Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into…

… staging

* Asynchronous dump-guest-memory from Peter
* improved logging with -D -daemonize from Dimitris
* more address_space_* optimization from Gonglei
* TCG xsave/xrstor thinko fix
* chardev bugfix and documentation patch

# gpg: Signature made Thu 25 Feb 2016 15:12:27 GMT using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <[email protected]>"
# gpg:                 aka "Paolo Bonzini <[email protected]>"

* remotes/bonzini/tags/for-upstream:
  target-i386: fix confusion in xcr0 bit position vs. mask
  chardev: Properly initialize ChardevCommon components
  memory: Remove unreachable return statement
  memory: optimize qemu_get_ram_ptr and qemu_ram_ptr_length
  exec: store RAMBlock pointer into memory region
  log: Redirect stderr to logfile if deamonized
  dump-guest-memory: add qmp event DUMP_COMPLETED
  Dump: add hmp command "info dump"
  Dump: add qmp command "query-dump"
  DumpState: adding total_size and written_size fields
  dump-guest-memory: add "detach" support
  dump-guest-memory: disable dump when in INMIGRATE state
  dump-guest-memory: introduce dump_process() helper function.
  dump-guest-memory: add dump_in_progress() helper function
  dump-guest-memory: using static DumpState, add DumpStatus
  dump-guest-memory: add "detach" flag for QMP/HMP interfaces.
  dump-guest-memory: cleanup: removing dump_{error|cleanup}().
  scripts/kvm/kvm_stat: Fix missing right parantheses and ".format(...)"
  qemu-options.hx: Improve documentation of chardev multiplexing mode

Signed-off-by: Peter Maydell <[email protected]>

docs/qmp-events.txt

@@ -220,6 +220,24 @@ Data:
   },
   "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
 
+DUMP_COMPLETED
+--------------
+
+Emitted when the guest has finished one memory dump.
+
+Data:
+
+- "result": DumpQueryResult type described in qapi-schema.json
+- "error": Error message when dump failed. This is only a
+  human-readable string provided when dump failed. It should not be
+  parsed in any way (json-string, optional)
+
+Example:
+
+{ "event": "DUMP_COMPLETED",
+  "data": {"result": {"total": 1090650112, "status": "completed",
+                      "completed": 1090650112} } }
+
 GUEST_PANICKED
 --------------