interrupts.cc revision 10542
15647Sgblack@eecs.umich.edu/* 29544Sandreas.hansson@arm.com * Copyright (c) 2012-2013 ARM Limited 38922Swilliam.wang@arm.com * All rights reserved 48922Swilliam.wang@arm.com * 58922Swilliam.wang@arm.com * The license below extends only to copyright in the software and shall 68922Swilliam.wang@arm.com * not be construed as granting a license to any other intellectual 78922Swilliam.wang@arm.com * property including but not limited to intellectual property relating 88922Swilliam.wang@arm.com * to a hardware implementation of the functionality of the software 98922Swilliam.wang@arm.com * licensed hereunder. You may use the software subject to the license 108922Swilliam.wang@arm.com * terms below provided that you ensure that this notice is replicated 118922Swilliam.wang@arm.com * unmodified and in its entirety in all distributions of the software, 128922Swilliam.wang@arm.com * modified or unmodified, in source code or in binary form. 138922Swilliam.wang@arm.com * 145647Sgblack@eecs.umich.edu * Copyright (c) 2008 The Hewlett-Packard Development Company 155647Sgblack@eecs.umich.edu * All rights reserved. 165647Sgblack@eecs.umich.edu * 177087Snate@binkert.org * The license below extends only to copyright in the software and shall 187087Snate@binkert.org * not be construed as granting a license to any other intellectual 197087Snate@binkert.org * property including but not limited to intellectual property relating 207087Snate@binkert.org * to a hardware implementation of the functionality of the software 217087Snate@binkert.org * licensed hereunder. You may use the software subject to the license 227087Snate@binkert.org * terms below provided that you ensure that this notice is replicated 237087Snate@binkert.org * unmodified and in its entirety in all distributions of the software, 247087Snate@binkert.org * modified or unmodified, in source code or in binary form. 255647Sgblack@eecs.umich.edu * 267087Snate@binkert.org * Redistribution and use in source and binary forms, with or without 277087Snate@binkert.org * modification, are permitted provided that the following conditions are 287087Snate@binkert.org * met: redistributions of source code must retain the above copyright 297087Snate@binkert.org * notice, this list of conditions and the following disclaimer; 307087Snate@binkert.org * redistributions in binary form must reproduce the above copyright 317087Snate@binkert.org * notice, this list of conditions and the following disclaimer in the 327087Snate@binkert.org * documentation and/or other materials provided with the distribution; 337087Snate@binkert.org * neither the name of the copyright holders nor the names of its 345647Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 357087Snate@binkert.org * this software without specific prior written permission. 365647Sgblack@eecs.umich.edu * 375647Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 385647Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 395647Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 405647Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 415647Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 425647Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 435647Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 445647Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 455647Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 465647Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 475647Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 485647Sgblack@eecs.umich.edu * 495647Sgblack@eecs.umich.edu * Authors: Gabe Black 505647Sgblack@eecs.umich.edu */ 515647Sgblack@eecs.umich.edu 5210474Sandreas.hansson@arm.com#include <memory> 5310474Sandreas.hansson@arm.com 548229Snate@binkert.org#include "arch/x86/regs/apic.hh" 555647Sgblack@eecs.umich.edu#include "arch/x86/interrupts.hh" 565654Sgblack@eecs.umich.edu#include "arch/x86/intmessage.hh" 575647Sgblack@eecs.umich.edu#include "cpu/base.hh" 588232Snate@binkert.org#include "debug/LocalApic.hh" 596137Sgblack@eecs.umich.edu#include "dev/x86/i82094aa.hh" 606137Sgblack@eecs.umich.edu#include "dev/x86/pc.hh" 616137Sgblack@eecs.umich.edu#include "dev/x86/south_bridge.hh" 625654Sgblack@eecs.umich.edu#include "mem/packet_access.hh" 636046Sgblack@eecs.umich.edu#include "sim/system.hh" 648781Sgblack@eecs.umich.edu#include "sim/full_system.hh" 655647Sgblack@eecs.umich.edu 665648Sgblack@eecs.umich.eduint 675648Sgblack@eecs.umich.edudivideFromConf(uint32_t conf) 685647Sgblack@eecs.umich.edu{ 695647Sgblack@eecs.umich.edu // This figures out what division we want from the division configuration 705647Sgblack@eecs.umich.edu // register in the local APIC. The encoding is a little odd but it can 715647Sgblack@eecs.umich.edu // be deciphered fairly easily. 725647Sgblack@eecs.umich.edu int shift = ((conf & 0x8) >> 1) | (conf & 0x3); 735647Sgblack@eecs.umich.edu shift = (shift + 1) % 8; 745647Sgblack@eecs.umich.edu return 1 << shift; 755647Sgblack@eecs.umich.edu} 765647Sgblack@eecs.umich.edu 775648Sgblack@eecs.umich.edunamespace X86ISA 785647Sgblack@eecs.umich.edu{ 795648Sgblack@eecs.umich.edu 805648Sgblack@eecs.umich.eduApicRegIndex 815648Sgblack@eecs.umich.edudecodeAddr(Addr paddr) 825648Sgblack@eecs.umich.edu{ 835648Sgblack@eecs.umich.edu ApicRegIndex regNum; 845648Sgblack@eecs.umich.edu paddr &= ~mask(3); 855648Sgblack@eecs.umich.edu switch (paddr) 865648Sgblack@eecs.umich.edu { 875648Sgblack@eecs.umich.edu case 0x20: 885648Sgblack@eecs.umich.edu regNum = APIC_ID; 895648Sgblack@eecs.umich.edu break; 905648Sgblack@eecs.umich.edu case 0x30: 915648Sgblack@eecs.umich.edu regNum = APIC_VERSION; 925648Sgblack@eecs.umich.edu break; 935648Sgblack@eecs.umich.edu case 0x80: 945648Sgblack@eecs.umich.edu regNum = APIC_TASK_PRIORITY; 955648Sgblack@eecs.umich.edu break; 965648Sgblack@eecs.umich.edu case 0x90: 975648Sgblack@eecs.umich.edu regNum = APIC_ARBITRATION_PRIORITY; 985648Sgblack@eecs.umich.edu break; 995648Sgblack@eecs.umich.edu case 0xA0: 1005648Sgblack@eecs.umich.edu regNum = APIC_PROCESSOR_PRIORITY; 1015648Sgblack@eecs.umich.edu break; 1025648Sgblack@eecs.umich.edu case 0xB0: 1035648Sgblack@eecs.umich.edu regNum = APIC_EOI; 1045648Sgblack@eecs.umich.edu break; 1055648Sgblack@eecs.umich.edu case 0xD0: 1065648Sgblack@eecs.umich.edu regNum = APIC_LOGICAL_DESTINATION; 1075648Sgblack@eecs.umich.edu break; 1085648Sgblack@eecs.umich.edu case 0xE0: 1095648Sgblack@eecs.umich.edu regNum = APIC_DESTINATION_FORMAT; 1105648Sgblack@eecs.umich.edu break; 1115648Sgblack@eecs.umich.edu case 0xF0: 1125648Sgblack@eecs.umich.edu regNum = APIC_SPURIOUS_INTERRUPT_VECTOR; 1135648Sgblack@eecs.umich.edu break; 1145648Sgblack@eecs.umich.edu case 0x100: 1155648Sgblack@eecs.umich.edu case 0x108: 1165648Sgblack@eecs.umich.edu case 0x110: 1175648Sgblack@eecs.umich.edu case 0x118: 1185648Sgblack@eecs.umich.edu case 0x120: 1195648Sgblack@eecs.umich.edu case 0x128: 1205648Sgblack@eecs.umich.edu case 0x130: 1215648Sgblack@eecs.umich.edu case 0x138: 1225648Sgblack@eecs.umich.edu case 0x140: 1235648Sgblack@eecs.umich.edu case 0x148: 1245648Sgblack@eecs.umich.edu case 0x150: 1255648Sgblack@eecs.umich.edu case 0x158: 1265648Sgblack@eecs.umich.edu case 0x160: 1275648Sgblack@eecs.umich.edu case 0x168: 1285648Sgblack@eecs.umich.edu case 0x170: 1295648Sgblack@eecs.umich.edu case 0x178: 1305648Sgblack@eecs.umich.edu regNum = APIC_IN_SERVICE((paddr - 0x100) / 0x8); 1315648Sgblack@eecs.umich.edu break; 1325648Sgblack@eecs.umich.edu case 0x180: 1335648Sgblack@eecs.umich.edu case 0x188: 1345648Sgblack@eecs.umich.edu case 0x190: 1355648Sgblack@eecs.umich.edu case 0x198: 1365648Sgblack@eecs.umich.edu case 0x1A0: 1375648Sgblack@eecs.umich.edu case 0x1A8: 1385648Sgblack@eecs.umich.edu case 0x1B0: 1395648Sgblack@eecs.umich.edu case 0x1B8: 1405648Sgblack@eecs.umich.edu case 0x1C0: 1415648Sgblack@eecs.umich.edu case 0x1C8: 1425648Sgblack@eecs.umich.edu case 0x1D0: 1435648Sgblack@eecs.umich.edu case 0x1D8: 1445648Sgblack@eecs.umich.edu case 0x1E0: 1455648Sgblack@eecs.umich.edu case 0x1E8: 1465648Sgblack@eecs.umich.edu case 0x1F0: 1475648Sgblack@eecs.umich.edu case 0x1F8: 1485648Sgblack@eecs.umich.edu regNum = APIC_TRIGGER_MODE((paddr - 0x180) / 0x8); 1495648Sgblack@eecs.umich.edu break; 1505648Sgblack@eecs.umich.edu case 0x200: 1515648Sgblack@eecs.umich.edu case 0x208: 1525648Sgblack@eecs.umich.edu case 0x210: 1535648Sgblack@eecs.umich.edu case 0x218: 1545648Sgblack@eecs.umich.edu case 0x220: 1555648Sgblack@eecs.umich.edu case 0x228: 1565648Sgblack@eecs.umich.edu case 0x230: 1575648Sgblack@eecs.umich.edu case 0x238: 1585648Sgblack@eecs.umich.edu case 0x240: 1595648Sgblack@eecs.umich.edu case 0x248: 1605648Sgblack@eecs.umich.edu case 0x250: 1615648Sgblack@eecs.umich.edu case 0x258: 1625648Sgblack@eecs.umich.edu case 0x260: 1635648Sgblack@eecs.umich.edu case 0x268: 1645648Sgblack@eecs.umich.edu case 0x270: 1655648Sgblack@eecs.umich.edu case 0x278: 1665648Sgblack@eecs.umich.edu regNum = APIC_INTERRUPT_REQUEST((paddr - 0x200) / 0x8); 1675648Sgblack@eecs.umich.edu break; 1685648Sgblack@eecs.umich.edu case 0x280: 1695648Sgblack@eecs.umich.edu regNum = APIC_ERROR_STATUS; 1705648Sgblack@eecs.umich.edu break; 1715648Sgblack@eecs.umich.edu case 0x300: 1725648Sgblack@eecs.umich.edu regNum = APIC_INTERRUPT_COMMAND_LOW; 1735648Sgblack@eecs.umich.edu break; 1745648Sgblack@eecs.umich.edu case 0x310: 1755648Sgblack@eecs.umich.edu regNum = APIC_INTERRUPT_COMMAND_HIGH; 1765648Sgblack@eecs.umich.edu break; 1775648Sgblack@eecs.umich.edu case 0x320: 1785648Sgblack@eecs.umich.edu regNum = APIC_LVT_TIMER; 1795648Sgblack@eecs.umich.edu break; 1805648Sgblack@eecs.umich.edu case 0x330: 1815648Sgblack@eecs.umich.edu regNum = APIC_LVT_THERMAL_SENSOR; 1825648Sgblack@eecs.umich.edu break; 1835648Sgblack@eecs.umich.edu case 0x340: 1845648Sgblack@eecs.umich.edu regNum = APIC_LVT_PERFORMANCE_MONITORING_COUNTERS; 1855648Sgblack@eecs.umich.edu break; 1865648Sgblack@eecs.umich.edu case 0x350: 1875648Sgblack@eecs.umich.edu regNum = APIC_LVT_LINT0; 1885648Sgblack@eecs.umich.edu break; 1895648Sgblack@eecs.umich.edu case 0x360: 1905648Sgblack@eecs.umich.edu regNum = APIC_LVT_LINT1; 1915648Sgblack@eecs.umich.edu break; 1925648Sgblack@eecs.umich.edu case 0x370: 1935648Sgblack@eecs.umich.edu regNum = APIC_LVT_ERROR; 1945648Sgblack@eecs.umich.edu break; 1955648Sgblack@eecs.umich.edu case 0x380: 1965648Sgblack@eecs.umich.edu regNum = APIC_INITIAL_COUNT; 1975648Sgblack@eecs.umich.edu break; 1985648Sgblack@eecs.umich.edu case 0x390: 1995648Sgblack@eecs.umich.edu regNum = APIC_CURRENT_COUNT; 2005648Sgblack@eecs.umich.edu break; 2015648Sgblack@eecs.umich.edu case 0x3E0: 2025648Sgblack@eecs.umich.edu regNum = APIC_DIVIDE_CONFIGURATION; 2035648Sgblack@eecs.umich.edu break; 2045648Sgblack@eecs.umich.edu default: 2055648Sgblack@eecs.umich.edu // A reserved register field. 2065648Sgblack@eecs.umich.edu panic("Accessed reserved register field %#x.\n", paddr); 2075648Sgblack@eecs.umich.edu break; 2085648Sgblack@eecs.umich.edu } 2095648Sgblack@eecs.umich.edu return regNum; 2105648Sgblack@eecs.umich.edu} 2115648Sgblack@eecs.umich.edu} 2125648Sgblack@eecs.umich.edu 2135648Sgblack@eecs.umich.eduTick 2145648Sgblack@eecs.umich.eduX86ISA::Interrupts::read(PacketPtr pkt) 2155648Sgblack@eecs.umich.edu{ 2165648Sgblack@eecs.umich.edu Addr offset = pkt->getAddr() - pioAddr; 2175648Sgblack@eecs.umich.edu //Make sure we're at least only accessing one register. 2185648Sgblack@eecs.umich.edu if ((offset & ~mask(3)) != ((offset + pkt->getSize()) & ~mask(3))) 2195648Sgblack@eecs.umich.edu panic("Accessed more than one register at a time in the APIC!\n"); 2205648Sgblack@eecs.umich.edu ApicRegIndex reg = decodeAddr(offset); 2215648Sgblack@eecs.umich.edu uint32_t val = htog(readReg(reg)); 2225649Sgblack@eecs.umich.edu DPRINTF(LocalApic, 2235649Sgblack@eecs.umich.edu "Reading Local APIC register %d at offset %#x as %#x.\n", 2245649Sgblack@eecs.umich.edu reg, offset, val); 2255648Sgblack@eecs.umich.edu pkt->setData(((uint8_t *)&val) + (offset & mask(3))); 2265898Sgblack@eecs.umich.edu pkt->makeAtomicResponse(); 2279805Sstever@gmail.com return pioDelay; 2285648Sgblack@eecs.umich.edu} 2295648Sgblack@eecs.umich.edu 2305648Sgblack@eecs.umich.eduTick 2315648Sgblack@eecs.umich.eduX86ISA::Interrupts::write(PacketPtr pkt) 2325648Sgblack@eecs.umich.edu{ 2335648Sgblack@eecs.umich.edu Addr offset = pkt->getAddr() - pioAddr; 2345648Sgblack@eecs.umich.edu //Make sure we're at least only accessing one register. 2355648Sgblack@eecs.umich.edu if ((offset & ~mask(3)) != ((offset + pkt->getSize()) & ~mask(3))) 2365648Sgblack@eecs.umich.edu panic("Accessed more than one register at a time in the APIC!\n"); 2375648Sgblack@eecs.umich.edu ApicRegIndex reg = decodeAddr(offset); 2385648Sgblack@eecs.umich.edu uint32_t val = regs[reg]; 2395648Sgblack@eecs.umich.edu pkt->writeData(((uint8_t *)&val) + (offset & mask(3))); 2405649Sgblack@eecs.umich.edu DPRINTF(LocalApic, 2415649Sgblack@eecs.umich.edu "Writing Local APIC register %d at offset %#x as %#x.\n", 2425649Sgblack@eecs.umich.edu reg, offset, gtoh(val)); 2435648Sgblack@eecs.umich.edu setReg(reg, gtoh(val)); 2445898Sgblack@eecs.umich.edu pkt->makeAtomicResponse(); 2459805Sstever@gmail.com return pioDelay; 2465647Sgblack@eecs.umich.edu} 2475691Sgblack@eecs.umich.eduvoid 2485691Sgblack@eecs.umich.eduX86ISA::Interrupts::requestInterrupt(uint8_t vector, 2495691Sgblack@eecs.umich.edu uint8_t deliveryMode, bool level) 2505691Sgblack@eecs.umich.edu{ 2515691Sgblack@eecs.umich.edu /* 2525691Sgblack@eecs.umich.edu * Fixed and lowest-priority delivery mode interrupts are handled 2535691Sgblack@eecs.umich.edu * using the IRR/ISR registers, checking against the TPR, etc. 2545691Sgblack@eecs.umich.edu * The SMI, NMI, ExtInt, INIT, etc interrupts go straight through. 2555691Sgblack@eecs.umich.edu */ 2565691Sgblack@eecs.umich.edu if (deliveryMode == DeliveryMode::Fixed || 2575691Sgblack@eecs.umich.edu deliveryMode == DeliveryMode::LowestPriority) { 2585691Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Interrupt is an %s.\n", 2595691Sgblack@eecs.umich.edu DeliveryMode::names[deliveryMode]); 2605691Sgblack@eecs.umich.edu // Queue up the interrupt in the IRR. 2615691Sgblack@eecs.umich.edu if (vector > IRRV) 2625691Sgblack@eecs.umich.edu IRRV = vector; 2635691Sgblack@eecs.umich.edu if (!getRegArrayBit(APIC_INTERRUPT_REQUEST_BASE, vector)) { 2645691Sgblack@eecs.umich.edu setRegArrayBit(APIC_INTERRUPT_REQUEST_BASE, vector); 2655691Sgblack@eecs.umich.edu if (level) { 2665691Sgblack@eecs.umich.edu setRegArrayBit(APIC_TRIGGER_MODE_BASE, vector); 2675691Sgblack@eecs.umich.edu } else { 2685691Sgblack@eecs.umich.edu clearRegArrayBit(APIC_TRIGGER_MODE_BASE, vector); 2695691Sgblack@eecs.umich.edu } 2705691Sgblack@eecs.umich.edu } 2715691Sgblack@eecs.umich.edu } else if (!DeliveryMode::isReserved(deliveryMode)) { 2725691Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Interrupt is an %s.\n", 2735691Sgblack@eecs.umich.edu DeliveryMode::names[deliveryMode]); 2745691Sgblack@eecs.umich.edu if (deliveryMode == DeliveryMode::SMI && !pendingSmi) { 2755691Sgblack@eecs.umich.edu pendingUnmaskableInt = pendingSmi = true; 2765691Sgblack@eecs.umich.edu smiVector = vector; 2775691Sgblack@eecs.umich.edu } else if (deliveryMode == DeliveryMode::NMI && !pendingNmi) { 2785691Sgblack@eecs.umich.edu pendingUnmaskableInt = pendingNmi = true; 2795691Sgblack@eecs.umich.edu nmiVector = vector; 2805691Sgblack@eecs.umich.edu } else if (deliveryMode == DeliveryMode::ExtInt && !pendingExtInt) { 2815691Sgblack@eecs.umich.edu pendingExtInt = true; 2825691Sgblack@eecs.umich.edu extIntVector = vector; 2835691Sgblack@eecs.umich.edu } else if (deliveryMode == DeliveryMode::INIT && !pendingInit) { 2845691Sgblack@eecs.umich.edu pendingUnmaskableInt = pendingInit = true; 2855691Sgblack@eecs.umich.edu initVector = vector; 2866066Sgblack@eecs.umich.edu } else if (deliveryMode == DeliveryMode::SIPI && 2876066Sgblack@eecs.umich.edu !pendingStartup && !startedUp) { 2886050Sgblack@eecs.umich.edu pendingUnmaskableInt = pendingStartup = true; 2896050Sgblack@eecs.umich.edu startupVector = vector; 2905691Sgblack@eecs.umich.edu } 2918745Sgblack@eecs.umich.edu } 2928781Sgblack@eecs.umich.edu if (FullSystem) 2938781Sgblack@eecs.umich.edu cpu->wakeup(); 2945691Sgblack@eecs.umich.edu} 2955647Sgblack@eecs.umich.edu 2966041Sgblack@eecs.umich.edu 2976041Sgblack@eecs.umich.eduvoid 2986041Sgblack@eecs.umich.eduX86ISA::Interrupts::setCPU(BaseCPU * newCPU) 2996041Sgblack@eecs.umich.edu{ 3006136Sgblack@eecs.umich.edu assert(newCPU); 3016136Sgblack@eecs.umich.edu if (cpu != NULL && cpu->cpuId() != newCPU->cpuId()) { 3026136Sgblack@eecs.umich.edu panic("Local APICs can't be moved between CPUs" 3036136Sgblack@eecs.umich.edu " with different IDs.\n"); 3046136Sgblack@eecs.umich.edu } 3056041Sgblack@eecs.umich.edu cpu = newCPU; 3066136Sgblack@eecs.umich.edu initialApicId = cpu->cpuId(); 3076136Sgblack@eecs.umich.edu regs[APIC_ID] = (initialApicId << 24); 3089090Sandreas.hansson@arm.com pioAddr = x86LocalAPICAddress(initialApicId, 0); 3096041Sgblack@eecs.umich.edu} 3106041Sgblack@eecs.umich.edu 3116041Sgblack@eecs.umich.edu 3126137Sgblack@eecs.umich.eduvoid 3136137Sgblack@eecs.umich.eduX86ISA::Interrupts::init() 3146137Sgblack@eecs.umich.edu{ 3157913SBrad.Beckmann@amd.com // 3169807Sstever@gmail.com // The local apic must register its address ranges on both its pio 3179807Sstever@gmail.com // port via the basicpiodevice(piodevice) init() function and its 3189807Sstever@gmail.com // int port that it inherited from IntDevice. Note IntDevice is 3199807Sstever@gmail.com // not a SimObject itself. 3207913SBrad.Beckmann@amd.com // 3216137Sgblack@eecs.umich.edu BasicPioDevice::init(); 3229807Sstever@gmail.com IntDevice::init(); 3238922Swilliam.wang@arm.com 3248922Swilliam.wang@arm.com // the slave port has a range so inform the connected master 3258922Swilliam.wang@arm.com intSlavePort.sendRangeChange(); 3266137Sgblack@eecs.umich.edu} 3276137Sgblack@eecs.umich.edu 3286137Sgblack@eecs.umich.edu 3295651Sgblack@eecs.umich.eduTick 3305651Sgblack@eecs.umich.eduX86ISA::Interrupts::recvMessage(PacketPtr pkt) 3315651Sgblack@eecs.umich.edu{ 3326136Sgblack@eecs.umich.edu Addr offset = pkt->getAddr() - x86InterruptAddress(initialApicId, 0); 3335651Sgblack@eecs.umich.edu assert(pkt->cmd == MemCmd::MessageReq); 3345651Sgblack@eecs.umich.edu switch(offset) 3355651Sgblack@eecs.umich.edu { 3365651Sgblack@eecs.umich.edu case 0: 3375654Sgblack@eecs.umich.edu { 3385654Sgblack@eecs.umich.edu TriggerIntMessage message = pkt->get<TriggerIntMessage>(); 3395654Sgblack@eecs.umich.edu DPRINTF(LocalApic, 3405654Sgblack@eecs.umich.edu "Got Trigger Interrupt message with vector %#x.\n", 3415697Snate@binkert.org message.vector); 3425655Sgblack@eecs.umich.edu 3435691Sgblack@eecs.umich.edu requestInterrupt(message.vector, 3445691Sgblack@eecs.umich.edu message.deliveryMode, message.trigger); 3455654Sgblack@eecs.umich.edu } 3465651Sgblack@eecs.umich.edu break; 3475651Sgblack@eecs.umich.edu default: 3485651Sgblack@eecs.umich.edu panic("Local apic got unknown interrupt message at offset %#x.\n", 3495651Sgblack@eecs.umich.edu offset); 3505651Sgblack@eecs.umich.edu break; 3515651Sgblack@eecs.umich.edu } 3526064Sgblack@eecs.umich.edu pkt->makeAtomicResponse(); 3539805Sstever@gmail.com return pioDelay; 3545651Sgblack@eecs.umich.edu} 3555651Sgblack@eecs.umich.edu 3565651Sgblack@eecs.umich.edu 3576065Sgblack@eecs.umich.eduTick 3586065Sgblack@eecs.umich.eduX86ISA::Interrupts::recvResponse(PacketPtr pkt) 3596065Sgblack@eecs.umich.edu{ 3606065Sgblack@eecs.umich.edu assert(!pkt->isError()); 3616065Sgblack@eecs.umich.edu assert(pkt->cmd == MemCmd::MessageResp); 3626069Sgblack@eecs.umich.edu if (--pendingIPIs == 0) { 3636069Sgblack@eecs.umich.edu InterruptCommandRegLow low = regs[APIC_INTERRUPT_COMMAND_LOW]; 3646069Sgblack@eecs.umich.edu // Record that the ICR is now idle. 3656069Sgblack@eecs.umich.edu low.deliveryStatus = 0; 3666069Sgblack@eecs.umich.edu regs[APIC_INTERRUPT_COMMAND_LOW] = low; 3676069Sgblack@eecs.umich.edu } 3686065Sgblack@eecs.umich.edu DPRINTF(LocalApic, "ICR is now idle.\n"); 3696065Sgblack@eecs.umich.edu return 0; 3706065Sgblack@eecs.umich.edu} 3716065Sgblack@eecs.umich.edu 3726065Sgblack@eecs.umich.edu 3738711Sandreas.hansson@arm.comAddrRangeList 3749090Sandreas.hansson@arm.comX86ISA::Interrupts::getIntAddrRange() const 3756041Sgblack@eecs.umich.edu{ 3768711Sandreas.hansson@arm.com AddrRangeList ranges; 3778711Sandreas.hansson@arm.com ranges.push_back(RangeEx(x86InterruptAddress(initialApicId, 0), 3788711Sandreas.hansson@arm.com x86InterruptAddress(initialApicId, 0) + 3798711Sandreas.hansson@arm.com PhysAddrAPICRangeSize)); 3808711Sandreas.hansson@arm.com return ranges; 3816041Sgblack@eecs.umich.edu} 3826041Sgblack@eecs.umich.edu 3836041Sgblack@eecs.umich.edu 3845647Sgblack@eecs.umich.eduuint32_t 3855648Sgblack@eecs.umich.eduX86ISA::Interrupts::readReg(ApicRegIndex reg) 3865647Sgblack@eecs.umich.edu{ 3875647Sgblack@eecs.umich.edu if (reg >= APIC_TRIGGER_MODE(0) && 3885647Sgblack@eecs.umich.edu reg <= APIC_TRIGGER_MODE(15)) { 3895647Sgblack@eecs.umich.edu panic("Local APIC Trigger Mode registers are unimplemented.\n"); 3905647Sgblack@eecs.umich.edu } 3915647Sgblack@eecs.umich.edu switch (reg) { 3925647Sgblack@eecs.umich.edu case APIC_ARBITRATION_PRIORITY: 3935647Sgblack@eecs.umich.edu panic("Local APIC Arbitration Priority register unimplemented.\n"); 3945647Sgblack@eecs.umich.edu break; 3955647Sgblack@eecs.umich.edu case APIC_PROCESSOR_PRIORITY: 3965647Sgblack@eecs.umich.edu panic("Local APIC Processor Priority register unimplemented.\n"); 3975647Sgblack@eecs.umich.edu break; 3985647Sgblack@eecs.umich.edu case APIC_ERROR_STATUS: 3995647Sgblack@eecs.umich.edu regs[APIC_INTERNAL_STATE] &= ~ULL(0x1); 4005647Sgblack@eecs.umich.edu break; 4015647Sgblack@eecs.umich.edu case APIC_CURRENT_COUNT: 4025647Sgblack@eecs.umich.edu { 4035848Sgblack@eecs.umich.edu if (apicTimerEvent.scheduled()) { 4045848Sgblack@eecs.umich.edu // Compute how many m5 ticks happen per count. 4059544Sandreas.hansson@arm.com uint64_t ticksPerCount = clockPeriod() * 4065848Sgblack@eecs.umich.edu divideFromConf(regs[APIC_DIVIDE_CONFIGURATION]); 4075848Sgblack@eecs.umich.edu // Compute how many m5 ticks are left. 4087823Ssteve.reinhardt@amd.com uint64_t val = apicTimerEvent.when() - curTick(); 4095848Sgblack@eecs.umich.edu // Turn that into a count. 4105848Sgblack@eecs.umich.edu val = (val + ticksPerCount - 1) / ticksPerCount; 4115848Sgblack@eecs.umich.edu return val; 4125848Sgblack@eecs.umich.edu } else { 4135848Sgblack@eecs.umich.edu return 0; 4145848Sgblack@eecs.umich.edu } 4155647Sgblack@eecs.umich.edu } 4165647Sgblack@eecs.umich.edu default: 4175647Sgblack@eecs.umich.edu break; 4185647Sgblack@eecs.umich.edu } 4195648Sgblack@eecs.umich.edu return regs[reg]; 4205647Sgblack@eecs.umich.edu} 4215647Sgblack@eecs.umich.edu 4225647Sgblack@eecs.umich.eduvoid 4235648Sgblack@eecs.umich.eduX86ISA::Interrupts::setReg(ApicRegIndex reg, uint32_t val) 4245647Sgblack@eecs.umich.edu{ 4255647Sgblack@eecs.umich.edu uint32_t newVal = val; 4265647Sgblack@eecs.umich.edu if (reg >= APIC_IN_SERVICE(0) && 4275647Sgblack@eecs.umich.edu reg <= APIC_IN_SERVICE(15)) { 4285647Sgblack@eecs.umich.edu panic("Local APIC In-Service registers are unimplemented.\n"); 4295647Sgblack@eecs.umich.edu } 4305647Sgblack@eecs.umich.edu if (reg >= APIC_TRIGGER_MODE(0) && 4315647Sgblack@eecs.umich.edu reg <= APIC_TRIGGER_MODE(15)) { 4325647Sgblack@eecs.umich.edu panic("Local APIC Trigger Mode registers are unimplemented.\n"); 4335647Sgblack@eecs.umich.edu } 4345647Sgblack@eecs.umich.edu if (reg >= APIC_INTERRUPT_REQUEST(0) && 4355647Sgblack@eecs.umich.edu reg <= APIC_INTERRUPT_REQUEST(15)) { 4365647Sgblack@eecs.umich.edu panic("Local APIC Interrupt Request registers " 4375647Sgblack@eecs.umich.edu "are unimplemented.\n"); 4385647Sgblack@eecs.umich.edu } 4395647Sgblack@eecs.umich.edu switch (reg) { 4405647Sgblack@eecs.umich.edu case APIC_ID: 4415647Sgblack@eecs.umich.edu newVal = val & 0xFF; 4425647Sgblack@eecs.umich.edu break; 4435647Sgblack@eecs.umich.edu case APIC_VERSION: 4445647Sgblack@eecs.umich.edu // The Local APIC Version register is read only. 4455647Sgblack@eecs.umich.edu return; 4465647Sgblack@eecs.umich.edu case APIC_TASK_PRIORITY: 4475647Sgblack@eecs.umich.edu newVal = val & 0xFF; 4485647Sgblack@eecs.umich.edu break; 4495647Sgblack@eecs.umich.edu case APIC_ARBITRATION_PRIORITY: 4505647Sgblack@eecs.umich.edu panic("Local APIC Arbitration Priority register unimplemented.\n"); 4515647Sgblack@eecs.umich.edu break; 4525647Sgblack@eecs.umich.edu case APIC_PROCESSOR_PRIORITY: 4535647Sgblack@eecs.umich.edu panic("Local APIC Processor Priority register unimplemented.\n"); 4545647Sgblack@eecs.umich.edu break; 4555647Sgblack@eecs.umich.edu case APIC_EOI: 4565690Sgblack@eecs.umich.edu // Remove the interrupt that just completed from the local apic state. 4575690Sgblack@eecs.umich.edu clearRegArrayBit(APIC_IN_SERVICE_BASE, ISRV); 4585690Sgblack@eecs.umich.edu updateISRV(); 4595690Sgblack@eecs.umich.edu return; 4605647Sgblack@eecs.umich.edu case APIC_LOGICAL_DESTINATION: 4615647Sgblack@eecs.umich.edu newVal = val & 0xFF000000; 4625647Sgblack@eecs.umich.edu break; 4635647Sgblack@eecs.umich.edu case APIC_DESTINATION_FORMAT: 4645647Sgblack@eecs.umich.edu newVal = val | 0x0FFFFFFF; 4655647Sgblack@eecs.umich.edu break; 4665647Sgblack@eecs.umich.edu case APIC_SPURIOUS_INTERRUPT_VECTOR: 4675647Sgblack@eecs.umich.edu regs[APIC_INTERNAL_STATE] &= ~ULL(1 << 1); 4685647Sgblack@eecs.umich.edu regs[APIC_INTERNAL_STATE] |= val & (1 << 8); 4695647Sgblack@eecs.umich.edu if (val & (1 << 9)) 4705647Sgblack@eecs.umich.edu warn("Focus processor checking not implemented.\n"); 4715647Sgblack@eecs.umich.edu break; 4725647Sgblack@eecs.umich.edu case APIC_ERROR_STATUS: 4735647Sgblack@eecs.umich.edu { 4745647Sgblack@eecs.umich.edu if (regs[APIC_INTERNAL_STATE] & 0x1) { 4755647Sgblack@eecs.umich.edu regs[APIC_INTERNAL_STATE] &= ~ULL(0x1); 4765647Sgblack@eecs.umich.edu newVal = 0; 4775647Sgblack@eecs.umich.edu } else { 4785647Sgblack@eecs.umich.edu regs[APIC_INTERNAL_STATE] |= ULL(0x1); 4795647Sgblack@eecs.umich.edu return; 4805647Sgblack@eecs.umich.edu } 4815647Sgblack@eecs.umich.edu 4825647Sgblack@eecs.umich.edu } 4835647Sgblack@eecs.umich.edu break; 4845647Sgblack@eecs.umich.edu case APIC_INTERRUPT_COMMAND_LOW: 4856046Sgblack@eecs.umich.edu { 4866046Sgblack@eecs.umich.edu InterruptCommandRegLow low = regs[APIC_INTERRUPT_COMMAND_LOW]; 4876046Sgblack@eecs.umich.edu // Check if we're already sending an IPI. 4886046Sgblack@eecs.umich.edu if (low.deliveryStatus) { 4896046Sgblack@eecs.umich.edu newVal = low; 4906046Sgblack@eecs.umich.edu break; 4916046Sgblack@eecs.umich.edu } 4926046Sgblack@eecs.umich.edu low = val; 4936046Sgblack@eecs.umich.edu InterruptCommandRegHigh high = regs[APIC_INTERRUPT_COMMAND_HIGH]; 4946712Snate@binkert.org TriggerIntMessage message = 0; 4956046Sgblack@eecs.umich.edu message.destination = high.destination; 4966046Sgblack@eecs.umich.edu message.vector = low.vector; 4976046Sgblack@eecs.umich.edu message.deliveryMode = low.deliveryMode; 4986046Sgblack@eecs.umich.edu message.destMode = low.destMode; 4996046Sgblack@eecs.umich.edu message.level = low.level; 5006046Sgblack@eecs.umich.edu message.trigger = low.trigger; 5016138Sgblack@eecs.umich.edu ApicList apics; 5026138Sgblack@eecs.umich.edu int numContexts = sys->numContexts(); 5036046Sgblack@eecs.umich.edu switch (low.destShorthand) { 5046046Sgblack@eecs.umich.edu case 0: 5056138Sgblack@eecs.umich.edu if (message.deliveryMode == DeliveryMode::LowestPriority) { 5066138Sgblack@eecs.umich.edu panic("Lowest priority delivery mode " 5076138Sgblack@eecs.umich.edu "IPIs aren't implemented.\n"); 5086138Sgblack@eecs.umich.edu } 5096138Sgblack@eecs.umich.edu if (message.destMode == 1) { 5106138Sgblack@eecs.umich.edu int dest = message.destination; 5116138Sgblack@eecs.umich.edu hack_once("Assuming logical destinations are 1 << id.\n"); 5126138Sgblack@eecs.umich.edu for (int i = 0; i < numContexts; i++) { 5136138Sgblack@eecs.umich.edu if (dest & 0x1) 5146138Sgblack@eecs.umich.edu apics.push_back(i); 5156138Sgblack@eecs.umich.edu dest = dest >> 1; 5166138Sgblack@eecs.umich.edu } 5176138Sgblack@eecs.umich.edu } else { 5186138Sgblack@eecs.umich.edu if (message.destination == 0xFF) { 5196138Sgblack@eecs.umich.edu for (int i = 0; i < numContexts; i++) { 5206138Sgblack@eecs.umich.edu if (i == initialApicId) { 5216138Sgblack@eecs.umich.edu requestInterrupt(message.vector, 5226138Sgblack@eecs.umich.edu message.deliveryMode, message.trigger); 5236138Sgblack@eecs.umich.edu } else { 5246138Sgblack@eecs.umich.edu apics.push_back(i); 5256138Sgblack@eecs.umich.edu } 5266138Sgblack@eecs.umich.edu } 5276138Sgblack@eecs.umich.edu } else { 5286138Sgblack@eecs.umich.edu if (message.destination == initialApicId) { 5296138Sgblack@eecs.umich.edu requestInterrupt(message.vector, 5306138Sgblack@eecs.umich.edu message.deliveryMode, message.trigger); 5316138Sgblack@eecs.umich.edu } else { 5326138Sgblack@eecs.umich.edu apics.push_back(message.destination); 5336138Sgblack@eecs.umich.edu } 5346138Sgblack@eecs.umich.edu } 5356138Sgblack@eecs.umich.edu } 5366046Sgblack@eecs.umich.edu break; 5376046Sgblack@eecs.umich.edu case 1: 5386069Sgblack@eecs.umich.edu newVal = val; 5396069Sgblack@eecs.umich.edu requestInterrupt(message.vector, 5406069Sgblack@eecs.umich.edu message.deliveryMode, message.trigger); 5416046Sgblack@eecs.umich.edu break; 5426046Sgblack@eecs.umich.edu case 2: 5436069Sgblack@eecs.umich.edu requestInterrupt(message.vector, 5446069Sgblack@eecs.umich.edu message.deliveryMode, message.trigger); 5456069Sgblack@eecs.umich.edu // Fall through 5466046Sgblack@eecs.umich.edu case 3: 5476069Sgblack@eecs.umich.edu { 5486069Sgblack@eecs.umich.edu for (int i = 0; i < numContexts; i++) { 5496138Sgblack@eecs.umich.edu if (i != initialApicId) { 5506138Sgblack@eecs.umich.edu apics.push_back(i); 5516069Sgblack@eecs.umich.edu } 5526069Sgblack@eecs.umich.edu } 5536069Sgblack@eecs.umich.edu } 5546046Sgblack@eecs.umich.edu break; 5556046Sgblack@eecs.umich.edu } 55610542Sgabeblack@google.com // Record that an IPI is being sent if one actually is. 55710542Sgabeblack@google.com if (apics.size()) { 55810542Sgabeblack@google.com low.deliveryStatus = 1; 55910542Sgabeblack@google.com pendingIPIs += apics.size(); 56010542Sgabeblack@google.com } 56110542Sgabeblack@google.com regs[APIC_INTERRUPT_COMMAND_LOW] = low; 56210542Sgabeblack@google.com intMasterPort.sendMessage(apics, message, sys->isTimingMode()); 5636138Sgblack@eecs.umich.edu newVal = regs[APIC_INTERRUPT_COMMAND_LOW]; 5646046Sgblack@eecs.umich.edu } 5655647Sgblack@eecs.umich.edu break; 5665647Sgblack@eecs.umich.edu case APIC_LVT_TIMER: 5675647Sgblack@eecs.umich.edu case APIC_LVT_THERMAL_SENSOR: 5685647Sgblack@eecs.umich.edu case APIC_LVT_PERFORMANCE_MONITORING_COUNTERS: 5695647Sgblack@eecs.umich.edu case APIC_LVT_LINT0: 5705647Sgblack@eecs.umich.edu case APIC_LVT_LINT1: 5715647Sgblack@eecs.umich.edu case APIC_LVT_ERROR: 5725647Sgblack@eecs.umich.edu { 5735647Sgblack@eecs.umich.edu uint64_t readOnlyMask = (1 << 12) | (1 << 14); 5745647Sgblack@eecs.umich.edu newVal = (val & ~readOnlyMask) | 5755647Sgblack@eecs.umich.edu (regs[reg] & readOnlyMask); 5765647Sgblack@eecs.umich.edu } 5775647Sgblack@eecs.umich.edu break; 5785647Sgblack@eecs.umich.edu case APIC_INITIAL_COUNT: 5795648Sgblack@eecs.umich.edu { 5805648Sgblack@eecs.umich.edu newVal = bits(val, 31, 0); 5815848Sgblack@eecs.umich.edu // Compute how many timer ticks we're being programmed for. 5825848Sgblack@eecs.umich.edu uint64_t newCount = newVal * 5835848Sgblack@eecs.umich.edu (divideFromConf(regs[APIC_DIVIDE_CONFIGURATION])); 5845648Sgblack@eecs.umich.edu // Schedule on the edge of the next tick plus the new count. 5859544Sandreas.hansson@arm.com Tick offset = curTick() % clockPeriod(); 5865648Sgblack@eecs.umich.edu if (offset) { 5875648Sgblack@eecs.umich.edu reschedule(apicTimerEvent, 5889544Sandreas.hansson@arm.com curTick() + (newCount + 1) * 5899544Sandreas.hansson@arm.com clockPeriod() - offset, true); 5905648Sgblack@eecs.umich.edu } else { 5919623Snilay@cs.wisc.edu if (newCount) 5929623Snilay@cs.wisc.edu reschedule(apicTimerEvent, 5939623Snilay@cs.wisc.edu curTick() + newCount * 5949623Snilay@cs.wisc.edu clockPeriod(), true); 5955648Sgblack@eecs.umich.edu } 5965648Sgblack@eecs.umich.edu } 5975647Sgblack@eecs.umich.edu break; 5985647Sgblack@eecs.umich.edu case APIC_CURRENT_COUNT: 5995647Sgblack@eecs.umich.edu //Local APIC Current Count register is read only. 6005647Sgblack@eecs.umich.edu return; 6015647Sgblack@eecs.umich.edu case APIC_DIVIDE_CONFIGURATION: 6025647Sgblack@eecs.umich.edu newVal = val & 0xB; 6035647Sgblack@eecs.umich.edu break; 6045647Sgblack@eecs.umich.edu default: 6055647Sgblack@eecs.umich.edu break; 6065647Sgblack@eecs.umich.edu } 6075648Sgblack@eecs.umich.edu regs[reg] = newVal; 6085647Sgblack@eecs.umich.edu return; 6095647Sgblack@eecs.umich.edu} 6105647Sgblack@eecs.umich.edu 6116041Sgblack@eecs.umich.edu 6129807Sstever@gmail.comX86ISA::Interrupts::Interrupts(Params * p) 6139808Sstever@gmail.com : BasicPioDevice(p, PageBytes), IntDevice(this, p->int_latency), 6149807Sstever@gmail.com apicTimerEvent(this), 6159807Sstever@gmail.com pendingSmi(false), smiVector(0), 6169807Sstever@gmail.com pendingNmi(false), nmiVector(0), 6179807Sstever@gmail.com pendingExtInt(false), extIntVector(0), 6189807Sstever@gmail.com pendingInit(false), initVector(0), 6199807Sstever@gmail.com pendingStartup(false), startupVector(0), 6209807Sstever@gmail.com startedUp(false), pendingUnmaskableInt(false), 6219807Sstever@gmail.com pendingIPIs(0), cpu(NULL), 6229807Sstever@gmail.com intSlavePort(name() + ".int_slave", this, this) 6236041Sgblack@eecs.umich.edu{ 6246041Sgblack@eecs.umich.edu memset(regs, 0, sizeof(regs)); 6256041Sgblack@eecs.umich.edu //Set the local apic DFR to the flat model. 6266041Sgblack@eecs.umich.edu regs[APIC_DESTINATION_FORMAT] = (uint32_t)(-1); 6276041Sgblack@eecs.umich.edu ISRV = 0; 6286041Sgblack@eecs.umich.edu IRRV = 0; 6296041Sgblack@eecs.umich.edu} 6306041Sgblack@eecs.umich.edu 6316041Sgblack@eecs.umich.edu 6325654Sgblack@eecs.umich.edubool 6335704Snate@binkert.orgX86ISA::Interrupts::checkInterrupts(ThreadContext *tc) const 6345654Sgblack@eecs.umich.edu{ 6355654Sgblack@eecs.umich.edu RFLAGS rflags = tc->readMiscRegNoEffect(MISCREG_RFLAGS); 6365689Sgblack@eecs.umich.edu if (pendingUnmaskableInt) { 6375689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Reported pending unmaskable interrupt.\n"); 6385654Sgblack@eecs.umich.edu return true; 6395689Sgblack@eecs.umich.edu } 6405655Sgblack@eecs.umich.edu if (rflags.intf) { 6415689Sgblack@eecs.umich.edu if (pendingExtInt) { 6425689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Reported pending external interrupt.\n"); 6435655Sgblack@eecs.umich.edu return true; 6445689Sgblack@eecs.umich.edu } 6455655Sgblack@eecs.umich.edu if (IRRV > ISRV && bits(IRRV, 7, 4) > 6465689Sgblack@eecs.umich.edu bits(regs[APIC_TASK_PRIORITY], 7, 4)) { 6475689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Reported pending regular interrupt.\n"); 6485655Sgblack@eecs.umich.edu return true; 6495689Sgblack@eecs.umich.edu } 6505654Sgblack@eecs.umich.edu } 6515654Sgblack@eecs.umich.edu return false; 6525654Sgblack@eecs.umich.edu} 6535654Sgblack@eecs.umich.edu 6549874Sandreas@sandberg.pp.sebool 6559874Sandreas@sandberg.pp.seX86ISA::Interrupts::checkInterruptsRaw() const 6569874Sandreas@sandberg.pp.se{ 6579874Sandreas@sandberg.pp.se return pendingUnmaskableInt || pendingExtInt || 6589874Sandreas@sandberg.pp.se (IRRV > ISRV && bits(IRRV, 7, 4) > 6599874Sandreas@sandberg.pp.se bits(regs[APIC_TASK_PRIORITY], 7, 4)); 6609874Sandreas@sandberg.pp.se} 6619874Sandreas@sandberg.pp.se 6625654Sgblack@eecs.umich.eduFault 6635704Snate@binkert.orgX86ISA::Interrupts::getInterrupt(ThreadContext *tc) 6645654Sgblack@eecs.umich.edu{ 6655704Snate@binkert.org assert(checkInterrupts(tc)); 6665655Sgblack@eecs.umich.edu // These are all probably fairly uncommon, so we'll make them easier to 6675655Sgblack@eecs.umich.edu // check for. 6685655Sgblack@eecs.umich.edu if (pendingUnmaskableInt) { 6695655Sgblack@eecs.umich.edu if (pendingSmi) { 6705689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generated SMI fault object.\n"); 67110474Sandreas.hansson@arm.com return std::make_shared<SystemManagementInterrupt>(); 6725655Sgblack@eecs.umich.edu } else if (pendingNmi) { 6735689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generated NMI fault object.\n"); 67410474Sandreas.hansson@arm.com return std::make_shared<NonMaskableInterrupt>(nmiVector); 6755655Sgblack@eecs.umich.edu } else if (pendingInit) { 6765689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generated INIT fault object.\n"); 67710474Sandreas.hansson@arm.com return std::make_shared<InitInterrupt>(initVector); 6786050Sgblack@eecs.umich.edu } else if (pendingStartup) { 6796050Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generating SIPI fault object.\n"); 68010474Sandreas.hansson@arm.com return std::make_shared<StartupInterrupt>(startupVector); 6815655Sgblack@eecs.umich.edu } else { 6825655Sgblack@eecs.umich.edu panic("pendingUnmaskableInt set, but no unmaskable " 6835655Sgblack@eecs.umich.edu "ints were pending.\n"); 6845655Sgblack@eecs.umich.edu return NoFault; 6855655Sgblack@eecs.umich.edu } 6865655Sgblack@eecs.umich.edu } else if (pendingExtInt) { 6875689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generated external interrupt fault object.\n"); 68810474Sandreas.hansson@arm.com return std::make_shared<ExternalInterrupt>(extIntVector); 6895655Sgblack@eecs.umich.edu } else { 6905689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Generated regular interrupt fault object.\n"); 6915655Sgblack@eecs.umich.edu // The only thing left are fixed and lowest priority interrupts. 69210474Sandreas.hansson@arm.com return std::make_shared<ExternalInterrupt>(IRRV); 6935655Sgblack@eecs.umich.edu } 6945654Sgblack@eecs.umich.edu} 6955654Sgblack@eecs.umich.edu 6965654Sgblack@eecs.umich.eduvoid 6975704Snate@binkert.orgX86ISA::Interrupts::updateIntrInfo(ThreadContext *tc) 6985654Sgblack@eecs.umich.edu{ 6995704Snate@binkert.org assert(checkInterrupts(tc)); 7005655Sgblack@eecs.umich.edu if (pendingUnmaskableInt) { 7015655Sgblack@eecs.umich.edu if (pendingSmi) { 7025689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "SMI sent to core.\n"); 7035655Sgblack@eecs.umich.edu pendingSmi = false; 7045655Sgblack@eecs.umich.edu } else if (pendingNmi) { 7055689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "NMI sent to core.\n"); 7065655Sgblack@eecs.umich.edu pendingNmi = false; 7075655Sgblack@eecs.umich.edu } else if (pendingInit) { 7085689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Init sent to core.\n"); 7095655Sgblack@eecs.umich.edu pendingInit = false; 7106066Sgblack@eecs.umich.edu startedUp = false; 7116050Sgblack@eecs.umich.edu } else if (pendingStartup) { 7126050Sgblack@eecs.umich.edu DPRINTF(LocalApic, "SIPI sent to core.\n"); 7136050Sgblack@eecs.umich.edu pendingStartup = false; 7146066Sgblack@eecs.umich.edu startedUp = true; 7155655Sgblack@eecs.umich.edu } 7166050Sgblack@eecs.umich.edu if (!(pendingSmi || pendingNmi || pendingInit || pendingStartup)) 7175655Sgblack@eecs.umich.edu pendingUnmaskableInt = false; 7185655Sgblack@eecs.umich.edu } else if (pendingExtInt) { 7195655Sgblack@eecs.umich.edu pendingExtInt = false; 7205655Sgblack@eecs.umich.edu } else { 7215689Sgblack@eecs.umich.edu DPRINTF(LocalApic, "Interrupt %d sent to core.\n", IRRV); 7225655Sgblack@eecs.umich.edu // Mark the interrupt as "in service". 7235655Sgblack@eecs.umich.edu ISRV = IRRV; 7245655Sgblack@eecs.umich.edu setRegArrayBit(APIC_IN_SERVICE_BASE, ISRV); 7255655Sgblack@eecs.umich.edu // Clear it out of the IRR. 7265655Sgblack@eecs.umich.edu clearRegArrayBit(APIC_INTERRUPT_REQUEST_BASE, IRRV); 7275655Sgblack@eecs.umich.edu updateIRRV(); 7285655Sgblack@eecs.umich.edu } 7295654Sgblack@eecs.umich.edu} 7305654Sgblack@eecs.umich.edu 7317902Shestness@cs.utexas.eduvoid 7327902Shestness@cs.utexas.eduX86ISA::Interrupts::serialize(std::ostream &os) 7337902Shestness@cs.utexas.edu{ 7347902Shestness@cs.utexas.edu SERIALIZE_ARRAY(regs, NUM_APIC_REGS); 7357902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingSmi); 7367902Shestness@cs.utexas.edu SERIALIZE_SCALAR(smiVector); 7377902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingNmi); 7387902Shestness@cs.utexas.edu SERIALIZE_SCALAR(nmiVector); 7397902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingExtInt); 7407902Shestness@cs.utexas.edu SERIALIZE_SCALAR(extIntVector); 7417902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingInit); 7427902Shestness@cs.utexas.edu SERIALIZE_SCALAR(initVector); 7437902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingStartup); 7447902Shestness@cs.utexas.edu SERIALIZE_SCALAR(startupVector); 7457902Shestness@cs.utexas.edu SERIALIZE_SCALAR(startedUp); 7467902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingUnmaskableInt); 7477902Shestness@cs.utexas.edu SERIALIZE_SCALAR(pendingIPIs); 7487902Shestness@cs.utexas.edu SERIALIZE_SCALAR(IRRV); 7497902Shestness@cs.utexas.edu SERIALIZE_SCALAR(ISRV); 7507902Shestness@cs.utexas.edu bool apicTimerEventScheduled = apicTimerEvent.scheduled(); 7517902Shestness@cs.utexas.edu SERIALIZE_SCALAR(apicTimerEventScheduled); 7527902Shestness@cs.utexas.edu Tick apicTimerEventTick = apicTimerEvent.when(); 7537902Shestness@cs.utexas.edu SERIALIZE_SCALAR(apicTimerEventTick); 7547902Shestness@cs.utexas.edu} 7557902Shestness@cs.utexas.edu 7567902Shestness@cs.utexas.eduvoid 7577902Shestness@cs.utexas.eduX86ISA::Interrupts::unserialize(Checkpoint *cp, const std::string §ion) 7587902Shestness@cs.utexas.edu{ 7597902Shestness@cs.utexas.edu UNSERIALIZE_ARRAY(regs, NUM_APIC_REGS); 7607902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingSmi); 7617902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(smiVector); 7627902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingNmi); 7637902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(nmiVector); 7647902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingExtInt); 7657902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(extIntVector); 7667902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingInit); 7677902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(initVector); 7687902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingStartup); 7697902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(startupVector); 7707902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(startedUp); 7717902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingUnmaskableInt); 7727902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(pendingIPIs); 7737902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(IRRV); 7747902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(ISRV); 7757902Shestness@cs.utexas.edu bool apicTimerEventScheduled; 7767902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(apicTimerEventScheduled); 7777902Shestness@cs.utexas.edu if (apicTimerEventScheduled) { 7787902Shestness@cs.utexas.edu Tick apicTimerEventTick; 7797902Shestness@cs.utexas.edu UNSERIALIZE_SCALAR(apicTimerEventTick); 7807902Shestness@cs.utexas.edu if (apicTimerEvent.scheduled()) { 7817902Shestness@cs.utexas.edu reschedule(apicTimerEvent, apicTimerEventTick, true); 7827902Shestness@cs.utexas.edu } else { 7837902Shestness@cs.utexas.edu schedule(apicTimerEvent, apicTimerEventTick); 7847902Shestness@cs.utexas.edu } 7857902Shestness@cs.utexas.edu } 7867902Shestness@cs.utexas.edu} 7877902Shestness@cs.utexas.edu 7885647Sgblack@eecs.umich.eduX86ISA::Interrupts * 7895647Sgblack@eecs.umich.eduX86LocalApicParams::create() 7905647Sgblack@eecs.umich.edu{ 7915647Sgblack@eecs.umich.edu return new X86ISA::Interrupts(this); 7925647Sgblack@eecs.umich.edu} 793