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

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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: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Ard Biesheuvel 2014-09-12 14:06:50 +01:00 committed by Peter Maydell
parent 0be969a2d9
commit 4c4bf65474
1 changed files with 4 additions and 1 deletions
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5
hw/arm/boot.c
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@ -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);