google / alioth / 42775620329

42%

Build Type

push

github

Committed by Lencerf

Commit Message

feat(virtio): set DEVICE_NEEDS_RESET when a device fails

When the worker of a running device fails, e.g. because the driver has
set up a queue that the device cannot use, the device silently stops
serving the queues.

Set DEVICE_NEEDS_RESET and send a configuration change notification,
which the virtio spec asks of a device that enters an error state that
needs a reset (VirtIO spec 1.4, Sec 2.1.2). The PCI transport sets the
bit when the driver reads device_status, and the vhost-user backend
when the frontend reads the status. Resetting the device clears it.

Signed-off-by: Changyuan Lyu <changyuanl@google.com>

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943 of 1740 branches covered (54.2%)

Branch coverage included in aggregate %.

13 of 14 new or added lines in 3 files covered. (92.86%)

159 existing lines in 8 files now uncovered.

6638 of 16416 relevant lines covered (40.44%)

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