@@ -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.
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. At boot time, the original EfiResetSystemLib is retained. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc | 9 +++++++++ 1 file changed, 9 insertions(+)