Patchwork [v3,22/35] savevm: add new section that is used by postcopy

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Submitter Isaku Yamahata
Date Oct. 30, 2012, 8:32 a.m.
Message ID <882ec814f429f86bcf235c3273cb8393cbcd4f1a.1351582535.git.yamahata@valinux.co.jp>
Download mbox | patch
Permalink /patch/195331/
State New
Headers show

Comments

Isaku Yamahata - Oct. 30, 2012, 8:32 a.m.
This is used by postcopy to tell the total length of QEMU_VM_SECTION_FULL
and QEMU_VM_SUBSECTION from outgoing to incoming.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
---
 savevm.c |    4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/savevm.c b/savevm.c
index 93c51ab..c93b6eb 100644
--- a/savevm.c
+++ b/savevm.c
@@ -1614,6 +1614,10 @@  static void vmstate_save(QEMUFile *f, SaveStateEntry *se)
 #define QEMU_VM_SECTION_FULL         0x04
 #define QEMU_VM_SUBSECTION           0x05
 
+/* This section is used by postcopy to tell postcopy enabled session.
+   If the destination side doesn't know, it sees unknown section and abort. */
+#define QEMU_VM_POSTCOPY             0x10
+
 bool qemu_savevm_state_blocked(Error **errp)
 {
     SaveStateEntry *se;