C++ TargetHandleList::push_back方法代码示例

errlHndl_t initiateDrtm()
{
    SB_ENTER("initiateDrtm");

    errlHndl_t pError = nullptr;

    // For DRTM, the thread has to be pinned to a core (and therefore pinned to
    // a chip)
    task_affinity_pin();

    void* drtmPayloadVirtAddr = nullptr;

    do
    {
        const std::vector<SECUREBOOT::ProcSecurity> LLP {
            SECUREBOOT::ProcSecurity::LLPBit,
        };

        const std::vector<SECUREBOOT::ProcSecurity> LLS {
            SECUREBOOT::ProcSecurity::LLSBit,
        };

        // Determine which fabric group and chip this task is executing on and
        // create a filter to find the matching chip target
        auto cpuId = task_getcpuid();
        auto groupId = PIR_t::groupFromPir(cpuId);
        auto chipId = PIR_t::chipFromPir(cpuId);
        TARGETING::PredicateAttrVal<TARGETING::ATTR_FABRIC_GROUP_ID>
            matchesGroup(groupId);
        TARGETING::PredicateAttrVal<TARGETING::ATTR_FABRIC_CHIP_ID>
            matchesChip(chipId);
        TARGETING::PredicatePostfixExpr matchesGroupAndChip;
        matchesGroupAndChip.push(&matchesGroup).push(&matchesChip).And();

        // Get all the functional proc chips and find the chip we're running on
        TARGETING::TargetHandleList funcProcChips;
        TARGETING::getAllChips(funcProcChips,
                               TARGETING::TYPE_PROC);
        if(funcProcChips.empty())
        {
            // TODO: RTC 167205: GA error handling
            assert(false,"initiateDrtm: BUG! Functional proc chips is empty, "
                "yet this code is running on a functional chip!");
            break;
        }

        // NOTE: std::find_if requires predicates to be copy constructable, but
        // predicates are not; hence use a wrapper lambda function to bypass
        // that limitation
        auto pMatch =
            std::find_if(funcProcChips.begin(),funcProcChips.end(),
                [&matchesGroupAndChip] ( TARGETING::Target* pTarget )
                {
                    return matchesGroupAndChip(pTarget);
                } );

        if(pMatch == funcProcChips.end())
        {
            // TODO: RTC 167205: GA error handling
            assert(false, "initiateDrtm: BUG! No functional chip found "
                "to be running this code");
            break;
        }

        // Move the matching target to the end of the list.
        // NOTE: If reverse iterators were supported, we could have verified the
        // last element of the container is not the match, and done a
        // std::iter_swap of the match and the last element
        TARGETING::Target* const pMatchTarget = *pMatch;
        funcProcChips.erase(pMatch);
        funcProcChips.push_back(pMatchTarget);

        // Map to the DRTM payload area in mainstore
        const uint32_t drtmPayloadPhysAddrMb = DRTM_RIT_PAYLOAD_PHYS_ADDR_MB;
        drtmPayloadVirtAddr = mm_block_map(
            reinterpret_cast<void*>(drtmPayloadPhysAddrMb*BYTES_PER_MEGABYTE),
            PAGESIZE);
        if(drtmPayloadVirtAddr == nullptr)
        {
            // TODO: RTC 167205: GA error handling
            assert(false, "initiateDrtm: BUG! Failed in call to mm_block_map "
                "to map the DRTM payload.");
            break;
        }

        // Copy the DRTM payload to the DRTM payload area
        memcpy(
            reinterpret_cast<uint32_t*>(drtmPayloadVirtAddr),
            DRTM_RIT_PAYLOAD,
            sizeof(DRTM_RIT_PAYLOAD));

        // The required generic sequencing to initiate DRTM is as follows:
        // 1) Initiating task must pin itself to a core (to ensure it
        //     will not be accidentally queisced by SBE)
        // 2) It must set the DRTM payload information in the master processor
        //     mailbox scratch registers (registers 7 and 8) before it goes
        //     offline
        // 3) It must determine the processor it's currently running on
        // 4) It must set the late launch bit (LL) on all other processors
        //     4a) If the given processor is an active master, it must set
//.........这里部分代码省略.........