[Qemu-devel] [PATCH v7 08/42] migrate_init: Call from savevm

[Dr. David Alan Gilbert (git)]

From: "Dr. David Alan Gilbert" <dgilb...@redhat.com>

Suspend to file is very much like a migrate, and it makes life
easier if we have the Migration state available, so initialise it
in the savevm.c code for suspending.

Signed-off-by: Dr. David Alan Gilbert <dgilb...@redhat.com>
Reviewed-by: David Gibson <da...@gibson.dropbear.id.au>
---
 include/migration/migration.h | 4 +---
 include/qemu/typedefs.h       | 1 +
 migration/migration.c         | 2 +-
 migration/savevm.c            | 2 ++
 4 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/include/migration/migration.h b/include/migration/migration.h
index b3a7f75..414c5cf 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -41,10 +41,7 @@ struct MigrationParams {
     bool shared;
 };
 
-typedef struct MigrationState MigrationState;
-
 typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head;
-
 /* State for the incoming migration */
 struct MigrationIncomingState {
     QEMUFile *file;
@@ -115,6 +112,7 @@ int migrate_fd_close(MigrationState *s);
 
 void add_migration_state_change_notifier(Notifier *notify);
 void remove_migration_state_change_notifier(Notifier *notify);
+MigrationState *migrate_init(const MigrationParams *params);
 bool migration_in_setup(MigrationState *);
 bool migration_has_finished(MigrationState *);
 bool migration_has_failed(MigrationState *);
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index fc7c70e..8403856 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -41,6 +41,7 @@ typedef struct MemoryRegion MemoryRegion;
 typedef struct MemoryRegionSection MemoryRegionSection;
 typedef struct MigrationIncomingState MigrationIncomingState;
 typedef struct MigrationParams MigrationParams;
+typedef struct MigrationState MigrationState;
 typedef struct Monitor Monitor;
 typedef struct MouseTransformInfo MouseTransformInfo;
 typedef struct MSIMessage MSIMessage;
diff --git a/migration/migration.c b/migration/migration.c
index b04b457..3cd7f4b 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -489,7 +489,7 @@ bool migration_has_failed(MigrationState *s)
             s->state == MIGRATION_STATUS_FAILED);
 }
 
-static MigrationState *migrate_init(const MigrationParams *params)
+MigrationState *migrate_init(const MigrationParams *params)
 {
     MigrationState *s = migrate_get_current();
     int64_t bandwidth_limit = s->bandwidth_limit;
diff --git a/migration/savevm.c b/migration/savevm.c
index 2091882..aaf8c5c 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -903,6 +903,8 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp)
         .blk = 0,
         .shared = 0
     };
+    MigrationState *ms = migrate_init(&params);
+    ms->file = f;
 
     if (qemu_savevm_state_blocked(errp)) {
         return -EINVAL;
-- 
2.4.3