diff options
Diffstat (limited to 'src/arch/x86/bios/smbios.cc')
| -rw-r--r-- | src/arch/x86/bios/smbios.cc | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/arch/x86/bios/smbios.cc b/src/arch/x86/bios/smbios.cc new file mode 100644 index 000000000..de4a263b7 --- /dev/null +++ b/src/arch/x86/bios/smbios.cc @@ -0,0 +1,245 @@ +/* + * Copyright (c) 2008 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +/* + * Copyright (c) 2008 The Hewlett-Packard Development Company + * All rights reserved. + * + * Redistribution and use of this software in source and binary forms, + * with or without modification, are permitted provided that the + * following conditions are met: + * + * The software must be used only for Non-Commercial Use which means any + * use which is NOT directed to receiving any direct monetary + * compensation for, or commercial advantage from such use. Illustrative + * examples of non-commercial use are academic research, personal study, + * teaching, education and corporate research & development. + * Illustrative examples of commercial use are distributing products for + * commercial advantage and providing services using the software for + * commercial advantage. + * + * If you wish to use this software or functionality therein that may be + * covered by patents for commercial use, please contact: + * Director of Intellectual Property Licensing + * Office of Strategy and Technology + * Hewlett-Packard Company + * 1501 Page Mill Road + * Palo Alto, California 94304 + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. Redistributions + * in binary form must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. Neither the name of + * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. No right of + * sublicense is granted herewith. Derivatives of the software and + * output created using the software may be prepared, but only for + * Non-Commercial Uses. Derivatives of the software may be shared with + * others provided: (i) the others agree to abide by the list of + * conditions herein which includes the Non-Commercial Use restrictions; + * and (ii) such Derivatives of the software include the above copyright + * notice to acknowledge the contribution from this software where + * applicable, this list of conditions and the disclaimer below. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + */ + +#include "arch/x86/bios/smbios.hh" +#include "arch/x86/isa_traits.hh" +#include "mem/port.hh" +#include "sim/byteswap.hh" +#include "sim/host.hh" + +const char X86ISA::SMBios::SMBiosTable::SMBiosHeader::anchorString[] = "_SM_"; +const uint8_t X86ISA::SMBios::SMBiosTable:: + SMBiosHeader::formattedArea[] = {0,0,0,0,0}; +const uint8_t X86ISA::SMBios::SMBiosTable:: + SMBiosHeader::entryPointLength = 0x1F; +const uint8_t X86ISA::SMBios::SMBiosTable:: + SMBiosHeader::entryPointRevision = 0; +const char X86ISA::SMBios::SMBiosTable:: + SMBiosHeader::IntermediateHeader::anchorString[] = "_DMI_"; + +uint16_t +X86ISA::SMBios::BiosInformation::writeOut(FunctionalPort * port, Addr addr) +{ + uint8_t size = SMBiosStructure::writeOut(port, addr); + + port->writeBlob(addr + 0x4, (uint8_t *)(&vendor), 1); + port->writeBlob(addr + 0x5, (uint8_t *)(&version), 1); + + uint16_t startingAddrSegmentGuest = X86ISA::htog(startingAddrSegment); + port->writeBlob(addr + 0x6, (uint8_t *)(&startingAddrSegmentGuest), 2); + + port->writeBlob(addr + 0x8, (uint8_t *)(&releaseDate), 1); + port->writeBlob(addr + 0x9, (uint8_t *)(&romSize), 1); + + uint64_t characteristicsGuest = X86ISA::htog(characteristics); + port->writeBlob(addr + 0xA, (uint8_t *)(&characteristicsGuest), 8); + + uint16_t characteristicExtBytesGuest = + X86ISA::htog(characteristicExtBytes); + port->writeBlob(addr + 0x12, (uint8_t *)(&characteristicExtBytesGuest), 2); + + port->writeBlob(addr + 0x14, (uint8_t *)(&major), 1); + port->writeBlob(addr + 0x15, (uint8_t *)(&minor), 1); + port->writeBlob(addr + 0x16, (uint8_t *)(&embContFirmwareMajor), 1); + port->writeBlob(addr + 0x17, (uint8_t *)(&embContFirmwareMinor), 1); + + writeOutStrings(port, addr + getLength()); + + return size; +} + +void +X86ISA::SMBios::SMBiosTable::writeOut(FunctionalPort * port, Addr addr) +{ + + /* + * The main header + */ + uint8_t mainChecksum = 0; + + port->writeBlob(addr, (uint8_t *)smbiosHeader.anchorString, 4); + for (int i = 0; i < 4; i++) + mainChecksum += smbiosHeader.anchorString[i]; + + // The checksum goes here, but we're figuring it out as we go. + + port->writeBlob(addr + 0x5, + (uint8_t *)(&smbiosHeader.entryPointLength), 1); + mainChecksum += smbiosHeader.entryPointLength; + port->writeBlob(addr + 0x6, + (uint8_t *)(&smbiosHeader.majorVersion), 1); + mainChecksum += smbiosHeader.majorVersion; + port->writeBlob(addr + 0x7, + (uint8_t *)(&smbiosHeader.minorVersion), 1); + mainChecksum += smbiosHeader.minorVersion; + // Maximum structure size goes here, but we'll figure it out later. + port->writeBlob(addr + 0xA, + (uint8_t *)(&smbiosHeader.entryPointRevision), 1); + mainChecksum += smbiosHeader.entryPointRevision; + port->writeBlob(addr + 0xB, + (uint8_t *)(&smbiosHeader.formattedArea), 5); + for (int i = 0; i < 5; i++) + mainChecksum += smbiosHeader.formattedArea[i]; + + /* + * The intermediate header + */ + uint8_t intChecksum = 0; + + port->writeBlob(addr + 0x10, + (uint8_t *)smbiosHeader.intermediateHeader.anchorString, 5); + for (int i = 0; i < 5; i++) + intChecksum += smbiosHeader.intermediateHeader.anchorString[i]; + + // The checksum goes here, but we're figuring it out as we go. + // Then the length of the structure table which we'll find later + + uint32_t tableAddrGuest = + X86ISA::htog(smbiosHeader.intermediateHeader.tableAddr); + port->writeBlob(addr + 0x18, (uint8_t *)(&tableAddrGuest), 4); + for (int i = 0; i < 4; i++) { + intChecksum += tableAddrGuest; + tableAddrGuest >>= 8; + } + + uint16_t numStructs = X86ISA::gtoh(structures.size()); + port->writeBlob(addr + 0x1C, (uint8_t *)(&numStructs), 2); + for (int i = 0; i < 2; i++) { + intChecksum += numStructs; + numStructs >>= 8; + } + + port->writeBlob(addr + 0x1E, + (uint8_t *)(&smbiosHeader.intermediateHeader.smbiosBCDRevision), + 1); + intChecksum += smbiosHeader.intermediateHeader.smbiosBCDRevision; + + /* + * Structure table + */ + + Addr base = smbiosHeader.intermediateHeader.tableAddr; + Addr offset = 0; + uint16_t maxSize = 0; + std::vector<SMBiosStructure>::iterator it; + for (it = structures.begin(); it != structures.end(); it++) { + uint16_t size = it->writeOut(port, base + offset); + if (size > maxSize) + maxSize = size; + offset += size; + } + + /* + * Header + */ + + maxSize = X86ISA::htog(maxSize); + port->writeBlob(addr + 0x8, (uint8_t *)(&maxSize), 2); + for (int i = 0; i < 2; i++) { + mainChecksum += maxSize; + maxSize >>= 8; + } + + // Set the checksum + mainChecksum = -mainChecksum; + port->writeBlob(addr + 0x4, (uint8_t *)(&mainChecksum), 1); + + /* + * Intermediate header + */ + + uint16_t tableSize = offset; + tableSize = X86ISA::htog(tableSize); + port->writeBlob(addr + 0x16, (uint8_t *)(&tableSize), 2); + for (int i = 0; i < 2; i++) { + intChecksum += tableSize; + tableSize >>= 8; + } + + intChecksum = -intChecksum; + port->writeBlob(addr + 0x15, (uint8_t *)(&intChecksum), 1); +} |