/*      $NetBSD: rump_x86_cpu.c,v 1.5 2022/08/21 10:18:11 riastradh Exp $       */

/*
 * Copyright (c) 2008 Antti Kantee.  All Rights Reserved.
 *
 * Development of this software was supported by the
 * Finnish Cultural Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rump_x86_cpu.c,v 1.5 2022/08/21 10:18:11 riastradh Exp $");

#include <sys/param.h>
#include <sys/kmem.h>

#include <machine/cpu.h>

#include <x86/cpufunc.h>

#include <rump-sys/kern.h>

#include "rump_curlwp.h"

struct cpu_info *cpu_info_list;

void
rump_cpu_attach(struct cpu_info *ci)
{

        if (cpu_info_list == NULL)
                ci->ci_flags |= CPUF_PRIMARY;

        /* XXX: wrong order, but ... */
        ci->ci_next = cpu_info_list;
        cpu_info_list = ci;

        kcpuset_set(kcpuset_attached, cpu_index(ci));
        kcpuset_set(kcpuset_running, cpu_index(ci));
}

struct cpu_info *
x86_curcpu()
{

        return curlwp->l_cpu;
}

struct lwp *
x86_curlwp()
{

        return rump_curlwp_fast();
}

void
wbinvd(void)
{

        /*
         * Used by kobj_machdep().
         *
         * But, we Best not execute this since we're not Ring0 *.
         * Honestly, I don't know why it's required even in the kernel.
         */
}

struct clockframe *
rump_cpu_makeclockframe(void)
{

        return kmem_zalloc(sizeof(struct clockframe), KM_SLEEP);
}