X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/316670eb35587141e969394ae8537d66b9211e80..cb3231590a3c94ab4375e2228bd5e86b0cf1ad7e:/osfmk/i386/gdt.c diff --git a/osfmk/i386/gdt.c b/osfmk/i386/gdt.c index ae40e4f01..c774093a1 100644 --- a/osfmk/i386/gdt.c +++ b/osfmk/i386/gdt.c @@ -1,8 +1,8 @@ /* - * Copyright (c) 2000-2009 Apple Inc. All rights reserved. + * Copyright (c) 2000-2013 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ - * + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in @@ -11,10 +11,10 @@ * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. - * + * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. - * + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -22,35 +22,35 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * + * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* CMU_ENDHIST */ -/* +/* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. - * + * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. - * + * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * + * * Carnegie Mellon requests users of this software to return to - * + * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 - * + * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ @@ -63,54 +63,48 @@ #include struct real_descriptor master_gdt[GDTSZ] -#if __x86_64__ - __attribute__((section("__HIB,__desc"))) -#else - __attribute__((section("__INITGDT,__DATA"))) -#endif - __attribute__((aligned(CPU_CACHE_SIZE))) = { - [SEL_TO_INDEX(KERNEL32_CS)] = MAKE_REAL_DESCRIPTOR( /* kernel 32-bit code */ +__attribute__((section("__HIB,__desc"))) +__attribute__((aligned(PAGE_SIZE))) = { + [SEL_TO_INDEX(KERNEL32_CS)] = MAKE_REAL_DESCRIPTOR( /* kernel 32-bit code */ 0, 0xfffff, - SZ_32|SZ_G, - ACC_P|ACC_PL_K|ACC_CODE_R - ), - [SEL_TO_INDEX(KERNEL_DS)] = MAKE_REAL_DESCRIPTOR( /* kernel data */ + SZ_32 | SZ_G, + ACC_P | ACC_PL_K | ACC_CODE_R + ), + [SEL_TO_INDEX(KERNEL_DS)] = MAKE_REAL_DESCRIPTOR( /* kernel data */ 0, 0xfffff, - SZ_32|SZ_G, - ACC_P|ACC_PL_K|ACC_DATA_W - ), - [SEL_TO_INDEX(KERNEL64_CS)] = MAKE_REAL_DESCRIPTOR( /* kernel 64-bit code */ + SZ_32 | SZ_G, + ACC_P | ACC_PL_K | ACC_DATA_W + ), + [SEL_TO_INDEX(KERNEL64_CS)] = MAKE_REAL_DESCRIPTOR( /* kernel 64-bit code */ 0, 0xfffff, - SZ_64|SZ_G, - ACC_P|ACC_PL_K|ACC_CODE_R - ), - [SEL_TO_INDEX(KERNEL64_SS)] = MAKE_REAL_DESCRIPTOR( /* kernel 64-bit syscall stack */ + SZ_64 | SZ_G, + ACC_P | ACC_PL_K | ACC_CODE_R + ), + [SEL_TO_INDEX(KERNEL64_SS)] = MAKE_REAL_DESCRIPTOR( /* kernel 64-bit syscall stack */ 0, 0xfffff, - SZ_32|SZ_G, - ACC_P|ACC_PL_K|ACC_DATA_W - ), -#ifdef __x86_64__ - [SEL_TO_INDEX(USER_CS)] = MAKE_REAL_DESCRIPTOR( /* 32-bit user code segment */ + SZ_32 | SZ_G, + ACC_P | ACC_PL_K | ACC_DATA_W + ), + [SEL_TO_INDEX(USER_CS)] = MAKE_REAL_DESCRIPTOR( /* 32-bit user code segment */ 0, 0xfffff, - SZ_32|SZ_G, - ACC_P|ACC_PL_U|ACC_CODE_R - ), - [SEL_TO_INDEX(USER_DS)] = MAKE_REAL_DESCRIPTOR( /* 32-bit user data segment */ + SZ_32 | SZ_G, + ACC_P | ACC_PL_U | ACC_CODE_R + ), + [SEL_TO_INDEX(USER_DS)] = MAKE_REAL_DESCRIPTOR( /* 32-bit user data segment */ 0, 0xfffff, - SZ_32|SZ_G, - ACC_P|ACC_PL_U|ACC_DATA_W - ), - [SEL_TO_INDEX(USER64_CS)] = MAKE_REAL_DESCRIPTOR( /* user 64-bit code segment */ + SZ_32 | SZ_G, + ACC_P | ACC_PL_U | ACC_DATA_W + ), + [SEL_TO_INDEX(USER64_CS)] = MAKE_REAL_DESCRIPTOR( /* user 64-bit code segment */ 0, 0xfffff, - SZ_64|SZ_G, - ACC_P|ACC_PL_U|ACC_CODE_R - ), -#endif + SZ_64 | SZ_G, + ACC_P | ACC_PL_U | ACC_CODE_R + ), };