audk/MdeModulePkg/Universal/CapsuleRuntimeDxe
Star Zeng b2d2a7f3f2 MdeModulePkg CapsuleRuntimeDxe: Reduce reserved memory consumption
Reduce reserved memory consumption by page table buffer,
then OS can have more available memory to use.
Take PhysicalAddressBits = 48 and 2MB page granularity as example,
1:1 Virtual to Physical identity mapping page table buffer needs to be
((512 + 1) * 512 + 1) * 4096 = 1075843072 bytes = 0x40201000 bytes.

The code is updated to only allocate 2 pages (1G page enabled) or
6 pages for 4G page table, and 8 extra pages to handles > 4G request
by page fault.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18070 6f19259b-4bc3-4df7-8a09-765794883524
2015-07-27 03:05:13 +00:00
..
X64 MdeModulePkg CapsuleRuntimeDxe: Reduce reserved memory consumption 2015-07-27 03:05:13 +00:00
CapsuleRuntimeDxe.inf MdeModulePkg CapsuleRuntimeDxe: Reduce reserved memory consumption 2015-07-27 03:05:13 +00:00
CapsuleRuntimeDxe.uni MdeModulePkg: Convert non DOS format files to DOS format and remove unused module UNI files. 2014-09-03 08:39:12 +00:00
CapsuleRuntimeDxeExtra.uni MdeModulePkg: INF/DEC file updates to EDK II packages 2014-08-28 06:53:43 +00:00
CapsuleService.c MdeModulePkg/Universal/CapsuleRuntimeDxe: Use safe string functions to refine code. 2015-07-01 08:23:30 +00:00
SaveLongModeContext.c Add capsule > 4GB support. When capsule data is put above 4GB, IA32 PEI transfers to long mode to get capsule data. 2011-09-02 11:34:35 +00:00