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hv: sched: use get_running_vcpu to replace per_cpu vcpu with cpu sharing

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With cpu sharing enabled, per_cpu vcpu cannot work properly as we might
has multiple vcpus running on one pcpu.
Add a schedule API sched_get_current to get current thread_object on
specific pcpu, also add a vcpu API get_running_vcpu to get corresponding
vcpu of the thread_object.

Tracked-On: #3813
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Signed-off-by: Yu Wang <yu1.wang@intel.com>
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shuo A Liu
2019-06-10 14:49:57 +08:00
committed by ACRN System Integration
parent 891e46453d
commit 7e66c0d4fa
8 changed files with 30 additions and 6 deletions
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12
hypervisor/common/schedule.c
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@@ -13,6 +13,12 @@
#include <schedule.h>
#include <sprintf.h>
bool is_idle_thread(const struct thread_object *obj)
{
uint16_t pcpu_id = obj->pcpu_id;
return (obj == &per_cpu(idle, pcpu_id));
}
/**
* @pre obj != NULL
*/
@@ -67,6 +73,12 @@ static struct thread_object *get_next_sched_obj(const struct sched_control *ctl)
return ctl->thread_obj == NULL ? &get_cpu_var(idle) : ctl->thread_obj;
}
struct thread_object *sched_get_current(uint16_t pcpu_id)
{
struct sched_control *ctl = &per_cpu(sched_ctl, pcpu_id);
return ctl->curr_obj;
}
/**
* @pre delmode == DEL_MODE_IPI || delmode == DEL_MODE_INIT
*/