base_cpu.hh

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/*
 * Copyright (c) 2012, 2015 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
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 * modified or unmodified, in source code or in binary form.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
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 * redistributions in binary form must reproduce the above copyright
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 * this software without specific prior written permission.
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#ifndef __ARCH_ARM_KVM_BASE_CPU_HH__
#define __ARCH_ARM_KVM_BASE_CPU_HH__
 
#include <vector>
 
#include "arch/arm/pcstate.hh"
#include "cpu/kvm/base.hh"
#include "dev/arm/base_gic.hh"
 
struct kvm_reg_list;
struct kvm_vcpu_init;
 
namespace gem5
{
 
struct BaseArmKvmCPUParams;
 
class BaseArmKvmCPU : public BaseKvmCPU
{
  public:
    BaseArmKvmCPU(const BaseArmKvmCPUParams &params);
    virtual ~BaseArmKvmCPU();
 
    void startup() override;
 
  protected:
    Tick kvmRun(Tick ticks) override;
 
    void
    stutterPC(PCStateBase &pc) const override
    {
        pc.as<ArmISA::PCState>().setNPC(pc.instAddr());
    }
 
    void ioctlRun() override;
 
    bool irqAsserted;
    bool fiqAsserted;
 
    ArmInterruptPin *virtTimerPin;
 
    uint64_t prevDeviceIRQLevel;
 
  protected:
    typedef std::vector<uint64_t> RegIndexVector;
 
    const RegIndexVector &getRegList() const;
 
    void kvmArmVCpuInit(const kvm_vcpu_init &init);
 
  private:
    std::unique_ptr<kvm_reg_list> tryGetRegList(uint64_t nelem) const;
 
    bool getRegList(kvm_reg_list &regs) const;
 
    mutable RegIndexVector _regIndexList;
};
 
} // namespace gem5
 
#endif // __ARCH_ARM_KVM_BASE_CPU_HH__