1/* $NetBSD: rumpcpu.c,v 1.8 2010/04/27 23:30:30 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 1.8 2010/04/27 23:30:30 pooka Exp $"); 33 34#include <sys/param.h> 35 36#include <machine/cpu.h> 37 38#include "rump_private.h" 39 40struct cpu_info *cpu_info_list; 41 42void 43rump_cpu_attach(struct cpu_info *ci) 44{ 45 46 if (cpu_info_list == NULL) 47 ci->ci_flags |= CPUF_PRIMARY; 48 49 /* XXX: wrong order, but ... */ 50 ci->ci_next = cpu_info_list; 51 cpu_info_list = ci; 52} 53 54struct cpu_info * 55x86_curcpu() 56{ 57 58 return curlwp->l_cpu; 59} 60 61struct lwp * 62x86_curlwp() 63{ 64 65 return rumpuser_get_curlwp(); 66} 67 68void 69wbinvd(void) 70{ 71 72 /* 73 * Used by kobj_machdep(). 74 * 75 * But, we Best not execute this since we're not Ring0 *. 76 * Honestly, I don't know why it's required even in the kernel. 77 */ 78} 79