gic.cc (11840:16943209ed85) gic.cc (11842:5a766820e739)
1/*
2 * Copyright (c) 2015-2017 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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39 */
40
41#include "arch/arm/kvm/gic.hh"
42
43#include <linux/kvm.h>
44
45#include "arch/arm/kvm/base_cpu.hh"
46#include "debug/Interrupt.hh"
1/*
2 * Copyright (c) 2015-2017 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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39 */
40
41#include "arch/arm/kvm/gic.hh"
42
43#include <linux/kvm.h>
44
45#include "arch/arm/kvm/base_cpu.hh"
46#include "debug/Interrupt.hh"
47#include "params/KvmGic.hh"
48#include "params/MuxingKvmGic.hh"
49
50KvmKernelGicV2::KvmKernelGicV2(KvmVM &_vm, Addr cpu_addr, Addr dist_addr,
51 unsigned it_lines)
52 : cpuRange(RangeSize(cpu_addr, KVM_VGIC_V2_CPU_SIZE)),
53 distRange(RangeSize(dist_addr, KVM_VGIC_V2_DIST_SIZE)),
54 vm(_vm),
55 kdev(vm.createDevice(KVM_DEV_TYPE_ARM_VGIC_V2))

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101 (type << KVM_ARM_IRQ_TYPE_SHIFT) |
102 (vcpu << KVM_ARM_IRQ_VCPU_SHIFT) |
103 (irq << KVM_ARM_IRQ_NUM_SHIFT));
104
105 vm.setIRQLine(line, high);
106}
107
108
47#include "params/MuxingKvmGic.hh"
48
49KvmKernelGicV2::KvmKernelGicV2(KvmVM &_vm, Addr cpu_addr, Addr dist_addr,
50 unsigned it_lines)
51 : cpuRange(RangeSize(cpu_addr, KVM_VGIC_V2_CPU_SIZE)),
52 distRange(RangeSize(dist_addr, KVM_VGIC_V2_DIST_SIZE)),
53 vm(_vm),
54 kdev(vm.createDevice(KVM_DEV_TYPE_ARM_VGIC_V2))

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100 (type << KVM_ARM_IRQ_TYPE_SHIFT) |
101 (vcpu << KVM_ARM_IRQ_VCPU_SHIFT) |
102 (irq << KVM_ARM_IRQ_NUM_SHIFT));
103
104 vm.setIRQLine(line, high);
105}
106
107
109KvmGic::KvmGic(const KvmGicParams *p)
110 : BaseGic(p),
111 system(*p->system),
112 kernelGic(*system.getKvmVM(),
113 p->cpu_addr, p->dist_addr, p->it_lines),
114 addrRanges{kernelGic.distRange, kernelGic.cpuRange}
115{
116}
117
118KvmGic::~KvmGic()
119{
120}
121
122void
123KvmGic::serialize(CheckpointOut &cp) const
124{
125 panic("Checkpointing unsupported\n");
126}
127
128void
129KvmGic::unserialize(CheckpointIn &cp)
130{
131 panic("Checkpointing unsupported\n");
132}
133
134Tick
135KvmGic::read(PacketPtr pkt)
136{
137 panic("KvmGic: PIO from gem5 is currently unsupported\n");
138}
139
140Tick
141KvmGic::write(PacketPtr pkt)
142{
143 panic("KvmGic: PIO from gem5 is currently unsupported\n");
144}
145
146void
147KvmGic::sendInt(uint32_t num)
148{
149 DPRINTF(Interrupt, "Set SPI %d\n", num);
150 kernelGic.setSPI(num);
151}
152
153void
154KvmGic::clearInt(uint32_t num)
155{
156 DPRINTF(Interrupt, "Clear SPI %d\n", num);
157 kernelGic.clearSPI(num);
158}
159
160void
161KvmGic::sendPPInt(uint32_t num, uint32_t cpu)
162{
163 DPRINTF(Interrupt, "Set PPI %d:%d\n", cpu, num);
164 kernelGic.setPPI(cpu, num);
165}
166
167void
168KvmGic::clearPPInt(uint32_t num, uint32_t cpu)
169{
170 DPRINTF(Interrupt, "Clear PPI %d:%d\n", cpu, num);
171 kernelGic.clearPPI(cpu, num);
172}
173
174void
175KvmGic::verifyMemoryMode() const
176{
177 if (!(system.isAtomicMode() && system.bypassCaches())) {
178 fatal("The in-kernel KVM GIC can only be used with KVM CPUs, but the "
179 "current memory mode does not support KVM.\n");
180 }
181}
182
183
184KvmGic *
185KvmGicParams::create()
186{
187 return new KvmGic(this);
188}
189
190
191MuxingKvmGic::MuxingKvmGic(const MuxingKvmGicParams *p)
192 : Pl390(p),
193 system(*p->system),
194 kernelGic(nullptr),
195 usingKvm(false)
196{
197 if (auto vm = system.getKvmVM()) {
198 kernelGic = new KvmKernelGicV2(*vm, p->cpu_addr, p->dist_addr,

--- 134 unchanged lines hidden --- 		108MuxingKvmGic::MuxingKvmGic(const MuxingKvmGicParams *p)
109 : Pl390(p),
110 system(*p->system),
111 kernelGic(nullptr),
112 usingKvm(false)
113{
114 if (auto vm = system.getKvmVM()) {
115 kernelGic = new KvmKernelGicV2(*vm, p->cpu_addr, p->dist_addr,

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