[win-pv-devel] XENIFACE not attaching to XENBUS

[RafaÅ WojdyÅa <omeg@xxxxxxxxxxxxxxxxxxxxxx>]

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Hello,

I've noticed something strange when I was experimenting with adding new
APIs to Xenbus. I added a Store API to set key permissions and
incremented the store interface version as usual (to 2 from 1).
Everything seemed fine, the driver installed normally. I rebuilt
Xeniface with the new header and proceeded to install it on the test
system. The install went fine as well. However, after a reboot the
Xeniface driver wasn't being loaded. Or, to be more precise, it got
loaded and then immediately unloaded by PnP for some reason. I haven't
changed INFs or anything except the store interface header and the .c
file.

When I moved my new function to the v1 interface and removed the v2
everything went back to normal. That's not a solution of course, just
wanted to test what would happen. I'm not sure what's going on, is there
some limit to the number of revisions? With many different interface
versions the revision count seems to be going up very quickly...

I've attached a debug log from test system boot that shows xeniface
being loaded and unloaded.

- --
RafaÅ WojdyÅa
Qubes Tools for Windows developer
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