Handle MIPS64 SEGBITS value correctly.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3011 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index c169beb..e4f2676 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -374,7 +374,7 @@
     tlb = &env->mmu.r4k.tlb[idx];
     tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
 #ifdef TARGET_MIPS64
-    tlb->VPN &= 0xC00000FFFFFFFFFFULL;
+    tlb->VPN &= env->SEGMask;
 #endif
     tlb->ASID = env->CP0_EntryHi & 0xFF;
     tlb->PageMask = env->CP0_PageMask;