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/** @file
Implementation file for AMT Policy functionality for PEIM
@copyright
Copyright (c) 2006 - 2012 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
This file contains an 'Intel Peripheral Driver' and uniquely
identified as "Intel Reference Module" and is
licensed for Intel CPUs and chipsets under the terms of your
license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the
license agreement
**/
//
// External include files do NOT need to be explicitly specified in real EDKII
// environment
//
#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
#include "EdkIIGluePeim.h"
#include "AmtPolicyLibPei.h"
#endif
EFI_GUID mPeiAmtStatusCodePpiGuid = PEI_AMT_STATUS_CODE_PPI_GUID;
/**
Check if Amt is enabled in setup options.
@param[in] PeiServices General purpose services available to every PEIM.
@param[in] PeiAmtPlatformPolicy The AMT Platform Policy protocol instance
@retval EFI_SUCCESS AMT platform policy Ppi located
@retval All other error conditions encountered result in an ASSERT.
**/
EFI_STATUS
PeiAmtPolicyLibInit (
EFI_PEI_SERVICES **PeiServices,
PEI_AMT_PLATFORM_POLICY_PPI **PeiAmtPlatformPolicy
)
{
EFI_STATUS Status;
///
/// Locate system configuration variable
///
Status = PeiServicesLocatePpi (
&gPeiAmtPlatformPolicyPpiGuid, // GUID
0, // INSTANCE
NULL, // EFI_PEI_PPI_DESCRIPTOR
(VOID **) PeiAmtPlatformPolicy // PPI
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Check if AMT WatchDog is enabled in setup options.
@param[in] PeiServices Point to Pei Services structure
@retval FALSE AMT WatchDog is disabled.
@retval TRUE AMT WatchDog is enabled.
**/
BOOLEAN
PeiAmtWatchDog (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
BOOLEAN Supported;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Supported = FALSE;
if (ManageabilityModeSetting (PeiServices) != 0) {
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
//
// First check if AMT WatchDog is enabled in Setup.
//
if (PeiAmtPlatformPolicy->WatchDog == 1) {
Supported = TRUE;
}
}
return Supported;
}
/**
Get WatchDog BIOS Timmer.
@param[in] PeiServices Point to Pei Services structure
@retval UINT16 WatchDog BIOS Timer
**/
UINT16
PeiAmtWatchTimerBiosGet (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
return PeiAmtPlatformPolicy->WatchDogTimerBios;
}
/**
Check if AMT is enabled in setup options.
@param[in] PeiServices Point to Pei Services structure
@retval FALSE ActiveManagement is disabled.
@retval TRUE ActiveManagement is enabled.
**/
BOOLEAN
PeiAmtSupported (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
BOOLEAN Supported;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
//
// First check if AMT support is enabled in Setup.
//
if (PeiAmtPlatformPolicy->iAmtEnabled == 1) {
Supported = TRUE;
} else {
Supported = FALSE;
}
return Supported;
}
/**
Check if ASF is enabled in setup options.
@param[in] PeiServices Point to Pei Services structure
@retval FALSE ASF is disabled.
@retval TRUE ASF is enabled.
**/
BOOLEAN
PeiAsfSupported (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
BOOLEAN Supported;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
if (PeiAmtPlatformPolicy->Revision < PEI_AMT_PLATFORM_POLICY_PPI_REVISION_2) {
return FALSE;
}
//
// First check if ASF support is enabled in Setup.
//
if (PeiAmtPlatformPolicy->AsfEnabled == 1) {
Supported = TRUE;
} else {
Supported = FALSE;
}
return Supported;
}
/**
Provide Manageability Mode setting from MEBx BIOS Sync Data
@param[in] PeiServices Point to Pei Services structure
@retval UINT8 Manageability Mode = MNT_AMT or MNT_ASF
**/
UINT8
ManageabilityModeSetting (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
if (PeiAmtPlatformPolicy->Revision < PEI_AMT_PLATFORM_POLICY_PPI_REVISION_2) {
return 0;
}
return (UINT8) (PeiAmtPlatformPolicy->ManageabilityMode);
}
/**
This will return progress event Option.
True if the option is enabled.
@param[in] PeiServices Point to Pei Services structure
@retval True progress event is enabled.
@retval False progress event is disabled.
**/
BOOLEAN
PeiFwProgressSupport (
IN EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
BOOLEAN Supported;
PEI_AMT_PLATFORM_POLICY_PPI *PeiAmtPlatformPolicy;
Status = PeiAmtPolicyLibInit (PeiServices, &PeiAmtPlatformPolicy);
ASSERT_EFI_ERROR (Status);
Supported = FALSE;
if (PeiAmtPlatformPolicy->Revision >= PEI_AMT_PLATFORM_POLICY_PPI_REVISION_3) {
//
// Check if progress event is enabled in Setup.
//
if (PeiAmtPlatformPolicy->FWProgress == 1) {
Supported = TRUE;
}
}
return Supported;
}
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