Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping.

From	Tang Chen <tangchen@cn.fujitsu.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping.
Date	2015-07-15 08:30 +0200
Message-ID	<pMomB-7Gz-13@gated-at.bofh.it> (permalink)
References	<pJxw5-3UB-5@gated-at.bofh.it> <pJxw7-3UB-49@gated-at.bofh.it> <pJz4T-4Y0-37@gated-at.bofh.it> <pMlI6-3Pz-1@gated-at.bofh.it> <pMnAd-6xs-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 07/15/2015 01:35 PM, Jiang Liu wrote:
> 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.
> .
>

Ha, how foolish I am.

And yes, cpu0 is not reserved when apicid == boot_cpu_physical_apicid
comes true.

Will update the patch.

Thanks. :)
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Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[]  array to store persistent cpuid <-> apicid mapping. Jiang Liu <jiang.liu@linux.intel.com> - 2015-07-15 07:40 +0200
  Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[]  array to store persistent cpuid <-> apicid mapping. Tang Chen <tangchen@cn.fujitsu.com> - 2015-07-15 08:30 +0200

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