Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20150612' into staging

migration/next for 20150612

# gpg: Signature made Fri Jun 12 05:56:21 2015 BST using RSA key ID 5872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"

* remotes/juanquintela/tags/migration/20150612: (21 commits)
  Remove unneeded memset
  Rename RDMA structures to make destination clear
  Teach analyze-migration.py about section footers
  Add a protective section footer
  Disable section footers on older machine types
  Merge section header writing
  Move loadvm_handlers into MigrationIncomingState
  Move copy out of qemu_peek_buffer
  Create MigrationIncomingState
  qemu_ram_foreach_block: pass up error value, and down the ramblock name
  Split header writing out of qemu_savevm_state_begin
  Add qemu_get_counted_string to read a string prefixed by a count byte
  migration: Use normal VMStateDescriptions for Subsections
  migration: create savevm_state
  migration: Remove duplicated assignment of SETUP status
  rdma: Fix qemu crash when IPv6 address is used for migration
  arch_init: Clean up the duplicate variable 'len' defining in ram_load()
  migration: reduce include files
  migration: Add myself to the copyright list of both files
  migration: move savevm.c inside migration/
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 12 insertions, 9 deletions

diff --git a/exec.c b/exec.c
index 487583b1bd..76bfc4ac4a 100644
--- a/exec.c
+++ b/exec.c
@@ -454,6 +454,7 @@ static const VMStateDescription vmstate_cpu_common_exception_index = {
     .name = "cpu_common/exception_index",
     .version_id = 1,
     .minimum_version_id = 1,
+    .needed = cpu_common_exception_index_needed,
     .fields = (VMStateField[]) {
         VMSTATE_INT32(exception_index, CPUState),
         VMSTATE_END_OF_LIST()
@@ -471,13 +472,9 @@ const VMStateDescription vmstate_cpu_common = {
         VMSTATE_UINT32(interrupt_request, CPUState),
         VMSTATE_END_OF_LIST()
     },
-    .subsections = (VMStateSubsection[]) {
-        {
-            .vmsd = &vmstate_cpu_common_exception_index,
-            .needed = cpu_common_exception_index_needed,
-        } , {
-            /* empty */
-        }
+    .subsections = (const VMStateDescription*[]) {
+        &vmstate_cpu_common_exception_index,
+        NULL
     }
 };
 
@@ -3348,14 +3345,20 @@ bool cpu_physical_memory_is_io(hwaddr phys_addr)
     return res;
 }
 
-void qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)
+int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)
 {
     RAMBlock *block;
+    int ret = 0;
 
     rcu_read_lock();
     QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
-        func(block->host, block->offset, block->used_length, opaque);
+        ret = func(block->idstr, block->host, block->offset,
+                   block->used_length, opaque);
+        if (ret) {
+            break;
+        }
     }
     rcu_read_unlock();
+    return ret;
 }
 #endif