diff options
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/kernel/topology.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c index 07d6da36a82..844c08fdb22 100644 --- a/arch/i386/kernel/topology.c +++ b/arch/i386/kernel/topology.c @@ -40,14 +40,18 @@ int arch_register_cpu(int num) * restrictions and assumptions in kernel. This basically * doesnt add a control file, one cannot attempt to offline * BSP. + * + * Also certain PCI quirks require not to enable hotplug control + * for all CPU's. */ - if (!num) + if (!num || !enable_cpu_hotplug) cpu_devices[num].cpu.no_control = 1; return register_cpu(&cpu_devices[num].cpu, num); } #ifdef CONFIG_HOTPLUG_CPU +int enable_cpu_hotplug = 1; void arch_unregister_cpu(int num) { return unregister_cpu(&cpu_devices[num].cpu); |