornelia Huck }; 1582a5cf2bb4SCornelia Huck 1583a5cf2bb4SCornelia Huck static Property virtio_ccw_blk_properties[] = { 1584a5cf2bb4SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1585b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1586b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1587a5cf2bb4SCornelia Huck DEFINE_PROP_END_OF_LIST(), 1588a5cf2bb4SCornelia Huck }; 1589a5cf2bb4SCornelia Huck 1590a5cf2bb4SCornelia Huck static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data) 1591a5cf2bb4SCornelia Huck { 1592a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1593a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1594a5cf2bb4SCornelia Huck 15955e5ced38SMarkus Armbruster k->realize = virtio_ccw_blk_realize; 15963400c455SKONRAD Frederic k->exit = virtio_ccw_exit; 1597a5cf2bb4SCornelia Huck dc->reset = virtio_ccw_reset; 1598a5cf2bb4SCornelia Huck dc->props = virtio_ccw_blk_properties; 1599cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1600a5cf2bb4SCornelia Huck } 1601a5cf2bb4SCornelia Huck 1602a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_blk = { 16033400c455SKONRAD Frederic .name = TYPE_VIRTIO_BLK_CCW, 1604a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 16053400c455SKONRAD Frederic .instance_size = sizeof(VirtIOBlkCcw), 16063400c455SKONRAD Frederic .instance_init = virtio_ccw_blk_instance_init, 1607a5cf2bb4SCornelia Huck .class_init = virtio_ccw_blk_class_init, 1608a5cf2bb4SCornelia Huck }; 1609a5cf2bb4SCornelia Huck 1610a5cf2bb4SCornelia Huck static Property virtio_ccw_serial_properties[] = { 1611a5cf2bb4SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1612b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1613b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1614a5cf2bb4SCornelia Huck DEFINE_PROP_END_OF_LIST(), 1615a5cf2bb4SCornelia Huck }; 1616a5cf2bb4SCornelia Huck 1617a5cf2bb4SCornelia Huck static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data) 1618a5cf2bb4SCornelia Huck { 1619a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1620a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1621a5cf2bb4SCornelia Huck 16225e5ced38SMarkus Armbruster k->realize = virtio_ccw_serial_realize; 16236acf69cdSKONRAD Frederic k->exit = virtio_ccw_exit; 1624a5cf2bb4SCornelia Huck dc->reset = virtio_ccw_reset; 1625a5cf2bb4SCornelia Huck dc->props = virtio_ccw_serial_properties; 1626cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_INPUT, dc->categories); 1627a5cf2bb4SCornelia Huck } 1628a5cf2bb4SCornelia Huck 1629a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_serial = { 16306acf69cdSKONRAD Frederic .name = TYPE_VIRTIO_SERIAL_CCW, 1631a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 16326acf69cdSKONRAD Frederic .instance_size = sizeof(VirtioSerialCcw), 16336acf69cdSKONRAD Frederic .instance_init = virtio_ccw_serial_instance_init, 1634a5cf2bb4SCornelia Huck .class_init = virtio_ccw_serial_class_init, 1635a5cf2bb4SCornelia Huck }; 1636a5cf2bb4SCornelia Huck 1637a5cf2bb4SCornelia Huck static Property virtio_ccw_balloon_properties[] = { 1638a5cf2bb4SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1639b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1640b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1641a5cf2bb4SCornelia Huck DEFINE_PROP_END_OF_LIST(), 1642a5cf2bb4SCornelia Huck }; 1643a5cf2bb4SCornelia Huck 1644a5cf2bb4SCornelia Huck static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data) 1645a5cf2bb4SCornelia Huck { 1646a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1647a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1648a5cf2bb4SCornelia Huck 16495e5ced38SMarkus Armbruster k->realize = virtio_ccw_balloon_realize; 165030bff6a0SKONRAD Frederic k->exit = virtio_ccw_exit; 1651a5cf2bb4SCornelia Huck dc->reset = virtio_ccw_reset; 1652a5cf2bb4SCornelia Huck dc->props = virtio_ccw_balloon_properties; 1653cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_MISC, dc->categories); 1654a5cf2bb4SCornelia Huck } 1655a5cf2bb4SCornelia Huck 1656a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_balloon = { 165730bff6a0SKONRAD Frederic .name = TYPE_VIRTIO_BALLOON_CCW, 1658a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 165930bff6a0SKONRAD Frederic .instance_size = sizeof(VirtIOBalloonCcw), 166030bff6a0SKONRAD Frederic .instance_init = virtio_ccw_balloon_instance_init, 1661a5cf2bb4SCornelia Huck .class_init = virtio_ccw_balloon_class_init, 1662a5cf2bb4SCornelia Huck }; 1663a5cf2bb4SCornelia Huck 1664a5cf2bb4SCornelia Huck static Property virtio_ccw_scsi_properties[] = { 1665a5cf2bb4SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1666b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1667b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1668a5cf2bb4SCornelia Huck DEFINE_PROP_END_OF_LIST(), 1669a5cf2bb4SCornelia Huck }; 1670a5cf2bb4SCornelia Huck 1671a5cf2bb4SCornelia Huck static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data) 1672a5cf2bb4SCornelia Huck { 1673a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1674a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1675a5cf2bb4SCornelia Huck 16765e5ced38SMarkus Armbruster k->realize = virtio_ccw_scsi_realize; 1677c908ea10SKONRAD Frederic k->exit = virtio_ccw_exit; 1678a5cf2bb4SCornelia Huck dc->reset = virtio_ccw_reset; 1679a5cf2bb4SCornelia Huck dc->props = virtio_ccw_scsi_properties; 1680cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1681a5cf2bb4SCornelia Huck } 1682a5cf2bb4SCornelia Huck 1683a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_scsi = { 1684c908ea10SKONRAD Frederic .name = TYPE_VIRTIO_SCSI_CCW, 1685a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 1686c908ea10SKONRAD Frederic .instance_size = sizeof(VirtIOSCSICcw), 1687c908ea10SKONRAD Frederic .instance_init = virtio_ccw_scsi_instance_init, 1688a5cf2bb4SCornelia Huck .class_init = virtio_ccw_scsi_class_init, 1689a5cf2bb4SCornelia Huck }; 1690a5cf2bb4SCornelia Huck 1691ccf6916cSPaolo Bonzini #ifdef CONFIG_VHOST_SCSI 1692ccf6916cSPaolo Bonzini static Property vhost_ccw_scsi_properties[] = { 1693ccf6916cSPaolo Bonzini DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1694ccf6916cSPaolo Bonzini DEFINE_PROP_END_OF_LIST(), 1695ccf6916cSPaolo Bonzini }; 1696ccf6916cSPaolo Bonzini 1697ccf6916cSPaolo Bonzini static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data) 1698ccf6916cSPaolo Bonzini { 1699ccf6916cSPaolo Bonzini DeviceClass *dc = DEVICE_CLASS(klass); 1700ccf6916cSPaolo Bonzini VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1701ccf6916cSPaolo Bonzini 17025e5ced38SMarkus Armbruster k->realize = vhost_ccw_scsi_realize; 1703ccf6916cSPaolo Bonzini k->exit = virtio_ccw_exit; 1704ccf6916cSPaolo Bonzini dc->reset = virtio_ccw_reset; 1705ccf6916cSPaolo Bonzini dc->props = vhost_ccw_scsi_properties; 1706cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1707ccf6916cSPaolo Bonzini } 1708ccf6916cSPaolo Bonzini 1709ccf6916cSPaolo Bonzini static const TypeInfo vhost_ccw_scsi = { 1710ccf6916cSPaolo Bonzini .name = TYPE_VHOST_SCSI_CCW, 1711ccf6916cSPaolo Bonzini .parent = TYPE_VIRTIO_CCW_DEVICE, 17124b7757baSCornelia Huck .instance_size = sizeof(VHostSCSICcw), 1713ccf6916cSPaolo Bonzini .instance_init = vhost_ccw_scsi_instance_init, 1714ccf6916cSPaolo Bonzini .class_init = vhost_ccw_scsi_class_init, 1715ccf6916cSPaolo Bonzini }; 1716ccf6916cSPaolo Bonzini #endif 1717ccf6916cSPaolo Bonzini 17182db26d4cSKONRAD Frederic static void virtio_ccw_rng_instance_init(Object *obj) 17192362ecc5SCornelia Huck { 17202db26d4cSKONRAD Frederic VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj); 1721c8075cafSGonglei 1722c8075cafSGonglei virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1723c8075cafSGonglei TYPE_VIRTIO_RNG); 1724cbd5ac69SPaolo Bonzini object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), 1725cbd5ac69SPaolo Bonzini "rng", &error_abort); 17262362ecc5SCornelia Huck } 17272362ecc5SCornelia Huck 17282362ecc5SCornelia Huck static Property virtio_ccw_rng_properties[] = { 17292362ecc5SCornelia Huck DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1730b4436a0bSCornelia Huck DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1731b4436a0bSCornelia Huck VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 17322362ecc5SCornelia Huck DEFINE_PROP_END_OF_LIST(), 17332362ecc5SCornelia Huck }; 17342362ecc5SCornelia Huck 17352362ecc5SCornelia Huck static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data) 17362362ecc5SCornelia Huck { 17372362ecc5SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 17382362ecc5SCornelia Huck VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 17392362ecc5SCornelia Huck 17405e5ced38SMarkus Armbruster k->realize = virtio_ccw_rng_realize; 17412db26d4cSKONRAD Frederic k->exit = virtio_ccw_exit; 17422362ecc5SCornelia Huck dc->reset = virtio_ccw_reset; 17432362ecc5SCornelia Huck dc->props = virtio_ccw_rng_properties; 1744cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_MISC, dc->categories); 17452362ecc5SCornelia Huck } 17462362ecc5SCornelia Huck 17472362ecc5SCornelia Huck static const TypeInfo virtio_ccw_rng = { 17482db26d4cSKONRAD Frederic .name = TYPE_VIRTIO_RNG_CCW, 17492362ecc5SCornelia Huck .parent = TYPE_VIRTIO_CCW_DEVICE, 17502db26d4cSKONRAD Frederic .instance_size = sizeof(VirtIORNGCcw), 17512db26d4cSKONRAD Frederic .instance_init = virtio_ccw_rng_instance_init, 17522362ecc5SCornelia Huck .class_init = virtio_ccw_rng_class_init, 17532362ecc5SCornelia Huck }; 17542362ecc5SCornelia Huck 17555e5ced38SMarkus Armbruster static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp) 1756a5cf2bb4SCornelia Huck { 1757a5cf2bb4SCornelia Huck VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1758a5cf2bb4SCornelia Huck 17591bf4d7aaSAndreas Färber virtio_ccw_bus_new(&_dev->bus, sizeof(_dev->bus), _dev); 17601fa75523SCornelia Huck virtio_ccw_device_realize(_dev, errp); 1761a5cf2bb4SCornelia Huck } 1762a5cf2bb4SCornelia Huck 1763a5cf2bb4SCornelia Huck static int virtio_ccw_busdev_exit(DeviceState *dev) 1764a5cf2bb4SCornelia Huck { 1765a5cf2bb4SCornelia Huck VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1766a5cf2bb4SCornelia Huck VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev); 1767a5cf2bb4SCornelia Huck 1768a5cf2bb4SCornelia Huck return _info->exit(_dev); 1769a5cf2bb4SCornelia Huck } 1770a5cf2bb4SCornelia Huck 1771277bc95eSIgor Mammedov static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev, 1772277bc95eSIgor Mammedov DeviceState *dev, Error **errp) 1773a5cf2bb4SCornelia Huck { 1774a5cf2bb4SCornelia Huck VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev; 1775a5cf2bb4SCornelia Huck SubchDev *sch = _dev->sch; 1776a5cf2bb4SCornelia Huck 17770b81c1efSPaolo Bonzini virtio_ccw_stop_ioeventfd(_dev); 17780b81c1efSPaolo Bonzini 1779a5cf2bb4SCornelia Huck /* 1780a5cf2bb4SCornelia Huck * We should arrive here only for device_del, since we don't support 1781a5cf2bb4SCornelia Huck * direct hot(un)plug of channels, but only through virtio. 1782a5cf2bb4SCornelia Huck */ 1783a5cf2bb4SCornelia Huck assert(sch != NULL); 1784a5cf2bb4SCornelia Huck /* Subchannel is now disabled and no longer valid. */ 1785a5cf2bb4SCornelia Huck sch->curr_status.pmcw.flags &= ~(PMCW_FLAGS_MASK_ENA | 1786a5cf2bb4SCornelia Huck PMCW_FLAGS_MASK_DNV); 1787a5cf2bb4SCornelia Huck 1788a5cf2bb4SCornelia Huck css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1, 0); 1789a5cf2bb4SCornelia Huck 179002a5c4c9SStefan Hajnoczi object_unparent(OBJECT(dev)); 1791a5cf2bb4SCornelia Huck } 1792a5cf2bb4SCornelia Huck 1793a5cf2bb4SCornelia Huck static void virtio_ccw_device_class_init(ObjectClass *klass, void *data) 1794a5cf2bb4SCornelia Huck { 1795a5cf2bb4SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1796a5cf2bb4SCornelia Huck 17975e5ced38SMarkus Armbruster dc->realize = virtio_ccw_busdev_realize; 1798a5cf2bb4SCornelia Huck dc->exit = virtio_ccw_busdev_exit; 1799a5cf2bb4SCornelia Huck dc->bus_type = TYPE_VIRTUAL_CSS_BUS; 1800a5cf2bb4SCornelia Huck } 1801a5cf2bb4SCornelia Huck 1802a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_device_info = { 1803a5cf2bb4SCornelia Huck .name = TYPE_VIRTIO_CCW_DEVICE, 1804a5cf2bb4SCornelia Huck .parent = TYPE_DEVICE, 1805a5cf2bb4SCornelia Huck .instance_size = sizeof(VirtioCcwDevice), 1806a5cf2bb4SCornelia Huck .class_init = virtio_ccw_device_class_init, 1807a5cf2bb4SCornelia Huck .class_size = sizeof(VirtIOCCWDeviceClass), 1808a5cf2bb4SCornelia Huck .abstract = true, 1809a5cf2bb4SCornelia Huck }; 1810a5cf2bb4SCornelia Huck 1811a5cf2bb4SCornelia Huck /***************** Virtual-css Bus Bridge Device ********************/ 1812a5cf2bb4SCornelia Huck /* Only required to have the virtio bus as child in the system bus */ 1813a5cf2bb4SCornelia Huck 1814a5cf2bb4SCornelia Huck static int virtual_css_bridge_init(SysBusDevice *dev) 1815a5cf2bb4SCornelia Huck { 1816a5cf2bb4SCornelia Huck /* nothing */ 1817a5cf2bb4SCornelia Huck return 0; 1818a5cf2bb4SCornelia Huck } 1819a5cf2bb4SCornelia Huck 1820a5cf2bb4SCornelia Huck static void virtual_css_bridge_class_init(ObjectClass *klass, void *data) 1821a5cf2bb4SCornelia Huck { 1822a5cf2bb4SCornelia Huck SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); 1823277bc95eSIgor Mammedov HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass); 1824cd20d616SCornelia Huck DeviceClass *dc = DEVICE_CLASS(klass); 1825a5cf2bb4SCornelia Huck 1826a5cf2bb4SCornelia Huck k->init = virtual_css_bridge_init; 1827277bc95eSIgor Mammedov hc->unplug = virtio_ccw_busdev_unplug; 1828cd20d616SCornelia Huck set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); 1829a5cf2bb4SCornelia Huck } 1830a5cf2bb4SCornelia Huck 1831a5cf2bb4SCornelia Huck static const TypeInfo virtual_css_bridge_info = { 1832a5cf2bb4SCornelia Huck .name = "virtual-css-bridge", 1833a5cf2bb4SCornelia Huck .parent = TYPE_SYS_BUS_DEVICE, 1834a5cf2bb4SCornelia Huck .instance_size = sizeof(SysBusDevice), 1835a5cf2bb4SCornelia Huck .class_init = virtual_css_bridge_class_init, 1836277bc95eSIgor Mammedov .interfaces = (InterfaceInfo[]) { 1837277bc95eSIgor Mammedov { TYPE_HOTPLUG_HANDLER }, 1838277bc95eSIgor Mammedov { } 1839277bc95eSIgor Mammedov } 1840a5cf2bb4SCornelia Huck }; 1841a5cf2bb4SCornelia Huck 1842a5cf2bb4SCornelia Huck /* virtio-ccw-bus */ 1843a5cf2bb4SCornelia Huck 18441bf4d7aaSAndreas Färber static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size, 18451bf4d7aaSAndreas Färber VirtioCcwDevice *dev) 1846a5cf2bb4SCornelia Huck { 1847a5cf2bb4SCornelia Huck DeviceState *qdev = DEVICE(dev); 1848f4dd69aaSKONRAD Frederic char virtio_bus_name[] = "virtio-bus"; 1849a5cf2bb4SCornelia Huck 1850fb17dfe0SAndreas Färber qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_CCW_BUS, 1851fb17dfe0SAndreas Färber qdev, virtio_bus_name); 1852a5cf2bb4SCornelia Huck } 1853a5cf2bb4SCornelia Huck 1854a5cf2bb4SCornelia Huck static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data) 1855a5cf2bb4SCornelia Huck { 1856a5cf2bb4SCornelia Huck VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); 1857a5cf2bb4SCornelia Huck BusClass *bus_class = BUS_CLASS(klass); 1858a5cf2bb4SCornelia Huck 1859a5cf2bb4SCornelia Huck bus_class->max_dev = 1; 1860a5cf2bb4SCornelia Huck k->notify = virtio_ccw_notify; 1861b4436a0bSCornelia Huck k->vmstate_change = virtio_ccw_vmstate_change; 1862320ce850SCornelia Huck k->query_guest_notifiers = virtio_ccw_query_guest_notifiers; 1863320ce850SCornelia Huck k->set_host_notifier = virtio_ccw_set_host_notifier; 1864320ce850SCornelia Huck k->set_guest_notifiers = virtio_ccw_set_guest_notifiers; 1865bcb2b582SJens Freimann k->save_queue = virtio_ccw_save_queue; 1866bcb2b582SJens Freimann k->load_queue = virtio_ccw_load_queue; 1867bcb2b582SJens Freimann k->save_config = virtio_ccw_save_config; 1868bcb2b582SJens Freimann k->load_config = virtio_ccw_load_config; 1869fb846a09SCornelia Huck k->device_plugged = virtio_ccw_device_plugged; 1870fb846a09SCornelia Huck k->device_unplugged = virtio_ccw_device_unplugged; 1871a5cf2bb4SCornelia Huck } 1872a5cf2bb4SCornelia Huck 1873a5cf2bb4SCornelia Huck static const TypeInfo virtio_ccw_bus_info = { 1874a5cf2bb4SCornelia Huck .name = TYPE_VIRTIO_CCW_BUS, 1875a5cf2bb4SCornelia Huck .parent = TYPE_VIRTIO_BUS, 1876a5cf2bb4SCornelia Huck .instance_size = sizeof(VirtioCcwBusState), 1877a5cf2bb4SCornelia Huck .class_init = virtio_ccw_bus_class_init, 1878a5cf2bb4SCornelia Huck }; 1879a5cf2bb4SCornelia Huck 1880de6a9218SPierre Morel #ifdef CONFIG_VIRTFS 1881de6a9218SPierre Morel static Property virtio_ccw_9p_properties[] = { 1882de6a9218SPierre Morel DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id), 1883de6a9218SPierre Morel DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags, 1884de6a9218SPierre Morel VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true), 1885de6a9218SPierre Morel DEFINE_PROP_END_OF_LIST(), 1886de6a9218SPierre Morel }; 1887de6a9218SPierre Morel 1888de6a9218SPierre Morel static void virtio_ccw_9p_realize(VirtioCcwDevice *ccw_dev, Error **errp) 1889de6a9218SPierre Morel { 1890de6a9218SPierre Morel V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev); 1891de6a9218SPierre Morel DeviceState *vdev = DEVICE(&dev->vdev); 1892de6a9218SPierre Morel Error *err = NULL; 1893de6a9218SPierre Morel 1894de6a9218SPierre Morel qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus)); 1895de6a9218SPierre Morel object_property_set_bool(OBJECT(vdev), true, "realized", &err); 1896de6a9218SPierre Morel if (err) { 1897de6a9218SPierre Morel error_propagate(errp, err); 1898de6a9218SPierre Morel } 1899de6a9218SPierre Morel } 1900de6a9218SPierre Morel 1901de6a9218SPierre Morel static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data) 1902de6a9218SPierre Morel { 1903de6a9218SPierre Morel DeviceClass *dc = DEVICE_CLASS(klass); 1904de6a9218SPierre Morel VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass); 1905de6a9218SPierre Morel 1906de6a9218SPierre Morel k->exit = virtio_ccw_exit; 1907de6a9218SPierre Morel k->realize = virtio_ccw_9p_realize; 1908de6a9218SPierre Morel dc->reset = virtio_ccw_reset; 1909de6a9218SPierre Morel dc->props = virtio_ccw_9p_properties; 1910de6a9218SPierre Morel set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 1911de6a9218SPierre Morel } 1912de6a9218SPierre Morel 1913de6a9218SPierre Morel static void virtio_ccw_9p_instance_init(Object *obj) 1914de6a9218SPierre Morel { 1915de6a9218SPierre Morel V9fsCCWState *dev = VIRTIO_9P_CCW(obj); 1916de6a9218SPierre Morel 1917de6a9218SPierre Morel virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 1918de6a9218SPierre Morel TYPE_VIRTIO_9P); 1919de6a9218SPierre Morel } 1920de6a9218SPierre Morel 1921de6a9218SPierre Morel static const TypeInfo virtio_ccw_9p_info = { 1922de6a9218SPierre Morel .name = TYPE_VIRTIO_9P_CCW, 1923de6a9218SPierre Morel .parent = TYPE_VIRTIO_CCW_DEVICE, 1924de6a9218SPierre Morel .instance_size = sizeof(V9fsCCWState), 1925de6a9218SPierre Morel .instance_init = virtio_ccw_9p_instance_init, 1926de6a9218SPierre Morel .class_init = virtio_ccw_9p_class_init, 1927de6a9218SPierre Morel }; 1928de6a9218SPierre Morel #endif 1929de6a9218SPierre Morel 1930a5cf2bb4SCornelia Huck static void virtio_ccw_register(void) 1931a5cf2bb4SCornelia Huck { 1932a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_bus_info); 1933a5cf2bb4SCornelia Huck type_register_static(&virtual_css_bus_info); 1934a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_device_info); 1935a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_serial); 1936a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_blk); 1937a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_net); 1938a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_balloon); 1939a5cf2bb4SCornelia Huck type_register_static(&virtio_ccw_scsi); 1940b702d2aeSEd Maste #ifdef CONFIG_VHOST_SCSI 1941ccf6916cSPaolo Bonzini type_register_static(&vhost_ccw_scsi); 1942b702d2aeSEd Maste #endif 19432362ecc5SCornelia Huck type_register_static(&virtio_ccw_rng); 1944a5cf2bb4SCornelia Huck type_register_static(&virtual_css_bridge_info); 1945de6a9218SPierre Morel #ifdef CONFIG_VIRTFS 1946de6a9218SPierre Morel type_register_static(&virtio_ccw_9p_info); 1947de6a9218SPierre Morel #endif 1948a5cf2bb4SCornelia Huck } 1949a5cf2bb4SCornelia Huck 1950a5cf2bb4SCornelia Huck type_init(virtio_ccw_register) 1951