From af661ad11bbcd00b1eb437ab5032817e7ecf35fc Mon Sep 17 00:00:00 2001
From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Tue, 17 Apr 2007 23:08:56 +0000
Subject: [PATCH] Ptable calculation broken for 32bit code under x86_64, by
 Bernhard Kauer.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2697 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-i386/helper2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target-i386/helper2.c b/target-i386/helper2.c
index f05a284f96..cbf17caa11 100644
--- a/target-i386/helper2.c
+++ b/target-i386/helper2.c
@@ -670,7 +670,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
 #endif
         {
             /* XXX: load them when cr3 is loaded ? */
-            pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 30) << 3)) & 
+            pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & 
                 env->a20_mask;
             pdpe = ldq_phys(pdpe_addr);
             if (!(pdpe & PG_PRESENT_MASK)) {
@@ -765,7 +765,7 @@ int cpu_x86_handle_mmu_fault(CPUX86State *env, target_ulong addr,
         uint32_t pde;
 
         /* page directory entry */
-        pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & ~3)) & 
+        pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & 
             env->a20_mask;
         pde = ldl_phys(pde_addr);
         if (!(pde & PG_PRESENT_MASK)) {
@@ -910,7 +910,7 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
         } else 
 #endif
         {
-            pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 30) << 3)) & 
+            pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & 
                 env->a20_mask;
             pdpe = ldl_phys(pdpe_addr);
             if (!(pdpe & PG_PRESENT_MASK))
@@ -940,7 +940,7 @@ target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
             page_size = 4096;
         } else {
             /* page directory entry */
-            pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & ~3)) & env->a20_mask;
+            pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & env->a20_mask;
             pde = ldl_phys(pde_addr);
             if (!(pde & PG_PRESENT_MASK)) 
                 return -1;