MdeModulePkg: Optimize PEI Core Migration Algorithm #5966
Closed
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
REF : https://bugzilla.tianocore.org/show_bug.cgi?id=4750
Migrate the FV that doesn't contain the currently executing PEI Core when permanent memory is initialized but PEI Core is still potentially running from faster memory (Tepmorary RAM). This may reduce the time required to migrate FVs to permanent memory. The FV containing PEI Core is migrated after the PEI Core reentry when it is executed from permanent memory.
This may or may not improve performance depending on the behavior of temporary RAM and the actual performance changes must be measured with the feature enabled and disabled.
This migration algorithm is only used for FVs specified in the gEdkiiMigrationInfoGuid HOB and built with flag
FLAGS_FV_MIGRATE_BEFORE_PEI_CORE_REENTRY.
Description
<Include a description of the change and why this change was made.>
<For each item, place an "x" in between
[
and]
if true. Example:[x]
(you can also check items in GitHub UI)><Create the PR as a Draft PR if it is only created to run CI checks.>
<Delete lines in <> tags before creating the PR.>
How This Was Tested
<Describe the test(s) that were run to verify the changes.>
Integration Instructions
<Describe how these changes should be integrated. Use N/A if nothing is required.>