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.biesheu...@linaro.org> --- ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc index 8dd20ca0abc2..0bac7f6c4de9 100644 --- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc +++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress.dsc.inc @@ -75,7 +75,6 @@ PlatformPeiLib|ArmPlatformPkg/PlatformPei/PlatformPeiLib.inf ArmPlatformSysConfigLib|ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressSysConfigLib/ArmVExpressSysConfigLib.inf NorFlashPlatformLib|ArmPlatformPkg/ArmVExpressPkg/Library/NorFlashArmVExpressLib/NorFlashArmVExpressLib.inf - EfiResetSystemLib|ArmPlatformPkg/ArmVExpressPkg/Library/ResetSystemLib/ResetSystemLib.inf # ARM PL111 Lcd Driver LcdPlatformLib|ArmPlatformPkg/ArmVExpressPkg/Library/PL111LcdArmVExpressLib/PL111LcdArmVExpressLib.inf # ARM PL031 RTC Driver @@ -215,6 +214,15 @@ 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. -- 1.9.1 ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
