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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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21
hypervisor/common/hv_main.c
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@@ -17,8 +17,9 @@ static void run_vcpu_pre_work(struct acrn_vcpu *vcpu)
}
}
void vcpu_thread(struct acrn_vcpu *vcpu)
void vcpu_thread(struct sched_object *obj)
{
struct acrn_vcpu *vcpu = list_entry(obj, struct acrn_vcpu, sched_obj);
uint32_t basic_exit_reason = 0U;
int32_t ret = 0;
@@ -88,3 +89,21 @@ void vcpu_thread(struct acrn_vcpu *vcpu)
profiling_post_vmexit_handler(vcpu);
} while (1);
}
void default_idle(__unused struct sched_object *obj)
{
uint16_t pcpu_id = get_cpu_id();
while (1) {
if (need_reschedule(pcpu_id) != 0) {
schedule();
} else if (need_offline(pcpu_id) != 0) {
cpu_dead();
} else {
CPU_IRQ_ENABLE();
handle_complete_ioreq(pcpu_id);
cpu_do_idle();
CPU_IRQ_DISABLE();
}
}
}