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From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Mika Penttilä" <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.
Date: Wed, 15 Jul 2015 14:26:12 +0800	[thread overview]
Message-ID: <55A5FD04.1090003@cn.fujitsu.com> (raw)
In-Reply-To: <55A5F109.3020705@linux.intel.com>


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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WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Mika Penttilä" <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.
Date: Wed, 15 Jul 2015 14:26:12 +0800	[thread overview]
Message-ID: <55A5FD04.1090003@cn.fujitsu.com> (raw)
In-Reply-To: <55A5F109.3020705@linux.intel.com>


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. :)

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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see: http://www.linux-mm.org/ .
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WARNING: multiple messages have this Message-ID (diff)
From: Tang Chen <tangchen@cn.fujitsu.com>
To: "Jiang Liu" <jiang.liu@linux.intel.com>,
	"Mika Penttilä" <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.
Date: Wed, 15 Jul 2015 14:26:12 +0800	[thread overview]
Message-ID: <55A5FD04.1090003@cn.fujitsu.com> (raw)
In-Reply-To: <55A5F109.3020705@linux.intel.com>


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. :)

  reply	other threads:[~2015-07-15  6:25 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-07  9:30 [PATCH 0/5] Make cpuid <-> nodeid mapping persistent Tang Chen
2015-07-07  9:30 ` Tang Chen
2015-07-07  9:30 ` Tang Chen
2015-07-07  9:30 ` [PATCH 1/5] x86, gfp: Cache best near node for memory allocation Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 21:48   ` Tejun Heo
2015-07-15 21:48     ` Tejun Heo
2015-08-04  3:36     ` Tang Chen
2015-08-04  3:36       ` Tang Chen
2015-08-04  3:36       ` Tang Chen
2015-08-04  8:05       ` Jiang Liu
2015-08-04  8:05         ` Jiang Liu
2015-08-04  8:24         ` Tang Chen
2015-08-04  8:24           ` Tang Chen
2015-08-04  8:24           ` Tang Chen
2015-08-09  6:15         ` Tang Chen
2015-08-09  6:15           ` Tang Chen
2015-08-12  1:53           ` Jiang Liu
2015-08-12  1:53             ` Jiang Liu
2015-08-04  8:26       ` gongzhaogang
2015-08-04  8:26         ` gongzhaogang
2015-08-04  8:53         ` Tang Chen
2015-08-04  8:58         ` Tang Chen
2015-07-07  9:30 ` [PATCH 2/5] x86, acpi, cpu-hotplug: Enable acpi to register all possible cpus at boot time Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-07  9:30 ` [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-07 11:14   ` Mika Penttilä
2015-07-07 11:14     ` Mika Penttilä
2015-07-15  3:33     ` Tang Chen
2015-07-15  3:33       ` Tang Chen
2015-07-15  3:33       ` Tang Chen
2015-07-15  5:35       ` Jiang Liu
2015-07-15  5:35         ` Jiang Liu
2015-07-15  5:35         ` Jiang Liu
2015-07-15  6:26         ` Tang Chen [this message]
2015-07-15  6:26           ` Tang Chen
2015-07-15  6:26           ` Tang Chen
2015-07-15 22:02   ` Tejun Heo
2015-07-15 22:02     ` Tejun Heo
2015-07-07  9:30 ` [PATCH 4/5] x86, acpi, cpu-hotplug: Enable MADT APIs to return disabled apicid Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 22:06   ` Tejun Heo
2015-07-15 22:06     ` Tejun Heo
2015-07-07  9:30 ` [PATCH 5/5] x86, acpi, cpu-hotplug: Set persistent cpuid <-> nodeid mapping when booting Tang Chen
2015-07-07  9:30   ` Tang Chen
2015-07-15 22:13 ` [PATCH 0/5] Make cpuid <-> nodeid mapping persistent Tejun Heo
2015-07-15 22:13   ` Tejun Heo
2015-07-23  4:44   ` Tang Chen
2015-07-23  4:44     ` Tang Chen
2015-07-23  4:44     ` Tang Chen
2015-07-23 18:32     ` Tejun Heo
2015-07-23 18:32       ` Tejun Heo
  -- strict thread matches above, loose matches on Subject: below --
2015-07-01  4:45 Tang Chen
2015-07-01  4:45 ` [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping Tang Chen

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