2 * defines common to all virtual CPUs
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
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, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #if defined(__arm__) || defined(__sparc__)
27 /* some important defines:
29 * WORDS_ALIGNED : if defined, the host cpu can only make word aligned
32 * WORDS_BIGENDIAN : if defined, the host cpu is big endian and
33 * otherwise little endian.
35 * (TARGET_WORDS_ALIGNED : same for target cpu (not supported yet))
37 * TARGET_WORDS_BIGENDIAN : same for target cpu
42 #if defined(WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
48 static inline uint16_t tswap16(uint16_t s)
53 static inline uint32_t tswap32(uint32_t s)
58 static inline uint64_t tswap64(uint64_t s)
63 static inline void tswap16s(uint16_t *s)
68 static inline void tswap32s(uint32_t *s)
73 static inline void tswap64s(uint64_t *s)
80 static inline uint16_t tswap16(uint16_t s)
85 static inline uint32_t tswap32(uint32_t s)
90 static inline uint64_t tswap64(uint64_t s)
95 static inline void tswap16s(uint16_t *s)
99 static inline void tswap32s(uint32_t *s)
103 static inline void tswap64s(uint64_t *s)
109 #if TARGET_LONG_SIZE == 4
110 #define tswapl(s) tswap32(s)
111 #define tswapls(s) tswap32s((uint32_t *)(s))
113 #define tswapl(s) tswap64(s)
114 #define tswapls(s) tswap64s((uint64_t *)(s))
117 /* NOTE: arm FPA is horrible as double 32 bit words are stored in big
121 #if defined(WORDS_BIGENDIAN) || (defined(__arm__) && !defined(__VFP_FP__))
135 /* CPU memory access without any memory or io remapping */
138 * the generic syntax for the memory accesses is:
140 * load: ld{type}{sign}{size}{endian}_{access_type}(ptr)
142 * store: st{type}{size}{endian}_{access_type}(ptr, val)
145 * (empty): integer access
149 * (empty): for floats or 32 bit size
160 * (empty): target cpu endianness or 8 bit access
161 * r : reversed target cpu endianness (not implemented yet)
162 * be : big endian (not implemented yet)
163 * le : little endian (not implemented yet)
166 * raw : host memory access
167 * user : user mode access using soft MMU
168 * kernel : kernel mode access using soft MMU
170 static inline int ldub_p(void *ptr)
172 return *(uint8_t *)ptr;
175 static inline int ldsb_p(void *ptr)
177 return *(int8_t *)ptr;
180 static inline void stb_p(void *ptr, int v)
185 /* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the
186 kernel handles unaligned load/stores may give better results, but
187 it is a system wide setting : bad */
188 #if !defined(TARGET_WORDS_BIGENDIAN) && (defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED))
190 /* conservative code for little endian unaligned accesses */
191 static inline int lduw_p(void *ptr)
195 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
199 return p[0] | (p[1] << 8);
203 static inline int ldsw_p(void *ptr)
207 __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
211 return (int16_t)(p[0] | (p[1] << 8));
215 static inline int ldl_p(void *ptr)
219 __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr));
223 return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
227 static inline uint64_t ldq_p(void *ptr)
233 return v1 | ((uint64_t)v2 << 32);
236 static inline void stw_p(void *ptr, int v)
239 __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr));
247 static inline void stl_p(void *ptr, int v)
250 __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr));
260 static inline void stq_p(void *ptr, uint64_t v)
263 stl_p(p, (uint32_t)v);
264 stl_p(p + 4, v >> 32);
269 static inline float ldfl_p(void *ptr)
279 static inline void stfl_p(void *ptr, float v)
289 static inline double ldfq_p(void *ptr)
292 u.l.lower = ldl_p(ptr);
293 u.l.upper = ldl_p(ptr + 4);
297 static inline void stfq_p(void *ptr, double v)
301 stl_p(ptr, u.l.lower);
302 stl_p(ptr + 4, u.l.upper);
305 #elif defined(TARGET_WORDS_BIGENDIAN) && (!defined(WORDS_BIGENDIAN) || defined(WORDS_ALIGNED))
307 static inline int lduw_p(void *ptr)
309 #if defined(__i386__)
311 asm volatile ("movzwl %1, %0\n"
314 : "m" (*(uint16_t *)ptr));
317 uint8_t *b = (uint8_t *) ptr;
318 return ((b[0] << 8) | b[1]);
322 static inline int ldsw_p(void *ptr)
324 #if defined(__i386__)
326 asm volatile ("movzwl %1, %0\n"
329 : "m" (*(uint16_t *)ptr));
332 uint8_t *b = (uint8_t *) ptr;
333 return (int16_t)((b[0] << 8) | b[1]);
337 static inline int ldl_p(void *ptr)
339 #if defined(__i386__) || defined(__x86_64__)
341 asm volatile ("movl %1, %0\n"
344 : "m" (*(uint32_t *)ptr));
347 uint8_t *b = (uint8_t *) ptr;
348 return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
352 static inline uint64_t ldq_p(void *ptr)
357 return (((uint64_t)a<<32)|b);
360 static inline void stw_p(void *ptr, int v)
362 #if defined(__i386__)
363 asm volatile ("xchgb %b0, %h0\n"
366 : "m" (*(uint16_t *)ptr), "0" (v));
368 uint8_t *d = (uint8_t *) ptr;
374 static inline void stl_p(void *ptr, int v)
376 #if defined(__i386__) || defined(__x86_64__)
377 asm volatile ("bswap %0\n"
380 : "m" (*(uint32_t *)ptr), "0" (v));
382 uint8_t *d = (uint8_t *) ptr;
390 static inline void stq_p(void *ptr, uint64_t v)
398 static inline float ldfl_p(void *ptr)
408 static inline void stfl_p(void *ptr, float v)
418 static inline double ldfq_p(void *ptr)
421 u.l.upper = ldl_p(ptr);
422 u.l.lower = ldl_p(ptr + 4);
426 static inline void stfq_p(void *ptr, double v)
430 stl_p(ptr, u.l.upper);
431 stl_p(ptr + 4, u.l.lower);
436 static inline int lduw_p(void *ptr)
438 return *(uint16_t *)ptr;
441 static inline int ldsw_p(void *ptr)
443 return *(int16_t *)ptr;
446 static inline int ldl_p(void *ptr)
448 return *(uint32_t *)ptr;
451 static inline uint64_t ldq_p(void *ptr)
453 return *(uint64_t *)ptr;
456 static inline void stw_p(void *ptr, int v)
458 *(uint16_t *)ptr = v;
461 static inline void stl_p(void *ptr, int v)
463 *(uint32_t *)ptr = v;
466 static inline void stq_p(void *ptr, uint64_t v)
468 *(uint64_t *)ptr = v;
473 static inline float ldfl_p(void *ptr)
475 return *(float *)ptr;
478 static inline double ldfq_p(void *ptr)
480 return *(double *)ptr;
483 static inline void stfl_p(void *ptr, float v)
488 static inline void stfq_p(void *ptr, double v)
494 /* MMU memory access macros */
496 /* NOTE: we use double casts if pointers and target_ulong have
498 #define ldub_raw(p) ldub_p((uint8_t *)(long)(p))
499 #define ldsb_raw(p) ldsb_p((uint8_t *)(long)(p))
500 #define lduw_raw(p) lduw_p((uint8_t *)(long)(p))
501 #define ldsw_raw(p) ldsw_p((uint8_t *)(long)(p))
502 #define ldl_raw(p) ldl_p((uint8_t *)(long)(p))
503 #define ldq_raw(p) ldq_p((uint8_t *)(long)(p))
504 #define ldfl_raw(p) ldfl_p((uint8_t *)(long)(p))
505 #define ldfq_raw(p) ldfq_p((uint8_t *)(long)(p))
506 #define stb_raw(p, v) stb_p((uint8_t *)(long)(p), v)
507 #define stw_raw(p, v) stw_p((uint8_t *)(long)(p), v)
508 #define stl_raw(p, v) stl_p((uint8_t *)(long)(p), v)
509 #define stq_raw(p, v) stq_p((uint8_t *)(long)(p), v)
510 #define stfl_raw(p, v) stfl_p((uint8_t *)(long)(p), v)
511 #define stfq_raw(p, v) stfq_p((uint8_t *)(long)(p), v)
514 #if defined(CONFIG_USER_ONLY)
516 /* if user mode, no other memory access functions */
517 #define ldub(p) ldub_raw(p)
518 #define ldsb(p) ldsb_raw(p)
519 #define lduw(p) lduw_raw(p)
520 #define ldsw(p) ldsw_raw(p)
521 #define ldl(p) ldl_raw(p)
522 #define ldq(p) ldq_raw(p)
523 #define ldfl(p) ldfl_raw(p)
524 #define ldfq(p) ldfq_raw(p)
525 #define stb(p, v) stb_raw(p, v)
526 #define stw(p, v) stw_raw(p, v)
527 #define stl(p, v) stl_raw(p, v)
528 #define stq(p, v) stq_raw(p, v)
529 #define stfl(p, v) stfl_raw(p, v)
530 #define stfq(p, v) stfq_raw(p, v)
532 #define ldub_code(p) ldub_raw(p)
533 #define ldsb_code(p) ldsb_raw(p)
534 #define lduw_code(p) lduw_raw(p)
535 #define ldsw_code(p) ldsw_raw(p)
536 #define ldl_code(p) ldl_raw(p)
538 #define ldub_kernel(p) ldub_raw(p)
539 #define ldsb_kernel(p) ldsb_raw(p)
540 #define lduw_kernel(p) lduw_raw(p)
541 #define ldsw_kernel(p) ldsw_raw(p)
542 #define ldl_kernel(p) ldl_raw(p)
543 #define ldfl_kernel(p) ldfl_raw(p)
544 #define ldfq_kernel(p) ldfq_raw(p)
545 #define stb_kernel(p, v) stb_raw(p, v)
546 #define stw_kernel(p, v) stw_raw(p, v)
547 #define stl_kernel(p, v) stl_raw(p, v)
548 #define stq_kernel(p, v) stq_raw(p, v)
549 #define stfl_kernel(p, v) stfl_raw(p, v)
550 #define stfq_kernel(p, vt) stfq_raw(p, v)
552 #endif /* defined(CONFIG_USER_ONLY) */
554 /* page related stuff */
556 #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS)
557 #define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1)
558 #define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK)
560 extern unsigned long qemu_real_host_page_size;
561 extern unsigned long qemu_host_page_bits;
562 extern unsigned long qemu_host_page_size;
563 extern unsigned long qemu_host_page_mask;
565 #define HOST_PAGE_ALIGN(addr) (((addr) + qemu_host_page_size - 1) & qemu_host_page_mask)
567 /* same as PROT_xxx */
568 #define PAGE_READ 0x0001
569 #define PAGE_WRITE 0x0002
570 #define PAGE_EXEC 0x0004
571 #define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC)
572 #define PAGE_VALID 0x0008
573 /* original state of the write flag (used when tracking self-modifying
575 #define PAGE_WRITE_ORG 0x0010
577 void page_dump(FILE *f);
578 int page_get_flags(unsigned long address);
579 void page_set_flags(unsigned long start, unsigned long end, int flags);
580 void page_unprotect_range(uint8_t *data, unsigned long data_size);
582 #define SINGLE_CPU_DEFINES
583 #ifdef SINGLE_CPU_DEFINES
585 #if defined(TARGET_I386)
587 #define CPUState CPUX86State
588 #define cpu_init cpu_x86_init
589 #define cpu_exec cpu_x86_exec
590 #define cpu_gen_code cpu_x86_gen_code
591 #define cpu_signal_handler cpu_x86_signal_handler
593 #elif defined(TARGET_ARM)
595 #define CPUState CPUARMState
596 #define cpu_init cpu_arm_init
597 #define cpu_exec cpu_arm_exec
598 #define cpu_gen_code cpu_arm_gen_code
599 #define cpu_signal_handler cpu_arm_signal_handler
601 #elif defined(TARGET_SPARC)
603 #define CPUState CPUSPARCState
604 #define cpu_init cpu_sparc_init
605 #define cpu_exec cpu_sparc_exec
606 #define cpu_gen_code cpu_sparc_gen_code
607 #define cpu_signal_handler cpu_sparc_signal_handler
609 #elif defined(TARGET_PPC)
611 #define CPUState CPUPPCState
612 #define cpu_init cpu_ppc_init
613 #define cpu_exec cpu_ppc_exec
614 #define cpu_gen_code cpu_ppc_gen_code
615 #define cpu_signal_handler cpu_ppc_signal_handler
619 #error unsupported target CPU
623 #endif /* SINGLE_CPU_DEFINES */
625 void cpu_dump_state(CPUState *env, FILE *f,
626 int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
629 void cpu_abort(CPUState *env, const char *fmt, ...);
630 extern CPUState *cpu_single_env;
631 extern int code_copy_enabled;
633 #define CPU_INTERRUPT_EXIT 0x01 /* wants exit from main loop */
634 #define CPU_INTERRUPT_HARD 0x02 /* hardware interrupt pending */
635 #define CPU_INTERRUPT_EXITTB 0x04 /* exit the current TB (use for x86 a20 case) */
636 #define CPU_INTERRUPT_TIMER 0x08 /* internal timer exception pending */
637 void cpu_interrupt(CPUState *s, int mask);
638 void cpu_reset_interrupt(CPUState *env, int mask);
640 int cpu_breakpoint_insert(CPUState *env, target_ulong pc);
641 int cpu_breakpoint_remove(CPUState *env, target_ulong pc);
642 void cpu_single_step(CPUState *env, int enabled);
643 void cpu_reset(CPUState *s);
645 /* Return the physical page corresponding to a virtual one. Use it
646 only for debugging because no protection checks are done. Return -1
648 target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr);
650 #define CPU_LOG_TB_OUT_ASM (1 << 0)
651 #define CPU_LOG_TB_IN_ASM (1 << 1)
652 #define CPU_LOG_TB_OP (1 << 2)
653 #define CPU_LOG_TB_OP_OPT (1 << 3)
654 #define CPU_LOG_INT (1 << 4)
655 #define CPU_LOG_EXEC (1 << 5)
656 #define CPU_LOG_PCALL (1 << 6)
657 #define CPU_LOG_IOPORT (1 << 7)
658 #define CPU_LOG_TB_CPU (1 << 8)
660 /* define log items */
661 typedef struct CPULogItem {
667 extern CPULogItem cpu_log_items[];
669 void cpu_set_log(int log_flags);
670 void cpu_set_log_filename(const char *filename);
671 int cpu_str_to_log_mask(const char *str);
675 /* NOTE: as these functions may be even used when there is an isa
676 brige on non x86 targets, we always defined them */
677 #ifndef NO_CPU_IO_DEFS
678 void cpu_outb(CPUState *env, int addr, int val);
679 void cpu_outw(CPUState *env, int addr, int val);
680 void cpu_outl(CPUState *env, int addr, int val);
681 int cpu_inb(CPUState *env, int addr);
682 int cpu_inw(CPUState *env, int addr);
683 int cpu_inl(CPUState *env, int addr);
688 extern int phys_ram_size;
689 extern int phys_ram_fd;
690 extern uint8_t *phys_ram_base;
691 extern uint8_t *phys_ram_dirty;
693 /* physical memory access */
694 #define IO_MEM_NB_ENTRIES 256
695 #define TLB_INVALID_MASK (1 << 3)
696 #define IO_MEM_SHIFT 4
698 #define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
699 #define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */
700 #define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT)
701 #define IO_MEM_CODE (3 << IO_MEM_SHIFT) /* used internally, never use directly */
702 #define IO_MEM_NOTDIRTY (4 << IO_MEM_SHIFT) /* used internally, never use directly */
704 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
705 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
707 void cpu_register_physical_memory(target_phys_addr_t start_addr,
709 unsigned long phys_offset);
710 int cpu_register_io_memory(int io_index,
711 CPUReadMemoryFunc **mem_read,
712 CPUWriteMemoryFunc **mem_write,
714 CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index);
715 CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index);
717 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
718 int len, int is_write);
719 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
720 uint8_t *buf, int len)
722 cpu_physical_memory_rw(addr, buf, len, 0);
724 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
725 const uint8_t *buf, int len)
727 cpu_physical_memory_rw(addr, (uint8_t *)buf, len, 1);
729 uint32_t ldl_phys(target_phys_addr_t addr);
730 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
731 void stl_phys(target_phys_addr_t addr, uint32_t val);
733 int cpu_memory_rw_debug(CPUState *env, target_ulong addr,
734 uint8_t *buf, int len, int is_write);
736 /* read dirty bit (return 0 or 1) */
737 static inline int cpu_physical_memory_is_dirty(target_ulong addr)
739 return phys_ram_dirty[addr >> TARGET_PAGE_BITS];
742 static inline void cpu_physical_memory_set_dirty(target_ulong addr)
744 phys_ram_dirty[addr >> TARGET_PAGE_BITS] = 1;
747 void cpu_physical_memory_reset_dirty(target_ulong start, target_ulong end);
749 void dump_exec_info(FILE *f,
750 int (*cpu_fprintf)(FILE *f, const char *fmt, ...));
752 #endif /* CPU_ALL_H */