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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/sbeio/sbe_secureHwp.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2012,2018 */
/* [+] 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 */
/**
* @file sbe_secureHwp.C
* @brief Send request to perform a HWP securely on SBE
*/
#include <config.h>
#include <trace/interface.H>
#include <errl/errlmanager.H>
#include <sbeio/sbeioif.H>
#include <sbeio/sbe_utils.H>
#include "sbe_fifodd.H"
#include <sbeio/sbeioreasoncodes.H>
#include <targeting/common/targetservice.H>
#define DEBUG_TRACE 0 // 0 = disable
extern trace_desc_t* g_trac_sbeio;
// -------------------------
// Structure definitions
// -------------------------
// Argument pointer lay-out
// uint64_t i_address
// uint32_t i_bytes,
// uint8_t* i_data,
// uint32_t i_mem_flags
struct argData_t
{
uint32_t address_0;
uint32_t address_1;
uint32_t dataLen;
uint64_t dataLoc;
uint32_t flags;
} PACKED;
#define SBE_TRACD(printf_string,args...) \
TRACDCOMP(g_trac_sbeio,"secureHwp: " printf_string,##args)
#define SBE_TRACF(printf_string,args...) \
TRACFCOMP(g_trac_sbeio,"secureHwp: " printf_string,##args)
namespace SBEIO
{
/**
* @brief Perform an SBE PutMem chip-op with arguments given from a
* "p9_putmemproc" secured function call.
*
* @param[in] i_target TARGETING::Target which the HWP is being called on
* @param[in] i_argPtr Pointer to arguments of the HWP
* @param[in] i_argSize Argument size in bytes
*
* @return errlHndl_t Error log handle on failure.
*/
errlHndl_t putMemChipOpRequest(TARGETING::Target *i_target,
const uint8_t* i_argPtr,
const size_t i_argSize)
{
SBE_TRACD(ENTER_MRK "putMemChipOpRequest");
errlHndl_t l_errl = nullptr;
do
{
#if DEBUG_TRACE
for (uint32_t ii = 0; ii < i_argSize; ii++)
{
SBE_TRACF("putMemChipOpRequest - i_argPtr[%d] = 0x%.2X", ii, i_argPtr[ii]);
}
#endif
// Setup command
SbeFifo::fifoPutMemRequest l_fifoRequest;
SbeFifo::fifoPutMemResponse l_fifoResponse;
// Map input arg pointer into structure
argData_t* l_argPtr = (argData_t*)i_argPtr;
// Address bits 0:31
l_fifoRequest.address[0] = l_argPtr->address_0;
// Address bits 32:63
l_fifoRequest.address[1] = l_argPtr->address_1;
// Data length
l_fifoRequest.dataLen = l_argPtr->dataLen;
// Allocate memory for data
l_fifoRequest.dataPtr =
reinterpret_cast<uint32_t *>(malloc(l_fifoRequest.dataLen));
// Copy data from memory into allocated memory
memcpy(l_fifoRequest.dataPtr,
reinterpret_cast<uint32_t *>(l_argPtr->dataLoc),
l_fifoRequest.dataLen);
// Flag
l_fifoRequest.flags = l_argPtr->flags;
// Command length
l_fifoRequest.wordCnt = SbeFifo::PUTMEM_CMD_BUF_LEN_IN_WORDS +
(l_fifoRequest.dataLen / SbeFifo::BYTES_PER_WORD);
if (l_fifoRequest.dataLen % SbeFifo::BYTES_PER_WORD)
{
l_fifoRequest.wordCnt += 1;
}
SBE_TRACF("INFO_MRK: Target: 0x%.8X, Address: 0x%.16llX, Datalen: %d, "
"Data[0]: 0x%.8X, Flags 0x%.4x, WordCnt: %d",
TARGETING::get_huid(i_target),
((uint64_t)(l_fifoRequest.address[0]) << 32) | l_fifoRequest.address[1],
l_fifoRequest.dataLen,
*l_fifoRequest.dataPtr,
l_fifoRequest.flags,
l_fifoRequest.wordCnt);
l_errl = SbeFifo::getTheInstance().performFifoChipOp(
i_target,
(uint32_t *)&l_fifoRequest,
(uint32_t *)&l_fifoResponse,
sizeof(l_fifoResponse));
if (l_errl)
{
SBE_TRACF("ERR_MRK: SBE Putmem chip-op call returns an error.");
}
free(l_fifoRequest.dataPtr);
} while(0);
SBE_TRACD(EXIT_MRK "putMemChipOpRequest");
return l_errl;
}
/**
* @brief Request the SBE to do a specific chip op
*
* @param[in] i_target The target of which the HWP is intended to be called on,
* this must be the first param of the request HWP
*
* @param[in] i_argPtr Pointer to argument data for the request HWP
* arguments for the requests HWP
*
* @param[in] i_argSize Size of argument data for the requests HWP, in bytes
*
* @param[in] i_hwpName Pointer to string of chars representing hwp name
*
* @return errlHndl_t Error log handle on failure.
*
*/
errlHndl_t sendSecureHwpRequest(TARGETING::Target * i_target,
uint8_t * i_argPtr,
size_t i_argSize,
const char * i_hwpName)
{
errlHndl_t errl = nullptr;
do
{
SBE_TRACF(ENTER_MRK "sendSecureHwpRequest: HWP %s, Target 0x%.8X",
i_hwpName, TARGETING::get_huid(i_target));
// First we need to figure out if this is a proc, if it isn't
// then we need to find its parent proccessor chip
auto l_targType = i_target->getAttr<TARGETING::ATTR_TYPE>();
TARGETING::Target * l_proc;
if(l_targType == TARGETING::TYPE_PROC)
{
l_proc = i_target;
}
else
{
l_proc = const_cast<TARGETING::Target *>(getParentChip(i_target));
}
// -----------------------------------------------
// Identify HWP and call appropriate chip-op setup
// -----------------------------------------------
// HWP = p9_putmemproc
if (strcmp(i_hwpName,"p9_putmemproc") == 0)
{
// Perform PutMem chip-op
errl = putMemChipOpRequest(l_proc, i_argPtr, i_argSize);
if (errl)
{
break;
}
}
// HWP = test_hwp
else if (strcmp(i_hwpName, "test_hwp") == 0)
{
}
// HWP = procedure_to_call
// This procedure is called via error path test case.
// Return an error so FAPI_PLAT_CALL_SUBROUTINE invokes
// a local copy written for the test case.
else if (strcmp(i_hwpName, "procedure_to_call") == 0)
{
SBE_TRACF(ERR_MRK "sendSecureHwpRequest: HWP %s not supported in SBE.", i_hwpName);
errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SBEIO_FIFO,
SBEIO_FIFO_INVALID_OPERATION,
0,
0,
true /*SW error*/);
errl->collectTrace(SBEIO_COMP_NAME);
break;
}
// HWP = unknown
// Assert if HWP is not recognized, either a code bug or HWP needs
// to be supported
else
{
assert(false,"sendSecureHwpRequest: HWP name is not recognized: %s", i_hwpName);
}
}while(0);
SBE_TRACD(EXIT_MRK "sendSecureHwpRequest");
return errl;
};
} //end namespace SBEIO
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