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[thirdparty/qemu.git] / hw / ppc / spapr_hcall.c
CommitLineData
9c17d615 1#include "sysemu/sysemu.h"
9fdf0c29 2#include "cpu.h"
9c17d615 3#include "sysemu/sysemu.h"
ed120055 4#include "helper_regs.h"
0d09e41a 5#include "hw/ppc/spapr.h"
d5aea6f3 6#include "mmu-hash64.h"
f43e3525 7
f43e3525
DG
8static target_ulong compute_tlbie_rb(target_ulong v, target_ulong r,
9 target_ulong pte_index)
10{
11 target_ulong rb, va_low;
12
13 rb = (v & ~0x7fULL) << 16; /* AVA field */
14 va_low = pte_index >> 3;
d5aea6f3 15 if (v & HPTE64_V_SECONDARY) {
f43e3525
DG
16 va_low = ~va_low;
17 }
18 /* xor vsid from AVA */
d5aea6f3 19 if (!(v & HPTE64_V_1TB_SEG)) {
f43e3525
DG
20 va_low ^= v >> 12;
21 } else {
22 va_low ^= v >> 24;
23 }
24 va_low &= 0x7ff;
d5aea6f3 25 if (v & HPTE64_V_LARGE) {
f43e3525
DG
26 rb |= 1; /* L field */
27#if 0 /* Disable that P7 specific bit for now */
28 if (r & 0xff000) {
29 /* non-16MB large page, must be 64k */
30 /* (masks depend on page size) */
31 rb |= 0x1000; /* page encoding in LP field */
32 rb |= (va_low & 0x7f) << 16; /* 7b of VA in AVA/LP field */
33 rb |= (va_low & 0xfe); /* AVAL field */
34 }
35#endif
36 } else {
37 /* 4kB page */
38 rb |= (va_low & 0x7ff) << 12; /* remaining 11b of AVA */
39 }
40 rb |= (v >> 54) & 0x300; /* B field */
41 return rb;
42}
43
b13ce26d 44static target_ulong h_enter(PowerPCCPU *cpu, sPAPREnvironment *spapr,
f43e3525
DG
45 target_ulong opcode, target_ulong *args)
46{
b13ce26d 47 CPUPPCState *env = &cpu->env;
f43e3525
DG
48 target_ulong flags = args[0];
49 target_ulong pte_index = args[1];
50 target_ulong pteh = args[2];
51 target_ulong ptel = args[3];
f73a2575
DG
52 target_ulong page_shift = 12;
53 target_ulong raddr;
1235a9cf 54 target_ulong i;
dffdaf61 55 hwaddr hpte;
f43e3525
DG
56
57 /* only handle 4k and 16M pages for now */
d5aea6f3 58 if (pteh & HPTE64_V_LARGE) {
f43e3525
DG
59#if 0 /* We don't support 64k pages yet */
60 if ((ptel & 0xf000) == 0x1000) {
61 /* 64k page */
f43e3525
DG
62 } else
63#endif
64 if ((ptel & 0xff000) == 0) {
65 /* 16M page */
f73a2575 66 page_shift = 24;
f43e3525
DG
67 /* lowest AVA bit must be 0 for 16M pages */
68 if (pteh & 0x80) {
69 return H_PARAMETER;
70 }
71 } else {
72 return H_PARAMETER;
73 }
74 }
75
d5aea6f3 76 raddr = (ptel & HPTE64_R_RPN) & ~((1ULL << page_shift) - 1);
f43e3525 77
f73a2575
DG
78 if (raddr < spapr->ram_limit) {
79 /* Regular RAM - should have WIMG=0010 */
d5aea6f3 80 if ((ptel & HPTE64_R_WIMG) != HPTE64_R_M) {
f73a2575
DG
81 return H_PARAMETER;
82 }
83 } else {
84 /* Looks like an IO address */
85 /* FIXME: What WIMG combinations could be sensible for IO?
86 * For now we allow WIMG=010x, but are there others? */
87 /* FIXME: Should we check against registered IO addresses? */
d5aea6f3 88 if ((ptel & (HPTE64_R_W | HPTE64_R_I | HPTE64_R_M)) != HPTE64_R_I) {
f73a2575
DG
89 return H_PARAMETER;
90 }
f43e3525 91 }
f73a2575 92
f43e3525
DG
93 pteh &= ~0x60ULL;
94
95 if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
96 return H_PARAMETER;
97 }
98 if (likely((flags & H_EXACT) == 0)) {
99 pte_index &= ~7ULL;
dffdaf61 100 hpte = pte_index * HASH_PTE_SIZE_64;
f43e3525
DG
101 for (i = 0; ; ++i) {
102 if (i == 8) {
103 return H_PTEG_FULL;
104 }
dffdaf61 105 if ((ppc_hash64_load_hpte0(env, hpte) & HPTE64_V_VALID) == 0) {
f43e3525
DG
106 break;
107 }
108 hpte += HASH_PTE_SIZE_64;
109 }
110 } else {
111 i = 0;
dffdaf61
DG
112 hpte = pte_index * HASH_PTE_SIZE_64;
113 if (ppc_hash64_load_hpte0(env, hpte) & HPTE64_V_VALID) {
f43e3525
DG
114 return H_PTEG_FULL;
115 }
116 }
dffdaf61 117 ppc_hash64_store_hpte1(env, hpte, ptel);
f43e3525 118 /* eieio(); FIXME: need some sort of barrier for smp? */
dffdaf61 119 ppc_hash64_store_hpte0(env, hpte, pteh);
f43e3525 120
f43e3525
DG
121 args[0] = pte_index + i;
122 return H_SUCCESS;
123}
124
a3d0abae
DG
125enum {
126 REMOVE_SUCCESS = 0,
127 REMOVE_NOT_FOUND = 1,
128 REMOVE_PARM = 2,
129 REMOVE_HW = 3,
130};
131
e2684c0b 132static target_ulong remove_hpte(CPUPPCState *env, target_ulong ptex,
a3d0abae
DG
133 target_ulong avpn,
134 target_ulong flags,
135 target_ulong *vp, target_ulong *rp)
f43e3525 136{
dffdaf61 137 hwaddr hpte;
f43e3525
DG
138 target_ulong v, r, rb;
139
a3d0abae
DG
140 if ((ptex * HASH_PTE_SIZE_64) & ~env->htab_mask) {
141 return REMOVE_PARM;
f43e3525
DG
142 }
143
dffdaf61 144 hpte = ptex * HASH_PTE_SIZE_64;
f43e3525 145
dffdaf61
DG
146 v = ppc_hash64_load_hpte0(env, hpte);
147 r = ppc_hash64_load_hpte1(env, hpte);
f43e3525 148
d5aea6f3 149 if ((v & HPTE64_V_VALID) == 0 ||
f43e3525
DG
150 ((flags & H_AVPN) && (v & ~0x7fULL) != avpn) ||
151 ((flags & H_ANDCOND) && (v & avpn) != 0)) {
a3d0abae 152 return REMOVE_NOT_FOUND;
f43e3525 153 }
35f9304d 154 *vp = v;
a3d0abae 155 *rp = r;
dffdaf61 156 ppc_hash64_store_hpte0(env, hpte, 0);
a3d0abae 157 rb = compute_tlbie_rb(v, r, ptex);
f43e3525 158 ppc_tlb_invalidate_one(env, rb);
a3d0abae
DG
159 return REMOVE_SUCCESS;
160}
161
b13ce26d 162static target_ulong h_remove(PowerPCCPU *cpu, sPAPREnvironment *spapr,
a3d0abae
DG
163 target_ulong opcode, target_ulong *args)
164{
b13ce26d 165 CPUPPCState *env = &cpu->env;
a3d0abae
DG
166 target_ulong flags = args[0];
167 target_ulong pte_index = args[1];
168 target_ulong avpn = args[2];
169 int ret;
170
171 ret = remove_hpte(env, pte_index, avpn, flags,
172 &args[0], &args[1]);
173
174 switch (ret) {
175 case REMOVE_SUCCESS:
176 return H_SUCCESS;
177
178 case REMOVE_NOT_FOUND:
179 return H_NOT_FOUND;
180
181 case REMOVE_PARM:
182 return H_PARAMETER;
183
184 case REMOVE_HW:
185 return H_HARDWARE;
186 }
187
188 assert(0);
189}
190
191#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL
192#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL
193#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL
194#define H_BULK_REMOVE_END 0xc000000000000000ULL
195#define H_BULK_REMOVE_CODE 0x3000000000000000ULL
196#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL
197#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL
198#define H_BULK_REMOVE_PARM 0x2000000000000000ULL
199#define H_BULK_REMOVE_HW 0x3000000000000000ULL
200#define H_BULK_REMOVE_RC 0x0c00000000000000ULL
201#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL
202#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL
203#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL
204#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL
205#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL
206
207#define H_BULK_REMOVE_MAX_BATCH 4
208
b13ce26d 209static target_ulong h_bulk_remove(PowerPCCPU *cpu, sPAPREnvironment *spapr,
a3d0abae
DG
210 target_ulong opcode, target_ulong *args)
211{
b13ce26d 212 CPUPPCState *env = &cpu->env;
a3d0abae
DG
213 int i;
214
215 for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) {
216 target_ulong *tsh = &args[i*2];
217 target_ulong tsl = args[i*2 + 1];
218 target_ulong v, r, ret;
219
220 if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) {
221 break;
222 } else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) {
223 return H_PARAMETER;
224 }
225
226 *tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS;
227 *tsh |= H_BULK_REMOVE_RESPONSE;
228
229 if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) {
230 *tsh |= H_BULK_REMOVE_PARM;
231 return H_PARAMETER;
232 }
233
234 ret = remove_hpte(env, *tsh & H_BULK_REMOVE_PTEX, tsl,
235 (*tsh & H_BULK_REMOVE_FLAGS) >> 26,
236 &v, &r);
237
238 *tsh |= ret << 60;
239
240 switch (ret) {
241 case REMOVE_SUCCESS:
d5aea6f3 242 *tsh |= (r & (HPTE64_R_C | HPTE64_R_R)) << 43;
a3d0abae
DG
243 break;
244
245 case REMOVE_PARM:
246 return H_PARAMETER;
247
248 case REMOVE_HW:
249 return H_HARDWARE;
250 }
251 }
252
f43e3525
DG
253 return H_SUCCESS;
254}
255
b13ce26d 256static target_ulong h_protect(PowerPCCPU *cpu, sPAPREnvironment *spapr,
f43e3525
DG
257 target_ulong opcode, target_ulong *args)
258{
b13ce26d 259 CPUPPCState *env = &cpu->env;
f43e3525
DG
260 target_ulong flags = args[0];
261 target_ulong pte_index = args[1];
262 target_ulong avpn = args[2];
dffdaf61 263 hwaddr hpte;
f43e3525
DG
264 target_ulong v, r, rb;
265
266 if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
267 return H_PARAMETER;
268 }
269
dffdaf61 270 hpte = pte_index * HASH_PTE_SIZE_64;
f43e3525 271
dffdaf61
DG
272 v = ppc_hash64_load_hpte0(env, hpte);
273 r = ppc_hash64_load_hpte1(env, hpte);
f43e3525 274
d5aea6f3 275 if ((v & HPTE64_V_VALID) == 0 ||
f43e3525 276 ((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) {
f43e3525
DG
277 return H_NOT_FOUND;
278 }
279
d5aea6f3
DG
280 r &= ~(HPTE64_R_PP0 | HPTE64_R_PP | HPTE64_R_N |
281 HPTE64_R_KEY_HI | HPTE64_R_KEY_LO);
282 r |= (flags << 55) & HPTE64_R_PP0;
283 r |= (flags << 48) & HPTE64_R_KEY_HI;
284 r |= flags & (HPTE64_R_PP | HPTE64_R_N | HPTE64_R_KEY_LO);
f43e3525 285 rb = compute_tlbie_rb(v, r, pte_index);
dffdaf61 286 ppc_hash64_store_hpte0(env, hpte, v & ~HPTE64_V_VALID);
f43e3525 287 ppc_tlb_invalidate_one(env, rb);
dffdaf61 288 ppc_hash64_store_hpte1(env, hpte, r);
f43e3525 289 /* Don't need a memory barrier, due to qemu's global lock */
dffdaf61 290 ppc_hash64_store_hpte0(env, hpte, v);
f43e3525
DG
291 return H_SUCCESS;
292}
293
6bbd5dde
EC
294static target_ulong h_read(PowerPCCPU *cpu, sPAPREnvironment *spapr,
295 target_ulong opcode, target_ulong *args)
296{
297 CPUPPCState *env = &cpu->env;
298 target_ulong flags = args[0];
299 target_ulong pte_index = args[1];
300 uint8_t *hpte;
301 int i, ridx, n_entries = 1;
302
303 if ((pte_index * HASH_PTE_SIZE_64) & ~env->htab_mask) {
304 return H_PARAMETER;
305 }
306
307 if (flags & H_READ_4) {
308 /* Clear the two low order bits */
309 pte_index &= ~(3ULL);
310 n_entries = 4;
311 }
312
313 hpte = env->external_htab + (pte_index * HASH_PTE_SIZE_64);
314
315 for (i = 0, ridx = 0; i < n_entries; i++) {
316 args[ridx++] = ldq_p(hpte);
317 args[ridx++] = ldq_p(hpte + (HASH_PTE_SIZE_64/2));
318 hpte += HASH_PTE_SIZE_64;
319 }
320
321 return H_SUCCESS;
322}
323
b13ce26d 324static target_ulong h_set_dabr(PowerPCCPU *cpu, sPAPREnvironment *spapr,
821303f5
DG
325 target_ulong opcode, target_ulong *args)
326{
327 /* FIXME: actually implement this */
328 return H_HARDWARE;
329}
330
ed120055
DG
331#define FLAGS_REGISTER_VPA 0x0000200000000000ULL
332#define FLAGS_REGISTER_DTL 0x0000400000000000ULL
333#define FLAGS_REGISTER_SLBSHADOW 0x0000600000000000ULL
334#define FLAGS_DEREGISTER_VPA 0x0000a00000000000ULL
335#define FLAGS_DEREGISTER_DTL 0x0000c00000000000ULL
336#define FLAGS_DEREGISTER_SLBSHADOW 0x0000e00000000000ULL
337
338#define VPA_MIN_SIZE 640
339#define VPA_SIZE_OFFSET 0x4
340#define VPA_SHARED_PROC_OFFSET 0x9
341#define VPA_SHARED_PROC_VAL 0x2
342
e2684c0b 343static target_ulong register_vpa(CPUPPCState *env, target_ulong vpa)
ed120055
DG
344{
345 uint16_t size;
346 uint8_t tmp;
347
348 if (vpa == 0) {
349 hcall_dprintf("Can't cope with registering a VPA at logical 0\n");
350 return H_HARDWARE;
351 }
352
353 if (vpa % env->dcache_line_size) {
354 return H_PARAMETER;
355 }
356 /* FIXME: bounds check the address */
357
06c46bba 358 size = lduw_be_phys(vpa + 0x4);
ed120055
DG
359
360 if (size < VPA_MIN_SIZE) {
361 return H_PARAMETER;
362 }
363
364 /* VPA is not allowed to cross a page boundary */
365 if ((vpa / 4096) != ((vpa + size - 1) / 4096)) {
366 return H_PARAMETER;
367 }
368
1bfb37d1 369 env->vpa_addr = vpa;
ed120055 370
1bfb37d1 371 tmp = ldub_phys(env->vpa_addr + VPA_SHARED_PROC_OFFSET);
ed120055 372 tmp |= VPA_SHARED_PROC_VAL;
1bfb37d1 373 stb_phys(env->vpa_addr + VPA_SHARED_PROC_OFFSET, tmp);
ed120055
DG
374
375 return H_SUCCESS;
376}
377
e2684c0b 378static target_ulong deregister_vpa(CPUPPCState *env, target_ulong vpa)
ed120055 379{
1bfb37d1 380 if (env->slb_shadow_addr) {
ed120055
DG
381 return H_RESOURCE;
382 }
383
1bfb37d1 384 if (env->dtl_addr) {
ed120055
DG
385 return H_RESOURCE;
386 }
387
1bfb37d1 388 env->vpa_addr = 0;
ed120055
DG
389 return H_SUCCESS;
390}
391
e2684c0b 392static target_ulong register_slb_shadow(CPUPPCState *env, target_ulong addr)
ed120055
DG
393{
394 uint32_t size;
395
396 if (addr == 0) {
397 hcall_dprintf("Can't cope with SLB shadow at logical 0\n");
398 return H_HARDWARE;
399 }
400
06c46bba 401 size = ldl_be_phys(addr + 0x4);
ed120055
DG
402 if (size < 0x8) {
403 return H_PARAMETER;
404 }
405
406 if ((addr / 4096) != ((addr + size - 1) / 4096)) {
407 return H_PARAMETER;
408 }
409
1bfb37d1 410 if (!env->vpa_addr) {
ed120055
DG
411 return H_RESOURCE;
412 }
413
1bfb37d1
DG
414 env->slb_shadow_addr = addr;
415 env->slb_shadow_size = size;
ed120055
DG
416
417 return H_SUCCESS;
418}
419
e2684c0b 420static target_ulong deregister_slb_shadow(CPUPPCState *env, target_ulong addr)
ed120055 421{
1bfb37d1
DG
422 env->slb_shadow_addr = 0;
423 env->slb_shadow_size = 0;
ed120055
DG
424 return H_SUCCESS;
425}
426
e2684c0b 427static target_ulong register_dtl(CPUPPCState *env, target_ulong addr)
ed120055
DG
428{
429 uint32_t size;
430
431 if (addr == 0) {
432 hcall_dprintf("Can't cope with DTL at logical 0\n");
433 return H_HARDWARE;
434 }
435
06c46bba 436 size = ldl_be_phys(addr + 0x4);
ed120055
DG
437
438 if (size < 48) {
439 return H_PARAMETER;
440 }
441
1bfb37d1 442 if (!env->vpa_addr) {
ed120055
DG
443 return H_RESOURCE;
444 }
445
1bfb37d1 446 env->dtl_addr = addr;
ed120055
DG
447 env->dtl_size = size;
448
449 return H_SUCCESS;
450}
451
73f7821b 452static target_ulong deregister_dtl(CPUPPCState *env, target_ulong addr)
ed120055 453{
1bfb37d1 454 env->dtl_addr = 0;
ed120055
DG
455 env->dtl_size = 0;
456
457 return H_SUCCESS;
458}
459
b13ce26d 460static target_ulong h_register_vpa(PowerPCCPU *cpu, sPAPREnvironment *spapr,
ed120055
DG
461 target_ulong opcode, target_ulong *args)
462{
463 target_ulong flags = args[0];
464 target_ulong procno = args[1];
465 target_ulong vpa = args[2];
466 target_ulong ret = H_PARAMETER;
e2684c0b 467 CPUPPCState *tenv;
55e5c285 468 CPUState *tcpu;
ed120055 469
5353d03d
AF
470 tcpu = qemu_get_cpu(procno);
471 if (!tcpu) {
ed120055
DG
472 return H_PARAMETER;
473 }
5353d03d 474 tenv = tcpu->env_ptr;
ed120055
DG
475
476 switch (flags) {
477 case FLAGS_REGISTER_VPA:
478 ret = register_vpa(tenv, vpa);
479 break;
480
481 case FLAGS_DEREGISTER_VPA:
482 ret = deregister_vpa(tenv, vpa);
483 break;
484
485 case FLAGS_REGISTER_SLBSHADOW:
486 ret = register_slb_shadow(tenv, vpa);
487 break;
488
489 case FLAGS_DEREGISTER_SLBSHADOW:
490 ret = deregister_slb_shadow(tenv, vpa);
491 break;
492
493 case FLAGS_REGISTER_DTL:
494 ret = register_dtl(tenv, vpa);
495 break;
496
497 case FLAGS_DEREGISTER_DTL:
498 ret = deregister_dtl(tenv, vpa);
499 break;
500 }
501
502 return ret;
503}
504
b13ce26d 505static target_ulong h_cede(PowerPCCPU *cpu, sPAPREnvironment *spapr,
ed120055
DG
506 target_ulong opcode, target_ulong *args)
507{
b13ce26d 508 CPUPPCState *env = &cpu->env;
fcd7d003 509 CPUState *cs = CPU(cpu);
b13ce26d 510
ed120055
DG
511 env->msr |= (1ULL << MSR_EE);
512 hreg_compute_hflags(env);
fcd7d003 513 if (!cpu_has_work(cs)) {
259186a7 514 cs->halted = 1;
1dd08894 515 env->exception_index = EXCP_HLT;
fcd7d003 516 cs->exit_request = 1;
ed120055
DG
517 }
518 return H_SUCCESS;
519}
520
b13ce26d 521static target_ulong h_rtas(PowerPCCPU *cpu, sPAPREnvironment *spapr,
39ac8455
DG
522 target_ulong opcode, target_ulong *args)
523{
524 target_ulong rtas_r3 = args[0];
06c46bba
AG
525 uint32_t token = ldl_be_phys(rtas_r3);
526 uint32_t nargs = ldl_be_phys(rtas_r3 + 4);
527 uint32_t nret = ldl_be_phys(rtas_r3 + 8);
39ac8455
DG
528
529 return spapr_rtas_call(spapr, token, nargs, rtas_r3 + 12,
530 nret, rtas_r3 + 12 + 4*nargs);
531}
532
b13ce26d 533static target_ulong h_logical_load(PowerPCCPU *cpu, sPAPREnvironment *spapr,
827200a2
DG
534 target_ulong opcode, target_ulong *args)
535{
536 target_ulong size = args[0];
537 target_ulong addr = args[1];
538
539 switch (size) {
540 case 1:
541 args[0] = ldub_phys(addr);
542 return H_SUCCESS;
543 case 2:
544 args[0] = lduw_phys(addr);
545 return H_SUCCESS;
546 case 4:
547 args[0] = ldl_phys(addr);
548 return H_SUCCESS;
549 case 8:
550 args[0] = ldq_phys(addr);
551 return H_SUCCESS;
552 }
553 return H_PARAMETER;
554}
555
b13ce26d 556static target_ulong h_logical_store(PowerPCCPU *cpu, sPAPREnvironment *spapr,
827200a2
DG
557 target_ulong opcode, target_ulong *args)
558{
559 target_ulong size = args[0];
560 target_ulong addr = args[1];
561 target_ulong val = args[2];
562
563 switch (size) {
564 case 1:
565 stb_phys(addr, val);
566 return H_SUCCESS;
567 case 2:
568 stw_phys(addr, val);
569 return H_SUCCESS;
570 case 4:
571 stl_phys(addr, val);
572 return H_SUCCESS;
573 case 8:
574 stq_phys(addr, val);
575 return H_SUCCESS;
576 }
577 return H_PARAMETER;
578}
579
b13ce26d 580static target_ulong h_logical_memop(PowerPCCPU *cpu, sPAPREnvironment *spapr,
c73e3771
BH
581 target_ulong opcode, target_ulong *args)
582{
583 target_ulong dst = args[0]; /* Destination address */
584 target_ulong src = args[1]; /* Source address */
585 target_ulong esize = args[2]; /* Element size (0=1,1=2,2=4,3=8) */
586 target_ulong count = args[3]; /* Element count */
587 target_ulong op = args[4]; /* 0 = copy, 1 = invert */
588 uint64_t tmp;
589 unsigned int mask = (1 << esize) - 1;
590 int step = 1 << esize;
591
592 if (count > 0x80000000) {
593 return H_PARAMETER;
594 }
595
596 if ((dst & mask) || (src & mask) || (op > 1)) {
597 return H_PARAMETER;
598 }
599
600 if (dst >= src && dst < (src + (count << esize))) {
601 dst = dst + ((count - 1) << esize);
602 src = src + ((count - 1) << esize);
603 step = -step;
604 }
605
606 while (count--) {
607 switch (esize) {
608 case 0:
609 tmp = ldub_phys(src);
610 break;
611 case 1:
612 tmp = lduw_phys(src);
613 break;
614 case 2:
615 tmp = ldl_phys(src);
616 break;
617 case 3:
618 tmp = ldq_phys(src);
619 break;
620 default:
621 return H_PARAMETER;
622 }
623 if (op == 1) {
624 tmp = ~tmp;
625 }
626 switch (esize) {
627 case 0:
628 stb_phys(dst, tmp);
629 break;
630 case 1:
631 stw_phys(dst, tmp);
632 break;
633 case 2:
634 stl_phys(dst, tmp);
635 break;
636 case 3:
637 stq_phys(dst, tmp);
638 break;
639 }
640 dst = dst + step;
641 src = src + step;
642 }
643
644 return H_SUCCESS;
645}
646
b13ce26d 647static target_ulong h_logical_icbi(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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648 target_ulong opcode, target_ulong *args)
649{
650 /* Nothing to do on emulation, KVM will trap this in the kernel */
651 return H_SUCCESS;
652}
653
b13ce26d 654static target_ulong h_logical_dcbf(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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655 target_ulong opcode, target_ulong *args)
656{
657 /* Nothing to do on emulation, KVM will trap this in the kernel */
658 return H_SUCCESS;
659}
660
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661static spapr_hcall_fn papr_hypercall_table[(MAX_HCALL_OPCODE / 4) + 1];
662static spapr_hcall_fn kvmppc_hypercall_table[KVMPPC_HCALL_MAX - KVMPPC_HCALL_BASE + 1];
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663
664void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn)
665{
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666 spapr_hcall_fn *slot;
667
668 if (opcode <= MAX_HCALL_OPCODE) {
669 assert((opcode & 0x3) == 0);
9fdf0c29 670
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671 slot = &papr_hypercall_table[opcode / 4];
672 } else {
673 assert((opcode >= KVMPPC_HCALL_BASE) && (opcode <= KVMPPC_HCALL_MAX));
9fdf0c29 674
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675 slot = &kvmppc_hypercall_table[opcode - KVMPPC_HCALL_BASE];
676 }
9fdf0c29 677
c89d5299 678 assert(!(*slot));
39ac8455 679 *slot = fn;
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680}
681
aa100fa4 682target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode,
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683 target_ulong *args)
684{
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685 if ((opcode <= MAX_HCALL_OPCODE)
686 && ((opcode & 0x3) == 0)) {
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687 spapr_hcall_fn fn = papr_hypercall_table[opcode / 4];
688
689 if (fn) {
b13ce26d 690 return fn(cpu, spapr, opcode, args);
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691 }
692 } else if ((opcode >= KVMPPC_HCALL_BASE) &&
693 (opcode <= KVMPPC_HCALL_MAX)) {
694 spapr_hcall_fn fn = kvmppc_hypercall_table[opcode - KVMPPC_HCALL_BASE];
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695
696 if (fn) {
b13ce26d 697 return fn(cpu, spapr, opcode, args);
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698 }
699 }
700
701 hcall_dprintf("Unimplemented hcall 0x" TARGET_FMT_lx "\n", opcode);
702 return H_FUNCTION;
703}
f43e3525 704
83f7d43a 705static void hypercall_register_types(void)
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706{
707 /* hcall-pft */
708 spapr_register_hypercall(H_ENTER, h_enter);
709 spapr_register_hypercall(H_REMOVE, h_remove);
710 spapr_register_hypercall(H_PROTECT, h_protect);
6bbd5dde 711 spapr_register_hypercall(H_READ, h_read);
39ac8455 712
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713 /* hcall-bulk */
714 spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove);
715
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716 /* hcall-dabr */
717 spapr_register_hypercall(H_SET_DABR, h_set_dabr);
718
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719 /* hcall-splpar */
720 spapr_register_hypercall(H_REGISTER_VPA, h_register_vpa);
721 spapr_register_hypercall(H_CEDE, h_cede);
722
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723 /* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate
724 * here between the "CI" and the "CACHE" variants, they will use whatever
725 * mapping attributes qemu is using. When using KVM, the kernel will
726 * enforce the attributes more strongly
727 */
728 spapr_register_hypercall(H_LOGICAL_CI_LOAD, h_logical_load);
729 spapr_register_hypercall(H_LOGICAL_CI_STORE, h_logical_store);
730 spapr_register_hypercall(H_LOGICAL_CACHE_LOAD, h_logical_load);
731 spapr_register_hypercall(H_LOGICAL_CACHE_STORE, h_logical_store);
732 spapr_register_hypercall(H_LOGICAL_ICBI, h_logical_icbi);
733 spapr_register_hypercall(H_LOGICAL_DCBF, h_logical_dcbf);
c73e3771 734 spapr_register_hypercall(KVMPPC_H_LOGICAL_MEMOP, h_logical_memop);
827200a2 735
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736 /* qemu/KVM-PPC specific hcalls */
737 spapr_register_hypercall(KVMPPC_H_RTAS, h_rtas);
f43e3525 738}
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739
740type_init(hypercall_register_types)