Send the shm for the dirty pages logging if the backend support
VHOST_USER_PROTOCOL_F_LOG_SHMFD.
Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
---
hw/virtio/vhost-user.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 4993b63..fe75618 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -26,7 +26,9 @@
#define VHOST_MEMORY_MAX_NREGIONS 8
#define VHOST_USER_F_PROTOCOL_FEATURES 30
-#define VHOST_USER_PROTOCOL_FEATURE_MASK 0x0ULL
+
+#define VHOST_USER_PROTOCOL_FEATURE_MASK 0x1ULL
+#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 0
typedef enum VhostUserRequest {
VHOST_USER_NONE = 0,
@@ -213,8 +215,15 @@ static int vhost_user_call(struct vhost_dev *dev, unsigned
long int request,
need_reply = 1;
break;
- case VHOST_USER_SET_FEATURES:
case VHOST_USER_SET_LOG_BASE:
+ if (__virtio_has_feature(dev->protocol_features,
+ VHOST_USER_PROTOCOL_F_LOG_SHMFD) &&
+ dev->log->fd != -1) {
+ fds[fd_num++] = dev->log->fd;
+ }
+ /* fall through */
+
+ case VHOST_USER_SET_FEATURES:
msg.u64 = *((__u64 *) arg);
msg.size = sizeof(m.u64);
break;
--
2.4.3
