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authorThibaut Collet <thibaut.collet@6wind.com>2015-10-09 17:17:32 +0200
committerMichael S. Tsirkin <mst@redhat.com>2015-10-22 14:34:49 +0300
commit3e866365e1eb6bcfa2d01c21debb05b9e47a47f7 (patch)
treee729ff5a9a19d482984eb8e930c065ffa0d7b634 /target-ppc/translate_init.c
parentf6f56291de879827766d17b172465d4377ad2c11 (diff)
vhost user: add rarp sending after live migration for legacy guest
A new vhost user message is added to allow QEMU to ask to vhost user backend to broadcast a fake RARP after live migration for guest without GUEST_ANNOUNCE capability. This new message is sent only if the backend supports the new VHOST_USER_PROTOCOL_F_RARP protocol feature. The payload of this new message is the MAC address of the guest (not known by the backend). The MAC address is copied in the first 6 bytes of a u64 to avoid to create a new payload message type. This new message has no equivalent ioctl so a new callback is added in the userOps structure to send the request. Upon reception of this new message the vhost user backend must generate and broadcast a fake RARP request to notify the migration is terminated. Signed-off-by: Thibaut Collet <thibaut.collet@6wind.com> [Rebased and fixed checkpatch errors - Marc-André] Signed-off-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> Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
Diffstat (limited to 'target-ppc/translate_init.c')
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