"Oliver O'Halloran" [off-list ref] writes:

On Fri, Jun 28, 2019 at 1:39 PM Michael Ellerman [off-list ref] wrote:

quoted

Vaibhav Jain [off-list ref] writes:

quoted

*snip*

How can we be changing the meaning of HCALL numbers without breaking all
existing usages?

The changed one being changed here were never used by linux or
implemented by either hypervisor.

OK. Please say so in the change log so that it's clear it's not a
behaviour change.

quoted

Where are these hypervisor calls documented?

In an internal spec from one the phyp guys. I have been complaining
about it not being open (or merged into PAPR at the very least), but
it doesn't look like there's been any movement there.

Please send a patch for Documentation/powerpc/ describing the API for
the hypercalls we're using.

cheers