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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/kernel/bltohbdatamgr.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 <kernel/bltohbdatamgr.H>
#include <util/align.H>
#include <kernel/console.H>
#include <assert.h>
// Global and only BlToHbDataManager instance
BlToHbDataManager g_BlToHbDataManager;
////////////////////////////////////////////////////////////////////////////////
//--------------------------------- Private ----------------------------------//
////////////////////////////////////////////////////////////////////////////////
// Set static variables to control use
Bootloader::BlToHbData BlToHbDataManager::iv_data;
bool BlToHbDataManager::iv_instantiated = false;
bool BlToHbDataManager::iv_initialized = false;
bool BlToHbDataManager::iv_dataValid = false;
size_t BlToHbDataManager::iv_preservedSize = 0;
void BlToHbDataManager::validAssert() const
{
if(!iv_dataValid)
{
printk("E> BlToHbDataManager is invalid, cannot access\n");
kassert(iv_dataValid);
}
}
void BlToHbDataManager::print() const
{
printkd("\nBlToHbData (all addr HRMOR relative):\n");
if(iv_data.version >= Bootloader::BLTOHB_SAB)
{
printkd("-- secureAccessBit = 0x%X\n", iv_data.secureAccessBit);
}
if(iv_dataValid)
{
printkd("-- eyeCatch = 0x%lX (%s)\n", iv_data.eyeCatch,
reinterpret_cast<char*>(&iv_data.eyeCatch));
printkd("-- version = 0x%lX\n", iv_data.version);
printkd("-- branchtableOffset = 0x%lX\n", iv_data.branchtableOffset);
printkd("-- SecureRom Addr = 0x%lX Size = 0x%lX\n", getSecureRomAddr(),
iv_data.secureRomSize);
printkd("-- HW keys' Hash Addr = 0x%lX Size = 0x%lX\n",
getHwKeysHashAddr(),
iv_data.hwKeysHashSize);
printkd("-- HBB header Addr = 0x%lX Size = 0x%lX\n", getHbbHeaderAddr(),
iv_data.hbbHeaderSize);
printkd("-- Reserved Size = 0x%lX\n", iv_preservedSize);
printkd("\n");
}
}
////////////////////////////////////////////////////////////////////////////////
//---------------------------------- Public ----------------------------------//
////////////////////////////////////////////////////////////////////////////////
BlToHbDataManager::BlToHbDataManager()
{
// Allow only one instantiation
if (iv_instantiated)
{
printk("E> A BlToHbDataManager class instance already exists\n");
kassert(!iv_instantiated);
}
iv_instantiated = true;
}
void BlToHbDataManager::initValid (const Bootloader::BlToHbData& i_data)
{
// Allow only one initializer call
if (iv_initialized)
{
printk("E> BlToHbDataManager class previously initialized\n");
kassert(!iv_initialized);
}
// Simple assertion checks
kassert(i_data.eyeCatch>0);
kassert(i_data.version>0);
kassert(i_data.branchtableOffset>0);
kassert(i_data.secureRom!=nullptr);
kassert(i_data.hwKeysHash!=nullptr);
kassert(i_data.hbbHeader!=nullptr);
kassert(i_data.secureRomSize>0);
kassert(i_data.hwKeysHashSize>0);
kassert(i_data.hbbHeaderSize>0);
// Set internal static data
iv_data.eyeCatch = i_data.eyeCatch;
iv_data.version = i_data.version;
iv_data.branchtableOffset = i_data.branchtableOffset;
iv_data.secureRom = i_data.secureRom;
iv_data.secureRomSize = i_data.secureRomSize;
iv_data.hwKeysHash = i_data.hwKeysHash;
iv_data.hwKeysHashSize = i_data.hwKeysHashSize;
iv_data.hbbHeader = i_data.hbbHeader;
iv_data.hbbHeaderSize = i_data.hbbHeaderSize;
// Ensure Bootloader to HB structure has the SAB member
if(iv_data.version >= Bootloader::BLTOHB_SAB)
{
iv_data.secureAccessBit = i_data.secureAccessBit;
}
// Size of data that needs to be preserved and pinned.
iv_preservedSize = ALIGN_PAGE(iv_data.secureRomSize +
iv_data.hwKeysHashSize +
iv_data.hbbHeaderSize );
iv_initialized = true;
iv_dataValid = true;
print();
}
void BlToHbDataManager::initInvalid ()
{
// Allow only one initializer call
if (iv_initialized)
{
printk("E> BlToHbDataManager class previously initialized\n");
kassert(!iv_initialized);
}
iv_initialized = true;
iv_dataValid = false;
print();
}
const uint64_t BlToHbDataManager::getBranchtableOffset() const
{
validAssert();
return iv_data.branchtableOffset;
}
const void* BlToHbDataManager::getSecureRom() const
{
validAssert();
return iv_data.secureRom;
}
const uint64_t BlToHbDataManager::getSecureRomAddr() const
{
validAssert();
return reinterpret_cast<uint64_t>(iv_data.secureRom);
}
const size_t BlToHbDataManager::getSecureRomSize() const
{
validAssert();
return iv_data.secureRomSize;
}
const void* BlToHbDataManager::getHwKeysHash() const
{
validAssert();
return iv_data.hwKeysHash;
}
const uint64_t BlToHbDataManager::getHwKeysHashAddr() const
{
validAssert();
return reinterpret_cast<uint64_t>(iv_data.hwKeysHash);
}
const size_t BlToHbDataManager::getHwKeysHashSize() const
{
validAssert();
return iv_data.hwKeysHashSize;
}
const void* BlToHbDataManager::getHbbHeader() const
{
validAssert();
return iv_data.hbbHeader;
}
const uint64_t BlToHbDataManager::getHbbHeaderAddr() const
{
validAssert();
return reinterpret_cast<uint64_t>(iv_data.hbbHeader);
}
const size_t BlToHbDataManager::getHbbHeaderSize() const
{
validAssert();
return iv_data.hbbHeaderSize;
}
const bool BlToHbDataManager::getSecureAccessBit() const
{
validAssert();
return iv_data.secureAccessBit;
}
const size_t BlToHbDataManager::getPreservedSize() const
{
validAssert();
return iv_preservedSize;
}
const bool BlToHbDataManager::isValid() const
{
return iv_dataValid;
}
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