82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
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/*
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* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/**
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* @file
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*
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* Linux bzImage image format
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*
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*/
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#include <errno.h>
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#include <assert.h>
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#include <realmode.h>
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#include <bzimage.h>
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#include <gpxe/uaccess.h>
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#include <gpxe/image.h>
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#include <gpxe/segment.h>
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#include <gpxe/memmap.h>
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#include <gpxe/shutdown.h>
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struct image_type bzimage_image_type __image_type ( PROBE_NORMAL );
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/**
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* Execute bzImage image
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*
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* @v image bzImage image
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* @ret rc Return status code
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*/
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static int bzimage_exec ( struct image *image ) {
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}
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/**
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* Load bzImage image into memory
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*
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* @v image bzImage file
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* @ret rc Return status code
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*/
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int bzimage_load ( struct image *image ) {
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struct bzimage_header bzhdr;
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/* Sanity check */
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if ( image->len < ( BZHDR_OFFSET + sizeof ( bzhdr ) ) ) {
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DBGC ( image, "BZIMAGE %p too short\n", image );
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return -ENOEXEC;
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}
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/* Read and verify header */
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copy_from_user ( &bzhdr, image->data, BZHDR_OFFSET, sizeof ( bzhdr ) );
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if ( bzhdr.header != BZIMAGE_SIGNATURE ) {
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DBGC ( image, "BZIMAGE %p not a bzImage\n", image );
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return -ENOEXEC;
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}
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/* This is a bzImage image, valid or otherwise */
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if ( ! image->type )
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image->type = &bzimage_image_type;
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return 0;
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}
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/** Linux bzImage image type */
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struct image_type bzimage_image_type __image_type ( PROBE_NORMAL ) = {
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.name = "bzImage",
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.load = bzimage_load,
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.exec = bzimage_exec,
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};
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