CONFIG_FILE_LOCKING should not depend on CONFIG_BLOCK
[sfrench/cifs-2.6.git] / arch / powerpc / kvm / e500_emulate.c
1 /*
2  * Copyright (C) 2008 Freescale Semiconductor, Inc. All rights reserved.
3  *
4  * Author: Yu Liu, <yu.liu@freescale.com>
5  *
6  * Description:
7  * This file is derived from arch/powerpc/kvm/44x_emulate.c,
8  * by Hollis Blanchard <hollisb@us.ibm.com>.
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License, version 2, as
12  * published by the Free Software Foundation.
13  */
14
15 #include <asm/kvm_ppc.h>
16 #include <asm/disassemble.h>
17 #include <asm/kvm_e500.h>
18
19 #include "booke.h"
20 #include "e500_tlb.h"
21
22 #define XOP_TLBIVAX 786
23 #define XOP_TLBSX   914
24 #define XOP_TLBRE   946
25 #define XOP_TLBWE   978
26
27 int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
28                            unsigned int inst, int *advance)
29 {
30         int emulated = EMULATE_DONE;
31         int ra;
32         int rb;
33
34         switch (get_op(inst)) {
35         case 31:
36                 switch (get_xop(inst)) {
37
38                 case XOP_TLBRE:
39                         emulated = kvmppc_e500_emul_tlbre(vcpu);
40                         break;
41
42                 case XOP_TLBWE:
43                         emulated = kvmppc_e500_emul_tlbwe(vcpu);
44                         break;
45
46                 case XOP_TLBSX:
47                         rb = get_rb(inst);
48                         emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
49                         break;
50
51                 case XOP_TLBIVAX:
52                         ra = get_ra(inst);
53                         rb = get_rb(inst);
54                         emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
55                         break;
56
57                 default:
58                         emulated = EMULATE_FAIL;
59                 }
60
61                 break;
62
63         default:
64                 emulated = EMULATE_FAIL;
65         }
66
67         if (emulated == EMULATE_FAIL)
68                 emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
69
70         return emulated;
71 }
72
73 int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
74 {
75         struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
76         int emulated = EMULATE_DONE;
77
78         switch (sprn) {
79         case SPRN_PID:
80                 vcpu_e500->pid[0] = vcpu->arch.shadow_pid =
81                         vcpu->arch.pid = vcpu->arch.gpr[rs];
82                 break;
83         case SPRN_PID1:
84                 vcpu_e500->pid[1] = vcpu->arch.gpr[rs]; break;
85         case SPRN_PID2:
86                 vcpu_e500->pid[2] = vcpu->arch.gpr[rs]; break;
87         case SPRN_MAS0:
88                 vcpu_e500->mas0 = vcpu->arch.gpr[rs]; break;
89         case SPRN_MAS1:
90                 vcpu_e500->mas1 = vcpu->arch.gpr[rs]; break;
91         case SPRN_MAS2:
92                 vcpu_e500->mas2 = vcpu->arch.gpr[rs]; break;
93         case SPRN_MAS3:
94                 vcpu_e500->mas3 = vcpu->arch.gpr[rs]; break;
95         case SPRN_MAS4:
96                 vcpu_e500->mas4 = vcpu->arch.gpr[rs]; break;
97         case SPRN_MAS6:
98                 vcpu_e500->mas6 = vcpu->arch.gpr[rs]; break;
99         case SPRN_MAS7:
100                 vcpu_e500->mas7 = vcpu->arch.gpr[rs]; break;
101         case SPRN_L1CSR1:
102                 vcpu_e500->l1csr1 = vcpu->arch.gpr[rs]; break;
103         case SPRN_HID0:
104                 vcpu_e500->hid0 = vcpu->arch.gpr[rs]; break;
105         case SPRN_HID1:
106                 vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
107
108         case SPRN_MMUCSR0:
109                 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
110                                 vcpu->arch.gpr[rs]);
111                 break;
112
113         /* extra exceptions */
114         case SPRN_IVOR32:
115                 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = vcpu->arch.gpr[rs];
116                 break;
117         case SPRN_IVOR33:
118                 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = vcpu->arch.gpr[rs];
119                 break;
120         case SPRN_IVOR34:
121                 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = vcpu->arch.gpr[rs];
122                 break;
123         case SPRN_IVOR35:
124                 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = vcpu->arch.gpr[rs];
125                 break;
126
127         default:
128                 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
129         }
130
131         return emulated;
132 }
133
134 int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
135 {
136         struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
137         int emulated = EMULATE_DONE;
138
139         switch (sprn) {
140         case SPRN_PID:
141                 vcpu->arch.gpr[rt] = vcpu_e500->pid[0]; break;
142         case SPRN_PID1:
143                 vcpu->arch.gpr[rt] = vcpu_e500->pid[1]; break;
144         case SPRN_PID2:
145                 vcpu->arch.gpr[rt] = vcpu_e500->pid[2]; break;
146         case SPRN_MAS0:
147                 vcpu->arch.gpr[rt] = vcpu_e500->mas0; break;
148         case SPRN_MAS1:
149                 vcpu->arch.gpr[rt] = vcpu_e500->mas1; break;
150         case SPRN_MAS2:
151                 vcpu->arch.gpr[rt] = vcpu_e500->mas2; break;
152         case SPRN_MAS3:
153                 vcpu->arch.gpr[rt] = vcpu_e500->mas3; break;
154         case SPRN_MAS4:
155                 vcpu->arch.gpr[rt] = vcpu_e500->mas4; break;
156         case SPRN_MAS6:
157                 vcpu->arch.gpr[rt] = vcpu_e500->mas6; break;
158         case SPRN_MAS7:
159                 vcpu->arch.gpr[rt] = vcpu_e500->mas7; break;
160
161         case SPRN_TLB0CFG:
162                 vcpu->arch.gpr[rt] = mfspr(SPRN_TLB0CFG);
163                 vcpu->arch.gpr[rt] &= ~0xfffUL;
164                 vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[0];
165                 break;
166
167         case SPRN_TLB1CFG:
168                 vcpu->arch.gpr[rt] = mfspr(SPRN_TLB1CFG);
169                 vcpu->arch.gpr[rt] &= ~0xfffUL;
170                 vcpu->arch.gpr[rt] |= vcpu_e500->guest_tlb_size[1];
171                 break;
172
173         case SPRN_L1CSR1:
174                 vcpu->arch.gpr[rt] = vcpu_e500->l1csr1; break;
175         case SPRN_HID0:
176                 vcpu->arch.gpr[rt] = vcpu_e500->hid0; break;
177         case SPRN_HID1:
178                 vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
179
180         case SPRN_MMUCSR0:
181                 vcpu->arch.gpr[rt] = 0; break;
182
183         /* extra exceptions */
184         case SPRN_IVOR32:
185                 vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
186                 break;
187         case SPRN_IVOR33:
188                 vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
189                 break;
190         case SPRN_IVOR34:
191                 vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
192                 break;
193         case SPRN_IVOR35:
194                 vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
195                 break;
196         default:
197                 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
198         }
199
200         return emulated;
201 }
202