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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" | |
2ef6175a | 22 | #include "exec/helper-proto.h" |
f08b6170 | 23 | #include "exec/cpu_ldst.h" |
8ef7f78e BS |
24 | |
25 | /*****************************************************************************/ | |
26 | /* Softmmu support */ | |
27 | #if !defined(CONFIG_USER_ONLY) | |
8ef7f78e | 28 | |
8ef7f78e BS |
29 | /* try to fill the TLB and return an exception if error. If retaddr is |
30 | NULL, it means that the function was called in C code (i.e. not | |
31 | from generated code or from helper.c) */ | |
32 | /* XXX: fix it to restore all registers */ | |
d5a11fef | 33 | void tlb_fill(CPUState *cs, target_ulong addr, int is_write, int mmu_idx, |
8ef7f78e BS |
34 | uintptr_t retaddr) |
35 | { | |
8ef7f78e BS |
36 | int ret; |
37 | ||
d5a11fef | 38 | ret = s390_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); |
8ef7f78e BS |
39 | if (unlikely(ret != 0)) { |
40 | if (likely(retaddr)) { | |
41 | /* now we have a real cpu fault */ | |
3f38f309 | 42 | cpu_restore_state(cs, retaddr); |
8ef7f78e | 43 | } |
5638d180 | 44 | cpu_loop_exit(cs); |
8ef7f78e | 45 | } |
8ef7f78e BS |
46 | } |
47 | ||
48 | #endif | |
49 | ||
50 | /* #define DEBUG_HELPER */ | |
51 | #ifdef DEBUG_HELPER | |
52 | #define HELPER_LOG(x...) qemu_log(x) | |
53 | #else | |
54 | #define HELPER_LOG(x...) | |
55 | #endif | |
56 | ||
57 | #ifndef CONFIG_USER_ONLY | |
58 | static void mvc_fast_memset(CPUS390XState *env, uint32_t l, uint64_t dest, | |
59 | uint8_t byte) | |
60 | { | |
a47dddd7 | 61 | S390CPU *cpu = s390_env_get_cpu(env); |
a8170e5e AK |
62 | hwaddr dest_phys; |
63 | hwaddr len = l; | |
8ef7f78e BS |
64 | void *dest_p; |
65 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
66 | int flags; | |
67 | ||
e3e09d87 | 68 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags, true)) { |
19b0516f | 69 | cpu_stb_data(env, dest, byte); |
a47dddd7 | 70 | cpu_abort(CPU(cpu), "should never reach here"); |
8ef7f78e BS |
71 | } |
72 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
73 | ||
74 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
75 | ||
76 | memset(dest_p, byte, len); | |
77 | ||
78 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
79 | } | |
80 | ||
81 | static void mvc_fast_memmove(CPUS390XState *env, uint32_t l, uint64_t dest, | |
82 | uint64_t src) | |
83 | { | |
a47dddd7 | 84 | S390CPU *cpu = s390_env_get_cpu(env); |
a8170e5e AK |
85 | hwaddr dest_phys; |
86 | hwaddr src_phys; | |
87 | hwaddr len = l; | |
8ef7f78e BS |
88 | void *dest_p; |
89 | void *src_p; | |
90 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; | |
91 | int flags; | |
92 | ||
e3e09d87 | 93 | if (mmu_translate(env, dest, 1, asc, &dest_phys, &flags, true)) { |
19b0516f | 94 | cpu_stb_data(env, dest, 0); |
a47dddd7 | 95 | cpu_abort(CPU(cpu), "should never reach here"); |
8ef7f78e BS |
96 | } |
97 | dest_phys |= dest & ~TARGET_PAGE_MASK; | |
98 | ||
e3e09d87 | 99 | if (mmu_translate(env, src, 0, asc, &src_phys, &flags, true)) { |
19b0516f | 100 | cpu_ldub_data(env, src); |
a47dddd7 | 101 | cpu_abort(CPU(cpu), "should never reach here"); |
8ef7f78e BS |
102 | } |
103 | src_phys |= src & ~TARGET_PAGE_MASK; | |
104 | ||
105 | dest_p = cpu_physical_memory_map(dest_phys, &len, 1); | |
106 | src_p = cpu_physical_memory_map(src_phys, &len, 0); | |
107 | ||
108 | memmove(dest_p, src_p, len); | |
109 | ||
110 | cpu_physical_memory_unmap(dest_p, 1, len, len); | |
111 | cpu_physical_memory_unmap(src_p, 0, len, len); | |
112 | } | |
113 | #endif | |
114 | ||
115 | /* and on array */ | |
19b0516f BS |
116 | uint32_t HELPER(nc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
117 | uint64_t src) | |
8ef7f78e BS |
118 | { |
119 | int i; | |
120 | unsigned char x; | |
121 | uint32_t cc = 0; | |
122 | ||
123 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
124 | __func__, l, dest, src); | |
125 | for (i = 0; i <= l; i++) { | |
19b0516f | 126 | x = cpu_ldub_data(env, dest + i) & cpu_ldub_data(env, src + i); |
8ef7f78e BS |
127 | if (x) { |
128 | cc = 1; | |
129 | } | |
19b0516f | 130 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
131 | } |
132 | return cc; | |
133 | } | |
134 | ||
135 | /* xor on array */ | |
19b0516f BS |
136 | uint32_t HELPER(xc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
137 | uint64_t src) | |
8ef7f78e BS |
138 | { |
139 | int i; | |
140 | unsigned char x; | |
141 | uint32_t cc = 0; | |
142 | ||
143 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
144 | __func__, l, dest, src); | |
145 | ||
146 | #ifndef CONFIG_USER_ONLY | |
147 | /* xor with itself is the same as memset(0) */ | |
148 | if ((l > 32) && (src == dest) && | |
149 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK)) { | |
150 | mvc_fast_memset(env, l + 1, dest, 0); | |
151 | return 0; | |
152 | } | |
153 | #else | |
154 | if (src == dest) { | |
155 | memset(g2h(dest), 0, l + 1); | |
156 | return 0; | |
157 | } | |
158 | #endif | |
159 | ||
160 | for (i = 0; i <= l; i++) { | |
19b0516f | 161 | x = cpu_ldub_data(env, dest + i) ^ cpu_ldub_data(env, src + i); |
8ef7f78e BS |
162 | if (x) { |
163 | cc = 1; | |
164 | } | |
19b0516f | 165 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
166 | } |
167 | return cc; | |
168 | } | |
169 | ||
170 | /* or on array */ | |
19b0516f BS |
171 | uint32_t HELPER(oc)(CPUS390XState *env, uint32_t l, uint64_t dest, |
172 | uint64_t src) | |
8ef7f78e BS |
173 | { |
174 | int i; | |
175 | unsigned char x; | |
176 | uint32_t cc = 0; | |
177 | ||
178 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
179 | __func__, l, dest, src); | |
180 | for (i = 0; i <= l; i++) { | |
19b0516f | 181 | x = cpu_ldub_data(env, dest + i) | cpu_ldub_data(env, src + i); |
8ef7f78e BS |
182 | if (x) { |
183 | cc = 1; | |
184 | } | |
19b0516f | 185 | cpu_stb_data(env, dest + i, x); |
8ef7f78e BS |
186 | } |
187 | return cc; | |
188 | } | |
189 | ||
190 | /* memmove */ | |
19b0516f | 191 | void HELPER(mvc)(CPUS390XState *env, uint32_t l, uint64_t dest, uint64_t src) |
8ef7f78e BS |
192 | { |
193 | int i = 0; | |
194 | int x = 0; | |
195 | uint32_t l_64 = (l + 1) / 8; | |
196 | ||
197 | HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n", | |
198 | __func__, l, dest, src); | |
199 | ||
200 | #ifndef CONFIG_USER_ONLY | |
201 | if ((l > 32) && | |
202 | (src & TARGET_PAGE_MASK) == ((src + l) & TARGET_PAGE_MASK) && | |
203 | (dest & TARGET_PAGE_MASK) == ((dest + l) & TARGET_PAGE_MASK)) { | |
204 | if (dest == (src + 1)) { | |
19b0516f | 205 | mvc_fast_memset(env, l + 1, dest, cpu_ldub_data(env, src)); |
8ef7f78e BS |
206 | return; |
207 | } else if ((src & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) { | |
208 | mvc_fast_memmove(env, l + 1, dest, src); | |
209 | return; | |
210 | } | |
211 | } | |
212 | #else | |
213 | if (dest == (src + 1)) { | |
19b0516f | 214 | memset(g2h(dest), cpu_ldub_data(env, src), l + 1); |
8ef7f78e BS |
215 | return; |
216 | } else { | |
217 | memmove(g2h(dest), g2h(src), l + 1); | |
218 | return; | |
219 | } | |
220 | #endif | |
221 | ||
222 | /* handle the parts that fit into 8-byte loads/stores */ | |
223 | if (dest != (src + 1)) { | |
224 | for (i = 0; i < l_64; i++) { | |
19b0516f | 225 | cpu_stq_data(env, dest + x, cpu_ldq_data(env, src + x)); |
8ef7f78e BS |
226 | x += 8; |
227 | } | |
228 | } | |
229 | ||
230 | /* slow version crossing pages with byte accesses */ | |
231 | for (i = x; i <= l; i++) { | |
19b0516f | 232 | cpu_stb_data(env, dest + i, cpu_ldub_data(env, src + i)); |
8ef7f78e BS |
233 | } |
234 | } | |
235 | ||
236 | /* compare unsigned byte arrays */ | |
19b0516f | 237 | uint32_t HELPER(clc)(CPUS390XState *env, uint32_t l, uint64_t s1, uint64_t s2) |
8ef7f78e BS |
238 | { |
239 | int i; | |
240 | unsigned char x, y; | |
241 | uint32_t cc; | |
242 | ||
243 | HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n", | |
244 | __func__, l, s1, s2); | |
245 | for (i = 0; i <= l; i++) { | |
19b0516f BS |
246 | x = cpu_ldub_data(env, s1 + i); |
247 | y = cpu_ldub_data(env, s2 + i); | |
8ef7f78e BS |
248 | HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y); |
249 | if (x < y) { | |
250 | cc = 1; | |
251 | goto done; | |
252 | } else if (x > y) { | |
253 | cc = 2; | |
254 | goto done; | |
255 | } | |
256 | } | |
257 | cc = 0; | |
258 | done: | |
259 | HELPER_LOG("\n"); | |
260 | return cc; | |
261 | } | |
262 | ||
263 | /* compare logical under mask */ | |
19b0516f BS |
264 | uint32_t HELPER(clm)(CPUS390XState *env, uint32_t r1, uint32_t mask, |
265 | uint64_t addr) | |
8ef7f78e BS |
266 | { |
267 | uint8_t r, d; | |
268 | uint32_t cc; | |
269 | ||
270 | HELPER_LOG("%s: r1 0x%x mask 0x%x addr 0x%" PRIx64 "\n", __func__, r1, | |
271 | mask, addr); | |
272 | cc = 0; | |
273 | while (mask) { | |
274 | if (mask & 8) { | |
19b0516f | 275 | d = cpu_ldub_data(env, addr); |
8ef7f78e BS |
276 | r = (r1 & 0xff000000UL) >> 24; |
277 | HELPER_LOG("mask 0x%x %02x/%02x (0x%" PRIx64 ") ", mask, r, d, | |
278 | addr); | |
279 | if (r < d) { | |
280 | cc = 1; | |
281 | break; | |
282 | } else if (r > d) { | |
283 | cc = 2; | |
284 | break; | |
285 | } | |
286 | addr++; | |
287 | } | |
288 | mask = (mask << 1) & 0xf; | |
289 | r1 <<= 8; | |
290 | } | |
291 | HELPER_LOG("\n"); | |
292 | return cc; | |
293 | } | |
294 | ||
aa31bf60 RH |
295 | static inline uint64_t fix_address(CPUS390XState *env, uint64_t a) |
296 | { | |
297 | /* 31-Bit mode */ | |
298 | if (!(env->psw.mask & PSW_MASK_64)) { | |
299 | a &= 0x7fffffff; | |
300 | } | |
301 | return a; | |
302 | } | |
303 | ||
19b0516f | 304 | static inline uint64_t get_address(CPUS390XState *env, int x2, int b2, int d2) |
8ef7f78e BS |
305 | { |
306 | uint64_t r = d2; | |
8ef7f78e BS |
307 | if (x2) { |
308 | r += env->regs[x2]; | |
309 | } | |
8ef7f78e BS |
310 | if (b2) { |
311 | r += env->regs[b2]; | |
312 | } | |
aa31bf60 | 313 | return fix_address(env, r); |
8ef7f78e BS |
314 | } |
315 | ||
19b0516f | 316 | static inline uint64_t get_address_31fix(CPUS390XState *env, int reg) |
8ef7f78e | 317 | { |
aa31bf60 | 318 | return fix_address(env, env->regs[reg]); |
8ef7f78e BS |
319 | } |
320 | ||
321 | /* search string (c is byte to search, r2 is string, r1 end of string) */ | |
4600c994 RH |
322 | uint64_t HELPER(srst)(CPUS390XState *env, uint64_t r0, uint64_t end, |
323 | uint64_t str) | |
8ef7f78e | 324 | { |
4600c994 RH |
325 | uint32_t len; |
326 | uint8_t v, c = r0; | |
8ef7f78e | 327 | |
4600c994 RH |
328 | str = fix_address(env, str); |
329 | end = fix_address(env, end); | |
8ef7f78e | 330 | |
4600c994 RH |
331 | /* Assume for now that R2 is unmodified. */ |
332 | env->retxl = str; | |
333 | ||
334 | /* Lest we fail to service interrupts in a timely manner, limit the | |
e03ba136 | 335 | amount of work we're willing to do. For now, let's cap at 8k. */ |
4600c994 RH |
336 | for (len = 0; len < 0x2000; ++len) { |
337 | if (str + len == end) { | |
338 | /* Character not found. R1 & R2 are unmodified. */ | |
339 | env->cc_op = 2; | |
340 | return end; | |
341 | } | |
342 | v = cpu_ldub_data(env, str + len); | |
343 | if (v == c) { | |
344 | /* Character found. Set R1 to the location; R2 is unmodified. */ | |
345 | env->cc_op = 1; | |
346 | return str + len; | |
8ef7f78e BS |
347 | } |
348 | } | |
349 | ||
4600c994 RH |
350 | /* CPU-determined bytes processed. Advance R2 to next byte to process. */ |
351 | env->retxl = str + len; | |
352 | env->cc_op = 3; | |
353 | return end; | |
8ef7f78e BS |
354 | } |
355 | ||
356 | /* unsigned string compare (c is string terminator) */ | |
aa31bf60 | 357 | uint64_t HELPER(clst)(CPUS390XState *env, uint64_t c, uint64_t s1, uint64_t s2) |
8ef7f78e | 358 | { |
aa31bf60 | 359 | uint32_t len; |
8ef7f78e BS |
360 | |
361 | c = c & 0xff; | |
aa31bf60 RH |
362 | s1 = fix_address(env, s1); |
363 | s2 = fix_address(env, s2); | |
364 | ||
365 | /* Lest we fail to service interrupts in a timely manner, limit the | |
e03ba136 | 366 | amount of work we're willing to do. For now, let's cap at 8k. */ |
aa31bf60 RH |
367 | for (len = 0; len < 0x2000; ++len) { |
368 | uint8_t v1 = cpu_ldub_data(env, s1 + len); | |
369 | uint8_t v2 = cpu_ldub_data(env, s2 + len); | |
370 | if (v1 == v2) { | |
371 | if (v1 == c) { | |
372 | /* Equal. CC=0, and don't advance the registers. */ | |
373 | env->cc_op = 0; | |
374 | env->retxl = s2; | |
375 | return s1; | |
376 | } | |
377 | } else { | |
378 | /* Unequal. CC={1,2}, and advance the registers. Note that | |
379 | the terminator need not be zero, but the string that contains | |
380 | the terminator is by definition "low". */ | |
381 | env->cc_op = (v1 == c ? 1 : v2 == c ? 2 : v1 < v2 ? 1 : 2); | |
382 | env->retxl = s2 + len; | |
383 | return s1 + len; | |
8ef7f78e | 384 | } |
8ef7f78e BS |
385 | } |
386 | ||
aa31bf60 RH |
387 | /* CPU-determined bytes equal; advance the registers. */ |
388 | env->cc_op = 3; | |
389 | env->retxl = s2 + len; | |
390 | return s1 + len; | |
8ef7f78e BS |
391 | } |
392 | ||
393 | /* move page */ | |
19b0516f | 394 | void HELPER(mvpg)(CPUS390XState *env, uint64_t r0, uint64_t r1, uint64_t r2) |
8ef7f78e BS |
395 | { |
396 | /* XXX missing r0 handling */ | |
ee6c38d5 | 397 | env->cc_op = 0; |
8ef7f78e | 398 | #ifdef CONFIG_USER_ONLY |
ee6c38d5 | 399 | memmove(g2h(r1), g2h(r2), TARGET_PAGE_SIZE); |
8ef7f78e BS |
400 | #else |
401 | mvc_fast_memmove(env, TARGET_PAGE_SIZE, r1, r2); | |
402 | #endif | |
403 | } | |
404 | ||
405 | /* string copy (c is string terminator) */ | |
aa31bf60 | 406 | uint64_t HELPER(mvst)(CPUS390XState *env, uint64_t c, uint64_t d, uint64_t s) |
8ef7f78e | 407 | { |
aa31bf60 | 408 | uint32_t len; |
8ef7f78e BS |
409 | |
410 | c = c & 0xff; | |
aa31bf60 RH |
411 | d = fix_address(env, d); |
412 | s = fix_address(env, s); | |
413 | ||
414 | /* Lest we fail to service interrupts in a timely manner, limit the | |
e03ba136 | 415 | amount of work we're willing to do. For now, let's cap at 8k. */ |
aa31bf60 RH |
416 | for (len = 0; len < 0x2000; ++len) { |
417 | uint8_t v = cpu_ldub_data(env, s + len); | |
418 | cpu_stb_data(env, d + len, v); | |
8ef7f78e | 419 | if (v == c) { |
aa31bf60 RH |
420 | /* Complete. Set CC=1 and advance R1. */ |
421 | env->cc_op = 1; | |
422 | env->retxl = s; | |
423 | return d + len; | |
8ef7f78e | 424 | } |
8ef7f78e | 425 | } |
aa31bf60 RH |
426 | |
427 | /* Incomplete. Set CC=3 and signal to advance R1 and R2. */ | |
428 | env->cc_op = 3; | |
429 | env->retxl = s + len; | |
430 | return d + len; | |
8ef7f78e BS |
431 | } |
432 | ||
19b0516f BS |
433 | static uint32_t helper_icm(CPUS390XState *env, uint32_t r1, uint64_t address, |
434 | uint32_t mask) | |
8ef7f78e BS |
435 | { |
436 | int pos = 24; /* top of the lower half of r1 */ | |
437 | uint64_t rmask = 0xff000000ULL; | |
438 | uint8_t val = 0; | |
439 | int ccd = 0; | |
440 | uint32_t cc = 0; | |
441 | ||
442 | while (mask) { | |
443 | if (mask & 8) { | |
444 | env->regs[r1] &= ~rmask; | |
19b0516f | 445 | val = cpu_ldub_data(env, address); |
8ef7f78e BS |
446 | if ((val & 0x80) && !ccd) { |
447 | cc = 1; | |
448 | } | |
449 | ccd = 1; | |
450 | if (val && cc == 0) { | |
451 | cc = 2; | |
452 | } | |
453 | env->regs[r1] |= (uint64_t)val << pos; | |
454 | address++; | |
455 | } | |
456 | mask = (mask << 1) & 0xf; | |
457 | pos -= 8; | |
458 | rmask >>= 8; | |
459 | } | |
460 | ||
461 | return cc; | |
462 | } | |
463 | ||
464 | /* execute instruction | |
465 | this instruction executes an insn modified with the contents of r1 | |
466 | it does not change the executed instruction in memory | |
467 | it does not change the program counter | |
468 | in other words: tricky... | |
469 | currently implemented by interpreting the cases it is most commonly used in | |
470 | */ | |
19b0516f BS |
471 | uint32_t HELPER(ex)(CPUS390XState *env, uint32_t cc, uint64_t v1, |
472 | uint64_t addr, uint64_t ret) | |
8ef7f78e | 473 | { |
a47dddd7 | 474 | S390CPU *cpu = s390_env_get_cpu(env); |
19b0516f | 475 | uint16_t insn = cpu_lduw_code(env, addr); |
8ef7f78e BS |
476 | |
477 | HELPER_LOG("%s: v1 0x%lx addr 0x%lx insn 0x%x\n", __func__, v1, addr, | |
478 | insn); | |
479 | if ((insn & 0xf0ff) == 0xd000) { | |
480 | uint32_t l, insn2, b1, b2, d1, d2; | |
481 | ||
482 | l = v1 & 0xff; | |
19b0516f | 483 | insn2 = cpu_ldl_code(env, addr + 2); |
8ef7f78e BS |
484 | b1 = (insn2 >> 28) & 0xf; |
485 | b2 = (insn2 >> 12) & 0xf; | |
486 | d1 = (insn2 >> 16) & 0xfff; | |
487 | d2 = insn2 & 0xfff; | |
488 | switch (insn & 0xf00) { | |
489 | case 0x200: | |
19b0516f BS |
490 | helper_mvc(env, l, get_address(env, 0, b1, d1), |
491 | get_address(env, 0, b2, d2)); | |
8ef7f78e | 492 | break; |
8cf02f93 PB |
493 | case 0x400: |
494 | cc = helper_nc(env, l, get_address(env, 0, b1, d1), | |
495 | get_address(env, 0, b2, d2)); | |
496 | break; | |
8ef7f78e | 497 | case 0x500: |
19b0516f BS |
498 | cc = helper_clc(env, l, get_address(env, 0, b1, d1), |
499 | get_address(env, 0, b2, d2)); | |
8ef7f78e | 500 | break; |
8cf02f93 PB |
501 | case 0x600: |
502 | cc = helper_oc(env, l, get_address(env, 0, b1, d1), | |
503 | get_address(env, 0, b2, d2)); | |
504 | break; | |
8ef7f78e | 505 | case 0x700: |
19b0516f BS |
506 | cc = helper_xc(env, l, get_address(env, 0, b1, d1), |
507 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
508 | break; |
509 | case 0xc00: | |
19b0516f BS |
510 | helper_tr(env, l, get_address(env, 0, b1, d1), |
511 | get_address(env, 0, b2, d2)); | |
8ef7f78e BS |
512 | break; |
513 | default: | |
514 | goto abort; | |
8ef7f78e BS |
515 | } |
516 | } else if ((insn & 0xff00) == 0x0a00) { | |
517 | /* supervisor call */ | |
518 | HELPER_LOG("%s: svc %ld via execute\n", __func__, (insn | v1) & 0xff); | |
519 | env->psw.addr = ret - 4; | |
520 | env->int_svc_code = (insn | v1) & 0xff; | |
d5a103cd | 521 | env->int_svc_ilen = 4; |
089f5c06 | 522 | helper_exception(env, EXCP_SVC); |
8ef7f78e BS |
523 | } else if ((insn & 0xff00) == 0xbf00) { |
524 | uint32_t insn2, r1, r3, b2, d2; | |
525 | ||
19b0516f | 526 | insn2 = cpu_ldl_code(env, addr + 2); |
8ef7f78e BS |
527 | r1 = (insn2 >> 20) & 0xf; |
528 | r3 = (insn2 >> 16) & 0xf; | |
529 | b2 = (insn2 >> 12) & 0xf; | |
530 | d2 = insn2 & 0xfff; | |
19b0516f | 531 | cc = helper_icm(env, r1, get_address(env, 0, b2, d2), r3); |
8ef7f78e BS |
532 | } else { |
533 | abort: | |
a47dddd7 | 534 | cpu_abort(CPU(cpu), "EXECUTE on instruction prefix 0x%x not implemented\n", |
8ef7f78e BS |
535 | insn); |
536 | } | |
537 | return cc; | |
538 | } | |
539 | ||
8ef7f78e | 540 | /* load access registers r1 to r3 from memory at a2 */ |
19b0516f | 541 | void HELPER(lam)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
542 | { |
543 | int i; | |
544 | ||
545 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 546 | env->aregs[i] = cpu_ldl_data(env, a2); |
8ef7f78e BS |
547 | a2 += 4; |
548 | ||
549 | if (i == r3) { | |
550 | break; | |
551 | } | |
552 | } | |
553 | } | |
554 | ||
555 | /* store access registers r1 to r3 in memory at a2 */ | |
19b0516f | 556 | void HELPER(stam)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
557 | { |
558 | int i; | |
559 | ||
560 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 561 | cpu_stl_data(env, a2, env->aregs[i]); |
8ef7f78e BS |
562 | a2 += 4; |
563 | ||
564 | if (i == r3) { | |
565 | break; | |
566 | } | |
567 | } | |
568 | } | |
569 | ||
570 | /* move long */ | |
19b0516f | 571 | uint32_t HELPER(mvcl)(CPUS390XState *env, uint32_t r1, uint32_t r2) |
8ef7f78e BS |
572 | { |
573 | uint64_t destlen = env->regs[r1 + 1] & 0xffffff; | |
19b0516f | 574 | uint64_t dest = get_address_31fix(env, r1); |
8ef7f78e | 575 | uint64_t srclen = env->regs[r2 + 1] & 0xffffff; |
19b0516f | 576 | uint64_t src = get_address_31fix(env, r2); |
8ef7f78e BS |
577 | uint8_t pad = src >> 24; |
578 | uint8_t v; | |
579 | uint32_t cc; | |
580 | ||
581 | if (destlen == srclen) { | |
582 | cc = 0; | |
583 | } else if (destlen < srclen) { | |
584 | cc = 1; | |
585 | } else { | |
586 | cc = 2; | |
587 | } | |
588 | ||
589 | if (srclen > destlen) { | |
590 | srclen = destlen; | |
591 | } | |
592 | ||
593 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
594 | v = cpu_ldub_data(env, src); |
595 | cpu_stb_data(env, dest, v); | |
8ef7f78e BS |
596 | } |
597 | ||
598 | for (; destlen; dest++, destlen--) { | |
19b0516f | 599 | cpu_stb_data(env, dest, pad); |
8ef7f78e BS |
600 | } |
601 | ||
602 | env->regs[r1 + 1] = destlen; | |
603 | /* can't use srclen here, we trunc'ed it */ | |
604 | env->regs[r2 + 1] -= src - env->regs[r2]; | |
605 | env->regs[r1] = dest; | |
606 | env->regs[r2] = src; | |
607 | ||
608 | return cc; | |
609 | } | |
610 | ||
611 | /* move long extended another memcopy insn with more bells and whistles */ | |
19b0516f BS |
612 | uint32_t HELPER(mvcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, |
613 | uint32_t r3) | |
8ef7f78e BS |
614 | { |
615 | uint64_t destlen = env->regs[r1 + 1]; | |
616 | uint64_t dest = env->regs[r1]; | |
617 | uint64_t srclen = env->regs[r3 + 1]; | |
618 | uint64_t src = env->regs[r3]; | |
619 | uint8_t pad = a2 & 0xff; | |
620 | uint8_t v; | |
621 | uint32_t cc; | |
622 | ||
623 | if (!(env->psw.mask & PSW_MASK_64)) { | |
624 | destlen = (uint32_t)destlen; | |
625 | srclen = (uint32_t)srclen; | |
626 | dest &= 0x7fffffff; | |
627 | src &= 0x7fffffff; | |
628 | } | |
629 | ||
630 | if (destlen == srclen) { | |
631 | cc = 0; | |
632 | } else if (destlen < srclen) { | |
633 | cc = 1; | |
634 | } else { | |
635 | cc = 2; | |
636 | } | |
637 | ||
638 | if (srclen > destlen) { | |
639 | srclen = destlen; | |
640 | } | |
641 | ||
642 | for (; destlen && srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
643 | v = cpu_ldub_data(env, src); |
644 | cpu_stb_data(env, dest, v); | |
8ef7f78e BS |
645 | } |
646 | ||
647 | for (; destlen; dest++, destlen--) { | |
19b0516f | 648 | cpu_stb_data(env, dest, pad); |
8ef7f78e BS |
649 | } |
650 | ||
651 | env->regs[r1 + 1] = destlen; | |
652 | /* can't use srclen here, we trunc'ed it */ | |
653 | /* FIXME: 31-bit mode! */ | |
654 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
655 | env->regs[r1] = dest; | |
656 | env->regs[r3] = src; | |
657 | ||
658 | return cc; | |
659 | } | |
660 | ||
661 | /* compare logical long extended memcompare insn with padding */ | |
19b0516f BS |
662 | uint32_t HELPER(clcle)(CPUS390XState *env, uint32_t r1, uint64_t a2, |
663 | uint32_t r3) | |
8ef7f78e BS |
664 | { |
665 | uint64_t destlen = env->regs[r1 + 1]; | |
19b0516f | 666 | uint64_t dest = get_address_31fix(env, r1); |
8ef7f78e | 667 | uint64_t srclen = env->regs[r3 + 1]; |
19b0516f | 668 | uint64_t src = get_address_31fix(env, r3); |
8ef7f78e BS |
669 | uint8_t pad = a2 & 0xff; |
670 | uint8_t v1 = 0, v2 = 0; | |
671 | uint32_t cc = 0; | |
672 | ||
673 | if (!(destlen || srclen)) { | |
674 | return cc; | |
675 | } | |
676 | ||
677 | if (srclen > destlen) { | |
678 | srclen = destlen; | |
679 | } | |
680 | ||
681 | for (; destlen || srclen; src++, dest++, destlen--, srclen--) { | |
19b0516f BS |
682 | v1 = srclen ? cpu_ldub_data(env, src) : pad; |
683 | v2 = destlen ? cpu_ldub_data(env, dest) : pad; | |
8ef7f78e BS |
684 | if (v1 != v2) { |
685 | cc = (v1 < v2) ? 1 : 2; | |
686 | break; | |
687 | } | |
688 | } | |
689 | ||
690 | env->regs[r1 + 1] = destlen; | |
691 | /* can't use srclen here, we trunc'ed it */ | |
692 | env->regs[r3 + 1] -= src - env->regs[r3]; | |
693 | env->regs[r1] = dest; | |
694 | env->regs[r3] = src; | |
695 | ||
696 | return cc; | |
697 | } | |
698 | ||
699 | /* checksum */ | |
374724f9 RH |
700 | uint64_t HELPER(cksm)(CPUS390XState *env, uint64_t r1, |
701 | uint64_t src, uint64_t src_len) | |
8ef7f78e | 702 | { |
374724f9 RH |
703 | uint64_t max_len, len; |
704 | uint64_t cksm = (uint32_t)r1; | |
8ef7f78e | 705 | |
374724f9 | 706 | /* Lest we fail to service interrupts in a timely manner, limit the |
e03ba136 | 707 | amount of work we're willing to do. For now, let's cap at 8k. */ |
374724f9 | 708 | max_len = (src_len > 0x2000 ? 0x2000 : src_len); |
8ef7f78e | 709 | |
374724f9 RH |
710 | /* Process full words as available. */ |
711 | for (len = 0; len + 4 <= max_len; len += 4, src += 4) { | |
712 | cksm += (uint32_t)cpu_ldl_data(env, src); | |
8ef7f78e BS |
713 | } |
714 | ||
374724f9 | 715 | switch (max_len - len) { |
8ef7f78e | 716 | case 1: |
19b0516f | 717 | cksm += cpu_ldub_data(env, src) << 24; |
374724f9 | 718 | len += 1; |
8ef7f78e BS |
719 | break; |
720 | case 2: | |
19b0516f | 721 | cksm += cpu_lduw_data(env, src) << 16; |
374724f9 | 722 | len += 2; |
8ef7f78e BS |
723 | break; |
724 | case 3: | |
19b0516f BS |
725 | cksm += cpu_lduw_data(env, src) << 16; |
726 | cksm += cpu_ldub_data(env, src + 2) << 8; | |
374724f9 | 727 | len += 3; |
8ef7f78e BS |
728 | break; |
729 | } | |
730 | ||
374724f9 RH |
731 | /* Fold the carry from the checksum. Note that we can see carry-out |
732 | during folding more than once (but probably not more than twice). */ | |
733 | while (cksm > 0xffffffffull) { | |
734 | cksm = (uint32_t)cksm + (cksm >> 32); | |
735 | } | |
736 | ||
737 | /* Indicate whether or not we've processed everything. */ | |
738 | env->cc_op = (len == src_len ? 0 : 3); | |
8ef7f78e | 739 | |
374724f9 RH |
740 | /* Return both cksm and processed length. */ |
741 | env->retxl = cksm; | |
742 | return len; | |
8ef7f78e BS |
743 | } |
744 | ||
19b0516f BS |
745 | void HELPER(unpk)(CPUS390XState *env, uint32_t len, uint64_t dest, |
746 | uint64_t src) | |
8ef7f78e BS |
747 | { |
748 | int len_dest = len >> 4; | |
749 | int len_src = len & 0xf; | |
750 | uint8_t b; | |
751 | int second_nibble = 0; | |
752 | ||
753 | dest += len_dest; | |
754 | src += len_src; | |
755 | ||
756 | /* last byte is special, it only flips the nibbles */ | |
19b0516f BS |
757 | b = cpu_ldub_data(env, src); |
758 | cpu_stb_data(env, dest, (b << 4) | (b >> 4)); | |
8ef7f78e BS |
759 | src--; |
760 | len_src--; | |
761 | ||
762 | /* now pad every nibble with 0xf0 */ | |
763 | ||
764 | while (len_dest > 0) { | |
765 | uint8_t cur_byte = 0; | |
766 | ||
767 | if (len_src > 0) { | |
19b0516f | 768 | cur_byte = cpu_ldub_data(env, src); |
8ef7f78e BS |
769 | } |
770 | ||
771 | len_dest--; | |
772 | dest--; | |
773 | ||
774 | /* only advance one nibble at a time */ | |
775 | if (second_nibble) { | |
776 | cur_byte >>= 4; | |
777 | len_src--; | |
778 | src--; | |
779 | } | |
780 | second_nibble = !second_nibble; | |
781 | ||
782 | /* digit */ | |
783 | cur_byte = (cur_byte & 0xf); | |
784 | /* zone bits */ | |
785 | cur_byte |= 0xf0; | |
786 | ||
19b0516f | 787 | cpu_stb_data(env, dest, cur_byte); |
8ef7f78e BS |
788 | } |
789 | } | |
790 | ||
19b0516f BS |
791 | void HELPER(tr)(CPUS390XState *env, uint32_t len, uint64_t array, |
792 | uint64_t trans) | |
8ef7f78e BS |
793 | { |
794 | int i; | |
795 | ||
796 | for (i = 0; i <= len; i++) { | |
19b0516f BS |
797 | uint8_t byte = cpu_ldub_data(env, array + i); |
798 | uint8_t new_byte = cpu_ldub_data(env, trans + byte); | |
8ef7f78e | 799 | |
19b0516f | 800 | cpu_stb_data(env, array + i, new_byte); |
8ef7f78e BS |
801 | } |
802 | } | |
803 | ||
804 | #if !defined(CONFIG_USER_ONLY) | |
19b0516f | 805 | void HELPER(lctlg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e | 806 | { |
00c8cb0a | 807 | S390CPU *cpu = s390_env_get_cpu(env); |
8ef7f78e BS |
808 | int i; |
809 | uint64_t src = a2; | |
810 | ||
811 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 812 | env->cregs[i] = cpu_ldq_data(env, src); |
8ef7f78e BS |
813 | HELPER_LOG("load ctl %d from 0x%" PRIx64 " == 0x%" PRIx64 "\n", |
814 | i, src, env->cregs[i]); | |
815 | src += sizeof(uint64_t); | |
816 | ||
817 | if (i == r3) { | |
818 | break; | |
819 | } | |
820 | } | |
821 | ||
00c8cb0a | 822 | tlb_flush(CPU(cpu), 1); |
8ef7f78e BS |
823 | } |
824 | ||
19b0516f | 825 | void HELPER(lctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e | 826 | { |
00c8cb0a | 827 | S390CPU *cpu = s390_env_get_cpu(env); |
8ef7f78e BS |
828 | int i; |
829 | uint64_t src = a2; | |
830 | ||
831 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f BS |
832 | env->cregs[i] = (env->cregs[i] & 0xFFFFFFFF00000000ULL) | |
833 | cpu_ldl_data(env, src); | |
8ef7f78e BS |
834 | src += sizeof(uint32_t); |
835 | ||
836 | if (i == r3) { | |
837 | break; | |
838 | } | |
839 | } | |
840 | ||
00c8cb0a | 841 | tlb_flush(CPU(cpu), 1); |
8ef7f78e BS |
842 | } |
843 | ||
19b0516f | 844 | void HELPER(stctg)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
845 | { |
846 | int i; | |
847 | uint64_t dest = a2; | |
848 | ||
849 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 850 | cpu_stq_data(env, dest, env->cregs[i]); |
8ef7f78e BS |
851 | dest += sizeof(uint64_t); |
852 | ||
853 | if (i == r3) { | |
854 | break; | |
855 | } | |
856 | } | |
857 | } | |
858 | ||
19b0516f | 859 | void HELPER(stctl)(CPUS390XState *env, uint32_t r1, uint64_t a2, uint32_t r3) |
8ef7f78e BS |
860 | { |
861 | int i; | |
862 | uint64_t dest = a2; | |
863 | ||
864 | for (i = r1;; i = (i + 1) % 16) { | |
19b0516f | 865 | cpu_stl_data(env, dest, env->cregs[i]); |
8ef7f78e BS |
866 | dest += sizeof(uint32_t); |
867 | ||
868 | if (i == r3) { | |
869 | break; | |
870 | } | |
871 | } | |
872 | } | |
873 | ||
874 | uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2) | |
875 | { | |
876 | /* XXX implement */ | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | /* insert storage key extended */ | |
19b0516f | 882 | uint64_t HELPER(iske)(CPUS390XState *env, uint64_t r2) |
8ef7f78e | 883 | { |
19b0516f | 884 | uint64_t addr = get_address(env, 0, 0, r2); |
8ef7f78e BS |
885 | |
886 | if (addr > ram_size) { | |
887 | return 0; | |
888 | } | |
889 | ||
890 | return env->storage_keys[addr / TARGET_PAGE_SIZE]; | |
891 | } | |
892 | ||
893 | /* set storage key extended */ | |
2bbde27f | 894 | void HELPER(sske)(CPUS390XState *env, uint64_t r1, uint64_t r2) |
8ef7f78e | 895 | { |
19b0516f | 896 | uint64_t addr = get_address(env, 0, 0, r2); |
8ef7f78e BS |
897 | |
898 | if (addr > ram_size) { | |
899 | return; | |
900 | } | |
901 | ||
902 | env->storage_keys[addr / TARGET_PAGE_SIZE] = r1; | |
903 | } | |
904 | ||
905 | /* reset reference bit extended */ | |
5cc69c54 | 906 | uint32_t HELPER(rrbe)(CPUS390XState *env, uint64_t r2) |
8ef7f78e BS |
907 | { |
908 | uint8_t re; | |
909 | uint8_t key; | |
910 | ||
911 | if (r2 > ram_size) { | |
912 | return 0; | |
913 | } | |
914 | ||
915 | key = env->storage_keys[r2 / TARGET_PAGE_SIZE]; | |
916 | re = key & (SK_R | SK_C); | |
917 | env->storage_keys[r2 / TARGET_PAGE_SIZE] = (key & ~SK_R); | |
918 | ||
919 | /* | |
920 | * cc | |
921 | * | |
922 | * 0 Reference bit zero; change bit zero | |
923 | * 1 Reference bit zero; change bit one | |
924 | * 2 Reference bit one; change bit zero | |
925 | * 3 Reference bit one; change bit one | |
926 | */ | |
927 | ||
928 | return re >> 1; | |
929 | } | |
930 | ||
931 | /* compare and swap and purge */ | |
3d596f49 | 932 | uint32_t HELPER(csp)(CPUS390XState *env, uint32_t r1, uint64_t r2) |
8ef7f78e | 933 | { |
00c8cb0a | 934 | S390CPU *cpu = s390_env_get_cpu(env); |
8ef7f78e BS |
935 | uint32_t cc; |
936 | uint32_t o1 = env->regs[r1]; | |
3d596f49 | 937 | uint64_t a2 = r2 & ~3ULL; |
19b0516f | 938 | uint32_t o2 = cpu_ldl_data(env, a2); |
8ef7f78e BS |
939 | |
940 | if (o1 == o2) { | |
19b0516f | 941 | cpu_stl_data(env, a2, env->regs[(r1 + 1) & 15]); |
3d596f49 | 942 | if (r2 & 0x3) { |
8ef7f78e | 943 | /* flush TLB / ALB */ |
00c8cb0a | 944 | tlb_flush(CPU(cpu), 1); |
8ef7f78e BS |
945 | } |
946 | cc = 0; | |
947 | } else { | |
948 | env->regs[r1] = (env->regs[r1] & 0xffffffff00000000ULL) | o2; | |
949 | cc = 1; | |
950 | } | |
951 | ||
952 | return cc; | |
953 | } | |
954 | ||
19b0516f BS |
955 | static uint32_t mvc_asc(CPUS390XState *env, int64_t l, uint64_t a1, |
956 | uint64_t mode1, uint64_t a2, uint64_t mode2) | |
8ef7f78e | 957 | { |
2efc6be2 | 958 | CPUState *cs = CPU(s390_env_get_cpu(env)); |
8ef7f78e BS |
959 | target_ulong src, dest; |
960 | int flags, cc = 0, i; | |
961 | ||
962 | if (!l) { | |
963 | return 0; | |
964 | } else if (l > 256) { | |
965 | /* max 256 */ | |
966 | l = 256; | |
967 | cc = 3; | |
968 | } | |
969 | ||
e3e09d87 | 970 | if (mmu_translate(env, a1, 1, mode1, &dest, &flags, true)) { |
5638d180 | 971 | cpu_loop_exit(CPU(s390_env_get_cpu(env))); |
8ef7f78e BS |
972 | } |
973 | dest |= a1 & ~TARGET_PAGE_MASK; | |
974 | ||
e3e09d87 | 975 | if (mmu_translate(env, a2, 0, mode2, &src, &flags, true)) { |
5638d180 | 976 | cpu_loop_exit(CPU(s390_env_get_cpu(env))); |
8ef7f78e BS |
977 | } |
978 | src |= a2 & ~TARGET_PAGE_MASK; | |
979 | ||
980 | /* XXX replace w/ memcpy */ | |
981 | for (i = 0; i < l; i++) { | |
982 | /* XXX be more clever */ | |
983 | if ((((dest + i) & TARGET_PAGE_MASK) != (dest & TARGET_PAGE_MASK)) || | |
984 | (((src + i) & TARGET_PAGE_MASK) != (src & TARGET_PAGE_MASK))) { | |
19b0516f | 985 | mvc_asc(env, l - i, a1 + i, mode1, a2 + i, mode2); |
8ef7f78e BS |
986 | break; |
987 | } | |
db3be60d | 988 | stb_phys(cs->as, dest + i, ldub_phys(cs->as, src + i)); |
8ef7f78e BS |
989 | } |
990 | ||
991 | return cc; | |
992 | } | |
993 | ||
19b0516f | 994 | uint32_t HELPER(mvcs)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) |
8ef7f78e BS |
995 | { |
996 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
997 | __func__, l, a1, a2); | |
998 | ||
19b0516f | 999 | return mvc_asc(env, l, a1, PSW_ASC_SECONDARY, a2, PSW_ASC_PRIMARY); |
8ef7f78e BS |
1000 | } |
1001 | ||
19b0516f | 1002 | uint32_t HELPER(mvcp)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) |
8ef7f78e BS |
1003 | { |
1004 | HELPER_LOG("%s: %16" PRIx64 " %16" PRIx64 " %16" PRIx64 "\n", | |
1005 | __func__, l, a1, a2); | |
1006 | ||
19b0516f | 1007 | return mvc_asc(env, l, a1, PSW_ASC_PRIMARY, a2, PSW_ASC_SECONDARY); |
8ef7f78e BS |
1008 | } |
1009 | ||
1010 | /* invalidate pte */ | |
19b0516f | 1011 | void HELPER(ipte)(CPUS390XState *env, uint64_t pte_addr, uint64_t vaddr) |
8ef7f78e | 1012 | { |
2efc6be2 | 1013 | CPUState *cs = CPU(s390_env_get_cpu(env)); |
8ef7f78e BS |
1014 | uint64_t page = vaddr & TARGET_PAGE_MASK; |
1015 | uint64_t pte = 0; | |
1016 | ||
1017 | /* XXX broadcast to other CPUs */ | |
1018 | ||
1019 | /* XXX Linux is nice enough to give us the exact pte address. | |
1020 | According to spec we'd have to find it out ourselves */ | |
1021 | /* XXX Linux is fine with overwriting the pte, the spec requires | |
1022 | us to only set the invalid bit */ | |
f606604f | 1023 | stq_phys(cs->as, pte_addr, pte | _PAGE_INVALID); |
8ef7f78e BS |
1024 | |
1025 | /* XXX we exploit the fact that Linux passes the exact virtual | |
1026 | address here - it's not obliged to! */ | |
31b030d4 | 1027 | tlb_flush_page(cs, page); |
8ef7f78e BS |
1028 | |
1029 | /* XXX 31-bit hack */ | |
1030 | if (page & 0x80000000) { | |
31b030d4 | 1031 | tlb_flush_page(cs, page & ~0x80000000); |
8ef7f78e | 1032 | } else { |
31b030d4 | 1033 | tlb_flush_page(cs, page | 0x80000000); |
8ef7f78e BS |
1034 | } |
1035 | } | |
1036 | ||
1037 | /* flush local tlb */ | |
19b0516f | 1038 | void HELPER(ptlb)(CPUS390XState *env) |
8ef7f78e | 1039 | { |
00c8cb0a AF |
1040 | S390CPU *cpu = s390_env_get_cpu(env); |
1041 | ||
1042 | tlb_flush(CPU(cpu), 1); | |
8ef7f78e BS |
1043 | } |
1044 | ||
9c3fd85b RH |
1045 | /* load using real address */ |
1046 | uint64_t HELPER(lura)(CPUS390XState *env, uint64_t addr) | |
1047 | { | |
1048 | CPUState *cs = CPU(s390_env_get_cpu(env)); | |
1049 | ||
1050 | return (uint32_t)ldl_phys(cs->as, get_address(env, 0, 0, addr)); | |
1051 | } | |
1052 | ||
1053 | uint64_t HELPER(lurag)(CPUS390XState *env, uint64_t addr) | |
1054 | { | |
1055 | CPUState *cs = CPU(s390_env_get_cpu(env)); | |
1056 | ||
1057 | return ldq_phys(cs->as, get_address(env, 0, 0, addr)); | |
1058 | } | |
1059 | ||
8ef7f78e | 1060 | /* store using real address */ |
204504e2 | 1061 | void HELPER(stura)(CPUS390XState *env, uint64_t addr, uint64_t v1) |
8ef7f78e | 1062 | { |
2efc6be2 AF |
1063 | CPUState *cs = CPU(s390_env_get_cpu(env)); |
1064 | ||
81822c2f | 1065 | stl_phys(cs->as, get_address(env, 0, 0, addr), (uint32_t)v1); |
8ef7f78e BS |
1066 | } |
1067 | ||
9c3fd85b RH |
1068 | void HELPER(sturg)(CPUS390XState *env, uint64_t addr, uint64_t v1) |
1069 | { | |
1070 | CPUState *cs = CPU(s390_env_get_cpu(env)); | |
1071 | ||
1072 | stq_phys(cs->as, get_address(env, 0, 0, addr), v1); | |
1073 | } | |
1074 | ||
8ef7f78e | 1075 | /* load real address */ |
d8fe4a9c | 1076 | uint64_t HELPER(lra)(CPUS390XState *env, uint64_t addr) |
8ef7f78e | 1077 | { |
27103424 | 1078 | CPUState *cs = CPU(s390_env_get_cpu(env)); |
8ef7f78e | 1079 | uint32_t cc = 0; |
27103424 | 1080 | int old_exc = cs->exception_index; |
8ef7f78e BS |
1081 | uint64_t asc = env->psw.mask & PSW_MASK_ASC; |
1082 | uint64_t ret; | |
1083 | int flags; | |
1084 | ||
1085 | /* XXX incomplete - has more corner cases */ | |
1086 | if (!(env->psw.mask & PSW_MASK_64) && (addr >> 32)) { | |
1087 | program_interrupt(env, PGM_SPECIAL_OP, 2); | |
1088 | } | |
1089 | ||
27103424 | 1090 | cs->exception_index = old_exc; |
e3e09d87 | 1091 | if (mmu_translate(env, addr, 0, asc, &ret, &flags, true)) { |
8ef7f78e BS |
1092 | cc = 3; |
1093 | } | |
27103424 | 1094 | if (cs->exception_index == EXCP_PGM) { |
8ef7f78e BS |
1095 | ret = env->int_pgm_code | 0x80000000; |
1096 | } else { | |
1097 | ret |= addr & ~TARGET_PAGE_MASK; | |
1098 | } | |
27103424 | 1099 | cs->exception_index = old_exc; |
8ef7f78e | 1100 | |
d8fe4a9c RH |
1101 | env->cc_op = cc; |
1102 | return ret; | |
8ef7f78e | 1103 | } |
8ef7f78e | 1104 | #endif |