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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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3
hypervisor/common/hv_main.c
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@@ -9,9 +9,6 @@
bool x2apic_enabled;
static DEFINE_CPU_DATA(uint64_t[64], vmexit_cnt);
static DEFINE_CPU_DATA(uint64_t[64], vmexit_time);
static void run_vcpu_pre_work(struct vcpu *vcpu)
{
unsigned long *pending_pre_work = &vcpu->pending_pre_work;

9
hypervisor/common/schedule.c
View File

@@ -7,15 +7,6 @@
#include <hypervisor.h>
#include <schedule.h>
struct sched_context {
spinlock_t runqueue_lock;
struct list_head runqueue;
unsigned long need_scheduled;
struct vcpu *curr_vcpu;
spinlock_t scheduler_lock;
};
static DEFINE_CPU_DATA(struct sched_context, sched_ctx);
static unsigned long pcpu_used_bitmap;
void init_scheduler(void)