target-ppc: Disentangle hash mmu paths for cpu_ppc_handle_mmu_fault

cpu_ppc_handle_mmu_fault() calls get_physical_address() (whose behaviour
depends on MMU type) then, if that fails, issues an appropriate exception
- which again has a number of dependencies on MMU type.

This patch starts converting cpu_ppc_handle_mmu_fault() to have a
single switch on MMU type, calling MMU specific fault handler
functions which deal with both translation and exception delivery
appropriately for the MMU type.  We convert 32-bit and 64-bit hash
MMUs to this new model, but the existing code is left in place for
other MMU types for now.

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

1 files changed, 2 insertions, 0 deletions

diff --git a/target-ppc/mmu-hash64.h b/target-ppc/mmu-hash64.h
index d8eb8ded8a..3a53e61673 100644
--- a/target-ppc/mmu-hash64.h
+++ b/target-ppc/mmu-hash64.h
@@ -8,6 +8,8 @@ void dump_slb(FILE *f, fprintf_function cpu_fprintf, CPUPPCState *env);
 int ppc_store_slb (CPUPPCState *env, target_ulong rb, target_ulong rs);
 int ppc_hash64_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
                                     target_ulong eaddr, int rw, int access_type);
+int ppc_hash64_handle_mmu_fault(CPUPPCState *env, target_ulong address, int rw,
+                                int mmu_idx);
 #endif
 
 #endif /* CONFIG_USER_ONLY */