huang ying wrote:
>
> My proposal: Use Peter proposed "linked list of struct setup_data"
> style boot protocol as long term goal.
>
> To smooth the transforming process, the following back compatible
> scheme can be taken:
>
> 1. Keep zero page as an informal external boot protocol, and marked it
> as deprecated for external usage.
> 2. Add a magic number to standard boot protocol, which is set by
> bootloader to indicate the new style or old style boot protocol is
> used.
> 3. Add the pointer to "linked list of struct setup_data" to standard
> boot protocol.
> 4. If kernel is booted with correct magic number, the kernel will
> convert "linked list" to zero page, or use "linked list" directly. If
> kernel is booted with incorrect magic number, the kernel will use the
> "zero page" from bootloader or convert "zero page" to "linked list".
>
You're making it needlessly complicated.
-hpa
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