9c3dea8dda
https://bugzilla.tianocore.org/show_bug.cgi?id=138 This UEFI Application sets a sticky bit that persists across reset to force a boot mode of BOOT_IN_RECOVERY_MODE. It then performs a warm reset using the UEFI Runtime Service ResetSystem(). Cc: Kelly Steele <kelly.steele@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Kelly Steele <kelly.steele@intel.com>
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/** @file
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Application that sets a sticky bit to force recovery on next reset.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/QNCAccessLib.h>
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/**
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The user Entry Point for Application. The user code starts with this function
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as the real entry point for the application.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval other Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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UefiMain (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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//
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// Set 'B_CFG_STICKY_RW_FORCE_RECOVERY' sticky bit so we know we need to do a recovery following warm reset
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//
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QNCAltPortWrite (
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QUARK_SCSS_SOC_UNIT_SB_PORT_ID,
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QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW,
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QNCAltPortRead (QUARK_SCSS_SOC_UNIT_SB_PORT_ID, QUARK_SCSS_SOC_UNIT_CFG_STICKY_RW) | B_CFG_STICKY_RW_FORCE_RECOVERY
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);
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//
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// Do a warm reset
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//
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gRT->ResetSystem (EfiResetWarm, EFI_SUCCESS, 0, NULL);
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return EFI_SUCCESS;
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}
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