virtio: virtio 1.0 cs04 spec compliance for reset

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[ Upstream commit 05dbcb4307 ]

The spec says: after writing 0 to device_status, the driver MUST wait
for a read of device_status to return 0 before reinitializing the
device.

Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

...

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Michael S. Tsirkin 2016-04-03 15:23:37 +03:00 • committed by Sasha Levin

parent e649832a3c

commit 0ffbec8de4

1 changed files with 8 additions and 3 deletions

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drivers/virtio/virtio_pci_modern.c

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