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
ppc64_use_proc_tbl(PowerPCCPU * cpu)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 */
ppc64_v3_radix(PowerPCCPU * cpu)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