c98013c0b1
This can happen with very large kernels (e.g. ones embedding a root filesystem). The DTB written by OpenSBI/BBL is quite small so this is unlikely to hit important data, but if it does this can result in very confusing and hard-to-debug crashes. Add a KASSERT() and a verbose print to catch this problem with debug kernels. While this will not print any output by default if it fails (that would depend on EARLY_PRINTF), at least the kernel now halts reliably instead of randomly crashing. Reviewed By: mhorne Differential Revision: https://reviews.freebsd.org/D25153
55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
/*-
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* Copyright (c) 2015-2017 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* Portions of this software were developed by SRI International and the
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* University of Cambridge Computer Laboratory under DARPA/AFRL contract
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* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Portions of this software were developed by the University of Cambridge
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* Computer Laboratory as part of the CTSRD Project, with support from the
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* UK Higher Education Innovation Fund (HEIF).
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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 AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_MACHDEP_H_
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#define _MACHINE_MACHDEP_H_
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struct riscv_bootparams {
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vm_offset_t kern_l1pt; /* Kernel L1 base */
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vm_offset_t kern_phys; /* Kernel base (physical) addr */
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vm_offset_t kern_stack;
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vm_offset_t dtbp_virt; /* Device tree blob virtual addr */
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vm_offset_t dtbp_phys; /* Device tree blob physical addr */
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};
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extern vm_paddr_t physmap[PHYS_AVAIL_ENTRIES];
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extern u_int physmap_idx;
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vm_offset_t fake_preload_metadata(struct riscv_bootparams *rbp);
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void initriscv(struct riscv_bootparams *);
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#endif /* _MACHINE_MACHDEP_H_ */
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