> -----Original Message-----
> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> Sent: Monday, July 31, 2017 11:41 PM
> To: Stefan Hajnoczi <stefa...@redhat.com>; Liu, Changpeng
> <changpeng....@intel.com>
> Cc: qemu-devel@nongnu.org; fel...@nutanix.com; m...@redhat.com; Marc-
> André Lureau <marcandre.lur...@redhat.com>
> Subject: Re: [PATCH 1/2] vhost-user-blk: introduce a new vhost-user-blk host
> device
>
> On 31/07/2017 16:51, Stefan Hajnoczi wrote:
> > typedef enum VhostUserRequest {
> > ...
> >
> > /* Submitted by the vhost-user master when the guest writes to
> > * virtio config space and also after live migration on the
> > * destination host.
> > */
> > VHOST_USER_SET_CONFIG,
> >
> > /* Submitted by the vhost-user master to fetch the contents of the
> > * virtio config space. The vhost-user master may cache the
> > * contents to avoid repeated VHOST_USER_GET_CONFIG calls.
> > */
> > VHOST_USER_GET_CONFIG,
> >
> > ...
> > };
>
> Also:
>
> /* Submitted by the vhost-user master if it would like to
> * be informed of virtio config space changes. The slave
> * signals the eventfd whenever config space is modified.
> */
> VHOST_USER_SET_CONFIG_FD,
>
> Paolo
>
Thanks Stefan and Paolo, looks much cleaner now.
> > struct VuDev {
> > ...
> > int config_change_fd;
> > ...
> > };
