/* $NetBSD: pte.h,v 1.14 2022/08/19 08:17:32 ryo Exp $ */ /*- * Copyright (c) 2014 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Matt Thomas of 3am Software Foundry. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _AARCH64_PTE_H_ #define _AARCH64_PTE_H_ #ifdef __aarch64__ #ifndef _LOCORE typedef uint64_t pd_entry_t; /* L0(512G) / L1(1G) / L2(2M) table entry */ #ifndef __BSD_PTENTRY_T__ #define __BSD_PTENTRY_T__ typedef uint64_t pt_entry_t; /* L3(4k) table entry */ #define PRIxPTE PRIx64 #endif /* __BSD_PTENTRY_T__ */ #endif /* _LOCORE */ /* * translation table, block, and page descriptors */ #define LX_TBL_NSTABLE __BIT(63) /* inherited next level */ #define LX_TBL_APTABLE __BITS(62,61) /* inherited next level */ #define LX_TBL_APTABLE_NOEFFECT __SHIFTIN(0,LX_TBL_APTABLE) #define LX_TBL_APTABLE_EL0_NOACCESS __SHIFTIN(1,LX_TBL_APTABLE) #define LX_TBL_APTABLE_RO __SHIFTIN(2,LX_TBL_APTABLE) #define LX_TBL_APTABLE_RO_EL0_NOREAD __SHIFTIN(3,LX_TBL_APTABLE) #define LX_TBL_UXNTABLE __BIT(60) /* inherited next level */ #define LX_TBL_PXNTABLE __BIT(59) /* inherited next level */ #define LX_BLKPAG_OS __BITS(58, 55) #define LX_BLKPAG_OS_0 __SHIFTIN(1,LX_BLKPAG_OS) #define LX_BLKPAG_OS_1 __SHIFTIN(2,LX_BLKPAG_OS) #define LX_BLKPAG_OS_2 __SHIFTIN(4,LX_BLKPAG_OS) #define LX_BLKPAG_OS_3 __SHIFTIN(8,LX_BLKPAG_OS) #define LX_BLKPAG_UXN __BIT(54) /* Unprivileged Execute Never */ #define LX_BLKPAG_PXN __BIT(53) /* Privileged Execute Never */ #define LX_BLKPAG_CONTIG __BIT(52) /* Hint of TLB cache */ #define LX_BLKPAG_DBM __BIT(51) /* Dirty Bit Modifier (V8.1) */ #define LX_BLKPAG_GP __BIT(50) /* Guarded Page (V8.5) */ #define LX_TBL_PA __BITS(47, 12) #define LX_BLKPAG_OA __BITS(47, 12) #define LX_BLKPAG_NG __BIT(11) /* Not Global */ #define LX_BLKPAG_AF __BIT(10) /* Access Flag */ #define LX_BLKPAG_SH __BITS(9,8) /* Shareability */ #define LX_BLKPAG_SH_NS __SHIFTIN(0,LX_BLKPAG_SH) /* Non Shareable */ #define LX_BLKPAG_SH_OS __SHIFTIN(2,LX_BLKPAG_SH) /* Outer Shareable */ #define LX_BLKPAG_SH_IS __SHIFTIN(3,LX_BLKPAG_SH) /* Inner Shareable */ #define LX_BLKPAG_AP __BIT(7) #define LX_BLKPAG_AP_RW __SHIFTIN(0,LX_BLKPAG_AP) /* RW */ #define LX_BLKPAG_AP_RO __SHIFTIN(1,LX_BLKPAG_AP) /* RO */ #define LX_BLKPAG_APUSER __BIT(6) #define LX_BLKPAG_NS __BIT(5) #define LX_BLKPAG_ATTR_INDX __BITS(4,2) /* refer MAIR_EL1 attr */ #define LX_BLKPAG_ATTR_INDX_0 __SHIFTIN(0,LX_BLKPAG_ATTR_INDX) #define LX_BLKPAG_ATTR_INDX_1 __SHIFTIN(1,LX_BLKPAG_ATTR_INDX) #define LX_BLKPAG_ATTR_INDX_2 __SHIFTIN(2,LX_BLKPAG_ATTR_INDX) #define LX_BLKPAG_ATTR_INDX_3 __SHIFTIN(3,LX_BLKPAG_ATTR_INDX) #define LX_TYPE __BIT(1) #define LX_TYPE_BLK __SHIFTIN(0, LX_TYPE) #define LX_TYPE_TBL __SHIFTIN(1, LX_TYPE) #define L3_TYPE_PAG __SHIFTIN(1, LX_TYPE) #define LX_VALID __BIT(0) #define L1_BLK_OA __BITS(47, 30) /* 1GB */ #define L2_BLK_OA __BITS(47, 21) /* 2MB */ #define L3_PAG_OA __BITS(47, 12) /* 4KB */ #define AARCH64_MAX_PA __BIT(48) /* L0 table, 512GB/entry * 512 */ #define L0_SHIFT 39 #define L0_ADDR_BITS __BITS(47,39) #define L0_SIZE (1UL << L0_SHIFT) #define L0_OFFSET (L0_SIZE - 1UL) #define L0_FRAME (~L0_OFFSET) /* L0_BLOCK Level 0 doesn't support block translation */ #define L0_TABLE (LX_TYPE_TBL | LX_VALID) /* L1 table, 1GB/entry * 512 */ #define L1_SHIFT 30 #define L1_ADDR_BITS __BITS(38,30) #define L1_SIZE (1UL << L1_SHIFT) #define L1_OFFSET (L1_SIZE - 1UL) #define L1_FRAME (~L1_OFFSET) #define L1_BLOCK (LX_TYPE_BLK | LX_VALID) #define L1_TABLE (LX_TYPE_TBL | LX_VALID) /* L2 table, 2MB/entry * 512 */ #define L2_SHIFT 21 #define L2_ADDR_BITS __BITS(29,21) #define L2_SIZE (1UL << L2_SHIFT) #define L2_OFFSET (L2_SIZE - 1UL) #define L2_FRAME (~L2_OFFSET) #define L2_BLOCK (LX_TYPE_BLK | LX_VALID) #define L2_TABLE (LX_TYPE_TBL | LX_VALID) #define L2_BLOCK_MASK __BITS(47,21) /* L3 table, 4KB/entry * 512 */ #define L3_SHIFT 12 #define L3_ADDR_BITS __BITS(20,12) #define L3_SIZE (1UL << L3_SHIFT) #define L3_OFFSET (L3_SIZE - 1UL) #define L3_FRAME (~L3_OFFSET) #define L3_PAGE (L3_TYPE_PAG | LX_VALID) #define Ln_ENTRIES_SHIFT 9 #define Ln_ENTRIES (1 << Ln_ENTRIES_SHIFT) #define Ln_TABLE_SIZE (8 << Ln_ENTRIES_SHIFT) #elif defined(__arm__) #include #endif /* __aarch64__/__arm__ */ #endif /* _AARCH64_PTE_H_ */