Major Release: CPU

[makubacki]

Top-level tracking issue for the complete set of CPU related work needed for the initial Rust DXE core major release. Includes memory protections such as:

• CpuDxe responsibilities being absorbed into Rust DXE Core
• A design for splitting responsibilities across interface boundaries

Key deliverables:

• Improved exception handling support
• Paging support
• MP support
• Memory attributes support

Note: Core should be agnostic to architecture. Need proper abstractions.

[makubacki]

CPU sub-team, can you please update these issues? @vineelko, @os-d, @cfernald, @kuqin12

[os-d]

Closing this as all sub items are completed.