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HV:treewide:C99-friendly per_cpu implementation change the per_cpu method

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The current implementation of per_cpu relies on several non-c99 features,
and in additional involves arbitrary pointer arithmetic which is not MIS-
RA C friendly.

This patch introduces struct per_cpu_region which holds all the per_cpu
variables. Allocation of per_cpu data regions and access to per_cpu vari-
ables are greatly simplified, at the cost of making all per_cpu varaibl-
es accessible in files.

Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
This commit is contained in:
Huihuang Shi
2018-06-05 15:25:07 +08:00
committed by lijinxia
parent cbb692d910
commit e591315a65
20 changed files with 95 additions and 130 deletions
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8
hypervisor/include/common/schedule.h
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@@ -9,6 +9,14 @@
#define NEED_RESCHEDULED (1)
struct sched_context {
spinlock_t runqueue_lock;
struct list_head runqueue;
unsigned long need_scheduled;
struct vcpu *curr_vcpu;
spinlock_t scheduler_lock;
};
void init_scheduler(void);
void get_schedule_lock(int pcpu_id);
void release_schedule_lock(int pcpu_id);