6345 remove xhat support

*** 657,672 ****
   * has a 4M pagesize, and memory is low, the allocation of 4M pages may fail
   * then 8K pages will be allocated instead and the first TSB which stores 8K
   * mappings will potentially be undersized. To compensate for the potential
   * underaccounting in this case we always add 1/4 of the region size to the 8K
   * ttecnt.
-  *
-  * Note that sfmmu_xhat_provider MUST be the first element.
   */
  
  struct hat {
-         void            *sfmmu_xhat_provider;   /* NULL for CPU hat */
          cpuset_t        sfmmu_cpusran;  /* cpu bit mask for efficient xcalls */
          struct  as      *sfmmu_as;      /* as this hat provides mapping for */
          /* per pgsz private ttecnt + shme rgns ttecnt for rgns not in SCD */
          ulong_t         sfmmu_ttecnt[MMU_PAGE_SIZES];
          /* shme rgns ttecnt for rgns in SCD */
--- 657,669 ----
*** 1239,1258 ****
   *
   * The hmeblk now also has per tte lock cnts.  This is required because
   * the counts can be high and there are not enough bits in the tte. When
   * physio is fixed to not lock the translations we should be able to move
   * the lock cnt back to the tte.  See bug id 1198554.
-  *
-  * Note that xhat_hme_blk's layout follows this structure: hme_blk_misc
-  * and sf_hment are at the same offsets in both structures. Whenever
-  * hme_blk is changed, xhat_hme_blk may need to be updated as well.
   */
  
  struct hme_blk_misc {
!         uint_t  notused:25;
          uint_t  shared_bit:1;   /* set for SRD shared hmeblk */
-         uint_t  xhat_bit:1;     /* set for an xhat hme_blk */
          uint_t  shadow_bit:1;   /* set for a shadow hme_blk */
          uint_t  nucleus_bit:1;  /* set for a nucleus hme_blk */
          uint_t  ttesize:3;      /* contains ttesz of hmeblk */
  };
  
--- 1236,1250 ----
   *
   * The hmeblk now also has per tte lock cnts.  This is required because
   * the counts can be high and there are not enough bits in the tte. When
   * physio is fixed to not lock the translations we should be able to move
   * the lock cnt back to the tte.  See bug id 1198554.
   */
  
  struct hme_blk_misc {
!         uint_t  notused:26;
          uint_t  shared_bit:1;   /* set for SRD shared hmeblk */
          uint_t  shadow_bit:1;   /* set for a shadow hme_blk */
          uint_t  nucleus_bit:1;  /* set for a nucleus hme_blk */
          uint_t  ttesize:3;      /* contains ttesz of hmeblk */
  };
  
*** 1288,1298 ****
  
          struct sf_hment hblk_hme[1];    /* hment array */
  };
  
  #define hblk_shared     hblk_misc.shared_bit
- #define hblk_xhat_bit   hblk_misc.xhat_bit
  #define hblk_shw_bit    hblk_misc.shadow_bit
  #define hblk_nuc_bit    hblk_misc.nucleus_bit
  #define hblk_ttesz      hblk_misc.ttesize
  #define hblk_hmecnt     hblk_un.hblk_counts.hblk_hmecount
  #define hblk_vcnt       hblk_un.hblk_counts.hblk_validcnt
--- 1280,1289 ----
*** 2313,2325 ****
  extern int      sfmmu_get_ppvcolor(struct page *);
  extern int      sfmmu_get_addrvcolor(caddr_t);
  extern int      sfmmu_hat_lock_held(sfmmu_t *);
  extern int      sfmmu_alloc_ctx(sfmmu_t *, int, struct cpu *, int);
  
- /*
-  * Functions exported to xhat_sfmmu.c
-  */
  extern kmutex_t *sfmmu_mlist_enter(page_t *);
  extern void     sfmmu_mlist_exit(kmutex_t *);
  extern int      sfmmu_mlist_held(struct page *);
  extern struct hme_blk *sfmmu_hmetohblk(struct sf_hment *);
  
--- 2304,2313 ----