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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/secureboot/base/settings.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2013,2014 */
/* */
/* 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 <errl/errlentry.H>
#include <devicefw/userif.H>
#include "settings.H"
// SECUREBOOT : General driver traces
trace_desc_t* g_trac_secure = NULL;
TRAC_INIT(&g_trac_secure, SECURE_COMP_NAME, KILOBYTE); //1K
namespace SECUREBOOT
{
const uint64_t Settings::SECURITY_SWITCH_REGISTER = 0x00010005;
const uint64_t
Settings::SECURITY_SWITCH_TRUSTED_BOOT = 0x4000000000000000ull;
void Settings::_init()
{
errlHndl_t l_errl = NULL;
size_t size = sizeof(iv_regValue);
// Read / cache security switch setting from processor.
l_errl = deviceRead(TARGETING::MASTER_PROCESSOR_CHIP_TARGET_SENTINEL,
&iv_regValue, size,
DEVICE_SCOM_ADDRESS(SECURITY_SWITCH_REGISTER));
// If this errors, we're in bad shape and shouldn't trust anything.
assert(NULL == l_errl);
}
bool Settings::getEnabled()
{
return 0 != (iv_regValue & SECURITY_SWITCH_TRUSTED_BOOT);
}
}
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