[Rebase & FF] 202405: Basecore Standalone MM Changes

[cfernald]

Description

Cherry-pick and condense standalone MM changes.

cherry-picks: 1f75b27b9a d4dff6b1d9 03d53bb547 57e86944d3 48e90b76ad 271a1a02a6 8254b47663

• [x] Impacts functionality?
• [ ] Impacts security?
• [ ] Breaking change?
• [ ] Includes tests?
• [ ] Includes documentation?

How This Was Tested

N/A

Integration Instructions

N/A

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 13 lines in your changes missing coverage. Please review.

Please upload report for BASE (release/202405@27a2ec1). Learn more about missing BASE report.

Files	Patch %	Lines
MdeModulePkg/Core/PiSmmCore/PiSmmIpl.c	0.00%	13 Missing :warning:

Additional details and impacted files

@@                Coverage Diff                @@
##             release/202405     #924   +/-   ##
=================================================
  Coverage                  ?    0.82%           
=================================================
  Files                     ?     1420           
  Lines                     ?   356371           
  Branches                  ?     4336           
=================================================
  Hits                      ?     2954           
  Misses                    ?   352697           
  Partials                  ?      720           

Flag	Coverage Δ
MdeModulePkg	0.20% <0.00%> (?)
MdePkg	3.30% <ø> (?)
NetworkPkg	0.55% <ø> (?)
UefiCpuPkg	2.90% <ø> (?)

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