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47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
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* Reading of bootdesc forged at build time.
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*
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* Copyright (C) 2007 - 2009 Bahadir Balban
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*/
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#include <bootdesc.h>
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#include <bootm.h>
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#include <init.h>
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#include <linker.h>
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#include L4LIB_INC_ARCH(syslib.h)
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extern unsigned long pager_offset;
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struct svc_image *bootdesc_get_image_byname(char *name)
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{
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for (int i = 0; i < initdata.bootdesc->total_images; i++)
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if (!strncmp(initdata.bootdesc->images[i].name, name, strlen(name)))
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return &initdata.bootdesc->images[i];
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return 0;
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}
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void read_boot_params()
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{
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int npages = 0;
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struct bootdesc *bootdesc;
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/*
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* End of the executable image is where bootdesc resides
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*/
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bootdesc = (struct bootdesc *)__end;
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/* Check if bootdesc is on an unmapped page */
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if (is_page_aligned(bootdesc))
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l4_map_helper(bootdesc - pager_offset, 1);
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/* Allocate bootdesc sized structure */
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initdata.bootdesc = alloc_bootmem(bootdesc->desc_size, 0);
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/* Copy bootdesc to initdata */
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memcpy(initdata.bootdesc, bootdesc,
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bootdesc->desc_size);
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if (npages > 0)
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l4_unmap_helper((void *)page_align_up(__end), npages);
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}
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