Re: [PATCH 00/27] Add KVM support for Book3s_64 (PPC64) hosts v4

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> Yes, and I really don't want to overdo it. PV for mfmsr/mtmsr and  
> mfspr/mtspr is really necessary. X86 simply has that in hardware.

Note to Avi: This is also because we aren't actually using the
virtualization feature of the processor, but instead running
the guest basically in user space.

The reason for that is that today, you pretty much cannot access
the "hypervisor" mode of the CPU on any ppc64 machine, it's either
disabled by the service processor (Apple G5s, AFAIK PowerStation too) or
you are already running under some kind of hypervisor (All IBM machines,
PS3)...

Cheers,
Ben.


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