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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2022-02-10 16:34:02 +0530 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-03-04 08:30:52 -0500 |
| commit | 0a24dd1fd50582cfbcac191cd24ccad48f6d2478 (patch) | |
| tree | c1d55c6c106a192d059d0d32ded512450d8774e1 /hw/virtio | |
| parent | e65902a913bf31ba79a83a3bd3621108b85cf645 (diff) | |
| download | qemu-0a24dd1fd50582cfbcac191cd24ccad48f6d2478.zip qemu-0a24dd1fd50582cfbcac191cd24ccad48f6d2478.tar.gz qemu-0a24dd1fd50582cfbcac191cd24ccad48f6d2478.tar.bz2 | |
hw/vhost-user-i2c: Add support for VIRTIO_I2C_F_ZERO_LENGTH_REQUEST
VIRTIO_I2C_F_ZERO_LENGTH_REQUEST is a mandatory feature, that must be
implemented by everyone. Add its support.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Message-Id: <fc47ab63b1cd414319c9201e8d6c7705b5ec3bd9.1644490993.git.viresh.kumar@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/vhost-user-i2c.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/virtio/vhost-user-i2c.c b/hw/virtio/vhost-user-i2c.c index d172632..42c7f6d 100644 --- a/hw/virtio/vhost-user-i2c.c +++ b/hw/virtio/vhost-user-i2c.c @@ -19,6 +19,11 @@ #define VIRTIO_ID_I2C_ADAPTER 34 #endif +static const int feature_bits[] = { + VIRTIO_I2C_F_ZERO_LENGTH_REQUEST, + VHOST_INVALID_FEATURE_BIT +}; + static void vu_i2c_start(VirtIODevice *vdev) { BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev))); @@ -113,8 +118,10 @@ static void vu_i2c_set_status(VirtIODevice *vdev, uint8_t status) static uint64_t vu_i2c_get_features(VirtIODevice *vdev, uint64_t requested_features, Error **errp) { - /* No feature bits used yet */ - return requested_features; + VHostUserI2C *i2c = VHOST_USER_I2C(vdev); + + virtio_add_feature(&requested_features, VIRTIO_I2C_F_ZERO_LENGTH_REQUEST); + return vhost_get_features(&i2c->vhost_dev, feature_bits, requested_features); } static void vu_i2c_handle_output(VirtIODevice *vdev, VirtQueue *vq) |