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/*
* Copyright (c) 2008 The Hewlett-Packard Development Company
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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
*/
#include "arch/x86/bios/intelmp.hh"
#include "arch/x86/isa_traits.hh"
#include "base/logging.hh"
#include "base/types.hh"
#include "mem/port_proxy.hh"
#include "sim/byteswap.hh"
// Config entry types
#include "params/X86IntelMPBaseConfigEntry.hh"
#include "params/X86IntelMPExtConfigEntry.hh"
// General table structures
#include "params/X86IntelMPConfigTable.hh"
#include "params/X86IntelMPFloatingPointer.hh"
// Base entry types
#include "params/X86IntelMPBus.hh"
#include "params/X86IntelMPIOAPIC.hh"
#include "params/X86IntelMPIOIntAssignment.hh"
#include "params/X86IntelMPLocalIntAssignment.hh"
#include "params/X86IntelMPProcessor.hh"
// Extended entry types
#include "params/X86IntelMPAddrSpaceMapping.hh"
#include "params/X86IntelMPBusHierarchy.hh"
#include "params/X86IntelMPCompatAddrSpaceMod.hh"
using namespace std;
const char X86ISA::IntelMP::FloatingPointer::signature[] = "_MP_";
template<class T>
uint8_t
writeOutField(PortProxy& proxy, Addr addr, T val)
{
uint64_t guestVal = X86ISA::htog(val);
proxy.writeBlob(addr, &guestVal, sizeof(T));
uint8_t checkSum = 0;
while (guestVal) {
checkSum += guestVal;
guestVal >>= 8;
}
return checkSum;
}
uint8_t
writeOutString(PortProxy& proxy, Addr addr, string str, int length)
{
char cleanedString[length + 1];
cleanedString[length] = 0;
if (str.length() > length) {
memcpy(cleanedString, str.c_str(), length);
warn("Intel MP configuration table string \"%s\" "
"will be truncated to \"%s\".\n", str, (char *)&cleanedString);
} else {
memcpy(cleanedString, str.c_str(), str.length());
memset(cleanedString + str.length(), 0, length - str.length());
}
proxy.writeBlob(addr, &cleanedString, length);
uint8_t checkSum = 0;
for (int i = 0; i < length; i++)
checkSum += cleanedString[i];
return checkSum;
}
Addr
X86ISA::IntelMP::FloatingPointer::writeOut(PortProxy& proxy, Addr addr)
{
// Make sure that either a config table is present or a default
// configuration was found but not both.
if (!tableAddr && !defaultConfig)
fatal("Either an MP configuration table or a default configuration "
"must be used.");
if (tableAddr && defaultConfig)
fatal("Both an MP configuration table and a default configuration "
"were set.");
uint8_t checkSum = 0;
proxy.writeBlob(addr, signature, 4);
for (int i = 0; i < 4; i++)
checkSum += signature[i];
checkSum += writeOutField(proxy, addr + 4, tableAddr);
// The length of the structure in paragraphs, aka 16 byte chunks.
uint8_t length = 1;
proxy.writeBlob(addr + 8, &length, 1);
checkSum += length;
proxy.writeBlob(addr + 9, &specRev, 1);
checkSum += specRev;
proxy.writeBlob(addr + 11, &defaultConfig, 1);
checkSum += defaultConfig;
uint32_t features2_5 = imcrPresent ? (1 << 7) : 0;
checkSum += writeOutField(proxy, addr + 12, features2_5);
checkSum = -checkSum;
proxy.writeBlob(addr + 10, &checkSum, 1);
return 16;
}
X86ISA::IntelMP::FloatingPointer::FloatingPointer(Params * p) :
SimObject(p), tableAddr(0), specRev(p->spec_rev),
defaultConfig(p->default_config), imcrPresent(p->imcr_present)
{}
X86ISA::IntelMP::FloatingPointer *
X86IntelMPFloatingPointerParams::create()
{
return new X86ISA::IntelMP::FloatingPointer(this);
}
Addr
X86ISA::IntelMP::BaseConfigEntry::writeOut(PortProxy& proxy,
Addr addr, uint8_t &checkSum)
{
proxy.writeBlob(addr, &type, 1);
checkSum += type;
return 1;
}
X86ISA::IntelMP::BaseConfigEntry::BaseConfigEntry(Params * p, uint8_t _type) :
SimObject(p), type(_type)
{}
Addr
X86ISA::IntelMP::ExtConfigEntry::writeOut(PortProxy& proxy,
Addr addr, uint8_t &checkSum)
{
proxy.writeBlob(addr, &type, 1);
checkSum += type;
proxy.writeBlob(addr + 1, &length, 1);
checkSum += length;
return 1;
}
X86ISA::IntelMP::ExtConfigEntry::ExtConfigEntry(Params * p,
uint8_t _type, uint8_t _length) :
SimObject(p), type(_type), length(_length)
{}
const char X86ISA::IntelMP::ConfigTable::signature[] = "PCMP";
Addr
X86ISA::IntelMP::ConfigTable::writeOut(PortProxy& proxy, Addr addr)
{
uint8_t checkSum = 0;
proxy.writeBlob(addr, signature, 4);
for (int i = 0; i < 4; i++)
checkSum += signature[i];
// Base table length goes here but will be calculated later.
proxy.writeBlob(addr + 6, &specRev, 1);
checkSum += specRev;
// The checksum goes here but is still being calculated.
checkSum += writeOutString(proxy, addr + 8, oemID, 8);
checkSum += writeOutString(proxy, addr + 16, productID, 12);
checkSum += writeOutField(proxy, addr + 28, oemTableAddr);
checkSum += writeOutField(proxy, addr + 32, oemTableSize);
checkSum += writeOutField(proxy, addr + 34, (uint16_t)baseEntries.size());
checkSum += writeOutField(proxy, addr + 36, localApic);
uint8_t reserved = 0;
proxy.writeBlob(addr + 43, &reserved, 1);
checkSum += reserved;
vector<BaseConfigEntry *>::iterator baseEnt;
uint16_t offset = 44;
for (baseEnt = baseEntries.begin();
baseEnt != baseEntries.end(); baseEnt++) {
offset += (*baseEnt)->writeOut(proxy, addr + offset, checkSum);
}
// We've found the end of the base table this point.
checkSum += writeOutField(proxy, addr + 4, offset);
vector<ExtConfigEntry *>::iterator extEnt;
uint16_t extOffset = 0;
uint8_t extCheckSum = 0;
for (extEnt = extEntries.begin();
extEnt != extEntries.end(); extEnt++) {
extOffset += (*extEnt)->writeOut(proxy,
addr + offset + extOffset, extCheckSum);
}
checkSum += writeOutField(proxy, addr + 40, extOffset);
extCheckSum = -extCheckSum;
checkSum += writeOutField(proxy, addr + 42, extCheckSum);
// And now, we finally have the whole check sum completed.
checkSum = -checkSum;
writeOutField(proxy, addr + 7, checkSum);
return offset + extOffset;
};
X86ISA::IntelMP::ConfigTable::ConfigTable(Params * p) : SimObject(p),
specRev(p->spec_rev), oemID(p->oem_id), productID(p->product_id),
oemTableAddr(p->oem_table_addr), oemTableSize(p->oem_table_size),
localApic(p->local_apic),
baseEntries(p->base_entries), extEntries(p->ext_entries)
{}
X86ISA::IntelMP::ConfigTable *
X86IntelMPConfigTableParams::create()
{
return new X86ISA::IntelMP::ConfigTable(this);
}
Addr
X86ISA::IntelMP::Processor::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
BaseConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 1, localApicID);
checkSum += writeOutField(proxy, addr + 2, localApicVersion);
checkSum += writeOutField(proxy, addr + 3, cpuFlags);
checkSum += writeOutField(proxy, addr + 4, cpuSignature);
checkSum += writeOutField(proxy, addr + 8, featureFlags);
uint32_t reserved = 0;
proxy.writeBlob(addr + 12, &reserved, 4);
proxy.writeBlob(addr + 16, &reserved, 4);
return 20;
}
X86ISA::IntelMP::Processor::Processor(Params * p) : BaseConfigEntry(p, 0),
localApicID(p->local_apic_id), localApicVersion(p->local_apic_version),
cpuFlags(0), cpuSignature(0), featureFlags(p->feature_flags)
{
if (p->enable)
cpuFlags |= (1 << 0);
if (p->bootstrap)
cpuFlags |= (1 << 1);
replaceBits(cpuSignature, 0, 3, p->stepping);
replaceBits(cpuSignature, 4, 7, p->model);
replaceBits(cpuSignature, 8, 11, p->family);
}
X86ISA::IntelMP::Processor *
X86IntelMPProcessorParams::create()
{
return new X86ISA::IntelMP::Processor(this);
}
Addr
X86ISA::IntelMP::Bus::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
BaseConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 1, busID);
checkSum += writeOutString(proxy, addr + 2, busType, 6);
return 8;
}
X86ISA::IntelMP::Bus::Bus(Params * p) : BaseConfigEntry(p, 1),
busID(p->bus_id), busType(p->bus_type)
{}
X86ISA::IntelMP::Bus *
X86IntelMPBusParams::create()
{
return new X86ISA::IntelMP::Bus(this);
}
Addr
X86ISA::IntelMP::IOAPIC::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
BaseConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 1, id);
checkSum += writeOutField(proxy, addr + 2, version);
checkSum += writeOutField(proxy, addr + 3, flags);
checkSum += writeOutField(proxy, addr + 4, address);
return 8;
}
X86ISA::IntelMP::IOAPIC::IOAPIC(Params * p) : BaseConfigEntry(p, 2),
id(p->id), version(p->version), flags(0), address(p->address)
{
if (p->enable)
flags |= 1;
}
X86ISA::IntelMP::IOAPIC *
X86IntelMPIOAPICParams::create()
{
return new X86ISA::IntelMP::IOAPIC(this);
}
Addr
X86ISA::IntelMP::IntAssignment::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
BaseConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 1, interruptType);
checkSum += writeOutField(proxy, addr + 2, flags);
checkSum += writeOutField(proxy, addr + 4, sourceBusID);
checkSum += writeOutField(proxy, addr + 5, sourceBusIRQ);
checkSum += writeOutField(proxy, addr + 6, destApicID);
checkSum += writeOutField(proxy, addr + 7, destApicIntIn);
return 8;
}
X86ISA::IntelMP::IOIntAssignment::IOIntAssignment(Params * p) :
IntAssignment(p, p->interrupt_type, p->polarity, p->trigger, 3,
p->source_bus_id, p->source_bus_irq,
p->dest_io_apic_id, p->dest_io_apic_intin)
{}
X86ISA::IntelMP::IOIntAssignment *
X86IntelMPIOIntAssignmentParams::create()
{
return new X86ISA::IntelMP::IOIntAssignment(this);
}
X86ISA::IntelMP::LocalIntAssignment::LocalIntAssignment(Params * p) :
IntAssignment(p, p->interrupt_type, p->polarity, p->trigger, 4,
p->source_bus_id, p->source_bus_irq,
p->dest_local_apic_id, p->dest_local_apic_intin)
{}
X86ISA::IntelMP::LocalIntAssignment *
X86IntelMPLocalIntAssignmentParams::create()
{
return new X86ISA::IntelMP::LocalIntAssignment(this);
}
Addr
X86ISA::IntelMP::AddrSpaceMapping::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
ExtConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 2, busID);
checkSum += writeOutField(proxy, addr + 3, addrType);
checkSum += writeOutField(proxy, addr + 4, addr);
checkSum += writeOutField(proxy, addr + 12, addrLength);
return length;
}
X86ISA::IntelMP::AddrSpaceMapping::AddrSpaceMapping(Params * p) :
ExtConfigEntry(p, 128, 20),
busID(p->bus_id), addrType(p->address_type),
addr(p->address), addrLength(p->length)
{}
X86ISA::IntelMP::AddrSpaceMapping *
X86IntelMPAddrSpaceMappingParams::create()
{
return new X86ISA::IntelMP::AddrSpaceMapping(this);
}
Addr
X86ISA::IntelMP::BusHierarchy::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
ExtConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 2, busID);
checkSum += writeOutField(proxy, addr + 3, info);
checkSum += writeOutField(proxy, addr + 4, parentBus);
uint32_t reserved = 0;
proxy.writeBlob(addr + 5, &reserved, 3);
return length;
}
X86ISA::IntelMP::BusHierarchy::BusHierarchy(Params * p) :
ExtConfigEntry(p, 129, 8),
busID(p->bus_id), info(0), parentBus(p->parent_bus)
{
if (p->subtractive_decode)
info |= 1;
}
X86ISA::IntelMP::BusHierarchy *
X86IntelMPBusHierarchyParams::create()
{
return new X86ISA::IntelMP::BusHierarchy(this);
}
Addr
X86ISA::IntelMP::CompatAddrSpaceMod::writeOut(
PortProxy& proxy, Addr addr, uint8_t &checkSum)
{
ExtConfigEntry::writeOut(proxy, addr, checkSum);
checkSum += writeOutField(proxy, addr + 2, busID);
checkSum += writeOutField(proxy, addr + 3, mod);
checkSum += writeOutField(proxy, addr + 4, rangeList);
return length;
}
X86ISA::IntelMP::CompatAddrSpaceMod::CompatAddrSpaceMod(Params * p) :
ExtConfigEntry(p, 130, 8),
busID(p->bus_id), mod(0), rangeList(p->range_list)
{
if (p->add)
mod |= 1;
}
X86ISA::IntelMP::CompatAddrSpaceMod *
X86IntelMPCompatAddrSpaceModParams::create()
{
return new X86ISA::IntelMP::CompatAddrSpaceMod(this);
}