Don't put kernel at 3G; there's no need.

xlq · Mar 29, 2012 · 064fc8c · 064fc8c
1 parent c2ec2a1
commit 064fc8c
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Showing 2 changed files with 2 additions and 4 deletions.
diff --git a/kernel.ld b/kernel.ld
@@ -8,7 +8,7 @@ _phys_base = 0x00100000 ;
 /* Virtual base address of kernel.
    This is the address the kernel will run at,
    after paging is enabled in start.S. */
-_virt_base = 0xC0100000 ;
+_virt_base = 0x00100000 ;
 
 PHDRS {
     physical PT_LOAD FLAGS(7) ;

diff --git a/start.S b/start.S
@@ -53,8 +53,7 @@ _start:
     pushl %edx /* magic */
 
     /* Create initial page tables.
-       0x00000000 .. 0x003FFFFF is mapped to 0x00000000
-       0xC0000000 .. 0xC03FFFFF is mapped to 0x00000000 */
+       0x00000000 .. 0x003FFFFF is mapped to 0x00000000 */
     movl $boot_page_table,%edi
     movl $0x00000003,%eax
     movl $1024,%ecx
@@ -67,7 +66,6 @@ _start:
     movl $boot_page_table,%eax
     orl $0x00000003,%eax
     movl %eax,(boot_page_directory + 0x000)
-    movl %eax,(boot_page_directory + 0xC00)
 
     /* Load page directory. */
     movl $boot_page_directory,%eax