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Start up a postcopy/listener thread ready for incoming page data

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The loading of a device state (during postcopy) may access guest
memory that's still on the source machine and thus might need
a page fill; split off a separate thread that handles the incoming
page data so that the original incoming migration code can finish
off the device data.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2015-11-05 18:11:18 +00:00 • committed by Juan Quintela
parent c4faeed231
commit c76201ab52
4 changed files with 90 additions and 1 deletions
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@ -1220,6 +1220,8 @@ loadvm_postcopy_ram_handle_discard_end(void) ""
loadvm_postcopy_ram_handle_discard_header(const char *ramid, uint16_t len) "%s: %ud"
loadvm_process_command(uint16_t com, uint16_t len) "com=0x%x len=%d"
loadvm_process_command_ping(uint32_t val) "%x"
postcopy_ram_listen_thread_exit(void) ""
postcopy_ram_listen_thread_start(void) ""
qemu_savevm_send_postcopy_advise(void) ""
qemu_savevm_send_postcopy_ram_discard(const char *id, uint16_t len) "%s: %ud"
savevm_command_send(uint16_t command, uint16_t len) "com=0x%x len=%d"