gem5  v20.1.0.0
armv8_cpu.hh
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37 
38 #ifndef __ARCH_ARM_KVM_ARMV8_CPU_HH__
39 #define __ARCH_ARM_KVM_ARMV8_CPU_HH__
40 
41 #include <set>
42 #include <vector>
43 
44 #include "arch/arm/intregs.hh"
45 #include "arch/arm/kvm/base_cpu.hh"
46 #include "arch/arm/miscregs.hh"
47 
48 struct ArmV8KvmCPUParams;
49 
79 class ArmV8KvmCPU : public BaseArmKvmCPU
80 {
81  public:
82  ArmV8KvmCPU(ArmV8KvmCPUParams *params);
83  virtual ~ArmV8KvmCPU();
84 
85  void startup() override;
86 
87  void dump() const override;
88 
89  protected:
90  void updateKvmState() override;
91  void updateThreadContext() override;
92 
93  protected:
95  struct IntRegInfo {
96  IntRegInfo(uint64_t _kvm, ArmISA::IntRegIndex _idx, const char *_name)
97  : kvm(_kvm), idx(_idx), name(_name) {}
98 
100  uint64_t kvm;
104  const char *name;
105  };
106 
108  struct MiscRegInfo {
109  MiscRegInfo(uint64_t _kvm, ArmISA::MiscRegIndex _idx,
110  const char *_name, bool _is_device = false)
111  : kvm(_kvm), idx(_idx), name(_name), is_device(_is_device) {}
112 
114  uint64_t kvm;
118  const char *name;
120  bool is_device;
121  };
122 
134 
140  static const std::set<ArmISA::MiscRegIndex> deviceRegSet;
143 
146 };
147 
148 #endif // __ARCH_ARM_KVM_ARMV8_CPU_HH__
ArmV8KvmCPU::miscRegMap
static const std::vector< ArmV8KvmCPU::MiscRegInfo > miscRegMap
Mapping between gem5 misc registers and registers in kvm.
Definition: armv8_cpu.hh:138
ArmV8KvmCPU::MiscRegInfo::MiscRegInfo
MiscRegInfo(uint64_t _kvm, ArmISA::MiscRegIndex _idx, const char *_name, bool _is_device=false)
Definition: armv8_cpu.hh:109
ArmV8KvmCPU::~ArmV8KvmCPU
virtual ~ArmV8KvmCPU()
Definition: armv8_cpu.cc:131
ArmV8KvmCPU::MiscRegInfo::idx
ArmISA::MiscRegIndex idx
Register index in gem5.
Definition: armv8_cpu.hh:116
ArmV8KvmCPU::getSysRegMap
const std::vector< ArmV8KvmCPU::MiscRegInfo > & getSysRegMap() const
Get a map between system registers in kvm and gem5 registers.
Definition: armv8_cpu.cc:359
ArmV8KvmCPU::MiscRegInfo::kvm
uint64_t kvm
Register index in KVM.
Definition: armv8_cpu.hh:114
ArmISA::IntRegIndex
IntRegIndex
Definition: intregs.hh:51
ArmV8KvmCPU
This is an implementation of a KVM-based ARMv8-compatible CPU.
Definition: armv8_cpu.hh:79
base_cpu.hh
std::vector< ArmV8KvmCPU::MiscRegInfo >
ArmV8KvmCPU::miscRegIdMap
static const std::vector< ArmV8KvmCPU::MiscRegInfo > miscRegIdMap
Mapping between gem5 ID misc registers and registers in kvm.
Definition: armv8_cpu.hh:142
ArmV8KvmCPU::updateThreadContext
void updateThreadContext() override
Update the current thread context with the KVM state.
Definition: armv8_cpu.cc:282
ArmV8KvmCPU::MiscRegInfo
Mapping between misc registers in gem5 and registers in KVM.
Definition: armv8_cpu.hh:108
ArmV8KvmCPU::updateKvmState
void updateKvmState() override
Update the KVM state from the current thread context.
Definition: armv8_cpu.cc:216
ArmV8KvmCPU::ArmV8KvmCPU
ArmV8KvmCPU(ArmV8KvmCPUParams *params)
Definition: armv8_cpu.cc:126
intregs.hh
ArmV8KvmCPU::IntRegInfo::idx
ArmISA::IntRegIndex idx
Register index in gem5.
Definition: armv8_cpu.hh:102
ArmV8KvmCPU::dump
void dump() const override
Dump the internal state to the terminal.
Definition: armv8_cpu.cc:149
ArmV8KvmCPU::IntRegInfo::name
const char * name
Name to use in debug dumps.
Definition: armv8_cpu.hh:104
ArmV8KvmCPU::deviceRegSet
static const std::set< ArmISA::MiscRegIndex > deviceRegSet
Device registers (needing "effectful" MiscReg writes)
Definition: armv8_cpu.hh:140
BaseCPU::params
const Params * params() const
Definition: base.hh:296
ArmV8KvmCPU::startup
void startup() override
Definition: armv8_cpu.cc:136
ArmV8KvmCPU::IntRegInfo::IntRegInfo
IntRegInfo(uint64_t _kvm, ArmISA::IntRegIndex _idx, const char *_name)
Definition: armv8_cpu.hh:96
ArmV8KvmCPU::sysRegMap
std::vector< ArmV8KvmCPU::MiscRegInfo > sysRegMap
Cached mapping between system registers in kvm and misc regs in gem5.
Definition: armv8_cpu.hh:145
miscregs.hh
ArmV8KvmCPU::IntRegInfo::kvm
uint64_t kvm
Register index in KVM.
Definition: armv8_cpu.hh:100
ArmV8KvmCPU::MiscRegInfo::name
const char * name
Name to use in debug dumps.
Definition: armv8_cpu.hh:118
ArmISA::MiscRegIndex
MiscRegIndex
Definition: miscregs.hh:56
ArmV8KvmCPU::MiscRegInfo::is_device
bool is_device
is device register? (needs 'effectful' state update)
Definition: armv8_cpu.hh:120
BaseArmKvmCPU
Definition: base_cpu.hh:48
ArmV8KvmCPU::intRegMap
static const std::vector< ArmV8KvmCPU::IntRegInfo > intRegMap
Mapping between gem5 integer registers and integer registers in kvm.
Definition: armv8_cpu.hh:136
ArmV8KvmCPU::IntRegInfo
Mapping between integer registers in gem5 and KVM.
Definition: armv8_cpu.hh:95

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