From 9180ab73e6d4a72c420292c1454f94d391737fa1 Mon Sep 17 00:00:00 2001 From: Olivier Martin Date: Fri, 10 Oct 2014 11:22:50 +0000 Subject: ArmPkg/ArmPsciResetSystemLib: Made the library only using SMC Only ArmVirtualizationPkg based platforms are expected to use the dynamic method to choose between SMC and HVC to invoke PSCI. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Olivier Martin git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16204 6f19259b-4bc3-4df7-8a09-765794883524 --- .../ArmVirtualizationPkg/ArmVirtualization.dsc.inc | 2 +- .../ArmVirtualizationPkg/ArmVirtualizationPkg.dec | 10 +- .../ArmVirtualizationPkg/ArmVirtualizationQemu.dsc | 2 +- .../ArmVirtualizationPsciResetSystemLib.c | 125 +++++++++++++++++++++ .../ArmVirtualizationPsciResetSystemLib.inf | 42 +++++++ .../ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf | 2 +- 6 files changed, 179 insertions(+), 4 deletions(-) create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.c create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.inf (limited to 'ArmPlatformPkg') diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc index 7929dcfa05..b05f1ec7c6 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualization.dsc.inc @@ -73,7 +73,7 @@ ArmGenericTimerCounterLib|ArmPkg/Library/ArmGenericTimerVirtCounterLib/ArmGenericTimerVirtCounterLib.inf PlatformPeiLib|ArmPlatformPkg/ArmVirtualizationPkg/Library/PlatformPeiLib/PlatformPeiLib.inf - EfiResetSystemLib|ArmPkg/Library/ArmPsciResetSystemLib/ArmPsciResetSystemLib.inf + EfiResetSystemLib|ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.inf # ARM PL031 RTC Driver RealTimeClockLib|ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.inf diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec index c07fce94a4..b581add024 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec @@ -43,5 +43,13 @@ # gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0|UINT64|0x00000001 -[PcdsDynamic,PcdsFixedAtBuild] +[PcdsDynamic, PcdsFixedAtBuild] gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress|0x0|UINT64|0x00000002 + + # + # ARM PSCI function invocations can be done either through hypervisor + # calls (HVC) or secure monitor calls (SMC). + # PcdArmPsciMethod == 1 : use HVC + # PcdArmPsciMethod == 2 : use SMC + # + gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod|0|UINT32|0x00000003 diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc index abf419f355..634788368c 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc +++ b/ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationQemu.dsc @@ -160,7 +160,7 @@ ## PL031 RealTimeClock gArmPlatformTokenSpaceGuid.PcdPL031RtcBase|0x0 - gArmTokenSpaceGuid.PcdArmPsciMethod|0 + gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod|0 ################################################################################ # diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.c b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.c new file mode 100644 index 0000000000..88332f56fd --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.c @@ -0,0 +1,125 @@ +/** @file + Support ResetSystem Runtime call using PSCI calls + + Note: A similar library is implemented in + ArmPkg/Library/ArmPsciResetSystemLib. Similar issues might + exist in this implementation too. + + Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.
+ Copyright (c) 2013, ARM Ltd. All rights reserved.
+ Copyright (c) 2014, Linaro Ltd. All rights reserved.
+ + 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 + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include + +#include +#include +#include +#include +#include + +#include + +STATIC UINT32 mArmPsciMethod; + +RETURN_STATUS +EFIAPI +ArmPsciResetSystemLibConstructor ( + VOID + ) +{ + mArmPsciMethod = PcdGet32 (PcdArmPsciMethod); + return RETURN_SUCCESS; +} + +/** + Resets the entire platform. + + @param ResetType The type of reset to perform. + @param ResetStatus The status code for the reset. + @param DataSize The size, in bytes, of WatchdogData. + @param ResetData For a ResetType of EfiResetCold, EfiResetWarm, or + EfiResetShutdown the data buffer starts with a Null-terminated + Unicode string, optionally followed by additional binary data. + +**/ +EFI_STATUS +EFIAPI +LibResetSystem ( + IN EFI_RESET_TYPE ResetType, + IN EFI_STATUS ResetStatus, + IN UINTN DataSize, + IN CHAR16 *ResetData OPTIONAL + ) +{ + ARM_SMC_ARGS ArmSmcArgs; + ARM_HVC_ARGS ArmHvcArgs; + + switch (ResetType) { + + case EfiResetPlatformSpecific: + // Map the platform specific reset as reboot + case EfiResetWarm: + // Map a warm reset into a cold reset + case EfiResetCold: + // Send a PSCI 0.2 SYSTEM_RESET command + ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET; + ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET; + break; + case EfiResetShutdown: + // Send a PSCI 0.2 SYSTEM_OFF command + ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF; + ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF; + break; + default: + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + + switch (mArmPsciMethod) { + case 1: + ArmCallHvc (&ArmHvcArgs); + break; + + case 2: + ArmCallSmc (&ArmSmcArgs); + break; + + default: + DEBUG ((EFI_D_ERROR, "%a: no PSCI method defined\n", __FUNCTION__)); + return EFI_UNSUPPORTED; + } + + // We should never be here + DEBUG ((EFI_D_ERROR, "%a: PSCI Reset failed\n", __FUNCTION__)); + CpuDeadLoop (); + return EFI_UNSUPPORTED; +} + +/** + Initialize any infrastructure required for LibResetSystem () to function. + + @param ImageHandle The firmware allocated handle for the EFI image. + @param SystemTable A pointer to the EFI System Table. + + @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS. + +**/ +EFI_STATUS +EFIAPI +LibInitializeResetSystem ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + return EFI_SUCCESS; +} diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.inf b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.inf new file mode 100644 index 0000000000..b63507a33c --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ArmVirtualizationPsciResetSystemLib/ArmVirtualizationPsciResetSystemLib.inf @@ -0,0 +1,42 @@ +#/** @file +# Reset System lib using PSCI hypervisor or secure monitor calls +# +# Copyright (c) 2008, Apple Inc. All rights reserved.
+# Copyright (c) 2014, Linaro Ltd. All rights reserved.
+# +# 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 +# http://opensource.org/licenses/bsd-license.php +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# +#**/ + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = ArmVirtualizationPsciResetSystemLib + FILE_GUID = c81d76ed-66fa-44a3-ac4a-f163120187a9 + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = EfiResetSystemLib + CONSTRUCTOR = ArmPsciResetSystemLibConstructor + +[Sources] + ArmVirtualizationPsciResetSystemLib.c + +[Packages] + ArmPkg/ArmPkg.dec + ArmPlatformPkg/ArmVirtualizationPkg/ArmVirtualizationPkg.dec + MdePkg/MdePkg.dec + EmbeddedPkg/EmbeddedPkg.dec + +[LibraryClasses] + DebugLib + BaseLib + ArmSmcLib + ArmHvcLib + +[Pcd] + gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf index 1f10179f05..1c9dd20580 100644 --- a/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf +++ b/ArmPlatformPkg/ArmVirtualizationPkg/VirtFdtDxe/VirtFdtDxe.inf @@ -46,6 +46,7 @@ [Pcd] gArmVirtualizationTokenSpaceGuid.PcdDeviceTreeBaseAddress + gArmVirtualizationTokenSpaceGuid.PcdArmPsciMethod gArmTokenSpaceGuid.PcdGicDistributorBase gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum @@ -53,7 +54,6 @@ gArmTokenSpaceGuid.PcdArmArchTimerVirtIntrNum gArmTokenSpaceGuid.PcdArmArchTimerHypIntrNum gArmPlatformTokenSpaceGuid.PcdPL031RtcBase - gArmTokenSpaceGuid.PcdArmPsciMethod [Protocols] gEfiDevicePathProtocolGuid -- cgit v1.2.3