Subject: Re: powerpc/64s: Use relon prolog for EXC_VIRT_OOL_MASKABLE_HV handlers

From: Michael Ellerman <[email-masked]>
Date: Fri, 21 Apr 2017 14:09:43 +1000 (AEST)

On Thu, 2017-04-13 at 09:45:48 UTC, Nicholas Piggin wrote:
> Hypervisor Virtualization and Directed Hypervisor Doorbell interrupt
> handlers use the macro EXC_VIRT_OOL_MASKABLE_HV for their relocation-on
> handlers, which calls MASKABLE_RELON_EXCEPTION_HV_OOL, which uses the
> real mode interrupt prolog.
> 
> Use the RELON variant instead to reduce overhead.
> 
> Fixes: 1707dd1613 ("powerpc: Save CFAR before branching in interrupt entry paths")
> Cc: Paul Mackerras <[email-masked]>
> Signed-off-by: Nicholas Piggin <[email-masked]>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/a050d20d024dc3e1b988e715e2d811

cheers