* directory.
*/
+#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "hw/hw.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "sysemu/sysemu.h"
+#include "sysemu/kvm.h"
#include "net/net.h"
#include "hw/virtio/virtio.h"
#include "hw/virtio/virtio-serial.h"
#include "hw/s390x/adapter.h"
#include "hw/s390x/s390_flic.h"
-#include "ioinst.h"
-#include "css.h"
+#include "hw/s390x/ioinst.h"
+#include "hw/s390x/css.h"
#include "virtio-ccw.h"
#include "trace.h"
-
-static QTAILQ_HEAD(, IndAddr) indicator_addresses =
- QTAILQ_HEAD_INITIALIZER(indicator_addresses);
-
-static IndAddr *get_indicator(hwaddr ind_addr, int len)
-{
- IndAddr *indicator;
-
- QTAILQ_FOREACH(indicator, &indicator_addresses, sibling) {
- if (indicator->addr == ind_addr) {
- indicator->refcnt++;
- return indicator;
- }
- }
- indicator = g_new0(IndAddr, 1);
- indicator->addr = ind_addr;
- indicator->len = len;
- indicator->refcnt = 1;
- QTAILQ_INSERT_TAIL(&indicator_addresses, indicator, sibling);
- return indicator;
-}
-
-static int s390_io_adapter_map(AdapterInfo *adapter, uint64_t map_addr,
- bool do_map)
-{
- S390FLICState *fs = s390_get_flic();
- S390FLICStateClass *fsc = S390_FLIC_COMMON_GET_CLASS(fs);
-
- return fsc->io_adapter_map(fs, adapter->adapter_id, map_addr, do_map);
-}
-
-static void release_indicator(AdapterInfo *adapter, IndAddr *indicator)
-{
- assert(indicator->refcnt > 0);
- indicator->refcnt--;
- if (indicator->refcnt > 0) {
- return;
- }
- QTAILQ_REMOVE(&indicator_addresses, indicator, sibling);
- if (indicator->map) {
- s390_io_adapter_map(adapter, indicator->map, false);
- }
- g_free(indicator);
-}
-
-static int map_indicator(AdapterInfo *adapter, IndAddr *indicator)
-{
- int ret;
-
- if (indicator->map) {
- return 0; /* already mapped is not an error */
- }
- indicator->map = indicator->addr;
- ret = s390_io_adapter_map(adapter, indicator->map, true);
- if ((ret != 0) && (ret != -ENOSYS)) {
- goto out_err;
- }
- return 0;
-
-out_err:
- indicator->map = 0;
- return ret;
-}
+#include "hw/s390x/css-bridge.h"
static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
VirtioCcwDevice *dev);
-static void virtual_css_bus_reset(BusState *qbus)
-{
- /* This should actually be modelled via the generic css */
- css_reset();
-}
-
-
-static void virtual_css_bus_class_init(ObjectClass *klass, void *data)
-{
- BusClass *k = BUS_CLASS(klass);
-
- k->reset = virtual_css_bus_reset;
-}
-
-static const TypeInfo virtual_css_bus_info = {
- .name = TYPE_VIRTUAL_CSS_BUS,
- .parent = TYPE_BUS,
- .instance_size = sizeof(VirtualCssBus),
- .class_init = virtual_css_bus_class_init,
-};
-
VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
{
VirtIODevice *vdev = NULL;
return vdev;
}
-static int virtio_ccw_set_guest2host_notifier(VirtioCcwDevice *dev, int n,
- bool assign, bool set_handler)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
- VirtQueue *vq = virtio_get_queue(vdev, n);
- EventNotifier *notifier = virtio_queue_get_host_notifier(vq);
- int r = 0;
- SubchDev *sch = dev->sch;
- uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
-
- if (assign) {
- r = event_notifier_init(notifier, 1);
- if (r < 0) {
- error_report("%s: unable to init event notifier: %d", __func__, r);
- return r;
- }
- virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler);
- r = s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
- if (r < 0) {
- error_report("%s: unable to assign ioeventfd: %d", __func__, r);
- virtio_queue_set_host_notifier_fd_handler(vq, false, false);
- event_notifier_cleanup(notifier);
- return r;
- }
- } else {
- virtio_queue_set_host_notifier_fd_handler(vq, false, false);
- s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
- event_notifier_cleanup(notifier);
- }
- return r;
-}
-
static void virtio_ccw_start_ioeventfd(VirtioCcwDevice *dev)
{
- VirtIODevice *vdev;
- int n, r;
-
- if (!(dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) ||
- dev->ioeventfd_disabled ||
- dev->ioeventfd_started) {
- return;
- }
- vdev = virtio_bus_get_device(&dev->bus);
- for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
- r = virtio_ccw_set_guest2host_notifier(dev, n, true, true);
- if (r < 0) {
- goto assign_error;
- }
- }
- dev->ioeventfd_started = true;
- return;
-
- assign_error:
- while (--n >= 0) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
- r = virtio_ccw_set_guest2host_notifier(dev, n, false, false);
- assert(r >= 0);
- }
- dev->ioeventfd_started = false;
- /* Disable ioeventfd for this device. */
- dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
- error_report("%s: failed. Fallback to userspace (slower).", __func__);
+ virtio_bus_start_ioeventfd(&dev->bus);
}
static void virtio_ccw_stop_ioeventfd(VirtioCcwDevice *dev)
{
- VirtIODevice *vdev;
- int n, r;
-
- if (!dev->ioeventfd_started) {
- return;
- }
- vdev = virtio_bus_get_device(&dev->bus);
- for (n = 0; n < VIRTIO_CCW_QUEUE_MAX; n++) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
- r = virtio_ccw_set_guest2host_notifier(dev, n, false, false);
- assert(r >= 0);
- }
- dev->ioeventfd_started = false;
+ virtio_bus_stop_ioeventfd(&dev->bus);
}
-VirtualCssBus *virtual_css_bus_init(void)
+static bool virtio_ccw_ioeventfd_enabled(DeviceState *d)
{
- VirtualCssBus *cbus;
- BusState *bus;
- DeviceState *dev;
-
- /* Create bridge device */
- dev = qdev_create(NULL, "virtual-css-bridge");
- qdev_init_nofail(dev);
+ VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
- /* Create bus on bridge device */
- bus = qbus_create(TYPE_VIRTUAL_CSS_BUS, dev, "virtual-css");
- cbus = VIRTUAL_CSS_BUS(bus);
+ return (dev->flags & VIRTIO_CCW_FLAG_USE_IOEVENTFD) != 0;
+}
- /* Enable hotplugging */
- qbus_set_hotplug_handler(bus, dev, &error_abort);
+static int virtio_ccw_ioeventfd_assign(DeviceState *d, EventNotifier *notifier,
+ int n, bool assign)
+{
+ VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
+ CcwDevice *ccw_dev = CCW_DEVICE(dev);
+ SubchDev *sch = ccw_dev->sch;
+ uint32_t sch_id = (css_build_subchannel_id(sch) << 16) | sch->schid;
- return cbus;
+ return s390_assign_subch_ioeventfd(notifier, sch_id, n, assign);
}
/* Communication blocks used by several channel commands. */
if (!desc) {
virtio_queue_set_vector(vdev, index, VIRTIO_NO_VECTOR);
} else {
- /* Fail if we don't have a big enough queue. */
- /* TODO: Add interface to handle vring.num changing */
- if (virtio_queue_get_num(vdev, index) > num) {
+ if (info) {
+ /* virtio-1 allows changing the ring size. */
+ if (virtio_queue_get_max_num(vdev, index) < num) {
+ /* Fail if we exceed the maximum number. */
+ return -EINVAL;
+ }
+ virtio_queue_set_num(vdev, index, num);
+ } else if (virtio_queue_get_num(vdev, index) > num) {
+ /* Fail if we don't have a big enough queue. */
return -EINVAL;
}
+ /* We ignore possible increased num for legacy for compatibility. */
virtio_queue_set_vector(vdev, index, index);
}
/* tell notify handler in case of config change */
static void virtio_ccw_reset_virtio(VirtioCcwDevice *dev, VirtIODevice *vdev)
{
+ CcwDevice *ccw_dev = CCW_DEVICE(dev);
+
virtio_ccw_stop_ioeventfd(dev);
virtio_reset(vdev);
if (dev->indicators) {
release_indicator(&dev->routes.adapter, dev->summary_indicator);
dev->summary_indicator = NULL;
}
- dev->sch->thinint_active = false;
+ ccw_dev->sch->thinint_active = false;
}
static int virtio_ccw_handle_set_vq(SubchDev *sch, CCW1 ccw, bool check_len,
ccw.cmd_code);
check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
+ if (dev->force_revision_1 && dev->revision < 0 &&
+ ccw.cmd_code != CCW_CMD_SET_VIRTIO_REV) {
+ /*
+ * virtio-1 drivers must start with negotiating to a revision >= 1,
+ * so post a command reject for all other commands
+ */
+ return -ENOSYS;
+ }
+
/* Look at the command. */
switch (ccw.cmd_code) {
case CCW_CMD_SET_VQ:
if (!ccw.cda) {
ret = -EFAULT;
} else {
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
+
features.index = address_space_ldub(&address_space_memory,
ccw.cda
+ sizeof(features.features),
MEMTXATTRS_UNSPECIFIED,
NULL);
if (features.index == 0) {
- features.features = (uint32_t)vdev->host_features;
- } else if (features.index == 1) {
- features.features = (uint32_t)(vdev->host_features >> 32);
+ if (dev->revision >= 1) {
+ /* Don't offer legacy features for modern devices. */
+ features.features = (uint32_t)
+ (vdev->host_features & ~vdc->legacy_features);
+ } else {
+ features.features = (uint32_t)vdev->host_features;
+ }
+ } else if ((features.index == 1) && (dev->revision >= 1)) {
/*
- * Don't offer version 1 to the guest if it did not
- * negotiate at least revision 1.
+ * Only offer feature bits beyond 31 if the guest has
+ * negotiated at least revision 1.
*/
- if (dev->revision <= 0) {
- features.features &= ~(1 << (VIRTIO_F_VERSION_1 - 32));
- }
+ features.features = (uint32_t)(vdev->host_features >> 32);
} else {
/* Return zeroes if the guest supports more feature bits. */
features.features = 0;
virtio_set_features(vdev,
(vdev->guest_features & 0xffffffff00000000ULL) |
features.features);
- } else if (features.index == 1) {
+ } else if ((features.index == 1) && (dev->revision >= 1)) {
/*
- * The guest should not set version 1 if it didn't
- * negotiate a revision >= 1.
+ * If the guest did not negotiate at least revision 1,
+ * we did not offer it any feature bits beyond 31. Such a
+ * guest passing us any bit here is therefore buggy.
*/
- if (dev->revision <= 0) {
- features.features &= ~(1 << (VIRTIO_F_VERSION_1 - 32));
- }
virtio_set_features(vdev,
(vdev->guest_features & 0x00000000ffffffffULL) |
((uint64_t)features.features << 32));
}
}
break;
+ case CCW_CMD_READ_STATUS:
+ if (check_len) {
+ if (ccw.count != sizeof(status)) {
+ ret = -EINVAL;
+ break;
+ }
+ } else if (ccw.count < sizeof(status)) {
+ /* Can't execute command. */
+ ret = -EINVAL;
+ break;
+ }
+ if (!ccw.cda) {
+ ret = -EFAULT;
+ } else {
+ address_space_stb(&address_space_memory, ccw.cda, vdev->status,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ sch->curr_status.scsw.count = ccw.count - sizeof(vdev->status);;
+ ret = 0;
+ }
+ break;
case CCW_CMD_WRITE_STATUS:
if (check_len) {
if (ccw.count != sizeof(status)) {
* need to fetch it here. Nothing to do for now, though.
*/
if (dev->revision >= 0 ||
- revinfo.revision > virtio_ccw_rev_max(vdev)) {
+ revinfo.revision > virtio_ccw_rev_max(dev) ||
+ (dev->force_revision_1 && !revinfo.revision)) {
ret = -ENOSYS;
break;
}
static void virtio_ccw_device_realize(VirtioCcwDevice *dev, Error **errp)
{
- unsigned int cssid = 0;
- unsigned int ssid = 0;
- unsigned int schid;
- unsigned int devno;
- bool have_devno = false;
- bool found = false;
- SubchDev *sch;
- int num;
- Error *err = NULL;
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
+ CcwDevice *ccw_dev = CCW_DEVICE(dev);
+ SubchDev *sch = css_create_virtual_sch(ccw_dev->bus_id, errp);
+ Error *err = NULL;
- sch = g_malloc0(sizeof(SubchDev));
-
- sch->driver_data = dev;
- dev->sch = sch;
-
- dev->indicators = NULL;
-
- /* Initialize subchannel structure. */
- sch->channel_prog = 0x0;
- sch->last_cmd_valid = false;
- sch->thinint_active = false;
- /*
- * Use a device number if provided. Otherwise, fall back to subchannel
- * number.
- */
- if (dev->bus_id) {
- num = sscanf(dev->bus_id, "%x.%x.%04x", &cssid, &ssid, &devno);
- if (num == 3) {
- if ((cssid > MAX_CSSID) || (ssid > MAX_SSID)) {
- error_setg(errp, "Invalid cssid or ssid: cssid %x, ssid %x",
- cssid, ssid);
- goto out_err;
- }
- /* Enforce use of virtual cssid. */
- if (cssid != VIRTUAL_CSSID) {
- error_setg(errp, "cssid %x not valid for virtio devices",
- cssid);
- goto out_err;
- }
- if (css_devno_used(cssid, ssid, devno)) {
- error_setg(errp, "Device %x.%x.%04x already exists",
- cssid, ssid, devno);
- goto out_err;
- }
- sch->cssid = cssid;
- sch->ssid = ssid;
- sch->devno = devno;
- have_devno = true;
- } else {
- error_setg(errp, "Malformed devno parameter '%s'", dev->bus_id);
- goto out_err;
- }
+ if (!sch) {
+ return;
}
-
- /* Find the next free id. */
- if (have_devno) {
- for (schid = 0; schid <= MAX_SCHID; schid++) {
- if (!css_find_subch(1, cssid, ssid, schid)) {
- sch->schid = schid;
- css_subch_assign(cssid, ssid, schid, devno, sch);
- found = true;
- break;
- }
- }
- if (!found) {
- error_setg(errp, "No free subchannel found for %x.%x.%04x",
- cssid, ssid, devno);
- goto out_err;
- }
- trace_virtio_ccw_new_device(cssid, ssid, schid, devno,
- "user-configured");
- } else {
- cssid = VIRTUAL_CSSID;
- for (ssid = 0; ssid <= MAX_SSID; ssid++) {
- for (schid = 0; schid <= MAX_SCHID; schid++) {
- if (!css_find_subch(1, cssid, ssid, schid)) {
- sch->cssid = cssid;
- sch->ssid = ssid;
- sch->schid = schid;
- devno = schid;
- /*
- * If the devno is already taken, look further in this
- * subchannel set.
- */
- while (css_devno_used(cssid, ssid, devno)) {
- if (devno == MAX_SCHID) {
- devno = 0;
- } else if (devno == schid - 1) {
- error_setg(errp, "No free devno found");
- goto out_err;
- } else {
- devno++;
- }
- }
- sch->devno = devno;
- css_subch_assign(cssid, ssid, schid, devno, sch);
- found = true;
- break;
- }
- }
- if (found) {
- break;
- }
- }
- if (!found) {
- error_setg(errp, "Virtual channel subsystem is full!");
- goto out_err;
- }
- trace_virtio_ccw_new_device(cssid, ssid, schid, devno,
- "auto-configured");
+ if (!virtio_ccw_rev_max(dev) && dev->force_revision_1) {
+ error_setg(&err, "Invalid value of property max_rev "
+ "(is %d expected >= 1)", virtio_ccw_rev_max(dev));
+ error_propagate(errp, err);
+ return;
}
- /* Build initial schib. */
- css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
-
+ sch->driver_data = dev;
sch->ccw_cb = virtio_ccw_cb;
sch->disable_cb = virtio_sch_disable_cb;
-
- /* Build senseid data. */
- memset(&sch->id, 0, sizeof(SenseId));
sch->id.reserved = 0xff;
sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
-
+ ccw_dev->sch = sch;
+ dev->indicators = NULL;
dev->revision = -1;
+ css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
+
+ trace_virtio_ccw_new_device(
+ sch->cssid, sch->ssid, sch->schid, sch->devno,
+ ccw_dev->bus_id.valid ? "user-configured" : "auto-configured");
+
+ if (!kvm_eventfds_enabled()) {
+ dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
+ }
if (k->realize) {
k->realize(dev, &err);
}
if (err) {
error_propagate(errp, err);
- css_subch_assign(cssid, ssid, schid, devno, NULL);
- goto out_err;
+ css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
+ ccw_dev->sch = NULL;
+ g_free(sch);
}
-
- return;
-
-out_err:
- dev->sch = NULL;
- g_free(sch);
}
static int virtio_ccw_exit(VirtioCcwDevice *dev)
{
- SubchDev *sch = dev->sch;
+ CcwDevice *ccw_dev = CCW_DEVICE(dev);
+ SubchDev *sch = ccw_dev->sch;
if (sch) {
css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
DeviceState *qdev = DEVICE(ccw_dev);
VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
virtio_net_set_netclient_name(&dev->vdev, qdev->id,
object_get_typename(OBJECT(qdev)));
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void virtio_ccw_net_instance_init(Object *obj)
{
VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void virtio_ccw_blk_instance_init(Object *obj)
VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
DeviceState *proxy = DEVICE(ccw_dev);
- Error *err = NULL;
char *bus_name;
/*
}
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
{
VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void virtio_ccw_balloon_instance_init(Object *obj)
VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
DeviceState *qdev = DEVICE(ccw_dev);
- Error *err = NULL;
char *bus_name;
/*
}
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void virtio_ccw_scsi_instance_init(Object *obj)
{
VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void vhost_ccw_scsi_instance_init(Object *obj)
NULL);
}
+static void virtio_ccw_crypto_realize(VirtioCcwDevice *ccw_dev, Error **errp)
+{
+ VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(ccw_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ object_property_set_link(OBJECT(vdev),
+ OBJECT(dev->vdev.conf.cryptodev), "cryptodev",
+ NULL);
+}
+
/* DeviceState to VirtioCcwDevice. Note: used on datapath,
* be careful and test performance if you change this.
*/
static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
{
- return container_of(d, VirtioCcwDevice, parent_obj);
+ CcwDevice *ccw_dev = to_ccw_dev_fast(d);
+
+ return container_of(ccw_dev, VirtioCcwDevice, parent_obj);
}
static uint8_t virtio_set_ind_atomic(SubchDev *sch, uint64_t ind_loc,
ind_old = *ind_addr;
ind_new = ind_old | to_be_set;
} while (atomic_cmpxchg(ind_addr, ind_old, ind_new) != ind_old);
+ trace_virtio_ccw_set_ind(ind_loc, ind_old, ind_new);
cpu_physical_memory_unmap(ind_addr, len, 1, len);
return ind_old;
static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
{
VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
- SubchDev *sch = dev->sch;
+ CcwDevice *ccw_dev = to_ccw_dev_fast(d);
+ SubchDev *sch = ccw_dev->sch;
uint64_t indicators;
- if (vector >= 128) {
+ /* queue indicators + secondary indicators */
+ if (vector >= VIRTIO_CCW_QUEUE_MAX + 64) {
return;
}
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
+ CcwDevice *ccw_dev = CCW_DEVICE(d);
virtio_ccw_reset_virtio(dev, vdev);
- css_reset_sch(dev->sch);
+ css_reset_sch(ccw_dev->sch);
}
static void virtio_ccw_vmstate_change(DeviceState *d, bool running)
static bool virtio_ccw_query_guest_notifiers(DeviceState *d)
{
- VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
+ CcwDevice *dev = CCW_DEVICE(d);
return !!(dev->sch->curr_status.pmcw.flags & PMCW_FLAGS_MASK_ENA);
}
-static int virtio_ccw_set_host_notifier(DeviceState *d, int n, bool assign)
-{
- VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
-
- /* Stop using the generic ioeventfd, we are doing eventfd handling
- * ourselves below */
- dev->ioeventfd_disabled = assign;
- if (assign) {
- virtio_ccw_stop_ioeventfd(dev);
- }
- return virtio_ccw_set_guest2host_notifier(dev, n, assign, false);
-}
-
static int virtio_ccw_get_mappings(VirtioCcwDevice *dev)
{
int r;
+ CcwDevice *ccw_dev = CCW_DEVICE(dev);
- if (!dev->sch->thinint_active) {
+ if (!ccw_dev->sch->thinint_active) {
return -EINVAL;
}
* We do not support individual masking for channel devices, so we
* need to manually trigger any guest masking callbacks here.
*/
- if (k->guest_notifier_mask) {
+ if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
k->guest_notifier_mask(vdev, n, false);
}
/* get lost events and re-inject */
event_notifier_set(notifier);
}
} else {
- if (k->guest_notifier_mask) {
+ if (k->guest_notifier_mask && vdev->use_guest_notifier_mask) {
k->guest_notifier_mask(vdev, n, true);
}
if (with_irqfd) {
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
- bool with_irqfd = dev->sch->thinint_active && kvm_irqfds_enabled();
+ CcwDevice *ccw_dev = CCW_DEVICE(d);
+ bool with_irqfd = ccw_dev->sch->thinint_active && kvm_irqfds_enabled();
int r, n;
if (with_irqfd && assigned) {
static void virtio_ccw_save_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
- SubchDev *s = dev->sch;
+ CcwDevice *ccw_dev = CCW_DEVICE(d);
+ SubchDev *s = ccw_dev->sch;
VirtIODevice *vdev = virtio_ccw_get_vdev(s);
subch_device_save(s, f);
static int virtio_ccw_load_config(DeviceState *d, QEMUFile *f)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
- SubchDev *s = dev->sch;
+ CcwDevice *ccw_dev = CCW_DEVICE(d);
+ SubchDev *s = ccw_dev->sch;
VirtIODevice *vdev = virtio_ccw_get_vdev(s);
int len;
qemu_get_be16s(f, &vdev->config_vector);
dev->routes.adapter.ind_offset = qemu_get_be64(f);
dev->thinint_isc = qemu_get_byte(f);
+ dev->revision = qemu_get_be32(f);
if (s->thinint_active) {
return css_register_io_adapter(CSS_IO_ADAPTER_VIRTIO,
dev->thinint_isc, true, false,
&dev->routes.adapter.adapter_id);
}
- dev->revision = qemu_get_be32(f);
return 0;
}
+static void virtio_ccw_pre_plugged(DeviceState *d, Error **errp)
+{
+ VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
+ VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
+
+ if (dev->max_rev >= 1) {
+ virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
+ }
+}
+
/* This is called by virtio-bus just after the device is plugged. */
static void virtio_ccw_device_plugged(DeviceState *d, Error **errp)
{
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
VirtIODevice *vdev = virtio_bus_get_device(&dev->bus);
- SubchDev *sch = dev->sch;
+ CcwDevice *ccw_dev = CCW_DEVICE(d);
+ SubchDev *sch = ccw_dev->sch;
int n = virtio_get_num_queues(vdev);
+ if (!virtio_has_feature(vdev->host_features, VIRTIO_F_VERSION_1)) {
+ dev->max_rev = 0;
+ }
+
if (virtio_get_num_queues(vdev) > VIRTIO_CCW_QUEUE_MAX) {
- error_setg(errp, "The nubmer of virtqueues %d "
+ error_setg(errp, "The number of virtqueues %d "
"exceeds ccw limit %d", n,
VIRTIO_CCW_QUEUE_MAX);
return;
}
- if (!kvm_eventfds_enabled()) {
- dev->flags &= ~VIRTIO_CCW_FLAG_USE_IOEVENTFD;
- }
-
sch->id.cu_model = virtio_bus_get_vdev_id(&dev->bus);
+
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
d->hotplugged, 1);
}
/**************** Virtio-ccw Bus Device Descriptions *******************/
static Property virtio_ccw_net_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
};
static Property virtio_ccw_blk_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
};
static Property virtio_ccw_serial_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
};
static Property virtio_ccw_balloon_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
};
static Property virtio_ccw_scsi_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
#ifdef CONFIG_VHOST_SCSI
static Property vhost_ccw_scsi_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
}
static Property virtio_ccw_rng_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
.class_init = virtio_ccw_rng_class_init,
};
+static Property virtio_ccw_crypto_properties[] = {
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
+ DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
+ VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_ccw_crypto_instance_init(Object *obj)
+{
+ VirtIOCryptoCcw *dev = VIRTIO_CRYPTO_CCW(obj);
+ VirtioCcwDevice *ccw_dev = VIRTIO_CCW_DEVICE(obj);
+
+ ccw_dev->force_revision_1 = true;
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VIRTIO_CRYPTO);
+
+ object_property_add_alias(obj, "cryptodev", OBJECT(&dev->vdev),
+ "cryptodev", &error_abort);
+}
+
+static void virtio_ccw_crypto_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
+
+ k->realize = virtio_ccw_crypto_realize;
+ k->exit = virtio_ccw_exit;
+ dc->reset = virtio_ccw_reset;
+ dc->props = virtio_ccw_crypto_properties;
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+}
+
+static const TypeInfo virtio_ccw_crypto = {
+ .name = TYPE_VIRTIO_CRYPTO_CCW,
+ .parent = TYPE_VIRTIO_CCW_DEVICE,
+ .instance_size = sizeof(VirtIOCryptoCcw),
+ .instance_init = virtio_ccw_crypto_instance_init,
+ .class_init = virtio_ccw_crypto_class_init,
+};
+
static void virtio_ccw_busdev_realize(DeviceState *dev, Error **errp)
{
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
static void virtio_ccw_busdev_unplug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
- VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
- SubchDev *sch = _dev->sch;
+ VirtioCcwDevice *_dev = to_virtio_ccw_dev_fast(dev);
virtio_ccw_stop_ioeventfd(_dev);
-
- /*
- * We should arrive here only for device_del, since we don't support
- * direct hot(un)plug of channels, but only through virtio.
- */
- assert(sch != NULL);
- /* Subchannel is now disabled and no longer valid. */
- sch->curr_status.pmcw.flags &= ~(PMCW_FLAGS_MASK_ENA |
- PMCW_FLAGS_MASK_DNV);
-
- css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1, 0);
-
- object_unparent(OBJECT(dev));
}
static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
+ CCWDeviceClass *k = CCW_DEVICE_CLASS(dc);
+ k->unplug = virtio_ccw_busdev_unplug;
dc->realize = virtio_ccw_busdev_realize;
dc->exit = virtio_ccw_busdev_exit;
dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
static const TypeInfo virtio_ccw_device_info = {
.name = TYPE_VIRTIO_CCW_DEVICE,
- .parent = TYPE_DEVICE,
+ .parent = TYPE_CCW_DEVICE,
.instance_size = sizeof(VirtioCcwDevice),
.class_init = virtio_ccw_device_class_init,
.class_size = sizeof(VirtIOCCWDeviceClass),
.abstract = true,
};
-/***************** Virtual-css Bus Bridge Device ********************/
-/* Only required to have the virtio bus as child in the system bus */
-
-static int virtual_css_bridge_init(SysBusDevice *dev)
-{
- /* nothing */
- return 0;
-}
-
-static void virtual_css_bridge_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
- HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- k->init = virtual_css_bridge_init;
- hc->unplug = virtio_ccw_busdev_unplug;
- set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
-}
-
-static const TypeInfo virtual_css_bridge_info = {
- .name = "virtual-css-bridge",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(SysBusDevice),
- .class_init = virtual_css_bridge_class_init,
- .interfaces = (InterfaceInfo[]) {
- { TYPE_HOTPLUG_HANDLER },
- { }
- }
-};
-
/* virtio-ccw-bus */
static void virtio_ccw_bus_new(VirtioBusState *bus, size_t bus_size,
k->notify = virtio_ccw_notify;
k->vmstate_change = virtio_ccw_vmstate_change;
k->query_guest_notifiers = virtio_ccw_query_guest_notifiers;
- k->set_host_notifier = virtio_ccw_set_host_notifier;
k->set_guest_notifiers = virtio_ccw_set_guest_notifiers;
k->save_queue = virtio_ccw_save_queue;
k->load_queue = virtio_ccw_load_queue;
k->save_config = virtio_ccw_save_config;
k->load_config = virtio_ccw_load_config;
+ k->pre_plugged = virtio_ccw_pre_plugged;
k->device_plugged = virtio_ccw_device_plugged;
k->device_unplugged = virtio_ccw_device_unplugged;
+ k->ioeventfd_enabled = virtio_ccw_ioeventfd_enabled;
+ k->ioeventfd_assign = virtio_ccw_ioeventfd_assign;
}
static const TypeInfo virtio_ccw_bus_info = {
#ifdef CONFIG_VIRTFS
static Property virtio_ccw_9p_properties[] = {
- DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
DEFINE_PROP_BIT("ioeventfd", VirtioCcwDevice, flags,
VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT, true),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
DEFINE_PROP_END_OF_LIST(),
};
{
V9fsCCWState *dev = VIRTIO_9P_CCW(ccw_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
- Error *err = NULL;
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- }
+ object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void virtio_ccw_9p_class_init(ObjectClass *klass, void *data)
};
#endif
+#ifdef CONFIG_VHOST_VSOCK
+
+static Property vhost_vsock_ccw_properties[] = {
+ DEFINE_PROP_CSS_DEV_ID("devno", VirtioCcwDevice, parent_obj.bus_id),
+ DEFINE_PROP_UINT32("max_revision", VirtioCcwDevice, max_rev,
+ VIRTIO_CCW_MAX_REV),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void vhost_vsock_ccw_realize(VirtioCcwDevice *ccw_dev, Error **errp)
+{
+ VHostVSockCCWState *dev = VHOST_VSOCK_CCW(ccw_dev);
+ DeviceState *vdev = DEVICE(&dev->vdev);
+ Error *err = NULL;
+
+ qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
+ object_property_set_bool(OBJECT(vdev), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ }
+}
+
+static void vhost_vsock_ccw_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
+
+ k->realize = vhost_vsock_ccw_realize;
+ k->exit = virtio_ccw_exit;
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+ dc->props = vhost_vsock_ccw_properties;
+ dc->reset = virtio_ccw_reset;
+}
+
+static void vhost_vsock_ccw_instance_init(Object *obj)
+{
+ VHostVSockCCWState *dev = VHOST_VSOCK_CCW(obj);
+
+ virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
+ TYPE_VHOST_VSOCK);
+}
+
+static const TypeInfo vhost_vsock_ccw_info = {
+ .name = TYPE_VHOST_VSOCK_CCW,
+ .parent = TYPE_VIRTIO_CCW_DEVICE,
+ .instance_size = sizeof(VHostVSockCCWState),
+ .instance_init = vhost_vsock_ccw_instance_init,
+ .class_init = vhost_vsock_ccw_class_init,
+};
+#endif
+
static void virtio_ccw_register(void)
{
type_register_static(&virtio_ccw_bus_info);
- type_register_static(&virtual_css_bus_info);
type_register_static(&virtio_ccw_device_info);
type_register_static(&virtio_ccw_serial);
type_register_static(&virtio_ccw_blk);
type_register_static(&vhost_ccw_scsi);
#endif
type_register_static(&virtio_ccw_rng);
- type_register_static(&virtual_css_bridge_info);
#ifdef CONFIG_VIRTFS
type_register_static(&virtio_ccw_9p_info);
#endif
+#ifdef CONFIG_VHOST_VSOCK
+ type_register_static(&vhost_vsock_ccw_info);
+#endif
+ type_register_static(&virtio_ccw_crypto);
}
type_init(virtio_ccw_register)
projects / mirror_qemu.git / blobdiff