loaders: see if we can specify the acpi RDSP directly to direct booting linux on x64
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Description
does the zero page actually contain the RSDP or i thought linux does the scan at 1MB for the RSDP?
Originally posted by @chris-oo in #3104
The zero page has a field for the RDSP, but we don't use it and rely on the fw scan at 1MB. We should probably see if we can use it.
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Research direction
Start by locating the x64 Linux loader's zero-page construction and the firmware scan at 1MB for the RSDP. Compare how the zero page's RSDP field is represented with the existing boot path, then validate whether direct use works for Linux x64 booting without relying on the firmware scan.
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Assessment
- Tech stack
- linux, rust
- Domain
- operating-systems
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
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