* Peter Xu (pet...@redhat.com) wrote:
> On Fri, Feb 16, 2018 at 01:16:07PM +0000, Dr. David Alan Gilbert (git) wrote:
>
> [...]
>
> > typedef struct VuVirtqElement {
> > diff --git a/docs/interop/vhost-user.txt b/docs/interop/vhost-user.txt
> > index 621543e654..bdec9ec0e8 100644
> > --- a/docs/interop/vhost-user.txt
> > +++ b/docs/interop/vhost-user.txt
> > @@ -682,6 +682,12 @@ 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: 27
> > + Master payload: N/A
> > +
> > + Master advises slave that a transition to postcopy mode has happened.
>
> Could we add something to explain why this listen needs to be
> broadcasted to clients? Since I failed to find it out quickly
> myself. :(
I've changed this to:
* 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.
Dave
> --
> Peter Xu
--
Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
