293ab7c941
address space on the amd64 architecture. The amd64 architecture requires kernel code and global variables to reside in the highest 2GB of the 64-bit virtual address space. Thus, KERNBASE cannot change. However, KERNBASE is sometimes used as the start of the kernel virtual address space. Henceforth, VM_MIN_KERNEL_ADDRESS should be used instead. Since KERNBASE and VM_MIN_KERNEL_ADDRESS are still the same address, there should be no visible effect from this change (yet).
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*-
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* Mach Operating System
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* Copyright (c) 1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_STACK_H_
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#define _MACHINE_STACK_H_
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/*
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* Stack trace.
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*/
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#define INKERNEL(va) (((va) >= DMAP_MIN_ADDRESS && (va) < DMAP_MAX_ADDRESS) \
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|| ((va) >= VM_MIN_KERNEL_ADDRESS && (va) < VM_MAX_KERNEL_ADDRESS))
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struct amd64_frame {
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struct amd64_frame *f_frame;
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long f_retaddr;
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long f_arg0;
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};
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#endif /* !_MACHINE_STACK_H_ */
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