Subject: Re: [PATCH V4] POWERPC: BOOK3S: KVM: Use the saved dar value and generic make_dsisr

From: Paul Mackerras <[email-masked]>
Date: Tue, 6 May 2014 10:41:33 +1000

On Mon, May 05, 2014 at 01:19:30PM +0200, Alexander Graf wrote:
> On 05/04/2014 07:21 PM, Aneesh Kumar K.V wrote:
> >+#ifdef CONFIG_PPC_BOOK3S_64
> >+	return vcpu->arch.fault_dar;
> 
> How about PA6T and G5s?

G5 sets DAR on an alignment interrupt.

As for PA6T, I don't know for sure, but if it doesn't, ordinary
alignment interrupts wouldn't be handled properly, since the code in
arch/powerpc/kernel/align.c assumes DAR contains the address being
accessed on all PowerPC CPUs.

Did PA Semi ever publish a user manual for the PA6T, I wonder?

Paul.