[PATCH] KVM: PPC: Book3S HV P9: Optimise loads around context switch

[Fabiano Rosas]

Nicholas Piggin <npiggin at gmail.com> writes:

> It is better to get all loads for the register values in flight
> before starting to switch LPID, PID, and LPCR because those
> mtSPRs are expensive and serialising.
>
> This also just tidies up the code for a potential future change
> to the context switching sequence.
>
> Signed-off-by: Nicholas Piggin <npiggin at gmail.com>

Reviewed-by: Fabiano Rosas <farosas at linux.ibm.com>