tools/libxl: Provide a static_data_done callback for domain restore

This will be needed shortly to provide backwards compatiblity for migration
streams which do not have CPUID information contained within them.

No functional change yet.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>

diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
index 8614a2c2413871b86b3e640d7483c26c73f40312..baed817a962c55c7d10f9f7c1b30f22999fc3122 100644 (file)
--- a/tools/libxl/libxl_create.c
+++ b/tools/libxl/libxl_create.c
@@ -1358,6 +1358,7 @@ static void domcreate_bootloader_done(libxl__egc *egc,
     dcs->srs.dcs = dcs;
 
     /* Restore */
+    callbacks->static_data_done = libxl__srm_callout_callback_static_data_done;
     callbacks->restore_results = libxl__srm_callout_callback_restore_results;
 
     /* COLO only supports HVM now because it does not work very
@@ -1427,6 +1428,17 @@ static void libxl__colo_restore_setup_done(libxl__egc *egc,
     libxl__stream_read_start(egc, &dcs->srs);
 }
 
+int libxl__srm_callout_callback_static_data_done(void *user)
+{
+    libxl__save_helper_state *shs = user;
+    libxl__domain_create_state *dcs = shs->caller_state;
+    STATE_AO_GC(dcs->ao);
+
+    /* Nothing to do (yet). */
+
+    return 0;
+}
+
 void libxl__srm_callout_callback_restore_results(xen_pfn_t store_mfn,
           xen_pfn_t console_mfn, void *user)
 {

diff --git a/tools/libxl/libxl_save_msgs_gen.pl b/tools/libxl/libxl_save_msgs_gen.pl
index 831a15e0bb87f37c9661a58e7194b98bc13ef9b3..93dc252370ce2019ef2b7cb7264e7678a623cb64 100755 (executable)
--- a/tools/libxl/libxl_save_msgs_gen.pl
+++ b/tools/libxl/libxl_save_msgs_gen.pl
@@ -29,6 +29,7 @@ our @msgs = (
     [ 'srcxA',  "wait_checkpoint", [] ],
     [ 'scxA',   "switch_qemu_logdirty",  [qw(uint32_t domid
                                           unsigned enable)] ],
+    [ 'rcxW',   "static_data_done",      [] ],
     [ 'rcx',    "restore_results",       ['xen_pfn_t', 'store_gfn',
                                           'xen_pfn_t', 'console_gfn'] ],
     [ 'srW',    "complete",              [qw(int retval