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authorNatalie Protasevich <Natalie.Protasevich@unisys.com>2005-10-30 14:59:32 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:12 -0800
commit9f40a72a7e819789f66910c8cd60aab005cdb413 (patch)
treed8006a8cea9b19f2871c5fdafa373d1dc5db46ec /arch/i386/kernel/smpboot.c
parentca140fdadbe4c031a20a970f46163908d09a116b (diff)
[PATCH] x86: hot plug CPU to support physical add of new processors
The patch allows physical bring-up of new processors (not initially present in the configuration) from facilities such as driver/utility implemented on a platform. The actual method of making processors available is up to the platform implementation. Signed-off-by: Natalie Protasevich <Natalie.Protasevich@unisys.com> Cc: Shaohua Li <shaohua.li@intel.com> Cc: Ashok Raj <ashok.raj@intel.com> Cc: Zwane Mwaikambo <zwane@holomorphy.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/smpboot.c')
-rw-r--r--arch/i386/kernel/smpboot.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c
index 1fb26d0e30b..01b618e73ec 100644
--- a/arch/i386/kernel/smpboot.c
+++ b/arch/i386/kernel/smpboot.c
@@ -87,7 +87,11 @@ EXPORT_SYMBOL(cpu_online_map);
cpumask_t cpu_callin_map;
cpumask_t cpu_callout_map;
EXPORT_SYMBOL(cpu_callout_map);
+#ifdef CONFIG_HOTPLUG_CPU
+cpumask_t cpu_possible_map = CPU_MASK_ALL;
+#else
cpumask_t cpu_possible_map;
+#endif
EXPORT_SYMBOL(cpu_possible_map);
static cpumask_t smp_commenced_mask;