[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 0 of 5] Add support for mapping grant references into HVM guests (+ some cleanup)
Add support for mapping grant references into HVM domains, by modifying the P2M table. The first couple of patches just tidy up the current grant table implementation a bit, fixing a couple of bugs in the process, and should be fairly uncontroversial. The fourth patch in the series adds a new HVM op to Xen which allows a HVM guest to map a remote domain's grant reference into its P2M table, which can then be mapped by the pagetables in the usual way. The final patch adds matching support to the Linux unmodified drivers tree, allowing the new operation to actually be used, and also adds a couple of very simple test modules. This isn't actually terribly useful as it stands, because there are no realistic consumers of this interface. I wrote it mostly for the benefit of our closed-source Windows drivers, but that obviously doesn't help people on the list very much. I'm not quite sure what the best way of handling this is; it's clearly better for us for this stuff to go into xen-unstable, rather than being maintained as an out-of-tree patch forever, and it'd be a bit of a waste to force anyone else who wanted this functionality to reinvent it, but it seems odd to add an interface which has no publicly available consumers. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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