diff options
| author | Olivier Martin <olivier.martin@arm.com> | 2014-10-10 11:22:50 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-10-10 11:22:50 +0000 |
| commit | 9180ab73e6d4a72c420292c1454f94d391737fa1 (patch) | |
| tree | 58e3996cb78c5350d18d649a12d91e4a550d73a5 /ArmPlatformPkg | |
| parent | 3a0e4800a328f5d7893e080f65edcc6bd0bc07e5 (diff) | |
| download | edk2-platforms-9180ab73e6d4a72c420292c1454f94d391737fa1.tar.xz | |
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 <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16204 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPlatformPkg')
6 files changed, 179 insertions, 4 deletions
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.<BR>
+ Copyright (c) 2013, ARM Ltd. All rights reserved.<BR>
+ Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+
+ 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 <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/EfiResetSystemLib.h>
+#include <Library/ArmSmcLib.h>
+#include <Library/ArmHvcLib.h>
+
+#include <IndustryStandard/ArmStdSmc.h>
+
+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.<BR>
+# Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
+#
+# 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
|