2
* virtio ccw target implementation
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* Copyright 2012 IBM Corp.
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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#include "block/block.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/sysemu.h"
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#include "monitor/monitor.h"
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#include "hw/virtio/virtio.h"
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#include "hw/virtio/virtio-serial.h"
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#include "hw/virtio/virtio-net.h"
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#include "hw/sysbus.h"
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#include "qemu/bitops.h"
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#include "hw/virtio/virtio-bus.h"
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#include "virtio-ccw.h"
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static void virtio_ccw_bus_new(VirtioBusState *bus, VirtioCcwDevice *dev);
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static int virtual_css_bus_reset(BusState *qbus)
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/* This should actually be modelled via the generic css */
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/* we dont traverse ourself, return 0 */
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static void virtual_css_bus_class_init(ObjectClass *klass, void *data)
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BusClass *k = BUS_CLASS(klass);
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k->reset = virtual_css_bus_reset;
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static const TypeInfo virtual_css_bus_info = {
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.name = TYPE_VIRTUAL_CSS_BUS,
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.instance_size = sizeof(VirtualCssBus),
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.class_init = virtual_css_bus_class_init,
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VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch)
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VirtIODevice *vdev = NULL;
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if (sch->driver_data) {
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vdev = ((VirtioCcwDevice *)sch->driver_data)->vdev;
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VirtualCssBus *virtual_css_bus_init(void)
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/* Create bridge device */
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dev = qdev_create(NULL, "virtual-css-bridge");
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qdev_init_nofail(dev);
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/* Create bus on bridge device */
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bus = qbus_create(TYPE_VIRTUAL_CSS_BUS, dev, "virtual-css");
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cbus = VIRTUAL_CSS_BUS(bus);
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/* Enable hotplugging */
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bus->allow_hotplug = 1;
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/* Communication blocks used by several channel commands. */
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typedef struct VqInfoBlock {
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} QEMU_PACKED VqInfoBlock;
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typedef struct VqConfigBlock {
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} QEMU_PACKED VqConfigBlock;
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typedef struct VirtioFeatDesc {
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} QEMU_PACKED VirtioFeatDesc;
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/* Specify where the virtqueues for the subchannel are in guest memory. */
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static int virtio_ccw_set_vqs(SubchDev *sch, uint64_t addr, uint32_t align,
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uint16_t index, uint16_t num)
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VirtioCcwDevice *dev = sch->driver_data;
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if (index > VIRTIO_PCI_QUEUE_MAX) {
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/* Current code in virtio.c relies on 4K alignment. */
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if (addr && (align != 4096)) {
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virtio_queue_set_addr(dev->vdev, index, addr);
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virtio_queue_set_vector(dev->vdev, index, 0);
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/* Fail if we don't have a big enough queue. */
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/* TODO: Add interface to handle vring.num changing */
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if (virtio_queue_get_num(dev->vdev, index) > num) {
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virtio_queue_set_vector(dev->vdev, index, index);
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/* tell notify handler in case of config change */
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dev->vdev->config_vector = VIRTIO_PCI_QUEUE_MAX;
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static int virtio_ccw_cb(SubchDev *sch, CCW1 ccw)
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VirtioFeatDesc features;
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VqConfigBlock vq_config;
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VirtioCcwDevice *dev = sch->driver_data;
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trace_virtio_ccw_interpret_ccw(sch->cssid, sch->ssid, sch->schid,
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check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC));
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/* Look at the command. */
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switch (ccw.cmd_code) {
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if (ccw.count != sizeof(info)) {
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} else if (ccw.count < sizeof(info)) {
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/* Can't execute command. */
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info.queue = ldq_phys(ccw.cda);
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info.align = ldl_phys(ccw.cda + sizeof(info.queue));
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info.index = lduw_phys(ccw.cda + sizeof(info.queue)
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+ sizeof(info.align));
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info.num = lduw_phys(ccw.cda + sizeof(info.queue)
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+ sizeof(info.index));
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ret = virtio_ccw_set_vqs(sch, info.queue, info.align, info.index,
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sch->curr_status.scsw.count = 0;
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case CCW_CMD_VDEV_RESET:
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virtio_reset(dev->vdev);
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case CCW_CMD_READ_FEAT:
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if (ccw.count != sizeof(features)) {
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} else if (ccw.count < sizeof(features)) {
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/* Can't execute command. */
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features.index = ldub_phys(ccw.cda + sizeof(features.features));
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if (features.index < ARRAY_SIZE(dev->host_features)) {
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features.features = dev->host_features[features.index];
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/* Return zeroes if the guest supports more feature bits. */
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features.features = 0;
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stl_le_phys(ccw.cda, features.features);
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sch->curr_status.scsw.count = ccw.count - sizeof(features);
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case CCW_CMD_WRITE_FEAT:
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if (ccw.count != sizeof(features)) {
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} else if (ccw.count < sizeof(features)) {
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/* Can't execute command. */
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features.index = ldub_phys(ccw.cda + sizeof(features.features));
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features.features = ldl_le_phys(ccw.cda);
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if (features.index < ARRAY_SIZE(dev->host_features)) {
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virtio_bus_set_vdev_features(&dev->bus, features.features);
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dev->vdev->guest_features = features.features;
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* If the guest supports more feature bits, assert that it
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* passes us zeroes for those we don't support.
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if (features.features) {
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fprintf(stderr, "Guest bug: features[%i]=%x (expected 0)\n",
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features.index, features.features);
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/* XXX: do a unit check here? */
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sch->curr_status.scsw.count = ccw.count - sizeof(features);
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case CCW_CMD_READ_CONF:
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if (ccw.count > dev->vdev->config_len) {
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len = MIN(ccw.count, dev->vdev->config_len);
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virtio_bus_get_vdev_config(&dev->bus, dev->vdev->config);
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/* XXX config space endianness */
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cpu_physical_memory_write(ccw.cda, dev->vdev->config, len);
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sch->curr_status.scsw.count = ccw.count - len;
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case CCW_CMD_WRITE_CONF:
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if (ccw.count > dev->vdev->config_len) {
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len = MIN(ccw.count, dev->vdev->config_len);
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config = cpu_physical_memory_map(ccw.cda, &hw_len, 0);
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/* XXX config space endianness */
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memcpy(dev->vdev->config, config, len);
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cpu_physical_memory_unmap(config, hw_len, 0, hw_len);
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virtio_bus_set_vdev_config(&dev->bus, dev->vdev->config);
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sch->curr_status.scsw.count = ccw.count - len;
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case CCW_CMD_WRITE_STATUS:
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if (ccw.count != sizeof(status)) {
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} else if (ccw.count < sizeof(status)) {
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/* Can't execute command. */
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status = ldub_phys(ccw.cda);
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virtio_set_status(dev->vdev, status);
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if (dev->vdev->status == 0) {
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virtio_reset(dev->vdev);
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sch->curr_status.scsw.count = ccw.count - sizeof(status);
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case CCW_CMD_SET_IND:
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if (ccw.count != sizeof(indicators)) {
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} else if (ccw.count < sizeof(indicators)) {
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/* Can't execute command. */
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indicators = ldq_phys(ccw.cda);
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dev->indicators = indicators;
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sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
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case CCW_CMD_SET_CONF_IND:
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if (ccw.count != sizeof(indicators)) {
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} else if (ccw.count < sizeof(indicators)) {
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/* Can't execute command. */
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indicators = ldq_phys(ccw.cda);
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dev->indicators2 = indicators;
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sch->curr_status.scsw.count = ccw.count - sizeof(indicators);
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case CCW_CMD_READ_VQ_CONF:
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if (ccw.count != sizeof(vq_config)) {
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} else if (ccw.count < sizeof(vq_config)) {
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/* Can't execute command. */
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vq_config.index = lduw_phys(ccw.cda);
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vq_config.num_max = virtio_queue_get_num(dev->vdev,
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stw_phys(ccw.cda + sizeof(vq_config.index), vq_config.num_max);
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sch->curr_status.scsw.count = ccw.count - sizeof(vq_config);
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static int virtio_ccw_device_init(VirtioCcwDevice *dev, VirtIODevice *vdev)
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unsigned int cssid = 0;
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unsigned int ssid = 0;
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bool have_devno = false;
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DeviceState *parent = DEVICE(dev);
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sch = g_malloc0(sizeof(SubchDev));
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sch->driver_data = dev;
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/* Initialize subchannel structure. */
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sch->channel_prog = 0x0;
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sch->last_cmd_valid = false;
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* Use a device number if provided. Otherwise, fall back to subchannel
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num = sscanf(dev->bus_id, "%x.%x.%04x", &cssid, &ssid, &devno);
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if ((cssid > MAX_CSSID) || (ssid > MAX_SSID)) {
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error_report("Invalid cssid or ssid: cssid %x, ssid %x",
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/* Enforce use of virtual cssid. */
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if (cssid != VIRTUAL_CSSID) {
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error_report("cssid %x not valid for virtio devices", cssid);
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if (css_devno_used(cssid, ssid, devno)) {
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error_report("Device %x.%x.%04x already exists", cssid, ssid,
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error_report("Malformed devno parameter '%s'", dev->bus_id);
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/* Find the next free id. */
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for (schid = 0; schid <= MAX_SCHID; schid++) {
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if (!css_find_subch(1, cssid, ssid, schid)) {
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css_subch_assign(cssid, ssid, schid, devno, sch);
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error_report("No free subchannel found for %x.%x.%04x", cssid, ssid,
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trace_virtio_ccw_new_device(cssid, ssid, schid, devno,
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cssid = VIRTUAL_CSSID;
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for (ssid = 0; ssid <= MAX_SSID; ssid++) {
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for (schid = 0; schid <= MAX_SCHID; schid++) {
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if (!css_find_subch(1, cssid, ssid, schid)) {
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* If the devno is already taken, look further in this
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while (css_devno_used(cssid, ssid, devno)) {
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if (devno == MAX_SCHID) {
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} else if (devno == schid - 1) {
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error_report("No free devno found");
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css_subch_assign(cssid, ssid, schid, devno, sch);
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error_report("Virtual channel subsystem is full!");
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trace_virtio_ccw_new_device(cssid, ssid, schid, devno,
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/* Build initial schib. */
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css_sch_build_virtual_schib(sch, 0, VIRTIO_CCW_CHPID_TYPE);
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sch->ccw_cb = virtio_ccw_cb;
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/* Build senseid data. */
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memset(&sch->id, 0, sizeof(SenseId));
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sch->id.reserved = 0xff;
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sch->id.cu_type = VIRTIO_CCW_CU_TYPE;
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sch->id.cu_model = dev->vdev->device_id;
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/* Only the first 32 feature bits are used. */
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dev->host_features[0] = virtio_bus_get_vdev_features(&dev->bus,
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dev->host_features[0]);
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dev->host_features[0] |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY;
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dev->host_features[0] |= 0x1 << VIRTIO_F_BAD_FEATURE;
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css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid,
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parent->hotplugged, 1);
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static int virtio_ccw_exit(VirtioCcwDevice *dev)
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SubchDev *sch = dev->sch;
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css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);
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static int virtio_ccw_net_init(VirtioCcwDevice *ccw_dev)
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DeviceState *qdev = DEVICE(ccw_dev);
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VirtIONetCcw *dev = VIRTIO_NET_CCW(ccw_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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virtio_net_set_config_size(&dev->vdev, ccw_dev->host_features[0]);
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virtio_net_set_netclient_name(&dev->vdev, qdev->id,
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object_get_typename(OBJECT(qdev)));
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qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
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if (qdev_init(vdev) < 0) {
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return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
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static void virtio_ccw_net_instance_init(Object *obj)
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VirtIONetCcw *dev = VIRTIO_NET_CCW(obj);
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object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_NET);
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object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
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static int virtio_ccw_blk_init(VirtioCcwDevice *ccw_dev)
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VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(ccw_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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virtio_blk_set_conf(vdev, &(dev->blk));
580
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
581
if (qdev_init(vdev) < 0) {
585
return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
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static void virtio_ccw_blk_instance_init(Object *obj)
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VirtIOBlkCcw *dev = VIRTIO_BLK_CCW(obj);
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object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BLK);
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object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
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static int virtio_ccw_serial_init(VirtioCcwDevice *ccw_dev)
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VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(ccw_dev);
598
DeviceState *vdev = DEVICE(&dev->vdev);
599
DeviceState *proxy = DEVICE(ccw_dev);
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* For command line compatibility, this sets the virtio-serial-device bus
607
bus_name = g_strdup_printf("%s.0", proxy->id);
608
virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
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qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
613
if (qdev_init(vdev) < 0) {
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return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
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static void virtio_ccw_serial_instance_init(Object *obj)
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VirtioSerialCcw *dev = VIRTIO_SERIAL_CCW(obj);
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object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SERIAL);
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object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
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static int virtio_ccw_balloon_init(VirtioCcwDevice *ccw_dev)
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VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(ccw_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
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if (qdev_init(vdev) < 0) {
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return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
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static void balloon_ccw_stats_get_all(Object *obj, struct Visitor *v,
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void *opaque, const char *name,
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VirtIOBalloonCcw *dev = opaque;
646
object_property_get(OBJECT(&dev->vdev), v, "guest-stats", errp);
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static void balloon_ccw_stats_get_poll_interval(Object *obj, struct Visitor *v,
650
void *opaque, const char *name,
653
VirtIOBalloonCcw *dev = opaque;
654
object_property_get(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
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static void balloon_ccw_stats_set_poll_interval(Object *obj, struct Visitor *v,
659
void *opaque, const char *name,
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VirtIOBalloonCcw *dev = opaque;
663
object_property_set(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
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static void virtio_ccw_balloon_instance_init(Object *obj)
669
VirtIOBalloonCcw *dev = VIRTIO_BALLOON_CCW(obj);
670
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BALLOON);
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object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
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object_property_add(obj, "guest-stats", "guest statistics",
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balloon_ccw_stats_get_all, NULL, NULL, dev, NULL);
676
object_property_add(obj, "guest-stats-polling-interval", "int",
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balloon_ccw_stats_get_poll_interval,
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balloon_ccw_stats_set_poll_interval,
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static int virtio_ccw_scsi_init(VirtioCcwDevice *ccw_dev)
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VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(ccw_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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DeviceState *qdev = DEVICE(ccw_dev);
690
* For command line compatibility, this sets the virtio-scsi-device bus
694
bus_name = g_strdup_printf("%s.0", qdev->id);
695
virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
699
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
700
if (qdev_init(vdev) < 0) {
704
return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
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static void virtio_ccw_scsi_instance_init(Object *obj)
709
VirtIOSCSICcw *dev = VIRTIO_SCSI_CCW(obj);
710
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SCSI);
711
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
714
#ifdef CONFIG_VHOST_SCSI
715
static int vhost_ccw_scsi_init(VirtioCcwDevice *ccw_dev)
717
VHostSCSICcw *dev = VHOST_SCSI_CCW(ccw_dev);
718
DeviceState *vdev = DEVICE(&dev->vdev);
720
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
721
if (qdev_init(vdev) < 0) {
725
return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
728
static void vhost_ccw_scsi_instance_init(Object *obj)
730
VHostSCSICcw *dev = VHOST_SCSI_CCW(obj);
731
object_initialize(OBJECT(&dev->vdev), TYPE_VHOST_SCSI);
732
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
736
static int virtio_ccw_rng_init(VirtioCcwDevice *ccw_dev)
738
VirtIORNGCcw *dev = VIRTIO_RNG_CCW(ccw_dev);
739
DeviceState *vdev = DEVICE(&dev->vdev);
741
qdev_set_parent_bus(vdev, BUS(&ccw_dev->bus));
742
if (qdev_init(vdev) < 0) {
746
object_property_set_link(OBJECT(dev),
747
OBJECT(dev->vdev.conf.default_backend), "rng",
750
return virtio_ccw_device_init(ccw_dev, VIRTIO_DEVICE(vdev));
753
/* DeviceState to VirtioCcwDevice. Note: used on datapath,
754
* be careful and test performance if you change this.
756
static inline VirtioCcwDevice *to_virtio_ccw_dev_fast(DeviceState *d)
758
return container_of(d, VirtioCcwDevice, parent_obj);
761
static void virtio_ccw_notify(DeviceState *d, uint16_t vector)
763
VirtioCcwDevice *dev = to_virtio_ccw_dev_fast(d);
764
SubchDev *sch = dev->sch;
771
if (vector < VIRTIO_PCI_QUEUE_MAX) {
772
if (!dev->indicators) {
775
indicators = ldq_phys(dev->indicators);
776
indicators |= 1ULL << vector;
777
stq_phys(dev->indicators, indicators);
779
if (!dev->indicators2) {
783
indicators = ldq_phys(dev->indicators2);
784
indicators |= 1ULL << vector;
785
stq_phys(dev->indicators2, indicators);
788
css_conditional_io_interrupt(sch);
792
static unsigned virtio_ccw_get_features(DeviceState *d)
794
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
796
/* Only the first 32 feature bits are used. */
797
return dev->host_features[0];
800
static void virtio_ccw_reset(DeviceState *d)
802
VirtioCcwDevice *dev = VIRTIO_CCW_DEVICE(d);
804
virtio_reset(dev->vdev);
805
css_reset_sch(dev->sch);
808
/**************** Virtio-ccw Bus Device Descriptions *******************/
810
static Property virtio_ccw_net_properties[] = {
811
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
812
DEFINE_VIRTIO_NET_FEATURES(VirtioCcwDevice, host_features[0]),
813
DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetCcw, vdev.net_conf),
814
DEFINE_NIC_PROPERTIES(VirtIONetCcw, vdev.nic_conf),
815
DEFINE_PROP_END_OF_LIST(),
818
static void virtio_ccw_net_class_init(ObjectClass *klass, void *data)
820
DeviceClass *dc = DEVICE_CLASS(klass);
821
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
823
k->init = virtio_ccw_net_init;
824
k->exit = virtio_ccw_exit;
825
dc->reset = virtio_ccw_reset;
826
dc->props = virtio_ccw_net_properties;
829
static const TypeInfo virtio_ccw_net = {
830
.name = TYPE_VIRTIO_NET_CCW,
831
.parent = TYPE_VIRTIO_CCW_DEVICE,
832
.instance_size = sizeof(VirtIONetCcw),
833
.instance_init = virtio_ccw_net_instance_init,
834
.class_init = virtio_ccw_net_class_init,
837
static Property virtio_ccw_blk_properties[] = {
838
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
839
DEFINE_VIRTIO_BLK_FEATURES(VirtioCcwDevice, host_features[0]),
840
DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkCcw, blk),
841
DEFINE_PROP_END_OF_LIST(),
844
static void virtio_ccw_blk_class_init(ObjectClass *klass, void *data)
846
DeviceClass *dc = DEVICE_CLASS(klass);
847
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
849
k->init = virtio_ccw_blk_init;
850
k->exit = virtio_ccw_exit;
851
dc->reset = virtio_ccw_reset;
852
dc->props = virtio_ccw_blk_properties;
855
static const TypeInfo virtio_ccw_blk = {
856
.name = TYPE_VIRTIO_BLK_CCW,
857
.parent = TYPE_VIRTIO_CCW_DEVICE,
858
.instance_size = sizeof(VirtIOBlkCcw),
859
.instance_init = virtio_ccw_blk_instance_init,
860
.class_init = virtio_ccw_blk_class_init,
863
static Property virtio_ccw_serial_properties[] = {
864
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
865
DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtioSerialCcw, vdev.serial),
866
DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
867
DEFINE_PROP_END_OF_LIST(),
870
static void virtio_ccw_serial_class_init(ObjectClass *klass, void *data)
872
DeviceClass *dc = DEVICE_CLASS(klass);
873
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
875
k->init = virtio_ccw_serial_init;
876
k->exit = virtio_ccw_exit;
877
dc->reset = virtio_ccw_reset;
878
dc->props = virtio_ccw_serial_properties;
881
static const TypeInfo virtio_ccw_serial = {
882
.name = TYPE_VIRTIO_SERIAL_CCW,
883
.parent = TYPE_VIRTIO_CCW_DEVICE,
884
.instance_size = sizeof(VirtioSerialCcw),
885
.instance_init = virtio_ccw_serial_instance_init,
886
.class_init = virtio_ccw_serial_class_init,
889
static Property virtio_ccw_balloon_properties[] = {
890
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
891
DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
892
DEFINE_PROP_END_OF_LIST(),
895
static void virtio_ccw_balloon_class_init(ObjectClass *klass, void *data)
897
DeviceClass *dc = DEVICE_CLASS(klass);
898
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
900
k->init = virtio_ccw_balloon_init;
901
k->exit = virtio_ccw_exit;
902
dc->reset = virtio_ccw_reset;
903
dc->props = virtio_ccw_balloon_properties;
906
static const TypeInfo virtio_ccw_balloon = {
907
.name = TYPE_VIRTIO_BALLOON_CCW,
908
.parent = TYPE_VIRTIO_CCW_DEVICE,
909
.instance_size = sizeof(VirtIOBalloonCcw),
910
.instance_init = virtio_ccw_balloon_instance_init,
911
.class_init = virtio_ccw_balloon_class_init,
914
static Property virtio_ccw_scsi_properties[] = {
915
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
916
DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSICcw, vdev.parent_obj.conf),
917
DEFINE_VIRTIO_SCSI_FEATURES(VirtioCcwDevice, host_features[0]),
918
DEFINE_PROP_END_OF_LIST(),
921
static void virtio_ccw_scsi_class_init(ObjectClass *klass, void *data)
923
DeviceClass *dc = DEVICE_CLASS(klass);
924
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
926
k->init = virtio_ccw_scsi_init;
927
k->exit = virtio_ccw_exit;
928
dc->reset = virtio_ccw_reset;
929
dc->props = virtio_ccw_scsi_properties;
932
static const TypeInfo virtio_ccw_scsi = {
933
.name = TYPE_VIRTIO_SCSI_CCW,
934
.parent = TYPE_VIRTIO_CCW_DEVICE,
935
.instance_size = sizeof(VirtIOSCSICcw),
936
.instance_init = virtio_ccw_scsi_instance_init,
937
.class_init = virtio_ccw_scsi_class_init,
940
#ifdef CONFIG_VHOST_SCSI
941
static Property vhost_ccw_scsi_properties[] = {
942
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
943
DEFINE_VHOST_SCSI_PROPERTIES(VirtIOSCSICcw, vdev.parent_obj.conf),
944
DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
945
DEFINE_PROP_END_OF_LIST(),
948
static void vhost_ccw_scsi_class_init(ObjectClass *klass, void *data)
950
DeviceClass *dc = DEVICE_CLASS(klass);
951
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
953
k->init = vhost_ccw_scsi_init;
954
k->exit = virtio_ccw_exit;
955
dc->reset = virtio_ccw_reset;
956
dc->props = vhost_ccw_scsi_properties;
959
static const TypeInfo vhost_ccw_scsi = {
960
.name = TYPE_VHOST_SCSI_CCW,
961
.parent = TYPE_VIRTIO_CCW_DEVICE,
962
.instance_size = sizeof(VirtIOSCSICcw),
963
.instance_init = vhost_ccw_scsi_instance_init,
964
.class_init = vhost_ccw_scsi_class_init,
968
static void virtio_ccw_rng_instance_init(Object *obj)
970
VirtIORNGCcw *dev = VIRTIO_RNG_CCW(obj);
971
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_RNG);
972
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
973
object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
974
(Object **)&dev->vdev.conf.rng, NULL);
977
static Property virtio_ccw_rng_properties[] = {
978
DEFINE_PROP_STRING("devno", VirtioCcwDevice, bus_id),
979
DEFINE_VIRTIO_COMMON_FEATURES(VirtioCcwDevice, host_features[0]),
980
DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORNGCcw, vdev.conf),
981
DEFINE_PROP_END_OF_LIST(),
984
static void virtio_ccw_rng_class_init(ObjectClass *klass, void *data)
986
DeviceClass *dc = DEVICE_CLASS(klass);
987
VirtIOCCWDeviceClass *k = VIRTIO_CCW_DEVICE_CLASS(klass);
989
k->init = virtio_ccw_rng_init;
990
k->exit = virtio_ccw_exit;
991
dc->reset = virtio_ccw_reset;
992
dc->props = virtio_ccw_rng_properties;
995
static const TypeInfo virtio_ccw_rng = {
996
.name = TYPE_VIRTIO_RNG_CCW,
997
.parent = TYPE_VIRTIO_CCW_DEVICE,
998
.instance_size = sizeof(VirtIORNGCcw),
999
.instance_init = virtio_ccw_rng_instance_init,
1000
.class_init = virtio_ccw_rng_class_init,
1003
static int virtio_ccw_busdev_init(DeviceState *dev)
1005
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1006
VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1008
virtio_ccw_bus_new(&_dev->bus, _dev);
1010
return _info->init(_dev);
1013
static int virtio_ccw_busdev_exit(DeviceState *dev)
1015
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1016
VirtIOCCWDeviceClass *_info = VIRTIO_CCW_DEVICE_GET_CLASS(dev);
1018
return _info->exit(_dev);
1021
static int virtio_ccw_busdev_unplug(DeviceState *dev)
1023
VirtioCcwDevice *_dev = (VirtioCcwDevice *)dev;
1024
SubchDev *sch = _dev->sch;
1027
* We should arrive here only for device_del, since we don't support
1028
* direct hot(un)plug of channels, but only through virtio.
1030
assert(sch != NULL);
1031
/* Subchannel is now disabled and no longer valid. */
1032
sch->curr_status.pmcw.flags &= ~(PMCW_FLAGS_MASK_ENA |
1033
PMCW_FLAGS_MASK_DNV);
1035
css_generate_sch_crws(sch->cssid, sch->ssid, sch->schid, 1, 0);
1041
static void virtio_ccw_device_class_init(ObjectClass *klass, void *data)
1043
DeviceClass *dc = DEVICE_CLASS(klass);
1045
dc->init = virtio_ccw_busdev_init;
1046
dc->exit = virtio_ccw_busdev_exit;
1047
dc->unplug = virtio_ccw_busdev_unplug;
1048
dc->bus_type = TYPE_VIRTUAL_CSS_BUS;
1052
static const TypeInfo virtio_ccw_device_info = {
1053
.name = TYPE_VIRTIO_CCW_DEVICE,
1054
.parent = TYPE_DEVICE,
1055
.instance_size = sizeof(VirtioCcwDevice),
1056
.class_init = virtio_ccw_device_class_init,
1057
.class_size = sizeof(VirtIOCCWDeviceClass),
1061
/***************** Virtual-css Bus Bridge Device ********************/
1062
/* Only required to have the virtio bus as child in the system bus */
1064
static int virtual_css_bridge_init(SysBusDevice *dev)
1070
static void virtual_css_bridge_class_init(ObjectClass *klass, void *data)
1072
DeviceClass *dc = DEVICE_CLASS(klass);
1073
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
1075
k->init = virtual_css_bridge_init;
1079
static const TypeInfo virtual_css_bridge_info = {
1080
.name = "virtual-css-bridge",
1081
.parent = TYPE_SYS_BUS_DEVICE,
1082
.instance_size = sizeof(SysBusDevice),
1083
.class_init = virtual_css_bridge_class_init,
1086
/* virtio-ccw-bus */
1088
static void virtio_ccw_bus_new(VirtioBusState *bus, VirtioCcwDevice *dev)
1090
DeviceState *qdev = DEVICE(dev);
1092
char virtio_bus_name[] = "virtio-bus";
1094
qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_CCW_BUS, qdev,
1097
qbus->allow_hotplug = 1;
1100
static void virtio_ccw_bus_class_init(ObjectClass *klass, void *data)
1102
VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
1103
BusClass *bus_class = BUS_CLASS(klass);
1105
bus_class->max_dev = 1;
1106
k->notify = virtio_ccw_notify;
1107
k->get_features = virtio_ccw_get_features;
1110
static const TypeInfo virtio_ccw_bus_info = {
1111
.name = TYPE_VIRTIO_CCW_BUS,
1112
.parent = TYPE_VIRTIO_BUS,
1113
.instance_size = sizeof(VirtioCcwBusState),
1114
.class_init = virtio_ccw_bus_class_init,
1117
static void virtio_ccw_register(void)
1119
type_register_static(&virtio_ccw_bus_info);
1120
type_register_static(&virtual_css_bus_info);
1121
type_register_static(&virtio_ccw_device_info);
1122
type_register_static(&virtio_ccw_serial);
1123
type_register_static(&virtio_ccw_blk);
1124
type_register_static(&virtio_ccw_net);
1125
type_register_static(&virtio_ccw_balloon);
1126
type_register_static(&virtio_ccw_scsi);
1127
#ifdef CONFIG_VHOST_SCSI
1128
type_register_static(&vhost_ccw_scsi);
1130
type_register_static(&virtio_ccw_rng);
1131
type_register_static(&virtual_css_bridge_info);
1134
type_init(virtio_ccw_register)