src/arch/x86/bare_metal/workload.cc

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#include "arch/x86/bare_metal/workload.hh"

#include "arch/x86/faults.hh"
#include "arch/x86/pcstate.hh"
#include "cpu/thread_context.hh"
#include "params/X86BareMetalWorkload.hh"
#include "sim/system.hh"

namespace gem5
{

namespace X86ISA
{

BareMetalWorkload::BareMetalWorkload(const Params &p) : Workload(p)
{}

void
BareMetalWorkload::initState()
{
    Workload::initState();

    for (auto *tc: system->threads) {
        X86ISA::InitInterrupt(0).invoke(tc);

        if (tc->contextId() == 0) {
            PCState pc = tc->pcState().as<PCState>();
            // Don't start in the microcode ROM which would halt this CPU.
            pc.upc(0);
            pc.nupc(1);
            tc->pcState(pc);
            tc->activate();
        } else {
            // This is an application processor (AP). It should be initialized
            // to look like only the BIOS POST has run on it and put then put
            // it into a halted state.
            tc->suspend();
        }
    }
}

} // namespace X86ISA

} // namespace gem5