[hpoussin] 44805: [freeldr] Never unmap hyperspace or HAL entries. Fixes boot problems with more than 1GB of RAM

Author: hpoussin
Date: Tue Dec 29 21:43:01 2009
New Revision: 44805

URL: http://svn.reactos.org/svn/reactos?rev=44805&view=rev
Log:
[freeldr] Never unmap hyperspace or HAL entries. Fixes boot problems with more than 1GB of RAM

Modified:
    trunk/reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c

Modified: trunk/reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/window...
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/windows/i386/wlmemory.c [iso-8859-1] Tue Dec 29 21:43:01 2009
@@ -207,6 +207,10 @@
 {
     PHARDWARE_PTE KernelPT;
     ULONG Entry = (Page >> 10) + (KSEG0_BASE >> 22);
+
+    /* Don't unmap hyperspace or HAL entries */
+    if (Entry == HYPER_SPACE_ENTRY || Entry == 1023)
+        return;

if (PDE[Entry].Valid)
     {