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| author | Star Zeng <star.zeng@intel.com> | 2015-07-27 03:05:13 +0000 |
|---|---|---|
| committer | lzeng14 <lzeng14@Edk2> | 2015-07-27 03:05:13 +0000 |
| commit | b2d2a7f3f2fff5576945881c5c4ee5f293604465 (patch) | |
| tree | 2318b4f4bbf9824ecb5dab7986a384eaa9bfcc17 /MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf | |
| parent | 716087e2becafbac134a2cbd5e7cc6da684adc74 (diff) | |
| download | edk2-b2d2a7f3f2fff5576945881c5c4ee5f293604465.tar.gz edk2-b2d2a7f3f2fff5576945881c5c4ee5f293604465.tar.bz2 edk2-b2d2a7f3f2fff5576945881c5c4ee5f293604465.zip | |
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
Diffstat (limited to 'MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf')
| -rw-r--r-- | MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf index fc4863f15a..7a7a3e3706 100644 --- a/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf +++ b/MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf @@ -4,7 +4,7 @@ # It installs the Capsule Architectural Protocol defined in PI1.0a to signify
# the capsule runtime services are ready.
#
-# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -58,7 +58,6 @@ [LibraryClasses.X64]
UefiLib
BaseMemoryLib
- HobLib
[Guids]
## SOMETIMES_PRODUCES ## Variable:L"CapsuleUpdateData" # (Process across reset capsule image) for capsule updated data
@@ -85,9 +84,6 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdMaxSizePopulateCapsule || gEfiMdeModulePkgTokenSpaceGuid.PcdSupportUpdateCapsuleReset ## SOMETIMES_CONSUMES # Populate Image requires reset support.
[Pcd.X64]
- ## SOMETIMES_CONSUMES
- ## SOMETIMES_PRODUCES
- gEfiMdeModulePkgTokenSpaceGuid.PcdIdentifyMappingPageTablePtr
gEfiMdeModulePkgTokenSpaceGuid.PcdCapsulePeiLongModeStackSize ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable ## SOMETIMES_CONSUMES
|