mirror of
https://github.com/projectacrn/acrn-hypervisor.git
synced 2025-04-30 04:33:58 +00:00
3027bfab10
In the hypervisor, physical cpu id is defined as "int" or "uint32_t"
type in the hypervisor. So there are some sign conversion issues
about physical cpu id (pcpu_id) reported by static analysis tool.
Sign conversion violates the rules of MISRA C:2012.
In this patch, define physical cpu id as "uint16_t" type for all
modules in the hypervisor and change related codes. The valid
range of pcpu_id is 0~65534, INVALID_PCPU_ID is defined to the
invalid pcpu_id for error detection, BROADCAST_PCPU_ID is
broadcast pcpu_id used to notify all valid pcpu.
The type of pcpu_id in the struct vcpu and vcpu_id is "int" type,
this will be fixed in another patch.
V1-->V2:
* Change the type of pcpu_id from uint32_t to uint16_t;
* Define INVALID_PCPU_ID for error detection;
* Define BROADCAST_PCPU_ID to notify all valid pcpu.
V2-->V3:
* Update comments for INVALID_PCPU_ID and BROADCAST_PCPU_ID;
* Update addtional pcpu_id;
* Convert hexadecimals to unsigned to meet the type of pcpu_id;
* Clean up for MIN_PCPU_ID and MAX_PCPU_ID, they will be
defined by configuration.
Note: fix bug in the init_lapic(), the pcpu_id shall be less than 8,
this is constraint by implement in the init_lapic().
Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
44 lines
954 B
C
44 lines
954 B
C
/*
|
|
* Copyright (C) 2018 Intel Corporation. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef _HV_CORE_SCHEDULE_
|
|
#define _HV_CORE_SCHEDULE_
|
|
|
|
#define NEED_RESCHEDULE (1)
|
|
#define NEED_OFFLINE (2)
|
|
|
|
struct sched_context {
|
|
spinlock_t runqueue_lock;
|
|
struct list_head runqueue;
|
|
unsigned long flags;
|
|
struct vcpu *curr_vcpu;
|
|
spinlock_t scheduler_lock;
|
|
};
|
|
|
|
void init_scheduler(void);
|
|
void get_schedule_lock(uint16_t pcpu_id);
|
|
void release_schedule_lock(uint16_t pcpu_id);
|
|
|
|
void set_pcpu_used(uint16_t pcpu_id);
|
|
int allocate_pcpu(void);
|
|
void free_pcpu(uint16_t pcpu_id);
|
|
|
|
void add_vcpu_to_runqueue(struct vcpu *vcpu);
|
|
void remove_vcpu_from_runqueue(struct vcpu *vcpu);
|
|
|
|
void default_idle(void);
|
|
|
|
void make_reschedule_request(struct vcpu *vcpu);
|
|
int need_reschedule(uint16_t pcpu_id);
|
|
void make_pcpu_offline(uint16_t pcpu_id);
|
|
int need_offline(uint16_t pcpu_id);
|
|
|
|
void schedule(void);
|
|
|
|
void vcpu_thread(struct vcpu *vcpu);
|
|
#endif
|
|
|