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f75caed644
On amd64, add a possibility to activate kernel with staging area in place. Add 'copy_staging' command to control this. For now, by default the old mode of copying kernel to 2M phys is retained. It is going to be changed in several weeks. On amd64, add some slop to the staging area to satisfy both requirements of the kernel startup allocator, and to have space for minor staging data increase after the final size is calculated. Add a new command 'staging_slop' to control its size. Improve staging area resizing, in particular, reallocate it anew if we cannot grow it neither down nor up. Reviewed by: kevans, markj Discussed with: emaste (the delivery plan) Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D31121
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/*-
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* Copyright (c) 2013 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Benno Rice under sponsorship from
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* the FreeBSD Foundation.
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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 _LOADER_EFI_COPY_H_
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#define _LOADER_EFI_COPY_H_
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#include <stand.h>
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#include <readin.h>
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#ifdef __amd64__
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enum {
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COPY_STAGING_ENABLE,
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COPY_STAGING_DISABLE,
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COPY_STAGING_AUTO,
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};
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extern int copy_staging;
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#endif
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int efi_autoload(void);
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int efi_copy_init(void);
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ssize_t efi_copyin(const void *src, vm_offset_t dest, const size_t len);
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ssize_t efi_copyout(const vm_offset_t src, void *dest, const size_t len);
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ssize_t efi_readin(readin_handle_t fd, vm_offset_t dest, const size_t len);
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void * efi_translate(vm_offset_t ptr);
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void efi_copy_finish(void);
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void efi_copy_finish_nop(void);
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#endif /* _LOADER_EFI_COPY_H_ */
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