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SubjectRe: [linux-next][bisected 1c0eaf0f] Today's next kernel fails to boot on ppc bare-metal
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On Mon, 2017-07-17 at 12:10 +1000, Michael Ellerman wrote:
> Hi Abdul,
>
> Thanks for the bug report.
>
> Abdul Haleem <abdhalee@linux.vnet.ibm.com> writes:
> > Hi
> >
> > Today's linux-next fails to boot on ppc bare-metal
> >
> > Test: Boot
> > Machine: Power 8 bare-metal
> > kernel: 4.12.0-next-20170713
> > gcc: version 4.8.5
> > config : Tul-NV-config attached.
>
> [swearing redacted]
>
> Does this help?

Yes, it fixes the boot issue. Thanks for the fix.

With below patch, I was able to successfully boot
4.13.0-rc1-next-20170717 kernel on ppc bare-metal

Reported-and-tested-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>

>
> diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
> index 9b87abb178f0..cad6b57ce494 100644
> --- a/arch/powerpc/platforms/powernv/opal.c
> +++ b/arch/powerpc/platforms/powernv/opal.c
> @@ -78,7 +78,7 @@ void opal_configure_cores(void)
> * ie. Host hash supports hash guests
> * Host radix supports hash/radix guests
> */
> - if (cpu_has_feature(CPU_FTR_ARCH_300)) {
> + if (early_cpu_has_feature(CPU_FTR_ARCH_300)) {
> reinit_flags |= OPAL_REINIT_CPUS_MMU_HASH;
> if (early_radix_enabled())
> reinit_flags |= OPAL_REINIT_CPUS_MMU_RADIX;
>


--
Regard's

Abdul Haleem
IBM Linux Technology Centre



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