| /* SPDX-License-Identifier: GPL-2.0-only */ | |
| #include <smp/node.h> | |
| #include <cpu/x86/msr.h> | |
| #include <cpu/x86/lapic_def.h> | |
| #if CONFIG(SMP) | |
| int boot_cpu(void) | |
| { | |
| int bsp; | |
| msr_t msr; | |
| msr = rdmsr(LAPIC_BASE_MSR); | |
| bsp = !!(msr.lo & (1 << 8)); | |
| return bsp; | |
| } | |
| #endif |