From 9a4670a138f7ab25062195be2f4d42403dddc077 Mon Sep 17 00:00:00 2001
From: Austin Clements <amdragon@mit.edu>
Date: Thu, 2 Sep 2010 16:39:55 -0400
Subject: [PATCH] Comment inituvm and loaduvm

---
 vm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/vm.c b/vm.c
index 2a57faf..0104c3e 100644
--- a/vm.c
+++ b/vm.c
@@ -193,6 +193,8 @@ uva2ka(pde_t *pgdir, char *uva)
   return (char *)pa;
 }
 
+// Load the initcode into address 0 of pgdir.
+// sz must be less than a page.
 void
 inituvm(pde_t *pgdir, char *init, uint sz)
 {
@@ -204,6 +206,8 @@ inituvm(pde_t *pgdir, char *init, uint sz)
   memmove(mem, init, sz);
 }
 
+// Load a program segment into pgdir.  addr must be page-aligned
+// and the pages from addr to addr+sz must already be mapped.
 int
 loaduvm(pde_t *pgdir, char *addr, struct inode *ip, uint offset, uint sz)
 {