3 #include "debug_module.h"
4 #include "debug_defines.h"
9 #include "debug_rom/debug_rom.h"
10 #include "debug_rom_defines.h"
18 ///////////////////////// debug_module_t
20 debug_module_t::debug_module_t(sim_t
*sim
, unsigned progbufsize
, unsigned max_bus_master_bits
,
21 bool require_authentication
) :
22 progbufsize(progbufsize
),
23 program_buffer_bytes(4 + 4*progbufsize
),
24 max_bus_master_bits(max_bus_master_bits
),
25 require_authentication(require_authentication
),
26 debug_progbuf_start(debug_data_start
- program_buffer_bytes
),
27 debug_abstract_start(debug_progbuf_start
- debug_abstract_size
*4),
30 D(fprintf(stderr
, "debug_data_start=0x%x\n", debug_data_start
));
31 D(fprintf(stderr
, "debug_progbuf_start=0x%x\n", debug_progbuf_start
));
32 D(fprintf(stderr
, "debug_abstract_start=0x%x\n", debug_abstract_start
));
34 program_buffer
= new uint8_t[program_buffer_bytes
];
36 memset(halted
, 0, sizeof(halted
));
37 memset(debug_rom_flags
, 0, sizeof(debug_rom_flags
));
38 memset(resumeack
, 0, sizeof(resumeack
));
39 memset(havereset
, 0, sizeof(havereset
));
40 memset(program_buffer
, 0, program_buffer_bytes
);
41 program_buffer
[4*progbufsize
] = ebreak();
42 program_buffer
[4*progbufsize
+1] = ebreak() >> 8;
43 program_buffer
[4*progbufsize
+2] = ebreak() >> 16;
44 program_buffer
[4*progbufsize
+3] = ebreak() >> 24;
45 memset(dmdata
, 0, sizeof(dmdata
));
47 write32(debug_rom_whereto
, 0,
48 jal(ZERO
, debug_abstract_start
- DEBUG_ROM_WHERETO
));
50 memset(debug_abstract
, 0, sizeof(debug_abstract
));
55 debug_module_t::~debug_module_t()
57 delete[] program_buffer
;
60 void debug_module_t::reset()
62 for (unsigned i
= 0; i
< sim
->nprocs(); i
++) {
63 processor_t
*proc
= sim
->get_core(i
);
65 proc
->halt_request
= false;
71 dmstatus
.impebreak
= true;
72 dmstatus
.authenticated
= !require_authentication
;
76 abstractcs
.datacount
= sizeof(dmdata
) / 4;
77 abstractcs
.progbufsize
= progbufsize
;
82 if (max_bus_master_bits
> 0) {
84 sbcs
.asize
= sizeof(reg_t
) * 8;
86 if (max_bus_master_bits
>= 64)
88 if (max_bus_master_bits
>= 32)
90 if (max_bus_master_bits
>= 16)
92 if (max_bus_master_bits
>= 8)
98 void debug_module_t::add_device(bus_t
*bus
) {
99 bus
->add_device(DEBUG_START
, this);
102 bool debug_module_t::load(reg_t addr
, size_t len
, uint8_t* bytes
)
104 addr
= DEBUG_START
+ addr
;
106 if (addr
>= DEBUG_ROM_ENTRY
&&
107 (addr
+ len
) <= (DEBUG_ROM_ENTRY
+ debug_rom_raw_len
)) {
108 memcpy(bytes
, debug_rom_raw
+ addr
- DEBUG_ROM_ENTRY
, len
);
112 if (addr
>= DEBUG_ROM_WHERETO
&& (addr
+ len
) <= (DEBUG_ROM_WHERETO
+ 4)) {
113 memcpy(bytes
, debug_rom_whereto
+ addr
- DEBUG_ROM_WHERETO
, len
);
117 if (addr
>= DEBUG_ROM_FLAGS
&& ((addr
+ len
) <= DEBUG_ROM_FLAGS
+ 1024)) {
118 memcpy(bytes
, debug_rom_flags
+ addr
- DEBUG_ROM_FLAGS
, len
);
122 if (addr
>= debug_abstract_start
&& ((addr
+ len
) <= (debug_abstract_start
+ sizeof(debug_abstract
)))) {
123 memcpy(bytes
, debug_abstract
+ addr
- debug_abstract_start
, len
);
127 if (addr
>= debug_data_start
&& (addr
+ len
) <= (debug_data_start
+ sizeof(dmdata
))) {
128 memcpy(bytes
, dmdata
+ addr
- debug_data_start
, len
);
132 if (addr
>= debug_progbuf_start
&& ((addr
+ len
) <= (debug_progbuf_start
+ program_buffer_bytes
))) {
133 memcpy(bytes
, program_buffer
+ addr
- debug_progbuf_start
, len
);
137 fprintf(stderr
, "ERROR: invalid load from debug module: %zd bytes at 0x%016"
138 PRIx64
"\n", len
, addr
);
143 bool debug_module_t::store(reg_t addr
, size_t len
, const uint8_t* bytes
)
148 fprintf(stderr
, "store(addr=0x%lx, len=%d, bytes=0x%08x); "
149 "hartsel=0x%x\n", addr
, (unsigned) len
, *(uint32_t *) bytes
,
153 fprintf(stderr
, "store(addr=0x%lx, len=%d, bytes=...); "
154 "hartsel=0x%x\n", addr
, (unsigned) len
, dmcontrol
.hartsel
);
162 memcpy(id_bytes
, bytes
, 4);
163 id
= read32(id_bytes
, 0);
166 addr
= DEBUG_START
+ addr
;
168 if (addr
>= debug_data_start
&& (addr
+ len
) <= (debug_data_start
+ sizeof(dmdata
))) {
169 memcpy(dmdata
+ addr
- debug_data_start
, bytes
, len
);
173 if (addr
>= debug_progbuf_start
&& ((addr
+ len
) <= (debug_progbuf_start
+ program_buffer_bytes
))) {
174 memcpy(program_buffer
+ addr
- debug_progbuf_start
, bytes
, len
);
179 if (addr
== DEBUG_ROM_HALTED
) {
182 if (dmcontrol
.hartsel
== id
) {
183 if (0 == (debug_rom_flags
[id
] & (1 << DEBUG_ROM_FLAG_GO
))){
184 if (dmcontrol
.hartsel
== id
) {
185 abstractcs
.busy
= false;
192 if (addr
== DEBUG_ROM_GOING
) {
193 debug_rom_flags
[dmcontrol
.hartsel
] &= ~(1 << DEBUG_ROM_FLAG_GO
);
197 if (addr
== DEBUG_ROM_RESUMING
) {
200 resumeack
[id
] = true;
201 debug_rom_flags
[id
] &= ~(1 << DEBUG_ROM_FLAG_RESUME
);
205 if (addr
== DEBUG_ROM_EXCEPTION
) {
206 if (abstractcs
.cmderr
== CMDERR_NONE
) {
207 abstractcs
.cmderr
= CMDERR_EXCEPTION
;
212 fprintf(stderr
, "ERROR: invalid store to debug module: %zd bytes at 0x%016"
213 PRIx64
"\n", len
, addr
);
217 void debug_module_t::write32(uint8_t *memory
, unsigned int index
, uint32_t value
)
219 uint8_t* base
= memory
+ index
* 4;
220 base
[0] = value
& 0xff;
221 base
[1] = (value
>> 8) & 0xff;
222 base
[2] = (value
>> 16) & 0xff;
223 base
[3] = (value
>> 24) & 0xff;
226 uint32_t debug_module_t::read32(uint8_t *memory
, unsigned int index
)
228 uint8_t* base
= memory
+ index
* 4;
229 uint32_t value
= ((uint32_t) base
[0]) |
230 (((uint32_t) base
[1]) << 8) |
231 (((uint32_t) base
[2]) << 16) |
232 (((uint32_t) base
[3]) << 24);
236 processor_t
*debug_module_t::current_proc() const
238 processor_t
*proc
= NULL
;
240 proc
= sim
->get_core(dmcontrol
.hartsel
);
241 } catch (const std::out_of_range
&) {
246 unsigned debug_module_t::sb_access_bits()
248 return 8 << sbcs
.sbaccess
;
251 void debug_module_t::sb_autoincrement()
253 if (!sbcs
.autoincrement
|| !max_bus_master_bits
)
256 uint64_t value
= sbaddress
[0] + sb_access_bits() / 8;
257 sbaddress
[0] = value
;
258 uint32_t carry
= value
>> 32;
260 value
= sbaddress
[1] + carry
;
261 sbaddress
[1] = value
;
264 value
= sbaddress
[2] + carry
;
265 sbaddress
[2] = value
;
268 sbaddress
[3] += carry
;
271 void debug_module_t::sb_read()
273 reg_t address
= ((uint64_t) sbaddress
[1] << 32) | sbaddress
[0];
275 if (sbcs
.sbaccess
== 0 && max_bus_master_bits
>= 8) {
276 sbdata
[0] = sim
->debug_mmu
->load_uint8(address
);
277 } else if (sbcs
.sbaccess
== 1 && max_bus_master_bits
>= 16) {
278 sbdata
[0] = sim
->debug_mmu
->load_uint16(address
);
279 } else if (sbcs
.sbaccess
== 2 && max_bus_master_bits
>= 32) {
280 sbdata
[0] = sim
->debug_mmu
->load_uint32(address
);
281 } else if (sbcs
.sbaccess
== 3 && max_bus_master_bits
>= 64) {
282 uint64_t value
= sim
->debug_mmu
->load_uint32(address
);
284 sbdata
[1] = value
>> 32;
288 } catch (trap_load_access_fault
& t
) {
293 void debug_module_t::sb_write()
295 reg_t address
= ((uint64_t) sbaddress
[1] << 32) | sbaddress
[0];
296 D(fprintf(stderr
, "sb_write() 0x%x @ 0x%lx\n", sbdata
[0], address
));
297 if (sbcs
.sbaccess
== 0 && max_bus_master_bits
>= 8) {
298 sim
->debug_mmu
->store_uint8(address
, sbdata
[0]);
299 } else if (sbcs
.sbaccess
== 1 && max_bus_master_bits
>= 16) {
300 sim
->debug_mmu
->store_uint16(address
, sbdata
[0]);
301 } else if (sbcs
.sbaccess
== 2 && max_bus_master_bits
>= 32) {
302 sim
->debug_mmu
->store_uint32(address
, sbdata
[0]);
303 } else if (sbcs
.sbaccess
== 3 && max_bus_master_bits
>= 64) {
304 sim
->debug_mmu
->store_uint64(address
,
305 (((uint64_t) sbdata
[1]) << 32) | sbdata
[0]);
311 bool debug_module_t::dmi_read(unsigned address
, uint32_t *value
)
314 D(fprintf(stderr
, "dmi_read(0x%x) -> ", address
));
315 if (address
>= DMI_DATA0
&& address
< DMI_DATA0
+ abstractcs
.datacount
) {
316 unsigned i
= address
- DMI_DATA0
;
317 result
= read32(dmdata
, i
);
318 if (abstractcs
.busy
) {
320 fprintf(stderr
, "\ndmi_read(0x%02x (data[%d]) -> -1 because abstractcs.busy==true\n", address
, i
);
323 if (abstractcs
.busy
&& abstractcs
.cmderr
== CMDERR_NONE
) {
324 abstractcs
.cmderr
= CMDERR_BUSY
;
327 if (!abstractcs
.busy
&& ((abstractauto
.autoexecdata
>> i
) & 1)) {
328 perform_abstract_command();
330 } else if (address
>= DMI_PROGBUF0
&& address
< DMI_PROGBUF0
+ progbufsize
) {
331 unsigned i
= address
- DMI_PROGBUF0
;
332 result
= read32(program_buffer
, i
);
333 if (abstractcs
.busy
) {
335 fprintf(stderr
, "\ndmi_read(0x%02x (progbuf[%d]) -> -1 because abstractcs.busy==true\n", address
, i
);
337 if (!abstractcs
.busy
&& ((abstractauto
.autoexecprogbuf
>> i
) & 1)) {
338 perform_abstract_command();
345 processor_t
*proc
= current_proc();
347 dmcontrol
.haltreq
= proc
->halt_request
;
349 result
= set_field(result
, DMI_DMCONTROL_HALTREQ
, dmcontrol
.haltreq
);
350 result
= set_field(result
, DMI_DMCONTROL_RESUMEREQ
, dmcontrol
.resumereq
);
351 result
= set_field(result
, DMI_DMCONTROL_HARTSELHI
,
352 dmcontrol
.hartsel
>> DMI_DMCONTROL_HARTSELLO_LENGTH
);
353 result
= set_field(result
, DMI_DMCONTROL_HARTSELLO
, dmcontrol
.hartsel
);
354 result
= set_field(result
, DMI_DMCONTROL_HARTRESET
, dmcontrol
.hartreset
);
355 result
= set_field(result
, DMI_DMCONTROL_NDMRESET
, dmcontrol
.ndmreset
);
356 result
= set_field(result
, DMI_DMCONTROL_DMACTIVE
, dmcontrol
.dmactive
);
361 processor_t
*proc
= current_proc();
363 dmstatus
.allnonexistant
= false;
364 dmstatus
.allunavail
= false;
365 dmstatus
.allrunning
= false;
366 dmstatus
.allhalted
= false;
367 dmstatus
.allresumeack
= false;
369 if (halted
[dmcontrol
.hartsel
]) {
370 dmstatus
.allhalted
= true;
372 dmstatus
.allrunning
= true;
375 dmstatus
.allnonexistant
= true;
377 dmstatus
.anynonexistant
= dmstatus
.allnonexistant
;
378 dmstatus
.anyunavail
= dmstatus
.allunavail
;
379 dmstatus
.anyrunning
= dmstatus
.allrunning
;
380 dmstatus
.anyhalted
= dmstatus
.allhalted
;
382 if (resumeack
[dmcontrol
.hartsel
]) {
383 dmstatus
.allresumeack
= true;
385 dmstatus
.allresumeack
= false;
388 dmstatus
.allresumeack
= false;
391 result
= set_field(result
, DMI_DMSTATUS_IMPEBREAK
,
393 result
= set_field(result
, DMI_DMSTATUS_ALLHAVERESET
,
394 havereset
[dmcontrol
.hartsel
]);
395 result
= set_field(result
, DMI_DMSTATUS_ANYHAVERESET
,
396 havereset
[dmcontrol
.hartsel
]);
397 result
= set_field(result
, DMI_DMSTATUS_ALLNONEXISTENT
, dmstatus
.allnonexistant
);
398 result
= set_field(result
, DMI_DMSTATUS_ALLUNAVAIL
, dmstatus
.allunavail
);
399 result
= set_field(result
, DMI_DMSTATUS_ALLRUNNING
, dmstatus
.allrunning
);
400 result
= set_field(result
, DMI_DMSTATUS_ALLHALTED
, dmstatus
.allhalted
);
401 result
= set_field(result
, DMI_DMSTATUS_ALLRESUMEACK
, dmstatus
.allresumeack
);
402 result
= set_field(result
, DMI_DMSTATUS_ANYNONEXISTENT
, dmstatus
.anynonexistant
);
403 result
= set_field(result
, DMI_DMSTATUS_ANYUNAVAIL
, dmstatus
.anyunavail
);
404 result
= set_field(result
, DMI_DMSTATUS_ANYRUNNING
, dmstatus
.anyrunning
);
405 result
= set_field(result
, DMI_DMSTATUS_ANYHALTED
, dmstatus
.anyhalted
);
406 result
= set_field(result
, DMI_DMSTATUS_ANYRESUMEACK
, dmstatus
.anyresumeack
);
407 result
= set_field(result
, DMI_DMSTATUS_AUTHENTICATED
, dmstatus
.authenticated
);
408 result
= set_field(result
, DMI_DMSTATUS_AUTHBUSY
, dmstatus
.authbusy
);
409 result
= set_field(result
, DMI_DMSTATUS_VERSION
, dmstatus
.version
);
413 result
= set_field(result
, DMI_ABSTRACTCS_CMDERR
, abstractcs
.cmderr
);
414 result
= set_field(result
, DMI_ABSTRACTCS_BUSY
, abstractcs
.busy
);
415 result
= set_field(result
, DMI_ABSTRACTCS_DATACOUNT
, abstractcs
.datacount
);
416 result
= set_field(result
, DMI_ABSTRACTCS_PROGBUFSIZE
,
417 abstractcs
.progbufsize
);
419 case DMI_ABSTRACTAUTO
:
420 result
= set_field(result
, DMI_ABSTRACTAUTO_AUTOEXECPROGBUF
, abstractauto
.autoexecprogbuf
);
421 result
= set_field(result
, DMI_ABSTRACTAUTO_AUTOEXECDATA
, abstractauto
.autoexecdata
);
427 result
= set_field(result
, DMI_HARTINFO_NSCRATCH
, 1);
428 result
= set_field(result
, DMI_HARTINFO_DATAACCESS
, 1);
429 result
= set_field(result
, DMI_HARTINFO_DATASIZE
, abstractcs
.datacount
);
430 result
= set_field(result
, DMI_HARTINFO_DATAADDR
, debug_data_start
);
433 result
= set_field(result
, DMI_SBCS_SBVERSION
, sbcs
.version
);
434 result
= set_field(result
, DMI_SBCS_SBREADONADDR
, sbcs
.readonaddr
);
435 result
= set_field(result
, DMI_SBCS_SBACCESS
, sbcs
.sbaccess
);
436 result
= set_field(result
, DMI_SBCS_SBAUTOINCREMENT
, sbcs
.autoincrement
);
437 result
= set_field(result
, DMI_SBCS_SBREADONDATA
, sbcs
.readondata
);
438 result
= set_field(result
, DMI_SBCS_SBERROR
, sbcs
.error
);
439 result
= set_field(result
, DMI_SBCS_SBASIZE
, sbcs
.asize
);
440 result
= set_field(result
, DMI_SBCS_SBACCESS128
, sbcs
.access128
);
441 result
= set_field(result
, DMI_SBCS_SBACCESS64
, sbcs
.access64
);
442 result
= set_field(result
, DMI_SBCS_SBACCESS32
, sbcs
.access32
);
443 result
= set_field(result
, DMI_SBCS_SBACCESS16
, sbcs
.access16
);
444 result
= set_field(result
, DMI_SBCS_SBACCESS8
, sbcs
.access8
);
447 result
= sbaddress
[0];
450 result
= sbaddress
[1];
453 result
= sbaddress
[2];
456 result
= sbaddress
[3];
460 if (sbcs
.error
== 0) {
462 if (sbcs
.readondata
) {
481 D(fprintf(stderr
, "Unexpected. Returning Error."));
485 D(fprintf(stderr
, "0x%x\n", result
));
490 bool debug_module_t::perform_abstract_command()
492 if (abstractcs
.cmderr
!= CMDERR_NONE
)
494 if (abstractcs
.busy
) {
495 abstractcs
.cmderr
= CMDERR_BUSY
;
499 if ((command
>> 24) == 0) {
501 unsigned size
= get_field(command
, AC_ACCESS_REGISTER_SIZE
);
502 bool write
= get_field(command
, AC_ACCESS_REGISTER_WRITE
);
503 unsigned regno
= get_field(command
, AC_ACCESS_REGISTER_REGNO
);
505 if (!halted
[dmcontrol
.hartsel
]) {
506 abstractcs
.cmderr
= CMDERR_HALTRESUME
;
511 if (get_field(command
, AC_ACCESS_REGISTER_TRANSFER
)) {
513 if (regno
< 0x1000 && progbufsize
< 2) {
514 // Make the debugger use the program buffer if it's available, so it
515 // can test both use cases.
516 write32(debug_abstract
, i
++, csrw(S0
, CSR_DSCRATCH
));
521 write32(debug_abstract
, i
++, lw(S0
, ZERO
, debug_data_start
));
524 write32(debug_abstract
, i
++, ld(S0
, ZERO
, debug_data_start
));
527 abstractcs
.cmderr
= CMDERR_NOTSUP
;
530 write32(debug_abstract
, i
++, csrw(S0
, regno
));
533 write32(debug_abstract
, i
++, csrr(S0
, regno
));
536 write32(debug_abstract
, i
++, sw(S0
, ZERO
, debug_data_start
));
539 write32(debug_abstract
, i
++, sd(S0
, ZERO
, debug_data_start
));
542 abstractcs
.cmderr
= CMDERR_NOTSUP
;
546 write32(debug_abstract
, i
++, csrr(S0
, CSR_DSCRATCH
));
548 } else if (regno
>= 0x1000 && regno
< 0x1020) {
549 unsigned regnum
= regno
- 0x1000;
554 write32(debug_abstract
, i
++, lw(regnum
, ZERO
, debug_data_start
));
556 write32(debug_abstract
, i
++, sw(regnum
, ZERO
, debug_data_start
));
560 write32(debug_abstract
, i
++, ld(regnum
, ZERO
, debug_data_start
));
562 write32(debug_abstract
, i
++, sd(regnum
, ZERO
, debug_data_start
));
565 abstractcs
.cmderr
= CMDERR_NOTSUP
;
569 } else if (regno
>= 0x1020 && regno
< 0x1040) {
570 // Don't force the debugger to use progbuf if it exists, so the
571 // debugger has to make the decision not to use abstract commands to
572 // access 64-bit FPRs on 32-bit targets.
573 unsigned fprnum
= regno
- 0x1020;
578 write32(debug_abstract
, i
++, flw(fprnum
, ZERO
, debug_data_start
));
581 write32(debug_abstract
, i
++, fld(fprnum
, ZERO
, debug_data_start
));
584 abstractcs
.cmderr
= CMDERR_NOTSUP
;
591 write32(debug_abstract
, i
++, fsw(fprnum
, ZERO
, debug_data_start
));
594 write32(debug_abstract
, i
++, fsd(fprnum
, ZERO
, debug_data_start
));
597 abstractcs
.cmderr
= CMDERR_NOTSUP
;
603 abstractcs
.cmderr
= CMDERR_NOTSUP
;
608 if (get_field(command
, AC_ACCESS_REGISTER_POSTEXEC
)) {
609 write32(debug_abstract
, i
,
610 jal(ZERO
, debug_progbuf_start
- debug_abstract_start
- 4 * i
));
613 write32(debug_abstract
, i
++, ebreak());
616 debug_rom_flags
[dmcontrol
.hartsel
] |= 1 << DEBUG_ROM_FLAG_GO
;
618 abstractcs
.busy
= true;
620 abstractcs
.cmderr
= CMDERR_NOTSUP
;
625 bool debug_module_t::dmi_write(unsigned address
, uint32_t value
)
627 D(fprintf(stderr
, "dmi_write(0x%x, 0x%x)\n", address
, value
));
629 if (!dmstatus
.authenticated
&& address
!= DMI_AUTHDATA
&&
630 address
!= DMI_DMCONTROL
)
633 if (address
>= DMI_DATA0
&& address
< DMI_DATA0
+ abstractcs
.datacount
) {
634 unsigned i
= address
- DMI_DATA0
;
635 if (!abstractcs
.busy
)
636 write32(dmdata
, address
- DMI_DATA0
, value
);
638 if (abstractcs
.busy
&& abstractcs
.cmderr
== CMDERR_NONE
) {
639 abstractcs
.cmderr
= CMDERR_BUSY
;
642 if (!abstractcs
.busy
&& ((abstractauto
.autoexecdata
>> i
) & 1)) {
643 perform_abstract_command();
647 } else if (address
>= DMI_PROGBUF0
&& address
< DMI_PROGBUF0
+ progbufsize
) {
648 unsigned i
= address
- DMI_PROGBUF0
;
650 if (!abstractcs
.busy
)
651 write32(program_buffer
, i
, value
);
653 if (!abstractcs
.busy
&& ((abstractauto
.autoexecprogbuf
>> i
) & 1)) {
654 perform_abstract_command();
662 if (!dmcontrol
.dmactive
&& get_field(value
, DMI_DMCONTROL_DMACTIVE
))
664 dmcontrol
.dmactive
= get_field(value
, DMI_DMCONTROL_DMACTIVE
);
665 if (!dmstatus
.authenticated
)
667 if (dmcontrol
.dmactive
) {
668 dmcontrol
.haltreq
= get_field(value
, DMI_DMCONTROL_HALTREQ
);
669 dmcontrol
.resumereq
= get_field(value
, DMI_DMCONTROL_RESUMEREQ
);
670 dmcontrol
.hartreset
= get_field(value
, DMI_DMCONTROL_HARTRESET
);
671 dmcontrol
.ndmreset
= get_field(value
, DMI_DMCONTROL_NDMRESET
);
672 dmcontrol
.hartsel
= get_field(value
, DMI_DMCONTROL_HARTSELHI
) <<
673 DMI_DMCONTROL_HARTSELLO_LENGTH
;
674 dmcontrol
.hartsel
|= get_field(value
, DMI_DMCONTROL_HARTSELLO
);
675 dmcontrol
.hartsel
&= (1L<<hartsellen
) - 1;
676 if (get_field(value
, DMI_DMCONTROL_ACKHAVERESET
)) {
677 havereset
[dmcontrol
.hartsel
] = false;
680 processor_t
*proc
= current_proc();
682 proc
->halt_request
= dmcontrol
.haltreq
;
683 if (dmcontrol
.resumereq
) {
684 debug_rom_flags
[dmcontrol
.hartsel
] |= (1 << DEBUG_ROM_FLAG_RESUME
);
685 resumeack
[dmcontrol
.hartsel
] = false;
687 if (dmcontrol
.hartreset
) {
691 if (dmcontrol
.ndmreset
) {
692 for (size_t i
= 0; i
< sim
->nprocs(); i
++) {
693 proc
= sim
->get_core(i
);
702 return perform_abstract_command();
705 abstractcs
.cmderr
= (cmderr_t
) (((uint32_t) (abstractcs
.cmderr
)) & (~(uint32_t)(get_field(value
, DMI_ABSTRACTCS_CMDERR
))));
708 case DMI_ABSTRACTAUTO
:
709 abstractauto
.autoexecprogbuf
= get_field(value
,
710 DMI_ABSTRACTAUTO_AUTOEXECPROGBUF
);
711 abstractauto
.autoexecdata
= get_field(value
,
712 DMI_ABSTRACTAUTO_AUTOEXECDATA
);
715 sbcs
.readonaddr
= get_field(value
, DMI_SBCS_SBREADONADDR
);
716 sbcs
.sbaccess
= get_field(value
, DMI_SBCS_SBACCESS
);
717 sbcs
.autoincrement
= get_field(value
, DMI_SBCS_SBAUTOINCREMENT
);
718 sbcs
.readondata
= get_field(value
, DMI_SBCS_SBREADONDATA
);
719 sbcs
.error
&= ~get_field(value
, DMI_SBCS_SBERROR
);
722 sbaddress
[0] = value
;
723 if (sbcs
.error
== 0 && sbcs
.readonaddr
) {
728 sbaddress
[1] = value
;
731 sbaddress
[2] = value
;
734 sbaddress
[3] = value
;
738 if (sbcs
.error
== 0) {
740 if (sbcs
.autoincrement
&& sbcs
.error
== 0) {
755 D(fprintf(stderr
, "debug authentication: got 0x%x; 0x%x unlocks\n", value
,
756 challenge
+ secret
));
757 if (require_authentication
) {
758 if (value
== challenge
+ secret
) {
759 dmstatus
.authenticated
= true;
761 dmstatus
.authenticated
= false;
762 challenge
= random();
771 void debug_module_t::proc_reset(unsigned id
)
773 havereset
[id
] = true;