Subject: Re: [RFC PATCH 11/17] PowerPC: booke64: Fix machine check handler to use the right prolog

From: Benjamin Herrenschmidt <[email-masked]>
Date: Wed, 27 Jun 2012 08:13:38 +1000

On Mon, 2012-06-25 at 15:26 +0300, Mihai Caraman wrote:
> Machine check exception handler was using a wrong prolog. Hypervisors, like
> KVM, which are called early from the exception handler rely on the interrupt
> source.
> 
> Signed-off-by: Mihai Caraman <[email-masked]>

Ack.

Please separate your "core" patches from your KVM series and submit them
separately. I'll take care of the core Book3E part.

Cheers,
Ben.

> ---
>  arch/powerpc/kernel/exceptions-64e.S |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
> index 52aa96b..06f7aec 100644
> --- a/arch/powerpc/kernel/exceptions-64e.S
> +++ b/arch/powerpc/kernel/exceptions-64e.S
> @@ -290,7 +290,7 @@ interrupt_end_book3e:
>  
>  /* Machine Check Interrupt */
>  	START_EXCEPTION(machine_check);
> -	CRIT_EXCEPTION_PROLOG(0x200, PROLOG_ADDITION_NONE)
> +	MC_EXCEPTION_PROLOG(0x200, PROLOG_ADDITION_NONE)
>  //	EXCEPTION_COMMON(0x200, PACA_EXMC, INTS_DISABLE)
>  //	bl	special_reg_save_mc
>  //	addi	r3,r1,STACK_FRAME_OVERHEAD