microspecop.hh

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/*
 * Copyright 2021 Google Inc.
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 * 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
 * notice, this list of conditions and the following disclaimer;
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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.
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#ifndef __ARCH_X86_INSTS_MICROSPECOP_HH__
#define __ARCH_X86_INSTS_MICROSPECOP_HH__
 
#include "arch/x86/insts/microop.hh"
#include "cpu/exec_context.hh"
 
namespace gem5
{
 
namespace X86ISA
{
 
class MicroHalt : public InstOperands<X86MicroopBase>
{
  public:
    MicroHalt(ExtMachInst mach_inst, const char *inst_mnem,
            uint64_t set_flags) :
        InstOperands<X86MicroopBase>(mach_inst, "halt", inst_mnem,
                set_flags | (1ULL << StaticInst::IsNonSpeculative) |
                            (1ULL << StaticInst::IsQuiesce),
                No_OpClass, {})
    {}
 
    Fault
    execute(ExecContext *xc, trace::InstRecord *) const override
    {
        xc->tcBase()->suspend();
        return NoFault;
    }
};
 
} // namespace X86ISA
} // namespace gem5
 
#endif //__ARCH_X86_INSTS_MICROSPECOP_HH__