From 4d25031a81d3cd32edc00de6596db76cc4010685 Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Tue, 13 Nov 2012 11:32:40 -0800 Subject: [PATCH] x86, topology: Don't offline CPU0 if any PIC irq can not be migrated out of it 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 Link: http://lkml.kernel.org/r/1352835171-3958-4-git-send-email-fenghua.yu@intel.com Signed-off-by: H. Peter Anvin --- Reading git-format-patch failed