From: Ben Pfaff <blp@cs.stanford.edu>
Date: Tue, 31 Aug 2004 02:55:48 +0000 (+0000)
Subject: Update comments, put LOADER_PHYS_BASE back at 3 GB.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b0fe71a5ccef1c166bc3aefd6ea2cef5f4b2fe46;p=pintos-anon

Update comments, put LOADER_PHYS_BASE back at 3 GB.
---

diff --git a/src/threads/loader.h b/src/threads/loader.h
index 2aebb0f..8bd603f 100644
--- a/src/threads/loader.h
+++ b/src/threads/loader.h
@@ -8,11 +8,14 @@
 /* Physical address of kernel base. */
 #define LOADER_KERN_BASE 0x100000       /* 1 MB. */
 
-/* The loader maps 4 MB of the start of physical memory to this
-   virtual base address.  Later, the kernel adds the rest of
-   physical memory to the mapping.
+/* Kernel virtual address at which all physical memory is mapped.
+
+   The loader maps the 4 MB at the bottom of physical memory to
+   this virtual base address.  Later, paging_init() adds the rest
+   of physical memory to the mapping.
+
    This must be aligned on a 4 MB boundary. */
-#define LOADER_PHYS_BASE 0xb0000000     /* 3 GB. */
+#define LOADER_PHYS_BASE 0xc0000000     /* 3 GB. */
 
 /* Offsets within the loader. */
 #define LOADER_BIOS_SIG (LOADER_SIZE - 2)        /* aa55 BIOS signature. */