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#include <lib/rd.h>
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#include <lib/rd.h>
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#include <arch/byteorder.h>
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#include <arch/byteorder.h>
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#include <mm/frame.h>
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#include <mm/frame.h>
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#include <sysinfo/sysinfo.h>
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#include <sysinfo/sysinfo.h>
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#include <ddi/ddi.h>
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static parea_t rd_parea;        /**< Physical memory area for rd. */
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int init_rd(rd_header * header, size_t size)
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int init_rd(rd_header * header, size_t size)
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{
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{
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    /* Identify RAM disk */
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    /* Identify RAM disk */
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    if ((header->magic[0] != RD_MAG0) || (header->magic[1] != RD_MAG1) || (header->magic[2] != RD_MAG2) || (header->magic[3] != RD_MAG3))
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    if ((header->magic[0] != RD_MAG0) || (header->magic[1] != RD_MAG1) ||
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        (header->magic[2] != RD_MAG2) || (header->magic[3] != RD_MAG3))
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        return RE_INVALID;
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        return RE_INVALID;
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    /* Identify version */ 
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    /* Identify version */ 
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    if (header->version != RD_VERSION)
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    if (header->version != RD_VERSION)
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        return RE_UNSUPPORTED;
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        return RE_UNSUPPORTED;
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        return RE_INVALID;
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        return RE_INVALID;
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    if ((uint64_t) hsize + dsize > size)
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    if ((uint64_t) hsize + dsize > size)
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        dsize = size - hsize;
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        dsize = size - hsize;
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    rd_parea.pbase = KA2PA((void *) header + hsize);
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    rd_parea.vbase = (uintptr_t) ((void *) header + hsize);
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    rd_parea.frames = SIZE2FRAMES(dsize);
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    rd_parea.cacheable = true;
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    ddi_parea_register(&rd_parea);
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    sysinfo_set_item_val("rd", NULL, true);
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    sysinfo_set_item_val("rd", NULL, true);
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    sysinfo_set_item_val("rd.size", NULL, dsize);
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    sysinfo_set_item_val("rd.size", NULL, dsize);
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    sysinfo_set_item_val("rd.address.physical", NULL, (unative_t) KA2PA((void *) header + hsize));
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    sysinfo_set_item_val("rd.address.physical", NULL, (unative_t)
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        KA2PA((void *) header + hsize));
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    sysinfo_set_item_val("rd.address.color", NULL, (unative_t)
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        PAGE_COLOR((uintptr_t) header + hsize));
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    return RE_OK;
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    return RE_OK;
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}
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}
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/** @}
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/** @}