include/sysemu/cpus.h

   1 #ifndef QEMU_CPUS_H
   2 #define QEMU_CPUS_H
   3
   4 #include "qemu/timer.h"
   5
   6 /* cpus.c */
   7
   8 /* CPU execution threads */
   9
  10 typedef struct CpusAccel {
  11     void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY */
  12     void (*kick_vcpu_thread)(CPUState *cpu);
  13
  14     void (*synchronize_post_reset)(CPUState *cpu);
  15     void (*synchronize_post_init)(CPUState *cpu);
  16     void (*synchronize_state)(CPUState *cpu);
  17     void (*synchronize_pre_loadvm)(CPUState *cpu);
  18
  19     void (*handle_interrupt)(CPUState *cpu, int mask);
  20
  21     int64_t (*get_virtual_clock)(void);
  22     int64_t (*get_elapsed_ticks)(void);
  23 } CpusAccel;
  24
  25 /* register accel-specific cpus interface implementation */
  26 void cpus_register_accel(const CpusAccel *i);
  27
  28 /* Create a dummy vcpu for CpusAccel->create_vcpu_thread */
  29 void dummy_start_vcpu_thread(CPUState *);
  30
  31 /* interface available for cpus accelerator threads */
  32
  33 /* For temporary buffers for forming a name */
  34 #define VCPU_THREAD_NAME_SIZE 16
  35
  36 void cpus_kick_thread(CPUState *cpu);
  37 bool cpu_work_list_empty(CPUState *cpu);
  38 bool cpu_thread_is_idle(CPUState *cpu);
  39 bool all_cpu_threads_idle(void);
  40 bool cpu_can_run(CPUState *cpu);
  41 void qemu_wait_io_event_common(CPUState *cpu);
  42 void qemu_wait_io_event(CPUState *cpu);
  43 void cpu_thread_signal_created(CPUState *cpu);
  44 void cpu_thread_signal_destroyed(CPUState *cpu);
  45 void cpu_handle_guest_debug(CPUState *cpu);
  46
  47 /* end interface for cpus accelerator threads */
  48
  49 bool qemu_in_vcpu_thread(void);
  50 void qemu_init_cpu_loop(void);
  51 void resume_all_vcpus(void);
  52 void pause_all_vcpus(void);
  53 void cpu_stop_current(void);
  54
  55 extern int icount_align_option;
  56
  57 /* Unblock cpu */
  58 void qemu_cpu_kick_self(void);
  59
  60 void cpu_synchronize_all_states(void);
  61 void cpu_synchronize_all_post_reset(void);
  62 void cpu_synchronize_all_post_init(void);
  63 void cpu_synchronize_all_pre_loadvm(void);
  64
  65 #ifndef CONFIG_USER_ONLY
  66 /* vl.c */
  67 /* *-user doesn't have configurable SMP topology */
  68 extern int smp_cores;
  69 extern int smp_threads;
  70 #endif
  71
  72 void list_cpus(const char *optarg);
  73
  74 #endif