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 60