src/arch/power/se_workload.hh

/*
 * Copyright 2020 Google Inc.
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 * neither the name of the copyright holders nor the names of its
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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#ifndef __ARCH_POWER_SE_WORKLOAD_HH__
#define __ARCH_POWER_SE_WORKLOAD_HH__

#include "arch/power/registers.hh"
#include "params/PowerSEWorkload.hh"
#include "sim/se_workload.hh"
#include "sim/syscall_abi.hh"
#include "sim/syscall_desc.hh"

namespace PowerISA
{

class SEWorkload : public ::SEWorkload
{
  public:
    using Params = PowerSEWorkloadParams;
    SEWorkload(const Params &p) : ::SEWorkload(p) {}

    ::Loader::Arch getArch() const override { return ::Loader::Power; }

    struct SyscallABI : public GenericSyscallABI64
    {
        static const std::vector<int> ArgumentRegs;
    };
};

} // namespace PowerISA

namespace GuestABI
{

template <>
struct Result<PowerISA::SEWorkload::SyscallABI, SyscallReturn>
{
    static void
    store(ThreadContext *tc, const SyscallReturn &ret)
    {
        if (ret.suppressed() || ret.needsRetry())
            return;

        PowerISA::Cr cr = tc->readIntReg(PowerISA::INTREG_CR);
        if (ret.successful()) {
            cr.cr0.so = 0;
        } else {
            cr.cr0.so = 1;
        }
        tc->setIntReg(PowerISA::INTREG_CR, cr);
        tc->setIntReg(PowerISA::ReturnValueReg, ret.encodedValue());
    }
};

} // namespace GuestABI

#endif // __ARCH_POWER_SE_WORKLOAD_HH__