[PATCH v9 10/25] tools/libx{l, c}: add postcopy/suspend callback to restore side

[Wen Congyang <wency@cn.fujitsu.com>]

Secondary(restore side) is running under COLO, we also need
postcopy/suspend callbacks.

Signed-off-by: Yang Hongyang <hongyang.yang@easystack.cn>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
---
 tools/libxc/include/xenguest.h     | 10 ++++++++++
 tools/libxl/libxl_save_msgs_gen.pl |  4 ++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/tools/libxc/include/xenguest.h b/tools/libxc/include/xenguest.h
index 88d6e13..7c74977 100644
--- a/tools/libxc/include/xenguest.h
+++ b/tools/libxc/include/xenguest.h
@@ -95,6 +95,16 @@ int xc_domain_save(xc_interface *xch, int io_fd, uint32_t dom, uint32_t max_iter
 
 /* callbacks provided by xc_domain_restore */
 struct restore_callbacks {
+    /* Called after a new checkpoint to suspend the guest.
+     */
+    int (*suspend)(void* data);
+
+    /* Called after the secondary vm is ready to resume.
+     * Callback function resumes the guest & the device model,
+     * returns to xc_domain_restore.
+     */
+    int (*postcopy)(void* data);
+
     /* A checkpoint record has been found in the stream.
      * returns: */
 #define XGR_CHECKPOINT_ERROR    0 /* Terminate processing */
diff --git a/tools/libxl/libxl_save_msgs_gen.pl b/tools/libxl/libxl_save_msgs_gen.pl
index 9107a86..7c9859b 100755
--- a/tools/libxl/libxl_save_msgs_gen.pl
+++ b/tools/libxl/libxl_save_msgs_gen.pl
@@ -23,8 +23,8 @@ our @msgs = (
                                                  STRING doing_what),
                                                 'unsigned long', 'done',
                                                 'unsigned long', 'total'] ],
-    [  3, 'scxA',   "suspend", [] ],
-    [  4, 'scxA',   "postcopy", [] ],
+    [  3, 'srcxA',  "suspend", [] ],
+    [  4, 'srcxA',  "postcopy", [] ],
     [  5, 'srcxA',  "checkpoint", [] ],
     [  6, 'srcxA',  "should_checkpoint", [] ],
     [  7, 'scxA',   "switch_qemu_logdirty",  [qw(int domid
-- 
2.5.0