X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/b59190783bd677264eab33017f6438d9de147e17..722e5aea4f6704ee7a3e7779c5326c157a98195b:/aseg-paging/pagetable.c

diff --git a/aseg-paging/pagetable.c b/aseg-paging/pagetable.c
deleted file mode 100644
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;
-}