blob: cf220d518756be00b1f9f89c1cb5a1d134cb8af1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
/* 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
|