v4: * Rebase to qemu.git/master * Use "unsigned int" instead of "unsigned" in virtqueue_undo_map_desc() [Cornelia]
v3: * Patch 1: Fix typo and clarify commit description [Markus] * Use virtio_set_status() instead of open coding assignment [Cornelia] * Add live migration v2: * Add VIRTIO_CONFIG_S_NEEDS_RESET notification for VIRTIO 1.0 [Cornelia] (Note I've sent a Linux virtio_config.h patch to get the constant added to the headers.) * Split int -> unsigned int change into separate commit [Fam] * Fix double "index" typo in commit description [Fam] The virtio code calls exit() when the device enters an invalid state. This means invalid vring indices and descriptor chains kill the VM. See the patch descriptions for why this is a bad thing. When the virtio device is in the broken state calls to virtqueue_pop() and friends will pretend the virtqueue is empty. This means the device will become isolated from guest activity until it is reset again. Stefan Hajnoczi (9): virtio: fix stray tab character virtio: stop virtqueue processing if device is broken virtio: migrate vdev->broken flag virtio: handle virtqueue_map_desc() errors virtio: handle virtqueue_get_avail_bytes() errors virtio: use unsigned int for virtqueue_get_avail_bytes() index virtio: handle virtqueue_read_next_desc() errors virtio: handle virtqueue_num_heads() errors virtio: handle virtqueue_get_head() errors hw/virtio/virtio.c | 232 +++++++++++++++++++++++++++++++++++---------- include/hw/virtio/virtio.h | 3 + 2 files changed, 184 insertions(+), 51 deletions(-) -- 2.7.4
