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hv: trusty: minor change of coding style

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Refine return value checking in functions.

Tracked-On: #2874
Signed-off-by: Qi Yadong <yadong.qi@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Qi Yadong 2019-04-02 15:20:43 +08:00 committed by wenlingz
parent a7e112813c
commit 6d582f62d2
1 changed files with 12 additions and 13 deletions
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25
hypervisor/arch/x86/guest/trusty.c
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@ -312,7 +312,7 @@ void switch_world(struct acrn_vcpu *vcpu, int32_t next_world)
*/
static bool setup_trusty_info(struct acrn_vcpu *vcpu, uint32_t mem_size, uint64_t mem_base_hpa, uint8_t *rkey)
{
bool ret = true;
bool success = false;
struct trusty_mem *mem;
struct trusty_key_info key_info;
struct trusty_startup_param startup_param;
@ -329,13 +329,11 @@ static bool setup_trusty_info(struct acrn_vcpu *vcpu, uint32_t mem_size, uint64_
}
/* Derive dvseed from dseed for Trusty */
ret = derive_virtual_seed(&key_info.dseed_list[0U], &key_info.num_seeds,
if (derive_virtual_seed(&key_info.dseed_list[0U], &key_info.num_seeds,
NULL, 0U,
vcpu->vm->GUID, sizeof(vcpu->vm->GUID));
if (ret == true) {
vcpu->vm->GUID, sizeof(vcpu->vm->GUID))) {
/* Derive encryption key of attestation keybox from dseed */
ret = derive_attkb_enc_key(key_info.attkb_enc_key);
if (ret == true) {
if (derive_attkb_enc_key(key_info.attkb_enc_key)) {
/* Prepare trusty startup param */
startup_param.size_of_this_struct = sizeof(struct trusty_startup_param);
startup_param.mem_size = mem_size;
@ -356,12 +354,13 @@ static bool setup_trusty_info(struct acrn_vcpu *vcpu, uint32_t mem_size, uint64_
(void)memcpy_s(&mem->first_page.startup_param, sizeof(struct trusty_startup_param),
&startup_param, sizeof(startup_param));
clac();
success = true;
}
}
(void)memset(&key_info, 0U, sizeof(key_info));
return ret;
return success;
}
/* Secure World will reuse environment of UOS_Loder since they are
@ -395,7 +394,7 @@ static bool init_secure_world_env(struct acrn_vcpu *vcpu,
bool initialize_trusty(struct acrn_vcpu *vcpu, struct trusty_boot_param *boot_param)
{
bool ret = true;
bool success = true;
uint64_t trusty_entry_gpa, trusty_base_gpa, trusty_base_hpa;
uint32_t trusty_mem_size;
struct acrn_vm *vm = vcpu->vm;
@ -415,15 +414,15 @@ bool initialize_trusty(struct acrn_vcpu *vcpu, struct trusty_boot_param *boot_pa
break;
default:
pr_err("%s: Version(%u) not supported!\n", __func__, boot_param->version);
ret = false;
success = false;
break;
}
if (ret == true) {
if (success) {
if ((vm->sworld_control.flag.supported == 0UL)
|| (vm->arch_vm.sworld_eptp != NULL)) {
pr_err("Sworld is not supported or Sworld eptp is not NULL");
ret = false;
success = false;
} else {
trusty_mem_size = boot_param->mem_size;
create_secure_world_ept(vm, trusty_base_gpa, trusty_mem_size,
@ -444,12 +443,12 @@ bool initialize_trusty(struct acrn_vcpu *vcpu, struct trusty_boot_param *boot_pa
/* switch to Secure World */
vcpu->arch.cur_context = SECURE_WORLD;
} else {
ret = false;
success = false;
}
}
}
return ret;
return success;
}
void save_sworld_context(struct acrn_vcpu *vcpu)