target-ppc: Split user only code out of mmu_helper.c

mmu_helper.c is, for obvious reasons, almost entirely concerned with
softmmu builds of qemu.  However, it does contain one stub function which
is used when CONFIG_USER_ONLY=y - the user only versoin of
cpu_ppc_handle_mmu_fault, which always triggers an exception.  The entire
rest of the file is surrounded by #if !defined(CONFIG_USER_ONLY).

We clean this up by moving the user only stub into its own new file,
removing the ifdefs and building mmu_helper.c only when CONFIG_SOFTMMU
is set.  This also lets us remove the #define of cpu_handle_mmu_fault to
cpu_ppc_handle_mmu_fault - that name is only used from generic code for
user only - so we just name our split user version by the generic name.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index eb793e0..1777438 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1092,8 +1092,11 @@ int cpu_ppc_signal_handler (int host_signum, void *pinfo,
                             void *puc);
 int cpu_ppc_handle_mmu_fault (CPUPPCState *env, target_ulong address, int rw,
                               int mmu_idx);
-#define cpu_handle_mmu_fault cpu_ppc_handle_mmu_fault
 void ppc_hw_interrupt (CPUPPCState *env);
+#if defined(CONFIG_USER_ONLY)
+int cpu_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,
+                         int mmu_idx);
+#endif
 
 #if !defined(CONFIG_USER_ONLY)
 void ppc_store_sdr1 (CPUPPCState *env, target_ulong value);