sys/rump/librump/rumpkern/arch/i386/rumpcpu.c

   1 /*      $NetBSD: rumpcpu.c,v 1.6 2009/10/15 00:28:47 pooka Exp $        */
   2
   3 /*
   4  * Copyright (c) 2008 Antti Kantee.  All Rights Reserved.
   5  *
   6  * Development of this software was supported by the
   7  * Finnish Cultural Foundation.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  19  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __KERNEL_RCSID(0, "$NetBSD: rumpcpu.c,v 1.6 2009/10/15 00:28:47 pooka Exp $");
  33
  34 #include <sys/param.h>
  35
  36 #include <machine/cpu.h>
  37
  38 #include "rump_private.h"
  39
  40 struct cpu_info *cpu_info_list;
  41
  42 void
  43 rump_cpu_bootstrap(struct cpu_info *ci)
  44 {
  45
  46         cpu_info_list = ci;
  47 }
  48
  49 struct cpu_info *
  50 x86_curcpu()
  51 {
  52
  53         return curlwp->l_cpu;
  54 }
  55
  56 struct lwp *
  57 x86_curlwp()
  58 {
  59
  60         return rumpuser_get_curlwp();
  61 }
  62
  63 void
  64 wbinvd(void)
  65 {
  66
  67         /*
  68          * Used by kobj_machdep().
  69          *
  70          * But, we Best not execute this since we're not Ring0 *.
  71          * Honestly, I don't know why it's required even in the kernel.
  72          */
  73 }