exec-all.h@ 11982

Last change on this file since 11982 was 11982, checked in by vboxsync, 16 years ago
All: license header changes for 2.0 (OSE headers, add Sun GPL/LGPL disclaimer)
Property svn:eol-style set to `native`
File size: 20.3 KB

Line
1	/*
2	* internal execution defines for qemu
3	*
4	* Copyright (c) 2003 Fabrice Bellard
5	*
6	* This library is free software; you can redistribute it and/or
7	* modify it under the terms of the GNU Lesser General Public
8	* License as published by the Free Software Foundation; either
9	* version 2 of the License, or (at your option) any later version.
10	*
11	* This library is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14	* Lesser General Public License for more details.
15	*
16	* You should have received a copy of the GNU Lesser General Public
17	* License along with this library; if not, write to the Free Software
18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	*/
20
21	/*
22	* Sun LGPL Disclaimer: For the avoidance of doubt, except that if any license choice
23	* other than GPL or LGPL is available it will apply instead, Sun elects to use only
24	* the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where
25	* a choice of LGPL license versions is made available with the language indicating
26	* that LGPLv2 or any later version may be used, or where a choice of which version
27	* of the LGPL is applied is otherwise unspecified.
28	*/
29
30	/* allow to see translation results - the slowdown should be negligible, so we leave it */
31	#ifndef VBOX
32	#define DEBUG_DISAS
33	#endif
34
35	#ifdef VBOX
36	# include <VBox/tm.h>
37	# include <VBox/pgm.h> /* PGM_DYNAMIC_RAM_ALLOC */
38	# ifndef LOG_GROUP
39	# define LOG_GROUP LOG_GROUP_REM
40	# endif
41	# include <VBox/log.h>
42	# include "REMInternal.h"
43	# include <VBox/vm.h>
44	#endif /* VBOX */
45
46	#ifndef glue
47	#define xglue(x, y) x ## y
48	#define glue(x, y) xglue(x, y)
49	#define stringify(s) tostring(s)
50	#define tostring(s) #s
51	#endif
52
53	#if __GNUC__ < 3
54	#define __builtin_expect(x, n) (x)
55	#endif
56
57	#ifdef __i386__
58	#define REGPARM(n) __attribute((regparm(n)))
59	#else
60	#define REGPARM(n)
61	#endif
62
63	/* is_jmp field values */
64	#define DISAS_NEXT 0 /* next instruction can be analyzed */
65	#define DISAS_JUMP 1 /* only pc was modified dynamically */
66	#define DISAS_UPDATE 2 /* cpu state was modified dynamically */
67	#define DISAS_TB_JUMP 3 /* only pc was modified statically */
68
69	struct TranslationBlock;
70
71	/* XXX: make safe guess about sizes */
72	#define MAX_OP_PER_INSTR 32
73	#define OPC_BUF_SIZE 512
74	#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
75
76	#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * 3)
77
78	extern uint16_t gen_opc_buf[OPC_BUF_SIZE];
79	extern uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
80	extern long gen_labels[OPC_BUF_SIZE];
81	extern int nb_gen_labels;
82	extern target_ulong gen_opc_pc[OPC_BUF_SIZE];
83	extern target_ulong gen_opc_npc[OPC_BUF_SIZE];
84	extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
85	extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
86	extern target_ulong gen_opc_jump_pc[2];
87	extern uint32_t gen_opc_hflags[OPC_BUF_SIZE];
88
89	typedef void (GenOpFunc)(void);
90	typedef void (GenOpFunc1)(long);
91	typedef void (GenOpFunc2)(long, long);
92	typedef void (GenOpFunc3)(long, long, long);
93
94	#if defined(TARGET_I386)
95
96	void optimize_flags_init(void);
97
98	#endif
99
100	extern FILE *logfile;
101	extern int loglevel;
102
103	int gen_intermediate_code(CPUState env, struct TranslationBlock tb);
104	int gen_intermediate_code_pc(CPUState env, struct TranslationBlock tb);
105	void dump_ops(const uint16_t opc_buf, const uint32_t opparam_buf);
106	int cpu_gen_code(CPUState env, struct TranslationBlock tb,
107	int max_code_size, int *gen_code_size_ptr);
108	int cpu_restore_state(struct TranslationBlock *tb,
109	CPUState *env, unsigned long searched_pc,
110	void *puc);
111	int cpu_gen_code_copy(CPUState env, struct TranslationBlock tb,
112	int max_code_size, int *gen_code_size_ptr);
113	int cpu_restore_state_copy(struct TranslationBlock *tb,
114	CPUState *env, unsigned long searched_pc,
115	void *puc);
116	void cpu_resume_from_signal(CPUState env1, void puc);
117	void cpu_exec_init(CPUState *env);
118	int page_unprotect(target_ulong address, unsigned long pc, void *puc);
119	void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
120	int is_cpu_write_access);
121	void tb_invalidate_page_range(target_ulong start, target_ulong end);
122	void tlb_flush_page(CPUState *env, target_ulong addr);
123	void tlb_flush(CPUState *env, int flush_global);
124	int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
125	target_phys_addr_t paddr, int prot,
126	int is_user, int is_softmmu);
127	static inline int tlb_set_page(CPUState *env, target_ulong vaddr,
128	target_phys_addr_t paddr, int prot,
129	int is_user, int is_softmmu)
130	{
131	if (prot & PAGE_READ)
132	prot \|= PAGE_EXEC;
133	return tlb_set_page_exec(env, vaddr, paddr, prot, is_user, is_softmmu);
134	}
135
136	#define CODE_GEN_MAX_SIZE 65536
137	#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */
138
139	#define CODE_GEN_PHYS_HASH_BITS 15
140	#define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS)
141
142	/* maximum total translate dcode allocated */
143
144	/* NOTE: the translated code area cannot be too big because on some
145	archs the range of "fast" function calls is limited. Here is a
146	summary of the ranges:
147
148	i386 : signed 32 bits
149	arm : signed 26 bits
150	ppc : signed 24 bits
151	sparc : signed 32 bits
152	alpha : signed 23 bits
153	*/
154
155	#if defined(__alpha__)
156	#define CODE_GEN_BUFFER_SIZE (2 * 1024 * 1024)
157	#elif defined(__ia64)
158	#define CODE_GEN_BUFFER_SIZE (4 * 1024 * 1024) /* range of addl */
159	#elif defined(__powerpc__)
160	#define CODE_GEN_BUFFER_SIZE (6 * 1024 * 1024)
161	#else
162	#define CODE_GEN_BUFFER_SIZE (16 * 1024 * 1024)
163	#endif
164
165	//#define CODE_GEN_BUFFER_SIZE (128 * 1024)
166
167	/* estimated block size for TB allocation */
168	/* XXX: use a per code average code fragment size and modulate it
169	according to the host CPU */
170	#if defined(CONFIG_SOFTMMU)
171	#define CODE_GEN_AVG_BLOCK_SIZE 128
172	#else
173	#define CODE_GEN_AVG_BLOCK_SIZE 64
174	#endif
175
176	#define CODE_GEN_MAX_BLOCKS (CODE_GEN_BUFFER_SIZE / CODE_GEN_AVG_BLOCK_SIZE)
177
178	#if defined(__powerpc__)
179	#define USE_DIRECT_JUMP
180	#endif
181	#if defined(__i386__) && !defined(_WIN32)
182	#define USE_DIRECT_JUMP
183	#endif
184	#ifdef VBOX /* bird: not safe in next step because of threading & cpu_interrupt. */
185	#undef USE_DIRECT_JUMP
186	#endif /* VBOX */
187
188	typedef struct TranslationBlock {
189	target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */
190	target_ulong cs_base; /* CS base for this block */
191	unsigned int flags; /* flags defining in which context the code was generated */
192	uint16_t size; /* size of target code for this block (1 <=
193	size <= TARGET_PAGE_SIZE) */
194	uint16_t cflags; /* compile flags */
195	#define CF_CODE_COPY 0x0001 /* block was generated in code copy mode */
196	#define CF_TB_FP_USED 0x0002 /* fp ops are used in the TB */
197	#define CF_FP_USED 0x0004 /* fp ops are used in the TB or in a chained TB */
198	#define CF_SINGLE_INSN 0x0008 /* compile only a single instruction */
199	#ifdef VBOX
200	#define CF_RAW_MODE 0x0010 /* block was generated in raw mode */
201	#endif
202
203	uint8_t tc_ptr; / pointer to the translated code */
204	/* next matching tb for physical address. */
205	struct TranslationBlock *phys_hash_next;
206	/* first and second physical page containing code. The lower bit
207	of the pointer tells the index in page_next[] */
208	struct TranslationBlock *page_next[2];
209	target_ulong page_addr[2];
210
211	/* the following data are used to directly call another TB from
212	the code of this one. */
213	uint16_t tb_next_offset[2]; /* offset of original jump target */
214	#ifdef USE_DIRECT_JUMP
215	uint16_t tb_jmp_offset[4]; /* offset of jump instruction */
216	#else
217	# if defined(VBOX) && defined(RT_OS_DARWIN) && defined(RT_ARCH_AMD64)
218	# error "First 4GB aren't reachable. jmp dword [tb_next] wont work."
219	# endif
220	uint32_t tb_next[2]; /* address of jump generated code */
221	#endif
222	/* list of TBs jumping to this one. This is a circular list using
223	the two least significant bits of the pointers to tell what is
224	the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
225	jmp_first */
226	struct TranslationBlock *jmp_next[2];
227	struct TranslationBlock *jmp_first;
228	} TranslationBlock;
229
230	static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc)
231	{
232	target_ulong tmp;
233	tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
234	return (tmp >> TB_JMP_PAGE_BITS) & TB_JMP_PAGE_MASK;
235	}
236
237	static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
238	{
239	target_ulong tmp;
240	tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
241	return (((tmp >> TB_JMP_PAGE_BITS) & TB_JMP_PAGE_MASK) \|
242	(tmp & TB_JMP_ADDR_MASK));
243	}
244
245	static inline unsigned int tb_phys_hash_func(unsigned long pc)
246	{
247	return pc & (CODE_GEN_PHYS_HASH_SIZE - 1);
248	}
249
250	TranslationBlock *tb_alloc(target_ulong pc);
251	void tb_flush(CPUState *env);
252	void tb_link_phys(TranslationBlock *tb,
253	target_ulong phys_pc, target_ulong phys_page2);
254
255	extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE];
256
257	extern uint8_t code_gen_buffer[CODE_GEN_BUFFER_SIZE];
258	extern uint8_t *code_gen_ptr;
259
260	#if defined(USE_DIRECT_JUMP)
261
262	#if defined(__powerpc__)
263	static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
264	{
265	uint32_t val, *ptr;
266
267	/* patch the branch destination */
268	ptr = (uint32_t *)jmp_addr;
269	val = *ptr;
270	val = (val & ~0x03fffffc) \| ((addr - jmp_addr) & 0x03fffffc);
271	*ptr = val;
272	/* flush icache */
273	asm volatile ("dcbst 0,%0" : : "r"(ptr) : "memory");
274	asm volatile ("sync" : : : "memory");
275	asm volatile ("icbi 0,%0" : : "r"(ptr) : "memory");
276	asm volatile ("sync" : : : "memory");
277	asm volatile ("isync" : : : "memory");
278	}
279	#elif defined(__i386__)
280	static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
281	{
282	/* patch the branch destination */
283	(uint32_t )jmp_addr = addr - (jmp_addr + 4);
284	/* no need to flush icache explicitely */
285	}
286	#endif
287
288	static inline void tb_set_jmp_target(TranslationBlock *tb,
289	int n, unsigned long addr)
290	{
291	unsigned long offset;
292
293	offset = tb->tb_jmp_offset[n];
294	tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
295	offset = tb->tb_jmp_offset[n + 2];
296	if (offset != 0xffff)
297	tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
298	}
299
300	#else
301
302	/* set the jump target */
303	static inline void tb_set_jmp_target(TranslationBlock *tb,
304	int n, unsigned long addr)
305	{
306	tb->tb_next[n] = addr;
307	}
308
309	#endif
310
311	static inline void tb_add_jump(TranslationBlock *tb, int n,
312	TranslationBlock *tb_next)
313	{
314	/* NOTE: this test is only needed for thread safety */
315	if (!tb->jmp_next[n]) {
316	/* patch the native jump address */
317	tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr);
318
319	/* add in TB jmp circular list */
320	tb->jmp_next[n] = tb_next->jmp_first;
321	tb_next->jmp_first = (TranslationBlock *)((long)(tb) \| (n));
322	}
323	}
324
325	TranslationBlock *tb_find_pc(unsigned long pc_ptr);
326
327	#ifndef offsetof
328	#define offsetof(type, field) ((size_t) &((type *)0)->field)
329	#endif
330
331	#if defined(_WIN32)
332	#define ASM_DATA_SECTION ".section \".data\"\n"
333	#define ASM_PREVIOUS_SECTION ".section .text\n"
334	#elif defined(__APPLE__)
335	#define ASM_DATA_SECTION ".data\n"
336	#define ASM_PREVIOUS_SECTION ".text\n"
337	#else
338	#define ASM_DATA_SECTION ".section \".data\"\n"
339	#define ASM_PREVIOUS_SECTION ".previous\n"
340	#endif
341
342	#define ASM_OP_LABEL_NAME(n, opname) \
343	ASM_NAME(__op_label) #n "." ASM_NAME(opname)
344
345	#if defined(__powerpc__)
346
347	/* we patch the jump instruction directly */
348	#define GOTO_TB(opname, tbparam, n)\
349	do {\
350	asm volatile (ASM_DATA_SECTION\
351	ASM_OP_LABEL_NAME(n, opname) ":\n"\
352	".long 1f\n"\
353	ASM_PREVIOUS_SECTION \
354	"b " ASM_NAME(__op_jmp) #n "\n"\
355	"1:\n");\
356	} while (0)
357
358	#elif defined(__i386__) && defined(USE_DIRECT_JUMP)
359
360	/* we patch the jump instruction directly */
361	#define GOTO_TB(opname, tbparam, n)\
362	do {\
363	asm volatile (".section .data\n"\
364	ASM_OP_LABEL_NAME(n, opname) ":\n"\
365	".long 1f\n"\
366	ASM_PREVIOUS_SECTION \
367	"jmp " ASM_NAME(__op_jmp) #n "\n"\
368	"1:\n");\
369	} while (0)
370
371	#else
372
373	/* jump to next block operations (more portable code, does not need
374	cache flushing, but slower because of indirect jump) */
375	# ifdef VBOX /* bird: GCC4 (and Ming 3.4.x?) will remove the two unused static
376	variables. I've added a dummy __asm__ statement which reference
377	the two variables to prevent this. */
378	# if __GNUC__ >= 4
379	# define GOTO_TB(opname, tbparam, n)\
380	do {\
381	static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
382	static void __attribute__((unused)) *__op_label ## n \
383	__asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
384	__asm__ ("" : : "m" (__op_label ## n), "m" (dummy ## n));\
385	goto (void )(uintptr_t)(((TranslationBlock *)tbparam)->tb_next[n]);\
386	label ## n: ;\
387	dummy_label ## n: ;\
388	} while (0)
389	# else
390	# define GOTO_TB(opname, tbparam, n)\
391	do {\
392	static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
393	static void __attribute__((unused)) *__op_label ## n \
394	__asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
395	goto (void )(uintptr_t)(((TranslationBlock *)tbparam)->tb_next[n]);\
396	label ## n: ;\
397	dummy_label ## n: ;\
398	} while (0)
399	# endif
400	# else /* !VBOX */
401	#define GOTO_TB(opname, tbparam, n)\
402	do {\
403	static void __attribute__((unused)) *dummy ## n = &&dummy_label ## n;\
404	static void __attribute__((unused)) *__op_label ## n \
405	__asm__(ASM_OP_LABEL_NAME(n, opname)) = &&label ## n;\
406	goto (void )(((TranslationBlock *)tbparam)->tb_next[n]);\
407	label ## n: ;\
408	dummy_label ## n: ;\
409	} while (0)
410	# endif /* !VBOX */
411
412	#endif
413
414	extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
415	extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
416	extern void *io_mem_opaque[IO_MEM_NB_ENTRIES];
417
418	#ifdef __powerpc__
419	static inline int testandset (int *p)
420	{
421	int ret;
422	__asm__ __volatile__ (
423	"0: lwarx %0,0,%1\n"
424	" xor. %0,%3,%0\n"
425	" bne 1f\n"
426	" stwcx. %2,0,%1\n"
427	" bne- 0b\n"
428	"1: "
429	: "=&r" (ret)
430	: "r" (p), "r" (1), "r" (0)
431	: "cr0", "memory");
432	return ret;
433	}
434	#endif
435
436	#ifdef __i386__
437	static inline int testandset (int *p)
438	{
439	long int readval = 0;
440
441	__asm__ __volatile__ ("lock; cmpxchgl %2, %0"
442	: "+m" (*p), "+a" (readval)
443	: "r" (1)
444	: "cc");
445	return readval;
446	}
447	#endif
448
449	#ifdef __x86_64__
450	static inline int testandset (int *p)
451	{
452	long int readval = 0;
453
454	__asm__ __volatile__ ("lock; cmpxchgl %2, %0"
455	: "+m" (*p), "+a" (readval)
456	: "r" (1)
457	: "cc");
458	return readval;
459	}
460	#endif
461
462	#ifdef __s390__
463	static inline int testandset (int *p)
464	{
465	int ret;
466
467	__asm__ __volatile__ ("0: cs %0,%1,0(%2)\n"
468	" jl 0b"
469	: "=&d" (ret)
470	: "r" (1), "a" (p), "0" (*p)
471	: "cc", "memory" );
472	return ret;
473	}
474	#endif
475
476	#ifdef __alpha__
477	static inline int testandset (int *p)
478	{
479	int ret;
480	unsigned long one;
481
482	__asm__ __volatile__ ("0: mov 1,%2\n"
483	" ldl_l %0,%1\n"
484	" stl_c %2,%1\n"
485	" beq %2,1f\n"
486	".subsection 2\n"
487	"1: br 0b\n"
488	".previous"
489	: "=r" (ret), "=m" (*p), "=r" (one)
490	: "m" (*p));
491	return ret;
492	}
493	#endif
494
495	#ifdef __sparc__
496	static inline int testandset (int *p)
497	{
498	int ret;
499
500	__asm__ __volatile__("ldstub [%1], %0"
501	: "=r" (ret)
502	: "r" (p)
503	: "memory");
504
505	return (ret ? 1 : 0);
506	}
507	#endif
508
509	#ifdef __arm__
510	static inline int testandset (int *spinlock)
511	{
512	register unsigned int ret;
513	__asm__ __volatile__("swp %0, %1, [%2]"
514	: "=r"(ret)
515	: "0"(1), "r"(spinlock));
516
517	return ret;
518	}
519	#endif
520
521	#ifdef __mc68000
522	static inline int testandset (int *p)
523	{
524	char ret;
525	__asm__ __volatile__("tas %1; sne %0"
526	: "=r" (ret)
527	: "m" (p)
528	: "cc","memory");
529	return ret;
530	}
531	#endif
532
533	#ifdef __ia64
534	#include <ia64intrin.h>
535
536	static inline int testandset (int *p)
537	{
538	return __sync_lock_test_and_set (p, 1);
539	}
540	#endif
541
542	typedef int spinlock_t;
543
544	#define SPIN_LOCK_UNLOCKED 0
545
546	#if defined(CONFIG_USER_ONLY)
547	static inline void spin_lock(spinlock_t *lock)
548	{
549	while (testandset(lock));
550	}
551
552	static inline void spin_unlock(spinlock_t *lock)
553	{
554	*lock = 0;
555	}
556
557	static inline int spin_trylock(spinlock_t *lock)
558	{
559	return !testandset(lock);
560	}
561	#else
562	static inline void spin_lock(spinlock_t *lock)
563	{
564	}
565
566	static inline void spin_unlock(spinlock_t *lock)
567	{
568	}
569
570	static inline int spin_trylock(spinlock_t *lock)
571	{
572	return 1;
573	}
574	#endif
575
576	extern spinlock_t tb_lock;
577
578	extern int tb_invalidated_flag;
579
580	#if !defined(CONFIG_USER_ONLY)
581
582	void tlb_fill(target_ulong addr, int is_write, int is_user,
583	void *retaddr);
584
585	#define ACCESS_TYPE 3
586	#define MEMSUFFIX _code
587	#define env cpu_single_env
588
589	#define DATA_SIZE 1
590	#include "softmmu_header.h"
591
592	#define DATA_SIZE 2
593	#include "softmmu_header.h"
594
595	#define DATA_SIZE 4
596	#include "softmmu_header.h"
597
598	#define DATA_SIZE 8
599	#include "softmmu_header.h"
600
601	#undef ACCESS_TYPE
602	#undef MEMSUFFIX
603	#undef env
604
605	#endif
606
607	#if defined(CONFIG_USER_ONLY)
608	static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
609	{
610	return addr;
611	}
612	#else
613	# ifdef VBOX
614	target_ulong remR3PhysGetPhysicalAddressCode(CPUState env, target_ulong addr, CPUTLBEntry pTLBEntry);
615	# if !defined(REM_PHYS_ADDR_IN_TLB)
616	target_ulong remR3HCVirt2GCPhys(void env, void addr);
617	# endif
618	# endif
619	/* NOTE: this function can trigger an exception */
620	/* NOTE2: the returned address is not exactly the physical address: it
621	is the offset relative to phys_ram_base */
622	static inline target_ulong get_phys_addr_code(CPUState *env, target_ulong addr)
623	{
624	int is_user, index, pd;
625
626	index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
627	#if defined(TARGET_I386)
628	is_user = ((env->hflags & HF_CPL_MASK) == 3);
629	#elif defined (TARGET_PPC)
630	is_user = msr_pr;
631	#elif defined (TARGET_MIPS)
632	is_user = ((env->hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM);
633	#elif defined (TARGET_SPARC)
634	is_user = (env->psrs == 0);
635	#elif defined (TARGET_ARM)
636	is_user = ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR);
637	#elif defined (TARGET_SH4)
638	is_user = ((env->sr & SR_MD) == 0);
639	#else
640	#error unimplemented CPU
641	#endif
642	if (__builtin_expect(env->tlb_table[is_user][index].addr_code !=
643	(addr & TARGET_PAGE_MASK), 0)) {
644	ldub_code(addr);
645	}
646	pd = env->tlb_table[is_user][index].addr_code & ~TARGET_PAGE_MASK;
647	if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
648	# ifdef VBOX
649	/* deal with non-MMIO access handlers. */
650	return remR3PhysGetPhysicalAddressCode(env, addr, &env->tlb_table[is_user][index]);
651	# else
652	cpu_abort(env, "Trying to execute code outside RAM or ROM at 0x%08lx\n", addr);
653	# endif
654	}
655	# if defined(VBOX) && defined(REM_PHYS_ADDR_IN_TLB)
656	return addr + env->tlb_table[is_user][index].addend;
657	# elif defined(VBOX)
658	return remR3HCVirt2GCPhys(env, (void *)(addr + env->tlb_table[is_user][index].addend));
659	# else
660	return addr + env->tlb_table[is_user][index].addend - (unsigned long)phys_ram_base;
661	# endif
662	}
663	#endif
664
665
666	#ifdef USE_KQEMU
667	#define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG \| CODE_DIRTY_FLAG))
668
669	int kqemu_init(CPUState *env);
670	int kqemu_cpu_exec(CPUState *env);
671	void kqemu_flush_page(CPUState *env, target_ulong addr);
672	void kqemu_flush(CPUState *env, int global);
673	void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr);
674	void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr);
675	void kqemu_cpu_interrupt(CPUState *env);
676	void kqemu_record_dump(void);
677
678	static inline int kqemu_is_ok(CPUState *env)
679	{
680	return(env->kqemu_enabled &&
681	(env->cr[0] & CR0_PE_MASK) &&
682	!(env->hflags & HF_INHIBIT_IRQ_MASK) &&
683	(env->eflags & IF_MASK) &&
684	!(env->eflags & VM_MASK) &&
685	(env->kqemu_enabled == 2 \|\|
686	((env->hflags & HF_CPL_MASK) == 3 &&
687	(env->eflags & IOPL_MASK) != IOPL_MASK)));
688	}
689
690	#endif

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/recompiler/exec-all.h@ 11982

Download in other formats: