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scheduler: make scheduling based on struct sched_object

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use struct sched_object as the main interface of scheduling, then
make scheduler as an independent module to vcpu:
- add struct sched_object as one field in struct vcpu
- define sched_object.thread for switch_to thread
- define sched_object.prepare_switch_out/in for prepare_switch before
  switch_to
- move context_switch_out/context_switch_in into vcpu.c as
  vcpu.sched_obj.prepare_switch_out/in
- make default_idle as global idle.thread for idle_thread
- make vcpu_thread as vcpu.sched_obj.thread for each vcpu thread
- simplify switch_to based on sched_object

Tracked-On: #1842
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Eddie Dong <edide.dong@intel.com>
This commit is contained in:
Jason Chen CJ
2018-12-20 15:15:20 +08:00
committed by wenlingz
parent 8aae0dff87
commit ff0703dd40
6 changed files with 116 additions and 104 deletions
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13
hypervisor/include/common/schedule.h
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@@ -10,19 +10,26 @@
#define NEED_RESCHEDULE (1U)
#define NEED_OFFLINE (2U)
struct sched_object;
typedef void (*run_thread_t)(struct sched_object *obj);
typedef void (*prepare_switch_t)(struct sched_object *obj);
struct sched_object {
struct list_head run_list;
run_thread_t thread;
prepare_switch_t prepare_switch_out;
prepare_switch_t prepare_switch_in;
};
struct sched_context {
spinlock_t runqueue_lock;
struct list_head runqueue;
uint64_t flags;
struct acrn_vcpu *curr_vcpu;
struct sched_object *curr_obj;
spinlock_t scheduler_lock;
};
void init_scheduler(void);
void switch_to_idle(run_thread_t idle_thread);
void get_schedule_lock(uint16_t pcpu_id);
void release_schedule_lock(uint16_t pcpu_id);
@@ -33,15 +40,11 @@ void free_pcpu(uint16_t pcpu_id);
void add_to_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id);
void remove_from_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id);
void default_idle(void);
void make_reschedule_request(uint16_t pcpu_id);
int32_t need_reschedule(uint16_t pcpu_id);
void make_pcpu_offline(uint16_t pcpu_id);
int32_t need_offline(uint16_t pcpu_id);
void schedule(void);
void vcpu_thread(struct acrn_vcpu *vcpu);
#endif /* SCHEDULE_H */