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gerrit-public.fairphone.software / kernel / msm-4.9 / 1f9be64a6de34f8d4a2dce845af15063523a02e3 / . / arch / powerpc / kvm / e500_emulate.c
blob: 8b99e076dc8183f0f82109c7304799a0f8d8ac81 [file] [log] [blame]
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]1/*
Scott Wood5ce941e2011-04-27 17:24:21 -0500[diff] [blame]2 * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]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>
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]17#include <asm/dbell.h>
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]18
19#include "booke.h"
Scott Wood29a5a6f2011-12-20 15:34:29 +0000[diff] [blame]20#include "e500.h"
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]21
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]22#define XOP_MSGSND 206
23#define XOP_MSGCLR 238
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]24#define XOP_TLBIVAX 786
25#define XOP_TLBSX 914
26#define XOP_TLBRE 946
27#define XOP_TLBWE 978
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame]28#define XOP_TLBILX 18
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]29
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]30#ifdef CONFIG_KVM_E500MC
31static int dbell2prio(ulong param)
32{
33 int msg = param & PPC_DBELL_TYPE_MASK;
34 int prio = -1;
35
36 switch (msg) {
37 case PPC_DBELL_TYPE(PPC_DBELL):
38 prio = BOOKE_IRQPRIO_DBELL;
39 break;
40 case PPC_DBELL_TYPE(PPC_DBELL_CRIT):
41 prio = BOOKE_IRQPRIO_DBELL_CRIT;
42 break;
43 default:
44 break;
45 }
46
47 return prio;
48}
49
50static int kvmppc_e500_emul_msgclr(struct kvm_vcpu *vcpu, int rb)
51{
52 ulong param = vcpu->arch.gpr[rb];
53 int prio = dbell2prio(param);
54
55 if (prio < 0)
56 return EMULATE_FAIL;
57
58 clear_bit(prio, &vcpu->arch.pending_exceptions);
59 return EMULATE_DONE;
60}
61
62static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
63{
64 ulong param = vcpu->arch.gpr[rb];
65 int prio = dbell2prio(rb);
66 int pir = param & PPC_DBELL_PIR_MASK;
67 int i;
68 struct kvm_vcpu *cvcpu;
69
70 if (prio < 0)
71 return EMULATE_FAIL;
72
73 kvm_for_each_vcpu(i, cvcpu, vcpu->kvm) {
74 int cpir = cvcpu->arch.shared->pir;
75 if ((param & PPC_DBELL_MSG_BRDCAST) || (cpir == pir)) {
76 set_bit(prio, &cvcpu->arch.pending_exceptions);
77 kvm_vcpu_kick(cvcpu);
78 }
79 }
80
81 return EMULATE_DONE;
82}
83#endif
84
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]85int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
86 unsigned int inst, int *advance)
87{
88 int emulated = EMULATE_DONE;
Alexander Grafc46dc9a2012-05-04 14:01:33 +0200[diff] [blame]89 int ra = get_ra(inst);
90 int rb = get_rb(inst);
91 int rt = get_rt(inst);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]92
93 switch (get_op(inst)) {
94 case 31:
95 switch (get_xop(inst)) {
96
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]97#ifdef CONFIG_KVM_E500MC
98 case XOP_MSGSND:
Alexander Grafc46dc9a2012-05-04 14:01:33 +0200[diff] [blame]99 emulated = kvmppc_e500_emul_msgsnd(vcpu, rb);
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]100 break;
101
102 case XOP_MSGCLR:
Alexander Grafc46dc9a2012-05-04 14:01:33 +0200[diff] [blame]103 emulated = kvmppc_e500_emul_msgclr(vcpu, rb);
Alexander Graf4ab96912012-02-15 13:28:48 +0000[diff] [blame]104 break;
105#endif
106
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]107 case XOP_TLBRE:
108 emulated = kvmppc_e500_emul_tlbre(vcpu);
109 break;
110
111 case XOP_TLBWE:
112 emulated = kvmppc_e500_emul_tlbwe(vcpu);
113 break;
114
115 case XOP_TLBSX:
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]116 emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
117 break;
118
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame]119 case XOP_TLBILX:
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame]120 emulated = kvmppc_e500_emul_tlbilx(vcpu, rt, ra, rb);
121 break;
122
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]123 case XOP_TLBIVAX:
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]124 emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
125 break;
126
127 default:
128 emulated = EMULATE_FAIL;
129 }
130
131 break;
132
133 default:
134 emulated = EMULATE_FAIL;
135 }
136
137 if (emulated == EMULATE_FAIL)
138 emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
139
140 return emulated;
141}
142
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]143int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]144{
145 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
146 int emulated = EMULATE_DONE;
147
148 switch (sprn) {
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]149#ifndef CONFIG_KVM_BOOKE_HV
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]150 case SPRN_PID:
Scott Wood5ce941e2011-04-27 17:24:21 -0500[diff] [blame]151 kvmppc_set_pid(vcpu, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]152 break;
153 case SPRN_PID1:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]154 if (spr_val != 0)
155 return EMULATE_FAIL;
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]156 vcpu_e500->pid[1] = spr_val;
157 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]158 case SPRN_PID2:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]159 if (spr_val != 0)
160 return EMULATE_FAIL;
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]161 vcpu_e500->pid[2] = spr_val;
162 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]163 case SPRN_MAS0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]164 vcpu->arch.shared->mas0 = spr_val;
165 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]166 case SPRN_MAS1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]167 vcpu->arch.shared->mas1 = spr_val;
168 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]169 case SPRN_MAS2:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]170 vcpu->arch.shared->mas2 = spr_val;
171 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]172 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]173 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
174 vcpu->arch.shared->mas7_3 |= spr_val;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]175 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]176 case SPRN_MAS4:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]177 vcpu->arch.shared->mas4 = spr_val;
178 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]179 case SPRN_MAS6:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]180 vcpu->arch.shared->mas6 = spr_val;
181 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]182 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]183 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
184 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]185 break;
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]186#endif
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]187 case SPRN_L1CSR0:
188 vcpu_e500->l1csr0 = spr_val;
189 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
190 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]191 case SPRN_L1CSR1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]192 vcpu_e500->l1csr1 = spr_val;
193 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]194 case SPRN_HID0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]195 vcpu_e500->hid0 = spr_val;
196 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]197 case SPRN_HID1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]198 vcpu_e500->hid1 = spr_val;
199 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]200
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]201 case SPRN_MMUCSR0:
202 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]203 spr_val);
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]204 break;
205
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]206 /* extra exceptions */
207 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]208 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]209 break;
210 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]211 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]212 break;
213 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]214 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]215 break;
216 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]217 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]218 break;
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]219#ifdef CONFIG_KVM_BOOKE_HV
220 case SPRN_IVOR36:
221 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = spr_val;
222 break;
223 case SPRN_IVOR37:
224 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = spr_val;
225 break;
226#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]227 default:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]228 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]229 }
230
231 return emulated;
232}
233
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]234int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]235{
236 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
237 int emulated = EMULATE_DONE;
238
239 switch (sprn) {
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]240#ifndef CONFIG_KVM_BOOKE_HV
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]241 case SPRN_PID:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]242 *spr_val = vcpu_e500->pid[0];
243 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]244 case SPRN_PID1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]245 *spr_val = vcpu_e500->pid[1];
246 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]247 case SPRN_PID2:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]248 *spr_val = vcpu_e500->pid[2];
249 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]250 case SPRN_MAS0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]251 *spr_val = vcpu->arch.shared->mas0;
252 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]253 case SPRN_MAS1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]254 *spr_val = vcpu->arch.shared->mas1;
255 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]256 case SPRN_MAS2:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]257 *spr_val = vcpu->arch.shared->mas2;
258 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]259 case SPRN_MAS3:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]260 *spr_val = (u32)vcpu->arch.shared->mas7_3;
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]261 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]262 case SPRN_MAS4:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]263 *spr_val = vcpu->arch.shared->mas4;
264 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]265 case SPRN_MAS6:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]266 *spr_val = vcpu->arch.shared->mas6;
267 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]268 case SPRN_MAS7:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]269 *spr_val = vcpu->arch.shared->mas7_3 >> 32;
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]270 break;
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]271#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]272 case SPRN_TLB0CFG:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]273 *spr_val = vcpu->arch.tlbcfg[0];
274 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]275 case SPRN_TLB1CFG:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]276 *spr_val = vcpu->arch.tlbcfg[1];
277 break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]278 case SPRN_L1CSR0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]279 *spr_val = vcpu_e500->l1csr0;
280 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]281 case SPRN_L1CSR1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]282 *spr_val = vcpu_e500->l1csr1;
283 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]284 case SPRN_HID0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]285 *spr_val = vcpu_e500->hid0;
286 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]287 case SPRN_HID1:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]288 *spr_val = vcpu_e500->hid1;
289 break;
Scott Wood90d34b02011-03-29 16:49:10 -0500[diff] [blame]290 case SPRN_SVR:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]291 *spr_val = vcpu_e500->svr;
292 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]293
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]294 case SPRN_MMUCSR0:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]295 *spr_val = 0;
296 break;
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]297
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]298 case SPRN_MMUCFG:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]299 *spr_val = vcpu->arch.mmucfg;
300 break;
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]301
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]302 /* extra exceptions */
303 case SPRN_IVOR32:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]304 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]305 break;
306 case SPRN_IVOR33:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]307 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA];
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]308 break;
309 case SPRN_IVOR34:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]310 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND];
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]311 break;
312 case SPRN_IVOR35:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]313 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]314 break;
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]315#ifdef CONFIG_KVM_BOOKE_HV
316 case SPRN_IVOR36:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]317 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]318 break;
319 case SPRN_IVOR37:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]320 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
Scott Wood73196cd2011-12-20 15:34:47 +0000[diff] [blame]321 break;
322#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]323 default:
Alexander Graf54771e62012-05-04 14:55:12 +0200[diff] [blame]324 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]325 }
326
327 return emulated;
328}
329