4 * Copyright (c) 2012 SUSE LINUX Products GmbH
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see
18 * <http://www.gnu.org/licenses/lgpl-2.1.html>
21 #include "qemu/osdep.h"
22 #include "qemu/cutils.h"
23 #include "qemu/qemu-print.h"
24 #include "qapi/error.h"
28 #include "qemu/module.h"
29 #include "sysemu/kvm.h"
30 #include "sysemu/qtest.h"
31 #include "exec/exec-all.h"
32 #include "hw/qdev-properties.h"
33 #include "hw/qdev-clock.h"
34 #include "hw/semihosting/semihost.h"
35 #include "qapi/qapi-commands-machine-target.h"
37 static void mips_cpu_set_pc(CPUState
*cs
, vaddr value
)
39 MIPSCPU
*cpu
= MIPS_CPU(cs
);
40 CPUMIPSState
*env
= &cpu
->env
;
42 env
->active_tc
.PC
= value
& ~(target_ulong
)1;
44 env
->hflags
|= MIPS_HFLAG_M16
;
46 env
->hflags
&= ~(MIPS_HFLAG_M16
);
50 static void mips_cpu_synchronize_from_tb(CPUState
*cs
, TranslationBlock
*tb
)
52 MIPSCPU
*cpu
= MIPS_CPU(cs
);
53 CPUMIPSState
*env
= &cpu
->env
;
55 env
->active_tc
.PC
= tb
->pc
;
56 env
->hflags
&= ~MIPS_HFLAG_BMASK
;
57 env
->hflags
|= tb
->flags
& MIPS_HFLAG_BMASK
;
60 static bool mips_cpu_has_work(CPUState
*cs
)
62 MIPSCPU
*cpu
= MIPS_CPU(cs
);
63 CPUMIPSState
*env
= &cpu
->env
;
64 bool has_work
= false;
67 * Prior to MIPS Release 6 it is implementation dependent if non-enabled
68 * interrupts wake-up the CPU, however most of the implementations only
69 * check for interrupts that can be taken.
71 if ((cs
->interrupt_request
& CPU_INTERRUPT_HARD
) &&
72 cpu_mips_hw_interrupts_pending(env
)) {
73 if (cpu_mips_hw_interrupts_enabled(env
) ||
74 (env
->insn_flags
& ISA_MIPS32R6
)) {
79 /* MIPS-MT has the ability to halt the CPU. */
80 if (ase_mt_available(env
)) {
82 * The QEMU model will issue an _WAKE request whenever the CPUs
85 if (cs
->interrupt_request
& CPU_INTERRUPT_WAKE
) {
89 if (!mips_vpe_active(env
)) {
93 /* MIPS Release 6 has the ability to halt the CPU. */
94 if (env
->CP0_Config5
& (1 << CP0C5_VP
)) {
95 if (cs
->interrupt_request
& CPU_INTERRUPT_WAKE
) {
98 if (!mips_vp_active(env
)) {
105 #include "translate_init.c.inc"
107 /* TODO QOM'ify CPU reset and remove */
108 static void cpu_state_reset(CPUMIPSState
*env
)
110 CPUState
*cs
= env_cpu(env
);
112 /* Reset registers to their default values */
113 env
->CP0_PRid
= env
->cpu_model
->CP0_PRid
;
114 env
->CP0_Config0
= env
->cpu_model
->CP0_Config0
;
115 #ifdef TARGET_WORDS_BIGENDIAN
116 env
->CP0_Config0
|= (1 << CP0C0_BE
);
118 env
->CP0_Config1
= env
->cpu_model
->CP0_Config1
;
119 env
->CP0_Config2
= env
->cpu_model
->CP0_Config2
;
120 env
->CP0_Config3
= env
->cpu_model
->CP0_Config3
;
121 env
->CP0_Config4
= env
->cpu_model
->CP0_Config4
;
122 env
->CP0_Config4_rw_bitmask
= env
->cpu_model
->CP0_Config4_rw_bitmask
;
123 env
->CP0_Config5
= env
->cpu_model
->CP0_Config5
;
124 env
->CP0_Config5_rw_bitmask
= env
->cpu_model
->CP0_Config5_rw_bitmask
;
125 env
->CP0_Config6
= env
->cpu_model
->CP0_Config6
;
126 env
->CP0_Config6_rw_bitmask
= env
->cpu_model
->CP0_Config6_rw_bitmask
;
127 env
->CP0_Config7
= env
->cpu_model
->CP0_Config7
;
128 env
->CP0_Config7_rw_bitmask
= env
->cpu_model
->CP0_Config7_rw_bitmask
;
129 env
->CP0_LLAddr_rw_bitmask
= env
->cpu_model
->CP0_LLAddr_rw_bitmask
130 << env
->cpu_model
->CP0_LLAddr_shift
;
131 env
->CP0_LLAddr_shift
= env
->cpu_model
->CP0_LLAddr_shift
;
132 env
->SYNCI_Step
= env
->cpu_model
->SYNCI_Step
;
133 env
->CCRes
= env
->cpu_model
->CCRes
;
134 env
->CP0_Status_rw_bitmask
= env
->cpu_model
->CP0_Status_rw_bitmask
;
135 env
->CP0_TCStatus_rw_bitmask
= env
->cpu_model
->CP0_TCStatus_rw_bitmask
;
136 env
->CP0_SRSCtl
= env
->cpu_model
->CP0_SRSCtl
;
138 env
->SEGBITS
= env
->cpu_model
->SEGBITS
;
139 env
->SEGMask
= (target_ulong
)((1ULL << env
->cpu_model
->SEGBITS
) - 1);
140 #if defined(TARGET_MIPS64)
141 if (env
->cpu_model
->insn_flags
& ISA_MIPS3
) {
142 env
->SEGMask
|= 3ULL << 62;
145 env
->PABITS
= env
->cpu_model
->PABITS
;
146 env
->CP0_SRSConf0_rw_bitmask
= env
->cpu_model
->CP0_SRSConf0_rw_bitmask
;
147 env
->CP0_SRSConf0
= env
->cpu_model
->CP0_SRSConf0
;
148 env
->CP0_SRSConf1_rw_bitmask
= env
->cpu_model
->CP0_SRSConf1_rw_bitmask
;
149 env
->CP0_SRSConf1
= env
->cpu_model
->CP0_SRSConf1
;
150 env
->CP0_SRSConf2_rw_bitmask
= env
->cpu_model
->CP0_SRSConf2_rw_bitmask
;
151 env
->CP0_SRSConf2
= env
->cpu_model
->CP0_SRSConf2
;
152 env
->CP0_SRSConf3_rw_bitmask
= env
->cpu_model
->CP0_SRSConf3_rw_bitmask
;
153 env
->CP0_SRSConf3
= env
->cpu_model
->CP0_SRSConf3
;
154 env
->CP0_SRSConf4_rw_bitmask
= env
->cpu_model
->CP0_SRSConf4_rw_bitmask
;
155 env
->CP0_SRSConf4
= env
->cpu_model
->CP0_SRSConf4
;
156 env
->CP0_PageGrain_rw_bitmask
= env
->cpu_model
->CP0_PageGrain_rw_bitmask
;
157 env
->CP0_PageGrain
= env
->cpu_model
->CP0_PageGrain
;
158 env
->CP0_EBaseWG_rw_bitmask
= env
->cpu_model
->CP0_EBaseWG_rw_bitmask
;
159 env
->active_fpu
.fcr0
= env
->cpu_model
->CP1_fcr0
;
160 env
->active_fpu
.fcr31_rw_bitmask
= env
->cpu_model
->CP1_fcr31_rw_bitmask
;
161 env
->active_fpu
.fcr31
= env
->cpu_model
->CP1_fcr31
;
162 env
->msair
= env
->cpu_model
->MSAIR
;
163 env
->insn_flags
= env
->cpu_model
->insn_flags
;
165 #if defined(CONFIG_USER_ONLY)
166 env
->CP0_Status
= (MIPS_HFLAG_UM
<< CP0St_KSU
);
167 # ifdef TARGET_MIPS64
168 /* Enable 64-bit register mode. */
169 env
->CP0_Status
|= (1 << CP0St_PX
);
171 # ifdef TARGET_ABI_MIPSN64
172 /* Enable 64-bit address mode. */
173 env
->CP0_Status
|= (1 << CP0St_UX
);
176 * Enable access to the CPUNum, SYNCI_Step, CC, and CCRes RDHWR
177 * hardware registers.
179 env
->CP0_HWREna
|= 0x0000000F;
180 if (env
->CP0_Config1
& (1 << CP0C1_FP
)) {
181 env
->CP0_Status
|= (1 << CP0St_CU1
);
183 if (env
->CP0_Config3
& (1 << CP0C3_DSPP
)) {
184 env
->CP0_Status
|= (1 << CP0St_MX
);
186 # if defined(TARGET_MIPS64)
187 /* For MIPS64, init FR bit to 1 if FPU unit is there and bit is writable. */
188 if ((env
->CP0_Config1
& (1 << CP0C1_FP
)) &&
189 (env
->CP0_Status_rw_bitmask
& (1 << CP0St_FR
))) {
190 env
->CP0_Status
|= (1 << CP0St_FR
);
193 #else /* !CONFIG_USER_ONLY */
194 if (env
->hflags
& MIPS_HFLAG_BMASK
) {
196 * If the exception was raised from a delay slot,
197 * come back to the jump.
199 env
->CP0_ErrorEPC
= (env
->active_tc
.PC
200 - (env
->hflags
& MIPS_HFLAG_B16
? 2 : 4));
202 env
->CP0_ErrorEPC
= env
->active_tc
.PC
;
204 env
->active_tc
.PC
= env
->exception_base
;
205 env
->CP0_Random
= env
->tlb
->nb_tlb
- 1;
206 env
->tlb
->tlb_in_use
= env
->tlb
->nb_tlb
;
208 env
->CP0_GlobalNumber
= (cs
->cpu_index
& 0xFF) << CP0GN_VPId
;
209 env
->CP0_EBase
= (cs
->cpu_index
& 0x3FF);
210 if (mips_um_ksegs_enabled()) {
211 env
->CP0_EBase
|= 0x40000000;
213 env
->CP0_EBase
|= (int32_t)0x80000000;
215 if (env
->CP0_Config3
& (1 << CP0C3_CMGCR
)) {
216 env
->CP0_CMGCRBase
= 0x1fbf8000 >> 4;
218 env
->CP0_EntryHi_ASID_mask
= (env
->CP0_Config5
& (1 << CP0C5_MI
)) ?
219 0x0 : (env
->CP0_Config4
& (1 << CP0C4_AE
)) ? 0x3ff : 0xff;
220 env
->CP0_Status
= (1 << CP0St_BEV
) | (1 << CP0St_ERL
);
222 * Vectored interrupts not implemented, timer on int 7,
223 * no performance counters.
225 env
->CP0_IntCtl
= 0xe0000000;
229 for (i
= 0; i
< 7; i
++) {
230 env
->CP0_WatchLo
[i
] = 0;
231 env
->CP0_WatchHi
[i
] = 0x80000000;
233 env
->CP0_WatchLo
[7] = 0;
234 env
->CP0_WatchHi
[7] = 0;
236 /* Count register increments in debug mode, EJTAG version 1 */
237 env
->CP0_Debug
= (1 << CP0DB_CNT
) | (0x1 << CP0DB_VER
);
239 cpu_mips_store_count(env
, 1);
241 if (ase_mt_available(env
)) {
244 /* Only TC0 on VPE 0 starts as active. */
245 for (i
= 0; i
< ARRAY_SIZE(env
->tcs
); i
++) {
246 env
->tcs
[i
].CP0_TCBind
= cs
->cpu_index
<< CP0TCBd_CurVPE
;
247 env
->tcs
[i
].CP0_TCHalt
= 1;
249 env
->active_tc
.CP0_TCHalt
= 1;
252 if (cs
->cpu_index
== 0) {
253 /* VPE0 starts up enabled. */
254 env
->mvp
->CP0_MVPControl
|= (1 << CP0MVPCo_EVP
);
255 env
->CP0_VPEConf0
|= (1 << CP0VPEC0_MVP
) | (1 << CP0VPEC0_VPA
);
257 /* TC0 starts up unhalted. */
259 env
->active_tc
.CP0_TCHalt
= 0;
260 env
->tcs
[0].CP0_TCHalt
= 0;
261 /* With thread 0 active. */
262 env
->active_tc
.CP0_TCStatus
= (1 << CP0TCSt_A
);
263 env
->tcs
[0].CP0_TCStatus
= (1 << CP0TCSt_A
);
268 * Configure default legacy segmentation control. We use this regardless of
269 * whether segmentation control is presented to the guest.
271 /* KSeg3 (seg0 0xE0000000..0xFFFFFFFF) */
272 env
->CP0_SegCtl0
= (CP0SC_AM_MK
<< CP0SC_AM
);
273 /* KSeg2 (seg1 0xC0000000..0xDFFFFFFF) */
274 env
->CP0_SegCtl0
|= ((CP0SC_AM_MSK
<< CP0SC_AM
)) << 16;
275 /* KSeg1 (seg2 0xA0000000..0x9FFFFFFF) */
276 env
->CP0_SegCtl1
= (0 << CP0SC_PA
) | (CP0SC_AM_UK
<< CP0SC_AM
) |
278 /* KSeg0 (seg3 0x80000000..0x9FFFFFFF) */
279 env
->CP0_SegCtl1
|= ((0 << CP0SC_PA
) | (CP0SC_AM_UK
<< CP0SC_AM
) |
280 (3 << CP0SC_C
)) << 16;
281 /* USeg (seg4 0x40000000..0x7FFFFFFF) */
282 env
->CP0_SegCtl2
= (2 << CP0SC_PA
) | (CP0SC_AM_MUSK
<< CP0SC_AM
) |
283 (1 << CP0SC_EU
) | (2 << CP0SC_C
);
284 /* USeg (seg5 0x00000000..0x3FFFFFFF) */
285 env
->CP0_SegCtl2
|= ((0 << CP0SC_PA
) | (CP0SC_AM_MUSK
<< CP0SC_AM
) |
286 (1 << CP0SC_EU
) | (2 << CP0SC_C
)) << 16;
287 /* XKPhys (note, SegCtl2.XR = 0, so XAM won't be used) */
288 env
->CP0_SegCtl1
|= (CP0SC_AM_UK
<< CP0SC1_XAM
);
289 #endif /* !CONFIG_USER_ONLY */
290 if ((env
->insn_flags
& ISA_MIPS32R6
) &&
291 (env
->active_fpu
.fcr0
& (1 << FCR0_F64
))) {
292 /* Status.FR = 0 mode in 64-bit FPU not allowed in R6 */
293 env
->CP0_Status
|= (1 << CP0St_FR
);
296 if (env
->insn_flags
& ISA_MIPS32R6
) {
298 env
->CP0_PWSize
= 0x40;
304 env
->CP0_PWField
= 0x0C30C302;
311 env
->CP0_PWField
= 0x02;
314 if (env
->CP0_Config3
& (1 << CP0C3_ISA
) & (1 << (CP0C3_ISA
+ 1))) {
315 /* microMIPS on reset when Config3.ISA is 3 */
316 env
->hflags
|= MIPS_HFLAG_M16
;
320 if (env
->CP0_Config3
& (1 << CP0C3_MSAP
)) {
325 restore_fp_status(env
);
327 cs
->exception_index
= EXCP_NONE
;
329 if (semihosting_get_argc()) {
330 /* UHI interface can be used to obtain argc and argv */
331 env
->active_tc
.gpr
[4] = -1;
335 static void mips_cpu_reset(DeviceState
*dev
)
337 CPUState
*s
= CPU(dev
);
338 MIPSCPU
*cpu
= MIPS_CPU(s
);
339 MIPSCPUClass
*mcc
= MIPS_CPU_GET_CLASS(cpu
);
340 CPUMIPSState
*env
= &cpu
->env
;
342 mcc
->parent_reset(dev
);
344 memset(env
, 0, offsetof(CPUMIPSState
, end_reset_fields
));
346 cpu_state_reset(env
);
348 #ifndef CONFIG_USER_ONLY
350 kvm_mips_reset_vcpu(cpu
);
355 static void mips_cpu_disas_set_info(CPUState
*s
, disassemble_info
*info
)
357 MIPSCPU
*cpu
= MIPS_CPU(s
);
358 CPUMIPSState
*env
= &cpu
->env
;
360 if (!(env
->insn_flags
& ISA_NANOMIPS32
)) {
361 #ifdef TARGET_WORDS_BIGENDIAN
362 info
->print_insn
= print_insn_big_mips
;
364 info
->print_insn
= print_insn_little_mips
;
367 #if defined(CONFIG_NANOMIPS_DIS)
368 info
->print_insn
= print_insn_nanomips
;
374 * Since commit 6af0bf9c7c3 this model assumes a CPU clocked at 200MHz.
376 #define CPU_FREQ_HZ_DEFAULT 200000000
377 #define CP0_COUNT_RATE_DEFAULT 2
379 static void mips_cp0_period_set(MIPSCPU
*cpu
)
381 CPUMIPSState
*env
= &cpu
->env
;
383 env
->cp0_count_ns
= cpu
->cp0_count_rate
384 * clock_get_ns(MIPS_CPU(cpu
)->clock
);
385 assert(env
->cp0_count_ns
);
388 static void mips_cpu_realizefn(DeviceState
*dev
, Error
**errp
)
390 CPUState
*cs
= CPU(dev
);
391 MIPSCPU
*cpu
= MIPS_CPU(dev
);
392 CPUMIPSState
*env
= &cpu
->env
;
393 MIPSCPUClass
*mcc
= MIPS_CPU_GET_CLASS(dev
);
394 Error
*local_err
= NULL
;
396 if (!clock_get(cpu
->clock
)) {
397 #ifndef CONFIG_USER_ONLY
398 if (!qtest_enabled()) {
399 g_autofree
char *cpu_freq_str
= freq_to_str(CPU_FREQ_HZ_DEFAULT
);
401 warn_report("CPU input clock is not connected to any output clock, "
402 "using default frequency of %s.", cpu_freq_str
);
405 /* Initialize the frequency in case the clock remains unconnected. */
406 clock_set_hz(cpu
->clock
, CPU_FREQ_HZ_DEFAULT
);
408 mips_cp0_period_set(cpu
);
410 cpu_exec_realizefn(cs
, &local_err
);
411 if (local_err
!= NULL
) {
412 error_propagate(errp
, local_err
);
416 env
->exception_base
= (int32_t)0xBFC00000;
418 #ifndef CONFIG_USER_ONLY
419 mmu_init(env
, env
->cpu_model
);
421 fpu_init(env
, env
->cpu_model
);
427 mcc
->parent_realize(dev
, errp
);
430 static void mips_cpu_initfn(Object
*obj
)
432 MIPSCPU
*cpu
= MIPS_CPU(obj
);
433 CPUMIPSState
*env
= &cpu
->env
;
434 MIPSCPUClass
*mcc
= MIPS_CPU_GET_CLASS(obj
);
436 cpu_set_cpustate_pointers(cpu
);
437 cpu
->clock
= qdev_init_clock_in(DEVICE(obj
), "clk-in", NULL
, cpu
);
438 env
->cpu_model
= mcc
->cpu_def
;
441 static char *mips_cpu_type_name(const char *cpu_model
)
443 return g_strdup_printf(MIPS_CPU_TYPE_NAME("%s"), cpu_model
);
446 static ObjectClass
*mips_cpu_class_by_name(const char *cpu_model
)
451 typename
= mips_cpu_type_name(cpu_model
);
452 oc
= object_class_by_name(typename
);
457 static Property mips_cpu_properties
[] = {
458 /* CP0 timer running at half the clock of the CPU */
459 DEFINE_PROP_UINT32("cp0-count-rate", MIPSCPU
, cp0_count_rate
,
460 CP0_COUNT_RATE_DEFAULT
),
461 DEFINE_PROP_END_OF_LIST()
464 static void mips_cpu_class_init(ObjectClass
*c
, void *data
)
466 MIPSCPUClass
*mcc
= MIPS_CPU_CLASS(c
);
467 CPUClass
*cc
= CPU_CLASS(c
);
468 DeviceClass
*dc
= DEVICE_CLASS(c
);
470 device_class_set_parent_realize(dc
, mips_cpu_realizefn
,
471 &mcc
->parent_realize
);
472 device_class_set_parent_reset(dc
, mips_cpu_reset
, &mcc
->parent_reset
);
473 device_class_set_props(dc
, mips_cpu_properties
);
475 cc
->class_by_name
= mips_cpu_class_by_name
;
476 cc
->has_work
= mips_cpu_has_work
;
477 cc
->do_interrupt
= mips_cpu_do_interrupt
;
478 cc
->cpu_exec_interrupt
= mips_cpu_exec_interrupt
;
479 cc
->dump_state
= mips_cpu_dump_state
;
480 cc
->set_pc
= mips_cpu_set_pc
;
481 cc
->synchronize_from_tb
= mips_cpu_synchronize_from_tb
;
482 cc
->gdb_read_register
= mips_cpu_gdb_read_register
;
483 cc
->gdb_write_register
= mips_cpu_gdb_write_register
;
484 #ifndef CONFIG_USER_ONLY
485 cc
->do_transaction_failed
= mips_cpu_do_transaction_failed
;
486 cc
->do_unaligned_access
= mips_cpu_do_unaligned_access
;
487 cc
->get_phys_page_debug
= mips_cpu_get_phys_page_debug
;
488 cc
->vmsd
= &vmstate_mips_cpu
;
490 cc
->disas_set_info
= mips_cpu_disas_set_info
;
492 cc
->tcg_initialize
= mips_tcg_init
;
493 cc
->tlb_fill
= mips_cpu_tlb_fill
;
496 cc
->gdb_num_core_regs
= 73;
497 cc
->gdb_stop_before_watchpoint
= true;
500 static const TypeInfo mips_cpu_type_info
= {
501 .name
= TYPE_MIPS_CPU
,
503 .instance_size
= sizeof(MIPSCPU
),
504 .instance_init
= mips_cpu_initfn
,
506 .class_size
= sizeof(MIPSCPUClass
),
507 .class_init
= mips_cpu_class_init
,
510 static void mips_cpu_cpudef_class_init(ObjectClass
*oc
, void *data
)
512 MIPSCPUClass
*mcc
= MIPS_CPU_CLASS(oc
);
516 static void mips_register_cpudef_type(const struct mips_def_t
*def
)
518 char *typename
= mips_cpu_type_name(def
->name
);
521 .parent
= TYPE_MIPS_CPU
,
522 .class_init
= mips_cpu_cpudef_class_init
,
523 .class_data
= (void *)def
,
530 static void mips_cpu_register_types(void)
534 type_register_static(&mips_cpu_type_info
);
535 for (i
= 0; i
< mips_defs_number
; i
++) {
536 mips_register_cpudef_type(&mips_defs
[i
]);
540 type_init(mips_cpu_register_types
)
542 static void mips_cpu_add_definition(gpointer data
, gpointer user_data
)
544 ObjectClass
*oc
= data
;
545 CpuDefinitionInfoList
**cpu_list
= user_data
;
546 CpuDefinitionInfo
*info
;
547 const char *typename
;
549 typename
= object_class_get_name(oc
);
550 info
= g_malloc0(sizeof(*info
));
551 info
->name
= g_strndup(typename
,
552 strlen(typename
) - strlen("-" TYPE_MIPS_CPU
));
553 info
->q_typename
= g_strdup(typename
);
555 QAPI_LIST_PREPEND(*cpu_list
, info
);
558 CpuDefinitionInfoList
*qmp_query_cpu_definitions(Error
**errp
)
560 CpuDefinitionInfoList
*cpu_list
= NULL
;
563 list
= object_class_get_list(TYPE_MIPS_CPU
, false);
564 g_slist_foreach(list
, mips_cpu_add_definition
, &cpu_list
);
570 /* Could be used by generic CPU object */
571 MIPSCPU
*mips_cpu_create_with_clock(const char *cpu_type
, Clock
*cpu_refclk
)
575 cpu
= DEVICE(object_new(cpu_type
));
576 qdev_connect_clock_in(cpu
, "clk-in", cpu_refclk
);
577 qdev_realize(cpu
, NULL
, &error_abort
);
579 return MIPS_CPU(cpu
);
582 bool cpu_supports_isa(const CPUMIPSState
*env
, uint64_t isa_mask
)
584 return (env
->cpu_model
->insn_flags
& isa_mask
) != 0;
587 bool cpu_type_supports_isa(const char *cpu_type
, uint64_t isa
)
589 const MIPSCPUClass
*mcc
= MIPS_CPU_CLASS(object_class_by_name(cpu_type
));
590 return (mcc
->cpu_def
->insn_flags
& isa
) != 0;
593 bool cpu_type_supports_cps_smp(const char *cpu_type
)
595 const MIPSCPUClass
*mcc
= MIPS_CPU_CLASS(object_class_by_name(cpu_type
));
596 return (mcc
->cpu_def
->CP0_Config3
& (1 << CP0C3_CMGCR
)) != 0;
599 void cpu_set_exception_base(int vp_index
, target_ulong address
)
601 MIPSCPU
*vp
= MIPS_CPU(qemu_get_cpu(vp_index
));
602 vp
->env
.exception_base
= address
;