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8ef7f78e BS |
1 | /* |
2 | * S/390 memory access helper routines | |
3 | * | |
4 | * Copyright (c) 2009 Ulrich Hecht | |
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 | |
18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include "cpu.h" | |
8ef7f78e BS |
22 | #include "helper.h" |
23 | ||
24 | /*****************************************************************************/ | |
25 | /* Softmmu support */ | |
26 | #if !defined(CONFIG_USER_ONLY) | |
022c62cb | 27 | #include "exec/softmmu_exec.h" |
8ef7f78e BS |
28 | |
29 | #define MMUSUFFIX _mmu | |
30 | ||
31 | #define SHIFT 0 | |
022c62cb | 32 | #include "exec/softmmu_template.h" |
8ef7f78e BS |
33 | |
34 | #define SHIFT 1 | |
022c62cb | 35 | #include "exec/softmmu_template.h" |
8ef7f78e BS |
36 | |
37 | #define SHIFT 2 | |
022c62cb | 38 | #include "exec/softmmu_template.h" |
8ef7f78e BS |
39 | |
40 | #define SHIFT 3 | |
022c62cb | 41 | #include "exec/softmmu_template.h" |
8ef7f78e BS |
42 | |
43 | /* try to fill the TLB and return an exception if error. If retaddr is | |
44 | NULL, it means that the function was called in C code (i.e. not | |
45 | from generated code or from helper.c) */ | |
46 | /* XXX: fix it to restore all registers */ | |
19b0516f | 47 | void tlb_fill(CPUS390XState *env, target_ulong addr, int is_write, int mmu_idx, |
8ef7f78e BS |
48 | uintptr_t retaddr) |
49 | { | |
8ef7f78e BS |
50 | int ret; |
51 | ||
8ef7f78e BS |
52 | ret = cpu_s390x_handle_mmu_fault(env, addr, is_write, mmu_idx); |
53 | if (unlikely(ret != 0)) { | |
54 | if (likely(retaddr)) { | |
55 | /* now we have a real cpu fault */ | |
a8a826a3 | 56 | cpu_restore_state(env, retaddr); |
8ef7f78e BS |
57 | } |
58 | cpu_loop_exit(env); | |
59 | } | |
8ef7f78e BS |
60 | } |
61 | ||
62 | #endif | |
63 | ||
64 | /* #define DEBUG_HELPER */ | |
65 | #ifdef DEBUG_HELPER | |
66 | #define HELPER_LOG(x...) qemu_log(x) | |
67 | #else | |
68 | #define HELPER_LOG(x...) | |
69 | #endif | |
70 | ||
71 | #ifndef CONFIG_USER_ONLY | |
72 | static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest, | |
73 | uint8_t byte) | |
74 | { | |
a8170e5e AK |
75 | hwaddr dest_phys; |
76 | hwaddr len = l; | |
8ef7f78e BS |
77 | void *dest_p; |
78 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
79 | int flags; | |
80 | ||
81 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { | |
19b0516f | 82 | cpu_stb_data(env, dest, byte); |
8ef7f78e BS |
83 | cpu_abort(env, "should never reach here"); |
84 | } | |
85 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
86 | ||
87 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
88 | ||
89 | memset(dest_p, byte, len); | |
90 | ||
91 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
92 | } | |
93 | ||
94 | static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest, | |
95 | uint64_t src) | |
96 | { | |
a8170e5e AK |
97 | hwaddr dest_phys; |
98 | hwaddr src_phys; | |
99 | hwaddr len = l; | |
8ef7f78e BS |
100 | void *dest_p; |
101 | void *src_p; | |
102 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
103 | int flags; | |
104 | ||
105 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags)) { | |
19b0516f | 106 | cpu_stb_data(env, dest, 0); |
8ef7f78e BS |
107 | cpu_abort(env, "should never reach here"); |
108 | } | |
109 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
110 | ||
111 | if (mmu_translate(env, src, 0, asc, &src_phys, &flags)) { | |
19b0516f | 112 | cpu_ldub_data(env, src); |
8ef7f78e BS |
113 | cpu_abort(env, "should never reach here"); |
114 | } | |
115 | src_phys |= src & ~TARGET_PAGE_MASK; | |
116 | ||
117 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
118 | src_p = cpu_physical_memory_map(src_phys, &len, 0); | |
119 | ||
120 | memmove(dest_p, src_p, len); | |
121 | ||
122 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
123 | cpu_physical_memory_unmap(src_p, 0, len, len); | |
124 | } | |
125 | #endif | |
126 | ||
127 | /* and on array */ | |
19b0516f BS |
128 | uint32_t HELPER(nc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
129 | uint64_t src) | |
8ef7f78e BS |
130 | { |
131 | int i; | |
132 | unsigned char x; | |
133 | uint32_t cc = 0; | |
134 | ||
135 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
136 | __func__, l, dest, src); | |
137 | for (i = 0; i <= l; i++) { | |
19b0516f | 138 | x = cpu_ldub_data(env, dest + i) & cpu_ldub_data(env, src + i); |
8ef7f78e BS |
139 | if (x) { |
140 | cc = 1; | |
141 | } | |
19b0516f | 142 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
143 | } |
144 | return cc; | |
145 | } | |
146 | ||
147 | /* xor on array */ | |
19b0516f BS |
148 | uint32_t HELPER(xc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
149 | uint64_t src) | |
8ef7f78e BS |
150 | { |
151 | int i; | |
152 | unsigned char x; | |
153 | uint32_t cc = 0; | |
154 | ||
155 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
156 | __func__, l, dest, src); | |
157 | ||
158 | #ifndef CONFIG_USER_ONLY | |
159 | /* xor with itself is the same as memset(0) */ | |
160 | if ((l > 32) && (src == dest) && | |
161 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) { | |
162 | mvc_fast_memset(env, l + 1, dest, 0); | |
163 | return 0; | |
164 | } | |
165 | #else | |
166 | if (src == dest) { | |
167 | memset(g2h(dest), 0, l + 1); | |
168 | return 0; | |
169 | } | |
170 | #endif | |
171 | ||
172 | for (i = 0; i <= l; i++) { | |
19b0516f | 173 | x = cpu_ldub_data(env, dest + i) ^ cpu_ldub_data(env, src + i); |
8ef7f78e BS |
174 | if (x) { |
175 | cc = 1; | |
176 | } | |
19b0516f | 177 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
178 | } |
179 | return cc; | |
180 | } | |
181 | ||
182 | /* or on array */ | |
19b0516f BS |
183 | uint32_t HELPER(oc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
184 | uint64_t src) | |
8ef7f78e BS |
185 | { |
186 | int i; | |
187 | unsigned char x; | |
188 | uint32_t cc = 0; | |
189 | ||
190 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
191 | __func__, l, dest, src); | |
192 | for (i = 0; i <= l; i++) { | |
19b0516f | 193 | x = cpu_ldub_data(env, dest + i) | cpu_ldub_data(env, src + i); |
8ef7f78e BS |
194 | if (x) { |
195 | cc = 1; | |
196 | } | |
19b0516f | 197 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
198 | } |
199 | return cc; | |
200 | } | |
201 | ||
202 | /* memmove */ | |
19b0516f | 203 | void HELPER(mvc)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) |
8ef7f78e BS |
204 | { |
205 | int i = 0; | |
206 | int x = 0; | |
207 | uint32_t l_64 = (l + 1) / 8; | |
208 | ||
209 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
210 | __func__, l, dest, src); | |
211 | ||
212 | #ifndef CONFIG_USER_ONLY | |
213 | if ((l > 32) && | |
214 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) && | |
215 | (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) { | |
216 | if (dest == (src + 1)) { | |
19b0516f | 217 | mvc_fast_memset(env, l + 1, dest, cpu_ldub_data(env, src)); |
8ef7f78e BS |
218 | return; |
219 | } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { | |
220 | mvc_fast_memmove(env, l + 1, dest, src); | |
221 | return; | |
222 | } | |
223 | } | |
224 | #else | |
225 | if (dest == (src + 1)) { | |
19b0516f | 226 | memset(g2h(dest), cpu_ldub_data(env, src), l + 1); |
8ef7f78e BS |
227 | return; |
228 | } else { | |
229 | memmove(g2h(dest), g2h(src), l + 1); | |
230 | return; | |
231 | } | |
232 | #endif | |
233 | ||
234 | /* handle the parts that fit into 8-byte loads/stores */ | |
235 | if (dest != (src + 1)) { | |
236 | for (i = 0; i < l_64; i++) { | |
19b0516f | 237 | cpu_stq_data(env, dest + x, cpu_ldq_data(env, src + x)); |
8ef7f78e BS |
238 | x += 8; |
239 | } | |
240 | } | |
241 | ||
242 | /* slow version crossing pages with byte accesses */ | |
243 | for (i = x; i <= l; i++) { | |
19b0516f | 244 | cpu_stb_data(env, dest + i, cpu_ldub_data(env, src + i)); |
8ef7f78e BS |
245 | } |
246 | } | |
247 | ||
248 | /* compare unsigned byte arrays */ | |
19b0516f | 249 | uint32_t HELPER(clc)(CPUS390XState *env, uint32_t l, uint64_t s1, uint64_t s2) |
8ef7f78e BS |
250 | { |
251 | int i; | |
252 | unsigned char x, y; | |
253 | uint32_t cc; | |
254 | ||
255 | HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n", | |
256 | __func__, l, s1, s2); | |
257 | for (i = 0; i <= l; i++) { | |
19b0516f BS |
258 | x = cpu_ldub_data(env, s1 + i); |
259 | y = cpu_ldub_data(env, s2 + i); | |
8ef7f78e BS |
260 | HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y); |
261 | if (x < y) { | |
262 | cc = 1; | |
263 | goto done; | |
264 | } else if (x > y) { | |
265 | cc = 2; | |
266 | goto done; | |
267 | } | |
268 | } | |
269 | cc = 0; | |
270 | done: | |
271 | HELPER_LOG("\n"); | |
272 | return cc; | |
273 | } | |
274 | ||
275 | /* compare logical under mask */ | |
19b0516f BS |
276 | uint32_t HELPER(clm)(CPUS390XState *env, uint32_t r1, uint32_t mask, |
277 | uint64_t addr) | |
8ef7f78e BS |
278 | { |
279 | uint8_t r, d; | |
280 | uint32_t cc; | |
281 | ||
282 | HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1, | |
283 | mask, addr); | |
284 | cc = 0; | |
285 | while (mask) { | |
286 | if (mask & 8) { | |
19b0516f | 287 | d = cpu_ldub_data(env, addr); |
8ef7f78e BS |
288 | r = (r1 & 0xff000000UL) >> 24; |
289 | HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d, | |
290 | addr); | |
291 | if (r < d) { | |
292 | cc = 1; | |
293 | break; | |
294 | } else if (r > d) { | |
295 | cc = 2; | |
296 | break; | |
297 | } | |
298 | addr++; | |
299 | } | |
300 | mask = (mask << 1) & 0xf; | |
301 | r1 <<= 8; | |
302 | } | |
303 | HELPER_LOG("\n"); | |
304 | return cc; | |
305 | } | |
306 | ||
19b0516f | 307 | static inline uint64_t get_address(CPUS390XState *env, int x2, int b2, int d2) |
8ef7f78e BS |
308 | { |
309 | uint64_t r = d2; | |
310 | ||
311 | if (x2) { | |
312 | r += env->regs[x2]; | |
313 | } | |
314 | ||
315 | if (b2) { | |
316 | r += env->regs[b2]; | |
317 | } | |
318 | ||
319 | /* 31-Bit mode */ | |
320 | if (!(env->psw.mask & PSW_MASK_64)) { | |
321 | r &= 0x7fffffff; | |
322 | } | |
323 | ||
324 | return r; | |
325 | } | |
326 | ||
19b0516f | 327 | static inline uint64_t get_address_31fix(CPUS390XState *env, int reg) |
8ef7f78e BS |
328 | { |
329 | uint64_t r = env->regs[reg]; | |
330 | ||
331 | /* 31-Bit mode */ | |
332 | if (!(env->psw.mask & PSW_MASK_64)) { | |
333 | r &= 0x7fffffff; | |
334 | } | |
335 | ||
336 | return r; | |
337 | } | |
338 | ||
339 | /* search string (c is byte to search, r2 is string, r1 end of string) */ | |
19b0516f | 340 | uint32_t HELPER(srst)(CPUS390XState *env, uint32_t c, uint32_t r1, uint32_t r2) |
8ef7f78e BS |
341 | { |
342 | uint64_t i; | |
343 | uint32_t cc = 2; | |
19b0516f BS |
344 | uint64_t str = get_address_31fix(env, r2); |
345 | uint64_t end = get_address_31fix(env, r1); | |
8ef7f78e BS |
346 | |
347 | HELPER_LOG("%s: c %d *r1 0x%" PRIx64 " *r2 0x%" PRIx64 "\n", __func__, | |
348 | c, env->regs[r1], env->regs[r2]); | |
349 | ||
350 | for (i = str; i != end; i++) { | |
19b0516f | 351 | if (cpu_ldub_data(env, i) == c) { |
8ef7f78e BS |
352 | env->regs[r1] = i; |
353 | cc = 1; | |
354 | break; | |
355 | } | |
356 | } | |
357 | ||
358 | return cc; | |
359 | } | |
360 | ||
361 | /* unsigned string compare (c is string terminator) */ | |
19b0516f | 362 | uint32_t HELPER(clst)(CPUS390XState *env, uint32_t c, uint32_t r1, uint32_t r2) |
8ef7f78e | 363 | { |
19b0516f BS |
364 | uint64_t s1 = get_address_31fix(env, r1); |
365 | uint64_t s2 = get_address_31fix(env, r2); | |
8ef7f78e BS |
366 | uint8_t v1, v2; |
367 | uint32_t cc; | |
368 | ||
369 | c = c & 0xff; | |
370 | #ifdef CONFIG_USER_ONLY | |
371 | if (!c) { | |
372 | HELPER_LOG("%s: comparing '%s' and '%s'\n", | |
373 | __func__, (char *)g2h(s1), (char *)g2h(s2)); | |
374 | } | |
375 | #endif | |
376 | for (;;) { | |
19b0516f BS |
377 | v1 = cpu_ldub_data(env, s1); |
378 | v2 = cpu_ldub_data(env, s2); | |
8ef7f78e BS |
379 | if ((v1 == c || v2 == c) || (v1 != v2)) { |
380 | break; | |
381 | } | |
382 | s1++; | |
383 | s2++; | |
384 | } | |
385 | ||
386 | if (v1 == v2) { | |
387 | cc = 0; | |
388 | } else { | |
389 | cc = (v1 < v2) ? 1 : 2; | |
390 | /* FIXME: 31-bit mode! */ | |
391 | env->regs[r1] = s1; | |
392 | env->regs[r2] = s2; | |
393 | } | |
394 | return cc; | |
395 | } | |
396 | ||
397 | /* move page */ | |
19b0516f | 398 | void HELPER(mvpg)(CPUS390XState *env, uint64_t r0, uint64_t r1, uint64_t r2) |
8ef7f78e BS |
399 | { |
400 | /* XXX missing r0 handling */ | |
401 | #ifdef CONFIG_USER_ONLY | |
402 | int i; | |
403 | ||
404 | for (i = 0; i < TARGET_PAGE_SIZE; i++) { | |
19b0516f | 405 | cpu_stb_data(env, r1 + i, cpu_ldub_data(env, r2 + i)); |
8ef7f78e BS |
406 | } |
407 | #else | |
408 | mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2); | |
409 | #endif | |
410 | } | |
411 | ||
412 | /* string copy (c is string terminator) */ | |
19b0516f | 413 | void HELPER(mvst)(CPUS390XState *env, uint32_t c, uint32_t r1, uint32_t r2) |
8ef7f78e | 414 | { |
19b0516f BS |
415 | uint64_t dest = get_address_31fix(env, r1); |
416 | uint64_t src = get_address_31fix(env, r2); | |
8ef7f78e BS |
417 | uint8_t v; |
418 | ||
419 | c = c & 0xff; | |
420 | #ifdef CONFIG_USER_ONLY | |
421 | if (!c) { | |
422 | HELPER_LOG("%s: copy '%s' to 0x%lx\n", __func__, (char *)g2h(src), | |
423 | dest); | |
424 | } | |
425 | #endif | |
426 | for (;;) { | |
19b0516f BS |
427 | v = cpu_ldub_data(env, src); |
428 | cpu_stb_data(env, dest, v); | |
8ef7f78e BS |
429 | if (v == c) { |
430 | break; | |
431 | } | |
432 | src++; | |
433 | dest++; | |
434 | } | |
435 | env->regs[r1] = dest; /* FIXME: 31-bit mode! */ | |
436 | } | |
437 | ||
438 | /* compare and swap 64-bit */ | |
f3de39c4 | 439 | uint64_t HELPER(csg)(CPUS390XState *env, uint64_t r1, uint64_t a2, uint64_t r3) |
8ef7f78e BS |
440 | { |
441 | /* FIXME: locking? */ | |
19b0516f | 442 | uint64_t v2 = cpu_ldq_data(env, a2); |
f3de39c4 RH |
443 | if (r1 == v2) { |
444 | cpu_stq_data(env, a2, r3); | |
445 | env->cc_op = 0; | |
446 | return r1; | |
8ef7f78e | 447 | } else { |
f3de39c4 RH |
448 | env->cc_op = 1; |
449 | return v2; | |
8ef7f78e | 450 | } |
8ef7f78e BS |
451 | } |
452 | ||
453 | /* compare double and swap 64-bit */ | |
19b0516f | 454 | uint32_t HELPER(cdsg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
455 | { |
456 | /* FIXME: locking? */ | |
457 | uint32_t cc; | |
19b0516f BS |
458 | uint64_t v2_hi = cpu_ldq_data(env, a2); |
459 | uint64_t v2_lo = cpu_ldq_data(env, a2 + 8); | |
8ef7f78e BS |
460 | uint64_t v1_hi = env->regs[r1]; |
461 | uint64_t v1_lo = env->regs[r1 + 1]; | |
462 | ||
463 | if ((v1_hi == v2_hi) && (v1_lo == v2_lo)) { | |
464 | cc = 0; | |
19b0516f BS |
465 | cpu_stq_data(env, a2, env->regs[r3]); |
466 | cpu_stq_data(env, a2 + 8, env->regs[r3 + 1]); | |
8ef7f78e BS |
467 | } else { |
468 | cc = 1; | |
469 | env->regs[r1] = v2_hi; | |
470 | env->regs[r1 + 1] = v2_lo; | |
471 | } | |
472 | ||
473 | return cc; | |
474 | } | |
475 | ||
476 | /* compare and swap 32-bit */ | |
f3de39c4 | 477 | uint64_t HELPER(cs)(CPUS390XState *env, uint64_t r1, uint64_t a2, uint64_t r3) |
8ef7f78e BS |
478 | { |
479 | /* FIXME: locking? */ | |
19b0516f | 480 | uint32_t v2 = cpu_ldl_data(env, a2); |
f3de39c4 RH |
481 | if ((uint32_t)r1 == v2) { |
482 | cpu_stl_data(env, a2, (uint32_t)r3); | |
483 | env->cc_op = 0; | |
484 | return r1; | |
8ef7f78e | 485 | } else { |
f3de39c4 RH |
486 | env->cc_op = 1; |
487 | return v2; | |
8ef7f78e | 488 | } |
8ef7f78e BS |
489 | } |
490 | ||
19b0516f BS |
491 | static uint32_t helper_icm(CPUS390XState *env, uint32_t r1, uint64_t address, |
492 | uint32_t mask) | |
8ef7f78e BS |
493 | { |
494 | int pos = 24; /* top of the lower half of r1 */ | |
495 | uint64_t rmask = 0xff000000ULL; | |
496 | uint8_t val = 0; | |
497 | int ccd = 0; | |
498 | uint32_t cc = 0; | |
499 | ||
500 | while (mask) { | |
501 | if (mask & 8) { | |
502 | env->regs[r1] &= ~rmask; | |
19b0516f | 503 | val = cpu_ldub_data(env, address); |
8ef7f78e BS |
504 | if ((val & 0x80) && !ccd) { |
505 | cc = 1; | |
506 | } | |
507 | ccd = 1; | |
508 | if (val && cc == 0) { | |
509 | cc = 2; | |
510 | } | |
511 | env->regs[r1] |= (uint64_t)val << pos; | |
512 | address++; | |
513 | } | |
514 | mask = (mask << 1) & 0xf; | |
515 | pos -= 8; | |
516 | rmask >>= 8; | |
517 | } | |
518 | ||
519 | return cc; | |
520 | } | |
521 | ||
522 | /* execute instruction | |
523 | this instruction executes an insn modified with the contents of r1 | |
524 | it does not change the executed instruction in memory | |
525 | it does not change the program counter | |
526 | in other words: tricky... | |
527 | currently implemented by interpreting the cases it is most commonly used in | |
528 | */ | |
19b0516f BS |
529 | uint32_t HELPER(ex)(CPUS390XState *env, uint32_t cc, uint64_t v1, |
530 | uint64_t addr, uint64_t ret) | |
8ef7f78e | 531 | { |
19b0516f | 532 | uint16_t insn = cpu_lduw_code(env, addr); |
8ef7f78e BS |
533 | |
534 | HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr, | |
535 | insn); | |
536 | if ((insn & 0xf0ff) == 0xd000) { | |
537 | uint32_t l, insn2, b1, b2, d1, d2; | |
538 | ||
539 | l = v1 & 0xff; | |
19b0516f | 540 | insn2 = cpu_ldl_code(env, addr + 2); |
8ef7f78e BS |
541 | b1 = (insn2 >> 28) & 0xf; |
542 | b2 = (insn2 >> 12) & 0xf; | |
543 | d1 = (insn2 >> 16) & 0xfff; | |
544 | d2 = insn2 & 0xfff; | |
545 | switch (insn & 0xf00) { | |
546 | case 0x200: | |
19b0516f BS |
547 | helper_mvc(env, l, get_address(env, 0, b1, d1), |
548 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
549 | break; |
550 | case 0x500: | |
19b0516f BS |
551 | cc = helper_clc(env, l, get_address(env, 0, b1, d1), |
552 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
553 | break; |
554 | case 0x700: | |
19b0516f BS |
555 | cc = helper_xc(env, l, get_address(env, 0, b1, d1), |
556 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
557 | break; |
558 | case 0xc00: | |
19b0516f BS |
559 | helper_tr(env, l, get_address(env, 0, b1, d1), |
560 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
561 | break; |
562 | default: | |
563 | goto abort; | |
564 | break; | |
565 | } | |
566 | } else if ((insn & 0xff00) == 0x0a00) { | |
567 | /* supervisor call */ | |
568 | HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff); | |
569 | env->psw.addr = ret - 4; | |
570 | env->int_svc_code = (insn | v1) & 0xff; | |
d5a103cd | 571 | env->int_svc_ilen = 4; |
089f5c06 | 572 | helper_exception(env, EXCP_SVC); |
8ef7f78e BS |
573 | } else if ((insn & 0xff00) == 0xbf00) { |
574 | uint32_t insn2, r1, r3, b2, d2; | |
575 | ||
19b0516f | 576 | insn2 = cpu_ldl_code(env, addr + 2); |
8ef7f78e BS |
577 | r1 = (insn2 >> 20) & 0xf; |
578 | r3 = (insn2 >> 16) & 0xf; | |
579 | b2 = (insn2 >> 12) & 0xf; | |
580 | d2 = insn2 & 0xfff; | |
19b0516f | 581 | cc = helper_icm(env, r1, get_address(env, 0, b2, d2), r3); |
8ef7f78e BS |
582 | } else { |
583 | abort: | |
584 | cpu_abort(env, "EXECUTE on instruction prefix 0x%x not implemented\n", | |
585 | insn); | |
586 | } | |
587 | return cc; | |
588 | } | |
589 | ||
8ef7f78e | 590 | /* load access registers r1 to r3 from memory at a2 */ |
19b0516f | 591 | void HELPER(lam)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
592 | { |
593 | int i; | |
594 | ||
595 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 596 | env->aregs[i] = cpu_ldl_data(env, a2); |
8ef7f78e BS |
597 | a2 += 4; |
598 | ||
599 | if (i == r3) { | |
600 | break; | |
601 | } | |
602 | } | |
603 | } | |
604 | ||
605 | /* store access registers r1 to r3 in memory at a2 */ | |
19b0516f | 606 | void HELPER(stam)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
607 | { |
608 | int i; | |
609 | ||
610 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 611 | cpu_stl_data(env, a2, env->aregs[i]); |
8ef7f78e BS |
612 | a2 += 4; |
613 | ||
614 | if (i == r3) { | |
615 | break; | |
616 | } | |
617 | } | |
618 | } | |
619 | ||
620 | /* move long */ | |
19b0516f | 621 | uint32_t HELPER(mvcl)(CPUS390XState *env, uint32_t r1, uint32_t r2) |
8ef7f78e BS |
622 | { |
623 | uint64_t destlen = env->regs[r1 + 1] & 0xffffff; | |
19b0516f | 624 | uint64_t dest = get_address_31fix(env, r1); |
8ef7f78e | 625 | uint64_t srclen = env->regs[r2 + 1] & 0xffffff; |
19b0516f | 626 | uint64_t src = get_address_31fix(env, r2); |
8ef7f78e BS |
627 | uint8_t pad = src >> 24; |
628 | uint8_t v; | |
629 | uint32_t cc; | |
630 | ||
631 | if (destlen == srclen) { | |
632 | cc = 0; | |
633 | } else if (destlen < srclen) { | |
634 | cc = 1; | |
635 | } else { | |
636 | cc = 2; | |
637 | } | |
638 | ||
639 | if (srclen > destlen) { | |
640 | srclen = destlen; | |
641 | } | |
642 | ||
643 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
644 | v = cpu_ldub_data(env, src); |
645 | cpu_stb_data(env, dest, v); | |
8ef7f78e BS |
646 | } |
647 | ||
648 | for (; destlen; dest++, destlen--) { | |
19b0516f | 649 | cpu_stb_data(env, dest, pad); |
8ef7f78e BS |
650 | } |
651 | ||
652 | env->regs[r1 + 1] = destlen; | |
653 | /* can't use srclen here, we trunc'ed it */ | |
654 | env->regs[r2 + 1] -= src - env->regs[r2]; | |
655 | env->regs[r1] = dest; | |
656 | env->regs[r2] = src; | |
657 | ||
658 | return cc; | |
659 | } | |
660 | ||
661 | /* move long extended another memcopy insn with more bells and whistles */ | |
19b0516f BS |
662 | uint32_t HELPER(mvcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, |
663 | uint32_t r3) | |
8ef7f78e BS |
664 | { |
665 | uint64_t destlen = env->regs[r1 + 1]; | |
666 | uint64_t dest = env->regs[r1]; | |
667 | uint64_t srclen = env->regs[r3 + 1]; | |
668 | uint64_t src = env->regs[r3]; | |
669 | uint8_t pad = a2 & 0xff; | |
670 | uint8_t v; | |
671 | uint32_t cc; | |
672 | ||
673 | if (!(env->psw.mask & PSW_MASK_64)) { | |
674 | destlen = (uint32_t)destlen; | |
675 | srclen = (uint32_t)srclen; | |
676 | dest &= 0x7fffffff; | |
677 | src &= 0x7fffffff; | |
678 | } | |
679 | ||
680 | if (destlen == srclen) { | |
681 | cc = 0; | |
682 | } else if (destlen < srclen) { | |
683 | cc = 1; | |
684 | } else { | |
685 | cc = 2; | |
686 | } | |
687 | ||
688 | if (srclen > destlen) { | |
689 | srclen = destlen; | |
690 | } | |
691 | ||
692 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
693 | v = cpu_ldub_data(env, src); |
694 | cpu_stb_data(env, dest, v); | |
8ef7f78e BS |
695 | } |
696 | ||
697 | for (; destlen; dest++, destlen--) { | |
19b0516f | 698 | cpu_stb_data(env, dest, pad); |
8ef7f78e BS |
699 | } |
700 | ||
701 | env->regs[r1 + 1] = destlen; | |
702 | /* can't use srclen here, we trunc'ed it */ | |
703 | /* FIXME: 31-bit mode! */ | |
704 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
705 | env->regs[r1] = dest; | |
706 | env->regs[r3] = src; | |
707 | ||
708 | return cc; | |
709 | } | |
710 | ||
711 | /* compare logical long extended memcompare insn with padding */ | |
19b0516f BS |
712 | uint32_t HELPER(clcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, |
713 | uint32_t r3) | |
8ef7f78e BS |
714 | { |
715 | uint64_t destlen = env->regs[r1 + 1]; | |
19b0516f | 716 | uint64_t dest = get_address_31fix(env, r1); |
8ef7f78e | 717 | uint64_t srclen = env->regs[r3 + 1]; |
19b0516f | 718 | uint64_t src = get_address_31fix(env, r3); |
8ef7f78e BS |
719 | uint8_t pad = a2 & 0xff; |
720 | uint8_t v1 = 0, v2 = 0; | |
721 | uint32_t cc = 0; | |
722 | ||
723 | if (!(destlen || srclen)) { | |
724 | return cc; | |
725 | } | |
726 | ||
727 | if (srclen > destlen) { | |
728 | srclen = destlen; | |
729 | } | |
730 | ||
731 | for (; destlen || srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
732 | v1 = srclen ? cpu_ldub_data(env, src) : pad; |
733 | v2 = destlen ? cpu_ldub_data(env, dest) : pad; | |
8ef7f78e BS |
734 | if (v1 != v2) { |
735 | cc = (v1 < v2) ? 1 : 2; | |
736 | break; | |
737 | } | |
738 | } | |
739 | ||
740 | env->regs[r1 + 1] = destlen; | |
741 | /* can't use srclen here, we trunc'ed it */ | |
742 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
743 | env->regs[r1] = dest; | |
744 | env->regs[r3] = src; | |
745 | ||
746 | return cc; | |
747 | } | |
748 | ||
749 | /* checksum */ | |
374724f9 RH |
750 | uint64_t HELPER(cksm)(CPUS390XState *env, uint64_t r1, |
751 | uint64_t src, uint64_t src_len) | |
8ef7f78e | 752 | { |
374724f9 RH |
753 | uint64_t max_len, len; |
754 | uint64_t cksm = (uint32_t)r1; | |
8ef7f78e | 755 | |
374724f9 RH |
756 | /* Lest we fail to service interrupts in a timely manner, limit the |
757 | amount of work we're willing to do. For now, lets cap at 8k. */ | |
758 | max_len = (src_len > 0x2000 ? 0x2000 : src_len); | |
8ef7f78e | 759 | |
374724f9 RH |
760 | /* Process full words as available. */ |
761 | for (len = 0; len + 4 <= max_len; len += 4, src += 4) { | |
762 | cksm += (uint32_t)cpu_ldl_data(env, src); | |
8ef7f78e BS |
763 | } |
764 | ||
374724f9 | 765 | switch (max_len - len) { |
8ef7f78e | 766 | case 1: |
19b0516f | 767 | cksm += cpu_ldub_data(env, src) << 24; |
374724f9 | 768 | len += 1; |
8ef7f78e BS |
769 | break; |
770 | case 2: | |
19b0516f | 771 | cksm += cpu_lduw_data(env, src) << 16; |
374724f9 | 772 | len += 2; |
8ef7f78e BS |
773 | break; |
774 | case 3: | |
19b0516f BS |
775 | cksm += cpu_lduw_data(env, src) << 16; |
776 | cksm += cpu_ldub_data(env, src + 2) << 8; | |
374724f9 | 777 | len += 3; |
8ef7f78e BS |
778 | break; |
779 | } | |
780 | ||
374724f9 RH |
781 | /* Fold the carry from the checksum. Note that we can see carry-out |
782 | during folding more than once (but probably not more than twice). */ | |
783 | while (cksm > 0xffffffffull) { | |
784 | cksm = (uint32_t)cksm + (cksm >> 32); | |
785 | } | |
786 | ||
787 | /* Indicate whether or not we've processed everything. */ | |
788 | env->cc_op = (len == src_len ? 0 : 3); | |
8ef7f78e | 789 | |
374724f9 RH |
790 | /* Return both cksm and processed length. */ |
791 | env->retxl = cksm; | |
792 | return len; | |
8ef7f78e BS |
793 | } |
794 | ||
19b0516f BS |
795 | void HELPER(unpk)(CPUS390XState *env, uint32_t len, uint64_t dest, |
796 | uint64_t src) | |
8ef7f78e BS |
797 | { |
798 | int len_dest = len >> 4; | |
799 | int len_src = len & 0xf; | |
800 | uint8_t b; | |
801 | int second_nibble = 0; | |
802 | ||
803 | dest += len_dest; | |
804 | src += len_src; | |
805 | ||
806 | /* last byte is special, it only flips the nibbles */ | |
19b0516f BS |
807 | b = cpu_ldub_data(env, src); |
808 | cpu_stb_data(env, dest, (b << 4) | (b >> 4)); | |
8ef7f78e BS |
809 | src--; |
810 | len_src--; | |
811 | ||
812 | /* now pad every nibble with 0xf0 */ | |
813 | ||
814 | while (len_dest > 0) { | |
815 | uint8_t cur_byte = 0; | |
816 | ||
817 | if (len_src > 0) { | |
19b0516f | 818 | cur_byte = cpu_ldub_data(env, src); |
8ef7f78e BS |
819 | } |
820 | ||
821 | len_dest--; | |
822 | dest--; | |
823 | ||
824 | /* only advance one nibble at a time */ | |
825 | if (second_nibble) { | |
826 | cur_byte >>= 4; | |
827 | len_src--; | |
828 | src--; | |
829 | } | |
830 | second_nibble = !second_nibble; | |
831 | ||
832 | /* digit */ | |
833 | cur_byte = (cur_byte & 0xf); | |
834 | /* zone bits */ | |
835 | cur_byte |= 0xf0; | |
836 | ||
19b0516f | 837 | cpu_stb_data(env, dest, cur_byte); |
8ef7f78e BS |
838 | } |
839 | } | |
840 | ||
19b0516f BS |
841 | void HELPER(tr)(CPUS390XState *env, uint32_t len, uint64_t array, |
842 | uint64_t trans) | |
8ef7f78e BS |
843 | { |
844 | int i; | |
845 | ||
846 | for (i = 0; i <= len; i++) { | |
19b0516f BS |
847 | uint8_t byte = cpu_ldub_data(env, array + i); |
848 | uint8_t new_byte = cpu_ldub_data(env, trans + byte); | |
8ef7f78e | 849 | |
19b0516f | 850 | cpu_stb_data(env, array + i, new_byte); |
8ef7f78e BS |
851 | } |
852 | } | |
853 | ||
854 | #if !defined(CONFIG_USER_ONLY) | |
19b0516f | 855 | void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
856 | { |
857 | int i; | |
858 | uint64_t src = a2; | |
859 | ||
860 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 861 | env->cregs[i] = cpu_ldq_data(env, src); |
8ef7f78e BS |
862 | HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n", |
863 | i, src, env->cregs[i]); | |
864 | src += sizeof(uint64_t); | |
865 | ||
866 | if (i == r3) { | |
867 | break; | |
868 | } | |
869 | } | |
870 | ||
871 | tlb_flush(env, 1); | |
872 | } | |
873 | ||
19b0516f | 874 | void HELPER(lctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
875 | { |
876 | int i; | |
877 | uint64_t src = a2; | |
878 | ||
879 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f BS |
880 | env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | |
881 | cpu_ldl_data(env, src); | |
8ef7f78e BS |
882 | src += sizeof(uint32_t); |
883 | ||
884 | if (i == r3) { | |
885 | break; | |
886 | } | |
887 | } | |
888 | ||
889 | tlb_flush(env, 1); | |
890 | } | |
891 | ||
19b0516f | 892 | void HELPER(stctg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
893 | { |
894 | int i; | |
895 | uint64_t dest = a2; | |
896 | ||
897 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 898 | cpu_stq_data(env, dest, env->cregs[i]); |
8ef7f78e BS |
899 | dest += sizeof(uint64_t); |
900 | ||
901 | if (i == r3) { | |
902 | break; | |
903 | } | |
904 | } | |
905 | } | |
906 | ||
19b0516f | 907 | void HELPER(stctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
908 | { |
909 | int i; | |
910 | uint64_t dest = a2; | |
911 | ||
912 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 913 | cpu_stl_data(env, dest, env->cregs[i]); |
8ef7f78e BS |
914 | dest += sizeof(uint32_t); |
915 | ||
916 | if (i == r3) { | |
917 | break; | |
918 | } | |
919 | } | |
920 | } | |
921 | ||
922 | uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2) | |
923 | { | |
924 | /* XXX implement */ | |
925 | ||
926 | return 0; | |
927 | } | |
928 | ||
929 | /* insert storage key extended */ | |
19b0516f | 930 | uint64_t HELPER(iske)(CPUS390XState *env, uint64_t r2) |
8ef7f78e | 931 | { |
19b0516f | 932 | uint64_t addr = get_address(env, 0, 0, r2); |
8ef7f78e BS |
933 | |
934 | if (addr > ram_size) { | |
935 | return 0; | |
936 | } | |
937 | ||
938 | return env->storage_keys[addr / TARGET_PAGE_SIZE]; | |
939 | } | |
940 | ||
941 | /* set storage key extended */ | |
19b0516f | 942 | void HELPER(sske)(CPUS390XState *env, uint32_t r1, uint64_t r2) |
8ef7f78e | 943 | { |
19b0516f | 944 | uint64_t addr = get_address(env, 0, 0, r2); |
8ef7f78e BS |
945 | |
946 | if (addr > ram_size) { | |
947 | return; | |
948 | } | |
949 | ||
950 | env->storage_keys[addr / TARGET_PAGE_SIZE] = r1; | |
951 | } | |
952 | ||
953 | /* reset reference bit extended */ | |
19b0516f | 954 | uint32_t HELPER(rrbe)(CPUS390XState *env, uint32_t r1, uint64_t r2) |
8ef7f78e BS |
955 | { |
956 | uint8_t re; | |
957 | uint8_t key; | |
958 | ||
959 | if (r2 > ram_size) { | |
960 | return 0; | |
961 | } | |
962 | ||
963 | key = env->storage_keys[r2 / TARGET_PAGE_SIZE]; | |
964 | re = key & (SK_R | SK_C); | |
965 | env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R); | |
966 | ||
967 | /* | |
968 | * cc | |
969 | * | |
970 | * 0 Reference bit zero; change bit zero | |
971 | * 1 Reference bit zero; change bit one | |
972 | * 2 Reference bit one; change bit zero | |
973 | * 3 Reference bit one; change bit one | |
974 | */ | |
975 | ||
976 | return re >> 1; | |
977 | } | |
978 | ||
979 | /* compare and swap and purge */ | |
19b0516f | 980 | uint32_t HELPER(csp)(CPUS390XState *env, uint32_t r1, uint32_t r2) |
8ef7f78e BS |
981 | { |
982 | uint32_t cc; | |
983 | uint32_t o1 = env->regs[r1]; | |
19b0516f BS |
984 | uint64_t a2 = get_address_31fix(env, r2) & ~3ULL; |
985 | uint32_t o2 = cpu_ldl_data(env, a2); | |
8ef7f78e BS |
986 | |
987 | if (o1 == o2) { | |
19b0516f | 988 | cpu_stl_data(env, a2, env->regs[(r1 + 1) & 15]); |
8ef7f78e BS |
989 | if (env->regs[r2] & 0x3) { |
990 | /* flush TLB / ALB */ | |
991 | tlb_flush(env, 1); | |
992 | } | |
993 | cc = 0; | |
994 | } else { | |
995 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2; | |
996 | cc = 1; | |
997 | } | |
998 | ||
999 | return cc; | |
1000 | } | |
1001 | ||
19b0516f BS |
1002 | static uint32_t mvc_asc(CPUS390XState *env, int64_t l, uint64_t a1, |
1003 | uint64_t mode1, uint64_t a2, uint64_t mode2) | |
8ef7f78e BS |
1004 | { |
1005 | target_ulong src, dest; | |
1006 | int flags, cc = 0, i; | |
1007 | ||
1008 | if (!l) { | |
1009 | return 0; | |
1010 | } else if (l > 256) { | |
1011 | /* max 256 */ | |
1012 | l = 256; | |
1013 | cc = 3; | |
1014 | } | |
1015 | ||
1016 | if (mmu_translate(env, a1 & TARGET_PAGE_MASK, 1, mode1, &dest, &flags)) { | |
1017 | cpu_loop_exit(env); | |
1018 | } | |
1019 | dest |= a1 & ~TARGET_PAGE_MASK; | |
1020 | ||
1021 | if (mmu_translate(env, a2 & TARGET_PAGE_MASK, 0, mode2, &src, &flags)) { | |
1022 | cpu_loop_exit(env); | |
1023 | } | |
1024 | src |= a2 & ~TARGET_PAGE_MASK; | |
1025 | ||
1026 | /* XXX replace w/ memcpy */ | |
1027 | for (i = 0; i < l; i++) { | |
1028 | /* XXX be more clever */ | |
1029 | if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) || | |
1030 | (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) { | |
19b0516f | 1031 | mvc_asc(env, l - i, a1 + i, mode1, a2 + i, mode2); |
8ef7f78e BS |
1032 | break; |
1033 | } | |
1034 | stb_phys(dest + i, ldub_phys(src + i)); | |
1035 | } | |
1036 | ||
1037 | return cc; | |
1038 | } | |
1039 | ||
19b0516f | 1040 | uint32_t HELPER(mvcs)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) |
8ef7f78e BS |
1041 | { |
1042 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
1043 | __func__, l, a1, a2); | |
1044 | ||
19b0516f | 1045 | return mvc_asc(env, l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY); |
8ef7f78e BS |
1046 | } |
1047 | ||
19b0516f | 1048 | uint32_t HELPER(mvcp)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) |
8ef7f78e BS |
1049 | { |
1050 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
1051 | __func__, l, a1, a2); | |
1052 | ||
19b0516f | 1053 | return mvc_asc(env, l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY); |
8ef7f78e BS |
1054 | } |
1055 | ||
1056 | /* invalidate pte */ | |
19b0516f | 1057 | void HELPER(ipte)(CPUS390XState *env, uint64_t pte_addr, uint64_t vaddr) |
8ef7f78e BS |
1058 | { |
1059 | uint64_t page = vaddr & TARGET_PAGE_MASK; | |
1060 | uint64_t pte = 0; | |
1061 | ||
1062 | /* XXX broadcast to other CPUs */ | |
1063 | ||
1064 | /* XXX Linux is nice enough to give us the exact pte address. | |
1065 | According to spec we'd have to find it out ourselves */ | |
1066 | /* XXX Linux is fine with overwriting the pte, the spec requires | |
1067 | us to only set the invalid bit */ | |
1068 | stq_phys(pte_addr, pte | _PAGE_INVALID); | |
1069 | ||
1070 | /* XXX we exploit the fact that Linux passes the exact virtual | |
1071 | address here - it's not obliged to! */ | |
1072 | tlb_flush_page(env, page); | |
1073 | ||
1074 | /* XXX 31-bit hack */ | |
1075 | if (page & 0x80000000) { | |
1076 | tlb_flush_page(env, page & ~0x80000000); | |
1077 | } else { | |
1078 | tlb_flush_page(env, page | 0x80000000); | |
1079 | } | |
1080 | } | |
1081 | ||
1082 | /* flush local tlb */ | |
19b0516f | 1083 | void HELPER(ptlb)(CPUS390XState *env) |
8ef7f78e BS |
1084 | { |
1085 | tlb_flush(env, 1); | |
1086 | } | |
1087 | ||
1088 | /* store using real address */ | |
19b0516f | 1089 | void HELPER(stura)(CPUS390XState *env, uint64_t addr, uint32_t v1) |
8ef7f78e | 1090 | { |
19b0516f | 1091 | stw_phys(get_address(env, 0, 0, addr), v1); |
8ef7f78e BS |
1092 | } |
1093 | ||
1094 | /* load real address */ | |
d8fe4a9c | 1095 | uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr) |
8ef7f78e BS |
1096 | { |
1097 | uint32_t cc = 0; | |
1098 | int old_exc = env->exception_index; | |
1099 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
1100 | uint64_t ret; | |
1101 | int flags; | |
1102 | ||
1103 | /* XXX incomplete - has more corner cases */ | |
1104 | if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { | |
1105 | program_interrupt(env, PGM_SPECIAL_OP, 2); | |
1106 | } | |
1107 | ||
1108 | env->exception_index = old_exc; | |
1109 | if (mmu_translate(env, addr, 0, asc, &ret, &flags)) { | |
1110 | cc = 3; | |
1111 | } | |
1112 | if (env->exception_index == EXCP_PGM) { | |
1113 | ret = env->int_pgm_code | 0x80000000; | |
1114 | } else { | |
1115 | ret |= addr & ~TARGET_PAGE_MASK; | |
1116 | } | |
1117 | env->exception_index = old_exc; | |
1118 | ||
d8fe4a9c RH |
1119 | env->cc_op = cc; |
1120 | return ret; | |
8ef7f78e | 1121 | } |
8ef7f78e | 1122 | #endif |