[Skiboot] ibm,processor-storage-keys property
linuxram at us.ibm.com
Wed Jul 19 13:28:23 AEST 2017
On Tue, Jul 18, 2017 at 08:14:09PM -0700, Haren Myneni wrote:
> On 07/18/2017 06:25 PM, Ram Pai wrote:
> > Can we have ibm,processor-storage-keys property exported through the
> > device tree? I know skiboot does not adhere to PAPR requirements. But
> > without it, the kernel will have to make assumptions based on the
> > processor; which might turn out to be wrong.
> > Currently the kernel is planning on blindly enabling pkey on powernv,
> > assuming the processor has no way of *not* supporting
> > it. But who knows; sometime in the future that assumptions may not hold
> > good.
> > Just a request.
> > Thanks,
> pHyp will not be exporting this property. Will you have separate implementation for powerVM?
phyp does export this property. KVM also exports this property, I think,
have to verify though.
> Can we say from P8 onwards using CPU_FTR?
yes. can be based on CPU_FTR on powernv. But even better would be --
support through device-tree exported by skiboot.
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