Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140505' into staging

migration/next for 20140505

# gpg: Signature made Mon 05 May 2014 21:27:24 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20140505: (36 commits)
  migration: expose xbzrle cache miss rate
  migration: expose the bitmap_sync_count to the end
  migration: Add counts of updating the dirty bitmap
  XBZRLE: Fix one XBZRLE corruption issues
  migration: remove duplicate code
  Coverity: Fix failure path for qemu_accept in migration
  Init the XBZRLE.lock in ram_mig_init
  Provide init function for ram migration
  Count used RAMBlock pages for migration_dirty_pages
  Make qemu_peek_buffer loop until it gets it's data
  Disallow outward migration while awaiting incoming migration
  virtio: validate config_len on load
  virtio-net: out-of-bounds buffer write on load
  openpic: avoid buffer overrun on incoming migration
  ssi-sd: fix buffer overrun on invalid state load
  savevm: Ignore minimum_version_id_old if there is no load_state_old
  usb: sanity check setup_index+setup_len in post_load
  vmstate: s/VMSTATE_INT32_LE/VMSTATE_INT32_POSITIVE_LE/
  virtio-scsi: fix buffer overrun on invalid state load
  zaurus: fix buffer overrun on invalid state load
  ...

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

1 files changed, 14 insertions, 0 deletions

diff --git a/hw/ssi/pl022.c b/hw/ssi/pl022.c
index fd479ef..b19bc71 100644
--- a/hw/ssi/pl022.c
+++ b/hw/ssi/pl022.c
@@ -240,11 +240,25 @@ static const MemoryRegionOps pl022_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
+static int pl022_post_load(void *opaque, int version_id)
+{
+    PL022State *s = opaque;
+
+    if (s->tx_fifo_head < 0 ||
+        s->tx_fifo_head >= ARRAY_SIZE(s->tx_fifo) ||
+        s->rx_fifo_head < 0 ||
+        s->rx_fifo_head >= ARRAY_SIZE(s->rx_fifo)) {
+        return -1;
+    }
+    return 0;
+}
+
 static const VMStateDescription vmstate_pl022 = {
     .name = "pl022_ssp",
     .version_id = 1,
     .minimum_version_id = 1,
     .minimum_version_id_old = 1,
+    .post_load = pl022_post_load,
     .fields      = (VMStateField[]) {
         VMSTATE_UINT32(cr0, PL022State),
         VMSTATE_UINT32(cr1, PL022State),