diff options
| author | Dr. David Alan Gilbert | 2018-03-12 18:21:01 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2018-03-20 04:03:27 +0100 |
| commit | d3dff7a5a1e0a6eff963fabc4d06879d060f34ee (patch) | |
| tree | 6b9d1461eedf9181a91914876e4a8df0439fdba6 /docs/interop | |
| parent | postcopy: Add vhost-user flag for postcopy and check it (diff) | |
| download | qemu-d3dff7a5a1e0a6eff963fabc4d06879d060f34ee.tar.gz qemu-d3dff7a5a1e0a6eff963fabc4d06879d060f34ee.tar.xz qemu-d3dff7a5a1e0a6eff963fabc4d06879d060f34ee.zip | |
vhost-user: Add 'VHOST_USER_POSTCOPY_ADVISE' message
Wire up a notifier to send a VHOST_USER_POSTCOPY_ADVISE
message on an incoming advise.
Later patches will fill in the behaviour/contents of the
message.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'docs/interop')
| -rw-r--r-- | docs/interop/vhost-user.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/interop/vhost-user.txt b/docs/interop/vhost-user.txt index 91a572d781..7854e50008 100644 --- a/docs/interop/vhost-user.txt +++ b/docs/interop/vhost-user.txt @@ -699,6 +699,16 @@ Master message types feature has been successfully negotiated. It's a required feature for crypto devices. + * VHOST_USER_POSTCOPY_ADVISE + Id: 28 + Master payload: N/A + Slave payload: userfault fd + + When VHOST_USER_PROTOCOL_F_PAGEFAULT is supported, the + master advises slave that a migration with postcopy enabled is underway, + the slave must open a userfaultfd for later use. + Note that at this stage the migration is still in precopy mode. + Slave message types ------------------- |