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hv:fix return value violation in prepare_vm0

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Check the return value for prepare_vcpu/start_vm

Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Mingqiang Chi 2018-07-09 15:01:52 +08:00 committed by lijinxia
parent f01e6efdf5
commit 3fed57bb9f
1 changed files with 11 additions and 8 deletions
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19
hypervisor/arch/x86/guest/vm.c
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@ -311,25 +311,28 @@ void resume_vm_from_s3(struct vm *vm, uint32_t wakeup_vec)
/* Create vm/vcpu for vm0 */
int prepare_vm0(void)
{
int ret;
int err;
uint16_t i;
struct vm *vm = NULL;
struct vm_description *vm_desc = &vm0_desc;
ret = create_vm(vm_desc, &vm);
if (ret != 0)
return ret;
err = create_vm(vm_desc, &vm);
if (err != 0)
return err;
/* Allocate all cpus to vm0 at the beginning */
for (i = 0U; i < phys_cpu_num; i++)
prepare_vcpu(vm, i);
for (i = 0U; i < phys_cpu_num; i++) {
err = prepare_vcpu(vm, i);
if (err != 0)
return err;
}
/* start vm0 BSP automatically */
start_vm(vm);
err = start_vm(vm);
pr_acrnlog("Start VM0");
return 0;
return err;
}
static inline bool vcpu_in_vm_desc(struct vcpu *vcpu,