[PATCH 6/9] vhost-user: Report to front-end we support VHOST_USER_PROTOCOL_F_LOG_SHMFD

[Laurent Vivier <lvivier@redhat.com>]

This features allows QEMU to be migrated. We need also to report
VHOST_F_LOG_ALL.

This protocol feature reports we can log the page update and
implement VHOST_USER_SET_LOG_BASE and VHOST_USER_SET_LOG_FD.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
 vhost_user.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vhost_user.c b/vhost_user.c
index c2fac58badf1..3264949e349e 100644
--- a/vhost_user.c
+++ b/vhost_user.c
@@ -334,6 +334,7 @@ static bool vu_get_features_exec(struct vu_dev *vdev,
 	uint64_t features =
 		1ULL << VIRTIO_F_VERSION_1 |
 		1ULL << VIRTIO_NET_F_MRG_RXBUF |
+		1ULL << VHOST_F_LOG_ALL |
 		1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
 
 	(void)vdev;
@@ -912,7 +913,8 @@ static bool vu_set_vring_err_exec(struct vu_dev *vdev,
 static bool vu_get_protocol_features_exec(struct vu_dev *vdev,
 					  struct vhost_user_msg *msg)
 {
-	uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK;
+	uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK |
+			    1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
 
 	(void)vdev;
 	vmsg_set_reply_u64(msg, features);
-- 
@@ -334,6 +334,7 @@ static bool vu_get_features_exec(struct vu_dev *vdev,
 	uint64_t features =
 		1ULL << VIRTIO_F_VERSION_1 |
 		1ULL << VIRTIO_NET_F_MRG_RXBUF |
+		1ULL << VHOST_F_LOG_ALL |
 		1ULL << VHOST_USER_F_PROTOCOL_FEATURES;
 
 	(void)vdev;
@@ -912,7 +913,8 @@ static bool vu_set_vring_err_exec(struct vu_dev *vdev,
 static bool vu_get_protocol_features_exec(struct vu_dev *vdev,
 					  struct vhost_user_msg *msg)
 {
-	uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK;
+	uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK |
+			    1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
 
 	(void)vdev;
 	vmsg_set_reply_u64(msg, features);
-- 
2.47.1