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gerrit-public.fairphone.software / kernel / msm-5.4 / b59049720dd95021dfe0d9f4e1fa9458a67cfe29 / . / arch / powerpc / kvm / e500_emulate.c
blob: 6d0b2bd54fb0a9ffef74f3bfb21b04fa34aa4ce7 [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>
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
27int 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;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]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
73int 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;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]77 ulong spr_val = kvmppc_get_gpr(vcpu, rs);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]78
79 switch (sprn) {
80 case SPRN_PID:
Scott Wood5ce941e2011-04-27 17:24:21 -0500[diff] [blame]81 kvmppc_set_pid(vcpu, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]82 break;
83 case SPRN_PID1:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]84 if (spr_val != 0)
85 return EMULATE_FAIL;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]86 vcpu_e500->pid[1] = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]87 case SPRN_PID2:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]88 if (spr_val != 0)
89 return EMULATE_FAIL;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]90 vcpu_e500->pid[2] = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]91 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]92 vcpu->arch.shared->mas0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]93 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]94 vcpu->arch.shared->mas1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]95 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]96 vcpu->arch.shared->mas2 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]97 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]98 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
99 vcpu->arch.shared->mas7_3 |= spr_val;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]100 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]101 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]102 vcpu->arch.shared->mas4 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]103 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]104 vcpu->arch.shared->mas6 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]105 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]106 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
107 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]108 break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]109 case SPRN_L1CSR0:
110 vcpu_e500->l1csr0 = spr_val;
111 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
112 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]113 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]114 vcpu_e500->l1csr1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]115 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]116 vcpu_e500->hid0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]117 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]118 vcpu_e500->hid1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]119
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]120 case SPRN_MMUCSR0:
121 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]122 spr_val);
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]123 break;
124
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]125 /* extra exceptions */
126 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]127 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]128 break;
129 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]130 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]131 break;
132 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]133 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]134 break;
135 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]136 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]137 break;
138
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]139 default:
140 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
141 }
142
143 return emulated;
144}
145
146int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
147{
148 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
149 int emulated = EMULATE_DONE;
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]150 unsigned long val;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]151
152 switch (sprn) {
153 case SPRN_PID:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]154 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[0]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]155 case SPRN_PID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]156 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[1]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]157 case SPRN_PID2:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]158 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[2]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]159 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]160 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]161 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]162 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]163 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]164 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas2); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]165 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]166 val = (u32)vcpu->arch.shared->mas7_3;
167 kvmppc_set_gpr(vcpu, rt, val);
168 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]169 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]170 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas4); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]171 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]172 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas6); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]173 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame^]174 val = vcpu->arch.shared->mas7_3 >> 32;
175 kvmppc_set_gpr(vcpu, rt, val);
176 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]177 case SPRN_TLB0CFG:
Liu Yuda15bf42010-01-22 19:36:53 +0800[diff] [blame]178 kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb0cfg); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]179 case SPRN_TLB1CFG:
Liu Yuda15bf42010-01-22 19:36:53 +0800[diff] [blame]180 kvmppc_set_gpr(vcpu, rt, vcpu_e500->tlb1cfg); break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]181 case SPRN_L1CSR0:
182 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]183 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]184 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]185 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]186 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]187 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]188 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
Scott Wood90d34b02011-03-29 16:49:10 -0500[diff] [blame]189 case SPRN_SVR:
190 kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); 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:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]193 kvmppc_set_gpr(vcpu, rt, 0); break;
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]194
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]195 case SPRN_MMUCFG:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]196 kvmppc_set_gpr(vcpu, rt, mfspr(SPRN_MMUCFG)); break;
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]197
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]198 /* extra exceptions */
199 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]200 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]201 break;
202 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]203 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]204 break;
205 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]206 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]207 break;
208 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]209 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]210 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]211 default:
212 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
213 }
214
215 return emulated;
216}
217