From: "Luck, Tony" <tony.luck@intel.com>
To: li guang <lig.fnst@cn.fujitsu.com>, Tang Chen <tangchen@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>,
"H. Peter Anvin" <hpa@zytor.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"jiang.liu@huawei.com" <jiang.liu@huawei.com>,
"wujianguo@huawei.com" <wujianguo@huawei.com>,
"wency@cn.fujitsu.com" <wency@cn.fujitsu.com>,
"laijs@cn.fujitsu.com" <laijs@cn.fujitsu.com>,
"linfeng@cn.fujitsu.com" <linfeng@cn.fujitsu.com>,
"yinghai@kernel.org" <yinghai@kernel.org>,
"rob@landley.net" <rob@landley.net>,
"minchan.kim@gmail.com" <minchan.kim@gmail.com>,
"mgorman@suse.de" <mgorman@suse.de>,
"rientjes@google.com" <rientjes@google.com>,
"guz.fnst@cn.fujitsu.com" <guz.fnst@cn.fujitsu.com>,
"rusty@rustcorp.com.au" <rusty@rustcorp.com.au>,
"lliubbo@gmail.com" <lliubbo@gmail.com>,
"jaegeuk.hanse@gmail.com" <jaegeuk.hanse@gmail.com>,
"glommer@parallels.com" <glommer@parallels.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH v5 0/5] Add movablecore_map boot option
Date: Fri, 18 Jan 2013 18:29:17 +0000 [thread overview]
Message-ID: <3908561D78D1C84285E8C5FCA982C28F1C988096@ORSMSX108.amr.corp.intel.com> (raw)
In-Reply-To: <1358501031.22331.10.camel@liguang.fnst.cn.fujitsu.com>
> kernel absolutely should not care much about SMBIOS(DMI info),
> AFAIK, every BIOS vendor did not fill accurate info in SMBIOS,
> mostly only on demand when OEMs required SMBIOS to report some
> specific info.
> furthermore, SMBIOS is so old and benifit nobody(in my personal
> opinion), so maybe let's forget it.
The "not having right information" flaw could be fixed by OEMs selling
systems on which it is important for system functionality that it be right.
They could use monetary incentives, contractual obligations, or sharp
pointy sticks to make their BIOS vendor get the table right.
BUT there is a bigger flaw - SMBIOS is a static table with no way to
update it in response to hotplug events. So it could in theory have the
right information at boot time ... there is no possible way for it to be
right as soon as somebody adds, removes or replaces hardware.
-Tony
next prev parent reply other threads:[~2013-01-18 18:29 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-14 9:15 Tang Chen
2013-01-14 9:15 ` [PATCH v5 1/5] x86: get pg_data_t's memory from other node Tang Chen
2013-01-14 9:15 ` [PATCH v5 2/5] page_alloc: add movable_memmap kernel parameter Tang Chen
2013-01-14 22:35 ` Andrew Morton
2013-01-14 9:15 ` [PATCH v5 3/5] page_alloc: Introduce zone_movable_limit[] to keep movable limit for nodes Tang Chen
2013-01-14 9:15 ` [PATCH v5 4/5] page_alloc: Make movablecore_map has higher priority Tang Chen
2013-01-14 9:15 ` [PATCH v5 5/5] page_alloc: Bootmem limit with movablecore_map Tang Chen
2013-01-14 17:31 ` [PATCH v5 0/5] Add movablecore_map boot option H. Peter Anvin
2013-01-14 22:34 ` Andrew Morton
2013-01-14 22:41 ` Luck, Tony
2013-01-14 22:46 ` Andrew Morton
2013-01-16 6:25 ` Yasuaki Ishimatsu
2013-01-16 21:29 ` Andrew Morton
2013-01-16 22:01 ` KOSAKI Motohiro
2013-01-16 23:00 ` H. Peter Anvin
2013-01-17 20:27 ` KOSAKI Motohiro
2013-01-16 22:52 ` H. Peter Anvin
2013-01-17 1:49 ` Tang Chen
2013-01-17 20:20 ` KOSAKI Motohiro
2013-01-17 5:08 ` Yasuaki Ishimatsu
2013-01-17 6:03 ` H. Peter Anvin
2013-01-17 16:30 ` Luck, Tony
2013-01-17 20:28 ` KOSAKI Motohiro
2013-01-18 6:05 ` Yasuaki Ishimatsu
2013-01-18 6:25 ` H. Peter Anvin
2013-01-18 7:38 ` Yasuaki Ishimatsu
2013-01-18 8:08 ` Tang Chen
2013-01-18 9:23 ` li guang
2013-01-18 18:29 ` Luck, Tony [this message]
2013-01-19 1:06 ` Jiang Liu
2013-01-19 7:52 ` Chen Gong
2013-01-21 7:36 ` Yasuaki Ishimatsu
2013-01-15 1:23 ` Yasuaki Ishimatsu
2013-01-15 3:44 ` H. Peter Anvin
2013-01-15 4:04 ` Luck, Tony
2013-01-15 0:05 ` Toshi Kani
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