RE: [Xen-devel] Re: [PATCH 0/12] PV on HVM Xen

[Stefano Stabellini]

On Fri, 2 Jul 2010, Dan Magenheimer wrote:
> > From: Stefano Stabellini [mailto:stefano.stabellini@xxxxxxxxxxxxx]
> > 
> > On Thu, 1 Jul 2010, Dan Magenheimer wrote:
> > > Hi Stefano --
> > >
> > > What versions of Xen are compatible with this series?
> > > I.e. is 4.0 required?  Are all Xen-side changes in
> > > official 4.0.0?  Or only in 4.0-testing (and therefore
> > > will be in 4.0.1)?  Or only in xen-unstable?
> > >
> > > If post-4.0.0 xen changes are necessary, could you point
> > > out the changesets?
> > 
> > Any Xen version is going to work, but you need unstable to get all the
> > features.
> > 
> > In particular you need these patches:
> > 
> > - 21647: implement HVMOP_pagetable_dying
> > 
> > - 21493: update_runstate_area for 32 bit PV on HVM guests
> > 
> > - 21449: implement vector callback for evtchn delivery
> > 
> > - 21445: TSC handling cleanups (version 2)
> > 
> > - 21341: Export timer hypercalls to HVM guests too
> > 
> > - 21339: TSC handling cleanups
> 
> Thanks for the thorough reply!  Any reason that any of these
> cannot or should not be back-ported to go into 4.0.1?
> 

They should be safe to backport, the only ones we should be extra
careful are the TSC related patches, and you were the one to raise that
complain :)
If you have some spare time to test 21445 and 21339 on 4.0.1 to make
sure that everything keeps working as expected, then we can safely
apply them to xen 4.0 testing.

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