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https://github.com/projectacrn/acrn-hypervisor.git
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7a71422a6d
Change need_scheduled fileds of schedule context to flags because it's not only used for need_schedule check. Add two functions to request/handle cpu offline. The reason we only handle cpu offline request in idle thread is that we should pause the vcpu running on target pcpu. Then it's only possible that target pcpu get cpu offline request in idle thread. Signed-off-by: Yin Fegnwei <fengwei.yin@intel.com> Acked-by: Eddie Dong <Eddie.dong@intel.com>
44 lines
919 B
C
44 lines
919 B
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _HV_CORE_SCHEDULE_
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#define _HV_CORE_SCHEDULE_
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#define NEED_RESCHEDULE (1)
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#define NEED_OFFLINE (2)
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struct sched_context {
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spinlock_t runqueue_lock;
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struct list_head runqueue;
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unsigned long flags;
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struct vcpu *curr_vcpu;
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spinlock_t scheduler_lock;
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};
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void init_scheduler(void);
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void get_schedule_lock(int pcpu_id);
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void release_schedule_lock(int pcpu_id);
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void set_pcpu_used(int pcpu_id);
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int allocate_pcpu(void);
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void free_pcpu(int pcpu_id);
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void add_vcpu_to_runqueue(struct vcpu *vcpu);
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void remove_vcpu_from_runqueue(struct vcpu *vcpu);
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void default_idle(void);
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void make_reschedule_request(struct vcpu *vcpu);
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int need_reschedule(int pcpu_id);
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void make_pcpu_offline(int pcpu_id);
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int need_offline(int pcpu_id);
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void schedule(void);
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void vcpu_thread(struct vcpu *vcpu);
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#endif
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