1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MEMLIST_H 27 #define _SYS_MEMLIST_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" /* SunOS-4.0 1.7 */ 30 31 /* 32 * Common memlist format, exported by boot. 33 */ 34 35 #include <sys/types.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* 42 * Boot programs of version 4 and greater pass a linked list 43 * of struct memlist to the kernel. 44 */ 45 struct memlist { 46 uint64_t address; /* starting address of memory segment */ 47 uint64_t size; /* size of same */ 48 struct memlist *next; /* link to next list element */ 49 struct memlist *prev; /* link to previous list element */ 50 }; 51 52 extern int address_in_memlist(struct memlist *, uint64_t, size_t); 53 54 /* 55 * phys_install is the pointer to the physical installed memory list 56 * which may change when memory is added or deleted. The functions 57 * memlist_read_lock() and memlist_read_unlock() should be used 58 * to protect reading this list. 59 */ 60 extern struct memlist *phys_install; 61 62 extern pgcnt_t num_phys_pages(); 63 64 #ifdef __cplusplus 65 } 66 #endif 67 68 #endif /* _SYS_MEMLIST_H */ 69