From: linas@austin.ibm.com (Linas Vepstas)
To: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
Subject: Re: [patch v2] PS3: Add os-area database routines
Date: Tue, 9 Oct 2007 12:15:47 -0500 [thread overview]
Message-ID: <20071009171547.GH4350@austin.ibm.com> (raw)
In-Reply-To: <470AD44C.5080305@am.sony.com>
On Mon, Oct 08, 2007 at 06:07:24PM -0700, Geoff Levand wrote:
> Subject: PS3: Add os-area database routines
>
> Add support for a simple tagged database in the PS3 flash rom
> os-area. The database allows the flash rom os-area to be shared
> between a bootloader and installed operating systems. The
> application ps3-flash-util or the library libps3-utils from the
> ps3-utils package can be used for userspace database operations.
Perhaps I missed the discussion; but .. out of general curiosity,
what is the relation between this and the ppc_md.nvram_* system?
I note that pseries, powermac, chrp, celleb implement the nvram calls,
but cell and ps3 do not. So clearly, whatever this is, its not
layered on top of nvram?
FWIW, I don't quite understand the nvram system; it seems to have
partitions; one part is an "os area", and a chuck of it is set
up as a file system.
So I'm wondering -- wouldn't the DB os-area be "generically
interesting" to other ppowerpc platforms? Maybe even other arches?
And why isn't this built on top of the nvram structure? ... etc?
--linas
prev parent reply other threads:[~2007-10-09 17:15 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-06 21:35 [patch 0/6] PS3 os area patches for 2.6.24 geoffrey.levand
2007-10-06 21:35 ` [patch 1/6] PS3: Cleanup of os-area.c geoffrey.levand
2007-10-06 21:35 ` [patch 2/6] PS3: Remove unused os-area params geoffrey.levand
2007-10-08 14:00 ` Ranulf Doswell
2007-10-08 17:53 ` Geoff Levand
2007-10-08 22:38 ` Ranulf Doswell
2007-10-08 22:50 ` Geoff Levand
2007-10-06 21:35 ` [patch 3/6] PS3: os-area workqueue processing geoffrey.levand
2007-10-06 21:35 ` [patch 4/6] PS3: Add os-area rtc_diff set/get routines geoffrey.levand
2007-10-06 21:35 ` [patch 5/6] PS3: Save os-area params to device tree geoffrey.levand
2007-10-06 21:35 ` [patch 6/6] PS3: Add os-area database routines geoffrey.levand
2007-10-08 8:27 ` Geert Uytterhoeven
2007-10-09 1:08 ` Geoff Levand
2007-10-08 12:16 ` Geert Uytterhoeven
2007-10-09 1:12 ` Geoff Levand
2007-10-08 13:48 ` Ranulf Doswell
2007-10-08 17:52 ` Geoff Levand
2007-10-08 22:59 ` Ranulf Doswell
2007-10-08 23:36 ` Geoff Levand
2007-10-09 9:35 ` Geert Uytterhoeven
2007-10-09 12:23 ` Ranulf Doswell
2007-10-09 1:07 ` [patch v2] " Geoff Levand
2007-10-09 11:38 ` Geert Uytterhoeven
2007-10-09 17:15 ` Linas Vepstas [this message]
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