diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index cf9c69b..d4be7bb 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -65,7 +65,7 @@
 	lbz	r0,PACAPROCSTART(r13)
 	cmpwi	r0,0x80
 	bne	1f
-	li	r0,0
+	li	r0,1
 	stb	r0,PACAPROCSTART(r13)
 	b	kvm_start_guest
 1:
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index e877366..17210c5 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -75,7 +75,7 @@
 	/* On OPAL v2 the CPU are still spinning inside OPAL itself,
 	 * get them back now
 	 */
-	if (firmware_has_feature(FW_FEATURE_OPALv2)) {
+	if (!paca[nr].cpu_start && firmware_has_feature(FW_FEATURE_OPALv2)) {
 		pr_devel("OPAL: Starting CPU %d (HW 0x%x)...\n", nr, pcpu);
 		rc = opal_start_cpu(pcpu, start_here);
 		if (rc != OPAL_SUCCESS)