stos/amd64: cpu: Add LAPIC driver + MCB in KPCR

Signed-off-by: Chloe M <chloe@mensia.org>

service/ptos/arch/amd64/cpu/init.c

@@ -11,6 +11,7 @@
 #include <machine/idt.h>
 #include <machine/trap.h>
 #include <machine/msr.h>
+#include <machine/lapic.h>
 
 /*
  * Initialize interrupts for the current processor
@@ -65,5 +66,9 @@ HalKpcrP1Init(KPCR *Kpcr)
 VOID
 HalKpcrP2Init(KPCR *Kpcr)
 {
+    /* Initialize per-processor pools */
     ExPoolRegionInit(&Kpcr->PoolRegion);
+
+    /* Initialize the Local APIC unit */
+    MdLapicInit(Kpcr);
 }