1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1990-1993, 1999 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/param.h> 31*0Sstevel@tonic-gate #include <sys/thread.h> 32*0Sstevel@tonic-gate #include <sys/cpuvar.h> 33*0Sstevel@tonic-gate #include <sys/machsystm.h> 34*0Sstevel@tonic-gate #include <sys/systm.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * Interrupt another CPU. 38*0Sstevel@tonic-gate * This is useful to make the other CPU go through a trap so that 39*0Sstevel@tonic-gate * it recognizes an address space trap (AST) for preempting a thread. 40*0Sstevel@tonic-gate * 41*0Sstevel@tonic-gate * It is possible to be preempted here and be resumed on the CPU 42*0Sstevel@tonic-gate * being poked, so it isn't an error to poke the current CPU. 43*0Sstevel@tonic-gate * We could check this and still get preempted after the check, so 44*0Sstevel@tonic-gate * we don't bother. 45*0Sstevel@tonic-gate */ 46*0Sstevel@tonic-gate void 47*0Sstevel@tonic-gate poke_cpu(int cpun) 48*0Sstevel@tonic-gate { 49*0Sstevel@tonic-gate /* 50*0Sstevel@tonic-gate * We don't need to receive an ACK from the CPU being poked, 51*0Sstevel@tonic-gate * so just send out a directed interrupt. 52*0Sstevel@tonic-gate */ 53*0Sstevel@tonic-gate if (!panicstr) 54*0Sstevel@tonic-gate send_dirint(cpun, XC_CPUPOKE_PIL); 55*0Sstevel@tonic-gate } 56