Wei Liu writes ("Re: [Xen-devel] [PATCH 00/22] Vixen: A PV-in-HVM shim"): > On Mon, Jan 08, 2018 at 08:02:07AM -0800, Anthony Liguori wrote: > > OTOH, the HVM version of the series requires no tools changes and > > works on Xen versions going back to 3.4 (at least).
That depends, I think, on how you are selecting the guest kernel. libxl (at least, older libxls) don't support direct kernel boot in HVM mode. So if you were using kernel= in your config file that won't work without libxl changes which are really hard to do and also maintain ABI compatibility. Likewise bootloader= (eg bootloader="pygrub"). > > If it was entirely my call, I would work on merging HVM shim > > first, get a 4.10 stable release cut with it, and then focus on > > getting PVH shim in place for the 4.11 release. I think this is > > the right balance of addressing the short term needs while also > > having the best long term solution. > > Not my call either. I will wait for security team member and stable tree > maintainers to weight in. Since shim users are going to be using unstable/4.10 as the shim anyway, I think a good priority is indeed getting a good solution for 4.10. Personally I am not doing any Xen review work or commit work right now that is not related to Meltdown/Spectre. Everything else has to wait. Furthermore I think we should avoid committing anything to xen-unstable that will complicate our efforts on the shim. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel