qemu/migration/migration.h

10  * the COPYING file in the top-level directory.
17 #include "exec/cpu-common.h"
18 #include "hw/qdev-core.h"
19 #include "qapi/qapi-types-migration.h"
20 #include "qobject/json-writer.h"
24 #include "io/channel-buffer.h"
27 #include "postcopy-ram.h"
51  * 1<<6=64 pages -> 256K chunk when page size is 4K.  This gives us
57  * 1<<18=256K pages -> 1G chunk when page size is 4K.  This is the
62  * 1<<31=2G pages -> 8T chunk when page size is 4K.  This should be
153      * up-to-date across cores.
181      * The incoming migration coroutine, non-NULL during qemu_loadvm_state().
183      * it safe - it's a question.
225      * the per-ramblock receivedmap.  Note! This does not guarantee consistency
307     double pages_per_second;
316      * measured bandwidth, or avail-switchover-bandwidth if specified.
320     /* params from 'migrate-set-parameters' */
331          * We can also check non-zero of rp_thread, but there's no "official"
352     double mbps;
381     /* Migration is paused due to pause-before-switchover */
411     /* Needed by postcopy-pause state */
419      * - postcopy preempt src QEMU instance will generate an EOS message at
422      * - postcopy preempt channel will be created at the setup phase on src
427      * - postcopy preempt src QEMU instance will _not_ generate an EOS
431      * - postcopy preempt channel will be created at the switching phase
432      *   from precopy -> postcopy (to avoid race condition of misordered
435      * NOTE: See message-id <ZBoShWArKDPpX/D7@work-vm> on qemu-devel
457      * affects the behavior of the last send->recv iteration with
462      * - the destination QEMU instance can expect to never get a
464      *   message: "The TLS connection was non-properly terminated".
468      * - the destination QEMU instance can expect to see a
482      * any moment prior to the last send->recv iteration.
497      * This save hostname when out-going migration starts
501     /* QEMU_VM_VMDESCRIPTION content filled for all non-iterable devices. */
534 /* True if outgoing migration has entered postcopy phase */
543 /* Sending on the return path - generic and then for each message type */
580  * Migration thread waiting for return path thread.  Return non-zero if an
593 /* migration/block-dirty-bitmap.c */