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Bug #8651

closed

loader: biosmem allocate heap just below 4GB

Added by Toomas Soome about 5 years ago. Updated about 5 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
bootloader
Start date:
2017-09-12
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
External Bug:

Description

The current biosmem code is walking bios smap entries and looking for smap entry just below 4GB line, if there is such entry, its base and size is set for heap base and size. Instead of entry base, we should use last HEAP_MIN (currently 64MB) bytes just below 4GB, to make maximum space for kernel and modules.

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