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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hdat/hdattpmdata.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2017,2018 */
/* [+] 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 <sys/internode.h>
#include <vpd/mvpdenums.H>
#include <pnor/pnorif.H>
#include <util/align.H>
#include <algorithm>
#include <devicefw/userif.H>
#include <targeting/common/util.H>
#include <targeting/common/target.H>
#include <targeting/common/targetservice.H>
#include <targeting/common/utilFilter.H>
#include <targeting/common/entitypath.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;
// get the top level target
TARGETING::Target* sys = nullptr;
TARGETING::targetService().getTopLevelTarget( sys );
assert(sys != nullptr,
"HdatTpmData::HdatTpmData: Bug! Could not obtain top level target");
// get the node bit string to see what our node layout looks like
auto l_nodeBits = sys->getAttr<TARGETING::ATTR_HB_EXISTING_IMAGE>();
// count the bits to get the functional/present nodes
iv_numNodes = __builtin_popcount(l_nodeBits);
// Must be at least one. Add one in the zero case.
iv_numNodes += !iv_numNodes;
const auto maxLogicalSize = hdatTpmDataCalcInstanceSize() * iv_numNodes;
const uint64_t l_size = ALIGN_PAGE(maxLogicalSize) + 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);
memset(iv_hdatTpmData, 0x0, maxLogicalSize);
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;
o_count = 0;
// calculate the size of each instance
o_size = hdatTpmDataCalcInstanceSize();
auto l_hdatTpmData = iv_hdatTpmData;
for (uint32_t i_instance = 0; i_instance < iv_numNodes; i_instance++)
{
// Note: HdatTpmData constructor already cleared the memory to the tune
// of o_size (hdatTpmDataCalcInstanceSize()) bytes
// We add the first two fields for a reference to aid in debugging,
// but the rest will be populated in FSP/OpenPower common code. Any
// work here would just be duplicated later during the runtime istep.
// add the format magic number
l_hdatTpmData->hdatHdr.hdatStructId = HDAT::HDAT_HDIF_STRUCT_ID;
// add the eyecatcher
memcpy(l_hdatTpmData->hdatHdr.hdatStructName,
g_hdatTpmDataEyeCatch,
strlen(g_hdatTpmDataEyeCatch));
// Account for this one instance of Node TPM Related Data.
++o_count;
// Move to the next instance
l_hdatTpmData = reinterpret_cast<hdatTpmData_t *>(
reinterpret_cast<uint8_t*>(l_hdatTpmData) + o_size);
}
return l_errl;
}
}
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