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/*
* Copyright 2021 Google Inc.
*
* 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;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* 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
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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__