[PATCH] powerpc/85xx: disable timebase synchronization under the hypervisor

Scott Wood scottwood at freescale.com
Wed Jun 15 09:25:17 EST 2011


On Tue, 14 Jun 2011 18:15:26 -0500
Timur Tabi <timur at freescale.com> wrote:

> Scott Wood wrote:
> > FWIW, it's not supported under KVM either -- though we don't support an SMP
> > guest under KVM yet, and KVM silently ignores it rather than logs errors as
> > the FSL HV does.
> 
> Does KVM set the root compatible to "fsl,P4080DS-hv"?

No, Qemu/KVM like to pretend they're fully emulating concrete hardware,
even though there's stuff missing.

The only upstream e500 KVM platform is currently mpc8544ds.

For now, there's no SMP KVM guest support.  Maybe kexec can be fixed to not
hard-reset the core by the time that changes. :-)

-Scott



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