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Merge remote-tracking branches 'asoc/fix/davinci', 'asoc/fix/mc13783', 'asoc/fix...
[linux-2.6-block.git] / arch / powerpc / kvm / e500_emulate.c
CommitLineData
bc8080cb 1/*
5ce941ee 2 * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
bc8080cb
HB		 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>
4ab96919 17#include <asm/dbell.h>
bc8080cb
HB		 18
19#include "booke.h"
29a5a6f9 20#include "e500.h"
bc8080cb 21
8f20a3ab 22#define XOP_DCBTLS 166
4ab96919
AG		 23#define XOP_MSGSND 206
24#define XOP_MSGCLR 238
bc8080cb
HB		 25#define XOP_TLBIVAX 786
26#define XOP_TLBSX 914
27#define XOP_TLBRE 946
28#define XOP_TLBWE 978
ab9fc405 29#define XOP_TLBILX 18
b12c7841 30#define XOP_EHPRIV 270
bc8080cb 31
4ab96919
AG		 32#ifdef CONFIG_KVM_E500MC
33static int dbell2prio(ulong param)
34{
35 int msg = param & PPC_DBELL_TYPE_MASK;
36 int prio = -1;
37
38 switch (msg) {
39 case PPC_DBELL_TYPE(PPC_DBELL):
40 prio = BOOKE_IRQPRIO_DBELL;
41 break;
42 case PPC_DBELL_TYPE(PPC_DBELL_CRIT):
43 prio = BOOKE_IRQPRIO_DBELL_CRIT;
44 break;
45 default:
46 break;
47 }
48
49 return prio;
50}
51
52static int kvmppc_e500_emul_msgclr(struct kvm_vcpu *vcpu, int rb)
53{
54 ulong param = vcpu->arch.gpr[rb];
55 int prio = dbell2prio(param);
56
57 if (prio < 0)
58 return EMULATE_FAIL;
59
60 clear_bit(prio, &vcpu->arch.pending_exceptions);
61 return EMULATE_DONE;
62}
63
64static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
65{
66 ulong param = vcpu->arch.gpr[rb];
67 int prio = dbell2prio(rb);
68 int pir = param & PPC_DBELL_PIR_MASK;
69 int i;
70 struct kvm_vcpu *cvcpu;
71
72 if (prio < 0)
73 return EMULATE_FAIL;
74
75 kvm_for_each_vcpu(i, cvcpu, vcpu->kvm) {
76 int cpir = cvcpu->arch.shared->pir;
77 if ((param & PPC_DBELL_MSG_BRDCAST) || (cpir == pir)) {
78 set_bit(prio, &cvcpu->arch.pending_exceptions);
79 kvm_vcpu_kick(cvcpu);
80 }
81 }
82
83 return EMULATE_DONE;
84}
85#endif
86
b12c7841
BB		 87static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu,
88 unsigned int inst, int *advance)
89{
90 int emulated = EMULATE_DONE;
91
92 switch (get_oc(inst)) {
93 case EHPRIV_OC_DEBUG:
94 run->exit_reason = KVM_EXIT_DEBUG;
95 run->debug.arch.address = vcpu->arch.pc;
96 run->debug.arch.status = 0;
97 kvmppc_account_exit(vcpu, DEBUG_EXITS);
98 emulated = EMULATE_EXIT_USER;
99 *advance = 0;
100 break;
101 default:
102 emulated = EMULATE_FAIL;
103 }
104 return emulated;
105}
106
8f20a3ab
AG		 107static int kvmppc_e500_emul_dcbtls(struct kvm_vcpu *vcpu)
108{
109 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
110
111 /* Always fail to lock the cache */
112 vcpu_e500->l1csr0 |= L1CSR0_CUL;
113 return EMULATE_DONE;
114}
115
3a167bea
AK		 116int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu,
117 unsigned int inst, int *advance)
bc8080cb
HB		 118{
119 int emulated = EMULATE_DONE;
c46dc9a8
AG		 120 int ra = get_ra(inst);
121 int rb = get_rb(inst);
122 int rt = get_rt(inst);
7cdd7a95 123 gva_t ea;
bc8080cb
HB		 124
125 switch (get_op(inst)) {
126 case 31:
127 switch (get_xop(inst)) {
128
8f20a3ab
AG		 129 case XOP_DCBTLS:
130 emulated = kvmppc_e500_emul_dcbtls(vcpu);
131 break;
132
4ab96919
AG		 133#ifdef CONFIG_KVM_E500MC
134 case XOP_MSGSND:
c46dc9a8 135 emulated = kvmppc_e500_emul_msgsnd(vcpu, rb);
4ab96919
AG		 136 break;
137
138 case XOP_MSGCLR:
c46dc9a8 139 emulated = kvmppc_e500_emul_msgclr(vcpu, rb);
4ab96919
AG		 140 break;
141#endif
142
bc8080cb
HB		 143 case XOP_TLBRE:
144 emulated = kvmppc_e500_emul_tlbre(vcpu);
145 break;
146
147 case XOP_TLBWE:
148 emulated = kvmppc_e500_emul_tlbwe(vcpu);
149 break;
150
151 case XOP_TLBSX:
7cdd7a95
MC		 152 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
153 emulated = kvmppc_e500_emul_tlbsx(vcpu, ea);
bc8080cb
HB		 154 break;
155
7cdd7a95
MC		 156 case XOP_TLBILX: {
157 int type = rt & 0x3;
158 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
159 emulated = kvmppc_e500_emul_tlbilx(vcpu, type, ea);
ab9fc405 160 break;
7cdd7a95 161 }
ab9fc405 162
bc8080cb 163 case XOP_TLBIVAX:
7cdd7a95
MC		 164 ea = kvmppc_get_ea_indexed(vcpu, ra, rb);
165 emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
bc8080cb
HB		 166 break;
167
b12c7841
BB		 168 case XOP_EHPRIV:
169 emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst,
170 advance);
171 break;
172
bc8080cb
HB		 173 default:
174 emulated = EMULATE_FAIL;
175 }
176
177 break;
178
179 default:
180 emulated = EMULATE_FAIL;
181 }
182
183 if (emulated == EMULATE_FAIL)
184 emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
185
186 return emulated;
187}
188
3a167bea 189int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
bc8080cb
HB		 190{
191 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
192 int emulated = EMULATE_DONE;
193
194 switch (sprn) {
73196cd3 195#ifndef CONFIG_KVM_BOOKE_HV
bc8080cb 196 case SPRN_PID:
5ce941ee 197 kvmppc_set_pid(vcpu, spr_val);
bc8080cb
HB		 198 break;
199 case SPRN_PID1:
dd9ebf1f
LY		 200 if (spr_val != 0)
201 return EMULATE_FAIL;
54771e62
AG		 202 vcpu_e500->pid[1] = spr_val;
203 break;
bc8080cb 204 case SPRN_PID2:
dd9ebf1f
LY		 205 if (spr_val != 0)
206 return EMULATE_FAIL;
54771e62
AG		 207 vcpu_e500->pid[2] = spr_val;
208 break;
bc8080cb 209 case SPRN_MAS0:
54771e62
AG		 210 vcpu->arch.shared->mas0 = spr_val;
211 break;
bc8080cb 212 case SPRN_MAS1:
54771e62
AG		 213 vcpu->arch.shared->mas1 = spr_val;
214 break;
bc8080cb 215 case SPRN_MAS2:
54771e62
AG		 216 vcpu->arch.shared->mas2 = spr_val;
217 break;
bc8080cb 218 case SPRN_MAS3:
b5904972
SW		 219 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
220 vcpu->arch.shared->mas7_3 |= spr_val;
dc83b8bc 221 break;
bc8080cb 222 case SPRN_MAS4:
54771e62
AG		 223 vcpu->arch.shared->mas4 = spr_val;
224 break;
bc8080cb 225 case SPRN_MAS6:
54771e62
AG		 226 vcpu->arch.shared->mas6 = spr_val;
227 break;
bc8080cb 228 case SPRN_MAS7:
b5904972
SW		 229 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
230 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
dc83b8bc 231 break;
73196cd3 232#endif
d86be077
LY		 233 case SPRN_L1CSR0:
234 vcpu_e500->l1csr0 = spr_val;
235 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
236 break;
bc8080cb 237 case SPRN_L1CSR1:
54771e62 238 vcpu_e500->l1csr1 = spr_val;
07fec1c2 239 vcpu_e500->l1csr1 &= ~(L1CSR1_ICFI | L1CSR1_ICLFR);
54771e62 240 break;
bc8080cb 241 case SPRN_HID0:
54771e62
AG		 242 vcpu_e500->hid0 = spr_val;
243 break;
bc8080cb 244 case SPRN_HID1:
54771e62
AG		 245 vcpu_e500->hid1 = spr_val;
246 break;
bc8080cb 247
b0a1835d
LY		 248 case SPRN_MMUCSR0:
249 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
8e5b26b5 250 spr_val);
b0a1835d
LY		 251 break;
252
debf27d6
MC		 253 case SPRN_PWRMGTCR0:
254 /*
255 * Guest relies on host power management configurations
256 * Treat the request as a general store
257 */
258 vcpu->arch.pwrmgtcr0 = spr_val;
259 break;
260
bb3a8a17 261 /* extra exceptions */
95d80a29 262#ifdef CONFIG_SPE_POSSIBLE
bb3a8a17 263 case SPRN_IVOR32:
8e5b26b5 264 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
bb3a8a17
HB		 265 break;
266 case SPRN_IVOR33:
8e5b26b5 267 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
bb3a8a17
HB		 268 break;
269 case SPRN_IVOR34:
8e5b26b5 270 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
bb3a8a17 271 break;
95d80a29
MC		 272#endif
273#ifdef CONFIG_ALTIVEC
274 case SPRN_IVOR32:
275 vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_UNAVAIL] = spr_val;
276 break;
277 case SPRN_IVOR33:
278 vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_ASSIST] = spr_val;
279 break;
280#endif
bb3a8a17 281 case SPRN_IVOR35:
8e5b26b5 282 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
bb3a8a17 283 break;
73196cd3
SW		 284#ifdef CONFIG_KVM_BOOKE_HV
285 case SPRN_IVOR36:
286 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = spr_val;
287 break;
288 case SPRN_IVOR37:
289 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = spr_val;
290 break;
291#endif
bc8080cb 292 default:
54771e62 293 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val);
bc8080cb
HB		 294 }
295
296 return emulated;
297}
298
3a167bea 299int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
bc8080cb
HB		 300{
301 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
302 int emulated = EMULATE_DONE;
303
304 switch (sprn) {
73196cd3 305#ifndef CONFIG_KVM_BOOKE_HV
bc8080cb 306 case SPRN_PID:
54771e62
AG		 307 *spr_val = vcpu_e500->pid[0];
308 break;
bc8080cb 309 case SPRN_PID1:
54771e62
AG		 310 *spr_val = vcpu_e500->pid[1];
311 break;
bc8080cb 312 case SPRN_PID2:
54771e62
AG		 313 *spr_val = vcpu_e500->pid[2];
314 break;
bc8080cb 315 case SPRN_MAS0:
54771e62
AG		 316 *spr_val = vcpu->arch.shared->mas0;
317 break;
bc8080cb 318 case SPRN_MAS1:
54771e62
AG		 319 *spr_val = vcpu->arch.shared->mas1;
320 break;
bc8080cb 321 case SPRN_MAS2:
54771e62
AG		 322 *spr_val = vcpu->arch.shared->mas2;
323 break;
bc8080cb 324 case SPRN_MAS3:
54771e62 325 *spr_val = (u32)vcpu->arch.shared->mas7_3;
b5904972 326 break;
bc8080cb 327 case SPRN_MAS4:
54771e62
AG		 328 *spr_val = vcpu->arch.shared->mas4;
329 break;
bc8080cb 330 case SPRN_MAS6:
54771e62
AG		 331 *spr_val = vcpu->arch.shared->mas6;
332 break;
bc8080cb 333 case SPRN_MAS7:
54771e62 334 *spr_val = vcpu->arch.shared->mas7_3 >> 32;
b5904972 335 break;
73196cd3 336#endif
21bd000a
BB		 337 case SPRN_DECAR:
338 *spr_val = vcpu->arch.decar;
339 break;
bc8080cb 340 case SPRN_TLB0CFG:
54771e62
AG		 341 *spr_val = vcpu->arch.tlbcfg[0];
342 break;
bc8080cb 343 case SPRN_TLB1CFG:
54771e62
AG		 344 *spr_val = vcpu->arch.tlbcfg[1];
345 break;
307d9008
MC		 346 case SPRN_TLB0PS:
347 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
348 return EMULATE_FAIL;
349 *spr_val = vcpu->arch.tlbps[0];
350 break;
351 case SPRN_TLB1PS:
352 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
353 return EMULATE_FAIL;
354 *spr_val = vcpu->arch.tlbps[1];
355 break;
d86be077 356 case SPRN_L1CSR0:
54771e62
AG		 357 *spr_val = vcpu_e500->l1csr0;
358 break;
bc8080cb 359 case SPRN_L1CSR1:
54771e62
AG		 360 *spr_val = vcpu_e500->l1csr1;
361 break;
bc8080cb 362 case SPRN_HID0:
54771e62
AG		 363 *spr_val = vcpu_e500->hid0;
364 break;
bc8080cb 365 case SPRN_HID1:
54771e62
AG		 366 *spr_val = vcpu_e500->hid1;
367 break;
90d34b0e 368 case SPRN_SVR:
54771e62
AG		 369 *spr_val = vcpu_e500->svr;
370 break;
bc8080cb 371
b0a1835d 372 case SPRN_MMUCSR0:
54771e62
AG		 373 *spr_val = 0;
374 break;
b0a1835d 375
06579dd9 376 case SPRN_MMUCFG:
54771e62
AG		 377 *spr_val = vcpu->arch.mmucfg;
378 break;
9a6061d7
MC		 379 case SPRN_EPTCFG:
380 if (!has_feature(vcpu, VCPU_FTR_MMU_V2))
381 return EMULATE_FAIL;
382 /*
383 * Legacy Linux guests access EPTCFG register even if the E.PT
384 * category is disabled in the VM. Give them a chance to live.
385 */
386 *spr_val = vcpu->arch.eptcfg;
387 break;
06579dd9 388
debf27d6
MC		 389 case SPRN_PWRMGTCR0:
390 *spr_val = vcpu->arch.pwrmgtcr0;
391 break;
392
bb3a8a17 393 /* extra exceptions */
95d80a29 394#ifdef CONFIG_SPE_POSSIBLE
bb3a8a17 395 case SPRN_IVOR32:
54771e62 396 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
bb3a8a17
HB		 397 break;
398 case SPRN_IVOR33:
54771e62 399 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
bb3a8a17
HB		 400 break;
401 case SPRN_IVOR34:
54771e62 402 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
bb3a8a17 403 break;
95d80a29
MC		 404#endif
405#ifdef CONFIG_ALTIVEC
406 case SPRN_IVOR32:
407 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_UNAVAIL];
408 break;
409 case SPRN_IVOR33:
410 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ALTIVEC_ASSIST];
411 break;
412#endif
bb3a8a17 413 case SPRN_IVOR35:
54771e62 414 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
bb3a8a17 415 break;
73196cd3
SW		 416#ifdef CONFIG_KVM_BOOKE_HV
417 case SPRN_IVOR36:
54771e62 418 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
73196cd3
SW		 419 break;
420 case SPRN_IVOR37:
54771e62 421 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
73196cd3
SW		 422 break;
423#endif
bc8080cb 424 default:
54771e62 425 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val);
bc8080cb
HB		 426 }
427
428 return emulated;
429}
430
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