On Tue, Oct 31, 2023 at 10:30:41AM +0200, Yishai Hadas wrote:

quoted

And further, is caller expected not to invoke several of these
in parallel on the same device? If yes this needs to be
documented. I don't see where does vfio enforce this if yes.

Please have a look at virtiovf_issue_legacy_rw_cmd() from patch #9.

It has a lock on its VF device to serialize access to the bar, it includes
calling this API.

Yishai

OK so if caller must serialize accesses then please document this assumption.

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