accel/tcg/internal-common.h

   1 /*
   2  * Internal execution defines for qemu (target agnostic)
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #ifndef ACCEL_TCG_INTERNAL_COMMON_H
  10 #define ACCEL_TCG_INTERNAL_COMMON_H
  11
  12 #include "exec/cpu-common.h"
  13 #include "exec/translation-block.h"
  14
  15 extern int64_t max_delay;
  16 extern int64_t max_advance;
  17
  18 extern bool one_insn_per_tb;
  19
  20 /*
  21  * Return true if CS is not running in parallel with other cpus, either
  22  * because there are no other cpus or we are within an exclusive context.
  23  */
  24 static inline bool cpu_in_serial_context(CPUState *cs)
  25 {
  26     return !tcg_cflags_has(cs, CF_PARALLEL) || cpu_in_exclusive_context(cs);
  27 }
  28
  29 /**
  30  * cpu_plugin_mem_cbs_enabled() - are plugin memory callbacks enabled?
  31  * @cs: CPUState pointer
  32  *
  33  * The memory callbacks are installed if a plugin has instrumented an
  34  * instruction for memory. This can be useful to know if you want to
  35  * force a slow path for a series of memory accesses.
  36  */
  37 static inline bool cpu_plugin_mem_cbs_enabled(const CPUState *cpu)
  38 {
  39 #ifdef CONFIG_PLUGIN
  40     return !!cpu->neg.plugin_mem_cbs;
  41 #else
  42     return false;
  43 #endif
  44 }
  45
  46 TranslationBlock *tb_gen_code(CPUState *cpu, vaddr pc,
  47                               uint64_t cs_base, uint32_t flags,
  48                               int cflags);
  49 void page_init(void);
  50 void tb_htable_init(void);
  51 void tb_reset_jump(TranslationBlock *tb, int n);
  52 TranslationBlock *tb_link_page(TranslationBlock *tb);
  53 void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
  54                                uintptr_t host_pc);
  55
  56 bool tcg_exec_realizefn(CPUState *cpu, Error **errp);
  57 void tcg_exec_unrealizefn(CPUState *cpu);
  58
  59 #endif