1/*
2 * Copyright (c) 2019 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2018 Metempsy Technology Consulting
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Jairo Balart
41 */
42
43#ifndef __DEV_ARM_GICV3_CPU_INTERFACE_H__
44#define __DEV_ARM_GICV3_CPU_INTERFACE_H__
45
46#include "arch/arm/isa_device.hh"
47#include "dev/arm/gic_v3.hh"
48
49class Gicv3Distributor;
50class Gicv3Redistributor;
51
52class Gicv3CPUInterface : public ArmISA::BaseISADevice, public Serializable
53{
54 private:
55
56 friend class Gicv3Distributor;
57 friend class Gicv3Redistributor;
58
59 protected:
60
61 Gicv3 * gic;
62 Gicv3Redistributor * redistributor;
63 Gicv3Distributor * distributor;
64 uint32_t cpuId;
65
66 ArmInterruptPin *maintenanceInterrupt;
67
68 BitUnion64(ICC_CTLR_EL1)
69 Bitfield<63, 20> res0_3;
70 Bitfield<19> ExtRange;
71 Bitfield<18> RSS;
72 Bitfield<17, 16> res0_2;
73 Bitfield<15> A3V;
74 Bitfield<14> SEIS;
75 Bitfield<13, 11> IDbits;
76 Bitfield<10, 8> PRIbits;
77 Bitfield<7> res0_1;
78 Bitfield<6> PMHE;
79 Bitfield<5, 2> res0_0;
80 Bitfield<1> EOImode;
81 Bitfield<0> CBPR;
82 EndBitUnion(ICC_CTLR_EL1)
83
84 BitUnion64(ICC_CTLR_EL3)
85 Bitfield<63, 20> res0_2;
86 Bitfield<19> ExtRange;
87 Bitfield<18> RSS;
88 Bitfield<17> nDS;
89 Bitfield<16> res0_1;
90 Bitfield<15> A3V;
91 Bitfield<14> SEIS;
92 Bitfield<13, 11> IDbits;
93 Bitfield<10, 8> PRIbits;
94 Bitfield<7> res0_0;
95 Bitfield<6> PMHE;
96 Bitfield<5> RM;
97 Bitfield<4> EOImode_EL1NS;
98 Bitfield<3> EOImode_EL1S;
99 Bitfield<2> EOImode_EL3;
100 Bitfield<1> CBPR_EL1NS;
101 Bitfield<0> CBPR_EL1S;
102 EndBitUnion(ICC_CTLR_EL3)
103
104 BitUnion64(ICC_IGRPEN0_EL1)
105 Bitfield<63, 1> res0;
106 Bitfield<0> Enable;
107 EndBitUnion(ICC_IGRPEN0_EL1)
108
109 BitUnion64(ICC_IGRPEN1_EL1)
110 Bitfield<63, 1> res0;
111 Bitfield<0> Enable;
112 EndBitUnion(ICC_IGRPEN1_EL1)
113
114 BitUnion64(ICC_IGRPEN1_EL3)
115 Bitfield<63, 2> res0;
116 Bitfield<1> EnableGrp1S;
117 Bitfield<0> EnableGrp1NS;
118 EndBitUnion(ICC_IGRPEN1_EL3)
119
120 BitUnion64(ICC_SRE_EL1)
121 Bitfield<63, 3> res0;
122 Bitfield<2> DIB;
123 Bitfield<1> DFB;
124 Bitfield<0> SRE;
125 EndBitUnion(ICC_SRE_EL1)
126
127 BitUnion64(ICC_SRE_EL2)
128 Bitfield<63, 4> res0;
129 Bitfield<3> Enable;
130 Bitfield<2> DIB;
131 Bitfield<1> DFB;
132 Bitfield<0> SRE;
133 EndBitUnion(ICC_SRE_EL2)
134
135 BitUnion64(ICC_SRE_EL3)
136 Bitfield<63, 4> res0;
137 Bitfield<3> Enable;
138 Bitfield<2> DIB;
139 Bitfield<1> DFB;
140 Bitfield<0> SRE;
141 EndBitUnion(ICC_SRE_EL3)
142
143 static const uint8_t PRIORITY_BITS = 5;
144
145 // Minimum BPR for Secure, or when security not enabled
146 static const uint8_t GIC_MIN_BPR = 2;
147 // Minimum BPR for Nonsecure when security is enabled
148 static const uint8_t GIC_MIN_BPR_NS = GIC_MIN_BPR + 1;
149
150 static const uint8_t VIRTUAL_PRIORITY_BITS = 5;
151 static const uint8_t VIRTUAL_PREEMPTION_BITS = 5;
152 static const uint8_t VIRTUAL_NUM_LIST_REGS = 16;
153
154 static const uint8_t GIC_MIN_VBPR = 7 - VIRTUAL_PREEMPTION_BITS;
155
156 typedef struct {
157 uint32_t intid;
158 uint8_t prio;
159 Gicv3::GroupId group;
160 } hppi_t;
161
162 hppi_t hppi;
163
164 // GIC CPU interface memory mapped control registers (legacy)
165 enum {
166 GICC_CTLR = 0x0000,
167 GICC_PMR = 0x0004,
168 GICC_BPR = 0x0008,
169 GICC_IAR = 0x000C,
170 GICC_EOIR = 0x0010,
171 GICC_RPR = 0x0014,
172 GICC_HPPI = 0x0018,
173 GICC_ABPR = 0x001C,
174 GICC_AIAR = 0x0020,
175 GICC_AEOIR = 0x0024,
176 GICC_AHPPIR = 0x0028,
177 GICC_STATUSR = 0x002C,
178 GICC_IIDR = 0x00FC,
179 };
180
181 static const AddrRange GICC_APR;
182 static const AddrRange GICC_NSAPR;
183
184 // GIC CPU virtual interface memory mapped control registers (legacy)
185 enum {
186 GICH_HCR = 0x0000,
187 GICH_VTR = 0x0004,
188 GICH_VMCR = 0x0008,
189 GICH_MISR = 0x0010,
190 GICH_EISR = 0x0020,
191 GICH_ELRSR = 0x0030,
192 };
193
194 static const AddrRange GICH_APR;
195 static const AddrRange GICH_LR;
196
197 BitUnion64(ICH_HCR_EL2)
198 Bitfield<63, 32> res0_2;
199 Bitfield<31, 27> EOIcount;
200 Bitfield<26, 15> res0_1;
201 Bitfield<14> TDIR;
202 Bitfield<13> TSEI;
203 Bitfield<12> TALL1;
204 Bitfield<11> TALL0;
205 Bitfield<10> TC;
206 Bitfield<9, 8> res0_0;
207 Bitfield<7> VGrp1DIE;
208 Bitfield<6> VGrp1EIE;
209 Bitfield<5> VGrp0DIE;
210 Bitfield<4> VGrp0EIE;
211 Bitfield<3> NPIE;
212 Bitfield<2> LRENPIE;
213 Bitfield<1> UIE;
214 Bitfield<0> En;
215 EndBitUnion(ICH_HCR_EL2)
216
217 BitUnion64(ICH_LR_EL2)
218 Bitfield<63, 62> State;
219 Bitfield<61> HW;
220 Bitfield<60> Group;
221 Bitfield<59, 56> res0_1;
222 Bitfield<55, 48> Priority;
223 Bitfield<47, 45> res0_0;
224 Bitfield<44, 32> pINTID;
225 Bitfield<41> EOI;
226 Bitfield<31, 0> vINTID;
227 EndBitUnion(ICH_LR_EL2)
228
229 static const uint64_t ICH_LR_EL2_STATE_INVALID = 0;
230 static const uint64_t ICH_LR_EL2_STATE_PENDING = 1;
231 static const uint64_t ICH_LR_EL2_STATE_ACTIVE = 2;
232 static const uint64_t ICH_LR_EL2_STATE_ACTIVE_PENDING = 3;
233
234 BitUnion32(ICH_LRC)
235 Bitfield<31, 30> State;
236 Bitfield<29> HW;
237 Bitfield<28> Group;
238 Bitfield<27, 24> res0_1;
239 Bitfield<23, 16> Priority;
240 Bitfield<15, 13> res0_0;
241 Bitfield<12, 0> pINTID;
242 Bitfield<9> EOI;
243 EndBitUnion(ICH_LRC)
244
245 BitUnion64(ICH_MISR_EL2)
246 Bitfield<63, 8> res0;
247 Bitfield<7> VGrp1D;
248 Bitfield<6> VGrp1E;
249 Bitfield<5> VGrp0D;
250 Bitfield<4> VGrp0E;
251 Bitfield<3> NP;
252 Bitfield<2> LRENP;
253 Bitfield<1> U;
254 Bitfield<0> EOI;
255 EndBitUnion(ICH_MISR_EL2)
256
257 BitUnion64(ICH_VMCR_EL2)
258 Bitfield<63, 32> res0_2;
259 Bitfield<31, 24> VPMR;
260 Bitfield<23, 21> VBPR0;
261 Bitfield<20, 18> VBPR1;
262 Bitfield<17, 10> res0_1;
263 Bitfield<9> VEOIM;
264 Bitfield<8, 5> res0_0;
265 Bitfield<4> VCBPR;
266 Bitfield<3> VFIQEn;
267 Bitfield<2> VAckCtl;
268 Bitfield<1> VENG1;
269 Bitfield<0> VENG0;
270 EndBitUnion(ICH_VMCR_EL2)
271
272 BitUnion64(ICH_VTR_EL2)
273 Bitfield<63, 32> res0_1;
274 Bitfield<31, 29> PRIbits;
275 Bitfield<28, 26> PREbits;
276 Bitfield<25, 23> IDbits;
277 Bitfield<22> SEIS;
278 Bitfield<21> A3V;
279 Bitfield<20> res1;
280 Bitfield<19> TDS;
281 Bitfield<18, 5> res0_0;
282 Bitfield<4, 0> ListRegs;
283 EndBitUnion(ICH_VTR_EL2)
284
285 BitUnion64(ICV_CTLR_EL1)
286 Bitfield<63, 19> res0_2;
287 Bitfield<18> RSS;
288 Bitfield<17, 16> res0_1;
289 Bitfield<15> A3V;
290 Bitfield<14> SEIS;
291 Bitfield<13, 11> IDbits;
292 Bitfield<10, 8> PRIbits;
293 Bitfield<7, 2> res0_0;
294 Bitfield<1> EOImode;
295 Bitfield<0> CBPR;
296 EndBitUnion(ICV_CTLR_EL1)
297
298 protected:
299
300 void activateIRQ(uint32_t intid, Gicv3::GroupId group);
301 void generateSGI(RegVal val, Gicv3::GroupId group);
302 int currEL() const;
303 void deactivateIRQ(uint32_t intid, Gicv3::GroupId group);
304 void dropPriority(Gicv3::GroupId group);
305 uint64_t eoiMaintenanceInterruptStatus() const;
306 bool getHCREL2FMO() const;
307 bool getHCREL2IMO() const;
308 uint32_t getHPPIR0() const;
309 uint32_t getHPPIR1() const;
310 int getHPPVILR() const;
311 bool groupEnabled(Gicv3::GroupId group) const;
312 uint32_t groupPriorityMask(Gicv3::GroupId group);
313 bool haveEL(ArmISA::ExceptionLevel el) const;
314 int highestActiveGroup() const;
315 uint8_t highestActivePriority() const;
316 bool hppiCanPreempt();
317 bool hppviCanPreempt(int lrIdx) const;
318 bool inSecureState() const;
319 ArmISA::InterruptTypes intSignalType(Gicv3::GroupId group) const;
320 bool isAA64() const;
321 bool isEL3OrMon() const;
322 bool isEOISplitMode() const;
323 bool isSecureBelowEL3() const;
324 ICH_MISR_EL2 maintenanceInterruptStatus() const;
325 void reset();
326 void serialize(CheckpointOut & cp) const override;
327 void unserialize(CheckpointIn & cp) override;
328 void update();
329 void updateDistributor();
330 void virtualActivateIRQ(uint32_t lrIdx);
331 void virtualDeactivateIRQ(int lrIdx);
332 uint8_t virtualDropPriority();
333 int virtualFindActive(uint32_t intid) const;
334 uint32_t virtualGroupPriorityMask(Gicv3::GroupId group) const;
335 uint8_t virtualHighestActivePriority() const;
336 void virtualIncrementEOICount();
337 bool virtualIsEOISplitMode() const;
338 void virtualUpdate();
| 1/*
2 * Copyright (c) 2019 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2018 Metempsy Technology Consulting
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Jairo Balart
41 */
42
43#ifndef __DEV_ARM_GICV3_CPU_INTERFACE_H__
44#define __DEV_ARM_GICV3_CPU_INTERFACE_H__
45
46#include "arch/arm/isa_device.hh"
47#include "dev/arm/gic_v3.hh"
48
49class Gicv3Distributor;
50class Gicv3Redistributor;
51
52class Gicv3CPUInterface : public ArmISA::BaseISADevice, public Serializable
53{
54 private:
55
56 friend class Gicv3Distributor;
57 friend class Gicv3Redistributor;
58
59 protected:
60
61 Gicv3 * gic;
62 Gicv3Redistributor * redistributor;
63 Gicv3Distributor * distributor;
64 uint32_t cpuId;
65
66 ArmInterruptPin *maintenanceInterrupt;
67
68 BitUnion64(ICC_CTLR_EL1)
69 Bitfield<63, 20> res0_3;
70 Bitfield<19> ExtRange;
71 Bitfield<18> RSS;
72 Bitfield<17, 16> res0_2;
73 Bitfield<15> A3V;
74 Bitfield<14> SEIS;
75 Bitfield<13, 11> IDbits;
76 Bitfield<10, 8> PRIbits;
77 Bitfield<7> res0_1;
78 Bitfield<6> PMHE;
79 Bitfield<5, 2> res0_0;
80 Bitfield<1> EOImode;
81 Bitfield<0> CBPR;
82 EndBitUnion(ICC_CTLR_EL1)
83
84 BitUnion64(ICC_CTLR_EL3)
85 Bitfield<63, 20> res0_2;
86 Bitfield<19> ExtRange;
87 Bitfield<18> RSS;
88 Bitfield<17> nDS;
89 Bitfield<16> res0_1;
90 Bitfield<15> A3V;
91 Bitfield<14> SEIS;
92 Bitfield<13, 11> IDbits;
93 Bitfield<10, 8> PRIbits;
94 Bitfield<7> res0_0;
95 Bitfield<6> PMHE;
96 Bitfield<5> RM;
97 Bitfield<4> EOImode_EL1NS;
98 Bitfield<3> EOImode_EL1S;
99 Bitfield<2> EOImode_EL3;
100 Bitfield<1> CBPR_EL1NS;
101 Bitfield<0> CBPR_EL1S;
102 EndBitUnion(ICC_CTLR_EL3)
103
104 BitUnion64(ICC_IGRPEN0_EL1)
105 Bitfield<63, 1> res0;
106 Bitfield<0> Enable;
107 EndBitUnion(ICC_IGRPEN0_EL1)
108
109 BitUnion64(ICC_IGRPEN1_EL1)
110 Bitfield<63, 1> res0;
111 Bitfield<0> Enable;
112 EndBitUnion(ICC_IGRPEN1_EL1)
113
114 BitUnion64(ICC_IGRPEN1_EL3)
115 Bitfield<63, 2> res0;
116 Bitfield<1> EnableGrp1S;
117 Bitfield<0> EnableGrp1NS;
118 EndBitUnion(ICC_IGRPEN1_EL3)
119
120 BitUnion64(ICC_SRE_EL1)
121 Bitfield<63, 3> res0;
122 Bitfield<2> DIB;
123 Bitfield<1> DFB;
124 Bitfield<0> SRE;
125 EndBitUnion(ICC_SRE_EL1)
126
127 BitUnion64(ICC_SRE_EL2)
128 Bitfield<63, 4> res0;
129 Bitfield<3> Enable;
130 Bitfield<2> DIB;
131 Bitfield<1> DFB;
132 Bitfield<0> SRE;
133 EndBitUnion(ICC_SRE_EL2)
134
135 BitUnion64(ICC_SRE_EL3)
136 Bitfield<63, 4> res0;
137 Bitfield<3> Enable;
138 Bitfield<2> DIB;
139 Bitfield<1> DFB;
140 Bitfield<0> SRE;
141 EndBitUnion(ICC_SRE_EL3)
142
143 static const uint8_t PRIORITY_BITS = 5;
144
145 // Minimum BPR for Secure, or when security not enabled
146 static const uint8_t GIC_MIN_BPR = 2;
147 // Minimum BPR for Nonsecure when security is enabled
148 static const uint8_t GIC_MIN_BPR_NS = GIC_MIN_BPR + 1;
149
150 static const uint8_t VIRTUAL_PRIORITY_BITS = 5;
151 static const uint8_t VIRTUAL_PREEMPTION_BITS = 5;
152 static const uint8_t VIRTUAL_NUM_LIST_REGS = 16;
153
154 static const uint8_t GIC_MIN_VBPR = 7 - VIRTUAL_PREEMPTION_BITS;
155
156 typedef struct {
157 uint32_t intid;
158 uint8_t prio;
159 Gicv3::GroupId group;
160 } hppi_t;
161
162 hppi_t hppi;
163
164 // GIC CPU interface memory mapped control registers (legacy)
165 enum {
166 GICC_CTLR = 0x0000,
167 GICC_PMR = 0x0004,
168 GICC_BPR = 0x0008,
169 GICC_IAR = 0x000C,
170 GICC_EOIR = 0x0010,
171 GICC_RPR = 0x0014,
172 GICC_HPPI = 0x0018,
173 GICC_ABPR = 0x001C,
174 GICC_AIAR = 0x0020,
175 GICC_AEOIR = 0x0024,
176 GICC_AHPPIR = 0x0028,
177 GICC_STATUSR = 0x002C,
178 GICC_IIDR = 0x00FC,
179 };
180
181 static const AddrRange GICC_APR;
182 static const AddrRange GICC_NSAPR;
183
184 // GIC CPU virtual interface memory mapped control registers (legacy)
185 enum {
186 GICH_HCR = 0x0000,
187 GICH_VTR = 0x0004,
188 GICH_VMCR = 0x0008,
189 GICH_MISR = 0x0010,
190 GICH_EISR = 0x0020,
191 GICH_ELRSR = 0x0030,
192 };
193
194 static const AddrRange GICH_APR;
195 static const AddrRange GICH_LR;
196
197 BitUnion64(ICH_HCR_EL2)
198 Bitfield<63, 32> res0_2;
199 Bitfield<31, 27> EOIcount;
200 Bitfield<26, 15> res0_1;
201 Bitfield<14> TDIR;
202 Bitfield<13> TSEI;
203 Bitfield<12> TALL1;
204 Bitfield<11> TALL0;
205 Bitfield<10> TC;
206 Bitfield<9, 8> res0_0;
207 Bitfield<7> VGrp1DIE;
208 Bitfield<6> VGrp1EIE;
209 Bitfield<5> VGrp0DIE;
210 Bitfield<4> VGrp0EIE;
211 Bitfield<3> NPIE;
212 Bitfield<2> LRENPIE;
213 Bitfield<1> UIE;
214 Bitfield<0> En;
215 EndBitUnion(ICH_HCR_EL2)
216
217 BitUnion64(ICH_LR_EL2)
218 Bitfield<63, 62> State;
219 Bitfield<61> HW;
220 Bitfield<60> Group;
221 Bitfield<59, 56> res0_1;
222 Bitfield<55, 48> Priority;
223 Bitfield<47, 45> res0_0;
224 Bitfield<44, 32> pINTID;
225 Bitfield<41> EOI;
226 Bitfield<31, 0> vINTID;
227 EndBitUnion(ICH_LR_EL2)
228
229 static const uint64_t ICH_LR_EL2_STATE_INVALID = 0;
230 static const uint64_t ICH_LR_EL2_STATE_PENDING = 1;
231 static const uint64_t ICH_LR_EL2_STATE_ACTIVE = 2;
232 static const uint64_t ICH_LR_EL2_STATE_ACTIVE_PENDING = 3;
233
234 BitUnion32(ICH_LRC)
235 Bitfield<31, 30> State;
236 Bitfield<29> HW;
237 Bitfield<28> Group;
238 Bitfield<27, 24> res0_1;
239 Bitfield<23, 16> Priority;
240 Bitfield<15, 13> res0_0;
241 Bitfield<12, 0> pINTID;
242 Bitfield<9> EOI;
243 EndBitUnion(ICH_LRC)
244
245 BitUnion64(ICH_MISR_EL2)
246 Bitfield<63, 8> res0;
247 Bitfield<7> VGrp1D;
248 Bitfield<6> VGrp1E;
249 Bitfield<5> VGrp0D;
250 Bitfield<4> VGrp0E;
251 Bitfield<3> NP;
252 Bitfield<2> LRENP;
253 Bitfield<1> U;
254 Bitfield<0> EOI;
255 EndBitUnion(ICH_MISR_EL2)
256
257 BitUnion64(ICH_VMCR_EL2)
258 Bitfield<63, 32> res0_2;
259 Bitfield<31, 24> VPMR;
260 Bitfield<23, 21> VBPR0;
261 Bitfield<20, 18> VBPR1;
262 Bitfield<17, 10> res0_1;
263 Bitfield<9> VEOIM;
264 Bitfield<8, 5> res0_0;
265 Bitfield<4> VCBPR;
266 Bitfield<3> VFIQEn;
267 Bitfield<2> VAckCtl;
268 Bitfield<1> VENG1;
269 Bitfield<0> VENG0;
270 EndBitUnion(ICH_VMCR_EL2)
271
272 BitUnion64(ICH_VTR_EL2)
273 Bitfield<63, 32> res0_1;
274 Bitfield<31, 29> PRIbits;
275 Bitfield<28, 26> PREbits;
276 Bitfield<25, 23> IDbits;
277 Bitfield<22> SEIS;
278 Bitfield<21> A3V;
279 Bitfield<20> res1;
280 Bitfield<19> TDS;
281 Bitfield<18, 5> res0_0;
282 Bitfield<4, 0> ListRegs;
283 EndBitUnion(ICH_VTR_EL2)
284
285 BitUnion64(ICV_CTLR_EL1)
286 Bitfield<63, 19> res0_2;
287 Bitfield<18> RSS;
288 Bitfield<17, 16> res0_1;
289 Bitfield<15> A3V;
290 Bitfield<14> SEIS;
291 Bitfield<13, 11> IDbits;
292 Bitfield<10, 8> PRIbits;
293 Bitfield<7, 2> res0_0;
294 Bitfield<1> EOImode;
295 Bitfield<0> CBPR;
296 EndBitUnion(ICV_CTLR_EL1)
297
298 protected:
299
300 void activateIRQ(uint32_t intid, Gicv3::GroupId group);
301 void generateSGI(RegVal val, Gicv3::GroupId group);
302 int currEL() const;
303 void deactivateIRQ(uint32_t intid, Gicv3::GroupId group);
304 void dropPriority(Gicv3::GroupId group);
305 uint64_t eoiMaintenanceInterruptStatus() const;
306 bool getHCREL2FMO() const;
307 bool getHCREL2IMO() const;
308 uint32_t getHPPIR0() const;
309 uint32_t getHPPIR1() const;
310 int getHPPVILR() const;
311 bool groupEnabled(Gicv3::GroupId group) const;
312 uint32_t groupPriorityMask(Gicv3::GroupId group);
313 bool haveEL(ArmISA::ExceptionLevel el) const;
314 int highestActiveGroup() const;
315 uint8_t highestActivePriority() const;
316 bool hppiCanPreempt();
317 bool hppviCanPreempt(int lrIdx) const;
318 bool inSecureState() const;
319 ArmISA::InterruptTypes intSignalType(Gicv3::GroupId group) const;
320 bool isAA64() const;
321 bool isEL3OrMon() const;
322 bool isEOISplitMode() const;
323 bool isSecureBelowEL3() const;
324 ICH_MISR_EL2 maintenanceInterruptStatus() const;
325 void reset();
326 void serialize(CheckpointOut & cp) const override;
327 void unserialize(CheckpointIn & cp) override;
328 void update();
329 void updateDistributor();
330 void virtualActivateIRQ(uint32_t lrIdx);
331 void virtualDeactivateIRQ(int lrIdx);
332 uint8_t virtualDropPriority();
333 int virtualFindActive(uint32_t intid) const;
334 uint32_t virtualGroupPriorityMask(Gicv3::GroupId group) const;
335 uint8_t virtualHighestActivePriority() const;
336 void virtualIncrementEOICount();
337 bool virtualIsEOISplitMode() const;
338 void virtualUpdate();
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