aboutsummaryrefslogtreecommitdiff
path: root/init/main.c
diff options
context:
space:
mode:
Diffstat (limited to 'init/main.c')
-rw-r--r--init/main.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/init/main.c b/init/main.c
index d3bcb3b1162..9def935ab13 100644
--- a/init/main.c
+++ b/init/main.c
@@ -146,9 +146,14 @@ static unsigned int __initdata max_cpus = NR_CPUS;
* greater than 0, limits the maximum number of CPUs activated in
* SMP mode to <NUM>.
*/
+#ifndef CONFIG_X86_IO_APIC
+static inline void disable_ioapic_setup(void) {};
+#endif
+
static int __init nosmp(char *str)
{
max_cpus = 0;
+ disable_ioapic_setup();
return 0;
}
@@ -157,10 +162,13 @@ early_param("nosmp", nosmp);
static int __init maxcpus(char *str)
{
get_option(&str, &max_cpus);
- return 1;
+ if (max_cpus == 0)
+ disable_ioapic_setup();
+
+ return 0;
}
-__setup("maxcpus=", maxcpus);
+early_param("maxcpus", maxcpus);
#else
#define max_cpus NR_CPUS
#endif
@@ -389,10 +397,6 @@ static void __init smp_init(void)
{
unsigned int cpu;
-#ifndef CONFIG_HOTPLUG_CPU
- cpu_possible_map = cpu_present_map;
-#endif
-
/* FIXME: This should be done in userspace --RR */
for_each_present_cpu(cpu) {
if (num_online_cpus() >= max_cpus)
@@ -537,10 +541,6 @@ asmlinkage void __init start_kernel(void)
setup_arch(&command_line);
setup_command_line(command_line);
unwind_setup();
-#ifndef CONFIG_HOTPLUG_CPU
- if (max_cpus < 2)
- cpu_possible_map = cpu_online_map;
-#endif
setup_per_cpu_areas();
smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */