root / target-s390x / kvm.c @ a0fa2cb8
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1 | 0e60a699 | Alexander Graf | /*
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2 | 0e60a699 | Alexander Graf | * QEMU S390x KVM implementation
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3 | 0e60a699 | Alexander Graf | *
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4 | 0e60a699 | Alexander Graf | * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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5 | ccb084d3 | Christian Borntraeger | * Copyright IBM Corp. 2012
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6 | 0e60a699 | Alexander Graf | *
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7 | 0e60a699 | Alexander Graf | * This library is free software; you can redistribute it and/or
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8 | 0e60a699 | Alexander Graf | * modify it under the terms of the GNU Lesser General Public
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9 | 0e60a699 | Alexander Graf | * License as published by the Free Software Foundation; either
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10 | 0e60a699 | Alexander Graf | * version 2 of the License, or (at your option) any later version.
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11 | 0e60a699 | Alexander Graf | *
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12 | 0e60a699 | Alexander Graf | * This library is distributed in the hope that it will be useful,
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13 | 0e60a699 | Alexander Graf | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | 0e60a699 | Alexander Graf | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | 0e60a699 | Alexander Graf | * Lesser General Public License for more details.
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16 | 0e60a699 | Alexander Graf | *
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17 | ccb084d3 | Christian Borntraeger | * Contributions after 2012-10-29 are licensed under the terms of the
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18 | ccb084d3 | Christian Borntraeger | * GNU GPL, version 2 or (at your option) any later version.
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19 | ccb084d3 | Christian Borntraeger | *
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20 | ccb084d3 | Christian Borntraeger | * You should have received a copy of the GNU (Lesser) General Public
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21 | 0e60a699 | Alexander Graf | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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22 | 0e60a699 | Alexander Graf | */
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23 | 0e60a699 | Alexander Graf | |
24 | 0e60a699 | Alexander Graf | #include <sys/types.h> |
25 | 0e60a699 | Alexander Graf | #include <sys/ioctl.h> |
26 | 0e60a699 | Alexander Graf | #include <sys/mman.h> |
27 | 0e60a699 | Alexander Graf | |
28 | 0e60a699 | Alexander Graf | #include <linux/kvm.h> |
29 | 0e60a699 | Alexander Graf | #include <asm/ptrace.h> |
30 | 0e60a699 | Alexander Graf | |
31 | 0e60a699 | Alexander Graf | #include "qemu-common.h" |
32 | 1de7afc9 | Paolo Bonzini | #include "qemu/timer.h" |
33 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
34 | 9c17d615 | Paolo Bonzini | #include "sysemu/kvm.h" |
35 | 0e60a699 | Alexander Graf | #include "cpu.h" |
36 | 9c17d615 | Paolo Bonzini | #include "sysemu/device_tree.h" |
37 | 08eb8c85 | Christian Borntraeger | #include "qapi/qmp/qjson.h" |
38 | 08eb8c85 | Christian Borntraeger | #include "monitor/monitor.h" |
39 | 0e60a699 | Alexander Graf | |
40 | 0e60a699 | Alexander Graf | /* #define DEBUG_KVM */
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41 | 0e60a699 | Alexander Graf | |
42 | 0e60a699 | Alexander Graf | #ifdef DEBUG_KVM
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43 | e67137c6 | Peter Maydell | #define DPRINTF(fmt, ...) \
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44 | 0e60a699 | Alexander Graf | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
45 | 0e60a699 | Alexander Graf | #else
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46 | e67137c6 | Peter Maydell | #define DPRINTF(fmt, ...) \
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47 | 0e60a699 | Alexander Graf | do { } while (0) |
48 | 0e60a699 | Alexander Graf | #endif
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49 | 0e60a699 | Alexander Graf | |
50 | 0e60a699 | Alexander Graf | #define IPA0_DIAG 0x8300 |
51 | 0e60a699 | Alexander Graf | #define IPA0_SIGP 0xae00 |
52 | 09b99878 | Cornelia Huck | #define IPA0_B2 0xb200 |
53 | 09b99878 | Cornelia Huck | #define IPA0_B9 0xb900 |
54 | 09b99878 | Cornelia Huck | #define IPA0_EB 0xeb00 |
55 | 0e60a699 | Alexander Graf | |
56 | 0e60a699 | Alexander Graf | #define PRIV_SCLP_CALL 0x20 |
57 | 09b99878 | Cornelia Huck | #define PRIV_CSCH 0x30 |
58 | 09b99878 | Cornelia Huck | #define PRIV_HSCH 0x31 |
59 | 09b99878 | Cornelia Huck | #define PRIV_MSCH 0x32 |
60 | 09b99878 | Cornelia Huck | #define PRIV_SSCH 0x33 |
61 | 09b99878 | Cornelia Huck | #define PRIV_STSCH 0x34 |
62 | 09b99878 | Cornelia Huck | #define PRIV_TSCH 0x35 |
63 | 09b99878 | Cornelia Huck | #define PRIV_TPI 0x36 |
64 | 09b99878 | Cornelia Huck | #define PRIV_SAL 0x37 |
65 | 09b99878 | Cornelia Huck | #define PRIV_RSCH 0x38 |
66 | 09b99878 | Cornelia Huck | #define PRIV_STCRW 0x39 |
67 | 09b99878 | Cornelia Huck | #define PRIV_STCPS 0x3a |
68 | 09b99878 | Cornelia Huck | #define PRIV_RCHP 0x3b |
69 | 09b99878 | Cornelia Huck | #define PRIV_SCHM 0x3c |
70 | 09b99878 | Cornelia Huck | #define PRIV_CHSC 0x5f |
71 | 09b99878 | Cornelia Huck | #define PRIV_SIGA 0x74 |
72 | 09b99878 | Cornelia Huck | #define PRIV_XSCH 0x76 |
73 | 09b99878 | Cornelia Huck | #define PRIV_SQBS 0x8a |
74 | 09b99878 | Cornelia Huck | #define PRIV_EQBS 0x9c |
75 | 268846ba | Eugene (jno) Dvurechenski | #define DIAG_IPL 0x308 |
76 | 0e60a699 | Alexander Graf | #define DIAG_KVM_HYPERCALL 0x500 |
77 | 0e60a699 | Alexander Graf | #define DIAG_KVM_BREAKPOINT 0x501 |
78 | 0e60a699 | Alexander Graf | |
79 | 0e60a699 | Alexander Graf | #define ICPT_INSTRUCTION 0x04 |
80 | 0e60a699 | Alexander Graf | #define ICPT_WAITPSW 0x1c |
81 | 0e60a699 | Alexander Graf | #define ICPT_SOFT_INTERCEPT 0x24 |
82 | 0e60a699 | Alexander Graf | #define ICPT_CPU_STOP 0x28 |
83 | 0e60a699 | Alexander Graf | #define ICPT_IO 0x40 |
84 | 0e60a699 | Alexander Graf | |
85 | 94a8d39a | Jan Kiszka | const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
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86 | 94a8d39a | Jan Kiszka | KVM_CAP_LAST_INFO |
87 | 94a8d39a | Jan Kiszka | }; |
88 | 94a8d39a | Jan Kiszka | |
89 | 5b08b344 | Christian Borntraeger | static int cap_sync_regs; |
90 | 819bd309 | Dominik Dingel | static int cap_async_pf; |
91 | 5b08b344 | Christian Borntraeger | |
92 | 575ddeb4 | Stefan Weil | static void *legacy_s390_alloc(size_t size); |
93 | 91138037 | Markus Armbruster | |
94 | cad1e282 | Jan Kiszka | int kvm_arch_init(KVMState *s)
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95 | 0e60a699 | Alexander Graf | { |
96 | 5b08b344 | Christian Borntraeger | cap_sync_regs = kvm_check_extension(s, KVM_CAP_SYNC_REGS); |
97 | 819bd309 | Dominik Dingel | cap_async_pf = kvm_check_extension(s, KVM_CAP_ASYNC_PF); |
98 | 91138037 | Markus Armbruster | if (!kvm_check_extension(s, KVM_CAP_S390_GMAP)
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99 | 91138037 | Markus Armbruster | || !kvm_check_extension(s, KVM_CAP_S390_COW)) { |
100 | 91138037 | Markus Armbruster | phys_mem_set_alloc(legacy_s390_alloc); |
101 | 91138037 | Markus Armbruster | } |
102 | 0e60a699 | Alexander Graf | return 0; |
103 | 0e60a699 | Alexander Graf | } |
104 | 0e60a699 | Alexander Graf | |
105 | b164e48e | Eduardo Habkost | unsigned long kvm_arch_vcpu_id(CPUState *cpu) |
106 | b164e48e | Eduardo Habkost | { |
107 | b164e48e | Eduardo Habkost | return cpu->cpu_index;
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108 | b164e48e | Eduardo Habkost | } |
109 | b164e48e | Eduardo Habkost | |
110 | 20d695a9 | Andreas Färber | int kvm_arch_init_vcpu(CPUState *cpu)
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111 | 0e60a699 | Alexander Graf | { |
112 | 1c9d2a1d | Christian Borntraeger | /* nothing todo yet */
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113 | 1c9d2a1d | Christian Borntraeger | return 0; |
114 | 0e60a699 | Alexander Graf | } |
115 | 0e60a699 | Alexander Graf | |
116 | 20d695a9 | Andreas Färber | void kvm_arch_reset_vcpu(CPUState *cpu)
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117 | 0e60a699 | Alexander Graf | { |
118 | 419831d7 | Alexander Graf | /* The initial reset call is needed here to reset in-kernel
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119 | 419831d7 | Alexander Graf | * vcpu data that we can't access directly from QEMU
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120 | 419831d7 | Alexander Graf | * (i.e. with older kernels which don't support sync_regs/ONE_REG).
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121 | 419831d7 | Alexander Graf | * Before this ioctl cpu_synchronize_state() is called in common kvm
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122 | 419831d7 | Alexander Graf | * code (kvm-all) */
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123 | 70bada03 | Jens Freimann | if (kvm_vcpu_ioctl(cpu, KVM_S390_INITIAL_RESET, NULL)) { |
124 | 70bada03 | Jens Freimann | perror("Can't reset vcpu\n");
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125 | 70bada03 | Jens Freimann | } |
126 | 0e60a699 | Alexander Graf | } |
127 | 0e60a699 | Alexander Graf | |
128 | 20d695a9 | Andreas Färber | int kvm_arch_put_registers(CPUState *cs, int level) |
129 | 0e60a699 | Alexander Graf | { |
130 | 20d695a9 | Andreas Färber | S390CPU *cpu = S390_CPU(cs); |
131 | 20d695a9 | Andreas Färber | CPUS390XState *env = &cpu->env; |
132 | 420840e5 | Jason J. Herne | struct kvm_one_reg reg;
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133 | 5b08b344 | Christian Borntraeger | struct kvm_sregs sregs;
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134 | 0e60a699 | Alexander Graf | struct kvm_regs regs;
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135 | 0e60a699 | Alexander Graf | int ret;
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136 | 0e60a699 | Alexander Graf | int i;
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137 | 0e60a699 | Alexander Graf | |
138 | 5b08b344 | Christian Borntraeger | /* always save the PSW and the GPRS*/
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139 | f7575c96 | Andreas Färber | cs->kvm_run->psw_addr = env->psw.addr; |
140 | f7575c96 | Andreas Färber | cs->kvm_run->psw_mask = env->psw.mask; |
141 | 0e60a699 | Alexander Graf | |
142 | f7575c96 | Andreas Färber | if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_GPRS) {
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143 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
144 | f7575c96 | Andreas Färber | cs->kvm_run->s.regs.gprs[i] = env->regs[i]; |
145 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_GPRS; |
146 | 5b08b344 | Christian Borntraeger | } |
147 | 5b08b344 | Christian Borntraeger | } else {
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148 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
149 | 5b08b344 | Christian Borntraeger | regs.gprs[i] = env->regs[i]; |
150 | 5b08b344 | Christian Borntraeger | } |
151 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_SET_REGS, ®s); |
152 | 5b08b344 | Christian Borntraeger | if (ret < 0) { |
153 | 5b08b344 | Christian Borntraeger | return ret;
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154 | 5b08b344 | Christian Borntraeger | } |
155 | 0e60a699 | Alexander Graf | } |
156 | 0e60a699 | Alexander Graf | |
157 | 44c68de0 | Dominik Dingel | /* Do we need to save more than that? */
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158 | 44c68de0 | Dominik Dingel | if (level == KVM_PUT_RUNTIME_STATE) {
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159 | 44c68de0 | Dominik Dingel | return 0; |
160 | 44c68de0 | Dominik Dingel | } |
161 | 420840e5 | Jason J. Herne | |
162 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_CPU_TIMER; |
163 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->cputm); |
164 | 44c68de0 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
165 | 44c68de0 | Dominik Dingel | if (ret < 0) { |
166 | 44c68de0 | Dominik Dingel | return ret;
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167 | 44c68de0 | Dominik Dingel | } |
168 | 420840e5 | Jason J. Herne | |
169 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_CLOCK_COMP; |
170 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->ckc); |
171 | 44c68de0 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
172 | 44c68de0 | Dominik Dingel | if (ret < 0) { |
173 | 44c68de0 | Dominik Dingel | return ret;
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174 | 420840e5 | Jason J. Herne | } |
175 | 420840e5 | Jason J. Herne | |
176 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_TODPR; |
177 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->todpr); |
178 | 44c68de0 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
179 | 44c68de0 | Dominik Dingel | if (ret < 0) { |
180 | 44c68de0 | Dominik Dingel | return ret;
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181 | 0e60a699 | Alexander Graf | } |
182 | 0e60a699 | Alexander Graf | |
183 | 819bd309 | Dominik Dingel | if (cap_async_pf) {
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184 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFTOKEN; |
185 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_token); |
186 | 819bd309 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
187 | 819bd309 | Dominik Dingel | if (ret < 0) { |
188 | 819bd309 | Dominik Dingel | return ret;
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189 | 819bd309 | Dominik Dingel | } |
190 | 819bd309 | Dominik Dingel | |
191 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFCOMPARE; |
192 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_compare); |
193 | 819bd309 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
194 | 819bd309 | Dominik Dingel | if (ret < 0) { |
195 | 819bd309 | Dominik Dingel | return ret;
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196 | 819bd309 | Dominik Dingel | } |
197 | 819bd309 | Dominik Dingel | |
198 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFSELECT; |
199 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_select); |
200 | 819bd309 | Dominik Dingel | ret = kvm_vcpu_ioctl(cs, KVM_SET_ONE_REG, ®); |
201 | 819bd309 | Dominik Dingel | if (ret < 0) { |
202 | 819bd309 | Dominik Dingel | return ret;
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203 | 819bd309 | Dominik Dingel | } |
204 | 819bd309 | Dominik Dingel | } |
205 | 819bd309 | Dominik Dingel | |
206 | 5b08b344 | Christian Borntraeger | if (cap_sync_regs &&
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207 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_valid_regs & KVM_SYNC_ACRS && |
208 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_valid_regs & KVM_SYNC_CRS) { |
209 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
210 | f7575c96 | Andreas Färber | cs->kvm_run->s.regs.acrs[i] = env->aregs[i]; |
211 | f7575c96 | Andreas Färber | cs->kvm_run->s.regs.crs[i] = env->cregs[i]; |
212 | 5b08b344 | Christian Borntraeger | } |
213 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ACRS; |
214 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_CRS; |
215 | 5b08b344 | Christian Borntraeger | } else {
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216 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
217 | 5b08b344 | Christian Borntraeger | sregs.acrs[i] = env->aregs[i]; |
218 | 5b08b344 | Christian Borntraeger | sregs.crs[i] = env->cregs[i]; |
219 | 5b08b344 | Christian Borntraeger | } |
220 | 1bc22652 | Andreas Färber | ret = kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs); |
221 | 5b08b344 | Christian Borntraeger | if (ret < 0) { |
222 | 5b08b344 | Christian Borntraeger | return ret;
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223 | 5b08b344 | Christian Borntraeger | } |
224 | 5b08b344 | Christian Borntraeger | } |
225 | 0e60a699 | Alexander Graf | |
226 | 5b08b344 | Christian Borntraeger | /* Finally the prefix */
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227 | f7575c96 | Andreas Färber | if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_PREFIX) {
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228 | f7575c96 | Andreas Färber | cs->kvm_run->s.regs.prefix = env->psa; |
229 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PREFIX; |
230 | 5b08b344 | Christian Borntraeger | } else {
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231 | 5b08b344 | Christian Borntraeger | /* prefix is only supported via sync regs */
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232 | 5b08b344 | Christian Borntraeger | } |
233 | 5b08b344 | Christian Borntraeger | return 0; |
234 | 0e60a699 | Alexander Graf | } |
235 | 0e60a699 | Alexander Graf | |
236 | 20d695a9 | Andreas Färber | int kvm_arch_get_registers(CPUState *cs)
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237 | 0e60a699 | Alexander Graf | { |
238 | 20d695a9 | Andreas Färber | S390CPU *cpu = S390_CPU(cs); |
239 | 20d695a9 | Andreas Färber | CPUS390XState *env = &cpu->env; |
240 | 420840e5 | Jason J. Herne | struct kvm_one_reg reg;
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241 | 5b08b344 | Christian Borntraeger | struct kvm_sregs sregs;
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242 | 0e60a699 | Alexander Graf | struct kvm_regs regs;
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243 | 44c68de0 | Dominik Dingel | int i, r;
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244 | 420840e5 | Jason J. Herne | |
245 | 5b08b344 | Christian Borntraeger | /* get the PSW */
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246 | f7575c96 | Andreas Färber | env->psw.addr = cs->kvm_run->psw_addr; |
247 | f7575c96 | Andreas Färber | env->psw.mask = cs->kvm_run->psw_mask; |
248 | 5b08b344 | Christian Borntraeger | |
249 | 5b08b344 | Christian Borntraeger | /* the GPRS */
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250 | f7575c96 | Andreas Färber | if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_GPRS) {
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251 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
252 | f7575c96 | Andreas Färber | env->regs[i] = cs->kvm_run->s.regs.gprs[i]; |
253 | 5b08b344 | Christian Borntraeger | } |
254 | 5b08b344 | Christian Borntraeger | } else {
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255 | 44c68de0 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_REGS, ®s); |
256 | 44c68de0 | Dominik Dingel | if (r < 0) { |
257 | 44c68de0 | Dominik Dingel | return r;
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258 | 5b08b344 | Christian Borntraeger | } |
259 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
260 | 5b08b344 | Christian Borntraeger | env->regs[i] = regs.gprs[i]; |
261 | 5b08b344 | Christian Borntraeger | } |
262 | 0e60a699 | Alexander Graf | } |
263 | 0e60a699 | Alexander Graf | |
264 | 5b08b344 | Christian Borntraeger | /* The ACRS and CRS */
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265 | 5b08b344 | Christian Borntraeger | if (cap_sync_regs &&
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266 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_valid_regs & KVM_SYNC_ACRS && |
267 | f7575c96 | Andreas Färber | cs->kvm_run->kvm_valid_regs & KVM_SYNC_CRS) { |
268 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
269 | f7575c96 | Andreas Färber | env->aregs[i] = cs->kvm_run->s.regs.acrs[i]; |
270 | f7575c96 | Andreas Färber | env->cregs[i] = cs->kvm_run->s.regs.crs[i]; |
271 | 5b08b344 | Christian Borntraeger | } |
272 | 5b08b344 | Christian Borntraeger | } else {
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273 | 44c68de0 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); |
274 | 44c68de0 | Dominik Dingel | if (r < 0) { |
275 | 44c68de0 | Dominik Dingel | return r;
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276 | 5b08b344 | Christian Borntraeger | } |
277 | 5b08b344 | Christian Borntraeger | for (i = 0; i < 16; i++) { |
278 | 5b08b344 | Christian Borntraeger | env->aregs[i] = sregs.acrs[i]; |
279 | 5b08b344 | Christian Borntraeger | env->cregs[i] = sregs.crs[i]; |
280 | 5b08b344 | Christian Borntraeger | } |
281 | 0e60a699 | Alexander Graf | } |
282 | 0e60a699 | Alexander Graf | |
283 | 44c68de0 | Dominik Dingel | /* The prefix */
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284 | f7575c96 | Andreas Färber | if (cap_sync_regs && cs->kvm_run->kvm_valid_regs & KVM_SYNC_PREFIX) {
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285 | f7575c96 | Andreas Färber | env->psa = cs->kvm_run->s.regs.prefix; |
286 | 5b08b344 | Christian Borntraeger | } |
287 | 0e60a699 | Alexander Graf | |
288 | 44c68de0 | Dominik Dingel | /* One Regs */
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289 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_CPU_TIMER; |
290 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->cputm); |
291 | 44c68de0 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
292 | 44c68de0 | Dominik Dingel | if (r < 0) { |
293 | 44c68de0 | Dominik Dingel | return r;
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294 | 44c68de0 | Dominik Dingel | } |
295 | 44c68de0 | Dominik Dingel | |
296 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_CLOCK_COMP; |
297 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->ckc); |
298 | 44c68de0 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
299 | 44c68de0 | Dominik Dingel | if (r < 0) { |
300 | 44c68de0 | Dominik Dingel | return r;
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301 | 44c68de0 | Dominik Dingel | } |
302 | 44c68de0 | Dominik Dingel | |
303 | 44c68de0 | Dominik Dingel | reg.id = KVM_REG_S390_TODPR; |
304 | 44c68de0 | Dominik Dingel | reg.addr = (__u64)&(env->todpr); |
305 | 44c68de0 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
306 | 44c68de0 | Dominik Dingel | if (r < 0) { |
307 | 44c68de0 | Dominik Dingel | return r;
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308 | 44c68de0 | Dominik Dingel | } |
309 | 44c68de0 | Dominik Dingel | |
310 | 819bd309 | Dominik Dingel | if (cap_async_pf) {
|
311 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFTOKEN; |
312 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_token); |
313 | 819bd309 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
314 | 819bd309 | Dominik Dingel | if (r < 0) { |
315 | 819bd309 | Dominik Dingel | return r;
|
316 | 819bd309 | Dominik Dingel | } |
317 | 819bd309 | Dominik Dingel | |
318 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFCOMPARE; |
319 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_compare); |
320 | 819bd309 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
321 | 819bd309 | Dominik Dingel | if (r < 0) { |
322 | 819bd309 | Dominik Dingel | return r;
|
323 | 819bd309 | Dominik Dingel | } |
324 | 819bd309 | Dominik Dingel | |
325 | 819bd309 | Dominik Dingel | reg.id = KVM_REG_S390_PFSELECT; |
326 | 819bd309 | Dominik Dingel | reg.addr = (__u64)&(env->pfault_select); |
327 | 819bd309 | Dominik Dingel | r = kvm_vcpu_ioctl(cs, KVM_GET_ONE_REG, ®); |
328 | 819bd309 | Dominik Dingel | if (r < 0) { |
329 | 819bd309 | Dominik Dingel | return r;
|
330 | 819bd309 | Dominik Dingel | } |
331 | 819bd309 | Dominik Dingel | } |
332 | 819bd309 | Dominik Dingel | |
333 | 0e60a699 | Alexander Graf | return 0; |
334 | 0e60a699 | Alexander Graf | } |
335 | 0e60a699 | Alexander Graf | |
336 | fdec9918 | Christian Borntraeger | /*
|
337 | fdec9918 | Christian Borntraeger | * Legacy layout for s390:
|
338 | fdec9918 | Christian Borntraeger | * Older S390 KVM requires the topmost vma of the RAM to be
|
339 | fdec9918 | Christian Borntraeger | * smaller than an system defined value, which is at least 256GB.
|
340 | fdec9918 | Christian Borntraeger | * Larger systems have larger values. We put the guest between
|
341 | fdec9918 | Christian Borntraeger | * the end of data segment (system break) and this value. We
|
342 | fdec9918 | Christian Borntraeger | * use 32GB as a base to have enough room for the system break
|
343 | fdec9918 | Christian Borntraeger | * to grow. We also have to use MAP parameters that avoid
|
344 | fdec9918 | Christian Borntraeger | * read-only mapping of guest pages.
|
345 | fdec9918 | Christian Borntraeger | */
|
346 | 575ddeb4 | Stefan Weil | static void *legacy_s390_alloc(size_t size) |
347 | fdec9918 | Christian Borntraeger | { |
348 | fdec9918 | Christian Borntraeger | void *mem;
|
349 | fdec9918 | Christian Borntraeger | |
350 | fdec9918 | Christian Borntraeger | mem = mmap((void *) 0x800000000ULL, size, |
351 | fdec9918 | Christian Borntraeger | PROT_EXEC|PROT_READ|PROT_WRITE, |
352 | fdec9918 | Christian Borntraeger | MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); |
353 | 39228250 | Markus Armbruster | return mem == MAP_FAILED ? NULL : mem; |
354 | fdec9918 | Christian Borntraeger | } |
355 | fdec9918 | Christian Borntraeger | |
356 | 20d695a9 | Andreas Färber | int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
357 | 0e60a699 | Alexander Graf | { |
358 | 0e60a699 | Alexander Graf | static const uint8_t diag_501[] = {0x83, 0x24, 0x05, 0x01}; |
359 | 0e60a699 | Alexander Graf | |
360 | 9282b73a | Christian Borntraeger | if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 4, 0) || |
361 | 9282b73a | Christian Borntraeger | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)diag_501, 4, 1)) { |
362 | 0e60a699 | Alexander Graf | return -EINVAL;
|
363 | 0e60a699 | Alexander Graf | } |
364 | 0e60a699 | Alexander Graf | return 0; |
365 | 0e60a699 | Alexander Graf | } |
366 | 0e60a699 | Alexander Graf | |
367 | 20d695a9 | Andreas Färber | int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
368 | 0e60a699 | Alexander Graf | { |
369 | 0e60a699 | Alexander Graf | uint8_t t[4];
|
370 | 0e60a699 | Alexander Graf | static const uint8_t diag_501[] = {0x83, 0x24, 0x05, 0x01}; |
371 | 0e60a699 | Alexander Graf | |
372 | 9282b73a | Christian Borntraeger | if (cpu_memory_rw_debug(cs, bp->pc, t, 4, 0)) { |
373 | 0e60a699 | Alexander Graf | return -EINVAL;
|
374 | 0e60a699 | Alexander Graf | } else if (memcmp(t, diag_501, 4)) { |
375 | 0e60a699 | Alexander Graf | return -EINVAL;
|
376 | 9282b73a | Christian Borntraeger | } else if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, 1, 1)) { |
377 | 0e60a699 | Alexander Graf | return -EINVAL;
|
378 | 0e60a699 | Alexander Graf | } |
379 | 0e60a699 | Alexander Graf | |
380 | 0e60a699 | Alexander Graf | return 0; |
381 | 0e60a699 | Alexander Graf | } |
382 | 0e60a699 | Alexander Graf | |
383 | 20d695a9 | Andreas Färber | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) |
384 | 0e60a699 | Alexander Graf | { |
385 | 0e60a699 | Alexander Graf | } |
386 | 0e60a699 | Alexander Graf | |
387 | 20d695a9 | Andreas Färber | void kvm_arch_post_run(CPUState *cpu, struct kvm_run *run) |
388 | 0e60a699 | Alexander Graf | { |
389 | 0e60a699 | Alexander Graf | } |
390 | 0e60a699 | Alexander Graf | |
391 | 20d695a9 | Andreas Färber | int kvm_arch_process_async_events(CPUState *cs)
|
392 | 0af691d7 | Marcelo Tosatti | { |
393 | 225dc991 | Cornelia Huck | return cs->halted;
|
394 | 0af691d7 | Marcelo Tosatti | } |
395 | 0af691d7 | Marcelo Tosatti | |
396 | 1bc22652 | Andreas Färber | void kvm_s390_interrupt_internal(S390CPU *cpu, int type, uint32_t parm, |
397 | bcec36ea | Alexander Graf | uint64_t parm64, int vm)
|
398 | 0e60a699 | Alexander Graf | { |
399 | 1bc22652 | Andreas Färber | CPUState *cs = CPU(cpu); |
400 | 0e60a699 | Alexander Graf | struct kvm_s390_interrupt kvmint;
|
401 | 0e60a699 | Alexander Graf | int r;
|
402 | 0e60a699 | Alexander Graf | |
403 | a60f24b5 | Andreas Färber | if (!cs->kvm_state) {
|
404 | 0e60a699 | Alexander Graf | return;
|
405 | 0e60a699 | Alexander Graf | } |
406 | 0e60a699 | Alexander Graf | |
407 | 0e60a699 | Alexander Graf | kvmint.type = type; |
408 | 0e60a699 | Alexander Graf | kvmint.parm = parm; |
409 | 0e60a699 | Alexander Graf | kvmint.parm64 = parm64; |
410 | 0e60a699 | Alexander Graf | |
411 | 0e60a699 | Alexander Graf | if (vm) {
|
412 | a60f24b5 | Andreas Färber | r = kvm_vm_ioctl(cs->kvm_state, KVM_S390_INTERRUPT, &kvmint); |
413 | 0e60a699 | Alexander Graf | } else {
|
414 | 1bc22652 | Andreas Färber | r = kvm_vcpu_ioctl(cs, KVM_S390_INTERRUPT, &kvmint); |
415 | 0e60a699 | Alexander Graf | } |
416 | 0e60a699 | Alexander Graf | |
417 | 0e60a699 | Alexander Graf | if (r < 0) { |
418 | 0e60a699 | Alexander Graf | fprintf(stderr, "KVM failed to inject interrupt\n");
|
419 | 0e60a699 | Alexander Graf | exit(1);
|
420 | 0e60a699 | Alexander Graf | } |
421 | 0e60a699 | Alexander Graf | } |
422 | 0e60a699 | Alexander Graf | |
423 | 1bc22652 | Andreas Färber | void kvm_s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token) |
424 | 0e60a699 | Alexander Graf | { |
425 | 1bc22652 | Andreas Färber | kvm_s390_interrupt_internal(cpu, KVM_S390_INT_VIRTIO, config_change, |
426 | 0e60a699 | Alexander Graf | token, 1);
|
427 | 0e60a699 | Alexander Graf | } |
428 | 0e60a699 | Alexander Graf | |
429 | 1bc22652 | Andreas Färber | void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code) |
430 | 0e60a699 | Alexander Graf | { |
431 | 1bc22652 | Andreas Färber | kvm_s390_interrupt_internal(cpu, type, code, 0, 0); |
432 | 0e60a699 | Alexander Graf | } |
433 | 0e60a699 | Alexander Graf | |
434 | 1bc22652 | Andreas Färber | static void enter_pgmcheck(S390CPU *cpu, uint16_t code) |
435 | 0e60a699 | Alexander Graf | { |
436 | 1bc22652 | Andreas Färber | kvm_s390_interrupt(cpu, KVM_S390_PROGRAM_INT, code); |
437 | 0e60a699 | Alexander Graf | } |
438 | 0e60a699 | Alexander Graf | |
439 | 1bc22652 | Andreas Färber | static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, |
440 | bcec36ea | Alexander Graf | uint16_t ipbh0) |
441 | 0e60a699 | Alexander Graf | { |
442 | 1bc22652 | Andreas Färber | CPUS390XState *env = &cpu->env; |
443 | a0fa2cb8 | Thomas Huth | uint64_t sccb; |
444 | a0fa2cb8 | Thomas Huth | uint32_t code; |
445 | 0e60a699 | Alexander Graf | int r = 0; |
446 | 0e60a699 | Alexander Graf | |
447 | cb446eca | Andreas Färber | cpu_synchronize_state(CPU(cpu)); |
448 | 3ac85fb6 | Thomas Huth | if (env->psw.mask & PSW_MASK_PSTATE) {
|
449 | 3ac85fb6 | Thomas Huth | enter_pgmcheck(cpu, PGM_PRIVILEGED); |
450 | 3ac85fb6 | Thomas Huth | return 0; |
451 | 3ac85fb6 | Thomas Huth | } |
452 | 0e60a699 | Alexander Graf | sccb = env->regs[ipbh0 & 0xf];
|
453 | 0e60a699 | Alexander Graf | code = env->regs[(ipbh0 & 0xf0) >> 4]; |
454 | 0e60a699 | Alexander Graf | |
455 | f6c98f92 | Heinz Graalfs | r = sclp_service_call(sccb, code); |
456 | 9abf567d | Christian Borntraeger | if (r < 0) { |
457 | 1bc22652 | Andreas Färber | enter_pgmcheck(cpu, -r); |
458 | 0e60a699 | Alexander Graf | } |
459 | f7575c96 | Andreas Färber | setcc(cpu, r); |
460 | 81f7c56c | Alexander Graf | |
461 | 0e60a699 | Alexander Graf | return 0; |
462 | 0e60a699 | Alexander Graf | } |
463 | 0e60a699 | Alexander Graf | |
464 | 09b99878 | Cornelia Huck | static int kvm_handle_css_inst(S390CPU *cpu, struct kvm_run *run, |
465 | 09b99878 | Cornelia Huck | uint8_t ipa0, uint8_t ipa1, uint8_t ipb) |
466 | 09b99878 | Cornelia Huck | { |
467 | 09b99878 | Cornelia Huck | CPUS390XState *env = &cpu->env; |
468 | 09b99878 | Cornelia Huck | |
469 | 09b99878 | Cornelia Huck | if (ipa0 != 0xb2) { |
470 | 09b99878 | Cornelia Huck | /* Not handled for now. */
|
471 | 09b99878 | Cornelia Huck | return -1; |
472 | 09b99878 | Cornelia Huck | } |
473 | 3474b679 | Jason J. Herne | |
474 | 44c68de0 | Dominik Dingel | cpu_synchronize_state(CPU(cpu)); |
475 | 3474b679 | Jason J. Herne | |
476 | 09b99878 | Cornelia Huck | switch (ipa1) {
|
477 | 09b99878 | Cornelia Huck | case PRIV_XSCH:
|
478 | 5d9bf1c0 | Thomas Huth | ioinst_handle_xsch(cpu, env->regs[1]);
|
479 | 09b99878 | Cornelia Huck | break;
|
480 | 09b99878 | Cornelia Huck | case PRIV_CSCH:
|
481 | 5d9bf1c0 | Thomas Huth | ioinst_handle_csch(cpu, env->regs[1]);
|
482 | 09b99878 | Cornelia Huck | break;
|
483 | 09b99878 | Cornelia Huck | case PRIV_HSCH:
|
484 | 5d9bf1c0 | Thomas Huth | ioinst_handle_hsch(cpu, env->regs[1]);
|
485 | 09b99878 | Cornelia Huck | break;
|
486 | 09b99878 | Cornelia Huck | case PRIV_MSCH:
|
487 | 5d9bf1c0 | Thomas Huth | ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb);
|
488 | 09b99878 | Cornelia Huck | break;
|
489 | 09b99878 | Cornelia Huck | case PRIV_SSCH:
|
490 | 5d9bf1c0 | Thomas Huth | ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb);
|
491 | 09b99878 | Cornelia Huck | break;
|
492 | 09b99878 | Cornelia Huck | case PRIV_STCRW:
|
493 | 5d9bf1c0 | Thomas Huth | ioinst_handle_stcrw(cpu, run->s390_sieic.ipb); |
494 | 09b99878 | Cornelia Huck | break;
|
495 | 09b99878 | Cornelia Huck | case PRIV_STSCH:
|
496 | 5d9bf1c0 | Thomas Huth | ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb);
|
497 | 09b99878 | Cornelia Huck | break;
|
498 | 09b99878 | Cornelia Huck | case PRIV_TSCH:
|
499 | 09b99878 | Cornelia Huck | /* We should only get tsch via KVM_EXIT_S390_TSCH. */
|
500 | 09b99878 | Cornelia Huck | fprintf(stderr, "Spurious tsch intercept\n");
|
501 | 09b99878 | Cornelia Huck | break;
|
502 | 09b99878 | Cornelia Huck | case PRIV_CHSC:
|
503 | 5d9bf1c0 | Thomas Huth | ioinst_handle_chsc(cpu, run->s390_sieic.ipb); |
504 | 09b99878 | Cornelia Huck | break;
|
505 | 09b99878 | Cornelia Huck | case PRIV_TPI:
|
506 | 09b99878 | Cornelia Huck | /* This should have been handled by kvm already. */
|
507 | 09b99878 | Cornelia Huck | fprintf(stderr, "Spurious tpi intercept\n");
|
508 | 09b99878 | Cornelia Huck | break;
|
509 | 09b99878 | Cornelia Huck | case PRIV_SCHM:
|
510 | 5d9bf1c0 | Thomas Huth | ioinst_handle_schm(cpu, env->regs[1], env->regs[2], |
511 | 5d9bf1c0 | Thomas Huth | run->s390_sieic.ipb); |
512 | 09b99878 | Cornelia Huck | break;
|
513 | 09b99878 | Cornelia Huck | case PRIV_RSCH:
|
514 | 5d9bf1c0 | Thomas Huth | ioinst_handle_rsch(cpu, env->regs[1]);
|
515 | 09b99878 | Cornelia Huck | break;
|
516 | 09b99878 | Cornelia Huck | case PRIV_RCHP:
|
517 | 5d9bf1c0 | Thomas Huth | ioinst_handle_rchp(cpu, env->regs[1]);
|
518 | 09b99878 | Cornelia Huck | break;
|
519 | 09b99878 | Cornelia Huck | case PRIV_STCPS:
|
520 | 09b99878 | Cornelia Huck | /* We do not provide this instruction, it is suppressed. */
|
521 | 09b99878 | Cornelia Huck | break;
|
522 | 09b99878 | Cornelia Huck | case PRIV_SAL:
|
523 | 5d9bf1c0 | Thomas Huth | ioinst_handle_sal(cpu, env->regs[1]);
|
524 | 09b99878 | Cornelia Huck | break;
|
525 | c1e8dfb5 | Thomas Huth | case PRIV_SIGA:
|
526 | c1e8dfb5 | Thomas Huth | /* Not provided, set CC = 3 for subchannel not operational */
|
527 | 5d9bf1c0 | Thomas Huth | setcc(cpu, 3);
|
528 | 09b99878 | Cornelia Huck | break;
|
529 | c1e8dfb5 | Thomas Huth | default:
|
530 | c1e8dfb5 | Thomas Huth | return -1; |
531 | 09b99878 | Cornelia Huck | } |
532 | 09b99878 | Cornelia Huck | |
533 | c1e8dfb5 | Thomas Huth | return 0; |
534 | 09b99878 | Cornelia Huck | } |
535 | 09b99878 | Cornelia Huck | |
536 | 09b99878 | Cornelia Huck | static int handle_priv(S390CPU *cpu, struct kvm_run *run, |
537 | 09b99878 | Cornelia Huck | uint8_t ipa0, uint8_t ipa1) |
538 | 0e60a699 | Alexander Graf | { |
539 | 0e60a699 | Alexander Graf | int r = 0; |
540 | 0e60a699 | Alexander Graf | uint16_t ipbh0 = (run->s390_sieic.ipb & 0xffff0000) >> 16; |
541 | 09b99878 | Cornelia Huck | uint8_t ipb = run->s390_sieic.ipb & 0xff;
|
542 | 0e60a699 | Alexander Graf | |
543 | e67137c6 | Peter Maydell | DPRINTF("KVM: PRIV: %d\n", ipa1);
|
544 | 0e60a699 | Alexander Graf | switch (ipa1) {
|
545 | 0e60a699 | Alexander Graf | case PRIV_SCLP_CALL:
|
546 | 1bc22652 | Andreas Färber | r = kvm_sclp_service_call(cpu, run, ipbh0); |
547 | 0e60a699 | Alexander Graf | break;
|
548 | 0e60a699 | Alexander Graf | default:
|
549 | c1e8dfb5 | Thomas Huth | r = kvm_handle_css_inst(cpu, run, ipa0, ipa1, ipb); |
550 | c1e8dfb5 | Thomas Huth | if (r == -1) { |
551 | c1e8dfb5 | Thomas Huth | DPRINTF("KVM: unhandled PRIV: 0x%x\n", ipa1);
|
552 | 09b99878 | Cornelia Huck | } |
553 | 0e60a699 | Alexander Graf | break;
|
554 | 0e60a699 | Alexander Graf | } |
555 | 0e60a699 | Alexander Graf | |
556 | 0e60a699 | Alexander Graf | return r;
|
557 | 0e60a699 | Alexander Graf | } |
558 | 0e60a699 | Alexander Graf | |
559 | 4fd6dd06 | Andreas Färber | static int handle_hypercall(S390CPU *cpu, struct kvm_run *run) |
560 | 0e60a699 | Alexander Graf | { |
561 | 4fd6dd06 | Andreas Färber | CPUS390XState *env = &cpu->env; |
562 | 77319f22 | Thomas Huth | int ret;
|
563 | 3474b679 | Jason J. Herne | |
564 | 44c68de0 | Dominik Dingel | cpu_synchronize_state(CPU(cpu)); |
565 | 77319f22 | Thomas Huth | ret = s390_virtio_hypercall(env); |
566 | 77319f22 | Thomas Huth | if (ret == -EINVAL) {
|
567 | 77319f22 | Thomas Huth | enter_pgmcheck(cpu, PGM_SPECIFICATION); |
568 | 77319f22 | Thomas Huth | return 0; |
569 | 77319f22 | Thomas Huth | } |
570 | 0e60a699 | Alexander Graf | |
571 | 77319f22 | Thomas Huth | return ret;
|
572 | 0e60a699 | Alexander Graf | } |
573 | 0e60a699 | Alexander Graf | |
574 | 268846ba | Eugene (jno) Dvurechenski | static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run) |
575 | 268846ba | Eugene (jno) Dvurechenski | { |
576 | 268846ba | Eugene (jno) Dvurechenski | uint64_t r1, r3; |
577 | 268846ba | Eugene (jno) Dvurechenski | |
578 | 268846ba | Eugene (jno) Dvurechenski | cpu_synchronize_state(CPU(cpu)); |
579 | 268846ba | Eugene (jno) Dvurechenski | r1 = (run->s390_sieic.ipa & 0x00f0) >> 8; |
580 | 268846ba | Eugene (jno) Dvurechenski | r3 = run->s390_sieic.ipa & 0x000f;
|
581 | 268846ba | Eugene (jno) Dvurechenski | handle_diag_308(&cpu->env, r1, r3); |
582 | 268846ba | Eugene (jno) Dvurechenski | } |
583 | 268846ba | Eugene (jno) Dvurechenski | |
584 | 638129ff | Cornelia Huck | #define DIAG_KVM_CODE_MASK 0x000000000000ffff |
585 | 638129ff | Cornelia Huck | |
586 | 638129ff | Cornelia Huck | static int handle_diag(S390CPU *cpu, struct kvm_run *run, uint32_t ipb) |
587 | 0e60a699 | Alexander Graf | { |
588 | 0e60a699 | Alexander Graf | int r = 0; |
589 | 638129ff | Cornelia Huck | uint16_t func_code; |
590 | 638129ff | Cornelia Huck | |
591 | 638129ff | Cornelia Huck | /*
|
592 | 638129ff | Cornelia Huck | * For any diagnose call we support, bits 48-63 of the resulting
|
593 | 638129ff | Cornelia Huck | * address specify the function code; the remainder is ignored.
|
594 | 638129ff | Cornelia Huck | */
|
595 | 638129ff | Cornelia Huck | func_code = decode_basedisp_rs(&cpu->env, ipb) & DIAG_KVM_CODE_MASK; |
596 | 638129ff | Cornelia Huck | switch (func_code) {
|
597 | 268846ba | Eugene (jno) Dvurechenski | case DIAG_IPL:
|
598 | 268846ba | Eugene (jno) Dvurechenski | kvm_handle_diag_308(cpu, run); |
599 | 268846ba | Eugene (jno) Dvurechenski | break;
|
600 | 39fbc5c6 | Christian Borntraeger | case DIAG_KVM_HYPERCALL:
|
601 | 39fbc5c6 | Christian Borntraeger | r = handle_hypercall(cpu, run); |
602 | 39fbc5c6 | Christian Borntraeger | break;
|
603 | 39fbc5c6 | Christian Borntraeger | case DIAG_KVM_BREAKPOINT:
|
604 | 39fbc5c6 | Christian Borntraeger | sleep(10);
|
605 | 39fbc5c6 | Christian Borntraeger | break;
|
606 | 39fbc5c6 | Christian Borntraeger | default:
|
607 | 638129ff | Cornelia Huck | DPRINTF("KVM: unknown DIAG: 0x%x\n", func_code);
|
608 | 39fbc5c6 | Christian Borntraeger | r = -1;
|
609 | 39fbc5c6 | Christian Borntraeger | break;
|
610 | 0e60a699 | Alexander Graf | } |
611 | 0e60a699 | Alexander Graf | |
612 | 0e60a699 | Alexander Graf | return r;
|
613 | 0e60a699 | Alexander Graf | } |
614 | 0e60a699 | Alexander Graf | |
615 | b20a461f | Thomas Huth | static int kvm_s390_cpu_start(S390CPU *cpu) |
616 | b20a461f | Thomas Huth | { |
617 | b20a461f | Thomas Huth | s390_add_running_cpu(cpu); |
618 | b20a461f | Thomas Huth | qemu_cpu_kick(CPU(cpu)); |
619 | b20a461f | Thomas Huth | DPRINTF("DONE: KVM cpu start: %p\n", &cpu->env);
|
620 | b20a461f | Thomas Huth | return 0; |
621 | b20a461f | Thomas Huth | } |
622 | b20a461f | Thomas Huth | |
623 | 7f7f9752 | Eugene (jno) Dvurechenski | int kvm_s390_cpu_restart(S390CPU *cpu)
|
624 | 0e60a699 | Alexander Graf | { |
625 | 1bc22652 | Andreas Färber | kvm_s390_interrupt(cpu, KVM_S390_RESTART, 0);
|
626 | 49e15878 | Andreas Färber | s390_add_running_cpu(cpu); |
627 | c08d7424 | Andreas Färber | qemu_cpu_kick(CPU(cpu)); |
628 | 7f7f9752 | Eugene (jno) Dvurechenski | DPRINTF("DONE: KVM cpu restart: %p\n", &cpu->env);
|
629 | 0e60a699 | Alexander Graf | return 0; |
630 | 0e60a699 | Alexander Graf | } |
631 | 0e60a699 | Alexander Graf | |
632 | 1bc22652 | Andreas Färber | static int s390_cpu_initial_reset(S390CPU *cpu) |
633 | 0e60a699 | Alexander Graf | { |
634 | cb446eca | Andreas Färber | CPUState *cs = CPU(cpu); |
635 | 1bc22652 | Andreas Färber | CPUS390XState *env = &cpu->env; |
636 | d5900813 | Alexander Graf | int i;
|
637 | d5900813 | Alexander Graf | |
638 | 49e15878 | Andreas Färber | s390_del_running_cpu(cpu); |
639 | cb446eca | Andreas Färber | if (kvm_vcpu_ioctl(cs, KVM_S390_INITIAL_RESET, NULL) < 0) { |
640 | d5900813 | Alexander Graf | perror("cannot init reset vcpu");
|
641 | d5900813 | Alexander Graf | } |
642 | d5900813 | Alexander Graf | |
643 | d5900813 | Alexander Graf | /* Manually zero out all registers */
|
644 | cb446eca | Andreas Färber | cpu_synchronize_state(cs); |
645 | d5900813 | Alexander Graf | for (i = 0; i < 16; i++) { |
646 | d5900813 | Alexander Graf | env->regs[i] = 0;
|
647 | d5900813 | Alexander Graf | } |
648 | d5900813 | Alexander Graf | |
649 | e67137c6 | Peter Maydell | DPRINTF("DONE: SIGP initial reset: %p\n", env);
|
650 | d5900813 | Alexander Graf | return 0; |
651 | 0e60a699 | Alexander Graf | } |
652 | 0e60a699 | Alexander Graf | |
653 | b8031adb | Thomas Huth | #define SIGP_ORDER_MASK 0x000000ff |
654 | b8031adb | Thomas Huth | |
655 | f7575c96 | Andreas Färber | static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) |
656 | 0e60a699 | Alexander Graf | { |
657 | f7575c96 | Andreas Färber | CPUS390XState *env = &cpu->env; |
658 | 0e60a699 | Alexander Graf | uint8_t order_code; |
659 | 0e60a699 | Alexander Graf | uint16_t cpu_addr; |
660 | 45fa769b | Andreas Färber | S390CPU *target_cpu; |
661 | 3796f0e1 | Thomas Huth | uint64_t *statusreg = &env->regs[ipa1 >> 4];
|
662 | 3796f0e1 | Thomas Huth | int cc;
|
663 | 0e60a699 | Alexander Graf | |
664 | cb446eca | Andreas Färber | cpu_synchronize_state(CPU(cpu)); |
665 | 0e60a699 | Alexander Graf | |
666 | 0e60a699 | Alexander Graf | /* get order code */
|
667 | b8031adb | Thomas Huth | order_code = decode_basedisp_rs(env, run->s390_sieic.ipb) & SIGP_ORDER_MASK; |
668 | 0e60a699 | Alexander Graf | |
669 | 0e60a699 | Alexander Graf | cpu_addr = env->regs[ipa1 & 0x0f];
|
670 | 45fa769b | Andreas Färber | target_cpu = s390_cpu_addr2state(cpu_addr); |
671 | 45fa769b | Andreas Färber | if (target_cpu == NULL) { |
672 | 3796f0e1 | Thomas Huth | cc = 3; /* not operational */ |
673 | 0e60a699 | Alexander Graf | goto out;
|
674 | 0e60a699 | Alexander Graf | } |
675 | 0e60a699 | Alexander Graf | |
676 | 0e60a699 | Alexander Graf | switch (order_code) {
|
677 | b20a461f | Thomas Huth | case SIGP_START:
|
678 | 3796f0e1 | Thomas Huth | cc = kvm_s390_cpu_start(target_cpu); |
679 | b20a461f | Thomas Huth | break;
|
680 | 0b9972a2 | Thomas Huth | case SIGP_RESTART:
|
681 | 3796f0e1 | Thomas Huth | cc = kvm_s390_cpu_restart(target_cpu); |
682 | 0b9972a2 | Thomas Huth | break;
|
683 | 0b9972a2 | Thomas Huth | case SIGP_SET_ARCH:
|
684 | 0788082a | Thomas Huth | *statusreg &= 0xffffffff00000000UL;
|
685 | 0788082a | Thomas Huth | *statusreg |= SIGP_STAT_INVALID_PARAMETER; |
686 | 0788082a | Thomas Huth | cc = 1; /* status stored */ |
687 | 0788082a | Thomas Huth | break;
|
688 | 0b9972a2 | Thomas Huth | case SIGP_INITIAL_CPU_RESET:
|
689 | 3796f0e1 | Thomas Huth | cc = s390_cpu_initial_reset(target_cpu); |
690 | 0b9972a2 | Thomas Huth | break;
|
691 | 0b9972a2 | Thomas Huth | default:
|
692 | 3796f0e1 | Thomas Huth | DPRINTF("KVM: unknown SIGP: 0x%x\n", order_code);
|
693 | 3796f0e1 | Thomas Huth | *statusreg &= 0xffffffff00000000UL;
|
694 | 3796f0e1 | Thomas Huth | *statusreg |= SIGP_STAT_INVALID_ORDER; |
695 | 3796f0e1 | Thomas Huth | cc = 1; /* status stored */ |
696 | 0b9972a2 | Thomas Huth | break;
|
697 | 0e60a699 | Alexander Graf | } |
698 | 0e60a699 | Alexander Graf | |
699 | 0e60a699 | Alexander Graf | out:
|
700 | 3796f0e1 | Thomas Huth | setcc(cpu, cc); |
701 | 0e60a699 | Alexander Graf | return 0; |
702 | 0e60a699 | Alexander Graf | } |
703 | 0e60a699 | Alexander Graf | |
704 | d2ee7746 | Thomas Huth | static void handle_instruction(S390CPU *cpu, struct kvm_run *run) |
705 | 0e60a699 | Alexander Graf | { |
706 | 0e60a699 | Alexander Graf | unsigned int ipa0 = (run->s390_sieic.ipa & 0xff00); |
707 | 0e60a699 | Alexander Graf | uint8_t ipa1 = run->s390_sieic.ipa & 0x00ff;
|
708 | d7963c43 | Alexander Graf | int r = -1; |
709 | 0e60a699 | Alexander Graf | |
710 | e67137c6 | Peter Maydell | DPRINTF("handle_instruction 0x%x 0x%x\n",
|
711 | e67137c6 | Peter Maydell | run->s390_sieic.ipa, run->s390_sieic.ipb); |
712 | 0e60a699 | Alexander Graf | switch (ipa0) {
|
713 | 09b99878 | Cornelia Huck | case IPA0_B2:
|
714 | 09b99878 | Cornelia Huck | case IPA0_B9:
|
715 | 09b99878 | Cornelia Huck | case IPA0_EB:
|
716 | 09b99878 | Cornelia Huck | r = handle_priv(cpu, run, ipa0 >> 8, ipa1);
|
717 | 09b99878 | Cornelia Huck | break;
|
718 | 09b99878 | Cornelia Huck | case IPA0_DIAG:
|
719 | 638129ff | Cornelia Huck | r = handle_diag(cpu, run, run->s390_sieic.ipb); |
720 | 09b99878 | Cornelia Huck | break;
|
721 | 09b99878 | Cornelia Huck | case IPA0_SIGP:
|
722 | 09b99878 | Cornelia Huck | r = handle_sigp(cpu, run, ipa1); |
723 | 09b99878 | Cornelia Huck | break;
|
724 | 0e60a699 | Alexander Graf | } |
725 | 0e60a699 | Alexander Graf | |
726 | 0e60a699 | Alexander Graf | if (r < 0) { |
727 | 1bc22652 | Andreas Färber | enter_pgmcheck(cpu, 0x0001);
|
728 | 0e60a699 | Alexander Graf | } |
729 | 0e60a699 | Alexander Graf | } |
730 | 0e60a699 | Alexander Graf | |
731 | f7575c96 | Andreas Färber | static bool is_special_wait_psw(CPUState *cs) |
732 | eca3ed03 | Christian Borntraeger | { |
733 | eca3ed03 | Christian Borntraeger | /* signal quiesce */
|
734 | f7575c96 | Andreas Färber | return cs->kvm_run->psw_addr == 0xfffUL; |
735 | eca3ed03 | Christian Borntraeger | } |
736 | eca3ed03 | Christian Borntraeger | |
737 | 1bc22652 | Andreas Färber | static int handle_intercept(S390CPU *cpu) |
738 | 0e60a699 | Alexander Graf | { |
739 | f7575c96 | Andreas Färber | CPUState *cs = CPU(cpu); |
740 | f7575c96 | Andreas Färber | struct kvm_run *run = cs->kvm_run;
|
741 | 0e60a699 | Alexander Graf | int icpt_code = run->s390_sieic.icptcode;
|
742 | 0e60a699 | Alexander Graf | int r = 0; |
743 | 0e60a699 | Alexander Graf | |
744 | e67137c6 | Peter Maydell | DPRINTF("intercept: 0x%x (at 0x%lx)\n", icpt_code,
|
745 | f7575c96 | Andreas Färber | (long)cs->kvm_run->psw_addr);
|
746 | 0e60a699 | Alexander Graf | switch (icpt_code) {
|
747 | 0e60a699 | Alexander Graf | case ICPT_INSTRUCTION:
|
748 | d2ee7746 | Thomas Huth | handle_instruction(cpu, run); |
749 | 0e60a699 | Alexander Graf | break;
|
750 | 0e60a699 | Alexander Graf | case ICPT_WAITPSW:
|
751 | 08eb8c85 | Christian Borntraeger | /* disabled wait, since enabled wait is handled in kernel */
|
752 | 08eb8c85 | Christian Borntraeger | if (s390_del_running_cpu(cpu) == 0) { |
753 | 08eb8c85 | Christian Borntraeger | if (is_special_wait_psw(cs)) {
|
754 | 08eb8c85 | Christian Borntraeger | qemu_system_shutdown_request(); |
755 | 08eb8c85 | Christian Borntraeger | } else {
|
756 | 08eb8c85 | Christian Borntraeger | QObject *data; |
757 | 08eb8c85 | Christian Borntraeger | |
758 | 08eb8c85 | Christian Borntraeger | data = qobject_from_jsonf("{ 'action': %s }", "pause"); |
759 | 08eb8c85 | Christian Borntraeger | monitor_protocol_event(QEVENT_GUEST_PANICKED, data); |
760 | 08eb8c85 | Christian Borntraeger | qobject_decref(data); |
761 | 08eb8c85 | Christian Borntraeger | vm_stop(RUN_STATE_GUEST_PANICKED); |
762 | 08eb8c85 | Christian Borntraeger | } |
763 | eca3ed03 | Christian Borntraeger | } |
764 | eca3ed03 | Christian Borntraeger | r = EXCP_HALTED; |
765 | eca3ed03 | Christian Borntraeger | break;
|
766 | 854e42f3 | Christian Borntraeger | case ICPT_CPU_STOP:
|
767 | 49e15878 | Andreas Färber | if (s390_del_running_cpu(cpu) == 0) { |
768 | 854e42f3 | Christian Borntraeger | qemu_system_shutdown_request(); |
769 | 854e42f3 | Christian Borntraeger | } |
770 | 854e42f3 | Christian Borntraeger | r = EXCP_HALTED; |
771 | 0e60a699 | Alexander Graf | break;
|
772 | 0e60a699 | Alexander Graf | case ICPT_SOFT_INTERCEPT:
|
773 | 0e60a699 | Alexander Graf | fprintf(stderr, "KVM unimplemented icpt SOFT\n");
|
774 | 0e60a699 | Alexander Graf | exit(1);
|
775 | 0e60a699 | Alexander Graf | break;
|
776 | 0e60a699 | Alexander Graf | case ICPT_IO:
|
777 | 0e60a699 | Alexander Graf | fprintf(stderr, "KVM unimplemented icpt IO\n");
|
778 | 0e60a699 | Alexander Graf | exit(1);
|
779 | 0e60a699 | Alexander Graf | break;
|
780 | 0e60a699 | Alexander Graf | default:
|
781 | 0e60a699 | Alexander Graf | fprintf(stderr, "Unknown intercept code: %d\n", icpt_code);
|
782 | 0e60a699 | Alexander Graf | exit(1);
|
783 | 0e60a699 | Alexander Graf | break;
|
784 | 0e60a699 | Alexander Graf | } |
785 | 0e60a699 | Alexander Graf | |
786 | 0e60a699 | Alexander Graf | return r;
|
787 | 0e60a699 | Alexander Graf | } |
788 | 0e60a699 | Alexander Graf | |
789 | 09b99878 | Cornelia Huck | static int handle_tsch(S390CPU *cpu) |
790 | 09b99878 | Cornelia Huck | { |
791 | 09b99878 | Cornelia Huck | CPUS390XState *env = &cpu->env; |
792 | 09b99878 | Cornelia Huck | CPUState *cs = CPU(cpu); |
793 | 09b99878 | Cornelia Huck | struct kvm_run *run = cs->kvm_run;
|
794 | 09b99878 | Cornelia Huck | int ret;
|
795 | 09b99878 | Cornelia Huck | |
796 | 44c68de0 | Dominik Dingel | cpu_synchronize_state(cs); |
797 | 3474b679 | Jason J. Herne | |
798 | 09b99878 | Cornelia Huck | ret = ioinst_handle_tsch(env, env->regs[1], run->s390_tsch.ipb);
|
799 | 09b99878 | Cornelia Huck | if (ret >= 0) { |
800 | 09b99878 | Cornelia Huck | /* Success; set condition code. */
|
801 | 09b99878 | Cornelia Huck | setcc(cpu, ret); |
802 | 09b99878 | Cornelia Huck | ret = 0;
|
803 | 09b99878 | Cornelia Huck | } else if (ret < -1) { |
804 | 09b99878 | Cornelia Huck | /*
|
805 | 09b99878 | Cornelia Huck | * Failure.
|
806 | 09b99878 | Cornelia Huck | * If an I/O interrupt had been dequeued, we have to reinject it.
|
807 | 09b99878 | Cornelia Huck | */
|
808 | 09b99878 | Cornelia Huck | if (run->s390_tsch.dequeued) {
|
809 | 09b99878 | Cornelia Huck | uint16_t subchannel_id = run->s390_tsch.subchannel_id; |
810 | 09b99878 | Cornelia Huck | uint16_t subchannel_nr = run->s390_tsch.subchannel_nr; |
811 | 09b99878 | Cornelia Huck | uint32_t io_int_parm = run->s390_tsch.io_int_parm; |
812 | 09b99878 | Cornelia Huck | uint32_t io_int_word = run->s390_tsch.io_int_word; |
813 | 09b99878 | Cornelia Huck | uint32_t type = ((subchannel_id & 0xff00) << 24) | |
814 | 09b99878 | Cornelia Huck | ((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16); |
815 | 09b99878 | Cornelia Huck | |
816 | 09b99878 | Cornelia Huck | kvm_s390_interrupt_internal(cpu, type, |
817 | 09b99878 | Cornelia Huck | ((uint32_t)subchannel_id << 16)
|
818 | 09b99878 | Cornelia Huck | | subchannel_nr, |
819 | 09b99878 | Cornelia Huck | ((uint64_t)io_int_parm << 32)
|
820 | 09b99878 | Cornelia Huck | | io_int_word, 1);
|
821 | 09b99878 | Cornelia Huck | } |
822 | 09b99878 | Cornelia Huck | ret = 0;
|
823 | 09b99878 | Cornelia Huck | } |
824 | 09b99878 | Cornelia Huck | return ret;
|
825 | 09b99878 | Cornelia Huck | } |
826 | 09b99878 | Cornelia Huck | |
827 | 20d695a9 | Andreas Färber | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
828 | 0e60a699 | Alexander Graf | { |
829 | 20d695a9 | Andreas Färber | S390CPU *cpu = S390_CPU(cs); |
830 | 0e60a699 | Alexander Graf | int ret = 0; |
831 | 0e60a699 | Alexander Graf | |
832 | 0e60a699 | Alexander Graf | switch (run->exit_reason) {
|
833 | 0e60a699 | Alexander Graf | case KVM_EXIT_S390_SIEIC:
|
834 | 1bc22652 | Andreas Färber | ret = handle_intercept(cpu); |
835 | 0e60a699 | Alexander Graf | break;
|
836 | 0e60a699 | Alexander Graf | case KVM_EXIT_S390_RESET:
|
837 | add142e0 | Jens Freimann | qemu_system_reset_request(); |
838 | 0e60a699 | Alexander Graf | break;
|
839 | 09b99878 | Cornelia Huck | case KVM_EXIT_S390_TSCH:
|
840 | 09b99878 | Cornelia Huck | ret = handle_tsch(cpu); |
841 | 09b99878 | Cornelia Huck | break;
|
842 | 0e60a699 | Alexander Graf | default:
|
843 | 0e60a699 | Alexander Graf | fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason);
|
844 | 0e60a699 | Alexander Graf | break;
|
845 | 0e60a699 | Alexander Graf | } |
846 | 0e60a699 | Alexander Graf | |
847 | bb4ea393 | Jan Kiszka | if (ret == 0) { |
848 | bb4ea393 | Jan Kiszka | ret = EXCP_INTERRUPT; |
849 | bb4ea393 | Jan Kiszka | } |
850 | 0e60a699 | Alexander Graf | return ret;
|
851 | 0e60a699 | Alexander Graf | } |
852 | 4513d923 | Gleb Natapov | |
853 | 20d695a9 | Andreas Färber | bool kvm_arch_stop_on_emulation_error(CPUState *cpu)
|
854 | 4513d923 | Gleb Natapov | { |
855 | 4513d923 | Gleb Natapov | return true; |
856 | 4513d923 | Gleb Natapov | } |
857 | a1b87fe0 | Jan Kiszka | |
858 | 20d695a9 | Andreas Färber | int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr) |
859 | a1b87fe0 | Jan Kiszka | { |
860 | a1b87fe0 | Jan Kiszka | return 1; |
861 | a1b87fe0 | Jan Kiszka | } |
862 | a1b87fe0 | Jan Kiszka | |
863 | a1b87fe0 | Jan Kiszka | int kvm_arch_on_sigbus(int code, void *addr) |
864 | a1b87fe0 | Jan Kiszka | { |
865 | a1b87fe0 | Jan Kiszka | return 1; |
866 | a1b87fe0 | Jan Kiszka | } |
867 | 09b99878 | Cornelia Huck | |
868 | 09b99878 | Cornelia Huck | void kvm_s390_io_interrupt(S390CPU *cpu, uint16_t subchannel_id,
|
869 | 09b99878 | Cornelia Huck | uint16_t subchannel_nr, uint32_t io_int_parm, |
870 | 09b99878 | Cornelia Huck | uint32_t io_int_word) |
871 | 09b99878 | Cornelia Huck | { |
872 | 09b99878 | Cornelia Huck | uint32_t type; |
873 | 09b99878 | Cornelia Huck | |
874 | 09b99878 | Cornelia Huck | type = ((subchannel_id & 0xff00) << 24) | |
875 | 09b99878 | Cornelia Huck | ((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16); |
876 | 09b99878 | Cornelia Huck | kvm_s390_interrupt_internal(cpu, type, |
877 | 09b99878 | Cornelia Huck | ((uint32_t)subchannel_id << 16) | subchannel_nr,
|
878 | 09b99878 | Cornelia Huck | ((uint64_t)io_int_parm << 32) | io_int_word, 1); |
879 | 09b99878 | Cornelia Huck | } |
880 | 09b99878 | Cornelia Huck | |
881 | 09b99878 | Cornelia Huck | void kvm_s390_crw_mchk(S390CPU *cpu)
|
882 | 09b99878 | Cornelia Huck | { |
883 | 09b99878 | Cornelia Huck | kvm_s390_interrupt_internal(cpu, KVM_S390_MCHK, 1 << 28, |
884 | 09b99878 | Cornelia Huck | 0x00400f1d40330000, 1); |
885 | 09b99878 | Cornelia Huck | } |
886 | 09b99878 | Cornelia Huck | |
887 | 09b99878 | Cornelia Huck | void kvm_s390_enable_css_support(S390CPU *cpu)
|
888 | 09b99878 | Cornelia Huck | { |
889 | 09b99878 | Cornelia Huck | struct kvm_enable_cap cap = {};
|
890 | 09b99878 | Cornelia Huck | int r;
|
891 | 09b99878 | Cornelia Huck | |
892 | 09b99878 | Cornelia Huck | /* Activate host kernel channel subsystem support. */
|
893 | 09b99878 | Cornelia Huck | cap.cap = KVM_CAP_S390_CSS_SUPPORT; |
894 | 09b99878 | Cornelia Huck | r = kvm_vcpu_ioctl(CPU(cpu), KVM_ENABLE_CAP, &cap); |
895 | 09b99878 | Cornelia Huck | assert(r == 0);
|
896 | 09b99878 | Cornelia Huck | } |
897 | 48475e14 | Alexey Kardashevskiy | |
898 | 48475e14 | Alexey Kardashevskiy | void kvm_arch_init_irq_routing(KVMState *s)
|
899 | 48475e14 | Alexey Kardashevskiy | { |
900 | 48475e14 | Alexey Kardashevskiy | } |
901 | b4436a0b | Cornelia Huck | |
902 | cc3ac9c4 | Cornelia Huck | int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch,
|
903 | cc3ac9c4 | Cornelia Huck | int vq, bool assign) |
904 | b4436a0b | Cornelia Huck | { |
905 | b4436a0b | Cornelia Huck | struct kvm_ioeventfd kick = {
|
906 | b4436a0b | Cornelia Huck | .flags = KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY | |
907 | b4436a0b | Cornelia Huck | KVM_IOEVENTFD_FLAG_DATAMATCH, |
908 | cc3ac9c4 | Cornelia Huck | .fd = event_notifier_get_fd(notifier), |
909 | b4436a0b | Cornelia Huck | .datamatch = vq, |
910 | b4436a0b | Cornelia Huck | .addr = sch, |
911 | b4436a0b | Cornelia Huck | .len = 8,
|
912 | b4436a0b | Cornelia Huck | }; |
913 | b4436a0b | Cornelia Huck | if (!kvm_check_extension(kvm_state, KVM_CAP_IOEVENTFD)) {
|
914 | b4436a0b | Cornelia Huck | return -ENOSYS;
|
915 | b4436a0b | Cornelia Huck | } |
916 | b4436a0b | Cornelia Huck | if (!assign) {
|
917 | b4436a0b | Cornelia Huck | kick.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN; |
918 | b4436a0b | Cornelia Huck | } |
919 | b4436a0b | Cornelia Huck | return kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD, &kick);
|
920 | b4436a0b | Cornelia Huck | } |