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virtio-blk: Create exit function to unregister savevm 

Otherwise we can't migrate after we've removed a virtio block device.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alex Williamson 2010-07-20 11:14:22 -06:00 committed by Kevin Wolf
parent b02bea3a85
commit 9d0d313859
3 changed files with 10 additions and 0 deletions
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8
hw/virtio-blk.c
View File

@ -28,6 +28,7 @@ typedef struct VirtIOBlock
BlockConf *conf;
unsigned short sector_mask;
char sn[BLOCK_SERIAL_STRLEN];
DeviceState *qdev;
} VirtIOBlock;
static VirtIOBlock *to_virtio_blk(VirtIODevice *vdev)
@ -522,9 +523,16 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf)
s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output);
qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s);
s->qdev = dev;
register_savevm(dev, "virtio-blk", virtio_blk_id++, 2,
virtio_blk_save, virtio_blk_load, s);
bdrv_set_removable(s->bs, 0);
return &s->vdev;
}
void virtio_blk_exit(VirtIODevice *vdev)
{
VirtIOBlock *s = to_virtio_blk(vdev);
unregister_savevm(s->qdev, "virtio-blk", s);
}

1
hw/virtio-pci.c
View File

@ -569,6 +569,7 @@ static int virtio_blk_exit_pci(PCIDevice *pci_dev)
{
VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
virtio_blk_exit(proxy->vdev);
blockdev_mark_auto_del(proxy->block.bs);
return virtio_exit_pci(pci_dev);
}

1
hw/virtio.h
View File

@ -194,6 +194,7 @@ VirtIODevice *virtio_9p_init(DeviceState *dev, V9fsConf *conf);
void virtio_net_exit(VirtIODevice *vdev);
void virtio_blk_exit(VirtIODevice *vdev);
#define DEFINE_VIRTIO_COMMON_FEATURES(_state, _field) \
DEFINE_PROP_BIT("indirect_desc", _state, _field, \