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61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
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/** @file
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Defines the interface to convey performance information from SEC phase to PEI.
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Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _PEI_SEC_PERFORMANCE_PPI_H_
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#define _PEI_SEC_PERFORMANCE_PPI_H_
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#define PEI_SEC_PERFORMANCE_PPI_GUID \
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{ \
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0x0ecc666b, 0x4662, 0x47f9, {0x9d, 0xd5, 0xd0, 0x96, 0xff, 0x7d, 0xa4, 0x9e } \
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}
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typedef struct _PEI_SEC_PERFORMANCE_PPI PEI_SEC_PERFORMANCE_PPI;
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///
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/// Performance data collected in SEC phase.
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///
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typedef struct {
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UINT64 ResetEnd; ///< Timer value logged at the beginning of firmware image execution, in unit of nanosecond.
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} FIRMWARE_SEC_PERFORMANCE;
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/**
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This interface conveys performance information out of the Security (SEC) phase into PEI.
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This service is published by the SEC phase. The SEC phase handoff has an optional
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EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the
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PEI Foundation. As such, if the platform supports collecting performance data in SEC,
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this information is encapsulated into the data structure abstracted by this service.
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This information is collected for the boot-strap processor (BSP) on IA-32.
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@param[in] PeiServices The pointer to the PEI Services Table.
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@param[in] This The pointer to this instance of the PEI_SEC_PERFORMANCE_PPI.
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@param[out] Performance The pointer to performance data collected in SEC phase.
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@retval EFI_SUCCESS The performance data was successfully returned.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *GET_SEC_PERFORMANCE) (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN PEI_SEC_PERFORMANCE_PPI *This,
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OUT FIRMWARE_SEC_PERFORMANCE *Performance
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);
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///
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/// This PPI provides function to get performance data collected in SEC phase.
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///
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struct _PEI_SEC_PERFORMANCE_PPI {
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GET_SEC_PERFORMANCE GetPerformance;
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};
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extern EFI_GUID gPeiSecPerformancePpiGuid;
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#endif
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