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Diffstat (limited to 'ReferenceCode/ME/Library/MeKernel/Pei/HeciMsgLibPei.c')
| -rw-r--r-- | ReferenceCode/ME/Library/MeKernel/Pei/HeciMsgLibPei.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/ReferenceCode/ME/Library/MeKernel/Pei/HeciMsgLibPei.c b/ReferenceCode/ME/Library/MeKernel/Pei/HeciMsgLibPei.c new file mode 100644 index 0000000..905020b --- /dev/null +++ b/ReferenceCode/ME/Library/MeKernel/Pei/HeciMsgLibPei.c @@ -0,0 +1,185 @@ +/** @file + Implementation file for Heci Message functionality + +@copyright + Copyright (c) 2010 - 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 "CoreBiosMsg.h" +#include "HeciMsgLibPei.h" +#include EFI_PPI_CONSUMER (Wdt) + +#endif + +/** + Start Watch Dog Timer HECI message + + @param[in] PeiServices General purpose services available to every PEIM. + @param[in] HeciPpi The pointer to HECI PPI + @param[in] HeciMemBar HECI Memory BAR + @param[in] WaitTimerBios The value of waiting limit + + @exception EFI_UNSUPPORTED Current ME 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 +**/ +EFI_STATUS +PeiHeciAsfStartWatchDog ( + IN EFI_PEI_SERVICES **PeiServices, + IN PEI_HECI_PPI *HeciPpi, + IN UINT32 HeciMemBar, + IN UINT16 WaitTimerBios + ) +{ + EFI_STATUS Status; + ASF_START_WDT AsfStartWdt; + UINT32 HeciLength; + UINT32 MeMode; + + Status = HeciPpi->GetMeMode (PeiServices, &MeMode); + if (EFI_ERROR (Status) || (MeMode != ME_MODE_NORMAL)) { + return EFI_UNSUPPORTED; + } + /// + /// Clear Start Watch Dog Timer HECI message + /// + ZeroMem ((VOID *) &AsfStartWdt, sizeof (ASF_START_WDT)); + + AsfStartWdt.Command = ASF_MANAGEMENT_CONTROL; + AsfStartWdt.ByteCount = START_WDT_BYTE_COUNT; + AsfStartWdt.SubCommand = ASF_SUB_COMMAND_START_WDT; + AsfStartWdt.VersionNumber = START_WDT_VERSION_NUMBER; + AsfStartWdt.TimeoutLow = (UINT8) WaitTimerBios; + AsfStartWdt.TimeoutHigh = (UINT8) (WaitTimerBios >> 8); + AsfStartWdt.EventSensorType = START_WDT_EVENT_SENSOR_TYPE; + AsfStartWdt.EventType = START_WDT_EVENT_TYPE; + AsfStartWdt.EventOffset = START_WDT_EVENT_OFFSET; + AsfStartWdt.EventSourceType = START_WDT_EVENT_SOURCE_TYPE_BIOS; + AsfStartWdt.EventSeverity = START_WDT_EVENT_SEVERITY; + AsfStartWdt.SensorDevice = START_WDT_SENSOR_DEVICE; + AsfStartWdt.SensorNumber = START_WDT_SENSOR_NUMBER; + AsfStartWdt.Entity = START_WDT_ENTITY; + AsfStartWdt.EntityInstance = START_WDT_ENTITY_INSTANCE; + AsfStartWdt.EventData[0] = START_WDT_EVENT_DATA_BYTE_0; + AsfStartWdt.EventData[1] = START_WDT_EVENT_DATA_BYTE_1_BIOS_TIMEOUT; + + HeciLength = ASF_START_WDT_LENGTH; + + Status = HeciPpi->SendMsg ( + PeiServices, + HeciPpi, + (UINT32 *) &AsfStartWdt, + HeciMemBar, + HeciLength, + BIOS_FIXED_HOST_ADDR, + HECI_ASF_MESSAGE_ADDR + ); + + return Status; +} + +/** + Send Core BIOS Reset Request Message through HECI to reset the system. + + @param[in] PeiServices General purpose services available to every PEIM. + @param[in] ResetOrigin Reset source + @param[in] ResetType Global or Host reset + + @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 +**/ +EFI_STATUS +PeiHeciSendCbmResetRequest ( + IN EFI_PEI_SERVICES **PeiServices, + IN UINT8 ResetOrigin, + IN UINT8 ResetType + ) +{ + EFI_STATUS Status; + PEI_HECI_PPI *HeciPpi; + CBM_RESET_REQ CbmResetRequest; + UINT32 HeciLength; + UINT32 HeciMemBar; + PLATFORM_ME_HOOK_PPI *PlatformMeHookPpi; + EFI_GUID WdtPpiGuid = WDT_PPI_GUID; + WDT_PPI *WdtPpi; + + Status = PeiServicesLocatePpi ( + &gPlatformMeHookPpiGuid, // GUID + 0, // INSTANCE + NULL, // EFI_PEI_PPI_DESCRIPTOR + (VOID **) &PlatformMeHookPpi // PPI + ); + if (EFI_ERROR (Status)) { + DEBUG ((EFI_D_ERROR, "Unable to Locate PlatformMeHook Protocol for Global Reset Hook, so skip instead.", Status)); + } else { + PlatformMeHookPpi->PreGlobalReset (PeiServices, PlatformMeHookPpi); + } + + Status = PeiServicesLocatePpi ( + &gPeiHeciPpiGuid, // GUID + 0, // INSTANCE + NULL, // EFI_PEI_PPI_DESCRIPTOR + (VOID **) &HeciPpi // PPI + ); + ASSERT_EFI_ERROR (Status); + + Status = HeciPpi->InitializeHeci (PeiServices, HeciPpi, &HeciMemBar); + if (EFI_ERROR (Status)) { + return Status; + } + + CbmResetRequest.MKHIHeader.Data = 0; + CbmResetRequest.MKHIHeader.Fields.Command = CBM_RESET_REQ_CMD; + CbmResetRequest.MKHIHeader.Fields.IsResponse = 0; + CbmResetRequest.MKHIHeader.Fields.GroupId = MKHI_CBM_GROUP_ID; + CbmResetRequest.MKHIHeader.Fields.Reserved = 0; + CbmResetRequest.MKHIHeader.Fields.Result = 0; + CbmResetRequest.Data.RequestOrigin = CBM_RR_REQ_ORIGIN_BIOS_MEMORY_INIT; + CbmResetRequest.Data.ResetType = CBM_HRR_GLOBAL_RESET; + + HeciLength = sizeof (CBM_RESET_REQ); + + Status = PeiServicesLocatePpi ( + &WdtPpiGuid, // GUID + 0, // INSTANCE + NULL, // EFI_PEI_PPI_DESCRIPTOR + (VOID **) &WdtPpi // PPI + ); + ASSERT_EFI_ERROR (Status); + WdtPpi->AllowKnownReset (); + + Status = HeciPpi->SendMsg ( + PeiServices, + HeciPpi, + (UINT32 *) &CbmResetRequest, + HeciMemBar, + HeciLength, + BIOS_FIXED_HOST_ADDR, + HECI_CORE_MESSAGE_ADDR + ); + + return Status; +} |