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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next prev parent reply other threads:[~2015-07-15 6:25 UTC|newest]
Thread overview: 24+ 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 ` [PATCH 1/5] x86, gfp: Cache best near node for memory allocation Tang Chen
2015-07-15 21:48 ` Tejun Heo
2015-08-04 3:36 ` Tang Chen
2015-08-04 8:05 ` Jiang Liu
2015-08-04 8:24 ` Tang Chen
2015-08-09 6:15 ` Tang Chen
2015-08-12 1:53 ` Jiang Liu
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 ` [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping Tang Chen
2015-07-07 11:14 ` Mika Penttilä
2015-07-15 3:33 ` Tang Chen
2015-07-15 5:35 ` Jiang Liu
2015-07-15 6:26 ` Tang Chen [this message]
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
2015-07-15 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
2015-07-15 22:13 ` [PATCH 0/5] Make cpuid <-> nodeid mapping persistent Tejun Heo
2015-07-23 4:44 ` Tang Chen
2015-07-23 18:32 ` Tejun Heo
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