some more haxing

[netwatch.git] / aseg-paging / pagetable.c

diff --git a/aseg-paging/pagetable.c b/aseg-paging/pagetable.c
deleted file mode 100644 (file)
index 83a1e54..0000000
--- a/aseg-paging/pagetable.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include "vm_flags.h"
-#include <io.h>
-
-#define MAP_FLAGS      (PTE_PRESENT | PTE_READ_WRITE)
-
-void * pt_setup(int smbase) {
-       int i;
-       outb(0x80, 0x51);
-
-       /* The page directory and page table live at SMBASE and SMBASE + 0x1000,
-        * respectively; clear them. */
-       int * pagedirectory = (int *) smbase;
-       int * pagetable = (int *) (smbase + 0x1000);
-
-       /* Clear out the page directory except for one entry pointing to the
-        * page table, and clear the page table entirely. */
-       outb(0x80, 0x52);
-       pagedirectory[0] = (smbase + 0x1000) | PTE_PRESENT | PTE_READ_WRITE;
-       outb(0x80, 0x53);
-       for (i = 1; i < 1024; i++)
-       {
-               pagedirectory[i] = 0;
-       }
-
-       outb(0x80, 0x54);
-       for (i = 0; i < 1024; i++)
-       {
-               pagetable[i] = 0;
-       }
-       outb(0x80, 0x55);
-
-       /* The page at 0x10000 - 0x10FFF points to the SMI entry point,
-        * SMBASE + 0x8000. */
-       pagetable[16] = (0x8000 + smbase) | MAP_FLAGS;
-
-       /* 0x11000 to 0x1EFFF map to the rest of ASEG up to SMBASE + 0xF000;
-        * the page containing the saved state is not mappped to our code
-        * region.  */
-
-       for (i = 0; i < 8; i++)
-       {
-               pagetable[17 + i] = (i * 0x1000 + smbase) | MAP_FLAGS;
-       }
-
-       for (i = 0; i < 6; i++)
-       {
-               pagetable[25 + i] = (smbase + 0x9000 + i * 0x1000) | MAP_FLAGS;
-       }
-
-       outb(0x80, 0x56);
-       /* Map 0xA8000 to itself. */
-       pagetable[0xA8] = 0xA8000 | MAP_FLAGS;
-       pagetable[0xA9] = 0xA9000 | MAP_FLAGS;
-
-       /* No TSEG yet. */
-
-       outb(0x80, 0x57);
-       return pagedirectory;
-}