accel/tcg/internal.h

   1 /*
   2  * Internal execution defines for qemu
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #ifndef ACCEL_TCG_INTERNAL_H
  10 #define ACCEL_TCG_INTERNAL_H
  11
  12 #include "exec/exec-all.h"
  13
  14 /*
  15  * Access to the various translations structures need to be serialised
  16  * via locks for consistency.  In user-mode emulation access to the
  17  * memory related structures are protected with mmap_lock.
  18  * In !user-mode we use per-page locks.
  19  */
  20 #ifdef CONFIG_SOFTMMU
  21 #define assert_memory_lock()
  22 #else
  23 #define assert_memory_lock() tcg_debug_assert(have_mmap_lock())
  24 #endif
  25
  26 #if defined(CONFIG_SOFTMMU) && defined(CONFIG_DEBUG_TCG)
  27 void assert_no_pages_locked(void);
  28 #else
  29 static inline void assert_no_pages_locked(void) { }
  30 #endif
  31
  32 #ifdef CONFIG_USER_ONLY
  33 static inline void page_table_config_init(void) { }
  34 #else
  35 void page_table_config_init(void);
  36 #endif
  37
  38 #ifdef CONFIG_SOFTMMU
  39 void tb_invalidate_phys_range_fast(ram_addr_t ram_addr,
  40                                    unsigned size,
  41                                    uintptr_t retaddr);
  42 G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
  43 #endif /* CONFIG_SOFTMMU */
  44
  45 TranslationBlock *tb_gen_code(CPUState *cpu, target_ulong pc,
  46                               target_ulong cs_base, uint32_t flags,
  47                               int cflags);
  48 void page_init(void);
  49 void tb_htable_init(void);
  50 void tb_reset_jump(TranslationBlock *tb, int n);
  51 TranslationBlock *tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc,
  52                                tb_page_addr_t phys_page2);
  53 bool tb_invalidate_phys_page_unwind(tb_page_addr_t addr, uintptr_t pc);
  54 void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
  55                                uintptr_t host_pc);
  56
  57 /* Return the current PC from CPU, which may be cached in TB. */
  58 static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb)
  59 {
  60     if (tb_cflags(tb) & CF_PCREL) {
  61         return cpu->cc->get_pc(cpu);
  62     } else {
  63         return tb->pc;
  64     }
  65 }
  66
  67 extern int64_t max_delay;
  68 extern int64_t max_advance;
  69
  70 extern bool one_insn_per_tb;
  71
  72 #endif /* ACCEL_TCG_INTERNAL_H */