[PATCH v4 3/5] powerpc/mce: Hookup derror (load/store) UE errors

[Balbir Singh]

On Mon, Oct 16, 2017 at 4:36 PM, Michael Ellerman <mpe at ellerman.id.au> wrote:
> Balbir Singh <bsingharora at gmail.com> writes:
>
>> diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
>> index b76ca19..0e584d5 100644
>> --- a/arch/powerpc/kernel/mce_power.c
>> +++ b/arch/powerpc/kernel/mce_power.c
>> @@ -27,6 +27,36 @@
>>  #include <asm/mmu.h>
>>  #include <asm/mce.h>
>>  #include <asm/machdep.h>
>> +#include <asm/pgtable.h>
>> +#include <asm/pte-walk.h>
>> +#include <asm/sstep.h>
>> +#include <asm/exception-64s.h>
>> +
>> +/*
>> + * Convert an address related to an mm to a PFN. NOTE: we are in real
>> + * mode, we could potentially race with page table updates.
>> + */
>
> That will blow some serious chunks if we're on pseries.
>
> It seems it can't be triggered on pseries at the moment, but only
> because of the feature section around the call to
> machine_check_handle_early().
>
> We should maybe move the powernv only code in here inside an #ifdef
> POWERNV, just for documentation purposes. But we can do that later.
>

Will do that as a follow up thanks! I think the entire mce_power.c and mce.c
can move to pseries, will validate with Mahesh and Nick as well.

Balbir