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migration: Dump sub-cmd name in loadvm_process_command tp 

It'll be easier to read the name rather than index of sub-cmd when debugging.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220301083925.33483-2-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Peter Xu 2022-03-01 16:39:01 +08:00 committed by Dr. David Alan Gilbert
parent f736e414ee
commit a7060ba3cc
2 changed files with 3 additions and 2 deletions
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3
migration/savevm.c
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@ -2273,12 +2273,13 @@ static int loadvm_process_command(QEMUFile *f)
return qemu_file_get_error(f);
}
trace_loadvm_process_command(cmd, len);
if (cmd >= MIG_CMD_MAX || cmd == MIG_CMD_INVALID) {
error_report("MIG_CMD 0x%x unknown (len 0x%x)", cmd, len);
return -EINVAL;
}
trace_loadvm_process_command(mig_cmd_args[cmd].name, len);
if (mig_cmd_args[cmd].len != -1 && mig_cmd_args[cmd].len != len) {
error_report("%s received with bad length - expecting %zu, got %d",
mig_cmd_args[cmd].name,

2
migration/trace-events
View File

@ -22,7 +22,7 @@ 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"
loadvm_process_command(uint16_t com, uint16_t len) "com=0x%x len=%d"
loadvm_process_command(const char *s, uint16_t len) "com=%s len=%d"
loadvm_process_command_ping(uint32_t val) "0x%x"
postcopy_ram_listen_thread_exit(void) ""
postcopy_ram_listen_thread_start(void) ""