diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/intel/hyperthreading/intel_sibling.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/src/cpu/intel/hyperthreading/intel_sibling.c b/src/cpu/intel/hyperthreading/intel_sibling.c index 823d77c3a3..e988664dda 100644 --- a/src/cpu/intel/hyperthreading/intel_sibling.c +++ b/src/cpu/intel/hyperthreading/intel_sibling.c @@ -5,6 +5,11 @@ #include <device/device.h> #include <pc80/mc146818rtc.h> #include <smp/spinlock.h> +#include <assert.h> + +#if CONFIG_SERIAL_CPU_INIT==0 +#error Intel hyper-threading requires serialized cpu init +#endif static int first_time = 1; static int disable_siblings = !CONFIG_LOGICAL_CPUS; @@ -30,11 +35,9 @@ void intel_sibling_init(device_t cpu) siblings = 1; } -#if 1 printk(BIOS_DEBUG, "CPU: %u %d siblings\n", cpu->path.apic.apic_id, siblings); -#endif /* See if I am a sibling cpu */ if (cpu->path.apic.apic_id & (siblings -1)) { @@ -53,25 +56,18 @@ void intel_sibling_init(device_t cpu) cpu_path.apic.apic_id = cpu->path.apic.apic_id + i; - /* Allocate the new cpu device structure */ - new = alloc_dev(cpu->bus, &cpu_path); + /* Allocate new cpu device structure iff sibling CPU + * was not in static device tree. + */ + new = alloc_find_dev(cpu->bus, &cpu_path); if (!new) { continue; } -#if 1 printk(BIOS_DEBUG, "CPU: %u has sibling %u\n", cpu->path.apic.apic_id, new->path.apic.apic_id); -#endif - /* Start the new cpu */ - if (!start_cpu(new)) { - /* Record the error in cpu? */ - printk(BIOS_ERR, "CPU %u would not start!\n", - new->path.apic.apic_id); - } } - } |