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/** @file
Implementation file for SeC functionality.
Copyright (c) 2006 - 2016, Intel Corporation. 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 <MkhiMsgs.h>
#include <Library/DebugLib.h>
#include <Library/HeciMsgLib.h>
#include <Library/PeiServicesLib.h>
/**
Check if SeC is enabled
@param[in] VOID Parameter is VOID
@retval EFI_SUCCESS Command succeeded
**/
EFI_STATUS
SeCLibInit (
VOID
)
{
EFI_STATUS Status;
Status = EFI_SUCCESS;
return Status;
}
/**
Send Get Firmware SKU Request to SEC.
@param[in] FwCapsSku Return Data from Get Firmware Capabilities MKHI Request.
@retval EFI_UNSUPPORTED Current SEC mode doesn't support this function.
@retval EFI_SUCCESS Command succeeded.
@retval EFI_DEVICE_ERROR HECI Device error, command aborts abnormally.
@retval EFI_TIMEOUT HECI does not return the buffer before timeout.
@retval EFI_BUFFER_TOO_SMALL Message Buffer is too small for the Acknowledge.
**/
EFI_STATUS
HeciGetFwCapsSku (
SECFWCAPS_SKU *FwCapsSku
)
{
EFI_STATUS Status;
GEN_GET_FW_CAPSKU MsgGenGetFwCapsSku;
GEN_GET_FW_CAPS_SKU_ACK MsgGenGetFwCapsSkuAck;
Status = PeiHeciGetFwCapsSkuMsg (FwCapsSku);
if (EFI_ERROR (Status)) {
return Status;
}
if (((MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.Command) == FWCAPS_GET_RULE_CMD) &&
((MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.IsResponse) == 1) &&
(MsgGenGetFwCapsSkuAck.MKHIHeader.Fields.Result == 0)) {
*FwCapsSku = MsgGenGetFwCapsSkuAck.Data.FWCapSku;
}
return EFI_SUCCESS;
}
/**
This message is sent by the BIOS or IntelR MEBX prior to the End of Post (EOP)
on the boot where host wants to get Ibex Peak platform type.
One of usages is to utilize this command to determine if the platform runs in
4M or 8M size firmware.
@param[out] RuleData PlatformBrand,
IntelSeCFwImageType,
SuperSku,
PlatformTargetMarketType,
PlatformTargetUsageType
@retval EFI_UNSUPPORTED Current SEC mode doesn't support this function.
@retval EFI_SUCCESS Command succeeded.
@retval EFI_DEVICE_ERROR HECI Device error, command aborts abnormally.
@retval EFI_TIMEOUT HECI does not return the buffer before timeout.
@retval EFI_BUFFER_TOO_SMALL Message Buffer is too small for the Acknowledge.
**/
EFI_STATUS
HeciGetPlatformType (
OUT PLATFORM_TYPE_RULE_DATA *RuleData
)
{
EFI_STATUS Status;
Status = PeiHeciGetPlatformTypeMsg (RuleData);
if (EFI_ERROR (Status)) {
return Status;
}
return EFI_SUCCESS;
}
/**
Send Get Firmware Version Request to SEC.
@param[in, out] MsgGenGetFwVersionAckData Return themessage of FW version.
@retval EFI_UNSUPPORTED Current SEC mode doesn't support this function.
@retval EFI_SUCCESS Command succeeded.
@retval EFI_DEVICE_ERROR HECI Device error, command aborts abnormally.
@retval EFI_TIMEOUT HECI does not return the buffer before timeout.
@retval EFI_BUFFER_TOO_SMALL Message Buffer is too smallfor the Acknowledge.
**/
EFI_STATUS
HeciGetFwVersion (
IN OUT GEN_GET_FW_VER_ACK_DATA *MsgGenGetFwVersionAckData
)
{
EFI_STATUS Status;
GEN_GET_FW_VER_ACK MsgGenGetFwVersionAck;
Status = PeiHeciGetFwVersionMsg (&MsgGenGetFwVersionAck);
if (EFI_ERROR (Status)) {
return Status;
}
if ((MsgGenGetFwVersionAck.MKHIHeader.Fields.Command == GEN_GET_FW_VERSION_CMD) &&
(MsgGenGetFwVersionAck.MKHIHeader.Fields.IsResponse == 1) &&
(MsgGenGetFwVersionAck.MKHIHeader.Fields.Result == 0)) {
*MsgGenGetFwVersionAckData = MsgGenGetFwVersionAck.Data;
}
return EFI_SUCCESS;
}
/**
Host client gets Firmware update info from SEC client.
@param[in, out] SECCapability Structure of FirmwareUpdateInfo.
@retval EFI_SUCCESS Command succeeded.
**/
EFI_STATUS
HeciGetSeCFwInfo (
IN OUT SEC_CAP *SECCapability
)
{
return EFI_SUCCESS;
}
/**
Dummy return for SeC signal event use.
@param[in] Event The event that triggered this notification function.
@param[in] ParentImageHandle Pointer to the notification functions context.
@retval EFI_SUCCESS Always return EFI_SUCCESS.
**/
EFI_STATUS
SeCEmptyEvent (
EFI_EVENT Event,
void *ParentImageHandle
)
{
return EFI_SUCCESS;
}
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