On 06/28/2017 09:00 PM, Dr. David Alan Gilbert (git) wrote:
From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>
Tell QEMU we understand the protocol features needed for postcopy.
Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
---
contrib/libvhost-user/libvhost-user.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/contrib/libvhost-user/libvhost-user.c
b/contrib/libvhost-user/libvhost-user.c
index c1716d1a62..1c46aecfb3 100644
--- a/contrib/libvhost-user/libvhost-user.c
+++ b/contrib/libvhost-user/libvhost-user.c
@@ -797,7 +797,8 @@ vu_set_vring_err_exec(VuDev *dev, VhostUserMsg *vmsg)
static bool
vu_get_protocol_features_exec(VuDev *dev, VhostUserMsg *vmsg)
{
- uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD;
+ uint64_t features = 1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD |
+ 1ULL << VHOST_USER_PROTOCOL_F_POSTCOPY;
Maybe advertising VHOST_USER_PROTOCOL_F_POSTCOPY could be done only
if userfaultfd syscall is supported?
if (dev->iface->get_protocol_features) {
features |= dev->iface->get_protocol_features(dev);
