diff --git a/sys/arm64/include/vmm.h b/sys/arm64/include/vmm.h
--- a/sys/arm64/include/vmm.h
+++ b/sys/arm64/include/vmm.h
@@ -89,6 +89,7 @@
 	VM_REG_GUEST_TTBR1_EL1,
 	VM_REG_GUEST_TCR_EL1,
 	VM_REG_GUEST_TCR2_EL1,
+	VM_REG_GUEST_MPIDR_EL1,
 	VM_REG_LAST
 };
 
diff --git a/sys/arm64/vmm/vmm_arm64.c b/sys/arm64/vmm/vmm_arm64.c
--- a/sys/arm64/vmm/vmm_arm64.c
+++ b/sys/arm64/vmm/vmm_arm64.c
@@ -1251,6 +1251,8 @@
 		return (&hypctx->tcr_el1);
 	case VM_REG_GUEST_TCR2_EL1:
 		return (&hypctx->tcr2_el1);
+	case VM_REG_GUEST_MPIDR_EL1:
+		return (&hypctx->vmpidr_el2);
 	default:
 		break;
 	}