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migration: new cmd MIG_CMD_POSTCOPY_RESUME

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Introducing this new command to be sent when the source VM is ready to
resume the paused migration.  What the destination does here is
basically release the fault thread to continue service page faults.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180502104740.12123-14-peterx@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Peter Xu 2018-05-02 18:47:29 +08:00 • committed by Juan Quintela
parent a335debb35
commit 3f5875eca5
3 changed files with 38 additions and 0 deletions
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migration/trace-events
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@ -18,6 +18,7 @@ loadvm_postcopy_handle_listen(void) ""
loadvm_postcopy_handle_run(void) ""
loadvm_postcopy_handle_run_cpu_sync(void) ""
loadvm_postcopy_handle_run_vmstart(void) ""
loadvm_postcopy_handle_resume(void) ""
loadvm_postcopy_ram_handle_discard(void) ""
loadvm_postcopy_ram_handle_discard_end(void) ""
loadvm_postcopy_ram_handle_discard_header(const char *ramid, uint16_t len) "%s: %ud"
@ -35,6 +36,7 @@ savevm_send_open_return_path(void) ""
savevm_send_ping(uint32_t val) "0x%x"
savevm_send_postcopy_listen(void) ""
savevm_send_postcopy_run(void) ""
savevm_send_postcopy_resume(void) ""
savevm_send_recv_bitmap(char *name) "%s"
savevm_state_setup(void) ""
savevm_state_header(void) ""