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libvhost-user: Open userfaultfd

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Open a userfaultfd (on a postcopy_advise) and send it back in
the reply to the qemu for it to monitor.

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>
This commit is contained in:
Dr. David Alan Gilbert 2018-03-12 17:21:03 +00:00 • committed by Michael S. Tsirkin
parent d6e47717b0
commit 2a84ffc0be
2 changed files with 43 additions and 2 deletions
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3
contrib/libvhost-user/libvhost-user.h
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@ -282,6 +282,9 @@ struct VuDev {
* re-initialize */
vu_panic_cb panic;
const VuDevIface *iface;
/* Postcopy data */
int postcopy_ufd;
};
typedef struct VuVirtqElement {