Subversion Repositories c0or1k

/*

 * Reading of bootdesc forged at build time.

 *

 * Copyright (C) 2007 - 2009 Bahadir Balban

 */

#include <bootdesc.h>

#include <bootm.h>

#include <init.h>

#include <linker.h>

#include L4LIB_INC_ARCH(syslib.h)

extern unsigned long pager_offset;

struct svc_image *bootdesc_get_image_byname(char *name)

{

        for (int i = 0; i < initdata.bootdesc->total_images; i++)

                if (!strncmp(initdata.bootdesc->images[i].name, name, strlen(name)))

                        return &initdata.bootdesc->images[i];

        return 0;

}

void read_boot_params()

{

        int npages = 0;

        struct bootdesc *bootdesc;

        /*

         * End of the executable image is where bootdesc resides

         */

        bootdesc = (struct bootdesc *)__end;

        /* Check if bootdesc is on an unmapped page */

        if (is_page_aligned(bootdesc))

                l4_map_helper(bootdesc - pager_offset, 1);

        /* Allocate bootdesc sized structure */

        initdata.bootdesc = alloc_bootmem(bootdesc->desc_size, 0);

        /* Copy bootdesc to initdata */

        memcpy(initdata.bootdesc, bootdesc,

               bootdesc->desc_size);

        if (npages > 0)

                l4_unmap_helper((void *)page_align_up(__end), npages);

}