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Groups > linux.kernel > #1184288 > unrolled thread
| Started by | Jiang Liu <jiang.liu@linux.intel.com> |
|---|---|
| First post | 2015-07-15 07:40 +0200 |
| Last post | 2015-07-15 08:30 +0200 |
| Articles | 2 — 2 participants |
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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
| From | Jiang Liu <jiang.liu@linux.intel.com> |
|---|---|
| Date | 2015-07-15 07:40 +0200 |
| Subject | Re: [PATCH 3/5] x86, acpi, cpu-hotplug: Introduce apicid_to_cpuid[] array to store persistent cpuid <-> apicid mapping. |
| Message-ID | <pMnAd-6xs-5@gated-at.bofh.it> |
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/
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| From | Tang Chen <tangchen@cn.fujitsu.com> |
|---|---|
| Date | 2015-07-15 08:30 +0200 |
| Message-ID | <pMomB-7Gz-13@gated-at.bofh.it> |
| In reply to | #1184288 |
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 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/
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