1 files changed, 10 insertions, 0 deletions
diff --git a/src/cpu/x86/lapic/boot_cpu.c b/src/cpu/x86/lapic/boot_cpu.c
new file mode 100644
index 0000000000..d3a8f6e7a7
--- /dev/null
+++ b/src/cpu/x86/lapic/boot_cpu.c
@@ -0,0 +1,10 @@
+#include <cpu/x86/msr.h>
+
+int boot_cpu(void)
+{
+	int bsp;
+	msr_t msr;
+	msr = rdmsr(0x1b);
+	bsp = !!(msr.lo & (1 << 8));
+	return bsp;
+}