diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/input/virtio-input.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/input/virtio-input.c')
-rw-r--r-- | qemu/hw/input/virtio-input.c | 343 |
1 files changed, 0 insertions, 343 deletions
diff --git a/qemu/hw/input/virtio-input.c b/qemu/hw/input/virtio-input.c deleted file mode 100644 index f59749a94..000000000 --- a/qemu/hw/input/virtio-input.c +++ /dev/null @@ -1,343 +0,0 @@ -/* - * This work is licensed under the terms of the GNU GPL, version 2 or - * (at your option) any later version. See the COPYING file in the - * top-level directory. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu/iov.h" - -#include "hw/qdev.h" -#include "hw/virtio/virtio.h" -#include "hw/virtio/virtio-input.h" - -#include "standard-headers/linux/input.h" - -#define VIRTIO_INPUT_VM_VERSION 1 - -/* ----------------------------------------------------------------- */ - -void virtio_input_send(VirtIOInput *vinput, virtio_input_event *event) -{ - VirtQueueElement *elem; - unsigned have, need; - int i, len; - - if (!vinput->active) { - return; - } - - /* queue up events ... */ - if (vinput->qindex == vinput->qsize) { - vinput->qsize++; - vinput->queue = realloc(vinput->queue, vinput->qsize * - sizeof(virtio_input_event)); - } - vinput->queue[vinput->qindex++] = *event; - - /* ... until we see a report sync ... */ - if (event->type != cpu_to_le16(EV_SYN) || - event->code != cpu_to_le16(SYN_REPORT)) { - return; - } - - /* ... then check available space ... */ - need = sizeof(virtio_input_event) * vinput->qindex; - virtqueue_get_avail_bytes(vinput->evt, &have, NULL, need, 0); - if (have < need) { - vinput->qindex = 0; - fprintf(stderr, "%s: ENOSPC in vq, dropping events\n", __func__); - return; - } - - /* ... and finally pass them to the guest */ - for (i = 0; i < vinput->qindex; i++) { - elem = virtqueue_pop(vinput->evt, sizeof(VirtQueueElement)); - if (!elem) { - /* should not happen, we've checked for space beforehand */ - fprintf(stderr, "%s: Huh? No vq elem available ...\n", __func__); - return; - } - len = iov_from_buf(elem->in_sg, elem->in_num, - 0, vinput->queue+i, sizeof(virtio_input_event)); - virtqueue_push(vinput->evt, elem, len); - g_free(elem); - } - virtio_notify(VIRTIO_DEVICE(vinput), vinput->evt); - vinput->qindex = 0; -} - -static void virtio_input_handle_evt(VirtIODevice *vdev, VirtQueue *vq) -{ - /* nothing */ -} - -static void virtio_input_handle_sts(VirtIODevice *vdev, VirtQueue *vq) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(vdev); - VirtIOInput *vinput = VIRTIO_INPUT(vdev); - virtio_input_event event; - VirtQueueElement *elem; - int len; - - for (;;) { - elem = virtqueue_pop(vinput->sts, sizeof(VirtQueueElement)); - if (!elem) { - break; - } - - memset(&event, 0, sizeof(event)); - len = iov_to_buf(elem->out_sg, elem->out_num, - 0, &event, sizeof(event)); - if (vic->handle_status) { - vic->handle_status(vinput, &event); - } - virtqueue_push(vinput->sts, elem, len); - g_free(elem); - } - virtio_notify(vdev, vinput->sts); -} - -virtio_input_config *virtio_input_find_config(VirtIOInput *vinput, - uint8_t select, - uint8_t subsel) -{ - VirtIOInputConfig *cfg; - - QTAILQ_FOREACH(cfg, &vinput->cfg_list, node) { - if (select == cfg->config.select && - subsel == cfg->config.subsel) { - return &cfg->config; - } - } - return NULL; -} - -void virtio_input_add_config(VirtIOInput *vinput, - virtio_input_config *config) -{ - VirtIOInputConfig *cfg; - - if (virtio_input_find_config(vinput, config->select, config->subsel)) { - /* should not happen */ - fprintf(stderr, "%s: duplicate config: %d/%d\n", - __func__, config->select, config->subsel); - abort(); - } - - cfg = g_new0(VirtIOInputConfig, 1); - cfg->config = *config; - QTAILQ_INSERT_TAIL(&vinput->cfg_list, cfg, node); -} - -void virtio_input_init_config(VirtIOInput *vinput, - virtio_input_config *config) -{ - int i = 0; - - QTAILQ_INIT(&vinput->cfg_list); - while (config[i].select) { - virtio_input_add_config(vinput, config + i); - i++; - } -} - -void virtio_input_idstr_config(VirtIOInput *vinput, - uint8_t select, const char *string) -{ - virtio_input_config id; - - if (!string) { - return; - } - memset(&id, 0, sizeof(id)); - id.select = select; - id.size = snprintf(id.u.string, sizeof(id.u.string), "%s", string); - virtio_input_add_config(vinput, &id); -} - -static void virtio_input_get_config(VirtIODevice *vdev, uint8_t *config_data) -{ - VirtIOInput *vinput = VIRTIO_INPUT(vdev); - virtio_input_config *config; - - config = virtio_input_find_config(vinput, vinput->cfg_select, - vinput->cfg_subsel); - if (config) { - memcpy(config_data, config, vinput->cfg_size); - } else { - memset(config_data, 0, vinput->cfg_size); - } -} - -static void virtio_input_set_config(VirtIODevice *vdev, - const uint8_t *config_data) -{ - VirtIOInput *vinput = VIRTIO_INPUT(vdev); - virtio_input_config *config = (virtio_input_config *)config_data; - - vinput->cfg_select = config->select; - vinput->cfg_subsel = config->subsel; - virtio_notify_config(vdev); -} - -static uint64_t virtio_input_get_features(VirtIODevice *vdev, uint64_t f, - Error **errp) -{ - return f; -} - -static void virtio_input_set_status(VirtIODevice *vdev, uint8_t val) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(vdev); - VirtIOInput *vinput = VIRTIO_INPUT(vdev); - - if (val & VIRTIO_CONFIG_S_DRIVER_OK) { - if (!vinput->active) { - vinput->active = true; - if (vic->change_active) { - vic->change_active(vinput); - } - } - } -} - -static void virtio_input_reset(VirtIODevice *vdev) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(vdev); - VirtIOInput *vinput = VIRTIO_INPUT(vdev); - - if (vinput->active) { - vinput->active = false; - if (vic->change_active) { - vic->change_active(vinput); - } - } -} - -static void virtio_input_save(QEMUFile *f, void *opaque) -{ - VirtIOInput *vinput = opaque; - VirtIODevice *vdev = VIRTIO_DEVICE(vinput); - - virtio_save(vdev, f); -} - -static int virtio_input_load(QEMUFile *f, void *opaque, int version_id) -{ - VirtIOInput *vinput = opaque; - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(vinput); - VirtIODevice *vdev = VIRTIO_DEVICE(vinput); - int ret; - - if (version_id != VIRTIO_INPUT_VM_VERSION) { - return -EINVAL; - } - - ret = virtio_load(vdev, f, version_id); - if (ret) { - return ret; - } - - /* post_load() */ - vinput->active = vdev->status & VIRTIO_CONFIG_S_DRIVER_OK; - if (vic->change_active) { - vic->change_active(vinput); - } - return 0; -} - -static void virtio_input_device_realize(DeviceState *dev, Error **errp) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(dev); - VirtIODevice *vdev = VIRTIO_DEVICE(dev); - VirtIOInput *vinput = VIRTIO_INPUT(dev); - VirtIOInputConfig *cfg; - Error *local_err = NULL; - - if (vic->realize) { - vic->realize(dev, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - } - - virtio_input_idstr_config(vinput, VIRTIO_INPUT_CFG_ID_SERIAL, - vinput->serial); - - QTAILQ_FOREACH(cfg, &vinput->cfg_list, node) { - if (vinput->cfg_size < cfg->config.size) { - vinput->cfg_size = cfg->config.size; - } - } - vinput->cfg_size += 8; - assert(vinput->cfg_size <= sizeof(virtio_input_config)); - - virtio_init(vdev, "virtio-input", VIRTIO_ID_INPUT, - vinput->cfg_size); - vinput->evt = virtio_add_queue(vdev, 64, virtio_input_handle_evt); - vinput->sts = virtio_add_queue(vdev, 64, virtio_input_handle_sts); - - register_savevm(dev, "virtio-input", -1, VIRTIO_INPUT_VM_VERSION, - virtio_input_save, virtio_input_load, vinput); -} - -static void virtio_input_device_unrealize(DeviceState *dev, Error **errp) -{ - VirtIOInputClass *vic = VIRTIO_INPUT_GET_CLASS(dev); - VirtIODevice *vdev = VIRTIO_DEVICE(dev); - VirtIOInput *vinput = VIRTIO_INPUT(dev); - Error *local_err = NULL; - - unregister_savevm(dev, "virtio-input", vinput); - - if (vic->unrealize) { - vic->unrealize(dev, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - } - virtio_cleanup(vdev); -} - -static Property virtio_input_properties[] = { - DEFINE_PROP_STRING("serial", VirtIOInput, serial), - DEFINE_PROP_END_OF_LIST(), -}; - -static void virtio_input_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); - - dc->props = virtio_input_properties; - set_bit(DEVICE_CATEGORY_INPUT, dc->categories); - vdc->realize = virtio_input_device_realize; - vdc->unrealize = virtio_input_device_unrealize; - vdc->get_config = virtio_input_get_config; - vdc->set_config = virtio_input_set_config; - vdc->get_features = virtio_input_get_features; - vdc->set_status = virtio_input_set_status; - vdc->reset = virtio_input_reset; -} - -static const TypeInfo virtio_input_info = { - .name = TYPE_VIRTIO_INPUT, - .parent = TYPE_VIRTIO_DEVICE, - .instance_size = sizeof(VirtIOInput), - .class_size = sizeof(VirtIOInputClass), - .class_init = virtio_input_class_init, - .abstract = true, -}; - -/* ----------------------------------------------------------------- */ - -static void virtio_register_types(void) -{ - type_register_static(&virtio_input_info); -} - -type_init(virtio_register_types) |