Re: [PATCH v2] powerpc/book3s: Recover from MC in opal on SCOM read via MMIO.

2014-03-29 Thread Benjamin Herrenschmidt
On Sat, 2014-03-29 at 10:27 +0530, Mahesh J Salgaonkar wrote: > From: Mahesh Salgaonkar > > Detect and recover from machine check when inside opal on a special > scom load instructions. On specific SCOM read via MMIO we may get a machine > check exception with SRR0 pointing inside opal. To recove

[PATCH v2] powerpc/book3s: Recover from MC in opal on SCOM read via MMIO.

2014-03-28 Thread Mahesh J Salgaonkar
From: Mahesh Salgaonkar Detect and recover from machine check when inside opal on a special scom load instructions. On specific SCOM read via MMIO we may get a machine check exception with SRR0 pointing inside opal. To recover from MC in this scenario, get a recovery instruction address and retur