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Diffstat (limited to 'src/usr/hdat/hdattpmdata.C')
| -rw-r--r-- | src/usr/hdat/hdattpmdata.C | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/usr/hdat/hdattpmdata.C b/src/usr/hdat/hdattpmdata.C new file mode 100644 index 000000000..b714ba1df --- /dev/null +++ b/src/usr/hdat/hdattpmdata.C @@ -0,0 +1,145 @@ +/* IBM_PROLOG_BEGIN_TAG */ +/* This is an automatically generated prolog. */ +/* */ +/* $Source: src/usr/hdat/hdattpmdata.C $ */ +/* */ +/* OpenPOWER HostBoot Project */ +/* */ +/* Contributors Listed Below - COPYRIGHT 2017 */ +/* [+] International Business Machines Corp. */ +/* */ +/* */ +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ +/* */ +/* http://www.apache.org/licenses/LICENSE-2.0 */ +/* */ +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */ +/* implied. See the License for the specific language governing */ +/* permissions and limitations under the License. */ +/* */ +/* IBM_PROLOG_END_TAG */ +#include <ctype.h> +#include "hdattpmdata.H" +#include <attributeenums.H> +#include "hdatutil.H" +#include <sys/mm.h> +#include <sys/mmio.h> +#include <vpd/mvpdenums.H> +#include <pnor/pnorif.H> +#include <util/align.H> + +#include <devicefw/userif.H> +#include <targeting/common/util.H> + +namespace HDAT +{ + +extern trace_desc_t *g_trac_hdat; + +HdatTpmData::HdatTpmData(errlHndl_t &o_errlHndl, + const HDAT::hdatMsAddr_t &i_msAddr): + iv_msAddr(i_msAddr), + iv_hdatTpmData(nullptr) +{ + assert(o_errlHndl == nullptr,"The error log handle passed must be nullptr"); + + const uint64_t l_baseAddr = static_cast<uint64_t>(i_msAddr.hi) << 32 + | i_msAddr.lo; + + const uint64_t l_size = ALIGN_PAGE(sizeof(hdatTpmData_t)) + PAGESIZE; + + const uint64_t l_alignedAddr = ALIGN_PAGE_DOWN(l_baseAddr); + + auto l_virtAddr = reinterpret_cast<uint8_t*>( + mm_block_map(reinterpret_cast<void*>(l_alignedAddr),l_size)); + if (l_virtAddr) + { + const auto l_offset = l_baseAddr - l_alignedAddr; + + iv_hdatTpmData = reinterpret_cast<hdatTpmData_t *>(l_virtAddr + + l_offset); + + // TODO RTC 167290 - This memset needs to be revisited for multinode + // support. We may need to do this memset once per node or use some + // other approach to initialization. + memset(iv_hdatTpmData, 0x0, sizeof(hdatTpmData_t)); + + HDAT_DBG("Ctr iv_hdatTpmData addr 0x%.16llX virtual addr 0x%.16llX", + reinterpret_cast<uint64_t>(iv_hdatTpmData), + reinterpret_cast<uint64_t>(l_virtAddr)); + } + else + { + /*@ + * @errortype + * @moduleid HDAT::MOD_TPMDATA_CONSTRUCTOR + * @reasoncode HDAT::RC_DEV_MAP_FAIL + * @userdata1[00:31] Address attempted to map upper + * @userdata1[32:63] Address attempted to map lower + * @userdata2[00:31] Size of mapped region upper + * @userdata2[32:63] Size of mapped region lower + * @devdesc Creation of mapped region failed + * @custdesc Firmware encountered an internal error + */ + hdatBldErrLog(o_errlHndl, + MOD_TPMDATA_CONSTRUCTOR, + RC_DEV_MAP_FAIL, + static_cast<uint32_t>(UINT64_HIGH(l_alignedAddr)), + static_cast<uint32_t>(UINT64_LOW(l_alignedAddr)), + static_cast<uint32_t>(UINT64_HIGH(l_size)), + static_cast<uint32_t>(UINT64_LOW(l_size)), + ERRORLOG::ERRL_SEV_UNRECOVERABLE, + HDAT_VERSION1, + false); + } +} + +HdatTpmData::~HdatTpmData() +{ + const uint64_t l_unmapAddr = ALIGN_PAGE_DOWN( + reinterpret_cast<uint64_t>(iv_hdatTpmData)); + + // if the constructor successfully mapped the region then + // it must be unmapped + if (iv_hdatTpmData) + { + auto rc = mm_block_unmap(reinterpret_cast<void*>(l_unmapAddr)); + if (rc) + { + errlHndl_t l_errl = nullptr; + /*@ + * @errortype + * @severity ERRL_SEV_UNRECOVERABLE + * @moduleid HDAT::MOD_TPMDATA_DESTRUCTOR + * @reasoncode HDAT::RC_DEV_MAP_FAIL + * @userdata1[00:31] Address attempted to unmap upper + * @userdata1[32:63] Address attempted to unmap lower + * @devdesc Unmap of a mapped region failed + * @custdesc Firmware encountered an internal error + */ + hdatBldErrLog(l_errl, + MOD_TPMDATA_DESTRUCTOR, + RC_DEV_MAP_FAIL, + static_cast<uint32_t>(UINT64_HIGH(l_unmapAddr)), + static_cast<uint32_t>(UINT64_LOW(l_unmapAddr)), + 0, 0, + ERRORLOG::ERRL_SEV_UNRECOVERABLE, + HDAT_VERSION1, + true); + } + iv_hdatTpmData = nullptr; + } +} + +errlHndl_t HdatTpmData::hdatLoadTpmData(uint32_t &o_size,uint32_t &o_count) +{ + errlHndl_t l_errl = nullptr; + + return l_errl; +} + +} |
