returned to old implementation

1 files changed, 8 insertions, 2 deletions

diff --git a/kern/cpu_number.c b/kern/cpu_number.c
index 60cf9b70..cddbfd18 100644
--- a/kern/cpu_number.c
+++ b/kern/cpu_number.c
@@ -10,7 +10,13 @@ cpu_number()
 {
 	if(ncpu == 1 | lapic == 0) return 0;
 	else{ 
-		int apic_id = lapic->apic_id.r >>24;
-		return apic2kernel[apic_id];
+		unsigned apic_id = lapic->apic_id.r >>24;
+		int i = 0;
+		
+		while(i< ncpu && machine_slot[i].apic_id != apic_id) i++;
+		
+		if(i == ncpu) return -1;
+		else return i;
+
 	}
 }