diff options
Diffstat (limited to 'Board/EM/MeWrapper/AmtWrapper/AmtLockKBD/AmtLockKBD.c')
| -rw-r--r-- | Board/EM/MeWrapper/AmtWrapper/AmtLockKBD/AmtLockKBD.c | 507 |
1 files changed, 507 insertions, 0 deletions
diff --git a/Board/EM/MeWrapper/AmtWrapper/AmtLockKBD/AmtLockKBD.c b/Board/EM/MeWrapper/AmtWrapper/AmtLockKBD/AmtLockKBD.c new file mode 100644 index 0000000..aea8c99 --- /dev/null +++ b/Board/EM/MeWrapper/AmtWrapper/AmtLockKBD/AmtLockKBD.c @@ -0,0 +1,507 @@ +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//************************************************************************* + +//********************************************************************** +// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/ME/AmtWrapper/AmtLockKBD/AmtLockKBD.c 4 4/30/13 3:35a Tristinchou $ +// +// $Revision: 4 $ +// +// $Date: 4/30/13 3:35a $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/ME/AmtWrapper/AmtLockKBD/AmtLockKBD.c $ +// +// 4 4/30/13 3:35a Tristinchou +// [TAG] EIP119188 +// [Category] Bug Fix +// [Severity] Normal +// [Symptom] Lock keyboard will be no function +// [Solution] Lock keyboard directly +// [Files] AmtLockKBD.c +// +// 3 12/11/12 2:40a Klzhan +// Fix exception error when Secure Boot Enabled. +// +// 2 4/24/12 12:45a Klzhan +// Update module to latest +// +// 1 2/08/12 1:10a Klzhan +// Initial Check in +// +// 4 7/24/11 10:12a Klzhan +// Remove un-used debug message. +// +// 3 7/13/11 4:03a Klzhan +// Fix Lock KBD can't work without SOL enable. +// +// 2 6/28/11 7:32a Klzhan +// Enable Legacy SreDir before getting signature. +// +// 1 2/25/11 1:45a Klzhan +// Initial Check-in +// +// 1 12/03/10 5:11a Klzhan +// Initial Check-in. +// +//********************************************************************** + +//<AMI_FHDR_START> +//--------------------------------------------------------------------------- +// Name: AMTLockKBD.c +// +// Description: AMT Lock KeyBoard Functions. +// +//--------------------------------------------------------------------------- +//<AMI_FHDR_END> +#include <token.h> +#include <EFI.h> +#include <DXE.h> +#include <AmiDxeLib.h> +#include <..\Include\Protocol\ConsoleControl.h> +#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0)) +#include "..\core\em\csm\csm.h" +#endif +#include "..\Include\Protocol\DevicePath.h" +#include "..\Include\Protocol\DataHub.h" +#include "..\Include\Protocol\SimpleTextIn.h" +#include "..\Include\Protocol\SimpleTextInEx.h" +#include <ReferenceCode\ME\Protocol\AlertStandardFormat\AlertStandardFormat.h> +#include "Protocol\LegacySredir.h" +#include <Protocol\SmmPowerButtonDispatch.h> + +//============================================================================ +// Local defines for transaction types +//============================================================================ +#define EFI_SIGNATURE_16(A,B) ((A) | ((B)<<8)) +#define EFI_SIGNATURE_32(A,B,C,D) \ + (EFI_SIGNATURE_16((A),(B)) | (EFI_SIGNATURE_16((C),(D)) << 16)) + +#define AMT_INT9_SIGNATURE EFI_SIGNATURE_32 ('$', 'L', 'K', 'b') +#define SREDIR_FLAG_SIGNATURE EFI_SIGNATURE_32 ('$', 'S', 'r', 'F') + +#define BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID \ + { 0xdbc9fd21, 0xfad8, 0x45b0, 0x9e, 0x78, 0x27, 0x15, 0x88, 0x67, 0xcc, 0x93 } +EFI_GUID gBdsAllDriversConnectedProtocolGuid = \ + BDS_ALL_DRIVERS_CONNECTED_PROTOCOL_GUID; +EFI_GUID gEfiSimpleTextInExProtocolGuid = \ + EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID; +EFI_GUID gEfiSimpleTextInProtocolGuid = EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID; +EFI_GUID ConInStartedProtocolGuid = CONSOLE_IN_DEVICES_STARTED_PROTOCOL_GUID; + +#define BDS_CONNECT_DRIVERS_PROTOCOL_GUID \ + { 0x3aa83745, 0x9454, 0x4f7a, 0xa7, 0xc0, 0x90, 0xdb, 0xd0, 0x2f, 0xab, 0x8e } +EFI_GUID gEfiSmmPowerButtonDispatchProtocolGuid = \ + EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL_GUID; +EFI_GUID gBdsConnectDriversProtocolGuid = \ + BDS_CONNECT_DRIVERS_PROTOCOL_GUID; +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: ClearPowerButtonSmi +// +// Description: This routine disables Power Button SMI if Lock Power Button +// bit of Boot Option BitMask is set. +// +// Input: None. +// +// Output: None. +// +// Notes: None. +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +ClearPowerButtonSmi (VOID) +{ + UINT32 dPwrMgValue; + + // Read PM_1 Status/Enable Register + dPwrMgValue = IoRead32(PM_BASE_ADDRESS); + dPwrMgValue |= BIT08; // clear Power Button Status + dPwrMgValue &= ~BIT24; // clear Power Button Enable + IoWrite32 ( PM_BASE_ADDRESS, dPwrMgValue ); +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: DisablePowerButtonSmiEvent +// +// Description: This routine disables Power Button SMI if Lock Power Button +// bit of Boot Option BitMask is set. +// +// Input: EFI_EVENT - Event +// VOID* - Context +// +// Output: EFI_STATUS +// +// Notes: None. +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS +DisablePowerButtonSmiEvent ( + IN EFI_EVENT Event, + IN VOID *Context + ) +{ + EFI_STATUS Status; + EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL *PowerButton; + + Status = pBS->LocateProtocol ( &gEfiSmmPowerButtonDispatchProtocolGuid, \ + NULL, \ + &PowerButton ); + if(EFI_ERROR( Status )) return Status; + + ClearPowerButtonSmi(); + + pBS->CloseEvent(Event); + + return EFI_SUCCESS; +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: ASFRegisterPowerButtonCallBack +// +// Description: This routine register a Protocol Callback for Lock Power Button +// if Lock Power Button bit of Boot Option BitMask is set. +// +// Input: None. +// +// Output: None. +// +// Notes: None. +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +ASFRegisterPowerButtonCallBack (VOID) +{ + EFI_STATUS Status = EFI_SUCCESS; + EFI_EVENT EvtASFSmmPwrBtn, EvtASFBdsConnectDrivers; + VOID *RgnASFSmmPwrBtn, *RgnASFBdsConnectDrivers; + + // Clear Power Button Status before Power Button SMI is registered. + Status = RegisterProtocolCallback ( \ + &gEfiSmmPowerButtonDispatchProtocolGuid, \ + DisablePowerButtonSmiEvent, \ + NULL, \ + &EvtASFSmmPwrBtn, \ + &RgnASFSmmPwrBtn ); + + DisablePowerButtonSmiEvent ( EvtASFSmmPwrBtn, NULL ); + + Status = RegisterProtocolCallback ( \ + &gBdsConnectDriversProtocolGuid, \ + DisablePowerButtonSmiEvent, \ + NULL, \ + &EvtASFBdsConnectDrivers, \ + &RgnASFBdsConnectDrivers ); + return ; +} +#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0)) + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: GetLegacyDriverSignaturePtr +// +// Description: Aux roution to find the Signature in Legacy Reagon +// +// Input: +// +// Output: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +UINT32 +GetLegacyDriverSignaturePtr ( + IN UINT32 dStartAddress, + IN UINT32 dSize, + IN UINT32 dSignature +) +{ + UINT8 *pStartAddr = (UINT8 *)(UINTN)dStartAddress; + + for ( ;(UINTN)pStartAddr < (UINTN)(dStartAddress + dSize); pStartAddr++ ) + if ( *(UINT32 *)pStartAddr == dSignature ) return ((UINT32)pStartAddr); + return FALSE; +} + +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: LegacyBiosLockLocalKeyboard +// +// Description: Sub-roution lock keyboard. +// +// Input: +// +// Output: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +LegacyBiosLockLocalKeyboard (VOID) +{ + + EFI_STATUS Status; + UINT32 dAMTInt9Ptr = 0, dSRedirFlagPtr = 0; + EFI_LEGACY_BIOS_PROTOCOL *LegacyBios; + BIOS_INFO *Private; + + // Get AMT Int 9h signature pointer. + dAMTInt9Ptr = GetLegacyDriverSignaturePtr ( \ + 0xe0000, 0x20000, AMT_INT9_SIGNATURE ); + // Get Legacy Serial Redirection Flag signature pointer. + dSRedirFlagPtr = GetLegacyDriverSignaturePtr ( \ + 0x90000, 0x10000, SREDIR_FLAG_SIGNATURE ); + if ( !dAMTInt9Ptr ) return ; + // Locate Legacy Bios Protocol for lock/unlock shadow ram. + Status = pBS->LocateProtocol ( &gEfiLegacyBiosProtocolGuid, \ + NULL, \ + &LegacyBios ); + if ( EFI_ERROR( Status ) ) return; + Private = (BIOS_INFO *) LegacyBios; + // Unlock Shadow ram. + Private->iRegion->UnLock ( Private->iRegion, 0xE0000, 0x20000, NULL ); + // Update Legacy Serial Redirection Flag pointer to AMT Int 9h. + if(!dSRedirFlagPtr) + dSRedirFlagPtr = (dAMTInt9Ptr + 4); + *(UINT32*)(dAMTInt9Ptr + 4) = (UINT32)(((UINTN)dSRedirFlagPtr & 0xFFFF) + \ + (((UINTN)dSRedirFlagPtr & 0xF0000) << 12) + \ + sizeof ( SREDIR_FLAG_SIGNATURE )); + // Lock Shadow ram. + Private->iRegion->Lock ( Private->iRegion, 0xE0000, 0x20000, NULL ); + +} +#endif +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: EventAllConsoleDevicesStarted +// +// Description: Sub-Roution to check if need disable keyboard or not +// from IntelAMT extersion ASF Boot Option Message. +// +// Input: +// +// Output: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +EventAllConsoleDevicesStarted +( + IN EFI_EVENT Event, + IN VOID *Context +) +{ + EFI_STATUS Status; + EFI_HANDLE *SimpleTextInHandle; + UINTN HandleNum, Index; + EFI_DEVICE_PATH_PROTOCOL *DevicePathNode; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleTextIn; + EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleTextInEx; + PCI_DEVICE_PATH *PciDevicePath; + EFI_GUID gEfiAlertStandardFormatProtocolGuid = EFI_ALERT_STANDARD_FORMAT_PROTOCOL_GUID; + EFI_ALERT_STANDARD_FORMAT_PROTOCOL *Asf; + EFI_ASF_BOOT_OPTIONS *mAsfBootOptions; + + Status = pBS->LocateProtocol ( + &gEfiAlertStandardFormatProtocolGuid, + NULL, + &Asf + ); + + if (EFI_ERROR (Status)) { + return; + } + + Status = Asf->GetBootOptions (Asf, &mAsfBootOptions); + // If not Lock keyboard, return !! + if(!((mAsfBootOptions->BootOptions) & 0x20)) + return; + + // 2. Uninstall all the console spliter drivers except SOL. + // Locate Simple Text Input Protocol Handle Buffer. + Status = pBS->LocateHandleBuffer ( ByProtocol, \ + &gEfiSimpleTextInProtocolGuid, \ + NULL, \ + &HandleNum, \ + &SimpleTextInHandle ); + if ( EFI_ERROR ( Status ) ) return ; + + // Search USB keyboard and Generic PS2 Keyboard Device Path. + for ( Index = 0; Index < HandleNum; Index++ ) { + + // Locate Simple Text Input Protocol. + Status = pBS->HandleProtocol ( SimpleTextInHandle[Index], \ + &gEfiDevicePathProtocolGuid, \ + (VOID *)&DevicePath ); + if ( EFI_ERROR ( Status ) ) continue; + + DevicePathNode = DevicePath; + while ( !isEndNode ( DevicePathNode ) ) { + PciDevicePath = (PCI_DEVICE_PATH *) DevicePathNode; + // Is USB Device Path or Generic SIO Device Path (SouthBridge)? + if ((( DevicePathNode->Type == MESSAGING_DEVICE_PATH ) && \ + ( DevicePathNode->SubType == MSG_USB_DP )) || \ + (( DevicePathNode->Type == HARDWARE_DEVICE_PATH ) && \ + ( DevicePathNode->SubType == HW_PCI_DP ) && \ + ( PciDevicePath->Device == 0x1f ) && \ + ( PciDevicePath->Function == 0 ))) { + + // Locate Simple Text Input Protocol. + Status = pBS->HandleProtocol ( SimpleTextInHandle[Index], \ + &gEfiSimpleTextInProtocolGuid, \ + (VOID **)&SimpleTextIn ); + if ( EFI_ERROR ( Status ) ) break; + + // Uninstall Simple Text Input Protocol for stopping keyboard. + Status = pBS->UninstallProtocolInterface ( \ + SimpleTextInHandle[Index], \ + &gEfiSimpleTextInProtocolGuid, \ + SimpleTextIn ); + if ( EFI_ERROR ( Status ) ) break; + + // Locate Simple Text Input EX Protocol. + Status = pBS->HandleProtocol ( \ + SimpleTextInHandle[Index], \ + &gEfiSimpleTextInExProtocolGuid, \ + (VOID **)&SimpleTextInEx ); + if ( EFI_ERROR ( Status ) ) break; + + // Uninstall Simple Text Input EX Protocol for stopping + // SIO keyboard. + Status = pBS->UninstallProtocolInterface ( \ + SimpleTextInHandle[Index], \ + &gEfiSimpleTextInExProtocolGuid, \ + SimpleTextInEx ); + break; + } + DevicePathNode = NEXT_NODE ( DevicePathNode ); + } + } +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: LockLegacyKBD +// +// Description: Sub-Roution to check if need disable keyboard or not +// from IntelAMT extersion ASF Boot Option Message. +// +// Input: +// +// Output: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +VOID +LockLegacyKBD +( + IN EFI_EVENT Event, + IN VOID *Context +) +{ + // 1. Hook Int 9h for locking local keyboard but keep the Legacy SOL + // working in CSM and Legacy OS. +#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0)) + LegacyBiosLockLocalKeyboard (); +#endif +} +//<AMI_PHDR_START> +//---------------------------------------------------------------------------- +// Procedure: AMTLOCKKBDEntryPoint +// +// Description: Lock keyboard Entrypoint. +// +// Input: +// +// Output: +// +// Notes: +// +//---------------------------------------------------------------------------- +//<AMI_PHDR_END> +EFI_STATUS AMTLOCKKBDEntryPoint( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable +) +{ + EFI_STATUS Status; + EFI_EVENT ConInConnectEvt; + VOID *ConInNotifyReg; + EFI_EVENT ConInExConnectEvt; + VOID *ConInExNotifyReg; + EFI_EVENT AllDriverConnectEvt; + VOID *AllDriverExNotifyReg; + + EFI_GUID gEfiAlertStandardFormatProtocolGuid = EFI_ALERT_STANDARD_FORMAT_PROTOCOL_GUID; + EFI_ALERT_STANDARD_FORMAT_PROTOCOL *Asf; + EFI_ASF_BOOT_OPTIONS *mAsfBootOptions; + + InitAmiLib(ImageHandle, SystemTable); + Status = pBS->LocateProtocol (&gEfiAlertStandardFormatProtocolGuid, \ + NULL, &Asf ); + if (EFI_ERROR (Status)) return Status; + + Status = Asf->GetBootOptions (Asf, &mAsfBootOptions); + if (EFI_ERROR (Status)) return Status; + + // If not Lock keyboard, return !! + if (mAsfBootOptions->BootOptions & 0x20) { + + Status = RegisterProtocolCallback( + &gEfiSimpleTextInExProtocolGuid, + EventAllConsoleDevicesStarted, + NULL, + &ConInExConnectEvt, + &ConInExNotifyReg); + + Status = RegisterProtocolCallback( + &gEfiSimpleTextInProtocolGuid, + EventAllConsoleDevicesStarted, + NULL, + &ConInConnectEvt, + &ConInNotifyReg); + + Status = RegisterProtocolCallback( + &gBdsAllDriversConnectedProtocolGuid, + LockLegacyKBD, + NULL, + &AllDriverConnectEvt, + &AllDriverExNotifyReg); + + } + if (mAsfBootOptions->BootOptions & 0x2) ASFRegisterPowerButtonCallBack (); + return EFI_SUCCESS; +} +//************************************************************************* +//************************************************************************* +//** ** +//** (C)Copyright 1985-2010, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//************************************************************************* +//*************************************************************************
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