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 2.1 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 PPC_MMU_BOOK3S_V3_H 21 #define PPC_MMU_BOOK3S_V3_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 PATE0_HR 0x8000000000000000 33 34 /* 35 * WARNING: This field doesn't actually exist in the final version of 36 * the architecture and is unused by hardware. However, qemu uses it 37 * as an indication of a radix guest in the pseudo-PATB entry that it 38 * maintains for SPAPR guests and in the migration stream, so we need 39 * to keep it around 40 */ 41 #define PATE1_GR 0x8000000000000000 42 43 /* Process Table Entry */ 44 struct prtb_entry { 45 uint64_t prtbe0, prtbe1; 46 }; 47 48 #ifdef TARGET_PPC64 49 50 /* 51 * tlbie[l] helper flags 52 * 53 * RIC, PRS, R and local are passed as flags in the last argument. 54 */ 55 #define TLBIE_F_RIC_SHIFT 0 56 #define TLBIE_F_PRS_SHIFT 2 57 #define TLBIE_F_R_SHIFT 3 58 #define TLBIE_F_LOCAL_SHIFT 4 59 60 #define TLBIE_F_RIC_MASK (3 << TLBIE_F_RIC_SHIFT) 61 #define TLBIE_F_PRS (1 << TLBIE_F_PRS_SHIFT) 62 #define TLBIE_F_R (1 << TLBIE_F_R_SHIFT) 63 #define TLBIE_F_LOCAL (1 << TLBIE_F_LOCAL_SHIFT) 64 65 static inline bool ppc64_use_proc_tbl(PowerPCCPU *cpu) 66 { 67 return !!(cpu->env.spr[SPR_LPCR] & LPCR_UPRT); 68 } 69 70 bool ppc64_v3_get_pate(PowerPCCPU *cpu, target_ulong lpid, 71 ppc_v3_pate_t *entry); 72 73 /* 74 * The LPCR:HR bit is a shortcut that avoids having to 75 * dig out the partition table in the fast path. This is 76 * also how the HW uses it. 77 */ 78 static inline bool ppc64_v3_radix(PowerPCCPU *cpu) 79 { 80 return !!(cpu->env.spr[SPR_LPCR] & LPCR_HR); 81 } 82 83 #endif /* TARGET_PPC64 */ 84 85 #endif /* CONFIG_USER_ONLY */ 86 87 #endif /* PPC_MMU_BOOK3S_V3_H */ 88