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//*************************************************************************
//*************************************************************************
//** **
//** (C)Copyright 1985-2014, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//*************************************************************************
//*************************************************************************
//*************************************************************************
// $Header: /Alaska/SOURCE/Modules/HddSecurity/IdeSecurityBdsCall.c 2 6/09/14 9:53a Anbuprakashp $
//
// $Revision: 2 $
//
// $Date: 6/09/14 9:53a $
//
//*************************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/HddSecurity/IdeSecurityBdsCall.c $
//
// 2 6/09/14 9:53a Anbuprakashp
// [TAG] EIP 172443
// [Category] Improvement
// [Description] "RaidDriverBlockingStatus" is using
// gEfiGlobalVariableGuid that violates UEFI 2.4 spec in
// IdeSecurityBdsCall.c and Runtime attribute set of this variable need to
// be removed
// [Files] IdeSecurityBdsCall.c, AhciBus.c
//
// 1 6/06/13 4:03a Rameshr
// [TAG] EIP106423
// [Category] Improvement
// [Description] HddPassword Support in UEFI Raid and Legacy Raid. And
// also taken care where there is no Conin Device avilable in the post
// [Files] IdeSecurity.cif
// IdeSecurity.sdl
// IdeSecurity.mak
// IdeSecurity.h
// IdeSecurity.c
// IdeSecuritySetup.c
// IdeSecurityBdsCall.c
// IdeSecurity.sd
// IdeSecurity.uni
// IdeSecurity.dxs
// IdeSecurity.chm
//
//
//*************************************************************************
//<AMI_FHDR_START>
//----------------------------------------------------------------------------
//
// Name: IdeSecurityBdsCall.c
//
// Description: This function will connect the handle's of RAID Controllers and
// the IDE/AHCI Devices( the handle whose DiskIo was not opened by any one.)
//
//
//----------------------------------------------------------------------------
//<AMI_FHDR_END>
#include <PCI.h>
#include "Protocol\DiskIo.h"
#include <Protocol\IdeControllerInit.h>
#include <AmiDxeLib.h>
#include <Protocol\DevicePath.h>
static EFI_GUID gAmiGlobalVariableGuid = AMI_GLOBAL_VARIABLE_GUID;
extern EFI_STATUS GetPciHandlesByClass(
UINT8 Class, UINT8 SubClass, UINTN *NumberOfHandles, EFI_HANDLE **HandleBuffer
);
// <AMI_PHDR_START>
//---------------------------------------------------------------------------
//
// Name: IdeConnectControllerAfterConnectEverthing
//
// Description:
// This function will connect the handle's of RAID Controllers and the IDE/AHCI
// Devices( the handle whose DiskIo was not opened by any one.)
//
// Input:
// VOID
//
// Output:
// VOID
//
// Modified:
//
// Referrals:
//
//
// Notes:
// If Conin Devices are not Present, RAID Option ROM will not be launched
// by CSM BlockIo as RegisterHddNotification fucntion would get control after
// connectEverything() is called from BDS. Rather it would be launched by
// ShadowAllLegacyOproms() and UEFI Boot option for RAID will not be formed as
// blockIo will not be installed by csm BlockIo driver. So Connect the RAID handle
// so that CSM BlockIo starts. And also if Password is installed the above said case
// will happen when no con in device is present.
//
// Check for any device in IDE/AHCI mode not unlocked when no ConIn Device is not present.
// If found Connecting that Device using ConnectController() after the Device is unlocked.
// as read would fail and FileSystem would not be formedOpen gEfiIdeControllerInitProtocolGuid
// which will be installed on each controller. This will be opened as
// EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER by each device handle.Connect that Handle where
// DiskIo will be installed and not opened by another driver.
//
//---------------------------------------------------------------------------
// <AMI_PHDR_END>
VOID IdeConnectControllerAfterConnectEverthing( )
{
UINT8 Index;
UINT8 Index1;
UINTN DiskIoCount;
UINTN Count;
UINTN Count1;
EFI_HANDLE *HandleBuffer = NULL;
UINTN NumHandles;
EFI_STATUS Status;
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *DiskIoEntries = NULL;
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *Entries = NULL;
BOOLEAN RaidDriverBlocked=FALSE;
UINTN VarSize=sizeof(RaidDriverBlocked);
// If Conin Devices are not Present, RAID Option ROM will not be launched
// by CSM BlockIo as RegisterHddNotification fucntion would get control after
// connectEverything() is called from BDS. Rather it would be launched by
// ShadowAllLegacyOproms() and UEFI Boot option for RAID will not be formed as
// blockIo will not be installed by csm BlockIo driver. So Connect the RAID handle
// so that CSM BlockIo starts. And also if Password is installed the above said case
// will happen when no con in device is present.
Status = GetPciHandlesByClass(PCI_CL_MASS_STOR,
PCI_CL_MASS_STOR_SCL_RAID,
&NumHandles,
&HandleBuffer
);
// Connect the handle so that CSM BlockIo Launches RAID Option Rom.
if(!EFI_ERROR(Status)){
Status = pRS->GetVariable( L"RaidDriverBlockingStatus",
&gAmiGlobalVariableGuid,
NULL,
&VarSize,
&RaidDriverBlocked );
if((EFI_ERROR(Status)) || (RaidDriverBlocked == FALSE)) {
return;
}
for(Index=0; Index<NumHandles; Index++){
// We have blocked the Raid driver until password verification is done.
// Now we need to un block and connect the Raid driver after HddPassword verification is done
Status = pBS->OpenProtocolInformation(HandleBuffer[Index],
&gEfiDevicePathProtocolGuid,
&Entries,
&Count1
);
if(!EFI_ERROR(Status)) {
for(Index1=0; Index1 < Count1; Index1++) {
if (Entries[Index1].Attributes!=EFI_OPEN_PROTOCOL_BY_DRIVER) {
continue;
}
Status = pBS->CloseProtocol (
HandleBuffer[Index],
&gEfiDevicePathProtocolGuid,
Entries[Index1].AgentHandle,
Entries[Index1].ControllerHandle
);
}
}
pBS->ConnectController(HandleBuffer[Index],NULL,NULL,TRUE);
}
} else {
// Check for any device in IDE/AHCI mode not unlocked when no ConIn Device is not present.
// If found Connecting that Device using ConnectController() after the Device is unlocked.
// Open gEfiIdeControllerInitProtocolGuid which will be installed on each controller.
// This will be opened as EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER by each device handle.
// Connect that Handle where DiskIo will be installed and not opened by another driver.
Status = pBS->LocateHandleBuffer(ByProtocol,
&gEfiIdeControllerInitProtocolGuid,
NULL,
&Count,
&HandleBuffer);
if(!EFI_ERROR(Status)){
for(Index=0; Index < Count; Index++) {
Status = pBS->OpenProtocolInformation(HandleBuffer[Index],
&gEfiIdeControllerInitProtocolGuid,
&Entries,
&Count1
);
if(!EFI_ERROR(Status)) {
for(Index1=0; Index1 < Count1; Index1++) {
if (Entries[Index1].Attributes!=EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) {
continue;
}
Status = pBS->OpenProtocolInformation(Entries[Index1].ControllerHandle,
&gEfiDiskIoProtocolGuid,
&DiskIoEntries,
&DiskIoCount
);
if(!EFI_ERROR(Status)) {
if( DiskIoCount == 0 ) {
Status = pBS->ConnectController(Entries[Index1].ControllerHandle,
NULL,
NULL,
TRUE);
}
pBS->FreePool(DiskIoEntries);
}
}
pBS->FreePool(Entries);
}
}
}
}
if(HandleBuffer) {
pBS->FreePool(HandleBuffer);
}
return;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2014, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
