Title Resolve VIRTIO-140: add reminder for future devices to avoid writeable 64 bit fields
Description
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If you disagree, please vote No.
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I move that:
The TC agrees to resolve the following specification issue:
VIRTIO-140: add reminder for future devices to avoid writeable 64 bit fields
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Problems happen if any config space action register is wider than 32 bits, because a 32 bit OS cannot now set it atomically. 
See http://article.gmane.org/gmane.comp.emulators.virtio.devel/791
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The TC accepts the following proposed changes to the specification:
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[PATCH v2]  give explicit guidance on the use of 64 bit fields

Just saying 64 bit fields may not be atomic is true, but less helpful
than it might be.  Add explicit guidance about what the consequences of
non-atomicity are

Signed-off-by: James Bottomley 

http://mid.gmane.org/1428868350.2196.40.camel@Odin.com
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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 Thu, Apr 16 2015 7:00 am EDT
Closing Date Thu, Apr 23 2015 7:00 am EDT
Ballot has closed.

Referenced Items