linux-kernel - Re: [PATCH v3 5/8] powerpc/pseries: Read rtas partition via pstore

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Message-ID: <1370062185.3766.27.camel@pasglop>
Date:	Sat, 01 Jun 2013 14:49:45 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Aruna Balakrishnaiah <aruna@...ux.vnet.ibm.com>
Cc:	linuxppc-dev@...abs.org, paulus@...ba.org,
	linux-kernel@...r.kernel.org, jkenisto@...ux.vnet.ibm.com,
	tony.luck@...el.com, ananth@...ibm.com, mahesh@...ux.vnet.ibm.com,
	ccross@...roid.com, anton@...ba.org, cbouatmailru@...il.com,
	keescook@...omium.org
Subject: Re: [PATCH v3 5/8] powerpc/pseries: Read rtas partition via pstore

On Thu, 2013-04-25 at 15:48 +0530, Aruna Balakrishnaiah wrote:
> This patch set exploits the pstore subsystem to read details of rtas partition
> in NVRAM to a separate file in /dev/pstore. For instance, rtas details will be
> stored in a file named [rtas-nvram-4].
> 
 .../...

> diff --git a/include/linux/pstore.h b/include/linux/pstore.h
> index 75d0176..d7a8fe9 100644
> --- a/include/linux/pstore.h
> +++ b/include/linux/pstore.h
> @@ -35,6 +35,8 @@ enum pstore_type_id {
>  	PSTORE_TYPE_MCE		= 1,
>  	PSTORE_TYPE_CONSOLE	= 2,
>  	PSTORE_TYPE_FTRACE	= 3,
> +	/* PPC64 partition types */
> +	PSTORE_TYPE_PPC_RTAS	= 4,
>  	PSTORE_TYPE_UNKNOWN	= 255
>  };
>  

Not sure about that list...

What do you mean by "RTAS" ? The error logs ? What about our "common"
partition (firmware settings ?). We should probably at least define
a generic PSTORE_TYPE_FIRMWARE for firmware private stuff...

Cheers,
Ben.


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