push/pop all registers when handling interrupt from kernel

1 files changed, 1 insertions, 0 deletions

diff --git a/main.c b/main.c
index d4a30f0..db9a6b9 100644
--- a/main.c
+++ b/main.c
@@ -17,6 +17,7 @@ main()
   kvminit();       // kernel page table
   procinit();      // process table
   trapinit();      // trap vectors
+  plicinit();      // set up interrupt controller
   binit();         // buffer cache
   fileinit();      // file table
   ramdiskinit();   // disk