1*1cd76c75SBen Gras /* $NetBSD: pte.h,v 1.1 2010/07/06 20:50:35 cegger Exp $ */ 2*1cd76c75SBen Gras 3*1cd76c75SBen Gras /* 4*1cd76c75SBen Gras * Copyright (c) 2010 The NetBSD Foundation, Inc. 5*1cd76c75SBen Gras * All rights reserved. 6*1cd76c75SBen Gras * 7*1cd76c75SBen Gras * This code is derived from software contributed to The NetBSD Foundation 8*1cd76c75SBen Gras * by Christoph Egger. 9*1cd76c75SBen Gras * 10*1cd76c75SBen Gras * Redistribution and use in source and binary forms, with or without 11*1cd76c75SBen Gras * modification, are permitted provided that the following conditions 12*1cd76c75SBen Gras * are met: 13*1cd76c75SBen Gras * 1. Redistributions of source code must retain the above copyright 14*1cd76c75SBen Gras * notice, this list of conditions and the following disclaimer. 15*1cd76c75SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 16*1cd76c75SBen Gras * notice, this list of conditions and the following disclaimer in the 17*1cd76c75SBen Gras * documentation and/or other materials provided with the distribution. 18*1cd76c75SBen Gras * 19*1cd76c75SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*1cd76c75SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*1cd76c75SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*1cd76c75SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*1cd76c75SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*1cd76c75SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*1cd76c75SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*1cd76c75SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*1cd76c75SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*1cd76c75SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*1cd76c75SBen Gras * POSSIBILITY OF SUCH DAMAGE. 30*1cd76c75SBen Gras */ 31*1cd76c75SBen Gras 32*1cd76c75SBen Gras #ifndef _X86_PTE_H 33*1cd76c75SBen Gras #define _X86_PTE_H 34*1cd76c75SBen Gras 35*1cd76c75SBen Gras /* Cacheability bits when we are using PAT */ 36*1cd76c75SBen Gras #define PGC_WB 0 /* The default */ 37*1cd76c75SBen Gras #define PGC_WC PG_WT /* WT and CD is WC */ 38*1cd76c75SBen Gras #define PGC_UCMINUS PG_N /* UC but mtrr can override */ 39*1cd76c75SBen Gras #define PGC_UC (PG_WT | PG_N) /* hard UC */ 40*1cd76c75SBen Gras 41*1cd76c75SBen Gras /* 42*1cd76c75SBen Gras * page protection exception bits 43*1cd76c75SBen Gras */ 44*1cd76c75SBen Gras 45*1cd76c75SBen Gras #define PGEX_P 0x01 /* protection violation (vs. no mapping) */ 46*1cd76c75SBen Gras #define PGEX_W 0x02 /* exception during a write cycle */ 47*1cd76c75SBen Gras #define PGEX_U 0x04 /* exception while in user mode (upl) */ 48*1cd76c75SBen Gras #define PGEX_X 0x10 /* exception during instruction fetch */ 49*1cd76c75SBen Gras 50*1cd76c75SBen Gras #endif /* _X86_PTE_H */ 51