[kernel][ports] Add basic ports functionality

top/main.c

Index: top/main.c
diff --git a/top/main.c b/top/main.c
index 0065a94507ca75bca0473dc2f7f5daf03bef343c..6ef8431500f6e5bc0b3be16e17c68c5ec89a20fe 100644
--- a/top/main.c
+++ b/top/main.c
@@ -36,6 +36,7 @@
 #include <kernel/mutex.h>
 #include <kernel/novm.h>
 #include <kernel/thread.h>
+#include <kernel/port.h>
 #include <lk/init.h>
 #include <lk/main.h>
 
@@ -116,6 +117,9 @@ void lk_main(ulong arg0, ulong arg1, ulong arg2, ulong arg3)
     lk_primary_cpu_init_level(LK_INIT_LEVEL_HEAP, LK_INIT_LEVEL_KERNEL - 1);
     kernel_init();
 
+    // initialize the named ports.
+    port_init();

[travisg, 2015/11/19 21:26:10]

Should probably just move this inside kernel_init()

[cpu_(ooo_6.6-7.5), 2015/11/20 22:18:46]

Done.

+
     lk_primary_cpu_init_level(LK_INIT_LEVEL_KERNEL, LK_INIT_LEVEL_THREADING - 1);
 
     // create a thread to complete system initialization