gic.cc (11839:dd6df2e47c14) | gic.cc (11840:16943209ed85) |
---|---|
1/* | 1/* |
2 * Copyright (c) 2015-2016 ARM Limited | 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 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated --- 19 unchanged lines hidden (view full) --- 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Andreas Sandberg | 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 --- 19 unchanged lines hidden (view full) --- 30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 * Authors: Andreas Sandberg |
38 * Curtis Dunham |
|
38 */ 39 40#include "arch/arm/kvm/gic.hh" 41 42#include <linux/kvm.h> 43 | 39 */ 40 41#include "arch/arm/kvm/gic.hh" 42 43#include <linux/kvm.h> 44 |
45#include "arch/arm/kvm/base_cpu.hh" |
|
44#include "debug/Interrupt.hh" 45#include "params/KvmGic.hh" | 46#include "debug/Interrupt.hh" 47#include "params/KvmGic.hh" |
48#include "params/MuxingKvmGic.hh" |
|
46 47KvmKernelGicV2::KvmKernelGicV2(KvmVM &_vm, Addr cpu_addr, Addr dist_addr, 48 unsigned it_lines) 49 : cpuRange(RangeSize(cpu_addr, KVM_VGIC_V2_CPU_SIZE)), 50 distRange(RangeSize(dist_addr, KVM_VGIC_V2_DIST_SIZE)), 51 vm(_vm), 52 kdev(vm.createDevice(KVM_DEV_TYPE_ARM_VGIC_V2)) 53{ --- 124 unchanged lines hidden (view full) --- 178} 179 180 181KvmGic * 182KvmGicParams::create() 183{ 184 return new KvmGic(this); 185} | 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)) 56{ --- 124 unchanged lines hidden (view full) --- 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, 199 p->it_lines); 200 } 201} 202 203MuxingKvmGic::~MuxingKvmGic() 204{ 205} 206 207void 208MuxingKvmGic::startup() 209{ 210 usingKvm = (kernelGic != nullptr) && validKvmEnvironment(); 211} 212 213void 214MuxingKvmGic::drainResume() 215{ 216 bool use_kvm = (kernelGic != nullptr) && validKvmEnvironment(); 217 if (use_kvm != usingKvm) { 218 if (use_kvm) // from simulation to KVM emulation 219 fromPl390ToKvm(); 220 else // from KVM emulation to simulation 221 fromKvmToPl390(); 222 223 usingKvm = use_kvm; 224 } 225} 226 227void 228MuxingKvmGic::serialize(CheckpointOut &cp) const 229{ 230 if (!usingKvm) 231 return Pl390::serialize(cp); 232 233 panic("Checkpointing unsupported\n"); 234} 235 236void 237MuxingKvmGic::unserialize(CheckpointIn &cp) 238{ 239 if (!usingKvm) 240 return Pl390::unserialize(cp); 241 242 panic("Checkpointing unsupported\n"); 243} 244 245Tick 246MuxingKvmGic::read(PacketPtr pkt) 247{ 248 if (!usingKvm) 249 return Pl390::read(pkt); 250 251 panic("MuxingKvmGic: PIO from gem5 is currently unsupported\n"); 252} 253 254Tick 255MuxingKvmGic::write(PacketPtr pkt) 256{ 257 if (!usingKvm) 258 return Pl390::write(pkt); 259 260 panic("MuxingKvmGic: PIO from gem5 is currently unsupported\n"); 261} 262 263void 264MuxingKvmGic::sendInt(uint32_t num) 265{ 266 if (!usingKvm) 267 return Pl390::sendInt(num); 268 269 DPRINTF(Interrupt, "Set SPI %d\n", num); 270 kernelGic->setSPI(num); 271} 272 273void 274MuxingKvmGic::clearInt(uint32_t num) 275{ 276 if (!usingKvm) 277 return Pl390::clearInt(num); 278 279 DPRINTF(Interrupt, "Clear SPI %d\n", num); 280 kernelGic->clearSPI(num); 281} 282 283void 284MuxingKvmGic::sendPPInt(uint32_t num, uint32_t cpu) 285{ 286 if (!usingKvm) 287 return Pl390::sendPPInt(num, cpu); 288 DPRINTF(Interrupt, "Set PPI %d:%d\n", cpu, num); 289 kernelGic->setPPI(cpu, num); 290} 291 292void 293MuxingKvmGic::clearPPInt(uint32_t num, uint32_t cpu) 294{ 295 if (!usingKvm) 296 return Pl390::clearPPInt(num, cpu); 297 298 DPRINTF(Interrupt, "Clear PPI %d:%d\n", cpu, num); 299 kernelGic->clearPPI(cpu, num); 300} 301 302bool 303MuxingKvmGic::validKvmEnvironment() const 304{ 305 if (system.threadContexts.empty()) 306 return false; 307 308 for (auto tc : system.threadContexts) { 309 if (dynamic_cast<BaseArmKvmCPU*>(tc->getCpuPtr()) == nullptr) { 310 return false; 311 } 312 } 313 return true; 314} 315 316void 317MuxingKvmGic::fromPl390ToKvm() 318{ 319 panic("Gic multiplexing not implemented.\n"); 320} 321 322void 323MuxingKvmGic::fromKvmToPl390() 324{ 325 panic("Gic multiplexing not implemented.\n"); 326} 327 328MuxingKvmGic * 329MuxingKvmGicParams::create() 330{ 331 return new MuxingKvmGic(this); 332} |
|