Reviewed-By: Olivier Martin <olivier.mar...@arm.com> -----Original Message----- From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org] Sent: 01 May 2015 16:36 To: ler...@redhat.com; Olivier Martin; leif.lindh...@linaro.org; roy.fr...@linaro.org; ge...@infradead.org; edk2-devel@lists.sourceforge.net Cc: Ard Biesheuvel Subject: [PATCH v3 1/2] 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. 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/ArmPsciResetSys + temLib.inf + [LibraryClasses.ARM, LibraryClasses.AARCH64] # # It is not possible to prevent the ARM compiler for generic intrinsic functions. -- 1.9.1 -- IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you. ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2557590 ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered in England & Wales, Company No: 2548782 ------------------------------------------------------------------------------ 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
