From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Wed, 22 Oct 2008 22:11:19 +0000 (-0500)
Subject: changed VMCB to enter long paged real mode(?) if it exists.
X-Git-Tag: 1.0^2~5
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=0c1919011d9ce503de86b4f9f334cbddda1be182

changed VMCB to enter long paged real mode(?) if it exists.
---

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index bd5deca..86629d3 100644
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -59,7 +59,7 @@ static vmcb_t * Allocate_VMCB() {
 
 
 
-
+#include <palacios/vmm_ctrl_regs.h>
 
 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
@@ -77,7 +77,21 @@ static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
   ctrl_area->cr_reads.cr0 = 1;
   ctrl_area->cr_writes.cr0 = 1;
 
+
+  /* Set up the efer to enable 64 bit page tables */
+  {
+    struct efer_64 * efer = (struct efer_64 *)&(guest_state->efer);
+    struct cr4_32 * cr4 = (struct cr4_32 *)&(guest_state->cr4);
+    efer->lma = 1;
+    efer->lme = 1;
+
+    cr4->pae = 1;
+  }
+
   guest_state->efer |= EFER_MSR_svm_enable;
+
+
+
   guest_state->rflags = 0x00000002; // The reserved bit is always 1
   ctrl_area->svm_instrs.VMRUN = 1;
   ctrl_area->svm_instrs.VMMCALL = 1;