xref: /openbmc/qemu/target/riscv/csr.c (revision 3ac25236) 
1 /*
2  * RISC-V Control and Status Registers.
3  *
4  * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
5  * Copyright (c) 2017-2018 SiFive, Inc.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms and conditions of the GNU General Public License,
9  * version 2 or later, as published by the Free Software Foundation.
10  *
11  * This program is distributed in the hope it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "qemu/log.h"
22 #include "cpu.h"
23 #include "qemu/main-loop.h"
24 #include "exec/exec-all.h"
25 
26 /* CSR function table public API */
27 void riscv_get_csr_ops(int csrno, riscv_csr_operations *ops)
28 {
29     *ops = csr_ops[csrno & (CSR_TABLE_SIZE - 1)];
30 }
31 
32 void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops)
33 {
34     csr_ops[csrno & (CSR_TABLE_SIZE - 1)] = *ops;
35 }
36 
37 /* Predicates */
38 static RISCVException fs(CPURISCVState *env, int csrno)
39 {
40 #if !defined(CONFIG_USER_ONLY)
41     if (!env->debugger && !riscv_cpu_fp_enabled(env)) {
42         return RISCV_EXCP_ILLEGAL_INST;
43     }
44 #endif
45     return RISCV_EXCP_NONE;
46 }
47 
48 static RISCVException vs(CPURISCVState *env, int csrno)
49 {
50     if (env->misa_ext & RVV) {
51 #if !defined(CONFIG_USER_ONLY)
52         if (!env->debugger && !riscv_cpu_vector_enabled(env)) {
53             return RISCV_EXCP_ILLEGAL_INST;
54         }
55 #endif
56         return RISCV_EXCP_NONE;
57     }
58     return RISCV_EXCP_ILLEGAL_INST;
59 }
60 
61 static RISCVException ctr(CPURISCVState *env, int csrno)
62 {
63 #if !defined(CONFIG_USER_ONLY)
64     CPUState *cs = env_cpu(env);
65     RISCVCPU *cpu = RISCV_CPU(cs);
66 
67     if (!cpu->cfg.ext_counters) {
68         /* The Counters extensions is not enabled */
69         return RISCV_EXCP_ILLEGAL_INST;
70     }
71 
72     if (riscv_cpu_virt_enabled(env)) {
73         switch (csrno) {
74         case CSR_CYCLE:
75             if (!get_field(env->hcounteren, COUNTEREN_CY) &&
76                 get_field(env->mcounteren, COUNTEREN_CY)) {
77                 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
78             }
79             break;
80         case CSR_TIME:
81             if (!get_field(env->hcounteren, COUNTEREN_TM) &&
82                 get_field(env->mcounteren, COUNTEREN_TM)) {
83                 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
84             }
85             break;
86         case CSR_INSTRET:
87             if (!get_field(env->hcounteren, COUNTEREN_IR) &&
88                 get_field(env->mcounteren, COUNTEREN_IR)) {
89                 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
90             }
91             break;
92         case CSR_HPMCOUNTER3...CSR_HPMCOUNTER31:
93             if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3)) &&
94                 get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3))) {
95                 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
96             }
97             break;
98         }
99         if (riscv_cpu_mxl(env) == MXL_RV32) {
100             switch (csrno) {
101             case CSR_CYCLEH:
102                 if (!get_field(env->hcounteren, COUNTEREN_CY) &&
103                     get_field(env->mcounteren, COUNTEREN_CY)) {
104                     return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
105                 }
106                 break;
107             case CSR_TIMEH:
108                 if (!get_field(env->hcounteren, COUNTEREN_TM) &&
109                     get_field(env->mcounteren, COUNTEREN_TM)) {
110                     return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
111                 }
112                 break;
113             case CSR_INSTRETH:
114                 if (!get_field(env->hcounteren, COUNTEREN_IR) &&
115                     get_field(env->mcounteren, COUNTEREN_IR)) {
116                     return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
117                 }
118                 break;
119             case CSR_HPMCOUNTER3H...CSR_HPMCOUNTER31H:
120                 if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3H)) &&
121                     get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3H))) {
122                     return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
123                 }
124                 break;
125             }
126         }
127     }
128 #endif
129     return RISCV_EXCP_NONE;
130 }
131 
132 static RISCVException ctr32(CPURISCVState *env, int csrno)
133 {
134     if (riscv_cpu_mxl(env) != MXL_RV32) {
135         return RISCV_EXCP_ILLEGAL_INST;
136     }
137 
138     return ctr(env, csrno);
139 }
140 
141 #if !defined(CONFIG_USER_ONLY)
142 static RISCVException any(CPURISCVState *env, int csrno)
143 {
144     return RISCV_EXCP_NONE;
145 }
146 
147 static RISCVException any32(CPURISCVState *env, int csrno)
148 {
149     if (riscv_cpu_mxl(env) != MXL_RV32) {
150         return RISCV_EXCP_ILLEGAL_INST;
151     }
152 
153     return any(env, csrno);
154 
155 }
156 
157 static RISCVException smode(CPURISCVState *env, int csrno)
158 {
159     if (riscv_has_ext(env, RVS)) {
160         return RISCV_EXCP_NONE;
161     }
162 
163     return RISCV_EXCP_ILLEGAL_INST;
164 }
165 
166 static RISCVException hmode(CPURISCVState *env, int csrno)
167 {
168     if (riscv_has_ext(env, RVS) &&
169         riscv_has_ext(env, RVH)) {
170         /* Hypervisor extension is supported */
171         if ((env->priv == PRV_S && !riscv_cpu_virt_enabled(env)) ||
172             env->priv == PRV_M) {
173             return RISCV_EXCP_NONE;
174         } else {
175             return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
176         }
177     }
178 
179     return RISCV_EXCP_ILLEGAL_INST;
180 }
181 
182 static RISCVException hmode32(CPURISCVState *env, int csrno)
183 {
184     if (riscv_cpu_mxl(env) != MXL_RV32) {
185         if (riscv_cpu_virt_enabled(env)) {
186             return RISCV_EXCP_ILLEGAL_INST;
187         } else {
188             return RISCV_EXCP_VIRT_INSTRUCTION_FAULT;
189         }
190     }
191 
192     return hmode(env, csrno);
193 
194 }
195 
196 /* Checks if PointerMasking registers could be accessed */
197 static RISCVException pointer_masking(CPURISCVState *env, int csrno)
198 {
199     /* Check if j-ext is present */
200     if (riscv_has_ext(env, RVJ)) {
201         return RISCV_EXCP_NONE;
202     }
203     return RISCV_EXCP_ILLEGAL_INST;
204 }
205 
206 static RISCVException pmp(CPURISCVState *env, int csrno)
207 {
208     if (riscv_feature(env, RISCV_FEATURE_PMP)) {
209         return RISCV_EXCP_NONE;
210     }
211 
212     return RISCV_EXCP_ILLEGAL_INST;
213 }
214 
215 static RISCVException epmp(CPURISCVState *env, int csrno)
216 {
217     if (env->priv == PRV_M && riscv_feature(env, RISCV_FEATURE_EPMP)) {
218         return RISCV_EXCP_NONE;
219     }
220 
221     return RISCV_EXCP_ILLEGAL_INST;
222 }
223 #endif
224 
225 /* User Floating-Point CSRs */
226 static RISCVException read_fflags(CPURISCVState *env, int csrno,
227                                   target_ulong *val)
228 {
229     *val = riscv_cpu_get_fflags(env);
230     return RISCV_EXCP_NONE;
231 }
232 
233 static RISCVException write_fflags(CPURISCVState *env, int csrno,
234                                    target_ulong val)
235 {
236 #if !defined(CONFIG_USER_ONLY)
237     env->mstatus |= MSTATUS_FS;
238 #endif
239     riscv_cpu_set_fflags(env, val & (FSR_AEXC >> FSR_AEXC_SHIFT));
240     return RISCV_EXCP_NONE;
241 }
242 
243 static RISCVException read_frm(CPURISCVState *env, int csrno,
244                                target_ulong *val)
245 {
246     *val = env->frm;
247     return RISCV_EXCP_NONE;
248 }
249 
250 static RISCVException write_frm(CPURISCVState *env, int csrno,
251                                 target_ulong val)
252 {
253 #if !defined(CONFIG_USER_ONLY)
254     env->mstatus |= MSTATUS_FS;
255 #endif
256     env->frm = val & (FSR_RD >> FSR_RD_SHIFT);
257     return RISCV_EXCP_NONE;
258 }
259 
260 static RISCVException read_fcsr(CPURISCVState *env, int csrno,
261                                 target_ulong *val)
262 {
263     *val = (riscv_cpu_get_fflags(env) << FSR_AEXC_SHIFT)
264         | (env->frm << FSR_RD_SHIFT);
265     return RISCV_EXCP_NONE;
266 }
267 
268 static RISCVException write_fcsr(CPURISCVState *env, int csrno,
269                                  target_ulong val)
270 {
271 #if !defined(CONFIG_USER_ONLY)
272     env->mstatus |= MSTATUS_FS;
273 #endif
274     env->frm = (val & FSR_RD) >> FSR_RD_SHIFT;
275     riscv_cpu_set_fflags(env, (val & FSR_AEXC) >> FSR_AEXC_SHIFT);
276     return RISCV_EXCP_NONE;
277 }
278 
279 static RISCVException read_vtype(CPURISCVState *env, int csrno,
280                                  target_ulong *val)
281 {
282     *val = env->vtype;
283     return RISCV_EXCP_NONE;
284 }
285 
286 static RISCVException read_vl(CPURISCVState *env, int csrno,
287                               target_ulong *val)
288 {
289     *val = env->vl;
290     return RISCV_EXCP_NONE;
291 }
292 
293 static int read_vlenb(CPURISCVState *env, int csrno, target_ulong *val)
294 {
295     *val = env_archcpu(env)->cfg.vlen >> 3;
296     return RISCV_EXCP_NONE;
297 }
298 
299 static RISCVException read_vxrm(CPURISCVState *env, int csrno,
300                                 target_ulong *val)
301 {
302     *val = env->vxrm;
303     return RISCV_EXCP_NONE;
304 }
305 
306 static RISCVException write_vxrm(CPURISCVState *env, int csrno,
307                                  target_ulong val)
308 {
309 #if !defined(CONFIG_USER_ONLY)
310     env->mstatus |= MSTATUS_VS;
311 #endif
312     env->vxrm = val;
313     return RISCV_EXCP_NONE;
314 }
315 
316 static RISCVException read_vxsat(CPURISCVState *env, int csrno,
317                                  target_ulong *val)
318 {
319     *val = env->vxsat;
320     return RISCV_EXCP_NONE;
321 }
322 
323 static RISCVException write_vxsat(CPURISCVState *env, int csrno,
324                                   target_ulong val)
325 {
326 #if !defined(CONFIG_USER_ONLY)
327     env->mstatus |= MSTATUS_VS;
328 #endif
329     env->vxsat = val;
330     return RISCV_EXCP_NONE;
331 }
332 
333 static RISCVException read_vstart(CPURISCVState *env, int csrno,
334                                   target_ulong *val)
335 {
336     *val = env->vstart;
337     return RISCV_EXCP_NONE;
338 }
339 
340 static RISCVException write_vstart(CPURISCVState *env, int csrno,
341                                    target_ulong val)
342 {
343 #if !defined(CONFIG_USER_ONLY)
344     env->mstatus |= MSTATUS_VS;
345 #endif
346     /*
347      * The vstart CSR is defined to have only enough writable bits
348      * to hold the largest element index, i.e. lg2(VLEN) bits.
349      */
350     env->vstart = val & ~(~0ULL << ctzl(env_archcpu(env)->cfg.vlen));
351     return RISCV_EXCP_NONE;
352 }
353 
354 static int read_vcsr(CPURISCVState *env, int csrno, target_ulong *val)
355 {
356     *val = (env->vxrm << VCSR_VXRM_SHIFT) | (env->vxsat << VCSR_VXSAT_SHIFT);
357     return RISCV_EXCP_NONE;
358 }
359 
360 static int write_vcsr(CPURISCVState *env, int csrno, target_ulong val)
361 {
362 #if !defined(CONFIG_USER_ONLY)
363     env->mstatus |= MSTATUS_VS;
364 #endif
365     env->vxrm = (val & VCSR_VXRM) >> VCSR_VXRM_SHIFT;
366     env->vxsat = (val & VCSR_VXSAT) >> VCSR_VXSAT_SHIFT;
367     return RISCV_EXCP_NONE;
368 }
369 
370 /* User Timers and Counters */
371 static RISCVException read_instret(CPURISCVState *env, int csrno,
372                                    target_ulong *val)
373 {
374 #if !defined(CONFIG_USER_ONLY)
375     if (icount_enabled()) {
376         *val = icount_get();
377     } else {
378         *val = cpu_get_host_ticks();
379     }
380 #else
381     *val = cpu_get_host_ticks();
382 #endif
383     return RISCV_EXCP_NONE;
384 }
385 
386 static RISCVException read_instreth(CPURISCVState *env, int csrno,
387                                     target_ulong *val)
388 {
389 #if !defined(CONFIG_USER_ONLY)
390     if (icount_enabled()) {
391         *val = icount_get() >> 32;
392     } else {
393         *val = cpu_get_host_ticks() >> 32;
394     }
395 #else
396     *val = cpu_get_host_ticks() >> 32;
397 #endif
398     return RISCV_EXCP_NONE;
399 }
400 
401 #if defined(CONFIG_USER_ONLY)
402 static RISCVException read_time(CPURISCVState *env, int csrno,
403                                 target_ulong *val)
404 {
405     *val = cpu_get_host_ticks();
406     return RISCV_EXCP_NONE;
407 }
408 
409 static RISCVException read_timeh(CPURISCVState *env, int csrno,
410                                  target_ulong *val)
411 {
412     *val = cpu_get_host_ticks() >> 32;
413     return RISCV_EXCP_NONE;
414 }
415 
416 #else /* CONFIG_USER_ONLY */
417 
418 static RISCVException read_time(CPURISCVState *env, int csrno,
419                                 target_ulong *val)
420 {
421     uint64_t delta = riscv_cpu_virt_enabled(env) ? env->htimedelta : 0;
422 
423     if (!env->rdtime_fn) {
424         return RISCV_EXCP_ILLEGAL_INST;
425     }
426 
427     *val = env->rdtime_fn(env->rdtime_fn_arg) + delta;
428     return RISCV_EXCP_NONE;
429 }
430 
431 static RISCVException read_timeh(CPURISCVState *env, int csrno,
432                                  target_ulong *val)
433 {
434     uint64_t delta = riscv_cpu_virt_enabled(env) ? env->htimedelta : 0;
435 
436     if (!env->rdtime_fn) {
437         return RISCV_EXCP_ILLEGAL_INST;
438     }
439 
440     *val = (env->rdtime_fn(env->rdtime_fn_arg) + delta) >> 32;
441     return RISCV_EXCP_NONE;
442 }
443 
444 /* Machine constants */
445 
446 #define M_MODE_INTERRUPTS  (MIP_MSIP | MIP_MTIP | MIP_MEIP)
447 #define S_MODE_INTERRUPTS  (MIP_SSIP | MIP_STIP | MIP_SEIP)
448 #define VS_MODE_INTERRUPTS (MIP_VSSIP | MIP_VSTIP | MIP_VSEIP)
449 
450 static const target_ulong delegable_ints = S_MODE_INTERRUPTS |
451                                            VS_MODE_INTERRUPTS;
452 static const target_ulong vs_delegable_ints = VS_MODE_INTERRUPTS;
453 static const target_ulong all_ints = M_MODE_INTERRUPTS | S_MODE_INTERRUPTS |
454                                      VS_MODE_INTERRUPTS;
455 #define DELEGABLE_EXCPS ((1ULL << (RISCV_EXCP_INST_ADDR_MIS)) | \
456                          (1ULL << (RISCV_EXCP_INST_ACCESS_FAULT)) | \
457                          (1ULL << (RISCV_EXCP_ILLEGAL_INST)) | \
458                          (1ULL << (RISCV_EXCP_BREAKPOINT)) | \
459                          (1ULL << (RISCV_EXCP_LOAD_ADDR_MIS)) | \
460                          (1ULL << (RISCV_EXCP_LOAD_ACCESS_FAULT)) | \
461                          (1ULL << (RISCV_EXCP_STORE_AMO_ADDR_MIS)) | \
462                          (1ULL << (RISCV_EXCP_STORE_AMO_ACCESS_FAULT)) | \
463                          (1ULL << (RISCV_EXCP_U_ECALL)) | \
464                          (1ULL << (RISCV_EXCP_S_ECALL)) | \
465                          (1ULL << (RISCV_EXCP_VS_ECALL)) | \
466                          (1ULL << (RISCV_EXCP_M_ECALL)) | \
467                          (1ULL << (RISCV_EXCP_INST_PAGE_FAULT)) | \
468                          (1ULL << (RISCV_EXCP_LOAD_PAGE_FAULT)) | \
469                          (1ULL << (RISCV_EXCP_STORE_PAGE_FAULT)) | \
470                          (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | \
471                          (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | \
472                          (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | \
473                          (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT)))
474 static const target_ulong vs_delegable_excps = DELEGABLE_EXCPS &
475     ~((1ULL << (RISCV_EXCP_S_ECALL)) |
476       (1ULL << (RISCV_EXCP_VS_ECALL)) |
477       (1ULL << (RISCV_EXCP_M_ECALL)) |
478       (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) |
479       (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) |
480       (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) |
481       (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT)));
482 static const target_ulong sstatus_v1_10_mask = SSTATUS_SIE | SSTATUS_SPIE |
483     SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS |
484     SSTATUS_SUM | SSTATUS_MXR | SSTATUS_VS | (target_ulong)SSTATUS64_UXL;
485 static const target_ulong sip_writable_mask = SIP_SSIP | MIP_USIP | MIP_UEIP;
486 static const target_ulong hip_writable_mask = MIP_VSSIP;
487 static const target_ulong hvip_writable_mask = MIP_VSSIP | MIP_VSTIP | MIP_VSEIP;
488 static const target_ulong vsip_writable_mask = MIP_VSSIP;
489 
490 static const char valid_vm_1_10_32[16] = {
491     [VM_1_10_MBARE] = 1,
492     [VM_1_10_SV32] = 1
493 };
494 
495 static const char valid_vm_1_10_64[16] = {
496     [VM_1_10_MBARE] = 1,
497     [VM_1_10_SV39] = 1,
498     [VM_1_10_SV48] = 1,
499     [VM_1_10_SV57] = 1
500 };
501 
502 /* Machine Information Registers */
503 static RISCVException read_zero(CPURISCVState *env, int csrno,
504                                 target_ulong *val)
505 {
506     *val = 0;
507     return RISCV_EXCP_NONE;
508 }
509 
510 static RISCVException read_mhartid(CPURISCVState *env, int csrno,
511                                    target_ulong *val)
512 {
513     *val = env->mhartid;
514     return RISCV_EXCP_NONE;
515 }
516 
517 /* Machine Trap Setup */
518 
519 /* We do not store SD explicitly, only compute it on demand. */
520 static uint64_t add_status_sd(RISCVMXL xl, uint64_t status)
521 {
522     if ((status & MSTATUS_FS) == MSTATUS_FS ||
523         (status & MSTATUS_VS) == MSTATUS_VS ||
524         (status & MSTATUS_XS) == MSTATUS_XS) {
525         switch (xl) {
526         case MXL_RV32:
527             return status | MSTATUS32_SD;
528         case MXL_RV64:
529             return status | MSTATUS64_SD;
530         case MXL_RV128:
531             return MSTATUSH128_SD;
532         default:
533             g_assert_not_reached();
534         }
535     }
536     return status;
537 }
538 
539 static RISCVException read_mstatus(CPURISCVState *env, int csrno,
540                                    target_ulong *val)
541 {
542     *val = add_status_sd(riscv_cpu_mxl(env), env->mstatus);
543     return RISCV_EXCP_NONE;
544 }
545 
546 static int validate_vm(CPURISCVState *env, target_ulong vm)
547 {
548     if (riscv_cpu_mxl(env) == MXL_RV32) {
549         return valid_vm_1_10_32[vm & 0xf];
550     } else {
551         return valid_vm_1_10_64[vm & 0xf];
552     }
553 }
554 
555 static RISCVException write_mstatus(CPURISCVState *env, int csrno,
556                                     target_ulong val)
557 {
558     uint64_t mstatus = env->mstatus;
559     uint64_t mask = 0;
560 
561     /* flush tlb on mstatus fields that affect VM */
562     if ((val ^ mstatus) & (MSTATUS_MXR | MSTATUS_MPP | MSTATUS_MPV |
563             MSTATUS_MPRV | MSTATUS_SUM)) {
564         tlb_flush(env_cpu(env));
565     }
566     mask = MSTATUS_SIE | MSTATUS_SPIE | MSTATUS_MIE | MSTATUS_MPIE |
567         MSTATUS_SPP | MSTATUS_FS | MSTATUS_MPRV | MSTATUS_SUM |
568         MSTATUS_MPP | MSTATUS_MXR | MSTATUS_TVM | MSTATUS_TSR |
569         MSTATUS_TW | MSTATUS_VS;
570 
571     if (riscv_cpu_mxl(env) != MXL_RV32) {
572         /*
573          * RV32: MPV and GVA are not in mstatus. The current plan is to
574          * add them to mstatush. For now, we just don't support it.
575          */
576         mask |= MSTATUS_MPV | MSTATUS_GVA;
577     }
578 
579     mstatus = (mstatus & ~mask) | (val & mask);
580 
581     RISCVMXL xl = riscv_cpu_mxl(env);
582     if (xl > MXL_RV32) {
583         /* SXL and UXL fields are for now read only */
584         mstatus = set_field(mstatus, MSTATUS64_SXL, xl);
585         mstatus = set_field(mstatus, MSTATUS64_UXL, xl);
586     }
587     env->mstatus = mstatus;
588 
589     return RISCV_EXCP_NONE;
590 }
591 
592 static RISCVException read_mstatush(CPURISCVState *env, int csrno,
593                                     target_ulong *val)
594 {
595     *val = env->mstatus >> 32;
596     return RISCV_EXCP_NONE;
597 }
598 
599 static RISCVException write_mstatush(CPURISCVState *env, int csrno,
600                                      target_ulong val)
601 {
602     uint64_t valh = (uint64_t)val << 32;
603     uint64_t mask = MSTATUS_MPV | MSTATUS_GVA;
604 
605     if ((valh ^ env->mstatus) & (MSTATUS_MPV)) {
606         tlb_flush(env_cpu(env));
607     }
608 
609     env->mstatus = (env->mstatus & ~mask) | (valh & mask);
610 
611     return RISCV_EXCP_NONE;
612 }
613 
614 static RISCVException read_mstatus_i128(CPURISCVState *env, int csrno,
615                                         Int128 *val)
616 {
617     *val = int128_make128(env->mstatus, add_status_sd(MXL_RV128, env->mstatus));
618     return RISCV_EXCP_NONE;
619 }
620 
621 static RISCVException read_misa_i128(CPURISCVState *env, int csrno,
622                                      Int128 *val)
623 {
624     *val = int128_make128(env->misa_ext, (uint64_t)MXL_RV128 << 62);
625     return RISCV_EXCP_NONE;
626 }
627 
628 static RISCVException read_misa(CPURISCVState *env, int csrno,
629                                 target_ulong *val)
630 {
631     target_ulong misa;
632 
633     switch (env->misa_mxl) {
634     case MXL_RV32:
635         misa = (target_ulong)MXL_RV32 << 30;
636         break;
637 #ifdef TARGET_RISCV64
638     case MXL_RV64:
639         misa = (target_ulong)MXL_RV64 << 62;
640         break;
641 #endif
642     default:
643         g_assert_not_reached();
644     }
645 
646     *val = misa | env->misa_ext;
647     return RISCV_EXCP_NONE;
648 }
649 
650 static RISCVException write_misa(CPURISCVState *env, int csrno,
651                                  target_ulong val)
652 {
653     if (!riscv_feature(env, RISCV_FEATURE_MISA)) {
654         /* drop write to misa */
655         return RISCV_EXCP_NONE;
656     }
657 
658     /* 'I' or 'E' must be present */
659     if (!(val & (RVI | RVE))) {
660         /* It is not, drop write to misa */
661         return RISCV_EXCP_NONE;
662     }
663 
664     /* 'E' excludes all other extensions */
665     if (val & RVE) {
666         /* when we support 'E' we can do "val = RVE;" however
667          * for now we just drop writes if 'E' is present.
668          */
669         return RISCV_EXCP_NONE;
670     }
671 
672     /*
673      * misa.MXL writes are not supported by QEMU.
674      * Drop writes to those bits.
675      */
676 
677     /* Mask extensions that are not supported by this hart */
678     val &= env->misa_ext_mask;
679 
680     /* Mask extensions that are not supported by QEMU */
681     val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV);
682 
683     /* 'D' depends on 'F', so clear 'D' if 'F' is not present */
684     if ((val & RVD) && !(val & RVF)) {
685         val &= ~RVD;
686     }
687 
688     /* Suppress 'C' if next instruction is not aligned
689      * TODO: this should check next_pc
690      */
691     if ((val & RVC) && (GETPC() & ~3) != 0) {
692         val &= ~RVC;
693     }
694 
695     /* If nothing changed, do nothing. */
696     if (val == env->misa_ext) {
697         return RISCV_EXCP_NONE;
698     }
699 
700     /* flush translation cache */
701     tb_flush(env_cpu(env));
702     env->misa_ext = val;
703     return RISCV_EXCP_NONE;
704 }
705 
706 static RISCVException read_medeleg(CPURISCVState *env, int csrno,
707                                    target_ulong *val)
708 {
709     *val = env->medeleg;
710     return RISCV_EXCP_NONE;
711 }
712 
713 static RISCVException write_medeleg(CPURISCVState *env, int csrno,
714                                     target_ulong val)
715 {
716     env->medeleg = (env->medeleg & ~DELEGABLE_EXCPS) | (val & DELEGABLE_EXCPS);
717     return RISCV_EXCP_NONE;
718 }
719 
720 static RISCVException read_mideleg(CPURISCVState *env, int csrno,
721                                    target_ulong *val)
722 {
723     *val = env->mideleg;
724     return RISCV_EXCP_NONE;
725 }
726 
727 static RISCVException write_mideleg(CPURISCVState *env, int csrno,
728                                     target_ulong val)
729 {
730     env->mideleg = (env->mideleg & ~delegable_ints) | (val & delegable_ints);
731     if (riscv_has_ext(env, RVH)) {
732         env->mideleg |= VS_MODE_INTERRUPTS;
733     }
734     return RISCV_EXCP_NONE;
735 }
736 
737 static RISCVException read_mie(CPURISCVState *env, int csrno,
738                                target_ulong *val)
739 {
740     *val = env->mie;
741     return RISCV_EXCP_NONE;
742 }
743 
744 static RISCVException write_mie(CPURISCVState *env, int csrno,
745                                 target_ulong val)
746 {
747     env->mie = (env->mie & ~all_ints) | (val & all_ints);
748     return RISCV_EXCP_NONE;
749 }
750 
751 static RISCVException read_mtvec(CPURISCVState *env, int csrno,
752                                  target_ulong *val)
753 {
754     *val = env->mtvec;
755     return RISCV_EXCP_NONE;
756 }
757 
758 static RISCVException write_mtvec(CPURISCVState *env, int csrno,
759                                   target_ulong val)
760 {
761     /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */
762     if ((val & 3) < 2) {
763         env->mtvec = val;
764     } else {
765         qemu_log_mask(LOG_UNIMP, "CSR_MTVEC: reserved mode not supported\n");
766     }
767     return RISCV_EXCP_NONE;
768 }
769 
770 static RISCVException read_mcounteren(CPURISCVState *env, int csrno,
771                                       target_ulong *val)
772 {
773     *val = env->mcounteren;
774     return RISCV_EXCP_NONE;
775 }
776 
777 static RISCVException write_mcounteren(CPURISCVState *env, int csrno,
778                                        target_ulong val)
779 {
780     env->mcounteren = val;
781     return RISCV_EXCP_NONE;
782 }
783 
784 /* Machine Trap Handling */
785 static RISCVException read_mscratch_i128(CPURISCVState *env, int csrno,
786                                          Int128 *val)
787 {
788     *val = int128_make128(env->mscratch, env->mscratchh);
789     return RISCV_EXCP_NONE;
790 }
791 
792 static RISCVException write_mscratch_i128(CPURISCVState *env, int csrno,
793                                           Int128 val)
794 {
795     env->mscratch = int128_getlo(val);
796     env->mscratchh = int128_gethi(val);
797     return RISCV_EXCP_NONE;
798 }
799 
800 static RISCVException read_mscratch(CPURISCVState *env, int csrno,
801                                     target_ulong *val)
802 {
803     *val = env->mscratch;
804     return RISCV_EXCP_NONE;
805 }
806 
807 static RISCVException write_mscratch(CPURISCVState *env, int csrno,
808                                      target_ulong val)
809 {
810     env->mscratch = val;
811     return RISCV_EXCP_NONE;
812 }
813 
814 static RISCVException read_mepc(CPURISCVState *env, int csrno,
815                                      target_ulong *val)
816 {
817     *val = env->mepc;
818     return RISCV_EXCP_NONE;
819 }
820 
821 static RISCVException write_mepc(CPURISCVState *env, int csrno,
822                                      target_ulong val)
823 {
824     env->mepc = val;
825     return RISCV_EXCP_NONE;
826 }
827 
828 static RISCVException read_mcause(CPURISCVState *env, int csrno,
829                                      target_ulong *val)
830 {
831     *val = env->mcause;
832     return RISCV_EXCP_NONE;
833 }
834 
835 static RISCVException write_mcause(CPURISCVState *env, int csrno,
836                                      target_ulong val)
837 {
838     env->mcause = val;
839     return RISCV_EXCP_NONE;
840 }
841 
842 static RISCVException read_mtval(CPURISCVState *env, int csrno,
843                                  target_ulong *val)
844 {
845     *val = env->mtval;
846     return RISCV_EXCP_NONE;
847 }
848 
849 static RISCVException write_mtval(CPURISCVState *env, int csrno,
850                                   target_ulong val)
851 {
852     env->mtval = val;
853     return RISCV_EXCP_NONE;
854 }
855 
856 static RISCVException rmw_mip(CPURISCVState *env, int csrno,
857                               target_ulong *ret_value,
858                               target_ulong new_value, target_ulong write_mask)
859 {
860     RISCVCPU *cpu = env_archcpu(env);
861     /* Allow software control of delegable interrupts not claimed by hardware */
862     target_ulong mask = write_mask & delegable_ints & ~env->miclaim;
863     uint32_t old_mip;
864 
865     if (mask) {
866         old_mip = riscv_cpu_update_mip(cpu, mask, (new_value & mask));
867     } else {
868         old_mip = env->mip;
869     }
870 
871     if (ret_value) {
872         *ret_value = old_mip;
873     }
874 
875     return RISCV_EXCP_NONE;
876 }
877 
878 /* Supervisor Trap Setup */
879 static RISCVException read_sstatus_i128(CPURISCVState *env, int csrno,
880                                         Int128 *val)
881 {
882     uint64_t mask = sstatus_v1_10_mask;
883     uint64_t sstatus = env->mstatus & mask;
884 
885     *val = int128_make128(sstatus, add_status_sd(MXL_RV128, sstatus));
886     return RISCV_EXCP_NONE;
887 }
888 
889 static RISCVException read_sstatus(CPURISCVState *env, int csrno,
890                                    target_ulong *val)
891 {
892     target_ulong mask = (sstatus_v1_10_mask);
893 
894     /* TODO: Use SXL not MXL. */
895     *val = add_status_sd(riscv_cpu_mxl(env), env->mstatus & mask);
896     return RISCV_EXCP_NONE;
897 }
898 
899 static RISCVException write_sstatus(CPURISCVState *env, int csrno,
900                                     target_ulong val)
901 {
902     target_ulong mask = (sstatus_v1_10_mask);
903     target_ulong newval = (env->mstatus & ~mask) | (val & mask);
904     return write_mstatus(env, CSR_MSTATUS, newval);
905 }
906 
907 static RISCVException read_vsie(CPURISCVState *env, int csrno,
908                                 target_ulong *val)
909 {
910     /* Shift the VS bits to their S bit location in vsie */
911     *val = (env->mie & env->hideleg & VS_MODE_INTERRUPTS) >> 1;
912     return RISCV_EXCP_NONE;
913 }
914 
915 static RISCVException read_sie(CPURISCVState *env, int csrno,
916                                target_ulong *val)
917 {
918     if (riscv_cpu_virt_enabled(env)) {
919         read_vsie(env, CSR_VSIE, val);
920     } else {
921         *val = env->mie & env->mideleg;
922     }
923     return RISCV_EXCP_NONE;
924 }
925 
926 static RISCVException write_vsie(CPURISCVState *env, int csrno,
927                                  target_ulong val)
928 {
929     /* Shift the S bits to their VS bit location in mie */
930     target_ulong newval = (env->mie & ~VS_MODE_INTERRUPTS) |
931                           ((val << 1) & env->hideleg & VS_MODE_INTERRUPTS);
932     return write_mie(env, CSR_MIE, newval);
933 }
934 
935 static int write_sie(CPURISCVState *env, int csrno, target_ulong val)
936 {
937     if (riscv_cpu_virt_enabled(env)) {
938         write_vsie(env, CSR_VSIE, val);
939     } else {
940         target_ulong newval = (env->mie & ~S_MODE_INTERRUPTS) |
941                               (val & S_MODE_INTERRUPTS);
942         write_mie(env, CSR_MIE, newval);
943     }
944 
945     return RISCV_EXCP_NONE;
946 }
947 
948 static RISCVException read_stvec(CPURISCVState *env, int csrno,
949                                  target_ulong *val)
950 {
951     *val = env->stvec;
952     return RISCV_EXCP_NONE;
953 }
954 
955 static RISCVException write_stvec(CPURISCVState *env, int csrno,
956                                   target_ulong val)
957 {
958     /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */
959     if ((val & 3) < 2) {
960         env->stvec = val;
961     } else {
962         qemu_log_mask(LOG_UNIMP, "CSR_STVEC: reserved mode not supported\n");
963     }
964     return RISCV_EXCP_NONE;
965 }
966 
967 static RISCVException read_scounteren(CPURISCVState *env, int csrno,
968                                       target_ulong *val)
969 {
970     *val = env->scounteren;
971     return RISCV_EXCP_NONE;
972 }
973 
974 static RISCVException write_scounteren(CPURISCVState *env, int csrno,
975                                        target_ulong val)
976 {
977     env->scounteren = val;
978     return RISCV_EXCP_NONE;
979 }
980 
981 /* Supervisor Trap Handling */
982 static RISCVException read_sscratch_i128(CPURISCVState *env, int csrno,
983                                          Int128 *val)
984 {
985     *val = int128_make128(env->sscratch, env->sscratchh);
986     return RISCV_EXCP_NONE;
987 }
988 
989 static RISCVException write_sscratch_i128(CPURISCVState *env, int csrno,
990                                           Int128 val)
991 {
992     env->sscratch = int128_getlo(val);
993     env->sscratchh = int128_gethi(val);
994     return RISCV_EXCP_NONE;
995 }
996 
997 static RISCVException read_sscratch(CPURISCVState *env, int csrno,
998                                     target_ulong *val)
999 {
1000     *val = env->sscratch;
1001     return RISCV_EXCP_NONE;
1002 }
1003 
1004 static RISCVException write_sscratch(CPURISCVState *env, int csrno,
1005                                      target_ulong val)
1006 {
1007     env->sscratch = val;
1008     return RISCV_EXCP_NONE;
1009 }
1010 
1011 static RISCVException read_sepc(CPURISCVState *env, int csrno,
1012                                 target_ulong *val)
1013 {
1014     *val = env->sepc;
1015     return RISCV_EXCP_NONE;
1016 }
1017 
1018 static RISCVException write_sepc(CPURISCVState *env, int csrno,
1019                                  target_ulong val)
1020 {
1021     env->sepc = val;
1022     return RISCV_EXCP_NONE;
1023 }
1024 
1025 static RISCVException read_scause(CPURISCVState *env, int csrno,
1026                                   target_ulong *val)
1027 {
1028     *val = env->scause;
1029     return RISCV_EXCP_NONE;
1030 }
1031 
1032 static RISCVException write_scause(CPURISCVState *env, int csrno,
1033                                    target_ulong val)
1034 {
1035     env->scause = val;
1036     return RISCV_EXCP_NONE;
1037 }
1038 
1039 static RISCVException read_stval(CPURISCVState *env, int csrno,
1040                                  target_ulong *val)
1041 {
1042     *val = env->stval;
1043     return RISCV_EXCP_NONE;
1044 }
1045 
1046 static RISCVException write_stval(CPURISCVState *env, int csrno,
1047                                   target_ulong val)
1048 {
1049     env->stval = val;
1050     return RISCV_EXCP_NONE;
1051 }
1052 
1053 static RISCVException rmw_vsip(CPURISCVState *env, int csrno,
1054                                target_ulong *ret_value,
1055                                target_ulong new_value, target_ulong write_mask)
1056 {
1057     /* Shift the S bits to their VS bit location in mip */
1058     int ret = rmw_mip(env, 0, ret_value, new_value << 1,
1059                       (write_mask << 1) & vsip_writable_mask & env->hideleg);
1060 
1061     if (ret_value) {
1062         *ret_value &= VS_MODE_INTERRUPTS;
1063         /* Shift the VS bits to their S bit location in vsip */
1064         *ret_value >>= 1;
1065     }
1066     return ret;
1067 }
1068 
1069 static RISCVException rmw_sip(CPURISCVState *env, int csrno,
1070                               target_ulong *ret_value,
1071                               target_ulong new_value, target_ulong write_mask)
1072 {
1073     int ret;
1074 
1075     if (riscv_cpu_virt_enabled(env)) {
1076         ret = rmw_vsip(env, CSR_VSIP, ret_value, new_value, write_mask);
1077     } else {
1078         ret = rmw_mip(env, CSR_MSTATUS, ret_value, new_value,
1079                       write_mask & env->mideleg & sip_writable_mask);
1080     }
1081 
1082     if (ret_value) {
1083         *ret_value &= env->mideleg;
1084     }
1085     return ret;
1086 }
1087 
1088 /* Supervisor Protection and Translation */
1089 static RISCVException read_satp(CPURISCVState *env, int csrno,
1090                                 target_ulong *val)
1091 {
1092     if (!riscv_feature(env, RISCV_FEATURE_MMU)) {
1093         *val = 0;
1094         return RISCV_EXCP_NONE;
1095     }
1096 
1097     if (env->priv == PRV_S && get_field(env->mstatus, MSTATUS_TVM)) {
1098         return RISCV_EXCP_ILLEGAL_INST;
1099     } else {
1100         *val = env->satp;
1101     }
1102 
1103     return RISCV_EXCP_NONE;
1104 }
1105 
1106 static RISCVException write_satp(CPURISCVState *env, int csrno,
1107                                  target_ulong val)
1108 {
1109     target_ulong vm, mask, asid;
1110 
1111     if (!riscv_feature(env, RISCV_FEATURE_MMU)) {
1112         return RISCV_EXCP_NONE;
1113     }
1114 
1115     if (riscv_cpu_mxl(env) == MXL_RV32) {
1116         vm = validate_vm(env, get_field(val, SATP32_MODE));
1117         mask = (val ^ env->satp) & (SATP32_MODE | SATP32_ASID | SATP32_PPN);
1118         asid = (val ^ env->satp) & SATP32_ASID;
1119     } else {
1120         vm = validate_vm(env, get_field(val, SATP64_MODE));
1121         mask = (val ^ env->satp) & (SATP64_MODE | SATP64_ASID | SATP64_PPN);
1122         asid = (val ^ env->satp) & SATP64_ASID;
1123     }
1124 
1125     if (vm && mask) {
1126         if (env->priv == PRV_S && get_field(env->mstatus, MSTATUS_TVM)) {
1127             return RISCV_EXCP_ILLEGAL_INST;
1128         } else {
1129             if (asid) {
1130                 tlb_flush(env_cpu(env));
1131             }
1132             env->satp = val;
1133         }
1134     }
1135     return RISCV_EXCP_NONE;
1136 }
1137 
1138 /* Hypervisor Extensions */
1139 static RISCVException read_hstatus(CPURISCVState *env, int csrno,
1140                                    target_ulong *val)
1141 {
1142     *val = env->hstatus;
1143     if (riscv_cpu_mxl(env) != MXL_RV32) {
1144         /* We only support 64-bit VSXL */
1145         *val = set_field(*val, HSTATUS_VSXL, 2);
1146     }
1147     /* We only support little endian */
1148     *val = set_field(*val, HSTATUS_VSBE, 0);
1149     return RISCV_EXCP_NONE;
1150 }
1151 
1152 static RISCVException write_hstatus(CPURISCVState *env, int csrno,
1153                                     target_ulong val)
1154 {
1155     env->hstatus = val;
1156     if (riscv_cpu_mxl(env) != MXL_RV32 && get_field(val, HSTATUS_VSXL) != 2) {
1157         qemu_log_mask(LOG_UNIMP, "QEMU does not support mixed HSXLEN options.");
1158     }
1159     if (get_field(val, HSTATUS_VSBE) != 0) {
1160         qemu_log_mask(LOG_UNIMP, "QEMU does not support big endian guests.");
1161     }
1162     return RISCV_EXCP_NONE;
1163 }
1164 
1165 static RISCVException read_hedeleg(CPURISCVState *env, int csrno,
1166                                    target_ulong *val)
1167 {
1168     *val = env->hedeleg;
1169     return RISCV_EXCP_NONE;
1170 }
1171 
1172 static RISCVException write_hedeleg(CPURISCVState *env, int csrno,
1173                                     target_ulong val)
1174 {
1175     env->hedeleg = val & vs_delegable_excps;
1176     return RISCV_EXCP_NONE;
1177 }
1178 
1179 static RISCVException read_hideleg(CPURISCVState *env, int csrno,
1180                                    target_ulong *val)
1181 {
1182     *val = env->hideleg;
1183     return RISCV_EXCP_NONE;
1184 }
1185 
1186 static RISCVException write_hideleg(CPURISCVState *env, int csrno,
1187                                     target_ulong val)
1188 {
1189     env->hideleg = val & vs_delegable_ints;
1190     return RISCV_EXCP_NONE;
1191 }
1192 
1193 static RISCVException rmw_hvip(CPURISCVState *env, int csrno,
1194                                target_ulong *ret_value,
1195                                target_ulong new_value, target_ulong write_mask)
1196 {
1197     int ret = rmw_mip(env, 0, ret_value, new_value,
1198                       write_mask & hvip_writable_mask);
1199 
1200     if (ret_value) {
1201         *ret_value &= hvip_writable_mask;
1202     }
1203     return ret;
1204 }
1205 
1206 static RISCVException rmw_hip(CPURISCVState *env, int csrno,
1207                               target_ulong *ret_value,
1208                               target_ulong new_value, target_ulong write_mask)
1209 {
1210     int ret = rmw_mip(env, 0, ret_value, new_value,
1211                       write_mask & hip_writable_mask);
1212 
1213     if (ret_value) {
1214         *ret_value &= hip_writable_mask;
1215     }
1216     return ret;
1217 }
1218 
1219 static RISCVException read_hie(CPURISCVState *env, int csrno,
1220                                target_ulong *val)
1221 {
1222     *val = env->mie & VS_MODE_INTERRUPTS;
1223     return RISCV_EXCP_NONE;
1224 }
1225 
1226 static RISCVException write_hie(CPURISCVState *env, int csrno,
1227                                 target_ulong val)
1228 {
1229     target_ulong newval = (env->mie & ~VS_MODE_INTERRUPTS) | (val & VS_MODE_INTERRUPTS);
1230     return write_mie(env, CSR_MIE, newval);
1231 }
1232 
1233 static RISCVException read_hcounteren(CPURISCVState *env, int csrno,
1234                                       target_ulong *val)
1235 {
1236     *val = env->hcounteren;
1237     return RISCV_EXCP_NONE;
1238 }
1239 
1240 static RISCVException write_hcounteren(CPURISCVState *env, int csrno,
1241                                        target_ulong val)
1242 {
1243     env->hcounteren = val;
1244     return RISCV_EXCP_NONE;
1245 }
1246 
1247 static RISCVException write_hgeie(CPURISCVState *env, int csrno,
1248                                   target_ulong val)
1249 {
1250     if (val) {
1251         qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN.");
1252     }
1253     return RISCV_EXCP_NONE;
1254 }
1255 
1256 static RISCVException read_htval(CPURISCVState *env, int csrno,
1257                                  target_ulong *val)
1258 {
1259     *val = env->htval;
1260     return RISCV_EXCP_NONE;
1261 }
1262 
1263 static RISCVException write_htval(CPURISCVState *env, int csrno,
1264                                   target_ulong val)
1265 {
1266     env->htval = val;
1267     return RISCV_EXCP_NONE;
1268 }
1269 
1270 static RISCVException read_htinst(CPURISCVState *env, int csrno,
1271                                   target_ulong *val)
1272 {
1273     *val = env->htinst;
1274     return RISCV_EXCP_NONE;
1275 }
1276 
1277 static RISCVException write_htinst(CPURISCVState *env, int csrno,
1278                                    target_ulong val)
1279 {
1280     return RISCV_EXCP_NONE;
1281 }
1282 
1283 static RISCVException write_hgeip(CPURISCVState *env, int csrno,
1284                                   target_ulong val)
1285 {
1286     if (val) {
1287         qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN.");
1288     }
1289     return RISCV_EXCP_NONE;
1290 }
1291 
1292 static RISCVException read_hgatp(CPURISCVState *env, int csrno,
1293                                  target_ulong *val)
1294 {
1295     *val = env->hgatp;
1296     return RISCV_EXCP_NONE;
1297 }
1298 
1299 static RISCVException write_hgatp(CPURISCVState *env, int csrno,
1300                                   target_ulong val)
1301 {
1302     env->hgatp = val;
1303     return RISCV_EXCP_NONE;
1304 }
1305 
1306 static RISCVException read_htimedelta(CPURISCVState *env, int csrno,
1307                                       target_ulong *val)
1308 {
1309     if (!env->rdtime_fn) {
1310         return RISCV_EXCP_ILLEGAL_INST;
1311     }
1312 
1313     *val = env->htimedelta;
1314     return RISCV_EXCP_NONE;
1315 }
1316 
1317 static RISCVException write_htimedelta(CPURISCVState *env, int csrno,
1318                                        target_ulong val)
1319 {
1320     if (!env->rdtime_fn) {
1321         return RISCV_EXCP_ILLEGAL_INST;
1322     }
1323 
1324     if (riscv_cpu_mxl(env) == MXL_RV32) {
1325         env->htimedelta = deposit64(env->htimedelta, 0, 32, (uint64_t)val);
1326     } else {
1327         env->htimedelta = val;
1328     }
1329     return RISCV_EXCP_NONE;
1330 }
1331 
1332 static RISCVException read_htimedeltah(CPURISCVState *env, int csrno,
1333                                        target_ulong *val)
1334 {
1335     if (!env->rdtime_fn) {
1336         return RISCV_EXCP_ILLEGAL_INST;
1337     }
1338 
1339     *val = env->htimedelta >> 32;
1340     return RISCV_EXCP_NONE;
1341 }
1342 
1343 static RISCVException write_htimedeltah(CPURISCVState *env, int csrno,
1344                                         target_ulong val)
1345 {
1346     if (!env->rdtime_fn) {
1347         return RISCV_EXCP_ILLEGAL_INST;
1348     }
1349 
1350     env->htimedelta = deposit64(env->htimedelta, 32, 32, (uint64_t)val);
1351     return RISCV_EXCP_NONE;
1352 }
1353 
1354 /* Virtual CSR Registers */
1355 static RISCVException read_vsstatus(CPURISCVState *env, int csrno,
1356                                     target_ulong *val)
1357 {
1358     *val = env->vsstatus;
1359     return RISCV_EXCP_NONE;
1360 }
1361 
1362 static RISCVException write_vsstatus(CPURISCVState *env, int csrno,
1363                                      target_ulong val)
1364 {
1365     uint64_t mask = (target_ulong)-1;
1366     env->vsstatus = (env->vsstatus & ~mask) | (uint64_t)val;
1367     return RISCV_EXCP_NONE;
1368 }
1369 
1370 static int read_vstvec(CPURISCVState *env, int csrno, target_ulong *val)
1371 {
1372     *val = env->vstvec;
1373     return RISCV_EXCP_NONE;
1374 }
1375 
1376 static RISCVException write_vstvec(CPURISCVState *env, int csrno,
1377                                    target_ulong val)
1378 {
1379     env->vstvec = val;
1380     return RISCV_EXCP_NONE;
1381 }
1382 
1383 static RISCVException read_vsscratch(CPURISCVState *env, int csrno,
1384                                      target_ulong *val)
1385 {
1386     *val = env->vsscratch;
1387     return RISCV_EXCP_NONE;
1388 }
1389 
1390 static RISCVException write_vsscratch(CPURISCVState *env, int csrno,
1391                                       target_ulong val)
1392 {
1393     env->vsscratch = val;
1394     return RISCV_EXCP_NONE;
1395 }
1396 
1397 static RISCVException read_vsepc(CPURISCVState *env, int csrno,
1398                                  target_ulong *val)
1399 {
1400     *val = env->vsepc;
1401     return RISCV_EXCP_NONE;
1402 }
1403 
1404 static RISCVException write_vsepc(CPURISCVState *env, int csrno,
1405                                   target_ulong val)
1406 {
1407     env->vsepc = val;
1408     return RISCV_EXCP_NONE;
1409 }
1410 
1411 static RISCVException read_vscause(CPURISCVState *env, int csrno,
1412                                    target_ulong *val)
1413 {
1414     *val = env->vscause;
1415     return RISCV_EXCP_NONE;
1416 }
1417 
1418 static RISCVException write_vscause(CPURISCVState *env, int csrno,
1419                                     target_ulong val)
1420 {
1421     env->vscause = val;
1422     return RISCV_EXCP_NONE;
1423 }
1424 
1425 static RISCVException read_vstval(CPURISCVState *env, int csrno,
1426                                   target_ulong *val)
1427 {
1428     *val = env->vstval;
1429     return RISCV_EXCP_NONE;
1430 }
1431 
1432 static RISCVException write_vstval(CPURISCVState *env, int csrno,
1433                                    target_ulong val)
1434 {
1435     env->vstval = val;
1436     return RISCV_EXCP_NONE;
1437 }
1438 
1439 static RISCVException read_vsatp(CPURISCVState *env, int csrno,
1440                                  target_ulong *val)
1441 {
1442     *val = env->vsatp;
1443     return RISCV_EXCP_NONE;
1444 }
1445 
1446 static RISCVException write_vsatp(CPURISCVState *env, int csrno,
1447                                   target_ulong val)
1448 {
1449     env->vsatp = val;
1450     return RISCV_EXCP_NONE;
1451 }
1452 
1453 static RISCVException read_mtval2(CPURISCVState *env, int csrno,
1454                                   target_ulong *val)
1455 {
1456     *val = env->mtval2;
1457     return RISCV_EXCP_NONE;
1458 }
1459 
1460 static RISCVException write_mtval2(CPURISCVState *env, int csrno,
1461                                    target_ulong val)
1462 {
1463     env->mtval2 = val;
1464     return RISCV_EXCP_NONE;
1465 }
1466 
1467 static RISCVException read_mtinst(CPURISCVState *env, int csrno,
1468                                   target_ulong *val)
1469 {
1470     *val = env->mtinst;
1471     return RISCV_EXCP_NONE;
1472 }
1473 
1474 static RISCVException write_mtinst(CPURISCVState *env, int csrno,
1475                                    target_ulong val)
1476 {
1477     env->mtinst = val;
1478     return RISCV_EXCP_NONE;
1479 }
1480 
1481 /* Physical Memory Protection */
1482 static RISCVException read_mseccfg(CPURISCVState *env, int csrno,
1483                                    target_ulong *val)
1484 {
1485     *val = mseccfg_csr_read(env);
1486     return RISCV_EXCP_NONE;
1487 }
1488 
1489 static RISCVException write_mseccfg(CPURISCVState *env, int csrno,
1490                          target_ulong val)
1491 {
1492     mseccfg_csr_write(env, val);
1493     return RISCV_EXCP_NONE;
1494 }
1495 
1496 static RISCVException read_pmpcfg(CPURISCVState *env, int csrno,
1497                                   target_ulong *val)
1498 {
1499     *val = pmpcfg_csr_read(env, csrno - CSR_PMPCFG0);
1500     return RISCV_EXCP_NONE;
1501 }
1502 
1503 static RISCVException write_pmpcfg(CPURISCVState *env, int csrno,
1504                                    target_ulong val)
1505 {
1506     pmpcfg_csr_write(env, csrno - CSR_PMPCFG0, val);
1507     return RISCV_EXCP_NONE;
1508 }
1509 
1510 static RISCVException read_pmpaddr(CPURISCVState *env, int csrno,
1511                                    target_ulong *val)
1512 {
1513     *val = pmpaddr_csr_read(env, csrno - CSR_PMPADDR0);
1514     return RISCV_EXCP_NONE;
1515 }
1516 
1517 static RISCVException write_pmpaddr(CPURISCVState *env, int csrno,
1518                                     target_ulong val)
1519 {
1520     pmpaddr_csr_write(env, csrno - CSR_PMPADDR0, val);
1521     return RISCV_EXCP_NONE;
1522 }
1523 
1524 /*
1525  * Functions to access Pointer Masking feature registers
1526  * We have to check if current priv lvl could modify
1527  * csr in given mode
1528  */
1529 static bool check_pm_current_disabled(CPURISCVState *env, int csrno)
1530 {
1531     int csr_priv = get_field(csrno, 0x300);
1532     int pm_current;
1533 
1534     /*
1535      * If priv lvls differ that means we're accessing csr from higher priv lvl,
1536      * so allow the access
1537      */
1538     if (env->priv != csr_priv) {
1539         return false;
1540     }
1541     switch (env->priv) {
1542     case PRV_M:
1543         pm_current = get_field(env->mmte, M_PM_CURRENT);
1544         break;
1545     case PRV_S:
1546         pm_current = get_field(env->mmte, S_PM_CURRENT);
1547         break;
1548     case PRV_U:
1549         pm_current = get_field(env->mmte, U_PM_CURRENT);
1550         break;
1551     default:
1552         g_assert_not_reached();
1553     }
1554     /* It's same priv lvl, so we allow to modify csr only if pm.current==1 */
1555     return !pm_current;
1556 }
1557 
1558 static RISCVException read_mmte(CPURISCVState *env, int csrno,
1559                                 target_ulong *val)
1560 {
1561     *val = env->mmte & MMTE_MASK;
1562     return RISCV_EXCP_NONE;
1563 }
1564 
1565 static RISCVException write_mmte(CPURISCVState *env, int csrno,
1566                                  target_ulong val)
1567 {
1568     uint64_t mstatus;
1569     target_ulong wpri_val = val & MMTE_MASK;
1570 
1571     if (val != wpri_val) {
1572         qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" TARGET_FMT_lx "\n",
1573                       "MMTE: WPRI violation written 0x", val,
1574                       "vs expected 0x", wpri_val);
1575     }
1576     /* for machine mode pm.current is hardwired to 1 */
1577     wpri_val |= MMTE_M_PM_CURRENT;
1578 
1579     /* hardwiring pm.instruction bit to 0, since it's not supported yet */
1580     wpri_val &= ~(MMTE_M_PM_INSN | MMTE_S_PM_INSN | MMTE_U_PM_INSN);
1581     env->mmte = wpri_val | PM_EXT_DIRTY;
1582 
1583     /* Set XS and SD bits, since PM CSRs are dirty */
1584     mstatus = env->mstatus | MSTATUS_XS;
1585     write_mstatus(env, csrno, mstatus);
1586     return RISCV_EXCP_NONE;
1587 }
1588 
1589 static RISCVException read_smte(CPURISCVState *env, int csrno,
1590                                 target_ulong *val)
1591 {
1592     *val = env->mmte & SMTE_MASK;
1593     return RISCV_EXCP_NONE;
1594 }
1595 
1596 static RISCVException write_smte(CPURISCVState *env, int csrno,
1597                                  target_ulong val)
1598 {
1599     target_ulong wpri_val = val & SMTE_MASK;
1600 
1601     if (val != wpri_val) {
1602         qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" TARGET_FMT_lx "\n",
1603                       "SMTE: WPRI violation written 0x", val,
1604                       "vs expected 0x", wpri_val);
1605     }
1606 
1607     /* if pm.current==0 we can't modify current PM CSRs */
1608     if (check_pm_current_disabled(env, csrno)) {
1609         return RISCV_EXCP_NONE;
1610     }
1611 
1612     wpri_val |= (env->mmte & ~SMTE_MASK);
1613     write_mmte(env, csrno, wpri_val);
1614     return RISCV_EXCP_NONE;
1615 }
1616 
1617 static RISCVException read_umte(CPURISCVState *env, int csrno,
1618                                 target_ulong *val)
1619 {
1620     *val = env->mmte & UMTE_MASK;
1621     return RISCV_EXCP_NONE;
1622 }
1623 
1624 static RISCVException write_umte(CPURISCVState *env, int csrno,
1625                                  target_ulong val)
1626 {
1627     target_ulong wpri_val = val & UMTE_MASK;
1628 
1629     if (val != wpri_val) {
1630         qemu_log_mask(LOG_GUEST_ERROR, "%s" TARGET_FMT_lx " %s" TARGET_FMT_lx "\n",
1631                       "UMTE: WPRI violation written 0x", val,
1632                       "vs expected 0x", wpri_val);
1633     }
1634 
1635     if (check_pm_current_disabled(env, csrno)) {
1636         return RISCV_EXCP_NONE;
1637     }
1638 
1639     wpri_val |= (env->mmte & ~UMTE_MASK);
1640     write_mmte(env, csrno, wpri_val);
1641     return RISCV_EXCP_NONE;
1642 }
1643 
1644 static RISCVException read_mpmmask(CPURISCVState *env, int csrno,
1645                                    target_ulong *val)
1646 {
1647     *val = env->mpmmask;
1648     return RISCV_EXCP_NONE;
1649 }
1650 
1651 static RISCVException write_mpmmask(CPURISCVState *env, int csrno,
1652                                     target_ulong val)
1653 {
1654     uint64_t mstatus;
1655 
1656     env->mpmmask = val;
1657     env->mmte |= PM_EXT_DIRTY;
1658 
1659     /* Set XS and SD bits, since PM CSRs are dirty */
1660     mstatus = env->mstatus | MSTATUS_XS;
1661     write_mstatus(env, csrno, mstatus);
1662     return RISCV_EXCP_NONE;
1663 }
1664 
1665 static RISCVException read_spmmask(CPURISCVState *env, int csrno,
1666                                    target_ulong *val)
1667 {
1668     *val = env->spmmask;
1669     return RISCV_EXCP_NONE;
1670 }
1671 
1672 static RISCVException write_spmmask(CPURISCVState *env, int csrno,
1673                                     target_ulong val)
1674 {
1675     uint64_t mstatus;
1676 
1677     /* if pm.current==0 we can't modify current PM CSRs */
1678     if (check_pm_current_disabled(env, csrno)) {
1679         return RISCV_EXCP_NONE;
1680     }
1681     env->spmmask = val;
1682     env->mmte |= PM_EXT_DIRTY;
1683 
1684     /* Set XS and SD bits, since PM CSRs are dirty */
1685     mstatus = env->mstatus | MSTATUS_XS;
1686     write_mstatus(env, csrno, mstatus);
1687     return RISCV_EXCP_NONE;
1688 }
1689 
1690 static RISCVException read_upmmask(CPURISCVState *env, int csrno,
1691                                    target_ulong *val)
1692 {
1693     *val = env->upmmask;
1694     return RISCV_EXCP_NONE;
1695 }
1696 
1697 static RISCVException write_upmmask(CPURISCVState *env, int csrno,
1698                                     target_ulong val)
1699 {
1700     uint64_t mstatus;
1701 
1702     /* if pm.current==0 we can't modify current PM CSRs */
1703     if (check_pm_current_disabled(env, csrno)) {
1704         return RISCV_EXCP_NONE;
1705     }
1706     env->upmmask = val;
1707     env->mmte |= PM_EXT_DIRTY;
1708 
1709     /* Set XS and SD bits, since PM CSRs are dirty */
1710     mstatus = env->mstatus | MSTATUS_XS;
1711     write_mstatus(env, csrno, mstatus);
1712     return RISCV_EXCP_NONE;
1713 }
1714 
1715 static RISCVException read_mpmbase(CPURISCVState *env, int csrno,
1716                                    target_ulong *val)
1717 {
1718     *val = env->mpmbase;
1719     return RISCV_EXCP_NONE;
1720 }
1721 
1722 static RISCVException write_mpmbase(CPURISCVState *env, int csrno,
1723                                     target_ulong val)
1724 {
1725     uint64_t mstatus;
1726 
1727     env->mpmbase = val;
1728     env->mmte |= PM_EXT_DIRTY;
1729 
1730     /* Set XS and SD bits, since PM CSRs are dirty */
1731     mstatus = env->mstatus | MSTATUS_XS;
1732     write_mstatus(env, csrno, mstatus);
1733     return RISCV_EXCP_NONE;
1734 }
1735 
1736 static RISCVException read_spmbase(CPURISCVState *env, int csrno,
1737                                    target_ulong *val)
1738 {
1739     *val = env->spmbase;
1740     return RISCV_EXCP_NONE;
1741 }
1742 
1743 static RISCVException write_spmbase(CPURISCVState *env, int csrno,
1744                                     target_ulong val)
1745 {
1746     uint64_t mstatus;
1747 
1748     /* if pm.current==0 we can't modify current PM CSRs */
1749     if (check_pm_current_disabled(env, csrno)) {
1750         return RISCV_EXCP_NONE;
1751     }
1752     env->spmbase = val;
1753     env->mmte |= PM_EXT_DIRTY;
1754 
1755     /* Set XS and SD bits, since PM CSRs are dirty */
1756     mstatus = env->mstatus | MSTATUS_XS;
1757     write_mstatus(env, csrno, mstatus);
1758     return RISCV_EXCP_NONE;
1759 }
1760 
1761 static RISCVException read_upmbase(CPURISCVState *env, int csrno,
1762                                    target_ulong *val)
1763 {
1764     *val = env->upmbase;
1765     return RISCV_EXCP_NONE;
1766 }
1767 
1768 static RISCVException write_upmbase(CPURISCVState *env, int csrno,
1769                                     target_ulong val)
1770 {
1771     uint64_t mstatus;
1772 
1773     /* if pm.current==0 we can't modify current PM CSRs */
1774     if (check_pm_current_disabled(env, csrno)) {
1775         return RISCV_EXCP_NONE;
1776     }
1777     env->upmbase = val;
1778     env->mmte |= PM_EXT_DIRTY;
1779 
1780     /* Set XS and SD bits, since PM CSRs are dirty */
1781     mstatus = env->mstatus | MSTATUS_XS;
1782     write_mstatus(env, csrno, mstatus);
1783     return RISCV_EXCP_NONE;
1784 }
1785 
1786 #endif
1787 
1788 /*
1789  * riscv_csrrw - read and/or update control and status register
1790  *
1791  * csrr   <->  riscv_csrrw(env, csrno, ret_value, 0, 0);
1792  * csrrw  <->  riscv_csrrw(env, csrno, ret_value, value, -1);
1793  * csrrs  <->  riscv_csrrw(env, csrno, ret_value, -1, value);
1794  * csrrc  <->  riscv_csrrw(env, csrno, ret_value, 0, value);
1795  */
1796 
1797 static inline RISCVException riscv_csrrw_check(CPURISCVState *env,
1798                                                int csrno,
1799                                                bool write_mask,
1800                                                RISCVCPU *cpu)
1801 {
1802     /* check privileges and return RISCV_EXCP_ILLEGAL_INST if check fails */
1803     int read_only = get_field(csrno, 0xC00) == 3;
1804 #if !defined(CONFIG_USER_ONLY)
1805     int effective_priv = env->priv;
1806 
1807     if (riscv_has_ext(env, RVH) &&
1808         env->priv == PRV_S &&
1809         !riscv_cpu_virt_enabled(env)) {
1810         /*
1811          * We are in S mode without virtualisation, therefore we are in HS Mode.
1812          * Add 1 to the effective privledge level to allow us to access the
1813          * Hypervisor CSRs.
1814          */
1815         effective_priv++;
1816     }
1817 
1818     if (!env->debugger && (effective_priv < get_field(csrno, 0x300))) {
1819         return RISCV_EXCP_ILLEGAL_INST;
1820     }
1821 #endif
1822     if (write_mask && read_only) {
1823         return RISCV_EXCP_ILLEGAL_INST;
1824     }
1825 
1826     /* ensure the CSR extension is enabled. */
1827     if (!cpu->cfg.ext_icsr) {
1828         return RISCV_EXCP_ILLEGAL_INST;
1829     }
1830 
1831     /* check predicate */
1832     if (!csr_ops[csrno].predicate) {
1833         return RISCV_EXCP_ILLEGAL_INST;
1834     }
1835 
1836     return csr_ops[csrno].predicate(env, csrno);
1837 }
1838 
1839 static RISCVException riscv_csrrw_do64(CPURISCVState *env, int csrno,
1840                                        target_ulong *ret_value,
1841                                        target_ulong new_value,
1842                                        target_ulong write_mask)
1843 {
1844     RISCVException ret;
1845     target_ulong old_value;
1846 
1847     /* execute combined read/write operation if it exists */
1848     if (csr_ops[csrno].op) {
1849         return csr_ops[csrno].op(env, csrno, ret_value, new_value, write_mask);
1850     }
1851 
1852     /* if no accessor exists then return failure */
1853     if (!csr_ops[csrno].read) {
1854         return RISCV_EXCP_ILLEGAL_INST;
1855     }
1856     /* read old value */
1857     ret = csr_ops[csrno].read(env, csrno, &old_value);
1858     if (ret != RISCV_EXCP_NONE) {
1859         return ret;
1860     }
1861 
1862     /* write value if writable and write mask set, otherwise drop writes */
1863     if (write_mask) {
1864         new_value = (old_value & ~write_mask) | (new_value & write_mask);
1865         if (csr_ops[csrno].write) {
1866             ret = csr_ops[csrno].write(env, csrno, new_value);
1867             if (ret != RISCV_EXCP_NONE) {
1868                 return ret;
1869             }
1870         }
1871     }
1872 
1873     /* return old value */
1874     if (ret_value) {
1875         *ret_value = old_value;
1876     }
1877 
1878     return RISCV_EXCP_NONE;
1879 }
1880 
1881 RISCVException riscv_csrrw(CPURISCVState *env, int csrno,
1882                            target_ulong *ret_value,
1883                            target_ulong new_value, target_ulong write_mask)
1884 {
1885     RISCVCPU *cpu = env_archcpu(env);
1886 
1887     RISCVException ret = riscv_csrrw_check(env, csrno, write_mask, cpu);
1888     if (ret != RISCV_EXCP_NONE) {
1889         return ret;
1890     }
1891 
1892     return riscv_csrrw_do64(env, csrno, ret_value, new_value, write_mask);
1893 }
1894 
1895 static RISCVException riscv_csrrw_do128(CPURISCVState *env, int csrno,
1896                                         Int128 *ret_value,
1897                                         Int128 new_value,
1898                                         Int128 write_mask)
1899 {
1900     RISCVException ret;
1901     Int128 old_value;
1902 
1903     /* read old value */
1904     ret = csr_ops[csrno].read128(env, csrno, &old_value);
1905     if (ret != RISCV_EXCP_NONE) {
1906         return ret;
1907     }
1908 
1909     /* write value if writable and write mask set, otherwise drop writes */
1910     if (int128_nz(write_mask)) {
1911         new_value = int128_or(int128_and(old_value, int128_not(write_mask)),
1912                               int128_and(new_value, write_mask));
1913         if (csr_ops[csrno].write128) {
1914             ret = csr_ops[csrno].write128(env, csrno, new_value);
1915             if (ret != RISCV_EXCP_NONE) {
1916                 return ret;
1917             }
1918         } else if (csr_ops[csrno].write) {
1919             /* avoids having to write wrappers for all registers */
1920             ret = csr_ops[csrno].write(env, csrno, int128_getlo(new_value));
1921             if (ret != RISCV_EXCP_NONE) {
1922                 return ret;
1923             }
1924         }
1925     }
1926 
1927     /* return old value */
1928     if (ret_value) {
1929         *ret_value = old_value;
1930     }
1931 
1932     return RISCV_EXCP_NONE;
1933 }
1934 
1935 RISCVException riscv_csrrw_i128(CPURISCVState *env, int csrno,
1936                                 Int128 *ret_value,
1937                                 Int128 new_value, Int128 write_mask)
1938 {
1939     RISCVException ret;
1940     RISCVCPU *cpu = env_archcpu(env);
1941 
1942     ret = riscv_csrrw_check(env, csrno, int128_nz(write_mask), cpu);
1943     if (ret != RISCV_EXCP_NONE) {
1944         return ret;
1945     }
1946 
1947     if (csr_ops[csrno].read128) {
1948         return riscv_csrrw_do128(env, csrno, ret_value, new_value, write_mask);
1949     }
1950 
1951     /*
1952      * Fall back to 64-bit version for now, if the 128-bit alternative isn't
1953      * at all defined.
1954      * Note, some CSRs don't need to extend to MXLEN (64 upper bits non
1955      * significant), for those, this fallback is correctly handling the accesses
1956      */
1957     target_ulong old_value;
1958     ret = riscv_csrrw_do64(env, csrno, &old_value,
1959                            int128_getlo(new_value),
1960                            int128_getlo(write_mask));
1961     if (ret == RISCV_EXCP_NONE && ret_value) {
1962         *ret_value = int128_make64(old_value);
1963     }
1964     return ret;
1965 }
1966 
1967 /*
1968  * Debugger support.  If not in user mode, set env->debugger before the
1969  * riscv_csrrw call and clear it after the call.
1970  */
1971 RISCVException riscv_csrrw_debug(CPURISCVState *env, int csrno,
1972                                  target_ulong *ret_value,
1973                                  target_ulong new_value,
1974                                  target_ulong write_mask)
1975 {
1976     RISCVException ret;
1977 #if !defined(CONFIG_USER_ONLY)
1978     env->debugger = true;
1979 #endif
1980     ret = riscv_csrrw(env, csrno, ret_value, new_value, write_mask);
1981 #if !defined(CONFIG_USER_ONLY)
1982     env->debugger = false;
1983 #endif
1984     return ret;
1985 }
1986 
1987 /* Control and Status Register function table */
1988 riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = {
1989     /* User Floating-Point CSRs */
1990     [CSR_FFLAGS]   = { "fflags",   fs,     read_fflags,  write_fflags },
1991     [CSR_FRM]      = { "frm",      fs,     read_frm,     write_frm    },
1992     [CSR_FCSR]     = { "fcsr",     fs,     read_fcsr,    write_fcsr   },
1993     /* Vector CSRs */
1994     [CSR_VSTART]   = { "vstart",   vs,     read_vstart,  write_vstart },
1995     [CSR_VXSAT]    = { "vxsat",    vs,     read_vxsat,   write_vxsat  },
1996     [CSR_VXRM]     = { "vxrm",     vs,     read_vxrm,    write_vxrm   },
1997     [CSR_VCSR]     = { "vcsr",     vs,     read_vcsr,    write_vcsr   },
1998     [CSR_VL]       = { "vl",       vs,     read_vl                    },
1999     [CSR_VTYPE]    = { "vtype",    vs,     read_vtype                 },
2000     [CSR_VLENB]    = { "vlenb",    vs,     read_vlenb                 },
2001     /* User Timers and Counters */
2002     [CSR_CYCLE]    = { "cycle",    ctr,    read_instret  },
2003     [CSR_INSTRET]  = { "instret",  ctr,    read_instret  },
2004     [CSR_CYCLEH]   = { "cycleh",   ctr32,  read_instreth },
2005     [CSR_INSTRETH] = { "instreth", ctr32,  read_instreth },
2006 
2007     /*
2008      * In privileged mode, the monitor will have to emulate TIME CSRs only if
2009      * rdtime callback is not provided by machine/platform emulation.
2010      */
2011     [CSR_TIME]  = { "time",  ctr,   read_time  },
2012     [CSR_TIMEH] = { "timeh", ctr32, read_timeh },
2013 
2014 #if !defined(CONFIG_USER_ONLY)
2015     /* Machine Timers and Counters */
2016     [CSR_MCYCLE]    = { "mcycle",    any,   read_instret  },
2017     [CSR_MINSTRET]  = { "minstret",  any,   read_instret  },
2018     [CSR_MCYCLEH]   = { "mcycleh",   any32, read_instreth },
2019     [CSR_MINSTRETH] = { "minstreth", any32, read_instreth },
2020 
2021     /* Machine Information Registers */
2022     [CSR_MVENDORID] = { "mvendorid", any,   read_zero    },
2023     [CSR_MARCHID]   = { "marchid",   any,   read_zero    },
2024     [CSR_MIMPID]    = { "mimpid",    any,   read_zero    },
2025     [CSR_MHARTID]   = { "mhartid",   any,   read_mhartid },
2026 
2027     /* Machine Trap Setup */
2028     [CSR_MSTATUS]     = { "mstatus",    any,   read_mstatus,     write_mstatus, NULL,
2029                                                read_mstatus_i128                   },
2030     [CSR_MISA]        = { "misa",       any,   read_misa,        write_misa, NULL,
2031                                                read_misa_i128                      },
2032     [CSR_MIDELEG]     = { "mideleg",    any,   read_mideleg,     write_mideleg     },
2033     [CSR_MEDELEG]     = { "medeleg",    any,   read_medeleg,     write_medeleg     },
2034     [CSR_MIE]         = { "mie",        any,   read_mie,         write_mie         },
2035     [CSR_MTVEC]       = { "mtvec",      any,   read_mtvec,       write_mtvec       },
2036     [CSR_MCOUNTEREN]  = { "mcounteren", any,   read_mcounteren,  write_mcounteren  },
2037 
2038     [CSR_MSTATUSH]    = { "mstatush",   any32, read_mstatush,    write_mstatush    },
2039 
2040     /* Machine Trap Handling */
2041     [CSR_MSCRATCH] = { "mscratch", any,  read_mscratch,      write_mscratch, NULL,
2042                                          read_mscratch_i128, write_mscratch_i128   },
2043     [CSR_MEPC]     = { "mepc",     any,  read_mepc,     write_mepc     },
2044     [CSR_MCAUSE]   = { "mcause",   any,  read_mcause,   write_mcause   },
2045     [CSR_MTVAL]    = { "mtval",    any,  read_mtval,    write_mtval    },
2046     [CSR_MIP]      = { "mip",      any,  NULL,    NULL, rmw_mip        },
2047 
2048     /* Supervisor Trap Setup */
2049     [CSR_SSTATUS]    = { "sstatus",    smode, read_sstatus,    write_sstatus, NULL,
2050                                               read_sstatus_i128                 },
2051     [CSR_SIE]        = { "sie",        smode, read_sie,        write_sie        },
2052     [CSR_STVEC]      = { "stvec",      smode, read_stvec,      write_stvec      },
2053     [CSR_SCOUNTEREN] = { "scounteren", smode, read_scounteren, write_scounteren },
2054 
2055     /* Supervisor Trap Handling */
2056     [CSR_SSCRATCH] = { "sscratch", smode, read_sscratch, write_sscratch, NULL,
2057                                           read_sscratch_i128, write_sscratch_i128  },
2058     [CSR_SEPC]     = { "sepc",     smode, read_sepc,     write_sepc     },
2059     [CSR_SCAUSE]   = { "scause",   smode, read_scause,   write_scause   },
2060     [CSR_STVAL]    = { "stval",    smode, read_stval,   write_stval   },
2061     [CSR_SIP]      = { "sip",      smode, NULL,    NULL, rmw_sip        },
2062 
2063     /* Supervisor Protection and Translation */
2064     [CSR_SATP]     = { "satp",     smode, read_satp,    write_satp      },
2065 
2066     [CSR_HSTATUS]     = { "hstatus",     hmode,   read_hstatus,     write_hstatus     },
2067     [CSR_HEDELEG]     = { "hedeleg",     hmode,   read_hedeleg,     write_hedeleg     },
2068     [CSR_HIDELEG]     = { "hideleg",     hmode,   read_hideleg,     write_hideleg     },
2069     [CSR_HVIP]        = { "hvip",        hmode,   NULL,   NULL,     rmw_hvip          },
2070     [CSR_HIP]         = { "hip",         hmode,   NULL,   NULL,     rmw_hip           },
2071     [CSR_HIE]         = { "hie",         hmode,   read_hie,         write_hie         },
2072     [CSR_HCOUNTEREN]  = { "hcounteren",  hmode,   read_hcounteren,  write_hcounteren  },
2073     [CSR_HGEIE]       = { "hgeie",       hmode,   read_zero,        write_hgeie       },
2074     [CSR_HTVAL]       = { "htval",       hmode,   read_htval,       write_htval       },
2075     [CSR_HTINST]      = { "htinst",      hmode,   read_htinst,      write_htinst      },
2076     [CSR_HGEIP]       = { "hgeip",       hmode,   read_zero,        write_hgeip       },
2077     [CSR_HGATP]       = { "hgatp",       hmode,   read_hgatp,       write_hgatp       },
2078     [CSR_HTIMEDELTA]  = { "htimedelta",  hmode,   read_htimedelta,  write_htimedelta  },
2079     [CSR_HTIMEDELTAH] = { "htimedeltah", hmode32, read_htimedeltah, write_htimedeltah },
2080 
2081     [CSR_VSSTATUS]    = { "vsstatus",    hmode,   read_vsstatus,    write_vsstatus    },
2082     [CSR_VSIP]        = { "vsip",        hmode,   NULL,    NULL,    rmw_vsip          },
2083     [CSR_VSIE]        = { "vsie",        hmode,   read_vsie,        write_vsie        },
2084     [CSR_VSTVEC]      = { "vstvec",      hmode,   read_vstvec,      write_vstvec      },
2085     [CSR_VSSCRATCH]   = { "vsscratch",   hmode,   read_vsscratch,   write_vsscratch   },
2086     [CSR_VSEPC]       = { "vsepc",       hmode,   read_vsepc,       write_vsepc       },
2087     [CSR_VSCAUSE]     = { "vscause",     hmode,   read_vscause,     write_vscause     },
2088     [CSR_VSTVAL]      = { "vstval",      hmode,   read_vstval,      write_vstval      },
2089     [CSR_VSATP]       = { "vsatp",       hmode,   read_vsatp,       write_vsatp       },
2090 
2091     [CSR_MTVAL2]      = { "mtval2",      hmode,   read_mtval2,      write_mtval2      },
2092     [CSR_MTINST]      = { "mtinst",      hmode,   read_mtinst,      write_mtinst      },
2093 
2094     /* Physical Memory Protection */
2095     [CSR_MSECCFG]    = { "mseccfg",  epmp, read_mseccfg, write_mseccfg },
2096     [CSR_PMPCFG0]    = { "pmpcfg0",   pmp, read_pmpcfg,  write_pmpcfg  },
2097     [CSR_PMPCFG1]    = { "pmpcfg1",   pmp, read_pmpcfg,  write_pmpcfg  },
2098     [CSR_PMPCFG2]    = { "pmpcfg2",   pmp, read_pmpcfg,  write_pmpcfg  },
2099     [CSR_PMPCFG3]    = { "pmpcfg3",   pmp, read_pmpcfg,  write_pmpcfg  },
2100     [CSR_PMPADDR0]   = { "pmpaddr0",  pmp, read_pmpaddr, write_pmpaddr },
2101     [CSR_PMPADDR1]   = { "pmpaddr1",  pmp, read_pmpaddr, write_pmpaddr },
2102     [CSR_PMPADDR2]   = { "pmpaddr2",  pmp, read_pmpaddr, write_pmpaddr },
2103     [CSR_PMPADDR3]   = { "pmpaddr3",  pmp, read_pmpaddr, write_pmpaddr },
2104     [CSR_PMPADDR4]   = { "pmpaddr4",  pmp, read_pmpaddr, write_pmpaddr },
2105     [CSR_PMPADDR5]   = { "pmpaddr5",  pmp, read_pmpaddr, write_pmpaddr },
2106     [CSR_PMPADDR6]   = { "pmpaddr6",  pmp, read_pmpaddr, write_pmpaddr },
2107     [CSR_PMPADDR7]   = { "pmpaddr7",  pmp, read_pmpaddr, write_pmpaddr },
2108     [CSR_PMPADDR8]   = { "pmpaddr8",  pmp, read_pmpaddr, write_pmpaddr },
2109     [CSR_PMPADDR9]   = { "pmpaddr9",  pmp, read_pmpaddr, write_pmpaddr },
2110     [CSR_PMPADDR10]  = { "pmpaddr10", pmp, read_pmpaddr, write_pmpaddr },
2111     [CSR_PMPADDR11]  = { "pmpaddr11", pmp, read_pmpaddr, write_pmpaddr },
2112     [CSR_PMPADDR12]  = { "pmpaddr12", pmp, read_pmpaddr, write_pmpaddr },
2113     [CSR_PMPADDR13]  = { "pmpaddr13", pmp, read_pmpaddr, write_pmpaddr },
2114     [CSR_PMPADDR14] =  { "pmpaddr14", pmp, read_pmpaddr, write_pmpaddr },
2115     [CSR_PMPADDR15] =  { "pmpaddr15", pmp, read_pmpaddr, write_pmpaddr },
2116 
2117     /* User Pointer Masking */
2118     [CSR_UMTE]    =    { "umte",    pointer_masking, read_umte,    write_umte    },
2119     [CSR_UPMMASK] =    { "upmmask", pointer_masking, read_upmmask, write_upmmask },
2120     [CSR_UPMBASE] =    { "upmbase", pointer_masking, read_upmbase, write_upmbase },
2121     /* Machine Pointer Masking */
2122     [CSR_MMTE]    =    { "mmte",    pointer_masking, read_mmte,    write_mmte    },
2123     [CSR_MPMMASK] =    { "mpmmask", pointer_masking, read_mpmmask, write_mpmmask },
2124     [CSR_MPMBASE] =    { "mpmbase", pointer_masking, read_mpmbase, write_mpmbase },
2125     /* Supervisor Pointer Masking */
2126     [CSR_SMTE]    =    { "smte",    pointer_masking, read_smte,    write_smte    },
2127     [CSR_SPMMASK] =    { "spmmask", pointer_masking, read_spmmask, write_spmmask },
2128     [CSR_SPMBASE] =    { "spmbase", pointer_masking, read_spmbase, write_spmbase },
2129 
2130     /* Performance Counters */
2131     [CSR_HPMCOUNTER3]    = { "hpmcounter3",    ctr,    read_zero },
2132     [CSR_HPMCOUNTER4]    = { "hpmcounter4",    ctr,    read_zero },
2133     [CSR_HPMCOUNTER5]    = { "hpmcounter5",    ctr,    read_zero },
2134     [CSR_HPMCOUNTER6]    = { "hpmcounter6",    ctr,    read_zero },
2135     [CSR_HPMCOUNTER7]    = { "hpmcounter7",    ctr,    read_zero },
2136     [CSR_HPMCOUNTER8]    = { "hpmcounter8",    ctr,    read_zero },
2137     [CSR_HPMCOUNTER9]    = { "hpmcounter9",    ctr,    read_zero },
2138     [CSR_HPMCOUNTER10]   = { "hpmcounter10",   ctr,    read_zero },
2139     [CSR_HPMCOUNTER11]   = { "hpmcounter11",   ctr,    read_zero },
2140     [CSR_HPMCOUNTER12]   = { "hpmcounter12",   ctr,    read_zero },
2141     [CSR_HPMCOUNTER13]   = { "hpmcounter13",   ctr,    read_zero },
2142     [CSR_HPMCOUNTER14]   = { "hpmcounter14",   ctr,    read_zero },
2143     [CSR_HPMCOUNTER15]   = { "hpmcounter15",   ctr,    read_zero },
2144     [CSR_HPMCOUNTER16]   = { "hpmcounter16",   ctr,    read_zero },
2145     [CSR_HPMCOUNTER17]   = { "hpmcounter17",   ctr,    read_zero },
2146     [CSR_HPMCOUNTER18]   = { "hpmcounter18",   ctr,    read_zero },
2147     [CSR_HPMCOUNTER19]   = { "hpmcounter19",   ctr,    read_zero },
2148     [CSR_HPMCOUNTER20]   = { "hpmcounter20",   ctr,    read_zero },
2149     [CSR_HPMCOUNTER21]   = { "hpmcounter21",   ctr,    read_zero },
2150     [CSR_HPMCOUNTER22]   = { "hpmcounter22",   ctr,    read_zero },
2151     [CSR_HPMCOUNTER23]   = { "hpmcounter23",   ctr,    read_zero },
2152     [CSR_HPMCOUNTER24]   = { "hpmcounter24",   ctr,    read_zero },
2153     [CSR_HPMCOUNTER25]   = { "hpmcounter25",   ctr,    read_zero },
2154     [CSR_HPMCOUNTER26]   = { "hpmcounter26",   ctr,    read_zero },
2155     [CSR_HPMCOUNTER27]   = { "hpmcounter27",   ctr,    read_zero },
2156     [CSR_HPMCOUNTER28]   = { "hpmcounter28",   ctr,    read_zero },
2157     [CSR_HPMCOUNTER29]   = { "hpmcounter29",   ctr,    read_zero },
2158     [CSR_HPMCOUNTER30]   = { "hpmcounter30",   ctr,    read_zero },
2159     [CSR_HPMCOUNTER31]   = { "hpmcounter31",   ctr,    read_zero },
2160 
2161     [CSR_MHPMCOUNTER3]   = { "mhpmcounter3",   any,    read_zero },
2162     [CSR_MHPMCOUNTER4]   = { "mhpmcounter4",   any,    read_zero },
2163     [CSR_MHPMCOUNTER5]   = { "mhpmcounter5",   any,    read_zero },
2164     [CSR_MHPMCOUNTER6]   = { "mhpmcounter6",   any,    read_zero },
2165     [CSR_MHPMCOUNTER7]   = { "mhpmcounter7",   any,    read_zero },
2166     [CSR_MHPMCOUNTER8]   = { "mhpmcounter8",   any,    read_zero },
2167     [CSR_MHPMCOUNTER9]   = { "mhpmcounter9",   any,    read_zero },
2168     [CSR_MHPMCOUNTER10]  = { "mhpmcounter10",  any,    read_zero },
2169     [CSR_MHPMCOUNTER11]  = { "mhpmcounter11",  any,    read_zero },
2170     [CSR_MHPMCOUNTER12]  = { "mhpmcounter12",  any,    read_zero },
2171     [CSR_MHPMCOUNTER13]  = { "mhpmcounter13",  any,    read_zero },
2172     [CSR_MHPMCOUNTER14]  = { "mhpmcounter14",  any,    read_zero },
2173     [CSR_MHPMCOUNTER15]  = { "mhpmcounter15",  any,    read_zero },
2174     [CSR_MHPMCOUNTER16]  = { "mhpmcounter16",  any,    read_zero },
2175     [CSR_MHPMCOUNTER17]  = { "mhpmcounter17",  any,    read_zero },
2176     [CSR_MHPMCOUNTER18]  = { "mhpmcounter18",  any,    read_zero },
2177     [CSR_MHPMCOUNTER19]  = { "mhpmcounter19",  any,    read_zero },
2178     [CSR_MHPMCOUNTER20]  = { "mhpmcounter20",  any,    read_zero },
2179     [CSR_MHPMCOUNTER21]  = { "mhpmcounter21",  any,    read_zero },
2180     [CSR_MHPMCOUNTER22]  = { "mhpmcounter22",  any,    read_zero },
2181     [CSR_MHPMCOUNTER23]  = { "mhpmcounter23",  any,    read_zero },
2182     [CSR_MHPMCOUNTER24]  = { "mhpmcounter24",  any,    read_zero },
2183     [CSR_MHPMCOUNTER25]  = { "mhpmcounter25",  any,    read_zero },
2184     [CSR_MHPMCOUNTER26]  = { "mhpmcounter26",  any,    read_zero },
2185     [CSR_MHPMCOUNTER27]  = { "mhpmcounter27",  any,    read_zero },
2186     [CSR_MHPMCOUNTER28]  = { "mhpmcounter28",  any,    read_zero },
2187     [CSR_MHPMCOUNTER29]  = { "mhpmcounter29",  any,    read_zero },
2188     [CSR_MHPMCOUNTER30]  = { "mhpmcounter30",  any,    read_zero },
2189     [CSR_MHPMCOUNTER31]  = { "mhpmcounter31",  any,    read_zero },
2190 
2191     [CSR_MHPMEVENT3]     = { "mhpmevent3",     any,    read_zero },
2192     [CSR_MHPMEVENT4]     = { "mhpmevent4",     any,    read_zero },
2193     [CSR_MHPMEVENT5]     = { "mhpmevent5",     any,    read_zero },
2194     [CSR_MHPMEVENT6]     = { "mhpmevent6",     any,    read_zero },
2195     [CSR_MHPMEVENT7]     = { "mhpmevent7",     any,    read_zero },
2196     [CSR_MHPMEVENT8]     = { "mhpmevent8",     any,    read_zero },
2197     [CSR_MHPMEVENT9]     = { "mhpmevent9",     any,    read_zero },
2198     [CSR_MHPMEVENT10]    = { "mhpmevent10",    any,    read_zero },
2199     [CSR_MHPMEVENT11]    = { "mhpmevent11",    any,    read_zero },
2200     [CSR_MHPMEVENT12]    = { "mhpmevent12",    any,    read_zero },
2201     [CSR_MHPMEVENT13]    = { "mhpmevent13",    any,    read_zero },
2202     [CSR_MHPMEVENT14]    = { "mhpmevent14",    any,    read_zero },
2203     [CSR_MHPMEVENT15]    = { "mhpmevent15",    any,    read_zero },
2204     [CSR_MHPMEVENT16]    = { "mhpmevent16",    any,    read_zero },
2205     [CSR_MHPMEVENT17]    = { "mhpmevent17",    any,    read_zero },
2206     [CSR_MHPMEVENT18]    = { "mhpmevent18",    any,    read_zero },
2207     [CSR_MHPMEVENT19]    = { "mhpmevent19",    any,    read_zero },
2208     [CSR_MHPMEVENT20]    = { "mhpmevent20",    any,    read_zero },
2209     [CSR_MHPMEVENT21]    = { "mhpmevent21",    any,    read_zero },
2210     [CSR_MHPMEVENT22]    = { "mhpmevent22",    any,    read_zero },
2211     [CSR_MHPMEVENT23]    = { "mhpmevent23",    any,    read_zero },
2212     [CSR_MHPMEVENT24]    = { "mhpmevent24",    any,    read_zero },
2213     [CSR_MHPMEVENT25]    = { "mhpmevent25",    any,    read_zero },
2214     [CSR_MHPMEVENT26]    = { "mhpmevent26",    any,    read_zero },
2215     [CSR_MHPMEVENT27]    = { "mhpmevent27",    any,    read_zero },
2216     [CSR_MHPMEVENT28]    = { "mhpmevent28",    any,    read_zero },
2217     [CSR_MHPMEVENT29]    = { "mhpmevent29",    any,    read_zero },
2218     [CSR_MHPMEVENT30]    = { "mhpmevent30",    any,    read_zero },
2219     [CSR_MHPMEVENT31]    = { "mhpmevent31",    any,    read_zero },
2220 
2221     [CSR_HPMCOUNTER3H]   = { "hpmcounter3h",   ctr32,  read_zero },
2222     [CSR_HPMCOUNTER4H]   = { "hpmcounter4h",   ctr32,  read_zero },
2223     [CSR_HPMCOUNTER5H]   = { "hpmcounter5h",   ctr32,  read_zero },
2224     [CSR_HPMCOUNTER6H]   = { "hpmcounter6h",   ctr32,  read_zero },
2225     [CSR_HPMCOUNTER7H]   = { "hpmcounter7h",   ctr32,  read_zero },
2226     [CSR_HPMCOUNTER8H]   = { "hpmcounter8h",   ctr32,  read_zero },
2227     [CSR_HPMCOUNTER9H]   = { "hpmcounter9h",   ctr32,  read_zero },
2228     [CSR_HPMCOUNTER10H]  = { "hpmcounter10h",  ctr32,  read_zero },
2229     [CSR_HPMCOUNTER11H]  = { "hpmcounter11h",  ctr32,  read_zero },
2230     [CSR_HPMCOUNTER12H]  = { "hpmcounter12h",  ctr32,  read_zero },
2231     [CSR_HPMCOUNTER13H]  = { "hpmcounter13h",  ctr32,  read_zero },
2232     [CSR_HPMCOUNTER14H]  = { "hpmcounter14h",  ctr32,  read_zero },
2233     [CSR_HPMCOUNTER15H]  = { "hpmcounter15h",  ctr32,  read_zero },
2234     [CSR_HPMCOUNTER16H]  = { "hpmcounter16h",  ctr32,  read_zero },
2235     [CSR_HPMCOUNTER17H]  = { "hpmcounter17h",  ctr32,  read_zero },
2236     [CSR_HPMCOUNTER18H]  = { "hpmcounter18h",  ctr32,  read_zero },
2237     [CSR_HPMCOUNTER19H]  = { "hpmcounter19h",  ctr32,  read_zero },
2238     [CSR_HPMCOUNTER20H]  = { "hpmcounter20h",  ctr32,  read_zero },
2239     [CSR_HPMCOUNTER21H]  = { "hpmcounter21h",  ctr32,  read_zero },
2240     [CSR_HPMCOUNTER22H]  = { "hpmcounter22h",  ctr32,  read_zero },
2241     [CSR_HPMCOUNTER23H]  = { "hpmcounter23h",  ctr32,  read_zero },
2242     [CSR_HPMCOUNTER24H]  = { "hpmcounter24h",  ctr32,  read_zero },
2243     [CSR_HPMCOUNTER25H]  = { "hpmcounter25h",  ctr32,  read_zero },
2244     [CSR_HPMCOUNTER26H]  = { "hpmcounter26h",  ctr32,  read_zero },
2245     [CSR_HPMCOUNTER27H]  = { "hpmcounter27h",  ctr32,  read_zero },
2246     [CSR_HPMCOUNTER28H]  = { "hpmcounter28h",  ctr32,  read_zero },
2247     [CSR_HPMCOUNTER29H]  = { "hpmcounter29h",  ctr32,  read_zero },
2248     [CSR_HPMCOUNTER30H]  = { "hpmcounter30h",  ctr32,  read_zero },
2249     [CSR_HPMCOUNTER31H]  = { "hpmcounter31h",  ctr32,  read_zero },
2250 
2251     [CSR_MHPMCOUNTER3H]  = { "mhpmcounter3h",  any32,  read_zero },
2252     [CSR_MHPMCOUNTER4H]  = { "mhpmcounter4h",  any32,  read_zero },
2253     [CSR_MHPMCOUNTER5H]  = { "mhpmcounter5h",  any32,  read_zero },
2254     [CSR_MHPMCOUNTER6H]  = { "mhpmcounter6h",  any32,  read_zero },
2255     [CSR_MHPMCOUNTER7H]  = { "mhpmcounter7h",  any32,  read_zero },
2256     [CSR_MHPMCOUNTER8H]  = { "mhpmcounter8h",  any32,  read_zero },
2257     [CSR_MHPMCOUNTER9H]  = { "mhpmcounter9h",  any32,  read_zero },
2258     [CSR_MHPMCOUNTER10H] = { "mhpmcounter10h", any32,  read_zero },
2259     [CSR_MHPMCOUNTER11H] = { "mhpmcounter11h", any32,  read_zero },
2260     [CSR_MHPMCOUNTER12H] = { "mhpmcounter12h", any32,  read_zero },
2261     [CSR_MHPMCOUNTER13H] = { "mhpmcounter13h", any32,  read_zero },
2262     [CSR_MHPMCOUNTER14H] = { "mhpmcounter14h", any32,  read_zero },
2263     [CSR_MHPMCOUNTER15H] = { "mhpmcounter15h", any32,  read_zero },
2264     [CSR_MHPMCOUNTER16H] = { "mhpmcounter16h", any32,  read_zero },
2265     [CSR_MHPMCOUNTER17H] = { "mhpmcounter17h", any32,  read_zero },
2266     [CSR_MHPMCOUNTER18H] = { "mhpmcounter18h", any32,  read_zero },
2267     [CSR_MHPMCOUNTER19H] = { "mhpmcounter19h", any32,  read_zero },
2268     [CSR_MHPMCOUNTER20H] = { "mhpmcounter20h", any32,  read_zero },
2269     [CSR_MHPMCOUNTER21H] = { "mhpmcounter21h", any32,  read_zero },
2270     [CSR_MHPMCOUNTER22H] = { "mhpmcounter22h", any32,  read_zero },
2271     [CSR_MHPMCOUNTER23H] = { "mhpmcounter23h", any32,  read_zero },
2272     [CSR_MHPMCOUNTER24H] = { "mhpmcounter24h", any32,  read_zero },
2273     [CSR_MHPMCOUNTER25H] = { "mhpmcounter25h", any32,  read_zero },
2274     [CSR_MHPMCOUNTER26H] = { "mhpmcounter26h", any32,  read_zero },
2275     [CSR_MHPMCOUNTER27H] = { "mhpmcounter27h", any32,  read_zero },
2276     [CSR_MHPMCOUNTER28H] = { "mhpmcounter28h", any32,  read_zero },
2277     [CSR_MHPMCOUNTER29H] = { "mhpmcounter29h", any32,  read_zero },
2278     [CSR_MHPMCOUNTER30H] = { "mhpmcounter30h", any32,  read_zero },
2279     [CSR_MHPMCOUNTER31H] = { "mhpmcounter31h", any32,  read_zero },
2280 #endif /* !CONFIG_USER_ONLY */
2281 };
2282