target/ppc: Move page size setup to helper function

Initialization of the env->sps structure at the end of instance_init is
specific to the 64-bit hash MMU, so move the code into a helper function
in mmu-hash64.c.

We also create a corresponding function to be called at finalize time -
it's empty for now, but we'll need it shortly.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c
index a87fa7c83f..4cb7d1cf07 100644
--- a/target/ppc/mmu-hash64.c
+++ b/target/ppc/mmu-hash64.c
@@ -1095,3 +1095,32 @@ void helper_store_lpcr(CPUPPCState *env, target_ulong val)
     ppc_hash64_update_rmls(cpu);
     ppc_hash64_update_vrma(cpu);
 }
+
+void ppc_hash64_init(PowerPCCPU *cpu)
+{
+    CPUPPCState *env = &cpu->env;
+    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+
+    if (pcc->sps) {
+        env->sps = *pcc->sps;
+    } else if (env->mmu_model & POWERPC_MMU_64) {
+        /* Use default sets of page sizes. We don't support MPSS */
+        static const struct ppc_segment_page_sizes defsps = {
+            .sps = {
+                { .page_shift = 12, /* 4K */
+                  .slb_enc = 0,
+                  .enc = { { .page_shift = 12, .pte_enc = 0 } }
+                },
+                { .page_shift = 24, /* 16M */
+                  .slb_enc = 0x100,
+                  .enc = { { .page_shift = 24, .pte_enc = 0 } }
+                },
+            },
+        };
+        env->sps = defsps;
+    }
+}
+
+void ppc_hash64_finalize(PowerPCCPU *cpu)
+{
+}