Re: [PATCH][RFC] Xen PV-on-HVM guest support

2009-10-15 Thread Gerd Hoffmann
On 10/15/09 09:17, Jan Kiszka wrote: Ed Swierk wrote: Overall it seems pretty solid for Linux PV-on-HVM guests. I think more work is needed to support full PV guests, but I don't know how much. Have folks been asking about PV-on-HVM or full PV? Not all requests weren't that concrete /wrt

Re: [PATCH][RFC] Xen PV-on-HVM guest support

2009-10-15 Thread Jan Kiszka
Ed Swierk wrote: Thanks for the feedback; I'll post a new version shortly. On Tue, Oct 13, 2009 at 11:45 PM, Jan Kiszka jan.kis...@web.de wrote: Interesting stuff. How usable is your work at this point? I've no immediate demand, but the question if one could integrate Xen guests with KVM

Re: [PATCH][RFC] Xen PV-on-HVM guest support

2009-10-14 Thread Jan Kiszka
Ed Swierk wrote: As we discussed a while back, support for Xen PV-on-HVM guests can be implemented almost entirely in userspace, except for handling one annoying MSR that maps a Xen hypercall blob into guest address space. A generic mechanism to delegate MSR writes to userspace seems

Re: [PATCH][RFC] Xen PV-on-HVM guest support

2009-10-14 Thread Ed Swierk
Thanks for the feedback; I'll post a new version shortly. On Tue, Oct 13, 2009 at 11:45 PM, Jan Kiszka jan.kis...@web.de wrote: Interesting stuff. How usable is your work at this point? I've no immediate demand, but the question if one could integrate Xen guests with KVM already popped up more

[PATCH][RFC] Xen PV-on-HVM guest support

2009-10-13 Thread Ed Swierk
As we discussed a while back, support for Xen PV-on-HVM guests can be implemented almost entirely in userspace, except for handling one annoying MSR that maps a Xen hypercall blob into guest address space. A generic mechanism to delegate MSR writes to userspace seems overkill and risks