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 for <linuxppc-dev@lists.ozlabs.org> from <stewart@linux.vnet.ibm.com>;
 Mon, 6 Jun 2016 23:25:27 -0600
From: Stewart Smith <stewart@linux.vnet.ibm.com>
To: xinhui <xinhui.pan@linux.vnet.ibm.com>,
 Michael Ellerman <mpe@ellerman.id.au>, linux-kernel@vger.kernel.org,
 linuxppc-dev@lists.ozlabs.org
Cc: Andrzej Hajda <a.hajda@samsung.com>,
 Christophe Jaillet <christophe.jaillet@wanadoo.fr>,
 Nathan Fontenot <nfont@linux.vnet.ibm.com>,
 Hari Bathini <hbathini@linux.vnet.ibm.com>,
 Paul Mackerras <paulus@samba.org>, tglx@linutronix.de
Subject: Re: powerpc/nvram: Fix an incorrect partition merge
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Date: Tue, 07 Jun 2016 15:24:16 +1000
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xinhui <xinhui.pan@linux.vnet.ibm.com> writes:
>> Has it always been broken?
>>
>
> no. after nvram partition corruption hit, all nvram partitions will be
> erased and re-alloc after the second machine reboot.
> I don't know who does it but i guess it is the firmware. :)

It is. PAPR says we format NVRAM when it's corrupted. This is also true
for NVRAM for PowerNV (not just pseries guest).

-- 
Stewart Smith
OPAL Architect, IBM.