target/ppc/mmu-book3s-v3.h

   1 /*
   2  *  PowerPC ISAV3 BookS emulation generic mmu definitions for qemu.
   3  *
   4  *  Copyright (c) 2017 Suraj Jitindar Singh, IBM Corporation
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef MMU_H
  21 #define MMU_H
  22
  23 #ifndef CONFIG_USER_ONLY
  24
  25 /*
  26  * Partition table definitions
  27  */
  28 #define PTCR_PATB               0x0FFFFFFFFFFFF000ULL /* Partition Table Base */
  29 #define PTCR_PATS               0x000000000000001FULL /* Partition Table Size */
  30
  31 /* Partition Table Entry Fields */
  32 #define PATBE1_GR 0x8000000000000000
  33
  34 /* Process Table Entry */
  35 struct prtb_entry {
  36     uint64_t prtbe0, prtbe1;
  37 };
  38
  39 #ifdef TARGET_PPC64
  40
  41 static inline bool ppc64_use_proc_tbl(PowerPCCPU *cpu)
  42 {
  43     return !!(cpu->env.spr[SPR_LPCR] & LPCR_UPRT);
  44 }
  45
  46 static inline bool ppc64_radix_guest(PowerPCCPU *cpu)
  47 {
  48     PPCVirtualHypervisorClass *vhc =
  49         PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp);
  50
  51     return !!(vhc->get_patbe(cpu->vhyp) & PATBE1_GR);
  52 }
  53
  54 int ppc64_v3_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, int rwx,
  55                               int mmu_idx);
  56
  57 #endif /* TARGET_PPC64 */
  58
  59 #endif /* CONFIG_USER_ONLY */
  60
  61 #endif /* MMU_H */