From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Fri, 21 Jul 2006 22:39:57 +0000 (+0000)
Subject: Fix Arm cp15 c13 (Process ID) register writes.
X-Git-Tag: TizenStudio_2.0_p2.3~14152
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d07edbfa0022c86567f3460378008a654e532820;p=sdk%2Femulator%2Fqemu.git

Fix Arm cp15 c13 (Process ID) register writes.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2067 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 60eee5c..2ed46a2 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -494,10 +494,18 @@ void helper_set_cp15(CPUState *env, uint32_t insn, uint32_t val)
     case 13: /* Process ID.  */
         switch (op2) {
         case 0:
-            env->cp15.c9_data = val;
+            /* Unlike real hardware the qemu TLB uses virtual addresses,
+               not modified virtual addresses, so this causes a TLB flush.
+             */
+            if (env->cp15.c13_fcse != val)
+              tlb_flush(env, 1);
+            env->cp15.c13_fcse = val;
             break;
         case 1:
-            env->cp15.c9_insn = val;
+            /* This changes the ASID, so do a TLB flush.  */
+            if (env->cp15.c13_context != val)
+              tlb_flush(env, 0);
+            env->cp15.c13_context = val;
             break;
         default:
             goto bad_reg;