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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:35 -0800
commitf721e3ac031f892af46f255a47d7f54a91317b30 (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /exec-all.h
parentbae1bc39312d5019bd9a5b8d840a529213a69a17 (diff)
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auto import from //depot/cupcake/@135843
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-/*
- * internal execution defines for qemu
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/* allow to see translation results - the slowdown should be negligible, so we leave it */
-#define DEBUG_DISAS
-
-/* is_jmp field values */
-#define DISAS_NEXT 0 /* next instruction can be analyzed */
-#define DISAS_JUMP 1 /* only pc was modified dynamically */
-#define DISAS_UPDATE 2 /* cpu state was modified dynamically */
-#define DISAS_TB_JUMP 3 /* only pc was modified statically */
-
-typedef struct TranslationBlock TranslationBlock;
-
-/* XXX: make safe guess about sizes */
-#define MAX_OP_PER_INSTR 64
-/* A Call op needs up to 6 + 2N parameters (N = number of arguments). */
-#define MAX_OPC_PARAM 10
-#define OPC_BUF_SIZE 512
-#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
-
-/* Maximum size a TCG op can expand to. This is complicated because a
- single op may require several host instructions and regirster reloads.
- For now take a wild guess at 128 bytes, which should allow at least
- a couple of fixup instructions per argument. */
-#define TCG_MAX_OP_SIZE 128
-
-#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM)
-
-extern target_ulong gen_opc_pc[OPC_BUF_SIZE];
-extern target_ulong gen_opc_npc[OPC_BUF_SIZE];
-extern uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
-extern uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
-extern uint16_t gen_opc_icount[OPC_BUF_SIZE];
-extern target_ulong gen_opc_jump_pc[2];
-extern uint32_t gen_opc_hflags[OPC_BUF_SIZE];
-
-typedef void (GenOpFunc)(void);
-typedef void (GenOpFunc1)(long);
-typedef void (GenOpFunc2)(long, long);
-typedef void (GenOpFunc3)(long, long, long);
-
-#include "qemu-log.h"
-
-void gen_intermediate_code(CPUState *env, struct TranslationBlock *tb);
-void gen_intermediate_code_pc(CPUState *env, struct TranslationBlock *tb);
-void gen_pc_load(CPUState *env, struct TranslationBlock *tb,
- unsigned long searched_pc, int pc_pos, void *puc);
-
-unsigned long code_gen_max_block_size(void);
-void cpu_gen_init(void);
-int cpu_gen_code(CPUState *env, struct TranslationBlock *tb,
- int *gen_code_size_ptr);
-int cpu_restore_state(struct TranslationBlock *tb,
- CPUState *env, unsigned long searched_pc,
- void *puc);
-int cpu_restore_state_copy(struct TranslationBlock *tb,
- CPUState *env, unsigned long searched_pc,
- void *puc);
-void cpu_resume_from_signal(CPUState *env1, void *puc);
-void cpu_io_recompile(CPUState *env, void *retaddr);
-TranslationBlock *tb_gen_code(CPUState *env,
- target_ulong pc, target_ulong cs_base, int flags,
- int cflags);
-void cpu_exec_init(CPUState *env);
-int page_unprotect(target_ulong address, unsigned long pc, void *puc);
-void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end,
- int is_cpu_write_access);
-void tb_invalidate_page_range(target_ulong start, target_ulong end);
-void tlb_flush_page(CPUState *env, target_ulong addr);
-void tlb_flush(CPUState *env, int flush_global);
-int tlb_set_page_exec(CPUState *env, target_ulong vaddr,
- target_phys_addr_t paddr, int prot,
- int mmu_idx, int is_softmmu);
-static inline int tlb_set_page(CPUState *env1, target_ulong vaddr,
- target_phys_addr_t paddr, int prot,
- int mmu_idx, int is_softmmu)
-{
- if (prot & PAGE_READ)
- prot |= PAGE_EXEC;
- return tlb_set_page_exec(env1, vaddr, paddr, prot, mmu_idx, is_softmmu);
-}
-
-#define CODE_GEN_ALIGN 16 /* must be >= of the size of a icache line */
-
-#define CODE_GEN_PHYS_HASH_BITS 15
-#define CODE_GEN_PHYS_HASH_SIZE (1 << CODE_GEN_PHYS_HASH_BITS)
-
-#define MIN_CODE_GEN_BUFFER_SIZE (1024 * 1024)
-
-/* estimated block size for TB allocation */
-/* XXX: use a per code average code fragment size and modulate it
- according to the host CPU */
-#if defined(CONFIG_SOFTMMU)
-#define CODE_GEN_AVG_BLOCK_SIZE 128
-#else
-#define CODE_GEN_AVG_BLOCK_SIZE 64
-#endif
-
-#if defined(__powerpc__) || defined(__x86_64__) || defined(__arm__)
-#define USE_DIRECT_JUMP
-#endif
-#if defined(__i386__) && !defined(_WIN32)
-#define USE_DIRECT_JUMP
-#endif
-
-struct TranslationBlock {
- target_ulong pc; /* simulated PC corresponding to this block (EIP + CS base) */
- target_ulong cs_base; /* CS base for this block */
- uint64_t flags; /* flags defining in which context the code was generated */
- uint16_t size; /* size of target code for this block (1 <=
- size <= TARGET_PAGE_SIZE) */
- uint16_t cflags; /* compile flags */
-#define CF_COUNT_MASK 0x7fff
-#define CF_LAST_IO 0x8000 /* Last insn may be an IO access. */
-
- uint8_t *tc_ptr; /* pointer to the translated code */
- /* next matching tb for physical address. */
- struct TranslationBlock *phys_hash_next;
- /* first and second physical page containing code. The lower bit
- of the pointer tells the index in page_next[] */
- struct TranslationBlock *page_next[2];
- target_ulong page_addr[2];
-
- /* the following data are used to directly call another TB from
- the code of this one. */
- uint16_t tb_next_offset[2]; /* offset of original jump target */
-#ifdef USE_DIRECT_JUMP
- uint16_t tb_jmp_offset[4]; /* offset of jump instruction */
-#else
- unsigned long tb_next[2]; /* address of jump generated code */
-#endif
- /* list of TBs jumping to this one. This is a circular list using
- the two least significant bits of the pointers to tell what is
- the next pointer: 0 = jmp_next[0], 1 = jmp_next[1], 2 =
- jmp_first */
- struct TranslationBlock *jmp_next[2];
- struct TranslationBlock *jmp_first;
-
-#ifdef CONFIG_TRACE
- struct BBRec *bb_rec;
- uint64_t prev_time;
-#endif
- uint32_t icount;
-};
-
-static inline unsigned int tb_jmp_cache_hash_page(target_ulong pc)
-{
- target_ulong tmp;
- tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
- return (tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK;
-}
-
-static inline unsigned int tb_jmp_cache_hash_func(target_ulong pc)
-{
- target_ulong tmp;
- tmp = pc ^ (pc >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS));
- return (((tmp >> (TARGET_PAGE_BITS - TB_JMP_PAGE_BITS)) & TB_JMP_PAGE_MASK)
- | (tmp & TB_JMP_ADDR_MASK));
-}
-
-static inline unsigned int tb_phys_hash_func(unsigned long pc)
-{
- return pc & (CODE_GEN_PHYS_HASH_SIZE - 1);
-}
-
-TranslationBlock *tb_alloc(target_ulong pc);
-void tb_free(TranslationBlock *tb);
-void tb_flush(CPUState *env);
-void tb_link_phys(TranslationBlock *tb,
- target_ulong phys_pc, target_ulong phys_page2);
-void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr);
-
-extern TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE];
-extern uint8_t *code_gen_ptr;
-extern int code_gen_max_blocks;
-
-#if defined(USE_DIRECT_JUMP)
-
-#if defined(__powerpc__)
-extern void ppc_tb_set_jmp_target(unsigned long jmp_addr, unsigned long addr);
-#define tb_set_jmp_target1 ppc_tb_set_jmp_target
-#elif defined(__i386__) || defined(__x86_64__)
-static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
-{
- /* patch the branch destination */
- *(uint32_t *)jmp_addr = addr - (jmp_addr + 4);
- /* no need to flush icache explicitly */
-}
-#elif defined(__arm__)
-static inline void tb_set_jmp_target1(unsigned long jmp_addr, unsigned long addr)
-{
- register unsigned long _beg __asm ("a1");
- register unsigned long _end __asm ("a2");
- register unsigned long _flg __asm ("a3");
-
- /* we could use a ldr pc, [pc, #-4] kind of branch and avoid the flush */
- *(uint32_t *)jmp_addr |= ((addr - (jmp_addr + 8)) >> 2) & 0xffffff;
-
- /* flush icache */
- _beg = jmp_addr;
- _end = jmp_addr + 4;
- _flg = 0;
- __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
-}
-#endif
-
-static inline void tb_set_jmp_target(TranslationBlock *tb,
- int n, unsigned long addr)
-{
- unsigned long offset;
-
- offset = tb->tb_jmp_offset[n];
- tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
- offset = tb->tb_jmp_offset[n + 2];
- if (offset != 0xffff)
- tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
-}
-
-#else
-
-/* set the jump target */
-static inline void tb_set_jmp_target(TranslationBlock *tb,
- int n, unsigned long addr)
-{
- tb->tb_next[n] = addr;
-}
-
-#endif
-
-static inline void tb_add_jump(TranslationBlock *tb, int n,
- TranslationBlock *tb_next)
-{
- /* NOTE: this test is only needed for thread safety */
- if (!tb->jmp_next[n]) {
- /* patch the native jump address */
- tb_set_jmp_target(tb, n, (unsigned long)tb_next->tc_ptr);
-
- /* add in TB jmp circular list */
- tb->jmp_next[n] = tb_next->jmp_first;
- tb_next->jmp_first = (TranslationBlock *)((long)(tb) | (n));
- }
-}
-
-TranslationBlock *tb_find_pc(unsigned long pc_ptr);
-
-#if defined(_WIN32)
-#define ASM_DATA_SECTION ".section \".data\"\n"
-#define ASM_PREVIOUS_SECTION ".section .text\n"
-#elif defined(__APPLE__)
-#define ASM_DATA_SECTION ".data\n"
-#define ASM_PREVIOUS_SECTION ".text\n"
-#else
-#define ASM_DATA_SECTION ".section \".data\"\n"
-#define ASM_PREVIOUS_SECTION ".previous\n"
-#endif
-
-#define ASM_OP_LABEL_NAME(n, opname) \
- ASM_NAME(__op_label) #n "." ASM_NAME(opname)
-
-extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
-extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
-extern void *io_mem_opaque[IO_MEM_NB_ENTRIES];
-
-#include "qemu-lock.h"
-
-extern spinlock_t tb_lock;
-
-extern int tb_invalidated_flag;
-
-#if !defined(CONFIG_USER_ONLY)
-
-void tlb_fill(target_ulong addr, int is_write, int mmu_idx,
- void *retaddr);
-
-#include "softmmu_defs.h"
-
-#define ACCESS_TYPE (NB_MMU_MODES + 1)
-#define MEMSUFFIX _code
-#define env cpu_single_env
-
-#define DATA_SIZE 1
-#include "softmmu_header.h"
-
-#define DATA_SIZE 2
-#include "softmmu_header.h"
-
-#define DATA_SIZE 4
-#include "softmmu_header.h"
-
-#define DATA_SIZE 8
-#include "softmmu_header.h"
-
-#undef ACCESS_TYPE
-#undef MEMSUFFIX
-#undef env
-
-#endif
-
-#if defined(CONFIG_USER_ONLY)
-static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr)
-{
- return addr;
-}
-#else
-/* NOTE: this function can trigger an exception */
-/* NOTE2: the returned address is not exactly the physical address: it
- is the offset relative to phys_ram_base */
-static inline target_ulong get_phys_addr_code(CPUState *env1, target_ulong addr)
-{
- int mmu_idx, page_index, pd;
-
- page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1);
- mmu_idx = cpu_mmu_index(env1);
- if (unlikely(env1->tlb_table[mmu_idx][page_index].addr_code !=
- (addr & TARGET_PAGE_MASK))) {
- ldub_code(addr);
- }
- pd = env1->tlb_table[mmu_idx][page_index].addr_code & ~TARGET_PAGE_MASK;
- if (pd > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) {
-#if defined(TARGET_SPARC) || defined(TARGET_MIPS)
- do_unassigned_access(addr, 0, 1, 0);
-#else
- cpu_abort(env1, "Trying to execute code outside RAM or ROM at 0x" TARGET_FMT_lx "\n", addr);
-#endif
- }
- return addr + env1->tlb_table[mmu_idx][page_index].addend - (unsigned long)phys_ram_base;
-}
-
-/* Deterministic execution requires that IO only be performed on the last
- instruction of a TB so that interrupts take effect immediately. */
-static inline int can_do_io(CPUState *env)
-{
- if (!use_icount)
- return 1;
-
- /* If not executing code then assume we are ok. */
- if (!env->current_tb)
- return 1;
-
- return env->can_do_io != 0;
-}
-#endif
-
-#ifdef USE_KQEMU
-#define KQEMU_MODIFY_PAGE_MASK (0xff & ~(VGA_DIRTY_FLAG | CODE_DIRTY_FLAG))
-
-#define MSR_QPI_COMMBASE 0xfabe0010
-
-int kqemu_init(CPUState *env);
-int kqemu_cpu_exec(CPUState *env);
-void kqemu_flush_page(CPUState *env, target_ulong addr);
-void kqemu_flush(CPUState *env, int global);
-void kqemu_set_notdirty(CPUState *env, ram_addr_t ram_addr);
-void kqemu_modify_page(CPUState *env, ram_addr_t ram_addr);
-void kqemu_set_phys_mem(uint64_t start_addr, ram_addr_t size,
- ram_addr_t phys_offset);
-void kqemu_cpu_interrupt(CPUState *env);
-void kqemu_record_dump(void);
-
-extern uint32_t kqemu_comm_base;
-
-static inline int kqemu_is_ok(CPUState *env)
-{
- return(env->kqemu_enabled &&
- (env->cr[0] & CR0_PE_MASK) &&
- !(env->hflags & HF_INHIBIT_IRQ_MASK) &&
- (env->eflags & IF_MASK) &&
- !(env->eflags & VM_MASK) &&
- (env->kqemu_enabled == 2 ||
- ((env->hflags & HF_CPL_MASK) == 3 &&
- (env->eflags & IOPL_MASK) != IOPL_MASK)));
-}
-
-#endif