currently, each virtio device has their own virtio_ops implementation.
Take virtio-blk for example:
static struct virtio_ops virtio_blk_ops = {
"virtio_blk",
1,
sizeof(struct virtio_blk_config),
virtio_blk_reset,
virtio_blk_notify,
virtio_blk_cfgread,
virtio_blk_cfgwrite,
NULL,
NULL,
VIRTIO_BLK_S_HOSTCAPS,
};
If start DM with two virtio-blk, this global variable will be
assigined to two virtio-blk instances. Changing hv_caps for one
instance will affect others. But different instances may need
different capabilities.
To support this requirement, we suggest to move hv_caps to
virtio_base structure, and each instance can return their own
capabilities.
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
All related resources are freed in virtio_input_deinit.
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The implementation of virtio_input_get_config is based on ioctl of
evdev fd. The following properties of input device are got by ioctl
to service configuation request from FE driver:
- name and devids
- propbit
- evbit: keybit/relbit/absbit/mscbit/swbit
- absbit
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Input events are read from host evdev fd and cached into a local queue.
When SYN_REPORT is read, the cached input events are sent to guest via
EVENT virtqueue. Guest input events are read from STATUS virtqueue then
written to host evdev fd.
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch implements the callbacks required by virtio_input_ops:
reset/cfgread/cfgwrite/apply_features/set_status.
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
The following are done in virtio_input_init:
- parse the command line to get the path of host evdev
- parse the command line to get the optional serial string
- calloc struct virtio_input and initialize it
- call virtio framework APIs to initialize virtio PCI
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This patch adds the data structures and macros used to implement
virtio-input.
Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com>
Reviewed-by: Hao Li <hao.l.li@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
