MdeModulePkg PiSmmCore: IPL legacy memory Limits should be removed (Bugzilla Bug 122)

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Bugzilla Bug 122

Date: 2016-09-15T08:25:36+00:00
From: Eugene Cohen <>
To: @lzeng14
CC: jie.b.gao

Last updated: 2017-07-31T21:15:28+00:00

[tianocore-issues]

Comment 495

Date: 2016-09-15 08:25:36 +0000
From: Eugene Cohen <>

• Industry Specification: ---
• Releases to Fix: EDK II Master
• Target OS: ---
• Bugzilla Assignee(s): @lzeng14

As requested by Yao Jiewen, we need to remove the hardcoded legacy memory limits in SMM IPL. The lower 1MB avoidance is a legacy X86 convention and does not apply to ARM or newer x86 architectures.

Please either remove this limit entirely or use an architected means (protocol/library/pcd) to establish prohibited address ranges.

[tianocore-issues]

Comment 519

Date: 2016-09-22 20:30:37 +0000
From: Barton <<jie.b.gao>>

Bug scrub: Assign to module owner

[tianocore-issues]

Comment 2531

Date: 2017-07-31 21:15:28 +0000
From: Jeff Fan <<vanjeff_919>>

We could simply remove the 1MB limitation.