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10ec5117 AG |
1 | /* |
2 | * S/390 helper routines | |
3 | * | |
defb0e31 | 4 | * Copyright (c) 2009 Ulrich Hecht |
10ec5117 AG |
5 | * Copyright (c) 2009 Alexander Graf |
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 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
70539e18 | 18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
10ec5117 AG |
19 | */ |
20 | ||
3e457172 | 21 | #include "cpu.h" |
9abf567d CB |
22 | #include "memory.h" |
23 | #include "cputlb.h" | |
3e457172 | 24 | #include "dyngen-exec.h" |
defb0e31 | 25 | #include "host-utils.h" |
3208afbe | 26 | #include "helper.h" |
defb0e31 AG |
27 | #include <string.h> |
28 | #include "kvm.h" | |
29 | #include "qemu-timer.h" | |
af2be207 JK |
30 | #ifdef CONFIG_KVM |
31 | #include <linux/kvm.h> | |
32 | #endif | |
10ec5117 | 33 | |
71e47088 | 34 | #if !defined(CONFIG_USER_ONLY) |
1864b94a AG |
35 | #include "sysemu.h" |
36 | #endif | |
37 | ||
10ec5117 AG |
38 | /*****************************************************************************/ |
39 | /* Softmmu support */ | |
71e47088 | 40 | #if !defined(CONFIG_USER_ONLY) |
3e457172 | 41 | #include "softmmu_exec.h" |
10ec5117 AG |
42 | |
43 | #define MMUSUFFIX _mmu | |
44 | ||
45 | #define SHIFT 0 | |
46 | #include "softmmu_template.h" | |
47 | ||
48 | #define SHIFT 1 | |
49 | #include "softmmu_template.h" | |
50 | ||
51 | #define SHIFT 2 | |
52 | #include "softmmu_template.h" | |
53 | ||
54 | #define SHIFT 3 | |
55 | #include "softmmu_template.h" | |
56 | ||
57 | /* try to fill the TLB and return an exception if error. If retaddr is | |
58 | NULL, it means that the function was called in C code (i.e. not | |
59 | from generated code or from helper.c) */ | |
60 | /* XXX: fix it to restore all registers */ | |
a4e3ad19 | 61 | void tlb_fill(CPUS390XState *env1, target_ulong addr, int is_write, int mmu_idx, |
20503968 | 62 | uintptr_t retaddr) |
10ec5117 AG |
63 | { |
64 | TranslationBlock *tb; | |
a4e3ad19 | 65 | CPUS390XState *saved_env; |
10ec5117 AG |
66 | int ret; |
67 | ||
10ec5117 | 68 | saved_env = env; |
bccd9ec5 | 69 | env = env1; |
97b348e7 | 70 | ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx); |
10ec5117 AG |
71 | if (unlikely(ret != 0)) { |
72 | if (likely(retaddr)) { | |
73 | /* now we have a real cpu fault */ | |
20503968 | 74 | tb = tb_find_pc(retaddr); |
10ec5117 AG |
75 | if (likely(tb)) { |
76 | /* the PC is inside the translated code. It means that we have | |
77 | a virtual CPU fault */ | |
20503968 | 78 | cpu_restore_state(tb, env, retaddr); |
10ec5117 AG |
79 | } |
80 | } | |
1162c041 | 81 | cpu_loop_exit(env); |
10ec5117 AG |
82 | } |
83 | env = saved_env; | |
84 | } | |
85 | ||
86 | #endif | |
d5a43964 | 87 | |
defb0e31 AG |
88 | /* #define DEBUG_HELPER */ |
89 | #ifdef DEBUG_HELPER | |
90 | #define HELPER_LOG(x...) qemu_log(x) | |
91 | #else | |
92 | #define HELPER_LOG(x...) | |
93 | #endif | |
94 | ||
95 | /* raise an exception */ | |
96 | void HELPER(exception)(uint32_t excp) | |
97 | { | |
71e47088 | 98 | HELPER_LOG("%s: exception %d\n", __func__, excp); |
defb0e31 | 99 | env->exception_index = excp; |
1162c041 | 100 | cpu_loop_exit(env); |
defb0e31 AG |
101 | } |
102 | ||
103 | #ifndef CONFIG_USER_ONLY | |
a4e3ad19 | 104 | static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest, |
defb0e31 AG |
105 | uint8_t byte) |
106 | { | |
107 | target_phys_addr_t dest_phys; | |
108 | target_phys_addr_t len = l; | |
109 | void *dest_p; | |
110 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
111 | int flags; | |
112 | ||
113 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { | |
114 | stb(dest, byte); | |
115 | cpu_abort(env, "should never reach here"); | |
116 | } | |
117 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
118 | ||
119 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
120 | ||
121 | memset(dest_p, byte, len); | |
122 | ||
123 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
124 | } | |
125 | ||
a4e3ad19 | 126 | static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest, |
defb0e31 AG |
127 | uint64_t src) |
128 | { | |
129 | target_phys_addr_t dest_phys; | |
130 | target_phys_addr_t src_phys; | |
131 | target_phys_addr_t len = l; | |
132 | void *dest_p; | |
133 | void *src_p; | |
134 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
135 | int flags; | |
136 | ||
137 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { | |
138 | stb(dest, 0); | |
139 | cpu_abort(env, "should never reach here"); | |
140 | } | |
141 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
142 | ||
143 | if (mmu_translate(env, src, 0, asc, &src_phys, &flags)) { | |
144 | ldub(src); | |
145 | cpu_abort(env, "should never reach here"); | |
146 | } | |
147 | src_phys |= src & ~TARGET_PAGE_MASK; | |
148 | ||
149 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
150 | src_p = cpu_physical_memory_map(src_phys, &len, 0); | |
151 | ||
152 | memmove(dest_p, src_p, len); | |
153 | ||
154 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
155 | cpu_physical_memory_unmap(src_p, 0, len, len); | |
156 | } | |
157 | #endif | |
158 | ||
159 | /* and on array */ | |
160 | uint32_t HELPER(nc)(uint32_t l, uint64_t dest, uint64_t src) | |
161 | { | |
162 | int i; | |
163 | unsigned char x; | |
164 | uint32_t cc = 0; | |
165 | ||
166 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
71e47088 | 167 | __func__, l, dest, src); |
defb0e31 AG |
168 | for (i = 0; i <= l; i++) { |
169 | x = ldub(dest + i) & ldub(src + i); | |
170 | if (x) { | |
171 | cc = 1; | |
172 | } | |
173 | stb(dest + i, x); | |
174 | } | |
175 | return cc; | |
176 | } | |
177 | ||
178 | /* xor on array */ | |
179 | uint32_t HELPER(xc)(uint32_t l, uint64_t dest, uint64_t src) | |
180 | { | |
181 | int i; | |
182 | unsigned char x; | |
183 | uint32_t cc = 0; | |
184 | ||
185 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
71e47088 | 186 | __func__, l, dest, src); |
defb0e31 AG |
187 | |
188 | #ifndef CONFIG_USER_ONLY | |
189 | /* xor with itself is the same as memset(0) */ | |
190 | if ((l > 32) && (src == dest) && | |
191 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) { | |
192 | mvc_fast_memset(env, l + 1, dest, 0); | |
193 | return 0; | |
194 | } | |
195 | #else | |
196 | if (src == dest) { | |
197 | memset(g2h(dest), 0, l + 1); | |
198 | return 0; | |
199 | } | |
200 | #endif | |
201 | ||
202 | for (i = 0; i <= l; i++) { | |
203 | x = ldub(dest + i) ^ ldub(src + i); | |
204 | if (x) { | |
205 | cc = 1; | |
206 | } | |
207 | stb(dest + i, x); | |
208 | } | |
209 | return cc; | |
210 | } | |
211 | ||
212 | /* or on array */ | |
213 | uint32_t HELPER(oc)(uint32_t l, uint64_t dest, uint64_t src) | |
214 | { | |
215 | int i; | |
216 | unsigned char x; | |
217 | uint32_t cc = 0; | |
218 | ||
219 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
71e47088 | 220 | __func__, l, dest, src); |
defb0e31 AG |
221 | for (i = 0; i <= l; i++) { |
222 | x = ldub(dest + i) | ldub(src + i); | |
223 | if (x) { | |
224 | cc = 1; | |
225 | } | |
226 | stb(dest + i, x); | |
227 | } | |
228 | return cc; | |
229 | } | |
230 | ||
231 | /* memmove */ | |
232 | void HELPER(mvc)(uint32_t l, uint64_t dest, uint64_t src) | |
233 | { | |
234 | int i = 0; | |
235 | int x = 0; | |
236 | uint32_t l_64 = (l + 1) / 8; | |
237 | ||
238 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
71e47088 | 239 | __func__, l, dest, src); |
defb0e31 AG |
240 | |
241 | #ifndef CONFIG_USER_ONLY | |
242 | if ((l > 32) && | |
243 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) && | |
244 | (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) { | |
245 | if (dest == (src + 1)) { | |
246 | mvc_fast_memset(env, l + 1, dest, ldub(src)); | |
247 | return; | |
248 | } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { | |
249 | mvc_fast_memmove(env, l + 1, dest, src); | |
250 | return; | |
251 | } | |
252 | } | |
253 | #else | |
254 | if (dest == (src + 1)) { | |
255 | memset(g2h(dest), ldub(src), l + 1); | |
256 | return; | |
257 | } else { | |
258 | memmove(g2h(dest), g2h(src), l + 1); | |
259 | return; | |
260 | } | |
261 | #endif | |
262 | ||
263 | /* handle the parts that fit into 8-byte loads/stores */ | |
264 | if (dest != (src + 1)) { | |
265 | for (i = 0; i < l_64; i++) { | |
266 | stq(dest + x, ldq(src + x)); | |
267 | x += 8; | |
268 | } | |
269 | } | |
270 | ||
271 | /* slow version crossing pages with byte accesses */ | |
272 | for (i = x; i <= l; i++) { | |
273 | stb(dest + i, ldub(src + i)); | |
274 | } | |
275 | } | |
276 | ||
277 | /* compare unsigned byte arrays */ | |
278 | uint32_t HELPER(clc)(uint32_t l, uint64_t s1, uint64_t s2) | |
279 | { | |
280 | int i; | |
71e47088 | 281 | unsigned char x, y; |
defb0e31 | 282 | uint32_t cc; |
71e47088 | 283 | |
defb0e31 | 284 | HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n", |
71e47088 | 285 | __func__, l, s1, s2); |
defb0e31 AG |
286 | for (i = 0; i <= l; i++) { |
287 | x = ldub(s1 + i); | |
288 | y = ldub(s2 + i); | |
289 | HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y); | |
290 | if (x < y) { | |
291 | cc = 1; | |
292 | goto done; | |
293 | } else if (x > y) { | |
294 | cc = 2; | |
295 | goto done; | |
296 | } | |
297 | } | |
298 | cc = 0; | |
71e47088 | 299 | done: |
defb0e31 AG |
300 | HELPER_LOG("\n"); |
301 | return cc; | |
302 | } | |
303 | ||
304 | /* compare logical under mask */ | |
305 | uint32_t HELPER(clm)(uint32_t r1, uint32_t mask, uint64_t addr) | |
306 | { | |
71e47088 | 307 | uint8_t r, d; |
defb0e31 | 308 | uint32_t cc; |
71e47088 BS |
309 | |
310 | HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1, | |
defb0e31 AG |
311 | mask, addr); |
312 | cc = 0; | |
313 | while (mask) { | |
314 | if (mask & 8) { | |
315 | d = ldub(addr); | |
316 | r = (r1 & 0xff000000UL) >> 24; | |
317 | HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d, | |
71e47088 | 318 | addr); |
defb0e31 AG |
319 | if (r < d) { |
320 | cc = 1; | |
321 | break; | |
322 | } else if (r > d) { | |
323 | cc = 2; | |
324 | break; | |
325 | } | |
326 | addr++; | |
327 | } | |
328 | mask = (mask << 1) & 0xf; | |
329 | r1 <<= 8; | |
330 | } | |
331 | HELPER_LOG("\n"); | |
332 | return cc; | |
333 | } | |
334 | ||
335 | /* store character under mask */ | |
336 | void HELPER(stcm)(uint32_t r1, uint32_t mask, uint64_t addr) | |
337 | { | |
338 | uint8_t r; | |
71e47088 BS |
339 | |
340 | HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%lx\n", __func__, r1, mask, | |
defb0e31 AG |
341 | addr); |
342 | while (mask) { | |
343 | if (mask & 8) { | |
344 | r = (r1 & 0xff000000UL) >> 24; | |
345 | stb(addr, r); | |
346 | HELPER_LOG("mask 0x%x %02x (0x%lx) ", mask, r, addr); | |
347 | addr++; | |
348 | } | |
349 | mask = (mask << 1) & 0xf; | |
350 | r1 <<= 8; | |
351 | } | |
352 | HELPER_LOG("\n"); | |
353 | } | |
354 | ||
defb0e31 AG |
355 | static inline uint64_t get_address(int x2, int b2, int d2) |
356 | { | |
357 | uint64_t r = d2; | |
358 | ||
359 | if (x2) { | |
360 | r += env->regs[x2]; | |
361 | } | |
362 | ||
363 | if (b2) { | |
364 | r += env->regs[b2]; | |
365 | } | |
366 | ||
367 | /* 31-Bit mode */ | |
368 | if (!(env->psw.mask & PSW_MASK_64)) { | |
369 | r &= 0x7fffffff; | |
370 | } | |
371 | ||
372 | return r; | |
373 | } | |
374 | ||
375 | static inline uint64_t get_address_31fix(int reg) | |
376 | { | |
377 | uint64_t r = env->regs[reg]; | |
378 | ||
379 | /* 31-Bit mode */ | |
380 | if (!(env->psw.mask & PSW_MASK_64)) { | |
381 | r &= 0x7fffffff; | |
382 | } | |
383 | ||
384 | return r; | |
385 | } | |
386 | ||
387 | /* search string (c is byte to search, r2 is string, r1 end of string) */ | |
388 | uint32_t HELPER(srst)(uint32_t c, uint32_t r1, uint32_t r2) | |
389 | { | |
390 | uint64_t i; | |
391 | uint32_t cc = 2; | |
392 | uint64_t str = get_address_31fix(r2); | |
393 | uint64_t end = get_address_31fix(r1); | |
394 | ||
71e47088 | 395 | HELPER_LOG("%s: c %d *r1 0x%" PRIx64 " *r2 0x%" PRIx64 "\n", __func__, |
defb0e31 AG |
396 | c, env->regs[r1], env->regs[r2]); |
397 | ||
398 | for (i = str; i != end; i++) { | |
399 | if (ldub(i) == c) { | |
400 | env->regs[r1] = i; | |
401 | cc = 1; | |
402 | break; | |
403 | } | |
404 | } | |
405 | ||
406 | return cc; | |
407 | } | |
408 | ||
409 | /* unsigned string compare (c is string terminator) */ | |
410 | uint32_t HELPER(clst)(uint32_t c, uint32_t r1, uint32_t r2) | |
411 | { | |
412 | uint64_t s1 = get_address_31fix(r1); | |
413 | uint64_t s2 = get_address_31fix(r2); | |
414 | uint8_t v1, v2; | |
415 | uint32_t cc; | |
71e47088 | 416 | |
defb0e31 AG |
417 | c = c & 0xff; |
418 | #ifdef CONFIG_USER_ONLY | |
419 | if (!c) { | |
420 | HELPER_LOG("%s: comparing '%s' and '%s'\n", | |
71e47088 | 421 | __func__, (char *)g2h(s1), (char *)g2h(s2)); |
defb0e31 AG |
422 | } |
423 | #endif | |
424 | for (;;) { | |
425 | v1 = ldub(s1); | |
426 | v2 = ldub(s2); | |
427 | if ((v1 == c || v2 == c) || (v1 != v2)) { | |
428 | break; | |
429 | } | |
430 | s1++; | |
431 | s2++; | |
432 | } | |
433 | ||
434 | if (v1 == v2) { | |
435 | cc = 0; | |
436 | } else { | |
437 | cc = (v1 < v2) ? 1 : 2; | |
438 | /* FIXME: 31-bit mode! */ | |
439 | env->regs[r1] = s1; | |
440 | env->regs[r2] = s2; | |
441 | } | |
442 | return cc; | |
443 | } | |
444 | ||
445 | /* move page */ | |
446 | void HELPER(mvpg)(uint64_t r0, uint64_t r1, uint64_t r2) | |
447 | { | |
448 | /* XXX missing r0 handling */ | |
449 | #ifdef CONFIG_USER_ONLY | |
450 | int i; | |
451 | ||
452 | for (i = 0; i < TARGET_PAGE_SIZE; i++) { | |
453 | stb(r1 + i, ldub(r2 + i)); | |
454 | } | |
455 | #else | |
456 | mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2); | |
457 | #endif | |
458 | } | |
459 | ||
460 | /* string copy (c is string terminator) */ | |
461 | void HELPER(mvst)(uint32_t c, uint32_t r1, uint32_t r2) | |
462 | { | |
463 | uint64_t dest = get_address_31fix(r1); | |
464 | uint64_t src = get_address_31fix(r2); | |
465 | uint8_t v; | |
71e47088 | 466 | |
defb0e31 AG |
467 | c = c & 0xff; |
468 | #ifdef CONFIG_USER_ONLY | |
469 | if (!c) { | |
71e47088 | 470 | HELPER_LOG("%s: copy '%s' to 0x%lx\n", __func__, (char *)g2h(src), |
defb0e31 AG |
471 | dest); |
472 | } | |
473 | #endif | |
474 | for (;;) { | |
475 | v = ldub(src); | |
476 | stb(dest, v); | |
477 | if (v == c) { | |
478 | break; | |
479 | } | |
480 | src++; | |
481 | dest++; | |
482 | } | |
483 | env->regs[r1] = dest; /* FIXME: 31-bit mode! */ | |
484 | } | |
485 | ||
486 | /* compare and swap 64-bit */ | |
487 | uint32_t HELPER(csg)(uint32_t r1, uint64_t a2, uint32_t r3) | |
488 | { | |
489 | /* FIXME: locking? */ | |
490 | uint32_t cc; | |
491 | uint64_t v2 = ldq(a2); | |
71e47088 | 492 | |
defb0e31 AG |
493 | if (env->regs[r1] == v2) { |
494 | cc = 0; | |
495 | stq(a2, env->regs[r3]); | |
496 | } else { | |
497 | cc = 1; | |
498 | env->regs[r1] = v2; | |
499 | } | |
500 | return cc; | |
501 | } | |
502 | ||
503 | /* compare double and swap 64-bit */ | |
504 | uint32_t HELPER(cdsg)(uint32_t r1, uint64_t a2, uint32_t r3) | |
505 | { | |
506 | /* FIXME: locking? */ | |
507 | uint32_t cc; | |
508 | uint64_t v2_hi = ldq(a2); | |
509 | uint64_t v2_lo = ldq(a2 + 8); | |
510 | uint64_t v1_hi = env->regs[r1]; | |
511 | uint64_t v1_lo = env->regs[r1 + 1]; | |
512 | ||
513 | if ((v1_hi == v2_hi) && (v1_lo == v2_lo)) { | |
514 | cc = 0; | |
515 | stq(a2, env->regs[r3]); | |
516 | stq(a2 + 8, env->regs[r3 + 1]); | |
517 | } else { | |
518 | cc = 1; | |
519 | env->regs[r1] = v2_hi; | |
520 | env->regs[r1 + 1] = v2_lo; | |
521 | } | |
522 | ||
523 | return cc; | |
524 | } | |
525 | ||
526 | /* compare and swap 32-bit */ | |
527 | uint32_t HELPER(cs)(uint32_t r1, uint64_t a2, uint32_t r3) | |
528 | { | |
529 | /* FIXME: locking? */ | |
530 | uint32_t cc; | |
defb0e31 | 531 | uint32_t v2 = ldl(a2); |
71e47088 BS |
532 | |
533 | HELPER_LOG("%s: r1 %d a2 0x%lx r3 %d\n", __func__, r1, a2, r3); | |
defb0e31 AG |
534 | if (((uint32_t)env->regs[r1]) == v2) { |
535 | cc = 0; | |
536 | stl(a2, (uint32_t)env->regs[r3]); | |
537 | } else { | |
538 | cc = 1; | |
539 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | v2; | |
540 | } | |
541 | return cc; | |
542 | } | |
543 | ||
544 | static uint32_t helper_icm(uint32_t r1, uint64_t address, uint32_t mask) | |
545 | { | |
546 | int pos = 24; /* top of the lower half of r1 */ | |
547 | uint64_t rmask = 0xff000000ULL; | |
548 | uint8_t val = 0; | |
549 | int ccd = 0; | |
550 | uint32_t cc = 0; | |
551 | ||
552 | while (mask) { | |
553 | if (mask & 8) { | |
554 | env->regs[r1] &= ~rmask; | |
555 | val = ldub(address); | |
556 | if ((val & 0x80) && !ccd) { | |
557 | cc = 1; | |
558 | } | |
559 | ccd = 1; | |
560 | if (val && cc == 0) { | |
561 | cc = 2; | |
562 | } | |
563 | env->regs[r1] |= (uint64_t)val << pos; | |
564 | address++; | |
565 | } | |
566 | mask = (mask << 1) & 0xf; | |
567 | pos -= 8; | |
568 | rmask >>= 8; | |
569 | } | |
570 | ||
571 | return cc; | |
572 | } | |
573 | ||
574 | /* execute instruction | |
575 | this instruction executes an insn modified with the contents of r1 | |
576 | it does not change the executed instruction in memory | |
577 | it does not change the program counter | |
578 | in other words: tricky... | |
579 | currently implemented by interpreting the cases it is most commonly used in | |
71e47088 | 580 | */ |
defb0e31 AG |
581 | uint32_t HELPER(ex)(uint32_t cc, uint64_t v1, uint64_t addr, uint64_t ret) |
582 | { | |
583 | uint16_t insn = lduw_code(addr); | |
71e47088 BS |
584 | |
585 | HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr, | |
586 | insn); | |
defb0e31 AG |
587 | if ((insn & 0xf0ff) == 0xd000) { |
588 | uint32_t l, insn2, b1, b2, d1, d2; | |
71e47088 | 589 | |
defb0e31 AG |
590 | l = v1 & 0xff; |
591 | insn2 = ldl_code(addr + 2); | |
592 | b1 = (insn2 >> 28) & 0xf; | |
593 | b2 = (insn2 >> 12) & 0xf; | |
594 | d1 = (insn2 >> 16) & 0xfff; | |
595 | d2 = insn2 & 0xfff; | |
596 | switch (insn & 0xf00) { | |
597 | case 0x200: | |
598 | helper_mvc(l, get_address(0, b1, d1), get_address(0, b2, d2)); | |
599 | break; | |
600 | case 0x500: | |
601 | cc = helper_clc(l, get_address(0, b1, d1), get_address(0, b2, d2)); | |
602 | break; | |
603 | case 0x700: | |
604 | cc = helper_xc(l, get_address(0, b1, d1), get_address(0, b2, d2)); | |
605 | break; | |
7d77793d AG |
606 | case 0xc00: |
607 | helper_tr(l, get_address(0, b1, d1), get_address(0, b2, d2)); | |
608 | break; | |
defb0e31 AG |
609 | default: |
610 | goto abort; | |
611 | break; | |
612 | } | |
613 | } else if ((insn & 0xff00) == 0x0a00) { | |
614 | /* supervisor call */ | |
71e47088 | 615 | HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff); |
defb0e31 | 616 | env->psw.addr = ret - 4; |
71e47088 | 617 | env->int_svc_code = (insn | v1) & 0xff; |
defb0e31 AG |
618 | env->int_svc_ilc = 4; |
619 | helper_exception(EXCP_SVC); | |
620 | } else if ((insn & 0xff00) == 0xbf00) { | |
621 | uint32_t insn2, r1, r3, b2, d2; | |
71e47088 | 622 | |
defb0e31 AG |
623 | insn2 = ldl_code(addr + 2); |
624 | r1 = (insn2 >> 20) & 0xf; | |
625 | r3 = (insn2 >> 16) & 0xf; | |
626 | b2 = (insn2 >> 12) & 0xf; | |
627 | d2 = insn2 & 0xfff; | |
628 | cc = helper_icm(r1, get_address(0, b2, d2), r3); | |
629 | } else { | |
71e47088 | 630 | abort: |
defb0e31 AG |
631 | cpu_abort(env, "EXECUTE on instruction prefix 0x%x not implemented\n", |
632 | insn); | |
633 | } | |
634 | return cc; | |
635 | } | |
636 | ||
defb0e31 AG |
637 | /* store character under mask high operates on the upper half of r1 */ |
638 | void HELPER(stcmh)(uint32_t r1, uint64_t address, uint32_t mask) | |
639 | { | |
640 | int pos = 56; /* top of the upper half of r1 */ | |
641 | ||
642 | while (mask) { | |
643 | if (mask & 8) { | |
644 | stb(address, (env->regs[r1] >> pos) & 0xff); | |
645 | address++; | |
646 | } | |
647 | mask = (mask << 1) & 0xf; | |
648 | pos -= 8; | |
649 | } | |
650 | } | |
651 | ||
652 | /* insert character under mask high; same as icm, but operates on the | |
653 | upper half of r1 */ | |
654 | uint32_t HELPER(icmh)(uint32_t r1, uint64_t address, uint32_t mask) | |
655 | { | |
656 | int pos = 56; /* top of the upper half of r1 */ | |
657 | uint64_t rmask = 0xff00000000000000ULL; | |
658 | uint8_t val = 0; | |
659 | int ccd = 0; | |
660 | uint32_t cc = 0; | |
661 | ||
662 | while (mask) { | |
663 | if (mask & 8) { | |
664 | env->regs[r1] &= ~rmask; | |
665 | val = ldub(address); | |
666 | if ((val & 0x80) && !ccd) { | |
667 | cc = 1; | |
668 | } | |
669 | ccd = 1; | |
670 | if (val && cc == 0) { | |
671 | cc = 2; | |
672 | } | |
673 | env->regs[r1] |= (uint64_t)val << pos; | |
674 | address++; | |
675 | } | |
676 | mask = (mask << 1) & 0xf; | |
677 | pos -= 8; | |
678 | rmask >>= 8; | |
679 | } | |
680 | ||
681 | return cc; | |
682 | } | |
683 | ||
defb0e31 AG |
684 | /* load access registers r1 to r3 from memory at a2 */ |
685 | void HELPER(lam)(uint32_t r1, uint64_t a2, uint32_t r3) | |
686 | { | |
687 | int i; | |
688 | ||
689 | for (i = r1;; i = (i + 1) % 16) { | |
690 | env->aregs[i] = ldl(a2); | |
691 | a2 += 4; | |
692 | ||
693 | if (i == r3) { | |
694 | break; | |
695 | } | |
696 | } | |
697 | } | |
698 | ||
699 | /* store access registers r1 to r3 in memory at a2 */ | |
700 | void HELPER(stam)(uint32_t r1, uint64_t a2, uint32_t r3) | |
701 | { | |
702 | int i; | |
703 | ||
704 | for (i = r1;; i = (i + 1) % 16) { | |
705 | stl(a2, env->aregs[i]); | |
706 | a2 += 4; | |
707 | ||
708 | if (i == r3) { | |
709 | break; | |
710 | } | |
711 | } | |
712 | } | |
713 | ||
714 | /* move long */ | |
715 | uint32_t HELPER(mvcl)(uint32_t r1, uint32_t r2) | |
716 | { | |
717 | uint64_t destlen = env->regs[r1 + 1] & 0xffffff; | |
718 | uint64_t dest = get_address_31fix(r1); | |
719 | uint64_t srclen = env->regs[r2 + 1] & 0xffffff; | |
720 | uint64_t src = get_address_31fix(r2); | |
721 | uint8_t pad = src >> 24; | |
722 | uint8_t v; | |
723 | uint32_t cc; | |
724 | ||
725 | if (destlen == srclen) { | |
726 | cc = 0; | |
727 | } else if (destlen < srclen) { | |
728 | cc = 1; | |
729 | } else { | |
730 | cc = 2; | |
731 | } | |
732 | ||
733 | if (srclen > destlen) { | |
734 | srclen = destlen; | |
735 | } | |
736 | ||
737 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
738 | v = ldub(src); | |
739 | stb(dest, v); | |
740 | } | |
741 | ||
742 | for (; destlen; dest++, destlen--) { | |
743 | stb(dest, pad); | |
744 | } | |
745 | ||
746 | env->regs[r1 + 1] = destlen; | |
747 | /* can't use srclen here, we trunc'ed it */ | |
748 | env->regs[r2 + 1] -= src - env->regs[r2]; | |
749 | env->regs[r1] = dest; | |
750 | env->regs[r2] = src; | |
751 | ||
752 | return cc; | |
753 | } | |
754 | ||
755 | /* move long extended another memcopy insn with more bells and whistles */ | |
756 | uint32_t HELPER(mvcle)(uint32_t r1, uint64_t a2, uint32_t r3) | |
757 | { | |
758 | uint64_t destlen = env->regs[r1 + 1]; | |
759 | uint64_t dest = env->regs[r1]; | |
760 | uint64_t srclen = env->regs[r3 + 1]; | |
761 | uint64_t src = env->regs[r3]; | |
762 | uint8_t pad = a2 & 0xff; | |
763 | uint8_t v; | |
764 | uint32_t cc; | |
765 | ||
766 | if (!(env->psw.mask & PSW_MASK_64)) { | |
767 | destlen = (uint32_t)destlen; | |
768 | srclen = (uint32_t)srclen; | |
769 | dest &= 0x7fffffff; | |
770 | src &= 0x7fffffff; | |
771 | } | |
772 | ||
773 | if (destlen == srclen) { | |
774 | cc = 0; | |
775 | } else if (destlen < srclen) { | |
776 | cc = 1; | |
777 | } else { | |
778 | cc = 2; | |
779 | } | |
780 | ||
781 | if (srclen > destlen) { | |
782 | srclen = destlen; | |
783 | } | |
784 | ||
785 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
786 | v = ldub(src); | |
787 | stb(dest, v); | |
788 | } | |
789 | ||
790 | for (; destlen; dest++, destlen--) { | |
791 | stb(dest, pad); | |
792 | } | |
793 | ||
794 | env->regs[r1 + 1] = destlen; | |
795 | /* can't use srclen here, we trunc'ed it */ | |
796 | /* FIXME: 31-bit mode! */ | |
797 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
798 | env->regs[r1] = dest; | |
799 | env->regs[r3] = src; | |
800 | ||
801 | return cc; | |
802 | } | |
803 | ||
804 | /* compare logical long extended memcompare insn with padding */ | |
805 | uint32_t HELPER(clcle)(uint32_t r1, uint64_t a2, uint32_t r3) | |
806 | { | |
807 | uint64_t destlen = env->regs[r1 + 1]; | |
808 | uint64_t dest = get_address_31fix(r1); | |
809 | uint64_t srclen = env->regs[r3 + 1]; | |
810 | uint64_t src = get_address_31fix(r3); | |
811 | uint8_t pad = a2 & 0xff; | |
71e47088 | 812 | uint8_t v1 = 0, v2 = 0; |
defb0e31 AG |
813 | uint32_t cc = 0; |
814 | ||
815 | if (!(destlen || srclen)) { | |
816 | return cc; | |
817 | } | |
818 | ||
819 | if (srclen > destlen) { | |
820 | srclen = destlen; | |
821 | } | |
822 | ||
823 | for (; destlen || srclen; src++, dest++, destlen--, srclen--) { | |
824 | v1 = srclen ? ldub(src) : pad; | |
825 | v2 = destlen ? ldub(dest) : pad; | |
826 | if (v1 != v2) { | |
827 | cc = (v1 < v2) ? 1 : 2; | |
828 | break; | |
829 | } | |
830 | } | |
831 | ||
832 | env->regs[r1 + 1] = destlen; | |
833 | /* can't use srclen here, we trunc'ed it */ | |
834 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
835 | env->regs[r1] = dest; | |
836 | env->regs[r3] = src; | |
837 | ||
838 | return cc; | |
839 | } | |
840 | ||
defb0e31 AG |
841 | /* checksum */ |
842 | void HELPER(cksm)(uint32_t r1, uint32_t r2) | |
843 | { | |
844 | uint64_t src = get_address_31fix(r2); | |
845 | uint64_t src_len = env->regs[(r2 + 1) & 15]; | |
5b185639 | 846 | uint64_t cksm = (uint32_t)env->regs[r1]; |
defb0e31 AG |
847 | |
848 | while (src_len >= 4) { | |
849 | cksm += ldl(src); | |
defb0e31 AG |
850 | |
851 | /* move to next word */ | |
852 | src_len -= 4; | |
853 | src += 4; | |
854 | } | |
855 | ||
856 | switch (src_len) { | |
857 | case 0: | |
858 | break; | |
859 | case 1: | |
5b185639 | 860 | cksm += ldub(src) << 24; |
defb0e31 AG |
861 | break; |
862 | case 2: | |
5b185639 | 863 | cksm += lduw(src) << 16; |
defb0e31 AG |
864 | break; |
865 | case 3: | |
5b185639 AG |
866 | cksm += lduw(src) << 16; |
867 | cksm += ldub(src + 2) << 8; | |
defb0e31 AG |
868 | break; |
869 | } | |
870 | ||
871 | /* indicate we've processed everything */ | |
5b185639 | 872 | env->regs[r2] = src + src_len; |
defb0e31 AG |
873 | env->regs[(r2 + 1) & 15] = 0; |
874 | ||
875 | /* store result */ | |
5b185639 | 876 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | |
71e47088 | 877 | ((uint32_t)cksm + (cksm >> 32)); |
defb0e31 AG |
878 | } |
879 | ||
defb0e31 AG |
880 | void HELPER(unpk)(uint32_t len, uint64_t dest, uint64_t src) |
881 | { | |
882 | int len_dest = len >> 4; | |
883 | int len_src = len & 0xf; | |
884 | uint8_t b; | |
885 | int second_nibble = 0; | |
886 | ||
887 | dest += len_dest; | |
888 | src += len_src; | |
889 | ||
890 | /* last byte is special, it only flips the nibbles */ | |
891 | b = ldub(src); | |
892 | stb(dest, (b << 4) | (b >> 4)); | |
893 | src--; | |
894 | len_src--; | |
895 | ||
896 | /* now pad every nibble with 0xf0 */ | |
897 | ||
898 | while (len_dest > 0) { | |
899 | uint8_t cur_byte = 0; | |
900 | ||
901 | if (len_src > 0) { | |
902 | cur_byte = ldub(src); | |
903 | } | |
904 | ||
905 | len_dest--; | |
906 | dest--; | |
907 | ||
908 | /* only advance one nibble at a time */ | |
909 | if (second_nibble) { | |
910 | cur_byte >>= 4; | |
911 | len_src--; | |
912 | src--; | |
913 | } | |
914 | second_nibble = !second_nibble; | |
915 | ||
916 | /* digit */ | |
917 | cur_byte = (cur_byte & 0xf); | |
918 | /* zone bits */ | |
919 | cur_byte |= 0xf0; | |
920 | ||
921 | stb(dest, cur_byte); | |
922 | } | |
923 | } | |
924 | ||
925 | void HELPER(tr)(uint32_t len, uint64_t array, uint64_t trans) | |
926 | { | |
927 | int i; | |
928 | ||
929 | for (i = 0; i <= len; i++) { | |
930 | uint8_t byte = ldub(array + i); | |
931 | uint8_t new_byte = ldub(trans + byte); | |
71e47088 | 932 | |
defb0e31 AG |
933 | stb(array + i, new_byte); |
934 | } | |
935 | } | |
936 | ||
937 | #ifndef CONFIG_USER_ONLY | |
a78b0504 | 938 | void program_interrupt(CPUS390XState *env, uint32_t code, int ilc) |
defb0e31 AG |
939 | { |
940 | qemu_log("program interrupt at %#" PRIx64 "\n", env->psw.addr); | |
941 | ||
942 | if (kvm_enabled()) { | |
af2be207 | 943 | #ifdef CONFIG_KVM |
defb0e31 | 944 | kvm_s390_interrupt(env, KVM_S390_PROGRAM_INT, code); |
af2be207 | 945 | #endif |
defb0e31 AG |
946 | } else { |
947 | env->int_pgm_code = code; | |
948 | env->int_pgm_ilc = ilc; | |
949 | env->exception_index = EXCP_PGM; | |
1162c041 | 950 | cpu_loop_exit(env); |
defb0e31 AG |
951 | } |
952 | } | |
953 | ||
9abf567d | 954 | /* |
71e47088 | 955 | * ret < 0 indicates program check, ret = 0, 1, 2, 3 -> cc |
9abf567d | 956 | */ |
a4e3ad19 | 957 | int sclp_service_call(CPUS390XState *env, uint32_t sccb, uint64_t code) |
defb0e31 AG |
958 | { |
959 | int r = 0; | |
22486aa0 | 960 | int shift = 0; |
defb0e31 AG |
961 | |
962 | #ifdef DEBUG_HELPER | |
963 | printf("sclp(0x%x, 0x%" PRIx64 ")\n", sccb, code); | |
964 | #endif | |
965 | ||
9abf567d CB |
966 | /* basic checks */ |
967 | if (!memory_region_is_ram(phys_page_find(sccb >> TARGET_PAGE_BITS)->mr)) { | |
968 | return -PGM_ADDRESSING; | |
969 | } | |
defb0e31 | 970 | if (sccb & ~0x7ffffff8ul) { |
9abf567d | 971 | return -PGM_SPECIFICATION; |
defb0e31 AG |
972 | } |
973 | ||
71e47088 BS |
974 | switch (code) { |
975 | case SCLP_CMDW_READ_SCP_INFO: | |
976 | case SCLP_CMDW_READ_SCP_INFO_FORCED: | |
977 | while ((ram_size >> (20 + shift)) > 65535) { | |
978 | shift++; | |
979 | } | |
980 | stw_phys(sccb + SCP_MEM_CODE, ram_size >> (20 + shift)); | |
981 | stb_phys(sccb + SCP_INCREMENT, 1 << shift); | |
982 | stw_phys(sccb + SCP_RESPONSE_CODE, 0x10); | |
defb0e31 | 983 | |
71e47088 BS |
984 | s390_sclp_extint(sccb & ~3); |
985 | break; | |
986 | default: | |
defb0e31 | 987 | #ifdef DEBUG_HELPER |
71e47088 | 988 | printf("KVM: invalid sclp call 0x%x / 0x%" PRIx64 "x\n", sccb, code); |
defb0e31 | 989 | #endif |
71e47088 BS |
990 | r = 3; |
991 | break; | |
defb0e31 AG |
992 | } |
993 | ||
defb0e31 AG |
994 | return r; |
995 | } | |
996 | ||
997 | /* SCLP service call */ | |
998 | uint32_t HELPER(servc)(uint32_t r1, uint64_t r2) | |
999 | { | |
9abf567d | 1000 | int r; |
defb0e31 | 1001 | |
9abf567d CB |
1002 | r = sclp_service_call(env, r1, r2); |
1003 | if (r < 0) { | |
1004 | program_interrupt(env, -r, 4); | |
1005 | return 0; | |
1006 | } | |
1007 | return r; | |
defb0e31 AG |
1008 | } |
1009 | ||
1010 | /* DIAG */ | |
1011 | uint64_t HELPER(diag)(uint32_t num, uint64_t mem, uint64_t code) | |
1012 | { | |
1013 | uint64_t r; | |
1014 | ||
1015 | switch (num) { | |
1016 | case 0x500: | |
1017 | /* KVM hypercall */ | |
1018 | r = s390_virtio_hypercall(env, mem, code); | |
1019 | break; | |
1020 | case 0x44: | |
1021 | /* yield */ | |
1022 | r = 0; | |
1023 | break; | |
1024 | case 0x308: | |
1025 | /* ipl */ | |
1026 | r = 0; | |
1027 | break; | |
1028 | default: | |
1029 | r = -1; | |
1030 | break; | |
1031 | } | |
1032 | ||
1033 | if (r) { | |
1034 | program_interrupt(env, PGM_OPERATION, ILC_LATER_INC); | |
1035 | } | |
1036 | ||
1037 | return r; | |
1038 | } | |
1039 | ||
1040 | /* Store CPU ID */ | |
1041 | void HELPER(stidp)(uint64_t a1) | |
1042 | { | |
1043 | stq(a1, env->cpu_num); | |
1044 | } | |
1045 | ||
1046 | /* Set Prefix */ | |
1047 | void HELPER(spx)(uint64_t a1) | |
1048 | { | |
1049 | uint32_t prefix; | |
1050 | ||
1051 | prefix = ldl(a1); | |
1052 | env->psa = prefix & 0xfffff000; | |
1053 | qemu_log("prefix: %#x\n", prefix); | |
1054 | tlb_flush_page(env, 0); | |
1055 | tlb_flush_page(env, TARGET_PAGE_SIZE); | |
1056 | } | |
1057 | ||
1058 | /* Set Clock */ | |
1059 | uint32_t HELPER(sck)(uint64_t a1) | |
1060 | { | |
1061 | /* XXX not implemented - is it necessary? */ | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
a4e3ad19 | 1066 | static inline uint64_t clock_value(CPUS390XState *env) |
defb0e31 AG |
1067 | { |
1068 | uint64_t time; | |
1069 | ||
1070 | time = env->tod_offset + | |
71e47088 | 1071 | time2tod(qemu_get_clock_ns(vm_clock) - env->tod_basetime); |
defb0e31 AG |
1072 | |
1073 | return time; | |
1074 | } | |
1075 | ||
1076 | /* Store Clock */ | |
1077 | uint32_t HELPER(stck)(uint64_t a1) | |
1078 | { | |
1079 | stq(a1, clock_value(env)); | |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | /* Store Clock Extended */ | |
1085 | uint32_t HELPER(stcke)(uint64_t a1) | |
1086 | { | |
1087 | stb(a1, 0); | |
1088 | /* basically the same value as stck */ | |
1089 | stq(a1 + 1, clock_value(env) | env->cpu_num); | |
1090 | /* more fine grained than stck */ | |
1091 | stq(a1 + 9, 0); | |
1092 | /* XXX programmable fields */ | |
1093 | stw(a1 + 17, 0); | |
1094 | ||
defb0e31 AG |
1095 | return 0; |
1096 | } | |
1097 | ||
1098 | /* Set Clock Comparator */ | |
1099 | void HELPER(sckc)(uint64_t a1) | |
1100 | { | |
1101 | uint64_t time = ldq(a1); | |
1102 | ||
1103 | if (time == -1ULL) { | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | /* difference between now and then */ | |
1108 | time -= clock_value(env); | |
1109 | /* nanoseconds */ | |
1110 | time = (time * 125) >> 9; | |
1111 | ||
1112 | qemu_mod_timer(env->tod_timer, qemu_get_clock_ns(vm_clock) + time); | |
1113 | } | |
1114 | ||
1115 | /* Store Clock Comparator */ | |
1116 | void HELPER(stckc)(uint64_t a1) | |
1117 | { | |
1118 | /* XXX implement */ | |
1119 | stq(a1, 0); | |
1120 | } | |
1121 | ||
1122 | /* Set CPU Timer */ | |
1123 | void HELPER(spt)(uint64_t a1) | |
1124 | { | |
1125 | uint64_t time = ldq(a1); | |
1126 | ||
1127 | if (time == -1ULL) { | |
1128 | return; | |
1129 | } | |
1130 | ||
1131 | /* nanoseconds */ | |
1132 | time = (time * 125) >> 9; | |
1133 | ||
1134 | qemu_mod_timer(env->cpu_timer, qemu_get_clock_ns(vm_clock) + time); | |
1135 | } | |
1136 | ||
1137 | /* Store CPU Timer */ | |
1138 | void HELPER(stpt)(uint64_t a1) | |
1139 | { | |
1140 | /* XXX implement */ | |
1141 | stq(a1, 0); | |
1142 | } | |
1143 | ||
1144 | /* Store System Information */ | |
1145 | uint32_t HELPER(stsi)(uint64_t a0, uint32_t r0, uint32_t r1) | |
1146 | { | |
1147 | int cc = 0; | |
1148 | int sel1, sel2; | |
1149 | ||
1150 | if ((r0 & STSI_LEVEL_MASK) <= STSI_LEVEL_3 && | |
1151 | ((r0 & STSI_R0_RESERVED_MASK) || (r1 & STSI_R1_RESERVED_MASK))) { | |
1152 | /* valid function code, invalid reserved bits */ | |
1153 | program_interrupt(env, PGM_SPECIFICATION, 2); | |
1154 | } | |
1155 | ||
1156 | sel1 = r0 & STSI_R0_SEL1_MASK; | |
1157 | sel2 = r1 & STSI_R1_SEL2_MASK; | |
1158 | ||
1159 | /* XXX: spec exception if sysib is not 4k-aligned */ | |
1160 | ||
1161 | switch (r0 & STSI_LEVEL_MASK) { | |
1162 | case STSI_LEVEL_1: | |
1163 | if ((sel1 == 1) && (sel2 == 1)) { | |
1164 | /* Basic Machine Configuration */ | |
1165 | struct sysib_111 sysib; | |
1166 | ||
1167 | memset(&sysib, 0, sizeof(sysib)); | |
1168 | ebcdic_put(sysib.manuf, "QEMU ", 16); | |
1169 | /* same as machine type number in STORE CPU ID */ | |
1170 | ebcdic_put(sysib.type, "QEMU", 4); | |
1171 | /* same as model number in STORE CPU ID */ | |
1172 | ebcdic_put(sysib.model, "QEMU ", 16); | |
1173 | ebcdic_put(sysib.sequence, "QEMU ", 16); | |
1174 | ebcdic_put(sysib.plant, "QEMU", 4); | |
71e47088 | 1175 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); |
defb0e31 AG |
1176 | } else if ((sel1 == 2) && (sel2 == 1)) { |
1177 | /* Basic Machine CPU */ | |
1178 | struct sysib_121 sysib; | |
1179 | ||
1180 | memset(&sysib, 0, sizeof(sysib)); | |
1181 | /* XXX make different for different CPUs? */ | |
1182 | ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); | |
1183 | ebcdic_put(sysib.plant, "QEMU", 4); | |
1184 | stw_p(&sysib.cpu_addr, env->cpu_num); | |
71e47088 | 1185 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); |
defb0e31 AG |
1186 | } else if ((sel1 == 2) && (sel2 == 2)) { |
1187 | /* Basic Machine CPUs */ | |
1188 | struct sysib_122 sysib; | |
1189 | ||
1190 | memset(&sysib, 0, sizeof(sysib)); | |
1191 | stl_p(&sysib.capability, 0x443afc29); | |
1192 | /* XXX change when SMP comes */ | |
1193 | stw_p(&sysib.total_cpus, 1); | |
1194 | stw_p(&sysib.active_cpus, 1); | |
1195 | stw_p(&sysib.standby_cpus, 0); | |
1196 | stw_p(&sysib.reserved_cpus, 0); | |
71e47088 | 1197 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); |
defb0e31 AG |
1198 | } else { |
1199 | cc = 3; | |
1200 | } | |
1201 | break; | |
1202 | case STSI_LEVEL_2: | |
71e47088 BS |
1203 | { |
1204 | if ((sel1 == 2) && (sel2 == 1)) { | |
1205 | /* LPAR CPU */ | |
1206 | struct sysib_221 sysib; | |
1207 | ||
1208 | memset(&sysib, 0, sizeof(sysib)); | |
1209 | /* XXX make different for different CPUs? */ | |
1210 | ebcdic_put(sysib.sequence, "QEMUQEMUQEMUQEMU", 16); | |
1211 | ebcdic_put(sysib.plant, "QEMU", 4); | |
1212 | stw_p(&sysib.cpu_addr, env->cpu_num); | |
1213 | stw_p(&sysib.cpu_id, 0); | |
1214 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); | |
1215 | } else if ((sel1 == 2) && (sel2 == 2)) { | |
1216 | /* LPAR CPUs */ | |
1217 | struct sysib_222 sysib; | |
1218 | ||
1219 | memset(&sysib, 0, sizeof(sysib)); | |
1220 | stw_p(&sysib.lpar_num, 0); | |
1221 | sysib.lcpuc = 0; | |
1222 | /* XXX change when SMP comes */ | |
1223 | stw_p(&sysib.total_cpus, 1); | |
1224 | stw_p(&sysib.conf_cpus, 1); | |
1225 | stw_p(&sysib.standby_cpus, 0); | |
1226 | stw_p(&sysib.reserved_cpus, 0); | |
1227 | ebcdic_put(sysib.name, "QEMU ", 8); | |
1228 | stl_p(&sysib.caf, 1000); | |
1229 | stw_p(&sysib.dedicated_cpus, 0); | |
1230 | stw_p(&sysib.shared_cpus, 0); | |
1231 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); | |
1232 | } else { | |
1233 | cc = 3; | |
1234 | } | |
1235 | break; | |
defb0e31 | 1236 | } |
defb0e31 | 1237 | case STSI_LEVEL_3: |
71e47088 BS |
1238 | { |
1239 | if ((sel1 == 2) && (sel2 == 2)) { | |
1240 | /* VM CPUs */ | |
1241 | struct sysib_322 sysib; | |
1242 | ||
1243 | memset(&sysib, 0, sizeof(sysib)); | |
1244 | sysib.count = 1; | |
1245 | /* XXX change when SMP comes */ | |
1246 | stw_p(&sysib.vm[0].total_cpus, 1); | |
1247 | stw_p(&sysib.vm[0].conf_cpus, 1); | |
1248 | stw_p(&sysib.vm[0].standby_cpus, 0); | |
1249 | stw_p(&sysib.vm[0].reserved_cpus, 0); | |
1250 | ebcdic_put(sysib.vm[0].name, "KVMguest", 8); | |
1251 | stl_p(&sysib.vm[0].caf, 1000); | |
1252 | ebcdic_put(sysib.vm[0].cpi, "KVM/Linux ", 16); | |
1253 | cpu_physical_memory_rw(a0, (uint8_t *)&sysib, sizeof(sysib), 1); | |
1254 | } else { | |
1255 | cc = 3; | |
1256 | } | |
1257 | break; | |
defb0e31 | 1258 | } |
defb0e31 AG |
1259 | case STSI_LEVEL_CURRENT: |
1260 | env->regs[0] = STSI_LEVEL_3; | |
1261 | break; | |
1262 | default: | |
1263 | cc = 3; | |
1264 | break; | |
1265 | } | |
1266 | ||
1267 | return cc; | |
1268 | } | |
1269 | ||
1270 | void HELPER(lctlg)(uint32_t r1, uint64_t a2, uint32_t r3) | |
1271 | { | |
1272 | int i; | |
1273 | uint64_t src = a2; | |
1274 | ||
1275 | for (i = r1;; i = (i + 1) % 16) { | |
1276 | env->cregs[i] = ldq(src); | |
1277 | HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n", | |
1278 | i, src, env->cregs[i]); | |
1279 | src += sizeof(uint64_t); | |
1280 | ||
1281 | if (i == r3) { | |
1282 | break; | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | tlb_flush(env, 1); | |
1287 | } | |
1288 | ||
1289 | void HELPER(lctl)(uint32_t r1, uint64_t a2, uint32_t r3) | |
1290 | { | |
1291 | int i; | |
1292 | uint64_t src = a2; | |
1293 | ||
1294 | for (i = r1;; i = (i + 1) % 16) { | |
1295 | env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | ldl(src); | |
1296 | src += sizeof(uint32_t); | |
1297 | ||
1298 | if (i == r3) { | |
1299 | break; | |
1300 | } | |
1301 | } | |
1302 | ||
1303 | tlb_flush(env, 1); | |
1304 | } | |
1305 | ||
1306 | void HELPER(stctg)(uint32_t r1, uint64_t a2, uint32_t r3) | |
1307 | { | |
1308 | int i; | |
1309 | uint64_t dest = a2; | |
1310 | ||
1311 | for (i = r1;; i = (i + 1) % 16) { | |
1312 | stq(dest, env->cregs[i]); | |
1313 | dest += sizeof(uint64_t); | |
1314 | ||
1315 | if (i == r3) { | |
1316 | break; | |
1317 | } | |
1318 | } | |
1319 | } | |
1320 | ||
1321 | void HELPER(stctl)(uint32_t r1, uint64_t a2, uint32_t r3) | |
1322 | { | |
1323 | int i; | |
1324 | uint64_t dest = a2; | |
1325 | ||
1326 | for (i = r1;; i = (i + 1) % 16) { | |
1327 | stl(dest, env->cregs[i]); | |
1328 | dest += sizeof(uint32_t); | |
1329 | ||
1330 | if (i == r3) { | |
1331 | break; | |
1332 | } | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2) | |
1337 | { | |
1338 | /* XXX implement */ | |
1339 | ||
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | /* insert storage key extended */ | |
1344 | uint64_t HELPER(iske)(uint64_t r2) | |
1345 | { | |
1346 | uint64_t addr = get_address(0, 0, r2); | |
1347 | ||
1348 | if (addr > ram_size) { | |
1349 | return 0; | |
1350 | } | |
1351 | ||
defb0e31 AG |
1352 | return env->storage_keys[addr / TARGET_PAGE_SIZE]; |
1353 | } | |
1354 | ||
1355 | /* set storage key extended */ | |
1356 | void HELPER(sske)(uint32_t r1, uint64_t r2) | |
1357 | { | |
1358 | uint64_t addr = get_address(0, 0, r2); | |
1359 | ||
1360 | if (addr > ram_size) { | |
1361 | return; | |
1362 | } | |
1363 | ||
1364 | env->storage_keys[addr / TARGET_PAGE_SIZE] = r1; | |
1365 | } | |
1366 | ||
1367 | /* reset reference bit extended */ | |
1368 | uint32_t HELPER(rrbe)(uint32_t r1, uint64_t r2) | |
1369 | { | |
17bb18ce AG |
1370 | uint8_t re; |
1371 | uint8_t key; | |
71e47088 | 1372 | |
defb0e31 AG |
1373 | if (r2 > ram_size) { |
1374 | return 0; | |
1375 | } | |
1376 | ||
17bb18ce AG |
1377 | key = env->storage_keys[r2 / TARGET_PAGE_SIZE]; |
1378 | re = key & (SK_R | SK_C); | |
1379 | env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R); | |
defb0e31 AG |
1380 | |
1381 | /* | |
1382 | * cc | |
1383 | * | |
1384 | * 0 Reference bit zero; change bit zero | |
1385 | * 1 Reference bit zero; change bit one | |
1386 | * 2 Reference bit one; change bit zero | |
1387 | * 3 Reference bit one; change bit one | |
1388 | */ | |
17bb18ce AG |
1389 | |
1390 | return re >> 1; | |
d5a43964 | 1391 | } |
defb0e31 AG |
1392 | |
1393 | /* compare and swap and purge */ | |
1394 | uint32_t HELPER(csp)(uint32_t r1, uint32_t r2) | |
1395 | { | |
1396 | uint32_t cc; | |
1397 | uint32_t o1 = env->regs[r1]; | |
1398 | uint64_t a2 = get_address_31fix(r2) & ~3ULL; | |
1399 | uint32_t o2 = ldl(a2); | |
1400 | ||
1401 | if (o1 == o2) { | |
1402 | stl(a2, env->regs[(r1 + 1) & 15]); | |
1403 | if (env->regs[r2] & 0x3) { | |
1404 | /* flush TLB / ALB */ | |
1405 | tlb_flush(env, 1); | |
1406 | } | |
1407 | cc = 0; | |
1408 | } else { | |
1409 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2; | |
1410 | cc = 1; | |
1411 | } | |
1412 | ||
1413 | return cc; | |
1414 | } | |
1415 | ||
1416 | static uint32_t mvc_asc(int64_t l, uint64_t a1, uint64_t mode1, uint64_t a2, | |
1417 | uint64_t mode2) | |
1418 | { | |
1419 | target_ulong src, dest; | |
1420 | int flags, cc = 0, i; | |
1421 | ||
1422 | if (!l) { | |
1423 | return 0; | |
1424 | } else if (l > 256) { | |
1425 | /* max 256 */ | |
1426 | l = 256; | |
1427 | cc = 3; | |
1428 | } | |
1429 | ||
1430 | if (mmu_translate(env, a1 & TARGET_PAGE_MASK, 1, mode1, &dest, &flags)) { | |
1162c041 | 1431 | cpu_loop_exit(env); |
defb0e31 AG |
1432 | } |
1433 | dest |= a1 & ~TARGET_PAGE_MASK; | |
1434 | ||
1435 | if (mmu_translate(env, a2 & TARGET_PAGE_MASK, 0, mode2, &src, &flags)) { | |
1162c041 | 1436 | cpu_loop_exit(env); |
defb0e31 AG |
1437 | } |
1438 | src |= a2 & ~TARGET_PAGE_MASK; | |
1439 | ||
1440 | /* XXX replace w/ memcpy */ | |
1441 | for (i = 0; i < l; i++) { | |
1442 | /* XXX be more clever */ | |
1443 | if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) || | |
1444 | (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) { | |
1445 | mvc_asc(l - i, a1 + i, mode1, a2 + i, mode2); | |
1446 | break; | |
1447 | } | |
1448 | stb_phys(dest + i, ldub_phys(src + i)); | |
1449 | } | |
1450 | ||
1451 | return cc; | |
1452 | } | |
1453 | ||
1454 | uint32_t HELPER(mvcs)(uint64_t l, uint64_t a1, uint64_t a2) | |
1455 | { | |
1456 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
71e47088 | 1457 | __func__, l, a1, a2); |
defb0e31 AG |
1458 | |
1459 | return mvc_asc(l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY); | |
1460 | } | |
1461 | ||
1462 | uint32_t HELPER(mvcp)(uint64_t l, uint64_t a1, uint64_t a2) | |
1463 | { | |
1464 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
71e47088 | 1465 | __func__, l, a1, a2); |
defb0e31 AG |
1466 | |
1467 | return mvc_asc(l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY); | |
1468 | } | |
1469 | ||
1470 | uint32_t HELPER(sigp)(uint64_t order_code, uint32_t r1, uint64_t cpu_addr) | |
1471 | { | |
1472 | int cc = 0; | |
1473 | ||
1474 | HELPER_LOG("%s: %016" PRIx64 " %08x %016" PRIx64 "\n", | |
71e47088 | 1475 | __func__, order_code, r1, cpu_addr); |
defb0e31 | 1476 | |
71e47088 | 1477 | /* Remember: Use "R1 or R1 + 1, whichever is the odd-numbered register" |
defb0e31 AG |
1478 | as parameter (input). Status (output) is always R1. */ |
1479 | ||
1480 | switch (order_code) { | |
1481 | case SIGP_SET_ARCH: | |
1482 | /* switch arch */ | |
1483 | break; | |
1484 | case SIGP_SENSE: | |
1485 | /* enumerate CPU status */ | |
1486 | if (cpu_addr) { | |
1487 | /* XXX implement when SMP comes */ | |
1488 | return 3; | |
1489 | } | |
1490 | env->regs[r1] &= 0xffffffff00000000ULL; | |
1491 | cc = 1; | |
1492 | break; | |
71e47088 | 1493 | #if !defined(CONFIG_USER_ONLY) |
1864b94a AG |
1494 | case SIGP_RESTART: |
1495 | qemu_system_reset_request(); | |
1496 | cpu_loop_exit(env); | |
1497 | break; | |
1498 | case SIGP_STOP: | |
1499 | qemu_system_shutdown_request(); | |
1500 | cpu_loop_exit(env); | |
1501 | break; | |
1502 | #endif | |
defb0e31 AG |
1503 | default: |
1504 | /* unknown sigp */ | |
1505 | fprintf(stderr, "XXX unknown sigp: 0x%" PRIx64 "\n", order_code); | |
1506 | cc = 3; | |
1507 | } | |
1508 | ||
1509 | return cc; | |
1510 | } | |
1511 | ||
defb0e31 AG |
1512 | /* invalidate pte */ |
1513 | void HELPER(ipte)(uint64_t pte_addr, uint64_t vaddr) | |
1514 | { | |
1515 | uint64_t page = vaddr & TARGET_PAGE_MASK; | |
1516 | uint64_t pte = 0; | |
1517 | ||
1518 | /* XXX broadcast to other CPUs */ | |
1519 | ||
1520 | /* XXX Linux is nice enough to give us the exact pte address. | |
71e47088 | 1521 | According to spec we'd have to find it out ourselves */ |
defb0e31 | 1522 | /* XXX Linux is fine with overwriting the pte, the spec requires |
71e47088 | 1523 | us to only set the invalid bit */ |
defb0e31 AG |
1524 | stq_phys(pte_addr, pte | _PAGE_INVALID); |
1525 | ||
1526 | /* XXX we exploit the fact that Linux passes the exact virtual | |
71e47088 | 1527 | address here - it's not obliged to! */ |
defb0e31 | 1528 | tlb_flush_page(env, page); |
09ed75f7 AG |
1529 | |
1530 | /* XXX 31-bit hack */ | |
1531 | if (page & 0x80000000) { | |
1532 | tlb_flush_page(env, page & ~0x80000000); | |
1533 | } else { | |
1534 | tlb_flush_page(env, page | 0x80000000); | |
1535 | } | |
defb0e31 AG |
1536 | } |
1537 | ||
1538 | /* flush local tlb */ | |
1539 | void HELPER(ptlb)(void) | |
1540 | { | |
1541 | tlb_flush(env, 1); | |
1542 | } | |
1543 | ||
1544 | /* store using real address */ | |
1545 | void HELPER(stura)(uint64_t addr, uint32_t v1) | |
1546 | { | |
1547 | stw_phys(get_address(0, 0, addr), v1); | |
1548 | } | |
1549 | ||
1550 | /* load real address */ | |
1551 | uint32_t HELPER(lra)(uint64_t addr, uint32_t r1) | |
1552 | { | |
1553 | uint32_t cc = 0; | |
1554 | int old_exc = env->exception_index; | |
1555 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
1556 | uint64_t ret; | |
1557 | int flags; | |
1558 | ||
1559 | /* XXX incomplete - has more corner cases */ | |
1560 | if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { | |
1561 | program_interrupt(env, PGM_SPECIAL_OP, 2); | |
1562 | } | |
1563 | ||
1564 | env->exception_index = old_exc; | |
1565 | if (mmu_translate(env, addr, 0, asc, &ret, &flags)) { | |
1566 | cc = 3; | |
1567 | } | |
1568 | if (env->exception_index == EXCP_PGM) { | |
1569 | ret = env->int_pgm_code | 0x80000000; | |
1570 | } else { | |
1571 | ret |= addr & ~TARGET_PAGE_MASK; | |
1572 | } | |
1573 | env->exception_index = old_exc; | |
1574 | ||
1575 | if (!(env->psw.mask & PSW_MASK_64)) { | |
71e47088 BS |
1576 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | |
1577 | (ret & 0xffffffffULL); | |
defb0e31 AG |
1578 | } else { |
1579 | env->regs[r1] = ret; | |
1580 | } | |
1581 | ||
1582 | return cc; | |
1583 | } | |
1584 | ||
1585 | #endif |