AW: Re: __setup_cpu_be problem

[Hollis Blanchard]

On Tue, 2006-02-14 at 10:22 -0800, Geoff Levand wrote:
> 
> Sorry about changing my mind on this Ben, but after reading the Book 4
> docs on page sizes I see that each partition can have independent
> page size settings.  I made the wrong assumption that all partitions
> needed the same size setting.  Based on this, and on Arnd's comments,
> I think in general we will need to setup page sizes in the kernel. 

On Tue, 2006-02-14 at 15:27 -0600, Olof Johansson wrote: 
> 
> Isn't this something that should be configured in the hypervisor /
> partition firmware on the machine then, instead of hacked into the
> kernel? The hypervisor would of course switch HID contents when
> dispatching different partitions, if needed.

I agree with Olof; I don't follow the original leap of logic.

If every partition can have independent page size settings, and
especially if HID6 is a hypervisor-privileged resource as mentioned
earlier, then the hypervisor needs to set it. Only the hypervisor can
restore each partition's different HID6 value when it switches between
them...

-Hollis