| Kyösti Mälkki | 5a5c886 | 2014-01-26 14:41:54 +0200 | [diff] [blame] | 1 | #include <smp/node.h> |
| Eric Biederman | fcd5ace | 2004-10-14 19:29:29 +0000 | [diff] [blame] | 2 | #include <cpu/x86/msr.h> |
| 3 | |||||
| Kyösti Mälkki | eafb18b | 2011-11-22 19:44:45 +0200 | [diff] [blame] | 4 | #if CONFIG_SMP |
| Stefan Reinauer | 00093a8 | 2011-11-02 16:12:34 -0700 | [diff] [blame] | 5 | int boot_cpu(void) |
| Eric Biederman | fcd5ace | 2004-10-14 19:29:29 +0000 | [diff] [blame] | 6 | { |
| 7 | int bsp; | ||||
| 8 | msr_t msr; | ||||
| 9 | msr = rdmsr(0x1b); | ||||
| 10 | bsp = !!(msr.lo & (1 << 8)); | ||||
| 11 | return bsp; | ||||
| 12 | } | ||||
| Kyösti Mälkki | eafb18b | 2011-11-22 19:44:45 +0200 | [diff] [blame] | 13 | #endif |