This adds an implementation of EfiResetSystemLib that uses PSCI hypervisor calls to reboot and/or shutdown the system.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Casadevall <michael.casadev...@linaro.org> Acked-by: Laszlo Ersek <ler...@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org> --- .../ResetSystemLib/AARCH64/ResetSystemPsci.S | 40 +++++++++ .../Library/ResetSystemLib/ARM/ResetSystemPsci.S | 41 +++++++++ .../Library/ResetSystemLib/ResetSystemLib.c | 97 ++++++++++++++++++++++ .../Library/ResetSystemLib/ResetSystemLib.inf | 41 +++++++++ 4 files changed, 219 insertions(+) create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/AARCH64/ResetSystemPsci.S create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ARM/ResetSystemPsci.S create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.c create mode 100644 ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.inf diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/AARCH64/ResetSystemPsci.S b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/AARCH64/ResetSystemPsci.S new file mode 100644 index 000000000000..988b0fdc41e4 --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/AARCH64/ResetSystemPsci.S @@ -0,0 +1,40 @@ +/** @file + Support ResetSystem Runtime call using PSCI hvc calls + + 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 <AsmMacroIoLibV8.h> +#include <Base.h> +#include <Library/ArmLib.h> +#include <AutoGen.h> + +#define PSCI_0_2_FN_BASE 0x84000000 +#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n)) +#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8) +#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9) + +.text +.align 2 + +GCC_ASM_EXPORT(ArmPsciSystemOff) +GCC_ASM_EXPORT(ArmPsciSystemReset) + +ASM_PFX(ArmPsciSystemOff): + ldr w0, =PSCI_0_2_FN_SYSTEM_OFF + hvc #0 + ret + +ASM_PFX(ArmPsciSystemReset): + ldr w0, =PSCI_0_2_FN_SYSTEM_RESET + hvc #0 + ret diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ARM/ResetSystemPsci.S b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ARM/ResetSystemPsci.S new file mode 100644 index 000000000000..9e126c6627a7 --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ARM/ResetSystemPsci.S @@ -0,0 +1,41 @@ +/** @file + Support ResetSystem Runtime call using PSCI hvc calls + + 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 <AsmMacroIoLib.h> +#include <Base.h> +#include <Library/ArmLib.h> +#include <AutoGen.h> + +#define PSCI_0_2_FN_BASE 0x84000000 +#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n)) +#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8) +#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9) + +.text +.align 2 +.arch_extension virt + +GCC_ASM_EXPORT(ArmPsciSystemOff) +GCC_ASM_EXPORT(ArmPsciSystemReset) + +ASM_PFX(ArmPsciSystemOff): + ldr r0, =PSCI_0_2_FN_SYSTEM_OFF + hvc #0 + bx lr + +ASM_PFX(ArmPsciSystemReset): + ldr r0, =PSCI_0_2_FN_SYSTEM_RESET + hvc #0 + bx lr diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.c b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.c new file mode 100644 index 000000000000..a420591a8e9c --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.c @@ -0,0 +1,97 @@ +/** @file + Support ResetSystem Runtime call using PSCI hvc calls + + 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> + +VOID +ArmPsciSystemReset ( + VOID + ); + +VOID +ArmPsciSystemOff ( + VOID + ); + +/** + 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 + ) +{ + 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 + ArmPsciSystemReset (); + break; + case EfiResetShutdown: + // Send a PSCI 0.2 SYSTEM_OFF command + ArmPsciSystemOff (); + break; + + default: + ASSERT (FALSE); + 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/ResetSystemLib/ResetSystemLib.inf b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.inf new file mode 100644 index 000000000000..e50c134620b7 --- /dev/null +++ b/ArmPlatformPkg/ArmVirtualizationPkg/Library/ResetSystemLib/ResetSystemLib.inf @@ -0,0 +1,41 @@ +#/** @file +# Reset System lib to make it easy to port new platforms +# +# Copyright (c) 2008, Apple Inc. 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 = ResetSystemLib + FILE_GUID = DC9CCFDD-2638-474B-8F5D-031B758C12FC + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = EfiResetSystemLib + +[Sources.common] + ResetSystemLib.c + +[Sources.AARCH64] + AARCH64/ResetSystemPsci.S | GCC + +[Sources.ARM] + ARM/ResetSystemPsci.S | GCC + +[Packages] + ArmPkg/ArmPkg.dec + MdePkg/MdePkg.dec + EmbeddedPkg/EmbeddedPkg.dec + +[LibraryClasses] + IoLib + DebugLib + BaseLib -- 1.8.3.2 ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. 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