linux-kernel - Re: [PATCH] ibft, x86: Change reserve_ibft_region() to find_ibft

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Message-ID: <4BB50938.9040000@kernel.org>
Date:	Thu, 01 Apr 2010 13:59:36 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Konrad Rzeszutek Wilk <konrad@...nok.org>
CC:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Peter Jones <pjones@...hat.com>,
	Konrad Rzeszutek Wilk <konrad@...nel.org>,
	Jan Beulich <jbeulich@...ell.com>
Subject: Re: [PATCH] ibft, x86: Change reserve_ibft_region() to find_ibft_region()

On 04/01/2010 01:12 PM, Konrad Rzeszutek Wilk wrote:
> On Wed, Mar 31, 2010 at 07:07:32PM -0700, Yinghai Lu wrote:
>>
>>
>> So arch code could decide the way to reserve the ibft.
>>
>> And We should reserve ibft as early as possible, instead of BOOTMEM stage,
>> in case the table is in RAM range and is not reserved by BIOS.
> 
> What test vehicle did you use to find this bug?

code review for CONFIG_NO_BOOTMEM

reserve_bootmem() should only be used for converting entries reserved by reserved_early()

so When we are using CONFIG_NO_BOOTMEM, reserve_bootmem() is killed.

> 
> 
> .. snip..
>> +	if (size)
>> +		reserve_early_overlap_ok(addr, addr + size, "ifbt");
> 							     ^^^^ - ibft
thanks, will change it.

Yinghai
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