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| 3 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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| 4 |
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| 5 |
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| 6 | #include <linux/init.h>
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| 7 | #include <linux/memblock.h>
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| 8 | #include <linux/initrd.h>
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| 9 | #include <asm/types.h>
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| 10 | #include <init.h>
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| 11 | #include <os.h>
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| 12 |
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| 13 | #include "um_arch.h"
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| 14 |
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| 15 |
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| 16 | static char *initrd __initdata = NULL;
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| 17 |
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| 18 | int __init read_initrd(void)
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| 19 | {
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| 20 | unsigned long long size;
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| 21 | void *area;
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| 22 |
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| 23 | if (!initrd)
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| 24 | return 0;
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| 25 |
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| 26 | area = uml_load_file(initrd, &size);
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| 27 | if (!area)
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| 28 | return 0;
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| 29 |
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| 30 | initrd_start = (unsigned long) area;
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| 31 | initrd_end = initrd_start + size;
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| 32 | return 0;
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| 33 | }
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| 34 |
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| 35 | static int __init uml_initrd_setup(char *line, int *add)
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| 36 | {
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| 37 | *add = 0;
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| 38 | initrd = line;
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| 39 | return 0;
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| 40 | }
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| 41 |
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| 42 | __uml_setup("initrd=", uml_initrd_setup,
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| 43 | "initrd=<initrd image>\n"
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| 44 | " This is used to boot UML from an initrd image. The argument is the\n"
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| 45 | " name of the file containing the image.\n\n"
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| 46 | );
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