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HV:fix vcpu more than one return entry

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ACRN coding guideline requires function shall have only one return entry.
Fix it.

Tracked-On: #861
Signed-off-by: Huihuang Shi <huihuang.shi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Huihuang Shi 2019-06-27 18:23:11 +08:00 committed by Eddie Dong
parent 198e01716a
commit 74b788988d
1 changed files with 102 additions and 103 deletions
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37
hypervisor/arch/x86/guest/vcpu.c
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@ -349,11 +349,7 @@ int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn
* vm->hw.created_vcpus++;
*/
vcpu_id = atomic_xadd16(&vm->hw.created_vcpus, 1U);
if (vcpu_id >= CONFIG_MAX_VCPUS_PER_VM) {
vm->hw.created_vcpus--;
pr_err("%s, vcpu id is invalid!\n", __func__);
return -EINVAL;
}
if (vcpu_id < CONFIG_MAX_VCPUS_PER_VM) {
/* Allocate memory for VCPU */
vcpu = &(vm->hw.vcpu_array[vcpu_id]);
(void)memset((void *)vcpu, 0U, sizeof(struct acrn_vcpu));
@ -406,14 +402,20 @@ int32_t create_vcpu(uint16_t pcpu_id, struct acrn_vm *vm, struct acrn_vcpu **rtn
*rtn_vcpu_handle = vcpu;
vcpu->launched = false;
vcpu->running = 0;
vcpu->arch.nr_sipi = 0;
vcpu->running = 0U;
vcpu->arch.nr_sipi = 0U;
vcpu->state = VCPU_INIT;
reset_vcpu_regs(vcpu);
(void)memset(&vcpu->req, 0U, sizeof(struct io_request));
(void)memset((void *)&vcpu->req, 0U, sizeof(struct io_request));
ret = 0;
} else {
vm->hw.created_vcpus -= 1U;
pr_err("%s, vcpu id is invalid!\n", __func__);
ret = -EINVAL;
}
return 0;
return ret;
}
/*
@ -561,14 +563,12 @@ void reset_vcpu(struct acrn_vcpu *vcpu)
ASSERT(vcpu->state != VCPU_RUNNING,
"reset vcpu when it's running");
if (vcpu->state == VCPU_INIT)
return;
if (vcpu->state != VCPU_INIT) {
vcpu->state = VCPU_INIT;
vcpu->launched = false;
vcpu->running = 0;
vcpu->arch.nr_sipi = 0;
vcpu->running = 0U;
vcpu->arch.nr_sipi = 0U;
vcpu->arch.exception_info.exception = VECTOR_INVALID;
vcpu->arch.cur_context = NORMAL_WORLD;
@ -586,6 +586,7 @@ void reset_vcpu(struct acrn_vcpu *vcpu)
vlapic_reset(vlapic);
reset_vcpu_regs(vcpu);
}
}
void pause_vcpu(struct acrn_vcpu *vcpu, enum vcpu_state new_state)
@ -699,17 +700,14 @@ static uint64_t build_stack_frame(struct acrn_vcpu *vcpu)
/* help function for vcpu create */
int32_t prepare_vcpu(struct acrn_vm *vm, uint16_t pcpu_id)
{
int32_t ret = 0;
int32_t ret;
struct acrn_vcpu *vcpu = NULL;
char thread_name[16];
uint64_t orig_val, final_val;
struct acrn_vm_config *conf;
ret = create_vcpu(pcpu_id, vm, &vcpu);
if (ret != 0) {
return ret;
}
if (ret == 0) {
set_pcpu_used(pcpu_id);
/* Update CLOS for this CPU */
@ -727,6 +725,7 @@ int32_t prepare_vcpu(struct acrn_vm *vm, uint16_t pcpu_id)
vcpu->sched_obj.host_sp = build_stack_frame(vcpu);
vcpu->sched_obj.prepare_switch_out = context_switch_out;
vcpu->sched_obj.prepare_switch_in = context_switch_in;
}
return ret;
}