Revision: 17380
http://sourceforge.net/p/edk2/code/17380
Author: oliviermartin
Date: 2015-05-08 12:06:09 +0000 (Fri, 08 May 2015)
Log Message:
-----------
ArmVExpressPkg: use PSCI for system reset at runtime
Since the default EfiResetSystemLib for VExpress cannot be used at
runtime (due to the fact that its MMIO registers need to be owned
by the OS and so cannot be runtime remapped), instead use PSCI calls
into EL3 at runtime.
Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Olivier Martin <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Modified Paths:
--------------
trunk/edk2/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc
Modified: trunk/edk2/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc
===================================================================
--- trunk/edk2/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc
2015-05-08 07:50:00 UTC (rev 17379)
+++ trunk/edk2/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc
2015-05-08 12:06:09 UTC (rev 17380)
@@ -215,6 +215,15 @@
ReportStatusCodeLib|IntelFrameworkModulePkg/Library/DxeReportStatusCodeLibFramework/DxeReportStatusCodeLib.inf
CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
+ #
+ # PSCI support in EL3 may not be available if we are not running under a PSCI
+ # compliant secure firmware, but since the default VExpress EfiResetSystemLib
+ # cannot be supported at runtime (due to the fact that the syscfg MMIO
registers
+ # cannot be runtime remapped), it is our best bet to get ResetSystem
functionality
+ # on these platforms.
+ #
+
EfiResetSystemLib|ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf
+
[LibraryClasses.ARM, LibraryClasses.AARCH64]
#
# It is not possible to prevent the ARM compiler for generic intrinsic
functions.
------------------------------------------------------------------------------
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