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| author | Dr. David Alan Gilbert | 2018-03-12 18:21:06 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2018-03-20 04:03:28 +0100 |
| commit | 6864a7b5aced6d8d9b287b92db8d7a996ea2e8a3 (patch) | |
| tree | 84755be6b91f51835ef5ad85247ba0c7e045617b /docs/interop | |
| parent | vhost+postcopy: Register shared ufd with postcopy (diff) | |
| download | qemu-6864a7b5aced6d8d9b287b92db8d7a996ea2e8a3.tar.gz qemu-6864a7b5aced6d8d9b287b92db8d7a996ea2e8a3.tar.xz qemu-6864a7b5aced6d8d9b287b92db8d7a996ea2e8a3.zip | |
vhost+postcopy: Transmit 'listen' to slave
Notify the vhost-user slave on reception of the 'postcopy-listen'
event from the source.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Xu <peterx@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 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/interop/vhost-user.txt b/docs/interop/vhost-user.txt index 7854e50008..0d24203d31 100644 --- a/docs/interop/vhost-user.txt +++ b/docs/interop/vhost-user.txt @@ -709,6 +709,17 @@ Master message types the slave must open a userfaultfd for later use. Note that at this stage the migration is still in precopy mode. + * VHOST_USER_POSTCOPY_LISTEN + Id: 29 + Master payload: N/A + + Master advises slave that a transition to postcopy mode has happened. + The slave must ensure that shared memory is registered with userfaultfd + to cause faulting of non-present pages. + + This is always sent sometime after a VHOST_USER_POSTCOPY_ADVISE, and + thus only when VHOST_USER_PROTOCOL_F_PAGEFAULT is supported. + Slave message types ------------------- |