avoid using physical accesses in user emulation

[mirror_qemu.git] / target-ppc / helper.c

diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index c9693c8b167ed21636f92e36f4344aa2df6eb840..66c26041c4d1c8ba8e80fc3dd0fed7e321bcbad9 100644 (file)
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -36,6 +36,32 @@
 /*****************************************************************************/
 /* PowerPC MMU emulation */
 
+#if defined(CONFIG_USER_ONLY) 
+int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
+                              int is_user, int is_softmmu)
+{
+    int exception, error_code;
+    
+    if (rw == 2) {
+        exception = EXCP_ISI;
+        error_code = 0;
+    } else {
+        exception = EXCP_DSI;
+        error_code = 0;
+        if (rw)
+            error_code |= 0x02000000;
+        env->spr[SPR_DAR] = address;
+        env->spr[SPR_DSISR] = error_code;
+    }
+    env->exception_index = exception;
+    env->error_code = error_code;
+    return 1;
+}
+target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
+{
+    return addr;
+}
+#else
 /* Perform BAT hit & translation */
 static int get_bat (CPUState *env, uint32_t *real, int *prot,
                     uint32_t virtual, int rw, int type)
@@ -355,8 +381,8 @@ static int get_segment (CPUState *env, uint32_t *real, int *prot,
     return ret;
 }
 
-int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
-                          uint32_t address, int rw, int access_type)
+static int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
+                                 uint32_t address, int rw, int access_type)
 {
     int ret;
 #if 0
@@ -387,12 +413,6 @@ int get_physical_address (CPUState *env, uint32_t *physical, int *prot,
     return ret;
 }
 
-#if defined(CONFIG_USER_ONLY) 
-target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
-{
-    return addr;
-}
-#else
 target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
 {
     uint32_t phys_addr;
@@ -402,7 +422,6 @@ target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
         return -1;
     return phys_addr;
 }
-#endif
 
 /* Perform address translation */
 int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
@@ -523,6 +542,7 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     }
     return ret;
 }
+#endif
 
 /*****************************************************************************/
 /* BATs management */