X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/5d5c5d0d5b79ade9a973d55186ffda2638ba2b6e..3e170ce000f1506b7b5d2c5c7faec85ceabb573d:/osfmk/i386/ktss.c diff --git a/osfmk/i386/ktss.c b/osfmk/i386/ktss.c index 7f15e9217..f5d3118f7 100644 --- a/osfmk/i386/ktss.c +++ b/osfmk/i386/ktss.c @@ -1,31 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ + * @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 - * compliance with the License. The rights granted to you under the - * License may not be used to create, or enable the creation or - * redistribution of, 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, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and + * 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 + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * 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, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * 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_LICENSE_OSREFERENCE_HEADER_END@ + * + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ @@ -63,45 +61,10 @@ * * We don't use the i386 task switch mechanism. We need a TSS * only to hold the kernel stack pointer for the current thread. - * */ #include -#include -#include +#include -struct i386_tss master_ktss - __attribute__ ((section ("__DESC, master_ktss"))) - __attribute__ ((aligned (4096))) = { - 0, /* back link */ - 0, /* esp0 */ - KERNEL_DS, /* ss0 */ - 0, /* esp1 */ - 0, /* ss1 */ - 0, /* esp2 */ - 0, /* ss2 */ - 0, /* cr3 */ - 0, /* eip */ - 0, /* eflags */ - 0, /* eax */ - 0, /* ecx */ - 0, /* edx */ - 0, /* ebx */ - 0, /* esp */ - 0, /* ebp */ - 0, /* esi */ - 0, /* edi */ - 0, /* es */ - 0, /* cs */ - 0, /* ss */ - 0, /* ds */ - 0, /* fs */ - 0, /* gs */ - KERNEL_LDT, /* ldt */ - 0, /* trace_trap */ - 0x0FFF /* IO bitmap offset - - beyond end of TSS segment, - so no bitmap */ -}; /* * The transient stack for sysenter. @@ -113,123 +76,7 @@ struct sysenter_stack master_sstk __attribute__ ((section ("__DESC, master_sstk"))) __attribute__ ((aligned (16))) = { {0}, 0 }; -#ifdef X86_64 struct x86_64_tss master_ktss64 __attribute__ ((aligned (4096))) = { .io_bit_map_offset = 0x0FFF, }; -#endif /* X86_64 */ - - - -/* - * Task structure for double-fault handler: - */ -struct i386_tss master_dftss - __attribute__ ((section ("__DESC, master_dftss"))) - __attribute__ ((aligned (4096))) = { - 0, /* back link */ - (int) &df_task_stack_end - 4, /* esp0 */ - KERNEL_DS, /* ss0 */ - 0, /* esp1 */ - 0, /* ss1 */ - 0, /* esp2 */ - 0, /* ss2 */ - 0, /* cr3 */ - (int) &df_task_start, /* eip */ - 0, /* eflags */ - 0, /* eax */ - 0, /* ecx */ - 0, /* edx */ - 0, /* ebx */ - (int) &df_task_stack_end - 4, /* esp */ - 0, /* ebp */ - 0, /* esi */ - 0, /* edi */ - KERNEL_DS, /* es */ - KERNEL_CS, /* cs */ - KERNEL_DS, /* ss */ - KERNEL_DS, /* ds */ - KERNEL_DS, /* fs */ - CPU_DATA_GS, /* gs */ - KERNEL_LDT, /* ldt */ - 0, /* trace_trap */ - 0x0FFF /* IO bitmap offset - - beyond end of TSS segment, - so no bitmap */ -}; - - -/* - * Task structure for machine_check handler: - */ -struct i386_tss master_mctss - __attribute__ ((section ("__DESC, master_mctss"))) - __attribute__ ((aligned (4096))) = { - 0, /* back link */ - (int) &mc_task_stack_end - 4, /* esp0 */ - KERNEL_DS, /* ss0 */ - 0, /* esp1 */ - 0, /* ss1 */ - 0, /* esp2 */ - 0, /* ss2 */ - 0, /* cr3 */ - (int) &mc_task_start, /* eip */ - 0, /* eflags */ - 0, /* eax */ - 0, /* ecx */ - 0, /* edx */ - 0, /* ebx */ - (int) &mc_task_stack_end - 4, /* esp */ - 0, /* ebp */ - 0, /* esi */ - 0, /* edi */ - KERNEL_DS, /* es */ - KERNEL_CS, /* cs */ - KERNEL_DS, /* ss */ - KERNEL_DS, /* ds */ - KERNEL_DS, /* fs */ - CPU_DATA_GS, /* gs */ - KERNEL_LDT, /* ldt */ - 0, /* trace_trap */ - 0x0FFF /* IO bitmap offset - - beyond end of TSS segment, - so no bitmap */ -}; - -#if MACH_KDB - -struct i386_tss master_dbtss - __attribute__ ((section ("__DESC, master_dbtss"))) - __attribute__ ((aligned (4096))) = { - 0, /* back link */ - 0, /* esp0 */ - KERNEL_DS, /* ss0 */ - 0, /* esp1 */ - 0, /* ss1 */ - 0, /* esp2 */ - 0, /* ss2 */ - 0, /* cr3 */ - 0, /* eip */ - 0, /* eflags */ - 0, /* eax */ - 0, /* ecx */ - 0, /* edx */ - 0, /* ebx */ - 0, /* esp */ - 0, /* ebp */ - 0, /* esi */ - 0, /* edi */ - KERNEL_DS, /* es */ - KERNEL_CS, /* cs */ - KERNEL_DS, /* ss */ - KERNEL_DS, /* ds */ - KERNEL_DS, /* fs */ - KERNEL_DS, /* gs */ - KERNEL_LDT, /* ldt */ - 0, /* trace_trap */ - 0x0FFF /* IO bitmap offset - - beyond end of TSS segment, - so no bitmap */ -}; -#endif /* MACH_KDB */