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hv: sched: decouple scheduler from schedule framework

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This patch decouple some scheduling logic and abstract into a scheduler.
Then we have scheduler, schedule framework. From modulization
perspective, schedule framework provides some APIs for other layers to
use, also interact with scheduler through scheduler interaces.

Tracked-On: #3813
Signed-off-by: Jason Chen CJ <jason.cj.chen@intel.com>
Signed-off-by: Yu Wang <yu1.wang@intel.com>
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Shuo A Liu
2019-06-17 17:31:14 +08:00
committed by wenlingz
parent cad195c018
commit f04c491259
10 changed files with 157 additions and 36 deletions
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1
hypervisor/arch/x86/cpu.c
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@@ -409,6 +409,7 @@ void cpu_dead(void)
int32_t halt = 1;
uint16_t pcpu_id = get_pcpu_id();
deinit_sched(pcpu_id);
if (bitmap_test(pcpu_id, &pcpu_active_bitmap)) {
/* clean up native stuff */
vmx_off();

8
hypervisor/arch/x86/guest/vcpu.c
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@@ -729,17 +729,14 @@ static void context_switch_in(struct thread_object *next)
vcpu->running = true;
}
void schedule_vcpu(struct acrn_vcpu *vcpu)
void launch_vcpu(struct acrn_vcpu *vcpu)
{
uint16_t pcpu_id = pcpuid_from_vcpu(vcpu);
vcpu->state = VCPU_RUNNING;
pr_dbg("vcpu%hu scheduled on pcpu%hu", vcpu->vcpu_id, pcpu_id);
get_schedule_lock(pcpu_id);
insert_thread_obj(&vcpu->thread_obj, pcpu_id);
make_reschedule_request(pcpu_id, DEL_MODE_IPI);
release_schedule_lock(pcpu_id);
wake_thread(&vcpu->thread_obj);
}
/* help function for vcpu create */
@@ -761,6 +758,7 @@ int32_t prepare_vcpu(struct acrn_vm *vm, uint16_t pcpu_id)
vcpu->thread_obj.host_sp = build_stack_frame(vcpu);
vcpu->thread_obj.switch_out = context_switch_out;
vcpu->thread_obj.switch_in = context_switch_in;
init_thread_data(&vcpu->thread_obj);
}
return ret;

2
hypervisor/arch/x86/guest/vlapic.c
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@@ -1172,7 +1172,7 @@ vlapic_process_init_sipi(struct acrn_vcpu* target_vcpu, uint32_t mode, uint32_t
set_vcpu_startup_entry(target_vcpu, (icr_low & APIC_VECTOR_MASK) << 12U);
/* init vmcs after set_vcpu_startup_entry */
init_vmcs(target_vcpu);
schedule_vcpu(target_vcpu);
launch_vcpu(target_vcpu);
}
}
} else {

4
hypervisor/arch/x86/guest/vm.c
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@@ -642,7 +642,7 @@ void start_vm(struct acrn_vm *vm)
/* Only start BSP (vid = 0) and let BSP start other APs */
bsp = vcpu_from_vid(vm, BOOT_CPU_ID);
init_vmcs(bsp);
schedule_vcpu(bsp);
launch_vcpu(bsp);
}
/**
@@ -766,7 +766,7 @@ void resume_vm_from_s3(struct acrn_vm *vm, uint32_t wakeup_vec)
set_vcpu_startup_entry(bsp, wakeup_vec);
init_vmcs(bsp);
schedule_vcpu(bsp);
launch_vcpu(bsp);
}
/**