From: Borislav Petkov <bp@alien8.de>
To: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
H Peter Anvin <hpa@zytor.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Asit K Mallick <asit.k.mallick@intel.com>,
Tony Luck <tony.luck@intel.com>,
Arjan Dan De Ven <arjan@linux.intel.com>,
Suresh B Siddha <suresh.b.siddha@intel.com>,
Len Brown <len.brown@intel.com>,
"Srivatssa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>,
Randy Dunlap <rdunlap@xenotime.net>,
Chen Gong <gong.chen@linux.intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-pm <linux-pm@vger.kernel.org>, x86 <x86@kernel.org>
Subject: Re: [PATCH v9 03/12] x86, topology: Don't offline CPU0 if any PIC irq can not be migrated out of it
Date: Tue, 16 Oct 2012 19:03:11 +0200 [thread overview]
Message-ID: <20121016170310.GC12694@x1.osrc.amd.com> (raw)
In-Reply-To: <1350058189-6769-4-git-send-email-fenghua.yu@intel.com>
On Fri, Oct 12, 2012 at 09:09:40AM -0700, Fenghua Yu wrote:
> From: Fenghua Yu <fenghua.yu@intel.com>
>
> If CONFIG_BOOTPARAM_HOTPLUG_CPU is turned on, CPU0 hotplug feature is enabled
> by default.
>
> If CONFIG_BOOTPARAM_HOTPLUG_CPU is not turned on, CPU0 hotplug feature is not
> enabled by default. The kernel parameter cpu0_hotplug can enable CPU0 hotplug
> feature at boot.
>
> Currently the feature is supported on Intel platforms only.
>
> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
> ---
> arch/x86/kernel/topology.c | 50 +++++++++++++++++++++++++++++++++++++------
It is just me or is this whole change better suited for
arch/x86/kernel/cpu/topology.c
where cpu-specific stuff lives anyway?
Thanks.
--
Regards/Gruss,
Boris.
next prev parent reply other threads:[~2012-10-16 17:03 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-12 16:09 [PATCH v9 0/12] x86: Arbitrary CPU hot(un)plug support Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 01/12] doc: Add x86 CPU0 online/offline feature Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 02/12] x86, Kconfig: Add config switch for CPU0 hotplug Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 03/12] x86, topology: Don't offline CPU0 if any PIC irq can not be migrated out of it Fenghua Yu
2012-10-16 17:03 ` Borislav Petkov [this message]
2012-10-16 18:43 ` Yu, Fenghua
2012-10-16 19:40 ` Borislav Petkov
2012-10-12 16:09 ` [PATCH v9 04/12] x86, hotplug: Support functions for CPU0 online/offline Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 05/12] x86, hotplug, suspend: Online CPU0 for suspend or hibernate Fenghua Yu
2012-10-15 20:50 ` Rafael J. Wysocki
2012-10-16 5:35 ` Srivatsa S. Bhat
2012-10-16 16:17 ` Rafael J. Wysocki
2012-10-16 16:30 ` Srivatsa S. Bhat
2012-10-16 22:12 ` Yu, Fenghua
2012-10-17 5:18 ` Rafael J. Wysocki
2012-10-17 17:39 ` Yu, Fenghua
2012-10-18 6:33 ` Rafael J. Wysocki
2012-10-18 6:51 ` Srivatsa S. Bhat
2012-10-17 18:29 ` Yu, Fenghua
2012-10-12 16:09 ` [PATCH v9 06/12] x86-64, hotplug: Add start_cpu0() entry point to head_64.S Fenghua Yu
2012-10-16 16:50 ` Borislav Petkov
2012-10-12 16:09 ` [PATCH v9 07/12] x86-32, hotplug: Add start_cpu0() entry point to head_32.S Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 08/12] x86, hotplug: Wake up CPU0 via NMI instead of INIT, SIPI, SIPI Fenghua Yu
2012-10-16 4:43 ` HATAYAMA Daisuke
2012-10-16 16:57 ` Borislav Petkov
2012-10-12 16:09 ` [PATCH v9 09/12] x86, hotplug: During CPU0 online, enable x2apic, set_numa_node Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 10/12] x86, hotplug: The first online processor saves the MTRR state Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 11/12] x86/i387.c: Initialize thread xstate only on CPU0 only once Fenghua Yu
2012-10-12 16:09 ` [PATCH v9 12/12] x86, topology: Debug CPU00 hotplug Fenghua Yu
2012-10-16 8:47 ` Srivatsa S. Bhat
2012-10-17 0:06 ` Yu, Fenghua
2012-10-18 6:42 ` Srivatsa S. Bhat
2012-10-19 1:07 ` Yu, Fenghua
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