diff options
| author | Alexander Graf <agraf@suse.de> | 2014-06-24 19:13:50 +0200 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2014-08-05 14:16:50 -0500 |
| commit | 9221efd7750e255dbbba4a6c8fd30acb0db68399 (patch) | |
| tree | 21520aed7b5ee5eac43590a636014de0799d5796 /hw | |
| parent | 4ce91be0c31a19463d05ea3c850984b453171486 (diff) | |
| download | qemu-9221efd7750e255dbbba4a6c8fd30acb0db68399.tar.gz | |
virtio-serial: don't migrate the config space
The device configuration is set at realize time and never changes. It
should not be migrated as it is done today. For the sake of compatibility,
let's just skip them at load time.
Signed-off-by: Alexander Graf <agraf@suse.de>
[ added missing casts to uint16_t *,
added From, SoB and commit message,
Greg Kurz <gkurz@linux.vnet.ibm.com> ]
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit e38e943a1fa20d04deb1899be19b12aadec7a585)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/char/virtio-serial-bus.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c index 2b647b68d5..ee1ba162aa 100644 --- a/hw/char/virtio-serial-bus.c +++ b/hw/char/virtio-serial-bus.c @@ -670,6 +670,7 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) uint32_t max_nr_ports, nr_active_ports, ports_map; unsigned int i; int ret; + uint32_t tmp; if (version_id > 3) { return -EINVAL; @@ -685,17 +686,12 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) return 0; } - /* The config space */ - qemu_get_be16s(f, &s->config.cols); - qemu_get_be16s(f, &s->config.rows); - - qemu_get_be32s(f, &max_nr_ports); - tswap32s(&max_nr_ports); - if (max_nr_ports > tswap32(s->config.max_nr_ports)) { - /* Source could have had more ports than us. Fail migration. */ - return -EINVAL; - } + /* Unused */ + qemu_get_be16s(f, (uint16_t *) &tmp); + qemu_get_be16s(f, (uint16_t *) &tmp); + qemu_get_be32s(f, &tmp); + max_nr_ports = tswap32(s->config.max_nr_ports); for (i = 0; i < (max_nr_ports + 31) / 32; i++) { qemu_get_be32s(f, &ports_map); |