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gerrit-public.fairphone.software / kernel / msm-5.4 / ab9fc4056af338248640ddb18497be386360363d / . / arch / powerpc / kvm / e500_emulate.c
blob: af02c18fc798367b81e5dfb8d106cd37d1a860f6 [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>
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]17
18#include "booke.h"
Scott Wood29a5a6f2011-12-20 15:34:29 +0000[diff] [blame]19#include "e500.h"
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]20
21#define XOP_TLBIVAX 786
22#define XOP_TLBSX 914
23#define XOP_TLBRE 946
24#define XOP_TLBWE 978
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame^]25#define XOP_TLBILX 18
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]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;
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame^]33 int rt;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]34
35 switch (get_op(inst)) {
36 case 31:
37 switch (get_xop(inst)) {
38
39 case XOP_TLBRE:
40 emulated = kvmppc_e500_emul_tlbre(vcpu);
41 break;
42
43 case XOP_TLBWE:
44 emulated = kvmppc_e500_emul_tlbwe(vcpu);
45 break;
46
47 case XOP_TLBSX:
48 rb = get_rb(inst);
49 emulated = kvmppc_e500_emul_tlbsx(vcpu,rb);
50 break;
51
Scott Woodab9fc402011-12-20 15:34:39 +0000[diff] [blame^]52 case XOP_TLBILX:
53 ra = get_ra(inst);
54 rb = get_rb(inst);
55 rt = get_rt(inst);
56 emulated = kvmppc_e500_emul_tlbilx(vcpu, rt, ra, rb);
57 break;
58
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]59 case XOP_TLBIVAX:
60 ra = get_ra(inst);
61 rb = get_rb(inst);
62 emulated = kvmppc_e500_emul_tlbivax(vcpu, ra, rb);
63 break;
64
65 default:
66 emulated = EMULATE_FAIL;
67 }
68
69 break;
70
71 default:
72 emulated = EMULATE_FAIL;
73 }
74
75 if (emulated == EMULATE_FAIL)
76 emulated = kvmppc_booke_emulate_op(run, vcpu, inst, advance);
77
78 return emulated;
79}
80
81int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
82{
83 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
84 int emulated = EMULATE_DONE;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]85 ulong spr_val = kvmppc_get_gpr(vcpu, rs);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]86
87 switch (sprn) {
88 case SPRN_PID:
Scott Wood5ce941e2011-04-27 17:24:21 -0500[diff] [blame]89 kvmppc_set_pid(vcpu, spr_val);
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]90 break;
91 case SPRN_PID1:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]92 if (spr_val != 0)
93 return EMULATE_FAIL;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]94 vcpu_e500->pid[1] = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]95 case SPRN_PID2:
Liu Yudd9ebf1f2011-06-14 18:35:14 -0500[diff] [blame]96 if (spr_val != 0)
97 return EMULATE_FAIL;
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]98 vcpu_e500->pid[2] = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]99 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]100 vcpu->arch.shared->mas0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]101 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]102 vcpu->arch.shared->mas1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]103 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]104 vcpu->arch.shared->mas2 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]105 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]106 vcpu->arch.shared->mas7_3 &= ~(u64)0xffffffff;
107 vcpu->arch.shared->mas7_3 |= spr_val;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]108 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]109 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]110 vcpu->arch.shared->mas4 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]111 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]112 vcpu->arch.shared->mas6 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]113 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]114 vcpu->arch.shared->mas7_3 &= (u64)0xffffffff;
115 vcpu->arch.shared->mas7_3 |= (u64)spr_val << 32;
Scott Wooddc83b8b2011-08-18 15:25:21 -0500[diff] [blame]116 break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]117 case SPRN_L1CSR0:
118 vcpu_e500->l1csr0 = spr_val;
119 vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC);
120 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]121 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]122 vcpu_e500->l1csr1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]123 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]124 vcpu_e500->hid0 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]125 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]126 vcpu_e500->hid1 = spr_val; break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]127
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]128 case SPRN_MMUCSR0:
129 emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]130 spr_val);
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]131 break;
132
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]133 /* extra exceptions */
134 case SPRN_IVOR32:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]135 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]136 break;
137 case SPRN_IVOR33:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]138 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]139 break;
140 case SPRN_IVOR34:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]141 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]142 break;
143 case SPRN_IVOR35:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]144 vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] = spr_val;
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]145 break;
146
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]147 default:
148 emulated = kvmppc_booke_emulate_mtspr(vcpu, sprn, rs);
149 }
150
151 return emulated;
152}
153
154int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
155{
156 struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
157 int emulated = EMULATE_DONE;
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]158 unsigned long val;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]159
160 switch (sprn) {
161 case SPRN_PID:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]162 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[0]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]163 case SPRN_PID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]164 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[1]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]165 case SPRN_PID2:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]166 kvmppc_set_gpr(vcpu, rt, vcpu_e500->pid[2]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]167 case SPRN_MAS0:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]168 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]169 case SPRN_MAS1:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]170 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]171 case SPRN_MAS2:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]172 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas2); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]173 case SPRN_MAS3:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]174 val = (u32)vcpu->arch.shared->mas7_3;
175 kvmppc_set_gpr(vcpu, rt, val);
176 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]177 case SPRN_MAS4:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]178 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas4); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]179 case SPRN_MAS6:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]180 kvmppc_set_gpr(vcpu, rt, vcpu->arch.shared->mas6); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]181 case SPRN_MAS7:
Scott Woodb5904972011-11-08 18:23:30 -0600[diff] [blame]182 val = vcpu->arch.shared->mas7_3 >> 32;
183 kvmppc_set_gpr(vcpu, rt, val);
184 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]185 case SPRN_TLB0CFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]186 kvmppc_set_gpr(vcpu, rt, vcpu->arch.tlbcfg[0]); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]187 case SPRN_TLB1CFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]188 kvmppc_set_gpr(vcpu, rt, vcpu->arch.tlbcfg[1]); break;
Liu Yud86be072010-01-22 18:50:29 +0800[diff] [blame]189 case SPRN_L1CSR0:
190 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]191 case SPRN_L1CSR1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]192 kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]193 case SPRN_HID0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]194 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]195 case SPRN_HID1:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]196 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
Scott Wood90d34b02011-03-29 16:49:10 -0500[diff] [blame]197 case SPRN_SVR:
198 kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]199
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]200 case SPRN_MMUCSR0:
Alexander Graf8e5b26b2010-01-08 02:58:01 +0100[diff] [blame]201 kvmppc_set_gpr(vcpu, rt, 0); break;
Liu Yub0a18352009-02-17 16:52:08 +0800[diff] [blame]202
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]203 case SPRN_MMUCFG:
Scott Wood8fdd21a22011-12-20 15:34:34 +0000[diff] [blame]204 kvmppc_set_gpr(vcpu, rt, vcpu->arch.mmucfg); break;
Liu Yu06579dd2009-06-05 14:54:31 +0800[diff] [blame]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 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL]);
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 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_DATA]);
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 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_FP_ROUND]);
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 kvmppc_set_gpr(vcpu, rt, vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR]);
Hollis Blanchardbb3a8a12009-01-03 16:23:13 -0600[diff] [blame]218 break;
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600[diff] [blame]219 default:
220 emulated = kvmppc_booke_emulate_mfspr(vcpu, sprn, rt);
221 }
222
223 return emulated;
224}
225