1 /* $NetBSD: arm64.h,v 1.2 2018/02/04 17:33:34 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #ifndef _HAVE_ARM64_H 29 #define _HAVE_ARM64_H 30 31 /* 32 * AArch64 Linux kernel image header, as specified in 33 * https://www.kernel.org/doc/Documentation/arm64/booting.txt 34 */ 35 36 /* 64-byte kernel image header */ 37 struct arm64_image_header { 38 uint32_t code0; /* Executable code */ 39 uint32_t code1; /* Executable code */ 40 uint64_t text_offset; /* Image load offset */ 41 uint64_t image_size; /* Effective image size */ 42 uint64_t flags; /* kernel flags */ 43 uint64_t res2; /* reserved */ 44 uint64_t res3; /* reserved */ 45 uint64_t res4; /* reserved */ 46 uint32_t magic; /* Magic number ("ARM\x64") */ 47 uint32_t res5; /* reserved (used for PE COFF offset) */ 48 }; 49 50 /* Kernel flags */ 51 #define ARM64_FLAGS_ENDIAN_BE (1 << 0) 52 #define ARM64_FLAGS_PAGE_SIZE (3 << 1) 53 #define ARM64_FLAGS_PAGE_SIZE_UNSPEC (0 << 1) 54 #define ARM64_FLAGS_PAGE_SIZE_4K (1 << 1) 55 #define ARM64_FLAGS_PAGE_SIZE_16K (2 << 1) 56 #define ARM64_FLAGS_PAGE_SIZE_64K (3 << 1) 57 #define ARM64_FLAGS_PHYS_PLACEMENT (1 << 3) 58 #define ARM64_FLAGS_PHYS_PLACEMENT_DRAM_BASE (0 << 3) 59 #define ARM64_FLAGS_PHYS_PLACEMENT_ANY (1 << 3) 60 61 /* Magic */ 62 #define ARM64_MAGIC 0x644d5241 63 64 /* Executable code. Program relative branch forward 64 bytes. */ 65 #define ARM64_CODE0 0x14000010 66 67 #endif /* !_HAVE_ARM64_H */ 68