target/ppc: Split page size information into a separate allocation

env->sps contains page size encoding information as an embedded structure.
Since this information is specific to 64-bit hash MMUs, split it out into
a separately allocated structure, to reduce the basic env size for other
cpus.  Along the way we make a few other cleanups:

    * Rename to PPCHash64Options which is more in line with qemu name
      conventions, and reflects that we're going to merge some more hash64
      mmu specific details in there in future.  Also rename its
      substructures to match qemu conventions.

    * Move structure definitions to the mmu-hash64.[ch] files.

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

1 files changed, 4 insertions, 22 deletions

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index c621a6b..1c5c33c 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -327,11 +327,13 @@ union ppc_tlb_t {
 #define TLB_MAS                3
 #endif
 
+typedef struct PPCHash64SegmentPageSizes PPCHash64SegmentPageSizes;
+
 typedef struct ppc_slb_t ppc_slb_t;
 struct ppc_slb_t {
     uint64_t esid;
     uint64_t vsid;
-    const struct ppc_one_seg_page_size *sps;
+    const PPCHash64SegmentPageSizes *sps;
 };
 
 #define MAX_SLB_ENTRIES         64
@@ -948,28 +950,8 @@ enum {
 
 #define DBELL_PROCIDTAG_MASK           PPC_BITMASK(44, 63)
 
-/*****************************************************************************/
-/* Segment page size information, used by recent hash MMUs
- * The format of this structure mirrors kvm_ppc_smmu_info
- */
-
 #define PPC_PAGE_SIZES_MAX_SZ   8
 
-struct ppc_one_page_size {
-    uint32_t page_shift;  /* Page shift (or 0) */
-    uint32_t pte_enc;     /* Encoding in the HPTE (>>12) */
-};
-
-struct ppc_one_seg_page_size {
-    uint32_t page_shift;  /* Base page shift of segment (or 0) */
-    uint32_t slb_enc;     /* SLB encoding for BookS */
-    struct ppc_one_page_size enc[PPC_PAGE_SIZES_MAX_SZ];
-};
-
-struct ppc_segment_page_sizes {
-    struct ppc_one_seg_page_size sps[PPC_PAGE_SIZES_MAX_SZ];
-};
-
 struct ppc_radix_page_info {
     uint32_t count;
     uint32_t entries[PPC_PAGE_SIZES_MAX_SZ];
@@ -1106,7 +1088,6 @@ struct CPUPPCState {
     uint64_t insns_flags;
     uint64_t insns_flags2;
 #if defined(TARGET_PPC64)
-    struct ppc_segment_page_sizes sps;
     ppc_slb_t vrma_slb;
     target_ulong rmls;
     bool ci_large_pages;
@@ -1227,6 +1208,7 @@ struct PowerPCCPU {
     PPCVirtualHypervisor *vhyp;
     Object *intc;
     int32_t node_id; /* NUMA node this CPU belongs to */
+    PPCHash64Options *hash64_opts;
 
     /* Fields related to migration compatibility hacks */
     bool pre_2_8_migration;