89c52f9d59
This entails: - Marking some obvious candidates for __nosanitizeaddress - Similar trap frame markings as amd64, for similar reasons - Shadow map implementation The shadow map implementation is roughly similar to what was done on amd64, with some exceptions. Attempting to use available space at preinit_map_va + PMAP_PREINIT_MAPPING_SIZE (up to the end of that range, as depicted in the physmap) results in odd failures, so we instead search the physmap for free regions that we can carve out, fragmenting the shadow map as necessary to try and fit as much as we need for the initial kernel map. pmap_bootstrap_san() is thus after pmap_bootstrap(), which still included some technically reserved areas of the memory map that needed to be included in the DMAP. The odd failure noted above may be a bug, but I haven't investigated it all that much. Initial work by mhorne with additional fixes from kevans and markj. Reviewed by: andrew, markj Sponsored by: Juniper Networks, Inc. Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D36701
133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)param.h 5.8 (Berkeley) 6/28/91
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PARAM_H_
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#define _MACHINE_PARAM_H_
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/*
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* Machine dependent constants for arm64.
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*/
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#include <machine/_align.h>
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#define STACKALIGNBYTES (16 - 1)
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#define STACKALIGN(p) ((uint64_t)(p) & ~STACKALIGNBYTES)
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#define __PCI_REROUTE_INTERRUPT
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#ifndef MACHINE
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#define MACHINE "arm64"
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#endif
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#ifndef MACHINE_ARCH
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#define MACHINE_ARCH "aarch64"
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#endif
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#ifndef MACHINE_ARCH32
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#define MACHINE_ARCH32 "armv7"
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#endif
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#ifdef SMP
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#ifndef MAXCPU
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#define MAXCPU 256
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#endif
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#else
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#define MAXCPU 1
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#endif
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#ifndef MAXMEMDOM
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#define MAXMEMDOM 8
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#endif
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#define ALIGNBYTES _ALIGNBYTES
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#define ALIGN(p) _ALIGN(p)
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/*
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* ALIGNED_POINTER is a boolean macro that checks whether an address
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* is valid to fetch data elements of type t from on this architecture.
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* This does not reflect the optimal alignment, just the possibility
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* (within reasonable limits).
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*/
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#define ALIGNED_POINTER(p, t) ((((u_long)(p)) & (sizeof(t) - 1)) == 0)
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/*
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* CACHE_LINE_SIZE is the compile-time maximum cache line size for an
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* architecture. It should be used with appropriate caution.
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*/
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#define CACHE_LINE_SHIFT 7
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#define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT)
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#define PAGE_SHIFT_4K 12
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#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
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#define PAGE_SHIFT_16K 14
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#define PAGE_SIZE_16K (1 << PAGE_SHIFT_16K)
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#define PAGE_SHIFT_64K 16
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#define PAGE_SIZE_64K (1 << PAGE_SHIFT_64K)
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#define PAGE_SHIFT PAGE_SHIFT_4K
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#define PAGE_SIZE (1 << PAGE_SHIFT)
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#define PAGE_MASK (PAGE_SIZE - 1)
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#define MAXPAGESIZES 3 /* maximum number of supported page sizes */
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#ifndef KSTACK_PAGES
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#if defined(KASAN) || defined(KMSAN)
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#define KSTACK_PAGES 6
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#else
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#define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */
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#endif
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#endif
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#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
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#define PCPU_PAGES 1
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#ifdef PERTHREAD_SSP
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#define NO_PERTHREAD_SSP __nostackprotector
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#else
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#define NO_PERTHREAD_SSP
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#endif
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/*
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* Mach derived conversion macros
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*/
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#define round_page(x) (((unsigned long)(x) + PAGE_MASK) & ~PAGE_MASK)
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#define trunc_page(x) ((unsigned long)(x) & ~PAGE_MASK)
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#define atop(x) ((unsigned long)(x) >> PAGE_SHIFT)
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#define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT)
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#define arm64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT)
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#define arm64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT)
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#define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024))
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#endif /* !_MACHINE_PARAM_H_ */
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