On Thu, 2013-08-29 at 14:52 +1000, Paul Mackerras wrote: > We are going to need a way to do that for pseries guests. So for > example if we are running on a POWER8 machine and using KVM, we would > want to be able to tell qemu that we want a POWER7 machine and have > qemu put 0x0f000003 in the device tree, and also tell KVM to enable > POWER7 compatibility mode when running the guest, presumably by > setting the PVR for the guest to 0x0f000003. That PVR setting doesn't > (and can't) modify the PVR seen by the guest, since the hardware > doesn't provide any way to virtualize the PVR, but we will make it set > the compatibility mode for the guest. > > How do you think we should handle this in qemu?
And how does that relate to what we will do during reconfiguration reboots ? Cheers, Ben.
