Message-ID: <55A5F109.3020705@linux.intel.com>
Date: Wed, 15 Jul 2015 13:35:05 +0800
From: Jiang Liu <jiang.liu@linux.intel.com>
Organization: Intel
User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0
MIME-Version: 1.0
To: Tang Chen <tangchen@cn.fujitsu.com>,
        =?UTF-8?B?TWlrYSBQZW50dGlsw6Q=?= <mika.j.penttila@gmail.com>
CC: rjw@rjwysocki.net, gongzhaogang@inspur.com, x86@kernel.org,
        linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[]
 array to store persistent cpuid <-> apicid mapping.
References: <1436261425-29881-1-git-send-email-tangchen@cn.fujitsu.com>	<1436261425-29881-4-git-send-email-tangchen@cn.fujitsu.com> <CAChTCPw6ZLs7XgApfN1exeB6TVcQji6ryq+HrK-admp=FGfiTA@mail.gmail.com> <55A5D4A5.8040806@cn.fujitsu.com>
In-Reply-To: <55A5D4A5.8040806@cn.fujitsu.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 659
Lines: 20

On 2015/7/15 11:33, Tang Chen wrote:
> Hi Mika,
> 
> On 07/07/2015 07:14 PM, Mika Penttilä wrote:
>> I think you forgot to reserve CPU 0 for BSP in cpuid mask.
> 
> Sorry for the late reply.
> 
> I'm not familiar with BSP.  Do you mean in get_cpuid(),
> I should reserve 0 for physical cpu0 in BSP ?
> 
> Would you please share more detail ?

BSP stands for "Bootstrapping Processor". In other word,
BSP is CPU0.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/