[PATCH V1 04/32] savevm: HMP Command for cprsave

[Steve Sistare <steven.sistare@oracle.com>]

Enable HMP access to the cprsave QMP command.

Usage: cprsave <filename> <mode>

Signed-off-by: Maran Wilson <maran.wilson@oracle.com>
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
---
 hmp-commands.hx       | 18 ++++++++++++++++++
 include/monitor/hmp.h |  1 +
 monitor/hmp-cmds.c    | 10 ++++++++++
 3 files changed, 29 insertions(+)

diff --git a/hmp-commands.hx b/hmp-commands.hx
index 60f395c..c8defd9 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -354,6 +354,24 @@ SRST
 ERST
 
     {
+        .name       = "cprsave",
+        .args_type  = "file:s,mode:s",
+        .params     = "file 'reboot'",
+        .help       = "create a checkpoint of the VM in file",
+        .cmd        = hmp_cprsave,
+    },
+
+SRST
+``cprsave`` *tag*
+  Stop VCPUs, create a checkpoint of the whole virtual machine and save it
+  in *file*.
+  If *mode* is 'reboot', the checkpoint can be cprload'ed after a host kexec
+  reboot.
+  exec() /usr/bin/qemu-exec if it exists, else exec /usr/bin/qemu-system-x86_64,
+  passing all the original command line arguments.  The VCPUs remain paused.
+ERST
+
+    {
         .name       = "delvm",
         .args_type  = "name:s",
         .params     = "tag",
diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h
index c986cfd..af8ee23 100644
--- a/include/monitor/hmp.h
+++ b/include/monitor/hmp.h
@@ -59,6 +59,7 @@ void hmp_balloon(Monitor *mon, const QDict *qdict);
 void hmp_loadvm(Monitor *mon, const QDict *qdict);
 void hmp_savevm(Monitor *mon, const QDict *qdict);
 void hmp_delvm(Monitor *mon, const QDict *qdict);
+void hmp_cprsave(Monitor *mon, const QDict *qdict);
 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict);
 void hmp_migrate_continue(Monitor *mon, const QDict *qdict);
 void hmp_migrate_incoming(Monitor *mon, const QDict *qdict);
diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
index ae4b6a4..59196ed 100644
--- a/monitor/hmp-cmds.c
+++ b/monitor/hmp-cmds.c
@@ -1139,6 +1139,16 @@ void hmp_announce_self(Monitor *mon, const QDict *qdict)
     qapi_free_AnnounceParameters(params);
 }
 
+void hmp_cprsave(Monitor *mon, const QDict *qdict)
+{
+    Error *err = NULL;
+
+    qmp_cprsave(qdict_get_try_str(qdict, "file"),
+                qdict_get_try_str(qdict, "mode"),
+                &err);
+    hmp_handle_error(mon, err);
+}
+
 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
 {
     qmp_migrate_cancel(NULL);
-- 
1.8.3.1