1/*
2 * Copyright (c) 2010, 2012-2013, 2015,2017-2018 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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43#include "arch/arm/system.hh"
44
45#include <iostream>
46
47#include "arch/arm/semihosting.hh"
48#include "base/loader/object_file.hh"
49#include "base/loader/symtab.hh"
50#include "cpu/thread_context.hh"
51#include "dev/arm/gic_v3.hh"
52#include "mem/fs_translating_port_proxy.hh"
53#include "mem/physical.hh"
54#include "sim/full_system.hh"
55
56using namespace std;
57using namespace Linux;
58
59ArmSystem::ArmSystem(Params *p)
60 : System(p),
61 bootLoaders(), bootldr(nullptr),
62 _haveSecurity(p->have_security),
63 _haveLPAE(p->have_lpae),
64 _haveVirtualization(p->have_virtualization),
65 _haveCrypto(p->have_crypto),
66 _genericTimer(nullptr),
67 _gic(nullptr),
68 _resetAddr(p->auto_reset_addr ?
69 (kernelEntry & loadAddrMask) + loadAddrOffset :
70 p->reset_addr),
71 _highestELIs64(p->highest_el_is_64),
72 _physAddrRange64(p->phys_addr_range_64),
73 _haveLargeAsid64(p->have_large_asid_64),
74 _m5opRange(p->m5ops_base ?
75 RangeSize(p->m5ops_base, 0x10000) :

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133 // address map being resolved in the interconnect
134
135 // Call the initialisation of the super class
136 System::initState();
137
138 const Params* p = params();
139
140 if (bootldr) {
141 bool isGICv3System = dynamic_cast<Gicv3 *>(getGIC()) != nullptr;
142 bootldr->loadSections(physProxy);
143
144 inform("Using bootloader at address %#x\n", bootldr->entryPoint());
145
146 // Put the address of the boot loader into r7 so we know
147 // where to branch to after the reset fault
148 // All other values needed by the boot loader to know what to do
149 if (!p->flags_addr)
150 fatal("flags_addr must be set with bootloader\n");
151
152 if (!p->gic_cpu_addr && !isGICv3System)
153 fatal("gic_cpu_addr must be set with bootloader\n");
154
155 for (int i = 0; i < threadContexts.size(); i++) {
156 if (!_highestELIs64)
157 threadContexts[i]->setIntReg(3, (kernelEntry & loadAddrMask) +
158 loadAddrOffset);
159 if (!isGICv3System)
160 threadContexts[i]->setIntReg(4, params()->gic_cpu_addr);
161 threadContexts[i]->setIntReg(5, params()->flags_addr);
162 }
163 inform("Using kernel entry physical address at %#x\n",
164 (kernelEntry & loadAddrMask) + loadAddrOffset);
165 } else {
166 // Set the initial PC to be at start of the kernel code
167 if (!_highestELIs64)
168 threadContexts[0]->pcState((kernelEntry & loadAddrMask) +

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