On Wed, Nov 29, 2023 at 07:59:00PM +0100, Ahmad Fatoum wrote:
Hi,
a few more comments after decompiling the FIT image:
On 29.11.23 18:21, Simon Glass wrote:
- with fsw.add_node('kernel'):
fsw.property_string('description', args.name)fsw.property_string('type', 'kernel_noload')The specification only says no loading done, but doesn't explain what it means for a bootloader to _not_ load an image. Looking into the U-Boot commit b9b50e89d317 ("image: Implement IH_TYPE_KERNEL_NOLOAD") that introduces this, apparently no loading means ignoring load and entry address?
I presume missing load and entry is something older U-Boot versions were unhappy about? Please let me know if the semantics are as I understood, so I can prepare a barebox patch supporting it.
So the matching side for this series in U-Boot is: https://patchwork.ozlabs.org/project/uboot/list/?series=382849&state=*
And in short, for IH_TYPE_KERNEL_NOLOAD we do our best to use it in-place. For decompression we allocate some space to decompress to.