Commit 4c4bf654 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Peter Maydell
Browse files

hw/arm/boot: load DTB as a ROM image 



In order to make the device tree blob (DTB) available in memory not only at
first boot, but also after system reset, use rom_blob_add_fixed() to install
it into memory.

Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 0be969a2

hw/arm/boot.c

+4 −1
Original line number Diff line number Diff line
@@ -396,7 +396,10 @@ static int load_dtb(hwaddr addr, const struct arm_boot_info *binfo) 


    qemu_fdt_dumpdtb(fdt, size);



    cpu_physical_memory_write(addr, fdt, size);

    /* Put the DTB into the memory map as a ROM image: this will ensure

     * the DTB is copied again upon reset, even if addr points into RAM.

     */

    rom_add_blob_fixed("dtb", fdt, size, addr);



    g_free(fdt);