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authorJuan Quintela <quintela@redhat.com>2009-10-19 15:46:28 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-10-27 12:28:51 -0500
commit76507c754831bc6c01cc010255b992c7c9b57742 (patch)
tree7387e4d540e9a7ff1ee0c0aae82d6e3e141be4b9 /savevm.c
parentvmstate: Add version arg to VMSTATE_SINGLE_TEST() (diff)
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vmstate: Add VMSTATE_BUFFER_UNUSED
It allows to have 'things' in savevm format not backed in the device state Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'savevm.c')
-rw-r--r--savevm.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/savevm.c b/savevm.c
index cbb60f3a2..70e8a7d36 100644
--- a/savevm.c
+++ b/savevm.c
@@ -944,6 +944,26 @@ const VMStateInfo vmstate_info_buffer = {
.put = put_buffer,
};
+/* unused buffers: space that was used for some fields that are
+ not usefull anymore */
+
+static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
+{
+ qemu_fseek(f, size, SEEK_CUR);
+ return 0;
+}
+
+static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
+{
+ qemu_fseek(f, size, SEEK_CUR);
+}
+
+const VMStateInfo vmstate_info_unused_buffer = {
+ .name = "unused_buffer",
+ .get = get_unused_buffer,
+ .put = put_unused_buffer,
+};
+
typedef struct SaveStateEntry {
QTAILQ_ENTRY(SaveStateEntry) entry;
char idstr[256];