On Thu, 16 Jul 2020 01:00:21 +0900 Masami Hiramatsu <mhira...@kernel.org> wrote:
> With this change, if the bootloader wants to change some value > in the default bootconfig, it doesn't need to parse the existing > bootconfig, but it can just append the new configs at the tail > of the bootconfig and update the footer (size, checksum and magic > word). I wonder if we should support multiple bootconfigs instead of updating the size/checksum/magic? So the end of the initrd would have: [data][size/checksum/magic][more-data][size/checksum/magic] And the kernel could do the following: 1. read the end of the initrd for bootconfig 2. If found parse the bootconfig data. 3. look at the content before the bootconfig 4. if another bootconfig exists, goto 2. -- Steve
