Title Resolve VIRTIO-130: 4.1.4.5 ISR status capability diagram incorrect
Description
Please vote Yes if you agree with all of the following.
If you disagree, please vote No.
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I move that:
The TC agrees to resolve the following specification issue:
VIRTIO-130: 4.1.4.5 ISR status capability diagram incorrect
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4.1.4.5 ISR status capability diagram has the "Device Configuration Interrupt " as bit 0, and the "Queue Interrupt" as bit 1.  This is the wrong way around: it disagrees with the legacy implementations, as well as the spec elsewhere:

4.1.5.3 Virtqueue Interrupts From The Device

If an interrupt is necessary for a virtqueue, the device would typically act as follows:

    If MSI-X capability is disabled:
        Set the lower bit of the ISR Status field for the device.
        
...
4.1.5.4 Notification of Device Configuration Changes

Some virtio PCI devices can change the device configuration state, as reflected in the device-specific configuration region of the device. In this case:

    If MSI-X capability is disabled:
        Set the second lower bit of the ISR Status field for the device. 
...


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The TC accepts the following proposed changes to the specification:
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Reverse the two in the diagram.

Patch on mailing list:
https://lists.oasis-open.org/archives/virtio/201502/msg00033.html
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The TC agrees to include the above change(s) in specification version(s) "virtio 1.0 cs03", and future versions of the
specification.

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Ballot Options Ballot has closed
[ ] Yes
[ ] No
[ ] Abstain
Opening Date Sun, Mar 15 2015 10:15 am EDT
Closing Date Sun, Mar 22 2015 10:15 am EDT
Ballot has closed.

Referenced Items

Name Type Date Actions

02771: Resolve VIRTIO-130: 4.1.4.5 ISR status capability diagram incorrect

Document (Archive)

2015-03-22