xref: /openbmc/qemu/target/sparc/cpu.c (revision 3d592ffb)
1 /*
2  * Sparc CPU init helpers
3  *
4  *  Copyright (c) 2003-2005 Fabrice Bellard
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
22 #include "cpu.h"
23 #include "qemu/error-report.h"
24 #include "exec/exec-all.h"
25 #include "hw/qdev-properties.h"
26 #include "qapi/visitor.h"
27 
28 //#define DEBUG_FEATURES
29 
30 /* CPUClass::reset() */
31 static void sparc_cpu_reset(CPUState *s)
32 {
33     SPARCCPU *cpu = SPARC_CPU(s);
34     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(cpu);
35     CPUSPARCState *env = &cpu->env;
36 
37     scc->parent_reset(s);
38 
39     memset(env, 0, offsetof(CPUSPARCState, end_reset_fields));
40     env->cwp = 0;
41 #ifndef TARGET_SPARC64
42     env->wim = 1;
43 #endif
44     env->regwptr = env->regbase + (env->cwp * 16);
45     CC_OP = CC_OP_FLAGS;
46 #if defined(CONFIG_USER_ONLY)
47 #ifdef TARGET_SPARC64
48     env->cleanwin = env->nwindows - 2;
49     env->cansave = env->nwindows - 2;
50     env->pstate = PS_RMO | PS_PEF | PS_IE;
51     env->asi = 0x82; /* Primary no-fault */
52 #endif
53 #else
54 #if !defined(TARGET_SPARC64)
55     env->psret = 0;
56     env->psrs = 1;
57     env->psrps = 1;
58 #endif
59 #ifdef TARGET_SPARC64
60     env->pstate = PS_PRIV | PS_RED | PS_PEF;
61     if (!cpu_has_hypervisor(env)) {
62         env->pstate |= PS_AG;
63     }
64     env->hpstate = cpu_has_hypervisor(env) ? HS_PRIV : 0;
65     env->tl = env->maxtl;
66     env->gl = 2;
67     cpu_tsptr(env)->tt = TT_POWER_ON_RESET;
68     env->lsu = 0;
69 #else
70     env->mmuregs[0] &= ~(MMU_E | MMU_NF);
71     env->mmuregs[0] |= env->def.mmu_bm;
72 #endif
73     env->pc = 0;
74     env->npc = env->pc + 4;
75 #endif
76     env->cache_control = 0;
77 }
78 
79 static bool sparc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
80 {
81     if (interrupt_request & CPU_INTERRUPT_HARD) {
82         SPARCCPU *cpu = SPARC_CPU(cs);
83         CPUSPARCState *env = &cpu->env;
84 
85         if (cpu_interrupts_enabled(env) && env->interrupt_index > 0) {
86             int pil = env->interrupt_index & 0xf;
87             int type = env->interrupt_index & 0xf0;
88 
89             if (type != TT_EXTINT || cpu_pil_allowed(env, pil)) {
90                 cs->exception_index = env->interrupt_index;
91                 sparc_cpu_do_interrupt(cs);
92                 return true;
93             }
94         }
95     }
96     return false;
97 }
98 
99 static void cpu_sparc_disas_set_info(CPUState *cpu, disassemble_info *info)
100 {
101     info->print_insn = print_insn_sparc;
102 #ifdef TARGET_SPARC64
103     info->mach = bfd_mach_sparc_v9b;
104 #endif
105 }
106 
107 static void
108 cpu_add_feat_as_prop(const char *typename, const char *name, const char *val)
109 {
110     GlobalProperty *prop = g_new0(typeof(*prop), 1);
111     prop->driver = typename;
112     prop->property = g_strdup(name);
113     prop->value = g_strdup(val);
114     prop->errp = &error_fatal;
115     qdev_prop_register_global(prop);
116 }
117 
118 /* Parse "+feature,-feature,feature=foo" CPU feature string */
119 static void sparc_cpu_parse_features(const char *typename, char *features,
120                                      Error **errp)
121 {
122     GList *l, *plus_features = NULL, *minus_features = NULL;
123     char *featurestr; /* Single 'key=value" string being parsed */
124     static bool cpu_globals_initialized;
125 
126     if (cpu_globals_initialized) {
127         return;
128     }
129     cpu_globals_initialized = true;
130 
131     if (!features) {
132         return;
133     }
134 
135     for (featurestr = strtok(features, ",");
136          featurestr;
137          featurestr = strtok(NULL, ",")) {
138         const char *name;
139         const char *val = NULL;
140         char *eq = NULL;
141 
142         /* Compatibility syntax: */
143         if (featurestr[0] == '+') {
144             plus_features = g_list_append(plus_features,
145                                           g_strdup(featurestr + 1));
146             continue;
147         } else if (featurestr[0] == '-') {
148             minus_features = g_list_append(minus_features,
149                                            g_strdup(featurestr + 1));
150             continue;
151         }
152 
153         eq = strchr(featurestr, '=');
154         name = featurestr;
155         if (eq) {
156             *eq++ = 0;
157             val = eq;
158 
159             /*
160              * Temporarily, only +feat/-feat will be supported
161              * for boolean properties until we remove the
162              * minus-overrides-plus semantics and just follow
163              * the order options appear on the command-line.
164              *
165              * TODO: warn if user is relying on minus-override-plus semantics
166              * TODO: remove minus-override-plus semantics after
167              *       warning for a few releases
168              */
169             if (!strcasecmp(val, "on") ||
170                 !strcasecmp(val, "off") ||
171                 !strcasecmp(val, "true") ||
172                 !strcasecmp(val, "false")) {
173                 error_setg(errp, "Boolean properties in format %s=%s"
174                                  " are not supported", name, val);
175                 return;
176             }
177         } else {
178             error_setg(errp, "Unsupported property format: %s", name);
179             return;
180         }
181         cpu_add_feat_as_prop(typename, name, val);
182     }
183 
184     for (l = plus_features; l; l = l->next) {
185         const char *name = l->data;
186         cpu_add_feat_as_prop(typename, name, "on");
187     }
188     g_list_free_full(plus_features, g_free);
189 
190     for (l = minus_features; l; l = l->next) {
191         const char *name = l->data;
192         cpu_add_feat_as_prop(typename, name, "off");
193     }
194     g_list_free_full(minus_features, g_free);
195 }
196 
197 void cpu_sparc_set_id(CPUSPARCState *env, unsigned int cpu)
198 {
199 #if !defined(TARGET_SPARC64)
200     env->mxccregs[7] = ((cpu + 8) & 0xf) << 24;
201 #endif
202 }
203 
204 static const sparc_def_t sparc_defs[] = {
205 #ifdef TARGET_SPARC64
206     {
207         .name = "Fujitsu Sparc64",
208         .iu_version = ((0x04ULL << 48) | (0x02ULL << 32) | (0ULL << 24)),
209         .fpu_version = 0x00000000,
210         .mmu_version = mmu_us_12,
211         .nwindows = 4,
212         .maxtl = 4,
213         .features = CPU_DEFAULT_FEATURES,
214     },
215     {
216         .name = "Fujitsu Sparc64 III",
217         .iu_version = ((0x04ULL << 48) | (0x03ULL << 32) | (0ULL << 24)),
218         .fpu_version = 0x00000000,
219         .mmu_version = mmu_us_12,
220         .nwindows = 5,
221         .maxtl = 4,
222         .features = CPU_DEFAULT_FEATURES,
223     },
224     {
225         .name = "Fujitsu Sparc64 IV",
226         .iu_version = ((0x04ULL << 48) | (0x04ULL << 32) | (0ULL << 24)),
227         .fpu_version = 0x00000000,
228         .mmu_version = mmu_us_12,
229         .nwindows = 8,
230         .maxtl = 5,
231         .features = CPU_DEFAULT_FEATURES,
232     },
233     {
234         .name = "Fujitsu Sparc64 V",
235         .iu_version = ((0x04ULL << 48) | (0x05ULL << 32) | (0x51ULL << 24)),
236         .fpu_version = 0x00000000,
237         .mmu_version = mmu_us_12,
238         .nwindows = 8,
239         .maxtl = 5,
240         .features = CPU_DEFAULT_FEATURES,
241     },
242     {
243         .name = "TI UltraSparc I",
244         .iu_version = ((0x17ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
245         .fpu_version = 0x00000000,
246         .mmu_version = mmu_us_12,
247         .nwindows = 8,
248         .maxtl = 5,
249         .features = CPU_DEFAULT_FEATURES,
250     },
251     {
252         .name = "TI UltraSparc II",
253         .iu_version = ((0x17ULL << 48) | (0x11ULL << 32) | (0x20ULL << 24)),
254         .fpu_version = 0x00000000,
255         .mmu_version = mmu_us_12,
256         .nwindows = 8,
257         .maxtl = 5,
258         .features = CPU_DEFAULT_FEATURES,
259     },
260     {
261         .name = "TI UltraSparc IIi",
262         .iu_version = ((0x17ULL << 48) | (0x12ULL << 32) | (0x91ULL << 24)),
263         .fpu_version = 0x00000000,
264         .mmu_version = mmu_us_12,
265         .nwindows = 8,
266         .maxtl = 5,
267         .features = CPU_DEFAULT_FEATURES,
268     },
269     {
270         .name = "TI UltraSparc IIe",
271         .iu_version = ((0x17ULL << 48) | (0x13ULL << 32) | (0x14ULL << 24)),
272         .fpu_version = 0x00000000,
273         .mmu_version = mmu_us_12,
274         .nwindows = 8,
275         .maxtl = 5,
276         .features = CPU_DEFAULT_FEATURES,
277     },
278     {
279         .name = "Sun UltraSparc III",
280         .iu_version = ((0x3eULL << 48) | (0x14ULL << 32) | (0x34ULL << 24)),
281         .fpu_version = 0x00000000,
282         .mmu_version = mmu_us_12,
283         .nwindows = 8,
284         .maxtl = 5,
285         .features = CPU_DEFAULT_FEATURES,
286     },
287     {
288         .name = "Sun UltraSparc III Cu",
289         .iu_version = ((0x3eULL << 48) | (0x15ULL << 32) | (0x41ULL << 24)),
290         .fpu_version = 0x00000000,
291         .mmu_version = mmu_us_3,
292         .nwindows = 8,
293         .maxtl = 5,
294         .features = CPU_DEFAULT_FEATURES,
295     },
296     {
297         .name = "Sun UltraSparc IIIi",
298         .iu_version = ((0x3eULL << 48) | (0x16ULL << 32) | (0x34ULL << 24)),
299         .fpu_version = 0x00000000,
300         .mmu_version = mmu_us_12,
301         .nwindows = 8,
302         .maxtl = 5,
303         .features = CPU_DEFAULT_FEATURES,
304     },
305     {
306         .name = "Sun UltraSparc IV",
307         .iu_version = ((0x3eULL << 48) | (0x18ULL << 32) | (0x31ULL << 24)),
308         .fpu_version = 0x00000000,
309         .mmu_version = mmu_us_4,
310         .nwindows = 8,
311         .maxtl = 5,
312         .features = CPU_DEFAULT_FEATURES,
313     },
314     {
315         .name = "Sun UltraSparc IV+",
316         .iu_version = ((0x3eULL << 48) | (0x19ULL << 32) | (0x22ULL << 24)),
317         .fpu_version = 0x00000000,
318         .mmu_version = mmu_us_12,
319         .nwindows = 8,
320         .maxtl = 5,
321         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_CMT,
322     },
323     {
324         .name = "Sun UltraSparc IIIi+",
325         .iu_version = ((0x3eULL << 48) | (0x22ULL << 32) | (0ULL << 24)),
326         .fpu_version = 0x00000000,
327         .mmu_version = mmu_us_3,
328         .nwindows = 8,
329         .maxtl = 5,
330         .features = CPU_DEFAULT_FEATURES,
331     },
332     {
333         .name = "Sun UltraSparc T1",
334         /* defined in sparc_ifu_fdp.v and ctu.h */
335         .iu_version = ((0x3eULL << 48) | (0x23ULL << 32) | (0x02ULL << 24)),
336         .fpu_version = 0x00000000,
337         .mmu_version = mmu_sun4v,
338         .nwindows = 8,
339         .maxtl = 6,
340         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
341         | CPU_FEATURE_GL,
342     },
343     {
344         .name = "Sun UltraSparc T2",
345         /* defined in tlu_asi_ctl.v and n2_revid_cust.v */
346         .iu_version = ((0x3eULL << 48) | (0x24ULL << 32) | (0x02ULL << 24)),
347         .fpu_version = 0x00000000,
348         .mmu_version = mmu_sun4v,
349         .nwindows = 8,
350         .maxtl = 6,
351         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_HYPV | CPU_FEATURE_CMT
352         | CPU_FEATURE_GL,
353     },
354     {
355         .name = "NEC UltraSparc I",
356         .iu_version = ((0x22ULL << 48) | (0x10ULL << 32) | (0x40ULL << 24)),
357         .fpu_version = 0x00000000,
358         .mmu_version = mmu_us_12,
359         .nwindows = 8,
360         .maxtl = 5,
361         .features = CPU_DEFAULT_FEATURES,
362     },
363 #else
364     {
365         .name = "Fujitsu MB86904",
366         .iu_version = 0x04 << 24, /* Impl 0, ver 4 */
367         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
368         .mmu_version = 0x04 << 24, /* Impl 0, ver 4 */
369         .mmu_bm = 0x00004000,
370         .mmu_ctpr_mask = 0x00ffffc0,
371         .mmu_cxr_mask = 0x000000ff,
372         .mmu_sfsr_mask = 0x00016fff,
373         .mmu_trcr_mask = 0x00ffffff,
374         .nwindows = 8,
375         .features = CPU_DEFAULT_FEATURES,
376     },
377     {
378         .name = "Fujitsu MB86907",
379         .iu_version = 0x05 << 24, /* Impl 0, ver 5 */
380         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
381         .mmu_version = 0x05 << 24, /* Impl 0, ver 5 */
382         .mmu_bm = 0x00004000,
383         .mmu_ctpr_mask = 0xffffffc0,
384         .mmu_cxr_mask = 0x000000ff,
385         .mmu_sfsr_mask = 0x00016fff,
386         .mmu_trcr_mask = 0xffffffff,
387         .nwindows = 8,
388         .features = CPU_DEFAULT_FEATURES,
389     },
390     {
391         .name = "TI MicroSparc I",
392         .iu_version = 0x41000000,
393         .fpu_version = 4 << 17,
394         .mmu_version = 0x41000000,
395         .mmu_bm = 0x00004000,
396         .mmu_ctpr_mask = 0x007ffff0,
397         .mmu_cxr_mask = 0x0000003f,
398         .mmu_sfsr_mask = 0x00016fff,
399         .mmu_trcr_mask = 0x0000003f,
400         .nwindows = 7,
401         .features = CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | CPU_FEATURE_MUL |
402         CPU_FEATURE_DIV | CPU_FEATURE_FLUSH | CPU_FEATURE_FSQRT |
403         CPU_FEATURE_FMUL,
404     },
405     {
406         .name = "TI MicroSparc II",
407         .iu_version = 0x42000000,
408         .fpu_version = 4 << 17,
409         .mmu_version = 0x02000000,
410         .mmu_bm = 0x00004000,
411         .mmu_ctpr_mask = 0x00ffffc0,
412         .mmu_cxr_mask = 0x000000ff,
413         .mmu_sfsr_mask = 0x00016fff,
414         .mmu_trcr_mask = 0x00ffffff,
415         .nwindows = 8,
416         .features = CPU_DEFAULT_FEATURES,
417     },
418     {
419         .name = "TI MicroSparc IIep",
420         .iu_version = 0x42000000,
421         .fpu_version = 4 << 17,
422         .mmu_version = 0x04000000,
423         .mmu_bm = 0x00004000,
424         .mmu_ctpr_mask = 0x00ffffc0,
425         .mmu_cxr_mask = 0x000000ff,
426         .mmu_sfsr_mask = 0x00016bff,
427         .mmu_trcr_mask = 0x00ffffff,
428         .nwindows = 8,
429         .features = CPU_DEFAULT_FEATURES,
430     },
431     {
432         .name = "TI SuperSparc 40", /* STP1020NPGA */
433         .iu_version = 0x41000000, /* SuperSPARC 2.x */
434         .fpu_version = 0 << 17,
435         .mmu_version = 0x00000800, /* SuperSPARC 2.x, no MXCC */
436         .mmu_bm = 0x00002000,
437         .mmu_ctpr_mask = 0xffffffc0,
438         .mmu_cxr_mask = 0x0000ffff,
439         .mmu_sfsr_mask = 0xffffffff,
440         .mmu_trcr_mask = 0xffffffff,
441         .nwindows = 8,
442         .features = CPU_DEFAULT_FEATURES,
443     },
444     {
445         .name = "TI SuperSparc 50", /* STP1020PGA */
446         .iu_version = 0x40000000, /* SuperSPARC 3.x */
447         .fpu_version = 0 << 17,
448         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
449         .mmu_bm = 0x00002000,
450         .mmu_ctpr_mask = 0xffffffc0,
451         .mmu_cxr_mask = 0x0000ffff,
452         .mmu_sfsr_mask = 0xffffffff,
453         .mmu_trcr_mask = 0xffffffff,
454         .nwindows = 8,
455         .features = CPU_DEFAULT_FEATURES,
456     },
457     {
458         .name = "TI SuperSparc 51",
459         .iu_version = 0x40000000, /* SuperSPARC 3.x */
460         .fpu_version = 0 << 17,
461         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
462         .mmu_bm = 0x00002000,
463         .mmu_ctpr_mask = 0xffffffc0,
464         .mmu_cxr_mask = 0x0000ffff,
465         .mmu_sfsr_mask = 0xffffffff,
466         .mmu_trcr_mask = 0xffffffff,
467         .mxcc_version = 0x00000104,
468         .nwindows = 8,
469         .features = CPU_DEFAULT_FEATURES,
470     },
471     {
472         .name = "TI SuperSparc 60", /* STP1020APGA */
473         .iu_version = 0x40000000, /* SuperSPARC 3.x */
474         .fpu_version = 0 << 17,
475         .mmu_version = 0x01000800, /* SuperSPARC 3.x, no MXCC */
476         .mmu_bm = 0x00002000,
477         .mmu_ctpr_mask = 0xffffffc0,
478         .mmu_cxr_mask = 0x0000ffff,
479         .mmu_sfsr_mask = 0xffffffff,
480         .mmu_trcr_mask = 0xffffffff,
481         .nwindows = 8,
482         .features = CPU_DEFAULT_FEATURES,
483     },
484     {
485         .name = "TI SuperSparc 61",
486         .iu_version = 0x44000000, /* SuperSPARC 3.x */
487         .fpu_version = 0 << 17,
488         .mmu_version = 0x01000000, /* SuperSPARC 3.x, MXCC */
489         .mmu_bm = 0x00002000,
490         .mmu_ctpr_mask = 0xffffffc0,
491         .mmu_cxr_mask = 0x0000ffff,
492         .mmu_sfsr_mask = 0xffffffff,
493         .mmu_trcr_mask = 0xffffffff,
494         .mxcc_version = 0x00000104,
495         .nwindows = 8,
496         .features = CPU_DEFAULT_FEATURES,
497     },
498     {
499         .name = "TI SuperSparc II",
500         .iu_version = 0x40000000, /* SuperSPARC II 1.x */
501         .fpu_version = 0 << 17,
502         .mmu_version = 0x08000000, /* SuperSPARC II 1.x, MXCC */
503         .mmu_bm = 0x00002000,
504         .mmu_ctpr_mask = 0xffffffc0,
505         .mmu_cxr_mask = 0x0000ffff,
506         .mmu_sfsr_mask = 0xffffffff,
507         .mmu_trcr_mask = 0xffffffff,
508         .mxcc_version = 0x00000104,
509         .nwindows = 8,
510         .features = CPU_DEFAULT_FEATURES,
511     },
512     {
513         .name = "LEON2",
514         .iu_version = 0xf2000000,
515         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
516         .mmu_version = 0xf2000000,
517         .mmu_bm = 0x00004000,
518         .mmu_ctpr_mask = 0x007ffff0,
519         .mmu_cxr_mask = 0x0000003f,
520         .mmu_sfsr_mask = 0xffffffff,
521         .mmu_trcr_mask = 0xffffffff,
522         .nwindows = 8,
523         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN,
524     },
525     {
526         .name = "LEON3",
527         .iu_version = 0xf3000000,
528         .fpu_version = 4 << 17, /* FPU version 4 (Meiko) */
529         .mmu_version = 0xf3000000,
530         .mmu_bm = 0x00000000,
531         .mmu_ctpr_mask = 0xfffffffc,
532         .mmu_cxr_mask = 0x000000ff,
533         .mmu_sfsr_mask = 0xffffffff,
534         .mmu_trcr_mask = 0xffffffff,
535         .nwindows = 8,
536         .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN |
537         CPU_FEATURE_ASR17 | CPU_FEATURE_CACHE_CTRL | CPU_FEATURE_POWERDOWN |
538         CPU_FEATURE_CASA,
539     },
540 #endif
541 };
542 
543 static const char * const feature_name[] = {
544     "float",
545     "float128",
546     "swap",
547     "mul",
548     "div",
549     "flush",
550     "fsqrt",
551     "fmul",
552     "vis1",
553     "vis2",
554     "fsmuld",
555     "hypv",
556     "cmt",
557     "gl",
558 };
559 
560 static void print_features(FILE *f, fprintf_function cpu_fprintf,
561                            uint32_t features, const char *prefix)
562 {
563     unsigned int i;
564 
565     for (i = 0; i < ARRAY_SIZE(feature_name); i++) {
566         if (feature_name[i] && (features & (1 << i))) {
567             if (prefix) {
568                 (*cpu_fprintf)(f, "%s", prefix);
569             }
570             (*cpu_fprintf)(f, "%s ", feature_name[i]);
571         }
572     }
573 }
574 
575 void sparc_cpu_list(FILE *f, fprintf_function cpu_fprintf)
576 {
577     unsigned int i;
578 
579     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
580         (*cpu_fprintf)(f, "Sparc %16s IU " TARGET_FMT_lx
581                        " FPU %08x MMU %08x NWINS %d ",
582                        sparc_defs[i].name,
583                        sparc_defs[i].iu_version,
584                        sparc_defs[i].fpu_version,
585                        sparc_defs[i].mmu_version,
586                        sparc_defs[i].nwindows);
587         print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES &
588                        ~sparc_defs[i].features, "-");
589         print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES &
590                        sparc_defs[i].features, "+");
591         (*cpu_fprintf)(f, "\n");
592     }
593     (*cpu_fprintf)(f, "Default CPU feature flags (use '-' to remove): ");
594     print_features(f, cpu_fprintf, CPU_DEFAULT_FEATURES, NULL);
595     (*cpu_fprintf)(f, "\n");
596     (*cpu_fprintf)(f, "Available CPU feature flags (use '+' to add): ");
597     print_features(f, cpu_fprintf, ~CPU_DEFAULT_FEATURES, NULL);
598     (*cpu_fprintf)(f, "\n");
599     (*cpu_fprintf)(f, "Numerical features (use '=' to set): iu_version "
600                    "fpu_version mmu_version nwindows\n");
601 }
602 
603 static void cpu_print_cc(FILE *f, fprintf_function cpu_fprintf,
604                          uint32_t cc)
605 {
606     cpu_fprintf(f, "%c%c%c%c", cc & PSR_NEG ? 'N' : '-',
607                 cc & PSR_ZERO ? 'Z' : '-', cc & PSR_OVF ? 'V' : '-',
608                 cc & PSR_CARRY ? 'C' : '-');
609 }
610 
611 #ifdef TARGET_SPARC64
612 #define REGS_PER_LINE 4
613 #else
614 #define REGS_PER_LINE 8
615 #endif
616 
617 void sparc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
618                           int flags)
619 {
620     SPARCCPU *cpu = SPARC_CPU(cs);
621     CPUSPARCState *env = &cpu->env;
622     int i, x;
623 
624     cpu_fprintf(f, "pc: " TARGET_FMT_lx "  npc: " TARGET_FMT_lx "\n", env->pc,
625                 env->npc);
626 
627     for (i = 0; i < 8; i++) {
628         if (i % REGS_PER_LINE == 0) {
629             cpu_fprintf(f, "%%g%d-%d:", i, i + REGS_PER_LINE - 1);
630         }
631         cpu_fprintf(f, " " TARGET_FMT_lx, env->gregs[i]);
632         if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
633             cpu_fprintf(f, "\n");
634         }
635     }
636     for (x = 0; x < 3; x++) {
637         for (i = 0; i < 8; i++) {
638             if (i % REGS_PER_LINE == 0) {
639                 cpu_fprintf(f, "%%%c%d-%d: ",
640                             x == 0 ? 'o' : (x == 1 ? 'l' : 'i'),
641                             i, i + REGS_PER_LINE - 1);
642             }
643             cpu_fprintf(f, TARGET_FMT_lx " ", env->regwptr[i + x * 8]);
644             if (i % REGS_PER_LINE == REGS_PER_LINE - 1) {
645                 cpu_fprintf(f, "\n");
646             }
647         }
648     }
649 
650     for (i = 0; i < TARGET_DPREGS; i++) {
651         if ((i & 3) == 0) {
652             cpu_fprintf(f, "%%f%02d: ", i * 2);
653         }
654         cpu_fprintf(f, " %016" PRIx64, env->fpr[i].ll);
655         if ((i & 3) == 3) {
656             cpu_fprintf(f, "\n");
657         }
658     }
659 #ifdef TARGET_SPARC64
660     cpu_fprintf(f, "pstate: %08x ccr: %02x (icc: ", env->pstate,
661                 (unsigned)cpu_get_ccr(env));
662     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << PSR_CARRY_SHIFT);
663     cpu_fprintf(f, " xcc: ");
664     cpu_print_cc(f, cpu_fprintf, cpu_get_ccr(env) << (PSR_CARRY_SHIFT - 4));
665     cpu_fprintf(f, ") asi: %02x tl: %d pil: %x gl: %d\n", env->asi, env->tl,
666                 env->psrpil, env->gl);
667     cpu_fprintf(f, "tbr: " TARGET_FMT_lx " hpstate: " TARGET_FMT_lx " htba: "
668                 TARGET_FMT_lx "\n", env->tbr, env->hpstate, env->htba);
669     cpu_fprintf(f, "cansave: %d canrestore: %d otherwin: %d wstate: %d "
670                 "cleanwin: %d cwp: %d\n",
671                 env->cansave, env->canrestore, env->otherwin, env->wstate,
672                 env->cleanwin, env->nwindows - 1 - env->cwp);
673     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx " fprs: "
674                 TARGET_FMT_lx "\n", env->fsr, env->y, env->fprs);
675 
676 #else
677     cpu_fprintf(f, "psr: %08x (icc: ", cpu_get_psr(env));
678     cpu_print_cc(f, cpu_fprintf, cpu_get_psr(env));
679     cpu_fprintf(f, " SPE: %c%c%c) wim: %08x\n", env->psrs ? 'S' : '-',
680                 env->psrps ? 'P' : '-', env->psret ? 'E' : '-',
681                 env->wim);
682     cpu_fprintf(f, "fsr: " TARGET_FMT_lx " y: " TARGET_FMT_lx "\n",
683                 env->fsr, env->y);
684 #endif
685     cpu_fprintf(f, "\n");
686 }
687 
688 static void sparc_cpu_set_pc(CPUState *cs, vaddr value)
689 {
690     SPARCCPU *cpu = SPARC_CPU(cs);
691 
692     cpu->env.pc = value;
693     cpu->env.npc = value + 4;
694 }
695 
696 static void sparc_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
697 {
698     SPARCCPU *cpu = SPARC_CPU(cs);
699 
700     cpu->env.pc = tb->pc;
701     cpu->env.npc = tb->cs_base;
702 }
703 
704 static bool sparc_cpu_has_work(CPUState *cs)
705 {
706     SPARCCPU *cpu = SPARC_CPU(cs);
707     CPUSPARCState *env = &cpu->env;
708 
709     return (cs->interrupt_request & CPU_INTERRUPT_HARD) &&
710            cpu_interrupts_enabled(env);
711 }
712 
713 static char *sparc_cpu_type_name(const char *cpu_model)
714 {
715     char *name = g_strdup_printf("%s-" TYPE_SPARC_CPU, cpu_model);
716     char *s = name;
717 
718     /* SPARC cpu model names happen to have whitespaces,
719      * as type names shouldn't have spaces replace them with '-'
720      */
721     while ((s = strchr(s, ' '))) {
722         *s = '-';
723     }
724 
725     return name;
726 }
727 
728 static ObjectClass *sparc_cpu_class_by_name(const char *cpu_model)
729 {
730     ObjectClass *oc;
731     char *typename;
732 
733     if (cpu_model == NULL) {
734         return NULL;
735     }
736 
737     typename = sparc_cpu_type_name(cpu_model);
738     oc = object_class_by_name(typename);
739     g_free(typename);
740     return oc;
741 }
742 
743 static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
744 {
745     CPUState *cs = CPU(dev);
746     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev);
747     Error *local_err = NULL;
748     SPARCCPU *cpu = SPARC_CPU(dev);
749     CPUSPARCState *env = &cpu->env;
750 
751 #if defined(CONFIG_USER_ONLY)
752     if ((env->def.features & CPU_FEATURE_FLOAT)) {
753         env->def.features |= CPU_FEATURE_FLOAT128;
754     }
755 #endif
756 
757     env->version = env->def.iu_version;
758     env->fsr = env->def.fpu_version;
759     env->nwindows = env->def.nwindows;
760 #if !defined(TARGET_SPARC64)
761     env->mmuregs[0] |= env->def.mmu_version;
762     cpu_sparc_set_id(env, 0);
763     env->mxccregs[7] |= env->def.mxcc_version;
764 #else
765     env->mmu_version = env->def.mmu_version;
766     env->maxtl = env->def.maxtl;
767     env->version |= env->def.maxtl << 8;
768     env->version |= env->def.nwindows - 1;
769 #endif
770 
771     cpu_exec_realizefn(cs, &local_err);
772     if (local_err != NULL) {
773         error_propagate(errp, local_err);
774         return;
775     }
776 
777     qemu_init_vcpu(cs);
778 
779     scc->parent_realize(dev, errp);
780 }
781 
782 static void sparc_cpu_initfn(Object *obj)
783 {
784     CPUState *cs = CPU(obj);
785     SPARCCPU *cpu = SPARC_CPU(obj);
786     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(obj);
787     CPUSPARCState *env = &cpu->env;
788 
789     cs->env_ptr = env;
790 
791     if (tcg_enabled()) {
792         gen_intermediate_code_init(env);
793     }
794 
795     if (scc->cpu_def) {
796         env->def = *scc->cpu_def;
797     }
798 }
799 
800 static void sparc_get_nwindows(Object *obj, Visitor *v, const char *name,
801                                void *opaque, Error **errp)
802 {
803     SPARCCPU *cpu = SPARC_CPU(obj);
804     int64_t value = cpu->env.def.nwindows;
805 
806     visit_type_int(v, name, &value, errp);
807 }
808 
809 static void sparc_set_nwindows(Object *obj, Visitor *v, const char *name,
810                                void *opaque, Error **errp)
811 {
812     const int64_t min = MIN_NWINDOWS;
813     const int64_t max = MAX_NWINDOWS;
814     SPARCCPU *cpu = SPARC_CPU(obj);
815     Error *err = NULL;
816     int64_t value;
817 
818     visit_type_int(v, name, &value, &err);
819     if (err) {
820         error_propagate(errp, err);
821         return;
822     }
823 
824     if (value < min || value > max) {
825         error_setg(errp, "Property %s.%s doesn't take value %" PRId64
826                    " (minimum: %" PRId64 ", maximum: %" PRId64 ")",
827                    object_get_typename(obj), name ? name : "null",
828                    value, min, max);
829         return;
830     }
831     cpu->env.def.nwindows = value;
832 }
833 
834 static PropertyInfo qdev_prop_nwindows = {
835     .name  = "int",
836     .get   = sparc_get_nwindows,
837     .set   = sparc_set_nwindows,
838 };
839 
840 static Property sparc_cpu_properties[] = {
841     DEFINE_PROP_BIT("float",    SPARCCPU, env.def.features, 0, false),
842     DEFINE_PROP_BIT("float128", SPARCCPU, env.def.features, 1, false),
843     DEFINE_PROP_BIT("swap",     SPARCCPU, env.def.features, 2, false),
844     DEFINE_PROP_BIT("mul",      SPARCCPU, env.def.features, 3, false),
845     DEFINE_PROP_BIT("div",      SPARCCPU, env.def.features, 4, false),
846     DEFINE_PROP_BIT("flush",    SPARCCPU, env.def.features, 5, false),
847     DEFINE_PROP_BIT("fsqrt",    SPARCCPU, env.def.features, 6, false),
848     DEFINE_PROP_BIT("fmul",     SPARCCPU, env.def.features, 7, false),
849     DEFINE_PROP_BIT("vis1",     SPARCCPU, env.def.features, 8, false),
850     DEFINE_PROP_BIT("vis2",     SPARCCPU, env.def.features, 9, false),
851     DEFINE_PROP_BIT("fsmuld",   SPARCCPU, env.def.features, 10, false),
852     DEFINE_PROP_BIT("hypv",     SPARCCPU, env.def.features, 11, false),
853     DEFINE_PROP_BIT("cmt",      SPARCCPU, env.def.features, 12, false),
854     DEFINE_PROP_BIT("gl",       SPARCCPU, env.def.features, 13, false),
855     DEFINE_PROP_UNSIGNED("iu-version", SPARCCPU, env.def.iu_version, 0,
856                          qdev_prop_uint64, target_ulong),
857     DEFINE_PROP_UINT32("fpu-version", SPARCCPU, env.def.fpu_version, 0),
858     DEFINE_PROP_UINT32("mmu-version", SPARCCPU, env.def.mmu_version, 0),
859     { .name  = "nwindows", .info  = &qdev_prop_nwindows },
860     DEFINE_PROP_END_OF_LIST()
861 };
862 
863 static void sparc_cpu_class_init(ObjectClass *oc, void *data)
864 {
865     SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
866     CPUClass *cc = CPU_CLASS(oc);
867     DeviceClass *dc = DEVICE_CLASS(oc);
868 
869     scc->parent_realize = dc->realize;
870     dc->realize = sparc_cpu_realizefn;
871     dc->props = sparc_cpu_properties;
872 
873     scc->parent_reset = cc->reset;
874     cc->reset = sparc_cpu_reset;
875 
876     cc->class_by_name = sparc_cpu_class_by_name;
877     cc->parse_features = sparc_cpu_parse_features;
878     cc->has_work = sparc_cpu_has_work;
879     cc->do_interrupt = sparc_cpu_do_interrupt;
880     cc->cpu_exec_interrupt = sparc_cpu_exec_interrupt;
881     cc->dump_state = sparc_cpu_dump_state;
882 #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
883     cc->memory_rw_debug = sparc_cpu_memory_rw_debug;
884 #endif
885     cc->set_pc = sparc_cpu_set_pc;
886     cc->synchronize_from_tb = sparc_cpu_synchronize_from_tb;
887     cc->gdb_read_register = sparc_cpu_gdb_read_register;
888     cc->gdb_write_register = sparc_cpu_gdb_write_register;
889 #ifdef CONFIG_USER_ONLY
890     cc->handle_mmu_fault = sparc_cpu_handle_mmu_fault;
891 #else
892     cc->do_unassigned_access = sparc_cpu_unassigned_access;
893     cc->do_unaligned_access = sparc_cpu_do_unaligned_access;
894     cc->get_phys_page_debug = sparc_cpu_get_phys_page_debug;
895     cc->vmsd = &vmstate_sparc_cpu;
896 #endif
897     cc->disas_set_info = cpu_sparc_disas_set_info;
898 
899 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
900     cc->gdb_num_core_regs = 86;
901 #else
902     cc->gdb_num_core_regs = 72;
903 #endif
904 }
905 
906 static const TypeInfo sparc_cpu_type_info = {
907     .name = TYPE_SPARC_CPU,
908     .parent = TYPE_CPU,
909     .instance_size = sizeof(SPARCCPU),
910     .instance_init = sparc_cpu_initfn,
911     .abstract = true,
912     .class_size = sizeof(SPARCCPUClass),
913     .class_init = sparc_cpu_class_init,
914 };
915 
916 static void sparc_cpu_cpudef_class_init(ObjectClass *oc, void *data)
917 {
918     SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
919     scc->cpu_def = data;
920 }
921 
922 static void sparc_register_cpudef_type(const struct sparc_def_t *def)
923 {
924     char *typename = sparc_cpu_type_name(def->name);
925     TypeInfo ti = {
926         .name = typename,
927         .parent = TYPE_SPARC_CPU,
928         .class_init = sparc_cpu_cpudef_class_init,
929         .class_data = (void *)def,
930     };
931 
932     type_register(&ti);
933     g_free(typename);
934 }
935 
936 static void sparc_cpu_register_types(void)
937 {
938     int i;
939 
940     type_register_static(&sparc_cpu_type_info);
941     for (i = 0; i < ARRAY_SIZE(sparc_defs); i++) {
942         sparc_register_cpudef_type(&sparc_defs[i]);
943     }
944 }
945 
946 type_init(sparc_cpu_register_types)
947