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migration/next for 20140505

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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>
This commit is contained in:
Peter Maydell 2014-05-07 14:51:21 +01:00
commit c9541f67df
32 changed files with 484 additions and 185 deletions
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20
hw/net/virtio-net.c
View file

@ -1362,10 +1362,17 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
if (n->mac_table.in_use <= MAC_TABLE_ENTRIES) {
qemu_get_buffer(f, n->mac_table.macs,
n->mac_table.in_use * ETH_ALEN);
} else if (n->mac_table.in_use) {
uint8_t *buf = g_malloc0(n->mac_table.in_use);
qemu_get_buffer(f, buf, n->mac_table.in_use * ETH_ALEN);
g_free(buf);
} else {
int64_t i;
/* Overflow detected - can happen if source has a larger MAC table.
* We simply set overflow flag so there's no need to maintain the
* table of addresses, discard them all.
* Note: 64 bit math to avoid integer overflow.
*/
for (i = 0; i < (int64_t)n->mac_table.in_use * ETH_ALEN; ++i) {
qemu_get_byte(f);
}
n->mac_table.multi_overflow = n->mac_table.uni_overflow = 1;
n->mac_table.in_use = 0;
}
@ -1407,6 +1414,11 @@ static int virtio_net_load(QEMUFile *f, void *opaque, int version_id)
}
n->curr_queues = qemu_get_be16(f);
if (n->curr_queues > n->max_queues) {
error_report("virtio-net: curr_queues %x > max_queues %x",
n->curr_queues, n->max_queues);
return -1;
}
for (i = 1; i < n->curr_queues; i++) {
n->vqs[i].tx_waiting = qemu_get_be32(f);
}