]>
Commit | Line | Data |
---|---|---|
0e60a699 AG |
1 | /* |
2 | * QEMU S390x KVM implementation | |
3 | * | |
4 | * Copyright (c) 2009 Alexander Graf <agraf@suse.de> | |
ccb084d3 | 5 | * Copyright IBM Corp. 2012 |
0e60a699 AG |
6 | * |
7 | * This library is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2 of the License, or (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
ccb084d3 CB |
17 | * Contributions after 2012-10-29 are licensed under the terms of the |
18 | * GNU GPL, version 2 or (at your option) any later version. | |
19 | * | |
20 | * You should have received a copy of the GNU (Lesser) General Public | |
0e60a699 AG |
21 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
22 | */ | |
23 | ||
24 | #include <sys/types.h> | |
25 | #include <sys/ioctl.h> | |
26 | #include <sys/mman.h> | |
27 | ||
28 | #include <linux/kvm.h> | |
29 | #include <asm/ptrace.h> | |
30 | ||
31 | #include "qemu-common.h" | |
1de7afc9 | 32 | #include "qemu/timer.h" |
9c17d615 PB |
33 | #include "sysemu/sysemu.h" |
34 | #include "sysemu/kvm.h" | |
4cb88c3c | 35 | #include "hw/hw.h" |
0e60a699 | 36 | #include "cpu.h" |
9c17d615 | 37 | #include "sysemu/device_tree.h" |
08eb8c85 CB |
38 | #include "qapi/qmp/qjson.h" |
39 | #include "monitor/monitor.h" | |
770a6379 | 40 | #include "exec/gdbstub.h" |
18ff9494 | 41 | #include "exec/address-spaces.h" |
860643bc | 42 | #include "trace.h" |
3a449690 | 43 | #include "qapi-event.h" |
863f6f52 | 44 | #include "hw/s390x/s390-pci-inst.h" |
9e03a040 | 45 | #include "hw/s390x/s390-pci-bus.h" |
e91e972c | 46 | #include "hw/s390x/ipl.h" |
f07177a5 | 47 | #include "hw/s390x/ebcdic.h" |
4c663752 | 48 | #include "exec/memattrs.h" |
0e60a699 AG |
49 | |
50 | /* #define DEBUG_KVM */ | |
51 | ||
52 | #ifdef DEBUG_KVM | |
e67137c6 | 53 | #define DPRINTF(fmt, ...) \ |
0e60a699 AG |
54 | do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0) |
55 | #else | |
e67137c6 | 56 | #define DPRINTF(fmt, ...) \ |
0e60a699 AG |
57 | do { } while (0) |
58 | #endif | |
59 | ||
2b147555 DD |
60 | #define kvm_vm_check_mem_attr(s, attr) \ |
61 | kvm_vm_check_attr(s, KVM_S390_VM_MEM_CTRL, attr) | |
62 | ||
0e60a699 AG |
63 | #define IPA0_DIAG 0x8300 |
64 | #define IPA0_SIGP 0xae00 | |
09b99878 CH |
65 | #define IPA0_B2 0xb200 |
66 | #define IPA0_B9 0xb900 | |
67 | #define IPA0_EB 0xeb00 | |
863f6f52 | 68 | #define IPA0_E3 0xe300 |
0e60a699 | 69 | |
1eecf41b FB |
70 | #define PRIV_B2_SCLP_CALL 0x20 |
71 | #define PRIV_B2_CSCH 0x30 | |
72 | #define PRIV_B2_HSCH 0x31 | |
73 | #define PRIV_B2_MSCH 0x32 | |
74 | #define PRIV_B2_SSCH 0x33 | |
75 | #define PRIV_B2_STSCH 0x34 | |
76 | #define PRIV_B2_TSCH 0x35 | |
77 | #define PRIV_B2_TPI 0x36 | |
78 | #define PRIV_B2_SAL 0x37 | |
79 | #define PRIV_B2_RSCH 0x38 | |
80 | #define PRIV_B2_STCRW 0x39 | |
81 | #define PRIV_B2_STCPS 0x3a | |
82 | #define PRIV_B2_RCHP 0x3b | |
83 | #define PRIV_B2_SCHM 0x3c | |
84 | #define PRIV_B2_CHSC 0x5f | |
85 | #define PRIV_B2_SIGA 0x74 | |
86 | #define PRIV_B2_XSCH 0x76 | |
87 | ||
88 | #define PRIV_EB_SQBS 0x8a | |
863f6f52 FB |
89 | #define PRIV_EB_PCISTB 0xd0 |
90 | #define PRIV_EB_SIC 0xd1 | |
1eecf41b FB |
91 | |
92 | #define PRIV_B9_EQBS 0x9c | |
863f6f52 FB |
93 | #define PRIV_B9_CLP 0xa0 |
94 | #define PRIV_B9_PCISTG 0xd0 | |
95 | #define PRIV_B9_PCILG 0xd2 | |
96 | #define PRIV_B9_RPCIT 0xd3 | |
97 | ||
98 | #define PRIV_E3_MPCIFC 0xd0 | |
99 | #define PRIV_E3_STPCIFC 0xd4 | |
1eecf41b | 100 | |
268846ba | 101 | #define DIAG_IPL 0x308 |
0e60a699 AG |
102 | #define DIAG_KVM_HYPERCALL 0x500 |
103 | #define DIAG_KVM_BREAKPOINT 0x501 | |
104 | ||
0e60a699 | 105 | #define ICPT_INSTRUCTION 0x04 |
6449a41a | 106 | #define ICPT_PROGRAM 0x08 |
a2689242 | 107 | #define ICPT_EXT_INT 0x14 |
0e60a699 AG |
108 | #define ICPT_WAITPSW 0x1c |
109 | #define ICPT_SOFT_INTERCEPT 0x24 | |
110 | #define ICPT_CPU_STOP 0x28 | |
111 | #define ICPT_IO 0x40 | |
112 | ||
3cda44f7 JF |
113 | #define NR_LOCAL_IRQS 32 |
114 | /* | |
115 | * Needs to be big enough to contain max_cpus emergency signals | |
116 | * and in addition NR_LOCAL_IRQS interrupts | |
117 | */ | |
118 | #define VCPU_IRQ_BUF_SIZE (sizeof(struct kvm_s390_irq) * \ | |
119 | (max_cpus + NR_LOCAL_IRQS)) | |
120 | ||
770a6379 DH |
121 | static CPUWatchpoint hw_watchpoint; |
122 | /* | |
123 | * We don't use a list because this structure is also used to transmit the | |
124 | * hardware breakpoints to the kernel. | |
125 | */ | |
126 | static struct kvm_hw_breakpoint *hw_breakpoints; | |
127 | static int nb_hw_breakpoints; | |
128 | ||
94a8d39a JK |
129 | const KVMCapabilityInfo kvm_arch_required_capabilities[] = { |
130 | KVM_CAP_LAST_INFO | |
131 | }; | |
132 | ||
5b08b344 | 133 | static int cap_sync_regs; |
819bd309 | 134 | static int cap_async_pf; |
a9bcd1b8 | 135 | static int cap_mem_op; |
1191c949 | 136 | static int cap_s390_irq; |
5b08b344 | 137 | |
dc622deb | 138 | static void *legacy_s390_alloc(size_t size, uint64_t *align); |
91138037 | 139 | |
a310b283 DD |
140 | static int kvm_s390_query_mem_limit(KVMState *s, uint64_t *memory_limit) |
141 | { | |
142 | struct kvm_device_attr attr = { | |
143 | .group = KVM_S390_VM_MEM_CTRL, | |
144 | .attr = KVM_S390_VM_MEM_LIMIT_SIZE, | |
145 | .addr = (uint64_t) memory_limit, | |
146 | }; | |
147 | ||
148 | return kvm_vm_ioctl(s, KVM_GET_DEVICE_ATTR, &attr); | |
149 | } | |
150 | ||
151 | int kvm_s390_set_mem_limit(KVMState *s, uint64_t new_limit, uint64_t *hw_limit) | |
152 | { | |
153 | int rc; | |
154 | ||
155 | struct kvm_device_attr attr = { | |
156 | .group = KVM_S390_VM_MEM_CTRL, | |
157 | .attr = KVM_S390_VM_MEM_LIMIT_SIZE, | |
158 | .addr = (uint64_t) &new_limit, | |
159 | }; | |
160 | ||
2b147555 | 161 | if (!kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_LIMIT_SIZE)) { |
a310b283 DD |
162 | return 0; |
163 | } | |
164 | ||
165 | rc = kvm_s390_query_mem_limit(s, hw_limit); | |
166 | if (rc) { | |
167 | return rc; | |
168 | } else if (*hw_limit < new_limit) { | |
169 | return -E2BIG; | |
170 | } | |
171 | ||
172 | return kvm_vm_ioctl(s, KVM_SET_DEVICE_ATTR, &attr); | |
173 | } | |
174 | ||
4cb88c3c DD |
175 | void kvm_s390_clear_cmma_callback(void *opaque) |
176 | { | |
177 | int rc; | |
178 | KVMState *s = opaque; | |
179 | struct kvm_device_attr attr = { | |
180 | .group = KVM_S390_VM_MEM_CTRL, | |
181 | .attr = KVM_S390_VM_MEM_CLR_CMMA, | |
182 | }; | |
183 | ||
184 | rc = kvm_vm_ioctl(s, KVM_SET_DEVICE_ATTR, &attr); | |
185 | trace_kvm_clear_cmma(rc); | |
186 | } | |
187 | ||
188 | static void kvm_s390_enable_cmma(KVMState *s) | |
189 | { | |
190 | int rc; | |
191 | struct kvm_device_attr attr = { | |
192 | .group = KVM_S390_VM_MEM_CTRL, | |
193 | .attr = KVM_S390_VM_MEM_ENABLE_CMMA, | |
194 | }; | |
195 | ||
2b147555 DD |
196 | if (!kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_ENABLE_CMMA) || |
197 | !kvm_vm_check_mem_attr(s, KVM_S390_VM_MEM_CLR_CMMA)) { | |
4cb88c3c DD |
198 | return; |
199 | } | |
200 | ||
201 | rc = kvm_vm_ioctl(s, KVM_SET_DEVICE_ATTR, &attr); | |
202 | if (!rc) { | |
203 | qemu_register_reset(kvm_s390_clear_cmma_callback, s); | |
204 | } | |
205 | trace_kvm_enable_cmma(rc); | |
206 | } | |
207 | ||
2eb1cd07 TK |
208 | static void kvm_s390_set_attr(uint64_t attr) |
209 | { | |
210 | struct kvm_device_attr attribute = { | |
211 | .group = KVM_S390_VM_CRYPTO, | |
212 | .attr = attr, | |
213 | }; | |
214 | ||
215 | int ret = kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attribute); | |
216 | ||
217 | if (ret) { | |
218 | error_report("Failed to set crypto device attribute %lu: %s", | |
219 | attr, strerror(-ret)); | |
220 | } | |
221 | } | |
222 | ||
223 | static void kvm_s390_init_aes_kw(void) | |
224 | { | |
225 | uint64_t attr = KVM_S390_VM_CRYPTO_DISABLE_AES_KW; | |
226 | ||
227 | if (object_property_get_bool(OBJECT(qdev_get_machine()), "aes-key-wrap", | |
228 | NULL)) { | |
229 | attr = KVM_S390_VM_CRYPTO_ENABLE_AES_KW; | |
230 | } | |
231 | ||
232 | if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) { | |
233 | kvm_s390_set_attr(attr); | |
234 | } | |
235 | } | |
236 | ||
237 | static void kvm_s390_init_dea_kw(void) | |
238 | { | |
239 | uint64_t attr = KVM_S390_VM_CRYPTO_DISABLE_DEA_KW; | |
240 | ||
241 | if (object_property_get_bool(OBJECT(qdev_get_machine()), "dea-key-wrap", | |
242 | NULL)) { | |
243 | attr = KVM_S390_VM_CRYPTO_ENABLE_DEA_KW; | |
244 | } | |
245 | ||
246 | if (kvm_vm_check_attr(kvm_state, KVM_S390_VM_CRYPTO, attr)) { | |
247 | kvm_s390_set_attr(attr); | |
248 | } | |
249 | } | |
250 | ||
251 | static void kvm_s390_init_crypto(void) | |
252 | { | |
253 | kvm_s390_init_aes_kw(); | |
254 | kvm_s390_init_dea_kw(); | |
255 | } | |
256 | ||
b16565b3 | 257 | int kvm_arch_init(MachineState *ms, KVMState *s) |
0e60a699 | 258 | { |
5b08b344 | 259 | cap_sync_regs = kvm_check_extension(s, KVM_CAP_SYNC_REGS); |
819bd309 | 260 | cap_async_pf = kvm_check_extension(s, KVM_CAP_ASYNC_PF); |
a9bcd1b8 | 261 | cap_mem_op = kvm_check_extension(s, KVM_CAP_S390_MEM_OP); |
1191c949 | 262 | cap_s390_irq = kvm_check_extension(s, KVM_CAP_S390_INJECT_IRQ); |
4cb88c3c | 263 | |
2b147555 | 264 | kvm_s390_enable_cmma(s); |
4cb88c3c | 265 | |
91138037 MA |
266 | if (!kvm_check_extension(s, KVM_CAP_S390_GMAP) |
267 | || !kvm_check_extension(s, KVM_CAP_S390_COW)) { | |
268 | phys_mem_set_alloc(legacy_s390_alloc); | |
269 | } | |
f16d3f58 DH |
270 | |
271 | kvm_vm_enable_cap(s, KVM_CAP_S390_USER_SIGP, 0); | |
f07177a5 | 272 | kvm_vm_enable_cap(s, KVM_CAP_S390_USER_STSI, 0); |
f16d3f58 | 273 | |
0e60a699 AG |
274 | return 0; |
275 | } | |
276 | ||
b164e48e EH |
277 | unsigned long kvm_arch_vcpu_id(CPUState *cpu) |
278 | { | |
279 | return cpu->cpu_index; | |
280 | } | |
281 | ||
c9e659c9 | 282 | int kvm_arch_init_vcpu(CPUState *cs) |
0e60a699 | 283 | { |
c9e659c9 DH |
284 | S390CPU *cpu = S390_CPU(cs); |
285 | kvm_s390_set_cpu_state(cpu, cpu->env.cpu_state); | |
3cda44f7 | 286 | cpu->irqstate = g_malloc0(VCPU_IRQ_BUF_SIZE); |
1c9d2a1d | 287 | return 0; |
0e60a699 AG |
288 | } |
289 | ||
50a2c6e5 | 290 | void kvm_s390_reset_vcpu(S390CPU *cpu) |
0e60a699 | 291 | { |
50a2c6e5 PB |
292 | CPUState *cs = CPU(cpu); |
293 | ||
419831d7 AG |
294 | /* The initial reset call is needed here to reset in-kernel |
295 | * vcpu data that we can't access directly from QEMU | |
296 | * (i.e. with older kernels which don't support sync_regs/ONE_REG). | |
297 | * Before this ioctl cpu_synchronize_state() is called in common kvm | |
298 | * code (kvm-all) */ | |
50a2c6e5 | 299 | if (kvm_vcpu_ioctl(cs, KVM_S390_INITIAL_RESET, NULL)) { |
81b07353 | 300 | error_report("Initial CPU reset failed on CPU %i", cs->cpu_index); |
70bada03 | 301 | } |
2eb1cd07 TK |
302 | |
303 | kvm_s390_init_crypto(); | |
0e60a699 AG |
304 | } |
305 | ||
fdb78ec0 DH |
306 | static int can_sync_regs(CPUState *cs, int regs) |
307 | { | |
308 | return cap_sync_regs && (cs->kvm_run->kvm_valid_regs & regs) == regs; | |
309 | } | |
310 | ||
20d695a9 | 311 | int kvm_arch_put_registers(CPUState *cs, int level) |
0e60a699 | 312 | { |
20d695a9 AF |
313 | S390CPU *cpu = S390_CPU(cs); |
314 | CPUS390XState *env = &cpu->env; | |
5b08b344 | 315 | struct kvm_sregs sregs; |
0e60a699 | 316 | struct kvm_regs regs; |
e6eef7c2 | 317 | struct kvm_fpu fpu = {}; |
860643bc | 318 | int r; |
0e60a699 AG |
319 | int i; |
320 | ||
5b08b344 | 321 | /* always save the PSW and the GPRS*/ |
f7575c96 AF |
322 | cs->kvm_run->psw_addr = env->psw.addr; |
323 | cs->kvm_run->psw_mask = env->psw.mask; | |
0e60a699 | 324 | |
fdb78ec0 | 325 | if (can_sync_regs(cs, KVM_SYNC_GPRS)) { |
5b08b344 | 326 | for (i = 0; i < 16; i++) { |
f7575c96 AF |
327 | cs->kvm_run->s.regs.gprs[i] = env->regs[i]; |
328 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_GPRS; | |
5b08b344 CB |
329 | } |
330 | } else { | |
331 | for (i = 0; i < 16; i++) { | |
332 | regs.gprs[i] = env->regs[i]; | |
333 | } | |
860643bc CB |
334 | r = kvm_vcpu_ioctl(cs, KVM_SET_REGS, ®s); |
335 | if (r < 0) { | |
336 | return r; | |
5b08b344 | 337 | } |
0e60a699 AG |
338 | } |
339 | ||
85ad6230 JH |
340 | /* Floating point */ |
341 | for (i = 0; i < 16; i++) { | |
342 | fpu.fprs[i] = env->fregs[i].ll; | |
343 | } | |
344 | fpu.fpc = env->fpc; | |
345 | ||
346 | r = kvm_vcpu_ioctl(cs, KVM_SET_FPU, &fpu); | |
347 | if (r < 0) { | |
348 | return r; | |
349 | } | |
350 | ||
44c68de0 DD |
351 | /* Do we need to save more than that? */ |
352 | if (level == KVM_PUT_RUNTIME_STATE) { | |
353 | return 0; | |
354 | } | |
420840e5 | 355 | |
59ac1532 DH |
356 | if (can_sync_regs(cs, KVM_SYNC_ARCH0)) { |
357 | cs->kvm_run->s.regs.cputm = env->cputm; | |
358 | cs->kvm_run->s.regs.ckc = env->ckc; | |
359 | cs->kvm_run->s.regs.todpr = env->todpr; | |
360 | cs->kvm_run->s.regs.gbea = env->gbea; | |
361 | cs->kvm_run->s.regs.pp = env->pp; | |
362 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ARCH0; | |
363 | } else { | |
364 | /* | |
365 | * These ONE_REGS are not protected by a capability. As they are only | |
366 | * necessary for migration we just trace a possible error, but don't | |
367 | * return with an error return code. | |
368 | */ | |
369 | kvm_set_one_reg(cs, KVM_REG_S390_CPU_TIMER, &env->cputm); | |
370 | kvm_set_one_reg(cs, KVM_REG_S390_CLOCK_COMP, &env->ckc); | |
371 | kvm_set_one_reg(cs, KVM_REG_S390_TODPR, &env->todpr); | |
372 | kvm_set_one_reg(cs, KVM_REG_S390_GBEA, &env->gbea); | |
373 | kvm_set_one_reg(cs, KVM_REG_S390_PP, &env->pp); | |
374 | } | |
375 | ||
376 | /* pfault parameters */ | |
377 | if (can_sync_regs(cs, KVM_SYNC_PFAULT)) { | |
378 | cs->kvm_run->s.regs.pft = env->pfault_token; | |
379 | cs->kvm_run->s.regs.pfs = env->pfault_select; | |
380 | cs->kvm_run->s.regs.pfc = env->pfault_compare; | |
381 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PFAULT; | |
382 | } else if (cap_async_pf) { | |
860643bc CB |
383 | r = kvm_set_one_reg(cs, KVM_REG_S390_PFTOKEN, &env->pfault_token); |
384 | if (r < 0) { | |
385 | return r; | |
819bd309 | 386 | } |
860643bc CB |
387 | r = kvm_set_one_reg(cs, KVM_REG_S390_PFCOMPARE, &env->pfault_compare); |
388 | if (r < 0) { | |
389 | return r; | |
819bd309 | 390 | } |
860643bc CB |
391 | r = kvm_set_one_reg(cs, KVM_REG_S390_PFSELECT, &env->pfault_select); |
392 | if (r < 0) { | |
393 | return r; | |
819bd309 DD |
394 | } |
395 | } | |
396 | ||
fdb78ec0 DH |
397 | /* access registers and control registers*/ |
398 | if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) { | |
5b08b344 | 399 | for (i = 0; i < 16; i++) { |
f7575c96 AF |
400 | cs->kvm_run->s.regs.acrs[i] = env->aregs[i]; |
401 | cs->kvm_run->s.regs.crs[i] = env->cregs[i]; | |
5b08b344 | 402 | } |
f7575c96 AF |
403 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_ACRS; |
404 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_CRS; | |
5b08b344 CB |
405 | } else { |
406 | for (i = 0; i < 16; i++) { | |
407 | sregs.acrs[i] = env->aregs[i]; | |
408 | sregs.crs[i] = env->cregs[i]; | |
409 | } | |
860643bc CB |
410 | r = kvm_vcpu_ioctl(cs, KVM_SET_SREGS, &sregs); |
411 | if (r < 0) { | |
412 | return r; | |
5b08b344 CB |
413 | } |
414 | } | |
0e60a699 | 415 | |
5b08b344 | 416 | /* Finally the prefix */ |
fdb78ec0 | 417 | if (can_sync_regs(cs, KVM_SYNC_PREFIX)) { |
f7575c96 AF |
418 | cs->kvm_run->s.regs.prefix = env->psa; |
419 | cs->kvm_run->kvm_dirty_regs |= KVM_SYNC_PREFIX; | |
5b08b344 CB |
420 | } else { |
421 | /* prefix is only supported via sync regs */ | |
422 | } | |
423 | return 0; | |
0e60a699 AG |
424 | } |
425 | ||
20d695a9 | 426 | int kvm_arch_get_registers(CPUState *cs) |
420840e5 JH |
427 | { |
428 | S390CPU *cpu = S390_CPU(cs); | |
429 | CPUS390XState *env = &cpu->env; | |
5b08b344 | 430 | struct kvm_sregs sregs; |
0e60a699 | 431 | struct kvm_regs regs; |
85ad6230 | 432 | struct kvm_fpu fpu; |
44c68de0 | 433 | int i, r; |
420840e5 | 434 | |
5b08b344 | 435 | /* get the PSW */ |
f7575c96 AF |
436 | env->psw.addr = cs->kvm_run->psw_addr; |
437 | env->psw.mask = cs->kvm_run->psw_mask; | |
5b08b344 CB |
438 | |
439 | /* the GPRS */ | |
fdb78ec0 | 440 | if (can_sync_regs(cs, KVM_SYNC_GPRS)) { |
5b08b344 | 441 | for (i = 0; i < 16; i++) { |
f7575c96 | 442 | env->regs[i] = cs->kvm_run->s.regs.gprs[i]; |
5b08b344 CB |
443 | } |
444 | } else { | |
44c68de0 DD |
445 | r = kvm_vcpu_ioctl(cs, KVM_GET_REGS, ®s); |
446 | if (r < 0) { | |
447 | return r; | |
5b08b344 CB |
448 | } |
449 | for (i = 0; i < 16; i++) { | |
450 | env->regs[i] = regs.gprs[i]; | |
451 | } | |
0e60a699 AG |
452 | } |
453 | ||
5b08b344 | 454 | /* The ACRS and CRS */ |
fdb78ec0 | 455 | if (can_sync_regs(cs, KVM_SYNC_ACRS | KVM_SYNC_CRS)) { |
5b08b344 | 456 | for (i = 0; i < 16; i++) { |
f7575c96 AF |
457 | env->aregs[i] = cs->kvm_run->s.regs.acrs[i]; |
458 | env->cregs[i] = cs->kvm_run->s.regs.crs[i]; | |
5b08b344 CB |
459 | } |
460 | } else { | |
44c68de0 DD |
461 | r = kvm_vcpu_ioctl(cs, KVM_GET_SREGS, &sregs); |
462 | if (r < 0) { | |
463 | return r; | |
5b08b344 CB |
464 | } |
465 | for (i = 0; i < 16; i++) { | |
466 | env->aregs[i] = sregs.acrs[i]; | |
467 | env->cregs[i] = sregs.crs[i]; | |
468 | } | |
0e60a699 AG |
469 | } |
470 | ||
85ad6230 JH |
471 | /* Floating point */ |
472 | r = kvm_vcpu_ioctl(cs, KVM_GET_FPU, &fpu); | |
473 | if (r < 0) { | |
474 | return r; | |
475 | } | |
476 | for (i = 0; i < 16; i++) { | |
477 | env->fregs[i].ll = fpu.fprs[i]; | |
478 | } | |
479 | env->fpc = fpu.fpc; | |
480 | ||
44c68de0 | 481 | /* The prefix */ |
fdb78ec0 | 482 | if (can_sync_regs(cs, KVM_SYNC_PREFIX)) { |
f7575c96 | 483 | env->psa = cs->kvm_run->s.regs.prefix; |
5b08b344 | 484 | } |
0e60a699 | 485 | |
59ac1532 DH |
486 | if (can_sync_regs(cs, KVM_SYNC_ARCH0)) { |
487 | env->cputm = cs->kvm_run->s.regs.cputm; | |
488 | env->ckc = cs->kvm_run->s.regs.ckc; | |
489 | env->todpr = cs->kvm_run->s.regs.todpr; | |
490 | env->gbea = cs->kvm_run->s.regs.gbea; | |
491 | env->pp = cs->kvm_run->s.regs.pp; | |
492 | } else { | |
493 | /* | |
494 | * These ONE_REGS are not protected by a capability. As they are only | |
495 | * necessary for migration we just trace a possible error, but don't | |
496 | * return with an error return code. | |
497 | */ | |
498 | kvm_get_one_reg(cs, KVM_REG_S390_CPU_TIMER, &env->cputm); | |
499 | kvm_get_one_reg(cs, KVM_REG_S390_CLOCK_COMP, &env->ckc); | |
500 | kvm_get_one_reg(cs, KVM_REG_S390_TODPR, &env->todpr); | |
501 | kvm_get_one_reg(cs, KVM_REG_S390_GBEA, &env->gbea); | |
502 | kvm_get_one_reg(cs, KVM_REG_S390_PP, &env->pp); | |
503 | } | |
504 | ||
505 | /* pfault parameters */ | |
506 | if (can_sync_regs(cs, KVM_SYNC_PFAULT)) { | |
507 | env->pfault_token = cs->kvm_run->s.regs.pft; | |
508 | env->pfault_select = cs->kvm_run->s.regs.pfs; | |
509 | env->pfault_compare = cs->kvm_run->s.regs.pfc; | |
510 | } else if (cap_async_pf) { | |
860643bc | 511 | r = kvm_get_one_reg(cs, KVM_REG_S390_PFTOKEN, &env->pfault_token); |
819bd309 DD |
512 | if (r < 0) { |
513 | return r; | |
514 | } | |
860643bc | 515 | r = kvm_get_one_reg(cs, KVM_REG_S390_PFCOMPARE, &env->pfault_compare); |
819bd309 DD |
516 | if (r < 0) { |
517 | return r; | |
518 | } | |
860643bc | 519 | r = kvm_get_one_reg(cs, KVM_REG_S390_PFSELECT, &env->pfault_select); |
819bd309 DD |
520 | if (r < 0) { |
521 | return r; | |
522 | } | |
523 | } | |
524 | ||
0e60a699 AG |
525 | return 0; |
526 | } | |
527 | ||
3f9e59bb JH |
528 | int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_low) |
529 | { | |
530 | int r; | |
531 | struct kvm_device_attr attr = { | |
532 | .group = KVM_S390_VM_TOD, | |
533 | .attr = KVM_S390_VM_TOD_LOW, | |
534 | .addr = (uint64_t)tod_low, | |
535 | }; | |
536 | ||
537 | r = kvm_vm_ioctl(kvm_state, KVM_GET_DEVICE_ATTR, &attr); | |
538 | if (r) { | |
539 | return r; | |
540 | } | |
541 | ||
542 | attr.attr = KVM_S390_VM_TOD_HIGH; | |
543 | attr.addr = (uint64_t)tod_high; | |
544 | return kvm_vm_ioctl(kvm_state, KVM_GET_DEVICE_ATTR, &attr); | |
545 | } | |
546 | ||
547 | int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_low) | |
548 | { | |
549 | int r; | |
550 | ||
551 | struct kvm_device_attr attr = { | |
552 | .group = KVM_S390_VM_TOD, | |
553 | .attr = KVM_S390_VM_TOD_LOW, | |
554 | .addr = (uint64_t)tod_low, | |
555 | }; | |
556 | ||
557 | r = kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr); | |
558 | if (r) { | |
559 | return r; | |
560 | } | |
561 | ||
562 | attr.attr = KVM_S390_VM_TOD_HIGH; | |
563 | attr.addr = (uint64_t)tod_high; | |
564 | return kvm_vm_ioctl(kvm_state, KVM_SET_DEVICE_ATTR, &attr); | |
565 | } | |
566 | ||
a9bcd1b8 TH |
567 | /** |
568 | * kvm_s390_mem_op: | |
569 | * @addr: the logical start address in guest memory | |
6cb1e49d | 570 | * @ar: the access register number |
a9bcd1b8 TH |
571 | * @hostbuf: buffer in host memory. NULL = do only checks w/o copying |
572 | * @len: length that should be transfered | |
573 | * @is_write: true = write, false = read | |
574 | * Returns: 0 on success, non-zero if an exception or error occured | |
575 | * | |
576 | * Use KVM ioctl to read/write from/to guest memory. An access exception | |
577 | * is injected into the vCPU in case of translation errors. | |
578 | */ | |
6cb1e49d AY |
579 | int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, uint8_t ar, void *hostbuf, |
580 | int len, bool is_write) | |
a9bcd1b8 TH |
581 | { |
582 | struct kvm_s390_mem_op mem_op = { | |
583 | .gaddr = addr, | |
584 | .flags = KVM_S390_MEMOP_F_INJECT_EXCEPTION, | |
585 | .size = len, | |
586 | .op = is_write ? KVM_S390_MEMOP_LOGICAL_WRITE | |
587 | : KVM_S390_MEMOP_LOGICAL_READ, | |
588 | .buf = (uint64_t)hostbuf, | |
6cb1e49d | 589 | .ar = ar, |
a9bcd1b8 TH |
590 | }; |
591 | int ret; | |
592 | ||
593 | if (!cap_mem_op) { | |
594 | return -ENOSYS; | |
595 | } | |
596 | if (!hostbuf) { | |
597 | mem_op.flags |= KVM_S390_MEMOP_F_CHECK_ONLY; | |
598 | } | |
599 | ||
600 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_S390_MEM_OP, &mem_op); | |
601 | if (ret < 0) { | |
602 | error_printf("KVM_S390_MEM_OP failed: %s\n", strerror(-ret)); | |
603 | } | |
604 | return ret; | |
605 | } | |
606 | ||
fdec9918 CB |
607 | /* |
608 | * Legacy layout for s390: | |
609 | * Older S390 KVM requires the topmost vma of the RAM to be | |
610 | * smaller than an system defined value, which is at least 256GB. | |
611 | * Larger systems have larger values. We put the guest between | |
612 | * the end of data segment (system break) and this value. We | |
613 | * use 32GB as a base to have enough room for the system break | |
614 | * to grow. We also have to use MAP parameters that avoid | |
615 | * read-only mapping of guest pages. | |
616 | */ | |
dc622deb | 617 | static void *legacy_s390_alloc(size_t size, uint64_t *align) |
fdec9918 CB |
618 | { |
619 | void *mem; | |
620 | ||
621 | mem = mmap((void *) 0x800000000ULL, size, | |
622 | PROT_EXEC|PROT_READ|PROT_WRITE, | |
623 | MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0); | |
39228250 | 624 | return mem == MAP_FAILED ? NULL : mem; |
fdec9918 CB |
625 | } |
626 | ||
8e4e86af DH |
627 | /* DIAG 501 is used for sw breakpoints */ |
628 | static const uint8_t diag_501[] = {0x83, 0x24, 0x05, 0x01}; | |
629 | ||
20d695a9 | 630 | int kvm_arch_insert_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
0e60a699 | 631 | { |
0e60a699 | 632 | |
8e4e86af DH |
633 | if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, |
634 | sizeof(diag_501), 0) || | |
635 | cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)diag_501, | |
636 | sizeof(diag_501), 1)) { | |
0e60a699 AG |
637 | return -EINVAL; |
638 | } | |
639 | return 0; | |
640 | } | |
641 | ||
20d695a9 | 642 | int kvm_arch_remove_sw_breakpoint(CPUState *cs, struct kvm_sw_breakpoint *bp) |
0e60a699 | 643 | { |
8e4e86af | 644 | uint8_t t[sizeof(diag_501)]; |
0e60a699 | 645 | |
8e4e86af | 646 | if (cpu_memory_rw_debug(cs, bp->pc, t, sizeof(diag_501), 0)) { |
0e60a699 | 647 | return -EINVAL; |
8e4e86af | 648 | } else if (memcmp(t, diag_501, sizeof(diag_501))) { |
0e60a699 | 649 | return -EINVAL; |
8e4e86af DH |
650 | } else if (cpu_memory_rw_debug(cs, bp->pc, (uint8_t *)&bp->saved_insn, |
651 | sizeof(diag_501), 1)) { | |
0e60a699 AG |
652 | return -EINVAL; |
653 | } | |
654 | ||
655 | return 0; | |
656 | } | |
657 | ||
770a6379 DH |
658 | static struct kvm_hw_breakpoint *find_hw_breakpoint(target_ulong addr, |
659 | int len, int type) | |
660 | { | |
661 | int n; | |
662 | ||
663 | for (n = 0; n < nb_hw_breakpoints; n++) { | |
664 | if (hw_breakpoints[n].addr == addr && hw_breakpoints[n].type == type && | |
665 | (hw_breakpoints[n].len == len || len == -1)) { | |
666 | return &hw_breakpoints[n]; | |
667 | } | |
668 | } | |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | static int insert_hw_breakpoint(target_ulong addr, int len, int type) | |
674 | { | |
675 | int size; | |
676 | ||
677 | if (find_hw_breakpoint(addr, len, type)) { | |
678 | return -EEXIST; | |
679 | } | |
680 | ||
681 | size = (nb_hw_breakpoints + 1) * sizeof(struct kvm_hw_breakpoint); | |
682 | ||
683 | if (!hw_breakpoints) { | |
684 | nb_hw_breakpoints = 0; | |
685 | hw_breakpoints = (struct kvm_hw_breakpoint *)g_try_malloc(size); | |
686 | } else { | |
687 | hw_breakpoints = | |
688 | (struct kvm_hw_breakpoint *)g_try_realloc(hw_breakpoints, size); | |
689 | } | |
690 | ||
691 | if (!hw_breakpoints) { | |
692 | nb_hw_breakpoints = 0; | |
693 | return -ENOMEM; | |
694 | } | |
695 | ||
696 | hw_breakpoints[nb_hw_breakpoints].addr = addr; | |
697 | hw_breakpoints[nb_hw_breakpoints].len = len; | |
698 | hw_breakpoints[nb_hw_breakpoints].type = type; | |
699 | ||
700 | nb_hw_breakpoints++; | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
8c012449 DH |
705 | int kvm_arch_insert_hw_breakpoint(target_ulong addr, |
706 | target_ulong len, int type) | |
707 | { | |
770a6379 DH |
708 | switch (type) { |
709 | case GDB_BREAKPOINT_HW: | |
710 | type = KVM_HW_BP; | |
711 | break; | |
712 | case GDB_WATCHPOINT_WRITE: | |
713 | if (len < 1) { | |
714 | return -EINVAL; | |
715 | } | |
716 | type = KVM_HW_WP_WRITE; | |
717 | break; | |
718 | default: | |
719 | return -ENOSYS; | |
720 | } | |
721 | return insert_hw_breakpoint(addr, len, type); | |
8c012449 DH |
722 | } |
723 | ||
724 | int kvm_arch_remove_hw_breakpoint(target_ulong addr, | |
725 | target_ulong len, int type) | |
726 | { | |
770a6379 DH |
727 | int size; |
728 | struct kvm_hw_breakpoint *bp = find_hw_breakpoint(addr, len, type); | |
729 | ||
730 | if (bp == NULL) { | |
731 | return -ENOENT; | |
732 | } | |
733 | ||
734 | nb_hw_breakpoints--; | |
735 | if (nb_hw_breakpoints > 0) { | |
736 | /* | |
737 | * In order to trim the array, move the last element to the position to | |
738 | * be removed - if necessary. | |
739 | */ | |
740 | if (bp != &hw_breakpoints[nb_hw_breakpoints]) { | |
741 | *bp = hw_breakpoints[nb_hw_breakpoints]; | |
742 | } | |
743 | size = nb_hw_breakpoints * sizeof(struct kvm_hw_breakpoint); | |
744 | hw_breakpoints = | |
745 | (struct kvm_hw_breakpoint *)g_realloc(hw_breakpoints, size); | |
746 | } else { | |
747 | g_free(hw_breakpoints); | |
748 | hw_breakpoints = NULL; | |
749 | } | |
750 | ||
751 | return 0; | |
8c012449 DH |
752 | } |
753 | ||
754 | void kvm_arch_remove_all_hw_breakpoints(void) | |
755 | { | |
770a6379 DH |
756 | nb_hw_breakpoints = 0; |
757 | g_free(hw_breakpoints); | |
758 | hw_breakpoints = NULL; | |
8c012449 DH |
759 | } |
760 | ||
761 | void kvm_arch_update_guest_debug(CPUState *cpu, struct kvm_guest_debug *dbg) | |
762 | { | |
770a6379 DH |
763 | int i; |
764 | ||
765 | if (nb_hw_breakpoints > 0) { | |
766 | dbg->arch.nr_hw_bp = nb_hw_breakpoints; | |
767 | dbg->arch.hw_bp = hw_breakpoints; | |
768 | ||
769 | for (i = 0; i < nb_hw_breakpoints; ++i) { | |
770 | hw_breakpoints[i].phys_addr = s390_cpu_get_phys_addr_debug(cpu, | |
771 | hw_breakpoints[i].addr); | |
772 | } | |
773 | dbg->control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP; | |
774 | } else { | |
775 | dbg->arch.nr_hw_bp = 0; | |
776 | dbg->arch.hw_bp = NULL; | |
777 | } | |
8c012449 DH |
778 | } |
779 | ||
20d695a9 | 780 | void kvm_arch_pre_run(CPUState *cpu, struct kvm_run *run) |
0e60a699 | 781 | { |
0e60a699 AG |
782 | } |
783 | ||
4c663752 | 784 | MemTxAttrs kvm_arch_post_run(CPUState *cs, struct kvm_run *run) |
0e60a699 | 785 | { |
4c663752 | 786 | return MEMTXATTRS_UNSPECIFIED; |
0e60a699 AG |
787 | } |
788 | ||
20d695a9 | 789 | int kvm_arch_process_async_events(CPUState *cs) |
0af691d7 | 790 | { |
225dc991 | 791 | return cs->halted; |
0af691d7 MT |
792 | } |
793 | ||
66ad0893 CH |
794 | static int s390_kvm_irq_to_interrupt(struct kvm_s390_irq *irq, |
795 | struct kvm_s390_interrupt *interrupt) | |
796 | { | |
797 | int r = 0; | |
798 | ||
799 | interrupt->type = irq->type; | |
800 | switch (irq->type) { | |
801 | case KVM_S390_INT_VIRTIO: | |
802 | interrupt->parm = irq->u.ext.ext_params; | |
803 | /* fall through */ | |
804 | case KVM_S390_INT_PFAULT_INIT: | |
805 | case KVM_S390_INT_PFAULT_DONE: | |
806 | interrupt->parm64 = irq->u.ext.ext_params2; | |
807 | break; | |
808 | case KVM_S390_PROGRAM_INT: | |
809 | interrupt->parm = irq->u.pgm.code; | |
810 | break; | |
811 | case KVM_S390_SIGP_SET_PREFIX: | |
812 | interrupt->parm = irq->u.prefix.address; | |
813 | break; | |
814 | case KVM_S390_INT_SERVICE: | |
815 | interrupt->parm = irq->u.ext.ext_params; | |
816 | break; | |
817 | case KVM_S390_MCHK: | |
818 | interrupt->parm = irq->u.mchk.cr14; | |
819 | interrupt->parm64 = irq->u.mchk.mcic; | |
820 | break; | |
821 | case KVM_S390_INT_EXTERNAL_CALL: | |
822 | interrupt->parm = irq->u.extcall.code; | |
823 | break; | |
824 | case KVM_S390_INT_EMERGENCY: | |
825 | interrupt->parm = irq->u.emerg.code; | |
826 | break; | |
827 | case KVM_S390_SIGP_STOP: | |
828 | case KVM_S390_RESTART: | |
829 | break; /* These types have no parameters */ | |
830 | case KVM_S390_INT_IO_MIN...KVM_S390_INT_IO_MAX: | |
831 | interrupt->parm = irq->u.io.subchannel_id << 16; | |
832 | interrupt->parm |= irq->u.io.subchannel_nr; | |
833 | interrupt->parm64 = (uint64_t)irq->u.io.io_int_parm << 32; | |
834 | interrupt->parm64 |= irq->u.io.io_int_word; | |
835 | break; | |
836 | default: | |
837 | r = -EINVAL; | |
838 | break; | |
839 | } | |
840 | return r; | |
841 | } | |
842 | ||
1191c949 | 843 | static void inject_vcpu_irq_legacy(CPUState *cs, struct kvm_s390_irq *irq) |
66ad0893 CH |
844 | { |
845 | struct kvm_s390_interrupt kvmint = {}; | |
66ad0893 CH |
846 | int r; |
847 | ||
848 | r = s390_kvm_irq_to_interrupt(irq, &kvmint); | |
849 | if (r < 0) { | |
850 | fprintf(stderr, "%s called with bogus interrupt\n", __func__); | |
851 | exit(1); | |
852 | } | |
853 | ||
854 | r = kvm_vcpu_ioctl(cs, KVM_S390_INTERRUPT, &kvmint); | |
855 | if (r < 0) { | |
856 | fprintf(stderr, "KVM failed to inject interrupt\n"); | |
857 | exit(1); | |
858 | } | |
859 | } | |
860 | ||
1191c949 JF |
861 | void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq) |
862 | { | |
863 | CPUState *cs = CPU(cpu); | |
864 | int r; | |
865 | ||
866 | if (cap_s390_irq) { | |
867 | r = kvm_vcpu_ioctl(cs, KVM_S390_IRQ, irq); | |
868 | if (!r) { | |
869 | return; | |
870 | } | |
871 | error_report("KVM failed to inject interrupt %llx", irq->type); | |
872 | exit(1); | |
873 | } | |
874 | ||
875 | inject_vcpu_irq_legacy(cs, irq); | |
876 | } | |
877 | ||
bbd8bb8e | 878 | static void __kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) |
66ad0893 CH |
879 | { |
880 | struct kvm_s390_interrupt kvmint = {}; | |
881 | int r; | |
882 | ||
883 | r = s390_kvm_irq_to_interrupt(irq, &kvmint); | |
884 | if (r < 0) { | |
885 | fprintf(stderr, "%s called with bogus interrupt\n", __func__); | |
886 | exit(1); | |
887 | } | |
888 | ||
889 | r = kvm_vm_ioctl(kvm_state, KVM_S390_INTERRUPT, &kvmint); | |
890 | if (r < 0) { | |
891 | fprintf(stderr, "KVM failed to inject interrupt\n"); | |
892 | exit(1); | |
893 | } | |
894 | } | |
895 | ||
bbd8bb8e CH |
896 | void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq) |
897 | { | |
898 | static bool use_flic = true; | |
899 | int r; | |
900 | ||
901 | if (use_flic) { | |
902 | r = kvm_s390_inject_flic(irq); | |
903 | if (r == -ENOSYS) { | |
904 | use_flic = false; | |
905 | } | |
906 | if (!r) { | |
907 | return; | |
908 | } | |
909 | } | |
910 | __kvm_s390_floating_interrupt(irq); | |
911 | } | |
912 | ||
de13d216 | 913 | void kvm_s390_virtio_irq(int config_change, uint64_t token) |
0e60a699 | 914 | { |
de13d216 CH |
915 | struct kvm_s390_irq irq = { |
916 | .type = KVM_S390_INT_VIRTIO, | |
917 | .u.ext.ext_params = config_change, | |
918 | .u.ext.ext_params2 = token, | |
919 | }; | |
0e60a699 | 920 | |
de13d216 | 921 | kvm_s390_floating_interrupt(&irq); |
0e60a699 AG |
922 | } |
923 | ||
de13d216 | 924 | void kvm_s390_service_interrupt(uint32_t parm) |
0e60a699 | 925 | { |
de13d216 CH |
926 | struct kvm_s390_irq irq = { |
927 | .type = KVM_S390_INT_SERVICE, | |
928 | .u.ext.ext_params = parm, | |
929 | }; | |
0e60a699 | 930 | |
de13d216 | 931 | kvm_s390_floating_interrupt(&irq); |
79afc36d CH |
932 | } |
933 | ||
1bc22652 | 934 | static void enter_pgmcheck(S390CPU *cpu, uint16_t code) |
0e60a699 | 935 | { |
de13d216 CH |
936 | struct kvm_s390_irq irq = { |
937 | .type = KVM_S390_PROGRAM_INT, | |
938 | .u.pgm.code = code, | |
939 | }; | |
940 | ||
941 | kvm_s390_vcpu_interrupt(cpu, &irq); | |
0e60a699 AG |
942 | } |
943 | ||
801cdd35 TH |
944 | void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code) |
945 | { | |
946 | struct kvm_s390_irq irq = { | |
947 | .type = KVM_S390_PROGRAM_INT, | |
948 | .u.pgm.code = code, | |
949 | .u.pgm.trans_exc_code = te_code, | |
950 | .u.pgm.exc_access_id = te_code & 3, | |
951 | }; | |
952 | ||
953 | kvm_s390_vcpu_interrupt(cpu, &irq); | |
954 | } | |
955 | ||
1bc22652 | 956 | static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, |
bcec36ea | 957 | uint16_t ipbh0) |
0e60a699 | 958 | { |
1bc22652 | 959 | CPUS390XState *env = &cpu->env; |
a0fa2cb8 TH |
960 | uint64_t sccb; |
961 | uint32_t code; | |
0e60a699 AG |
962 | int r = 0; |
963 | ||
cb446eca | 964 | cpu_synchronize_state(CPU(cpu)); |
0e60a699 AG |
965 | sccb = env->regs[ipbh0 & 0xf]; |
966 | code = env->regs[(ipbh0 & 0xf0) >> 4]; | |
967 | ||
6e252802 | 968 | r = sclp_service_call(env, sccb, code); |
9abf567d | 969 | if (r < 0) { |
1bc22652 | 970 | enter_pgmcheck(cpu, -r); |
e8803d93 TH |
971 | } else { |
972 | setcc(cpu, r); | |
0e60a699 | 973 | } |
81f7c56c | 974 | |
0e60a699 AG |
975 | return 0; |
976 | } | |
977 | ||
1eecf41b | 978 | static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) |
09b99878 | 979 | { |
09b99878 | 980 | CPUS390XState *env = &cpu->env; |
1eecf41b FB |
981 | int rc = 0; |
982 | uint16_t ipbh0 = (run->s390_sieic.ipb & 0xffff0000) >> 16; | |
3474b679 | 983 | |
44c68de0 | 984 | cpu_synchronize_state(CPU(cpu)); |
3474b679 | 985 | |
09b99878 | 986 | switch (ipa1) { |
1eecf41b | 987 | case PRIV_B2_XSCH: |
5d9bf1c0 | 988 | ioinst_handle_xsch(cpu, env->regs[1]); |
09b99878 | 989 | break; |
1eecf41b | 990 | case PRIV_B2_CSCH: |
5d9bf1c0 | 991 | ioinst_handle_csch(cpu, env->regs[1]); |
09b99878 | 992 | break; |
1eecf41b | 993 | case PRIV_B2_HSCH: |
5d9bf1c0 | 994 | ioinst_handle_hsch(cpu, env->regs[1]); |
09b99878 | 995 | break; |
1eecf41b | 996 | case PRIV_B2_MSCH: |
5d9bf1c0 | 997 | ioinst_handle_msch(cpu, env->regs[1], run->s390_sieic.ipb); |
09b99878 | 998 | break; |
1eecf41b | 999 | case PRIV_B2_SSCH: |
5d9bf1c0 | 1000 | ioinst_handle_ssch(cpu, env->regs[1], run->s390_sieic.ipb); |
09b99878 | 1001 | break; |
1eecf41b | 1002 | case PRIV_B2_STCRW: |
5d9bf1c0 | 1003 | ioinst_handle_stcrw(cpu, run->s390_sieic.ipb); |
09b99878 | 1004 | break; |
1eecf41b | 1005 | case PRIV_B2_STSCH: |
5d9bf1c0 | 1006 | ioinst_handle_stsch(cpu, env->regs[1], run->s390_sieic.ipb); |
09b99878 | 1007 | break; |
1eecf41b | 1008 | case PRIV_B2_TSCH: |
09b99878 CH |
1009 | /* We should only get tsch via KVM_EXIT_S390_TSCH. */ |
1010 | fprintf(stderr, "Spurious tsch intercept\n"); | |
1011 | break; | |
1eecf41b | 1012 | case PRIV_B2_CHSC: |
5d9bf1c0 | 1013 | ioinst_handle_chsc(cpu, run->s390_sieic.ipb); |
09b99878 | 1014 | break; |
1eecf41b | 1015 | case PRIV_B2_TPI: |
09b99878 CH |
1016 | /* This should have been handled by kvm already. */ |
1017 | fprintf(stderr, "Spurious tpi intercept\n"); | |
1018 | break; | |
1eecf41b | 1019 | case PRIV_B2_SCHM: |
5d9bf1c0 TH |
1020 | ioinst_handle_schm(cpu, env->regs[1], env->regs[2], |
1021 | run->s390_sieic.ipb); | |
09b99878 | 1022 | break; |
1eecf41b | 1023 | case PRIV_B2_RSCH: |
5d9bf1c0 | 1024 | ioinst_handle_rsch(cpu, env->regs[1]); |
09b99878 | 1025 | break; |
1eecf41b | 1026 | case PRIV_B2_RCHP: |
5d9bf1c0 | 1027 | ioinst_handle_rchp(cpu, env->regs[1]); |
09b99878 | 1028 | break; |
1eecf41b | 1029 | case PRIV_B2_STCPS: |
09b99878 | 1030 | /* We do not provide this instruction, it is suppressed. */ |
09b99878 | 1031 | break; |
1eecf41b | 1032 | case PRIV_B2_SAL: |
5d9bf1c0 | 1033 | ioinst_handle_sal(cpu, env->regs[1]); |
09b99878 | 1034 | break; |
1eecf41b | 1035 | case PRIV_B2_SIGA: |
c1e8dfb5 | 1036 | /* Not provided, set CC = 3 for subchannel not operational */ |
5d9bf1c0 | 1037 | setcc(cpu, 3); |
09b99878 | 1038 | break; |
1eecf41b FB |
1039 | case PRIV_B2_SCLP_CALL: |
1040 | rc = kvm_sclp_service_call(cpu, run, ipbh0); | |
1041 | break; | |
c1e8dfb5 | 1042 | default: |
1eecf41b FB |
1043 | rc = -1; |
1044 | DPRINTF("KVM: unhandled PRIV: 0xb2%x\n", ipa1); | |
1045 | break; | |
09b99878 CH |
1046 | } |
1047 | ||
1eecf41b | 1048 | return rc; |
09b99878 CH |
1049 | } |
1050 | ||
6cb1e49d AY |
1051 | static uint64_t get_base_disp_rxy(S390CPU *cpu, struct kvm_run *run, |
1052 | uint8_t *ar) | |
863f6f52 FB |
1053 | { |
1054 | CPUS390XState *env = &cpu->env; | |
1055 | uint32_t x2 = (run->s390_sieic.ipa & 0x000f); | |
1056 | uint32_t base2 = run->s390_sieic.ipb >> 28; | |
1057 | uint32_t disp2 = ((run->s390_sieic.ipb & 0x0fff0000) >> 16) + | |
1058 | ((run->s390_sieic.ipb & 0xff00) << 4); | |
1059 | ||
1060 | if (disp2 & 0x80000) { | |
1061 | disp2 += 0xfff00000; | |
1062 | } | |
6cb1e49d AY |
1063 | if (ar) { |
1064 | *ar = base2; | |
1065 | } | |
863f6f52 FB |
1066 | |
1067 | return (base2 ? env->regs[base2] : 0) + | |
1068 | (x2 ? env->regs[x2] : 0) + (long)(int)disp2; | |
1069 | } | |
1070 | ||
6cb1e49d AY |
1071 | static uint64_t get_base_disp_rsy(S390CPU *cpu, struct kvm_run *run, |
1072 | uint8_t *ar) | |
863f6f52 FB |
1073 | { |
1074 | CPUS390XState *env = &cpu->env; | |
1075 | uint32_t base2 = run->s390_sieic.ipb >> 28; | |
1076 | uint32_t disp2 = ((run->s390_sieic.ipb & 0x0fff0000) >> 16) + | |
1077 | ((run->s390_sieic.ipb & 0xff00) << 4); | |
1078 | ||
1079 | if (disp2 & 0x80000) { | |
1080 | disp2 += 0xfff00000; | |
1081 | } | |
6cb1e49d AY |
1082 | if (ar) { |
1083 | *ar = base2; | |
1084 | } | |
863f6f52 FB |
1085 | |
1086 | return (base2 ? env->regs[base2] : 0) + (long)(int)disp2; | |
1087 | } | |
1088 | ||
1089 | static int kvm_clp_service_call(S390CPU *cpu, struct kvm_run *run) | |
1090 | { | |
1091 | uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; | |
1092 | ||
1093 | return clp_service_call(cpu, r2); | |
1094 | } | |
1095 | ||
1096 | static int kvm_pcilg_service_call(S390CPU *cpu, struct kvm_run *run) | |
1097 | { | |
1098 | uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; | |
1099 | uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; | |
1100 | ||
1101 | return pcilg_service_call(cpu, r1, r2); | |
1102 | } | |
1103 | ||
1104 | static int kvm_pcistg_service_call(S390CPU *cpu, struct kvm_run *run) | |
1105 | { | |
1106 | uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; | |
1107 | uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; | |
1108 | ||
1109 | return pcistg_service_call(cpu, r1, r2); | |
1110 | } | |
1111 | ||
1112 | static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run) | |
1113 | { | |
1114 | uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; | |
1115 | uint64_t fiba; | |
6cb1e49d | 1116 | uint8_t ar; |
863f6f52 FB |
1117 | |
1118 | cpu_synchronize_state(CPU(cpu)); | |
6cb1e49d | 1119 | fiba = get_base_disp_rxy(cpu, run, &ar); |
863f6f52 | 1120 | |
6cb1e49d | 1121 | return stpcifc_service_call(cpu, r1, fiba, ar); |
863f6f52 FB |
1122 | } |
1123 | ||
1124 | static int kvm_sic_service_call(S390CPU *cpu, struct kvm_run *run) | |
1125 | { | |
1126 | /* NOOP */ | |
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | static int kvm_rpcit_service_call(S390CPU *cpu, struct kvm_run *run) | |
1131 | { | |
1132 | uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; | |
1133 | uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; | |
1134 | ||
1135 | return rpcit_service_call(cpu, r1, r2); | |
1136 | } | |
1137 | ||
1138 | static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run) | |
1139 | { | |
1140 | uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; | |
1141 | uint8_t r3 = run->s390_sieic.ipa & 0x000f; | |
1142 | uint64_t gaddr; | |
6cb1e49d | 1143 | uint8_t ar; |
863f6f52 FB |
1144 | |
1145 | cpu_synchronize_state(CPU(cpu)); | |
6cb1e49d | 1146 | gaddr = get_base_disp_rsy(cpu, run, &ar); |
863f6f52 | 1147 | |
6cb1e49d | 1148 | return pcistb_service_call(cpu, r1, r3, gaddr, ar); |
863f6f52 FB |
1149 | } |
1150 | ||
1151 | static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run) | |
1152 | { | |
1153 | uint8_t r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; | |
1154 | uint64_t fiba; | |
6cb1e49d | 1155 | uint8_t ar; |
863f6f52 FB |
1156 | |
1157 | cpu_synchronize_state(CPU(cpu)); | |
6cb1e49d | 1158 | fiba = get_base_disp_rxy(cpu, run, &ar); |
863f6f52 | 1159 | |
6cb1e49d | 1160 | return mpcifc_service_call(cpu, r1, fiba, ar); |
863f6f52 FB |
1161 | } |
1162 | ||
1eecf41b | 1163 | static int handle_b9(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) |
0e60a699 AG |
1164 | { |
1165 | int r = 0; | |
0e60a699 | 1166 | |
0e60a699 | 1167 | switch (ipa1) { |
863f6f52 FB |
1168 | case PRIV_B9_CLP: |
1169 | r = kvm_clp_service_call(cpu, run); | |
1170 | break; | |
1171 | case PRIV_B9_PCISTG: | |
1172 | r = kvm_pcistg_service_call(cpu, run); | |
1173 | break; | |
1174 | case PRIV_B9_PCILG: | |
1175 | r = kvm_pcilg_service_call(cpu, run); | |
1176 | break; | |
1177 | case PRIV_B9_RPCIT: | |
1178 | r = kvm_rpcit_service_call(cpu, run); | |
1179 | break; | |
1eecf41b FB |
1180 | case PRIV_B9_EQBS: |
1181 | /* just inject exception */ | |
1182 | r = -1; | |
1183 | break; | |
1184 | default: | |
1185 | r = -1; | |
1186 | DPRINTF("KVM: unhandled PRIV: 0xb9%x\n", ipa1); | |
1187 | break; | |
1188 | } | |
1189 | ||
1190 | return r; | |
1191 | } | |
1192 | ||
80765f07 | 1193 | static int handle_eb(S390CPU *cpu, struct kvm_run *run, uint8_t ipbl) |
1eecf41b FB |
1194 | { |
1195 | int r = 0; | |
1196 | ||
80765f07 | 1197 | switch (ipbl) { |
863f6f52 FB |
1198 | case PRIV_EB_PCISTB: |
1199 | r = kvm_pcistb_service_call(cpu, run); | |
1200 | break; | |
1201 | case PRIV_EB_SIC: | |
1202 | r = kvm_sic_service_call(cpu, run); | |
1203 | break; | |
1eecf41b FB |
1204 | case PRIV_EB_SQBS: |
1205 | /* just inject exception */ | |
1206 | r = -1; | |
1207 | break; | |
1208 | default: | |
1209 | r = -1; | |
80765f07 | 1210 | DPRINTF("KVM: unhandled PRIV: 0xeb%x\n", ipbl); |
1eecf41b | 1211 | break; |
0e60a699 AG |
1212 | } |
1213 | ||
1214 | return r; | |
1215 | } | |
1216 | ||
863f6f52 FB |
1217 | static int handle_e3(S390CPU *cpu, struct kvm_run *run, uint8_t ipbl) |
1218 | { | |
1219 | int r = 0; | |
1220 | ||
1221 | switch (ipbl) { | |
1222 | case PRIV_E3_MPCIFC: | |
1223 | r = kvm_mpcifc_service_call(cpu, run); | |
1224 | break; | |
1225 | case PRIV_E3_STPCIFC: | |
1226 | r = kvm_stpcifc_service_call(cpu, run); | |
1227 | break; | |
1228 | default: | |
1229 | r = -1; | |
1230 | DPRINTF("KVM: unhandled PRIV: 0xe3%x\n", ipbl); | |
1231 | break; | |
1232 | } | |
1233 | ||
1234 | return r; | |
1235 | } | |
1236 | ||
4fd6dd06 | 1237 | static int handle_hypercall(S390CPU *cpu, struct kvm_run *run) |
0e60a699 | 1238 | { |
4fd6dd06 | 1239 | CPUS390XState *env = &cpu->env; |
77319f22 | 1240 | int ret; |
3474b679 | 1241 | |
44c68de0 | 1242 | cpu_synchronize_state(CPU(cpu)); |
77319f22 TH |
1243 | ret = s390_virtio_hypercall(env); |
1244 | if (ret == -EINVAL) { | |
1245 | enter_pgmcheck(cpu, PGM_SPECIFICATION); | |
1246 | return 0; | |
1247 | } | |
0e60a699 | 1248 | |
77319f22 | 1249 | return ret; |
0e60a699 AG |
1250 | } |
1251 | ||
268846ba ED |
1252 | static void kvm_handle_diag_308(S390CPU *cpu, struct kvm_run *run) |
1253 | { | |
1254 | uint64_t r1, r3; | |
1255 | ||
1256 | cpu_synchronize_state(CPU(cpu)); | |
20dd25bb | 1257 | r1 = (run->s390_sieic.ipa & 0x00f0) >> 4; |
268846ba ED |
1258 | r3 = run->s390_sieic.ipa & 0x000f; |
1259 | handle_diag_308(&cpu->env, r1, r3); | |
1260 | } | |
1261 | ||
b30f4dfb DH |
1262 | static int handle_sw_breakpoint(S390CPU *cpu, struct kvm_run *run) |
1263 | { | |
1264 | CPUS390XState *env = &cpu->env; | |
1265 | unsigned long pc; | |
1266 | ||
1267 | cpu_synchronize_state(CPU(cpu)); | |
1268 | ||
1269 | pc = env->psw.addr - 4; | |
1270 | if (kvm_find_sw_breakpoint(CPU(cpu), pc)) { | |
1271 | env->psw.addr = pc; | |
1272 | return EXCP_DEBUG; | |
1273 | } | |
1274 | ||
1275 | return -ENOENT; | |
1276 | } | |
1277 | ||
638129ff CH |
1278 | #define DIAG_KVM_CODE_MASK 0x000000000000ffff |
1279 | ||
1280 | static int handle_diag(S390CPU *cpu, struct kvm_run *run, uint32_t ipb) | |
0e60a699 AG |
1281 | { |
1282 | int r = 0; | |
638129ff CH |
1283 | uint16_t func_code; |
1284 | ||
1285 | /* | |
1286 | * For any diagnose call we support, bits 48-63 of the resulting | |
1287 | * address specify the function code; the remainder is ignored. | |
1288 | */ | |
6cb1e49d | 1289 | func_code = decode_basedisp_rs(&cpu->env, ipb, NULL) & DIAG_KVM_CODE_MASK; |
638129ff | 1290 | switch (func_code) { |
268846ba ED |
1291 | case DIAG_IPL: |
1292 | kvm_handle_diag_308(cpu, run); | |
1293 | break; | |
39fbc5c6 CB |
1294 | case DIAG_KVM_HYPERCALL: |
1295 | r = handle_hypercall(cpu, run); | |
1296 | break; | |
1297 | case DIAG_KVM_BREAKPOINT: | |
b30f4dfb | 1298 | r = handle_sw_breakpoint(cpu, run); |
39fbc5c6 CB |
1299 | break; |
1300 | default: | |
638129ff | 1301 | DPRINTF("KVM: unknown DIAG: 0x%x\n", func_code); |
68540b1a | 1302 | enter_pgmcheck(cpu, PGM_SPECIFICATION); |
39fbc5c6 | 1303 | break; |
0e60a699 AG |
1304 | } |
1305 | ||
1306 | return r; | |
1307 | } | |
1308 | ||
6eb8f212 DH |
1309 | typedef struct SigpInfo { |
1310 | S390CPU *cpu; | |
22740e3f | 1311 | uint64_t param; |
6eb8f212 DH |
1312 | int cc; |
1313 | uint64_t *status_reg; | |
1314 | } SigpInfo; | |
1315 | ||
36b5c845 | 1316 | static void set_sigp_status(SigpInfo *si, uint64_t status) |
b20a461f | 1317 | { |
36b5c845 DH |
1318 | *si->status_reg &= 0xffffffff00000000ULL; |
1319 | *si->status_reg |= status; | |
1320 | si->cc = SIGP_CC_STATUS_STORED; | |
1321 | } | |
6e6ad8db | 1322 | |
6eb8f212 | 1323 | static void sigp_start(void *arg) |
b20a461f | 1324 | { |
6eb8f212 | 1325 | SigpInfo *si = arg; |
6e6ad8db | 1326 | |
4f2b55d1 DH |
1327 | if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { |
1328 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1329 | return; | |
1330 | } | |
1331 | ||
6eb8f212 DH |
1332 | s390_cpu_set_state(CPU_STATE_OPERATING, si->cpu); |
1333 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
b20a461f TH |
1334 | } |
1335 | ||
18ff9494 | 1336 | static void sigp_stop(void *arg) |
0e60a699 | 1337 | { |
18ff9494 DH |
1338 | SigpInfo *si = arg; |
1339 | struct kvm_s390_irq irq = { | |
1340 | .type = KVM_S390_SIGP_STOP, | |
1341 | }; | |
1342 | ||
1343 | if (s390_cpu_get_state(si->cpu) != CPU_STATE_OPERATING) { | |
1344 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1345 | return; | |
1346 | } | |
1347 | ||
1348 | /* disabled wait - sleeping in user space */ | |
1349 | if (CPU(si->cpu)->halted) { | |
1350 | s390_cpu_set_state(CPU_STATE_STOPPED, si->cpu); | |
1351 | } else { | |
1352 | /* execute the stop function */ | |
1353 | si->cpu->env.sigp_order = SIGP_STOP; | |
1354 | kvm_s390_vcpu_interrupt(si->cpu, &irq); | |
1355 | } | |
1356 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1357 | } | |
1358 | ||
1359 | #define KVM_S390_STORE_STATUS_DEF_ADDR offsetof(LowCore, floating_pt_save_area) | |
1360 | #define SAVE_AREA_SIZE 512 | |
1361 | static int kvm_s390_store_status(S390CPU *cpu, hwaddr addr, bool store_arch) | |
1362 | { | |
1363 | static const uint8_t ar_id = 1; | |
1364 | uint64_t ckc = cpu->env.ckc >> 8; | |
1365 | void *mem; | |
1366 | hwaddr len = SAVE_AREA_SIZE; | |
1367 | ||
1368 | mem = cpu_physical_memory_map(addr, &len, 1); | |
1369 | if (!mem) { | |
1370 | return -EFAULT; | |
1371 | } | |
1372 | if (len != SAVE_AREA_SIZE) { | |
1373 | cpu_physical_memory_unmap(mem, len, 1, 0); | |
1374 | return -EFAULT; | |
1375 | } | |
1376 | ||
1377 | if (store_arch) { | |
1378 | cpu_physical_memory_write(offsetof(LowCore, ar_access_id), &ar_id, 1); | |
1379 | } | |
1380 | memcpy(mem, &cpu->env.fregs, 128); | |
1381 | memcpy(mem + 128, &cpu->env.regs, 128); | |
1382 | memcpy(mem + 256, &cpu->env.psw, 16); | |
1383 | memcpy(mem + 280, &cpu->env.psa, 4); | |
1384 | memcpy(mem + 284, &cpu->env.fpc, 4); | |
1385 | memcpy(mem + 292, &cpu->env.todpr, 4); | |
1386 | memcpy(mem + 296, &cpu->env.cputm, 8); | |
1387 | memcpy(mem + 304, &ckc, 8); | |
1388 | memcpy(mem + 320, &cpu->env.aregs, 64); | |
1389 | memcpy(mem + 384, &cpu->env.cregs, 128); | |
1390 | ||
1391 | cpu_physical_memory_unmap(mem, len, 1, len); | |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | static void sigp_stop_and_store_status(void *arg) | |
1397 | { | |
1398 | SigpInfo *si = arg; | |
1399 | struct kvm_s390_irq irq = { | |
1400 | .type = KVM_S390_SIGP_STOP, | |
1401 | }; | |
1402 | ||
1403 | /* disabled wait - sleeping in user space */ | |
1404 | if (s390_cpu_get_state(si->cpu) == CPU_STATE_OPERATING && | |
1405 | CPU(si->cpu)->halted) { | |
1406 | s390_cpu_set_state(CPU_STATE_STOPPED, si->cpu); | |
1407 | } | |
1408 | ||
1409 | switch (s390_cpu_get_state(si->cpu)) { | |
1410 | case CPU_STATE_OPERATING: | |
1411 | si->cpu->env.sigp_order = SIGP_STOP_STORE_STATUS; | |
1412 | kvm_s390_vcpu_interrupt(si->cpu, &irq); | |
1413 | /* store will be performed when handling the stop intercept */ | |
1414 | break; | |
1415 | case CPU_STATE_STOPPED: | |
1416 | /* already stopped, just store the status */ | |
1417 | cpu_synchronize_state(CPU(si->cpu)); | |
1418 | kvm_s390_store_status(si->cpu, KVM_S390_STORE_STATUS_DEF_ADDR, true); | |
1419 | break; | |
1420 | } | |
1421 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1422 | } | |
1423 | ||
1424 | static void sigp_store_status_at_address(void *arg) | |
1425 | { | |
1426 | SigpInfo *si = arg; | |
1427 | uint32_t address = si->param & 0x7ffffe00u; | |
1428 | ||
1429 | /* cpu has to be stopped */ | |
1430 | if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { | |
1431 | set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | cpu_synchronize_state(CPU(si->cpu)); | |
1436 | ||
1437 | if (kvm_s390_store_status(si->cpu, address, false)) { | |
1438 | set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); | |
1439 | return; | |
1440 | } | |
1441 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1442 | } | |
1443 | ||
6eb8f212 | 1444 | static void sigp_restart(void *arg) |
0e60a699 | 1445 | { |
6eb8f212 | 1446 | SigpInfo *si = arg; |
de13d216 CH |
1447 | struct kvm_s390_irq irq = { |
1448 | .type = KVM_S390_RESTART, | |
1449 | }; | |
1450 | ||
e3b7b578 DH |
1451 | switch (s390_cpu_get_state(si->cpu)) { |
1452 | case CPU_STATE_STOPPED: | |
1453 | /* the restart irq has to be delivered prior to any other pending irq */ | |
1454 | cpu_synchronize_state(CPU(si->cpu)); | |
1455 | do_restart_interrupt(&si->cpu->env); | |
1456 | s390_cpu_set_state(CPU_STATE_OPERATING, si->cpu); | |
1457 | break; | |
1458 | case CPU_STATE_OPERATING: | |
1459 | kvm_s390_vcpu_interrupt(si->cpu, &irq); | |
1460 | break; | |
1461 | } | |
6eb8f212 | 1462 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; |
6e6ad8db DH |
1463 | } |
1464 | ||
1465 | int kvm_s390_cpu_restart(S390CPU *cpu) | |
1466 | { | |
6eb8f212 DH |
1467 | SigpInfo si = { |
1468 | .cpu = cpu, | |
1469 | }; | |
1470 | ||
1471 | run_on_cpu(CPU(cpu), sigp_restart, &si); | |
7f7f9752 | 1472 | DPRINTF("DONE: KVM cpu restart: %p\n", &cpu->env); |
0e60a699 AG |
1473 | return 0; |
1474 | } | |
1475 | ||
f7d3e466 | 1476 | static void sigp_initial_cpu_reset(void *arg) |
0e60a699 | 1477 | { |
6eb8f212 DH |
1478 | SigpInfo *si = arg; |
1479 | CPUState *cs = CPU(si->cpu); | |
1480 | S390CPUClass *scc = S390_CPU_GET_CLASS(si->cpu); | |
d5900813 | 1481 | |
6eb8f212 DH |
1482 | cpu_synchronize_state(cs); |
1483 | scc->initial_cpu_reset(cs); | |
1484 | cpu_synchronize_post_reset(cs); | |
1485 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
0e60a699 AG |
1486 | } |
1487 | ||
04c2b516 TH |
1488 | static void sigp_cpu_reset(void *arg) |
1489 | { | |
6eb8f212 DH |
1490 | SigpInfo *si = arg; |
1491 | CPUState *cs = CPU(si->cpu); | |
1492 | S390CPUClass *scc = S390_CPU_GET_CLASS(si->cpu); | |
04c2b516 | 1493 | |
6eb8f212 DH |
1494 | cpu_synchronize_state(cs); |
1495 | scc->cpu_reset(cs); | |
1496 | cpu_synchronize_post_reset(cs); | |
1497 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
04c2b516 TH |
1498 | } |
1499 | ||
18ff9494 | 1500 | static void sigp_set_prefix(void *arg) |
0e60a699 | 1501 | { |
18ff9494 DH |
1502 | SigpInfo *si = arg; |
1503 | uint32_t addr = si->param & 0x7fffe000u; | |
0e60a699 | 1504 | |
18ff9494 | 1505 | cpu_synchronize_state(CPU(si->cpu)); |
0e60a699 | 1506 | |
18ff9494 DH |
1507 | if (!address_space_access_valid(&address_space_memory, addr, |
1508 | sizeof(struct LowCore), false)) { | |
1509 | set_sigp_status(si, SIGP_STAT_INVALID_PARAMETER); | |
1510 | return; | |
1511 | } | |
0e60a699 | 1512 | |
18ff9494 DH |
1513 | /* cpu has to be stopped */ |
1514 | if (s390_cpu_get_state(si->cpu) != CPU_STATE_STOPPED) { | |
1515 | set_sigp_status(si, SIGP_STAT_INCORRECT_STATE); | |
1516 | return; | |
0e60a699 AG |
1517 | } |
1518 | ||
18ff9494 DH |
1519 | si->cpu->env.psa = addr; |
1520 | cpu_synchronize_post_init(CPU(si->cpu)); | |
1521 | si->cc = SIGP_CC_ORDER_CODE_ACCEPTED; | |
1522 | } | |
1523 | ||
6eb8f212 | 1524 | static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order, |
22740e3f | 1525 | uint64_t param, uint64_t *status_reg) |
6eb8f212 DH |
1526 | { |
1527 | SigpInfo si = { | |
1528 | .cpu = dst_cpu, | |
22740e3f | 1529 | .param = param, |
6eb8f212 DH |
1530 | .status_reg = status_reg, |
1531 | }; | |
1532 | ||
1533 | /* cpu available? */ | |
1534 | if (dst_cpu == NULL) { | |
1535 | return SIGP_CC_NOT_OPERATIONAL; | |
1536 | } | |
1537 | ||
18ff9494 DH |
1538 | /* only resets can break pending orders */ |
1539 | if (dst_cpu->env.sigp_order != 0 && | |
1540 | order != SIGP_CPU_RESET && | |
1541 | order != SIGP_INITIAL_CPU_RESET) { | |
1542 | return SIGP_CC_BUSY; | |
1543 | } | |
1544 | ||
6eb8f212 | 1545 | switch (order) { |
b20a461f | 1546 | case SIGP_START: |
6eb8f212 DH |
1547 | run_on_cpu(CPU(dst_cpu), sigp_start, &si); |
1548 | break; | |
18ff9494 DH |
1549 | case SIGP_STOP: |
1550 | run_on_cpu(CPU(dst_cpu), sigp_stop, &si); | |
b20a461f | 1551 | break; |
0b9972a2 | 1552 | case SIGP_RESTART: |
6eb8f212 | 1553 | run_on_cpu(CPU(dst_cpu), sigp_restart, &si); |
0b9972a2 | 1554 | break; |
18ff9494 DH |
1555 | case SIGP_STOP_STORE_STATUS: |
1556 | run_on_cpu(CPU(dst_cpu), sigp_stop_and_store_status, &si); | |
1557 | break; | |
1558 | case SIGP_STORE_STATUS_ADDR: | |
1559 | run_on_cpu(CPU(dst_cpu), sigp_store_status_at_address, &si); | |
1560 | break; | |
1561 | case SIGP_SET_PREFIX: | |
1562 | run_on_cpu(CPU(dst_cpu), sigp_set_prefix, &si); | |
0788082a | 1563 | break; |
0b9972a2 | 1564 | case SIGP_INITIAL_CPU_RESET: |
6eb8f212 | 1565 | run_on_cpu(CPU(dst_cpu), sigp_initial_cpu_reset, &si); |
0b9972a2 | 1566 | break; |
04c2b516 | 1567 | case SIGP_CPU_RESET: |
6eb8f212 | 1568 | run_on_cpu(CPU(dst_cpu), sigp_cpu_reset, &si); |
04c2b516 | 1569 | break; |
0b9972a2 | 1570 | default: |
6eb8f212 | 1571 | DPRINTF("KVM: unknown SIGP: 0x%x\n", order); |
36b5c845 | 1572 | set_sigp_status(&si, SIGP_STAT_INVALID_ORDER); |
6eb8f212 | 1573 | } |
04c2b516 | 1574 | |
6eb8f212 | 1575 | return si.cc; |
04c2b516 TH |
1576 | } |
1577 | ||
18ff9494 DH |
1578 | static int sigp_set_architecture(S390CPU *cpu, uint32_t param, |
1579 | uint64_t *status_reg) | |
1580 | { | |
1581 | CPUState *cur_cs; | |
1582 | S390CPU *cur_cpu; | |
1583 | ||
1584 | /* due to the BQL, we are the only active cpu */ | |
1585 | CPU_FOREACH(cur_cs) { | |
1586 | cur_cpu = S390_CPU(cur_cs); | |
1587 | if (cur_cpu->env.sigp_order != 0) { | |
1588 | return SIGP_CC_BUSY; | |
1589 | } | |
1590 | cpu_synchronize_state(cur_cs); | |
1591 | /* all but the current one have to be stopped */ | |
1592 | if (cur_cpu != cpu && | |
1593 | s390_cpu_get_state(cur_cpu) != CPU_STATE_STOPPED) { | |
1594 | *status_reg &= 0xffffffff00000000ULL; | |
1595 | *status_reg |= SIGP_STAT_INCORRECT_STATE; | |
1596 | return SIGP_CC_STATUS_STORED; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | switch (param & 0xff) { | |
1601 | case SIGP_MODE_ESA_S390: | |
1602 | /* not supported */ | |
1603 | return SIGP_CC_NOT_OPERATIONAL; | |
1604 | case SIGP_MODE_Z_ARCH_TRANS_ALL_PSW: | |
1605 | case SIGP_MODE_Z_ARCH_TRANS_CUR_PSW: | |
1606 | CPU_FOREACH(cur_cs) { | |
1607 | cur_cpu = S390_CPU(cur_cs); | |
1608 | cur_cpu->env.pfault_token = -1UL; | |
1609 | } | |
0b9972a2 | 1610 | break; |
18ff9494 DH |
1611 | default: |
1612 | *status_reg &= 0xffffffff00000000ULL; | |
1613 | *status_reg |= SIGP_STAT_INVALID_PARAMETER; | |
1614 | return SIGP_CC_STATUS_STORED; | |
0e60a699 AG |
1615 | } |
1616 | ||
18ff9494 DH |
1617 | return SIGP_CC_ORDER_CODE_ACCEPTED; |
1618 | } | |
1619 | ||
b8031adb TH |
1620 | #define SIGP_ORDER_MASK 0x000000ff |
1621 | ||
f7575c96 | 1622 | static int handle_sigp(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) |
0e60a699 | 1623 | { |
f7575c96 | 1624 | CPUS390XState *env = &cpu->env; |
6eb8f212 DH |
1625 | const uint8_t r1 = ipa1 >> 4; |
1626 | const uint8_t r3 = ipa1 & 0x0f; | |
1627 | int ret; | |
1628 | uint8_t order; | |
1629 | uint64_t *status_reg; | |
22740e3f | 1630 | uint64_t param; |
6eb8f212 | 1631 | S390CPU *dst_cpu = NULL; |
0e60a699 | 1632 | |
cb446eca | 1633 | cpu_synchronize_state(CPU(cpu)); |
0e60a699 AG |
1634 | |
1635 | /* get order code */ | |
6cb1e49d AY |
1636 | order = decode_basedisp_rs(env, run->s390_sieic.ipb, NULL) |
1637 | & SIGP_ORDER_MASK; | |
6eb8f212 | 1638 | status_reg = &env->regs[r1]; |
22740e3f | 1639 | param = (r1 % 2) ? env->regs[r1] : env->regs[r1 + 1]; |
0e60a699 | 1640 | |
6eb8f212 | 1641 | switch (order) { |
0b9972a2 | 1642 | case SIGP_SET_ARCH: |
18ff9494 | 1643 | ret = sigp_set_architecture(cpu, param, status_reg); |
04c2b516 | 1644 | break; |
0b9972a2 | 1645 | default: |
6eb8f212 DH |
1646 | /* all other sigp orders target a single vcpu */ |
1647 | dst_cpu = s390_cpu_addr2state(env->regs[r3]); | |
22740e3f | 1648 | ret = handle_sigp_single_dst(dst_cpu, order, param, status_reg); |
0e60a699 AG |
1649 | } |
1650 | ||
56dba22b DH |
1651 | trace_kvm_sigp_finished(order, CPU(cpu)->cpu_index, |
1652 | dst_cpu ? CPU(dst_cpu)->cpu_index : -1, ret); | |
1653 | ||
6eb8f212 DH |
1654 | if (ret >= 0) { |
1655 | setcc(cpu, ret); | |
1656 | return 0; | |
1657 | } | |
1658 | ||
1659 | return ret; | |
0e60a699 AG |
1660 | } |
1661 | ||
b30f4dfb | 1662 | static int handle_instruction(S390CPU *cpu, struct kvm_run *run) |
0e60a699 AG |
1663 | { |
1664 | unsigned int ipa0 = (run->s390_sieic.ipa & 0xff00); | |
1665 | uint8_t ipa1 = run->s390_sieic.ipa & 0x00ff; | |
d7963c43 | 1666 | int r = -1; |
0e60a699 | 1667 | |
e67137c6 PM |
1668 | DPRINTF("handle_instruction 0x%x 0x%x\n", |
1669 | run->s390_sieic.ipa, run->s390_sieic.ipb); | |
0e60a699 | 1670 | switch (ipa0) { |
09b99878 | 1671 | case IPA0_B2: |
1eecf41b FB |
1672 | r = handle_b2(cpu, run, ipa1); |
1673 | break; | |
09b99878 | 1674 | case IPA0_B9: |
1eecf41b FB |
1675 | r = handle_b9(cpu, run, ipa1); |
1676 | break; | |
09b99878 | 1677 | case IPA0_EB: |
80765f07 | 1678 | r = handle_eb(cpu, run, run->s390_sieic.ipb & 0xff); |
09b99878 | 1679 | break; |
863f6f52 FB |
1680 | case IPA0_E3: |
1681 | r = handle_e3(cpu, run, run->s390_sieic.ipb & 0xff); | |
1682 | break; | |
09b99878 | 1683 | case IPA0_DIAG: |
638129ff | 1684 | r = handle_diag(cpu, run, run->s390_sieic.ipb); |
09b99878 CH |
1685 | break; |
1686 | case IPA0_SIGP: | |
1687 | r = handle_sigp(cpu, run, ipa1); | |
1688 | break; | |
0e60a699 AG |
1689 | } |
1690 | ||
1691 | if (r < 0) { | |
b30f4dfb | 1692 | r = 0; |
1bc22652 | 1693 | enter_pgmcheck(cpu, 0x0001); |
0e60a699 | 1694 | } |
b30f4dfb DH |
1695 | |
1696 | return r; | |
0e60a699 AG |
1697 | } |
1698 | ||
f7575c96 | 1699 | static bool is_special_wait_psw(CPUState *cs) |
eca3ed03 CB |
1700 | { |
1701 | /* signal quiesce */ | |
f7575c96 | 1702 | return cs->kvm_run->psw_addr == 0xfffUL; |
eca3ed03 CB |
1703 | } |
1704 | ||
a2689242 TH |
1705 | static void guest_panicked(void) |
1706 | { | |
3a449690 WX |
1707 | qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE, |
1708 | &error_abort); | |
a2689242 TH |
1709 | vm_stop(RUN_STATE_GUEST_PANICKED); |
1710 | } | |
1711 | ||
1712 | static void unmanageable_intercept(S390CPU *cpu, const char *str, int pswoffset) | |
1713 | { | |
1714 | CPUState *cs = CPU(cpu); | |
1715 | ||
1716 | error_report("Unmanageable %s! CPU%i new PSW: 0x%016lx:%016lx", | |
1717 | str, cs->cpu_index, ldq_phys(cs->as, cpu->env.psa + pswoffset), | |
1718 | ldq_phys(cs->as, cpu->env.psa + pswoffset + 8)); | |
eb24f7c6 | 1719 | s390_cpu_halt(cpu); |
a2689242 TH |
1720 | guest_panicked(); |
1721 | } | |
1722 | ||
1bc22652 | 1723 | static int handle_intercept(S390CPU *cpu) |
0e60a699 | 1724 | { |
f7575c96 AF |
1725 | CPUState *cs = CPU(cpu); |
1726 | struct kvm_run *run = cs->kvm_run; | |
0e60a699 AG |
1727 | int icpt_code = run->s390_sieic.icptcode; |
1728 | int r = 0; | |
1729 | ||
e67137c6 | 1730 | DPRINTF("intercept: 0x%x (at 0x%lx)\n", icpt_code, |
f7575c96 | 1731 | (long)cs->kvm_run->psw_addr); |
0e60a699 AG |
1732 | switch (icpt_code) { |
1733 | case ICPT_INSTRUCTION: | |
b30f4dfb | 1734 | r = handle_instruction(cpu, run); |
0e60a699 | 1735 | break; |
6449a41a TH |
1736 | case ICPT_PROGRAM: |
1737 | unmanageable_intercept(cpu, "program interrupt", | |
1738 | offsetof(LowCore, program_new_psw)); | |
1739 | r = EXCP_HALTED; | |
1740 | break; | |
a2689242 TH |
1741 | case ICPT_EXT_INT: |
1742 | unmanageable_intercept(cpu, "external interrupt", | |
1743 | offsetof(LowCore, external_new_psw)); | |
1744 | r = EXCP_HALTED; | |
1745 | break; | |
0e60a699 | 1746 | case ICPT_WAITPSW: |
08eb8c85 | 1747 | /* disabled wait, since enabled wait is handled in kernel */ |
eb24f7c6 DH |
1748 | cpu_synchronize_state(cs); |
1749 | if (s390_cpu_halt(cpu) == 0) { | |
08eb8c85 CB |
1750 | if (is_special_wait_psw(cs)) { |
1751 | qemu_system_shutdown_request(); | |
1752 | } else { | |
a2689242 | 1753 | guest_panicked(); |
08eb8c85 | 1754 | } |
eca3ed03 CB |
1755 | } |
1756 | r = EXCP_HALTED; | |
1757 | break; | |
854e42f3 | 1758 | case ICPT_CPU_STOP: |
eb24f7c6 | 1759 | if (s390_cpu_set_state(CPU_STATE_STOPPED, cpu) == 0) { |
854e42f3 CB |
1760 | qemu_system_shutdown_request(); |
1761 | } | |
18ff9494 DH |
1762 | if (cpu->env.sigp_order == SIGP_STOP_STORE_STATUS) { |
1763 | kvm_s390_store_status(cpu, KVM_S390_STORE_STATUS_DEF_ADDR, | |
1764 | true); | |
1765 | } | |
1766 | cpu->env.sigp_order = 0; | |
854e42f3 | 1767 | r = EXCP_HALTED; |
0e60a699 AG |
1768 | break; |
1769 | case ICPT_SOFT_INTERCEPT: | |
1770 | fprintf(stderr, "KVM unimplemented icpt SOFT\n"); | |
1771 | exit(1); | |
1772 | break; | |
0e60a699 AG |
1773 | case ICPT_IO: |
1774 | fprintf(stderr, "KVM unimplemented icpt IO\n"); | |
1775 | exit(1); | |
1776 | break; | |
1777 | default: | |
1778 | fprintf(stderr, "Unknown intercept code: %d\n", icpt_code); | |
1779 | exit(1); | |
1780 | break; | |
1781 | } | |
1782 | ||
1783 | return r; | |
1784 | } | |
1785 | ||
09b99878 CH |
1786 | static int handle_tsch(S390CPU *cpu) |
1787 | { | |
09b99878 CH |
1788 | CPUState *cs = CPU(cpu); |
1789 | struct kvm_run *run = cs->kvm_run; | |
1790 | int ret; | |
1791 | ||
44c68de0 | 1792 | cpu_synchronize_state(cs); |
3474b679 | 1793 | |
653b0809 TH |
1794 | ret = ioinst_handle_tsch(cpu, cpu->env.regs[1], run->s390_tsch.ipb); |
1795 | if (ret < 0) { | |
09b99878 CH |
1796 | /* |
1797 | * Failure. | |
1798 | * If an I/O interrupt had been dequeued, we have to reinject it. | |
1799 | */ | |
1800 | if (run->s390_tsch.dequeued) { | |
de13d216 CH |
1801 | kvm_s390_io_interrupt(run->s390_tsch.subchannel_id, |
1802 | run->s390_tsch.subchannel_nr, | |
1803 | run->s390_tsch.io_int_parm, | |
1804 | run->s390_tsch.io_int_word); | |
09b99878 CH |
1805 | } |
1806 | ret = 0; | |
1807 | } | |
1808 | return ret; | |
1809 | } | |
1810 | ||
6cb1e49d | 1811 | static void insert_stsi_3_2_2(S390CPU *cpu, __u64 addr, uint8_t ar) |
f07177a5 ET |
1812 | { |
1813 | struct sysib_322 sysib; | |
1814 | int del; | |
1815 | ||
6cb1e49d | 1816 | if (s390_cpu_virt_mem_read(cpu, addr, ar, &sysib, sizeof(sysib))) { |
f07177a5 ET |
1817 | return; |
1818 | } | |
1819 | /* Shift the stack of Extended Names to prepare for our own data */ | |
1820 | memmove(&sysib.ext_names[1], &sysib.ext_names[0], | |
1821 | sizeof(sysib.ext_names[0]) * (sysib.count - 1)); | |
1822 | /* First virt level, that doesn't provide Ext Names delimits stack. It is | |
1823 | * assumed it's not capable of managing Extended Names for lower levels. | |
1824 | */ | |
1825 | for (del = 1; del < sysib.count; del++) { | |
1826 | if (!sysib.vm[del].ext_name_encoding || !sysib.ext_names[del][0]) { | |
1827 | break; | |
1828 | } | |
1829 | } | |
1830 | if (del < sysib.count) { | |
1831 | memset(sysib.ext_names[del], 0, | |
1832 | sizeof(sysib.ext_names[0]) * (sysib.count - del)); | |
1833 | } | |
1834 | /* Insert short machine name in EBCDIC, padded with blanks */ | |
1835 | if (qemu_name) { | |
1836 | memset(sysib.vm[0].name, 0x40, sizeof(sysib.vm[0].name)); | |
1837 | ebcdic_put(sysib.vm[0].name, qemu_name, MIN(sizeof(sysib.vm[0].name), | |
1838 | strlen(qemu_name))); | |
1839 | } | |
1840 | sysib.vm[0].ext_name_encoding = 2; /* 2 = UTF-8 */ | |
1841 | memset(sysib.ext_names[0], 0, sizeof(sysib.ext_names[0])); | |
1842 | /* If hypervisor specifies zero Extended Name in STSI322 SYSIB, it's | |
1843 | * considered by s390 as not capable of providing any Extended Name. | |
1844 | * Therefore if no name was specified on qemu invocation, we go with the | |
1845 | * same "KVMguest" default, which KVM has filled into short name field. | |
1846 | */ | |
1847 | if (qemu_name) { | |
1848 | strncpy((char *)sysib.ext_names[0], qemu_name, | |
1849 | sizeof(sysib.ext_names[0])); | |
1850 | } else { | |
1851 | strcpy((char *)sysib.ext_names[0], "KVMguest"); | |
1852 | } | |
1853 | /* Insert UUID */ | |
1854 | memcpy(sysib.vm[0].uuid, qemu_uuid, sizeof(sysib.vm[0].uuid)); | |
1855 | ||
6cb1e49d | 1856 | s390_cpu_virt_mem_write(cpu, addr, ar, &sysib, sizeof(sysib)); |
f07177a5 ET |
1857 | } |
1858 | ||
1859 | static int handle_stsi(S390CPU *cpu) | |
1860 | { | |
1861 | CPUState *cs = CPU(cpu); | |
1862 | struct kvm_run *run = cs->kvm_run; | |
1863 | ||
1864 | switch (run->s390_stsi.fc) { | |
1865 | case 3: | |
1866 | if (run->s390_stsi.sel1 != 2 || run->s390_stsi.sel2 != 2) { | |
1867 | return 0; | |
1868 | } | |
1869 | /* Only sysib 3.2.2 needs post-handling for now. */ | |
6cb1e49d | 1870 | insert_stsi_3_2_2(cpu, run->s390_stsi.addr, run->s390_stsi.ar); |
f07177a5 ET |
1871 | return 0; |
1872 | default: | |
1873 | return 0; | |
1874 | } | |
1875 | } | |
1876 | ||
8c012449 DH |
1877 | static int kvm_arch_handle_debug_exit(S390CPU *cpu) |
1878 | { | |
770a6379 DH |
1879 | CPUState *cs = CPU(cpu); |
1880 | struct kvm_run *run = cs->kvm_run; | |
1881 | ||
1882 | int ret = 0; | |
1883 | struct kvm_debug_exit_arch *arch_info = &run->debug.arch; | |
1884 | ||
1885 | switch (arch_info->type) { | |
1886 | case KVM_HW_WP_WRITE: | |
1887 | if (find_hw_breakpoint(arch_info->addr, -1, arch_info->type)) { | |
1888 | cs->watchpoint_hit = &hw_watchpoint; | |
1889 | hw_watchpoint.vaddr = arch_info->addr; | |
1890 | hw_watchpoint.flags = BP_MEM_WRITE; | |
1891 | ret = EXCP_DEBUG; | |
1892 | } | |
1893 | break; | |
1894 | case KVM_HW_BP: | |
1895 | if (find_hw_breakpoint(arch_info->addr, -1, arch_info->type)) { | |
1896 | ret = EXCP_DEBUG; | |
1897 | } | |
1898 | break; | |
1899 | case KVM_SINGLESTEP: | |
1900 | if (cs->singlestep_enabled) { | |
1901 | ret = EXCP_DEBUG; | |
1902 | } | |
1903 | break; | |
1904 | default: | |
1905 | ret = -ENOSYS; | |
1906 | } | |
1907 | ||
1908 | return ret; | |
8c012449 DH |
1909 | } |
1910 | ||
20d695a9 | 1911 | int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run) |
0e60a699 | 1912 | { |
20d695a9 | 1913 | S390CPU *cpu = S390_CPU(cs); |
0e60a699 AG |
1914 | int ret = 0; |
1915 | ||
1916 | switch (run->exit_reason) { | |
1917 | case KVM_EXIT_S390_SIEIC: | |
1bc22652 | 1918 | ret = handle_intercept(cpu); |
0e60a699 AG |
1919 | break; |
1920 | case KVM_EXIT_S390_RESET: | |
e91e972c | 1921 | s390_reipl_request(); |
0e60a699 | 1922 | break; |
09b99878 CH |
1923 | case KVM_EXIT_S390_TSCH: |
1924 | ret = handle_tsch(cpu); | |
1925 | break; | |
f07177a5 ET |
1926 | case KVM_EXIT_S390_STSI: |
1927 | ret = handle_stsi(cpu); | |
1928 | break; | |
8c012449 DH |
1929 | case KVM_EXIT_DEBUG: |
1930 | ret = kvm_arch_handle_debug_exit(cpu); | |
1931 | break; | |
0e60a699 AG |
1932 | default: |
1933 | fprintf(stderr, "Unknown KVM exit: %d\n", run->exit_reason); | |
1934 | break; | |
1935 | } | |
1936 | ||
bb4ea393 JK |
1937 | if (ret == 0) { |
1938 | ret = EXCP_INTERRUPT; | |
bb4ea393 | 1939 | } |
0e60a699 AG |
1940 | return ret; |
1941 | } | |
4513d923 | 1942 | |
20d695a9 | 1943 | bool kvm_arch_stop_on_emulation_error(CPUState *cpu) |
4513d923 GN |
1944 | { |
1945 | return true; | |
1946 | } | |
a1b87fe0 | 1947 | |
20d695a9 | 1948 | int kvm_arch_on_sigbus_vcpu(CPUState *cpu, int code, void *addr) |
a1b87fe0 JK |
1949 | { |
1950 | return 1; | |
1951 | } | |
1952 | ||
1953 | int kvm_arch_on_sigbus(int code, void *addr) | |
1954 | { | |
1955 | return 1; | |
1956 | } | |
09b99878 | 1957 | |
de13d216 | 1958 | void kvm_s390_io_interrupt(uint16_t subchannel_id, |
09b99878 CH |
1959 | uint16_t subchannel_nr, uint32_t io_int_parm, |
1960 | uint32_t io_int_word) | |
1961 | { | |
de13d216 CH |
1962 | struct kvm_s390_irq irq = { |
1963 | .u.io.subchannel_id = subchannel_id, | |
1964 | .u.io.subchannel_nr = subchannel_nr, | |
1965 | .u.io.io_int_parm = io_int_parm, | |
1966 | .u.io.io_int_word = io_int_word, | |
1967 | }; | |
09b99878 | 1968 | |
7e749462 | 1969 | if (io_int_word & IO_INT_WORD_AI) { |
de13d216 | 1970 | irq.type = KVM_S390_INT_IO(1, 0, 0, 0); |
7e749462 | 1971 | } else { |
de13d216 | 1972 | irq.type = ((subchannel_id & 0xff00) << 24) | |
7e749462 CH |
1973 | ((subchannel_id & 0x00060) << 22) | (subchannel_nr << 16); |
1974 | } | |
de13d216 | 1975 | kvm_s390_floating_interrupt(&irq); |
09b99878 CH |
1976 | } |
1977 | ||
de13d216 | 1978 | void kvm_s390_crw_mchk(void) |
09b99878 | 1979 | { |
de13d216 CH |
1980 | struct kvm_s390_irq irq = { |
1981 | .type = KVM_S390_MCHK, | |
1982 | .u.mchk.cr14 = 1 << 28, | |
f0d4dc18 | 1983 | .u.mchk.mcic = 0x00400f1d40330000ULL, |
de13d216 CH |
1984 | }; |
1985 | kvm_s390_floating_interrupt(&irq); | |
09b99878 CH |
1986 | } |
1987 | ||
1988 | void kvm_s390_enable_css_support(S390CPU *cpu) | |
1989 | { | |
09b99878 CH |
1990 | int r; |
1991 | ||
1992 | /* Activate host kernel channel subsystem support. */ | |
e080f0fd | 1993 | r = kvm_vcpu_enable_cap(CPU(cpu), KVM_CAP_S390_CSS_SUPPORT, 0); |
09b99878 CH |
1994 | assert(r == 0); |
1995 | } | |
48475e14 AK |
1996 | |
1997 | void kvm_arch_init_irq_routing(KVMState *s) | |
1998 | { | |
d426d9fb CH |
1999 | /* |
2000 | * Note that while irqchip capabilities generally imply that cpustates | |
2001 | * are handled in-kernel, it is not true for s390 (yet); therefore, we | |
2002 | * have to override the common code kvm_halt_in_kernel_allowed setting. | |
2003 | */ | |
2004 | if (kvm_check_extension(s, KVM_CAP_IRQ_ROUTING)) { | |
d426d9fb CH |
2005 | kvm_gsi_routing_allowed = true; |
2006 | kvm_halt_in_kernel_allowed = false; | |
2007 | } | |
48475e14 | 2008 | } |
b4436a0b | 2009 | |
cc3ac9c4 CH |
2010 | int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch, |
2011 | int vq, bool assign) | |
b4436a0b CH |
2012 | { |
2013 | struct kvm_ioeventfd kick = { | |
2014 | .flags = KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY | | |
2015 | KVM_IOEVENTFD_FLAG_DATAMATCH, | |
cc3ac9c4 | 2016 | .fd = event_notifier_get_fd(notifier), |
b4436a0b CH |
2017 | .datamatch = vq, |
2018 | .addr = sch, | |
2019 | .len = 8, | |
2020 | }; | |
2021 | if (!kvm_check_extension(kvm_state, KVM_CAP_IOEVENTFD)) { | |
2022 | return -ENOSYS; | |
2023 | } | |
2024 | if (!assign) { | |
2025 | kick.flags |= KVM_IOEVENTFD_FLAG_DEASSIGN; | |
2026 | } | |
2027 | return kvm_vm_ioctl(kvm_state, KVM_IOEVENTFD, &kick); | |
2028 | } | |
1def6656 MR |
2029 | |
2030 | int kvm_s390_get_memslot_count(KVMState *s) | |
2031 | { | |
2032 | return kvm_check_extension(s, KVM_CAP_NR_MEMSLOTS); | |
2033 | } | |
c9e659c9 DH |
2034 | |
2035 | int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state) | |
2036 | { | |
2037 | struct kvm_mp_state mp_state = {}; | |
2038 | int ret; | |
2039 | ||
2040 | /* the kvm part might not have been initialized yet */ | |
2041 | if (CPU(cpu)->kvm_state == NULL) { | |
2042 | return 0; | |
2043 | } | |
2044 | ||
2045 | switch (cpu_state) { | |
2046 | case CPU_STATE_STOPPED: | |
2047 | mp_state.mp_state = KVM_MP_STATE_STOPPED; | |
2048 | break; | |
2049 | case CPU_STATE_CHECK_STOP: | |
2050 | mp_state.mp_state = KVM_MP_STATE_CHECK_STOP; | |
2051 | break; | |
2052 | case CPU_STATE_OPERATING: | |
2053 | mp_state.mp_state = KVM_MP_STATE_OPERATING; | |
2054 | break; | |
2055 | case CPU_STATE_LOAD: | |
2056 | mp_state.mp_state = KVM_MP_STATE_LOAD; | |
2057 | break; | |
2058 | default: | |
2059 | error_report("Requested CPU state is not a valid S390 CPU state: %u", | |
2060 | cpu_state); | |
2061 | exit(1); | |
2062 | } | |
2063 | ||
2064 | ret = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_MP_STATE, &mp_state); | |
2065 | if (ret) { | |
2066 | trace_kvm_failed_cpu_state_set(CPU(cpu)->cpu_index, cpu_state, | |
2067 | strerror(-ret)); | |
2068 | } | |
2069 | ||
2070 | return ret; | |
2071 | } | |
9e03a040 | 2072 | |
3cda44f7 JF |
2073 | void kvm_s390_vcpu_interrupt_pre_save(S390CPU *cpu) |
2074 | { | |
2075 | struct kvm_s390_irq_state irq_state; | |
2076 | CPUState *cs = CPU(cpu); | |
2077 | int32_t bytes; | |
2078 | ||
2079 | if (!kvm_check_extension(kvm_state, KVM_CAP_S390_IRQ_STATE)) { | |
2080 | return; | |
2081 | } | |
2082 | ||
2083 | irq_state.buf = (uint64_t) cpu->irqstate; | |
2084 | irq_state.len = VCPU_IRQ_BUF_SIZE; | |
2085 | ||
2086 | bytes = kvm_vcpu_ioctl(cs, KVM_S390_GET_IRQ_STATE, &irq_state); | |
2087 | if (bytes < 0) { | |
2088 | cpu->irqstate_saved_size = 0; | |
2089 | error_report("Migration of interrupt state failed"); | |
2090 | return; | |
2091 | } | |
2092 | ||
2093 | cpu->irqstate_saved_size = bytes; | |
2094 | } | |
2095 | ||
2096 | int kvm_s390_vcpu_interrupt_post_load(S390CPU *cpu) | |
2097 | { | |
2098 | CPUState *cs = CPU(cpu); | |
2099 | struct kvm_s390_irq_state irq_state; | |
2100 | int r; | |
2101 | ||
2102 | if (!kvm_check_extension(kvm_state, KVM_CAP_S390_IRQ_STATE)) { | |
2103 | return -ENOSYS; | |
2104 | } | |
2105 | ||
2106 | if (cpu->irqstate_saved_size == 0) { | |
2107 | return 0; | |
2108 | } | |
2109 | irq_state.buf = (uint64_t) cpu->irqstate; | |
2110 | irq_state.len = cpu->irqstate_saved_size; | |
2111 | ||
2112 | r = kvm_vcpu_ioctl(cs, KVM_S390_SET_IRQ_STATE, &irq_state); | |
2113 | if (r) { | |
2114 | error_report("Setting interrupt state failed %d", r); | |
2115 | } | |
2116 | return r; | |
2117 | } | |
2118 | ||
9e03a040 FB |
2119 | int kvm_arch_fixup_msi_route(struct kvm_irq_routing_entry *route, |
2120 | uint64_t address, uint32_t data) | |
2121 | { | |
2122 | S390PCIBusDevice *pbdev; | |
2123 | uint32_t fid = data >> ZPCI_MSI_VEC_BITS; | |
2124 | uint32_t vec = data & ZPCI_MSI_VEC_MASK; | |
2125 | ||
2126 | pbdev = s390_pci_find_dev_by_fid(fid); | |
2127 | if (!pbdev) { | |
2128 | DPRINTF("add_msi_route no dev\n"); | |
2129 | return -ENODEV; | |
2130 | } | |
2131 | ||
2132 | pbdev->routes.adapter.ind_offset = vec; | |
2133 | ||
2134 | route->type = KVM_IRQ_ROUTING_S390_ADAPTER; | |
2135 | route->flags = 0; | |
2136 | route->u.adapter.summary_addr = pbdev->routes.adapter.summary_addr; | |
2137 | route->u.adapter.ind_addr = pbdev->routes.adapter.ind_addr; | |
2138 | route->u.adapter.summary_offset = pbdev->routes.adapter.summary_offset; | |
2139 | route->u.adapter.ind_offset = pbdev->routes.adapter.ind_offset; | |
2140 | route->u.adapter.adapter_id = pbdev->routes.adapter.adapter_id; | |
2141 | return 0; | |
2142 | } |