github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-09-24 10:17:28 +00:00
Code Issues Projects Releases Wiki Activity

scheduler: refine runqueue related functions

Browse Source 
add struct sched_object, and use it as input param instead of vcpu for
below functions:
- add_to_cpu_runqueue renamed from add_vcpu_to_runqueue
- remove_from_cpu_runqueue renamed from remove_vcpu_from_runqueue
- get_next_sched_obj added to get next 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 12:15:25 +08:00
committed by wenlingz
parent 93e588bc7e
commit 6d67364881
5 changed files with 35 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
hypervisor/common/schedule.c
View File

@@ -60,38 +60,48 @@ void free_pcpu(uint16_t pcpu_id)
bitmap_clear_lock(pcpu_id, &pcpu_used_bitmap);
}
void add_vcpu_to_runqueue(struct acrn_vcpu *vcpu)
void add_to_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id)
{
uint16_t pcpu_id = vcpu->pcpu_id;
struct sched_context *ctx = &per_cpu(sched_ctx, pcpu_id);
spinlock_obtain(&ctx->runqueue_lock);
if (list_empty(&vcpu->run_list)) {
list_add_tail(&vcpu->run_list, &ctx->runqueue);
if (list_empty(&obj->run_list)) {
list_add_tail(&obj->run_list, &ctx->runqueue);
}
spinlock_release(&ctx->runqueue_lock);
}
void remove_vcpu_from_runqueue(struct acrn_vcpu *vcpu)
void remove_from_cpu_runqueue(struct sched_object *obj, uint16_t pcpu_id)
{
uint16_t pcpu_id = vcpu->pcpu_id;
struct sched_context *ctx = &per_cpu(sched_ctx, pcpu_id);
spinlock_obtain(&ctx->runqueue_lock);
list_del_init(&vcpu->run_list);
list_del_init(&obj->run_list);
spinlock_release(&ctx->runqueue_lock);
}
static struct sched_object *get_next_sched_obj(uint16_t pcpu_id)
{
struct sched_context *ctx = &per_cpu(sched_ctx, pcpu_id);
struct sched_object *obj = NULL;
spinlock_obtain(&ctx->runqueue_lock);
if (!list_empty(&ctx->runqueue)) {
obj = get_first_item(&ctx->runqueue, struct sched_object, run_list);
}
spinlock_release(&ctx->runqueue_lock);
return obj;
}
static struct acrn_vcpu *select_next_vcpu(uint16_t pcpu_id)
{
struct sched_context *ctx = &per_cpu(sched_ctx, pcpu_id);
struct acrn_vcpu *vcpu = NULL;
struct sched_object *obj = get_next_sched_obj(pcpu_id);
spinlock_obtain(&ctx->runqueue_lock);
if (!list_empty(&ctx->runqueue)) {
vcpu = get_first_item(&ctx->runqueue, struct acrn_vcpu, run_list);
if (obj != NULL) {
vcpu = list_entry(obj, struct acrn_vcpu, sched_obj);
}
spinlock_release(&ctx->runqueue_lock);
return vcpu;
}