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charset="utf-8" This is an opt-in feature not enabled by default. Enable it in protocol features by setting VHOST_USER_PROTOCOL_F_SLAVE_CH_START_STOP. Signed-off-by: Vivek Goyal --- tools/virtiofsd/fuse_virtio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c index 6805d8ba01..9328c8fac6 100644 --- a/tools/virtiofsd/fuse_virtio.c +++ b/tools/virtiofsd/fuse_virtio.c @@ -103,6 +103,11 @@ static void fv_set_features(VuDev *dev, uint64_t featu= res) { } =20 +static uint64_t fv_get_protocol_features(VuDev *dev) +{ + return 1ULL << VHOST_USER_PROTOCOL_F_SLAVE_CH_START_STOP; +} + /* * Callback from libvhost-user if there's a new fd we're supposed to listen * to, typically a queue kick? @@ -902,6 +907,7 @@ static const VuDevIface fv_iface =3D { .get_features =3D fv_get_features, .set_features =3D fv_set_features, =20 + .get_protocol_features =3D fv_get_protocol_features, /* Don't need process message, we've not got any at vhost-user level */ .queue_set_started =3D fv_queue_set_started, =20 --=20 2.25.4