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gerrit-public.fairphone.software / kernel / msm-5.4 / c46dc9a86148bc37c31d67a22a3887144ba7aa81 / . / arch / powerpc / kvm / e500_emulate.c
blob: 9b2dcda71950d32f048addcd2de04f625d38e4c4 [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
143int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
144{
145 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
146 int emulated = EMULATE_DONE;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]147 ulong spr_val = kvmppc_get_gpr(vcpu, rs);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]148
149 switch (sprn) {
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]150#ifndef CONFIG_KVM_BOOKE_HV
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]151 case SPRN_PID:
Scott Wood5ce941e2011-04-27 17:24:21 -0500[diff] [blame]152 kvmppc_set_pid(vcpu, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]153 break;
154 case SPRN_PID1:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]155 if (spr_val != 0)
156 return EMULATE_FAIL;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]157 vcpu_e500->pid[1] = spr_val; 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 Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]161 vcpu_e500->pid[2] = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]162 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]163 vcpu->arch.shared->mas0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]164 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]165 vcpu->arch.shared->mas1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]166 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]167 vcpu->arch.shared->mas2 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]168 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]169 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
170 vcpu->arch.shared->mas7_3 |= spr_val;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]171 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]172 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]173 vcpu->arch.shared->mas4 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]174 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]175 vcpu->arch.shared->mas6 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]176 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]177 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
178 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]179 break;
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]180#endif
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]181 case SPRN_L1CSR0:
182 vcpu_e500->l1csr0 = spr_val;
183 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
184 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]185 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]186 vcpu_e500->l1csr1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]187 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]188 vcpu_e500->hid0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]189 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]190 vcpu_e500->hid1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]191
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]192 case SPRN_MMUCSR0:
193 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]194 spr_val);
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]195 break;
196
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]197 /* extra exceptions */
198 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]199 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]200 break;
201 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]202 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]203 break;
204 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]205 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]206 break;
207 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]208 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]209 break;
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]210#ifdef CONFIG_KVM_BOOKE_HV
211 case SPRN_IVOR36:
212 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] = spr_val;
213 break;
214 case SPRN_IVOR37:
215 vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] = spr_val;
216 break;
217#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]218 default:
219 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
220 }
221
222 return emulated;
223}
224
225int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
226{
227 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
228 int emulated = EMULATE_DONE;
229
230 switch (sprn) {
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]231#ifndef CONFIG_KVM_BOOKE_HV
232 unsigned long val;
233
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]234 case SPRN_PID:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]235 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[0]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]236 case SPRN_PID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]237 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[1]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]238 case SPRN_PID2:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]239 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[2]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]240 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]241 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]242 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]243 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]244 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]245 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas2); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]246 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]247 val = (u32)vcpu->arch.shared->mas7_3;
248 kvmppc_set_gpr(vcpu, rt, val);
249 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]250 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]251 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas4); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]252 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]253 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas6); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]254 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]255 val = vcpu->arch.shared->mas7_3 >> 32;
256 kvmppc_set_gpr(vcpu, rt, val);
257 break;
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]258#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]259 case SPRN_TLB0CFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]260 kvmppc_set_gpr(vcpu, rt, vcpu->arch.tlbcfg[0]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]261 case SPRN_TLB1CFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]262 kvmppc_set_gpr(vcpu, rt, vcpu->arch.tlbcfg[1]); break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]263 case SPRN_L1CSR0:
264 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]265 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]266 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]267 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]268 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]269 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]270 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
Scott Wood90d34b02011-03-29 16:49:10 -0500[diff] [blame]271 case SPRN_SVR:
272 kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]273
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]274 case SPRN_MMUCSR0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]275 kvmppc_set_gpr(vcpu, rt, 0); break;
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]276
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]277 case SPRN_MMUCFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]278 kvmppc_set_gpr(vcpu, rt, vcpu->arch.mmucfg); break;
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]279
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]280 /* extra exceptions */
281 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]282 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]283 break;
284 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]285 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]286 break;
287 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]288 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]289 break;
290 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]291 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]292 break;
Scott Wood73196cd32011-12-20 15:34:47 +0000[diff] [blame]293#ifdef CONFIG_KVM_BOOKE_HV
294 case SPRN_IVOR36:
295 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL]);
296 break;
297 case SPRN_IVOR37:
298 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT]);
299 break;
300#endif
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]301 default:
302 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
303 }
304
305 return emulated;
306}
307