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 */
cpu_in_serial_context(CPUState * cs)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 */
cpu_plugin_mem_cbs_enabled(const CPUState * cpu)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