| 1 | /** @file
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| 2 | Defines the interface to convey performance information from SEC phase to PEI.
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| 3 |
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| 4 | Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
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| 5 |
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 |
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| 8 | **/
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| 9 |
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| 10 | #ifndef _PEI_SEC_PERFORMANCE_PPI_H_
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| 11 | #define _PEI_SEC_PERFORMANCE_PPI_H_
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| 12 |
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| 13 | #define PEI_SEC_PERFORMANCE_PPI_GUID \
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| 14 | { \
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| 15 | 0x0ecc666b, 0x4662, 0x47f9, {0x9d, 0xd5, 0xd0, 0x96, 0xff, 0x7d, 0xa4, 0x9e } \
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| 16 | }
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| 17 |
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| 18 | typedef struct _PEI_SEC_PERFORMANCE_PPI PEI_SEC_PERFORMANCE_PPI;
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| 19 |
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| 20 | ///
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| 21 | /// Performance data collected in SEC phase.
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| 22 | ///
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| 23 | typedef struct {
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| 24 | UINT64 ResetEnd; ///< Timer value logged at the beginning of firmware image execution, in unit of nanosecond.
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| 25 | } FIRMWARE_SEC_PERFORMANCE;
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| 26 |
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| 27 | /**
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| 28 | This interface conveys performance information out of the Security (SEC) phase into PEI.
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| 29 |
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| 30 | This service is published by the SEC phase. The SEC phase handoff has an optional
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| 31 | EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the
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| 32 | PEI Foundation. As such, if the platform supports collecting performance data in SEC,
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| 33 | this information is encapsulated into the data structure abstracted by this service.
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| 34 | This information is collected for the boot-strap processor (BSP) on IA-32.
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| 35 |
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| 36 | @param[in] PeiServices The pointer to the PEI Services Table.
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| 37 | @param[in] This The pointer to this instance of the PEI_SEC_PERFORMANCE_PPI.
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| 38 | @param[out] Performance The pointer to performance data collected in SEC phase.
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| 39 |
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| 40 | @retval EFI_SUCCESS The performance data was successfully returned.
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| 41 |
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| 42 | **/
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| 43 | typedef
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| 44 | EFI_STATUS
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| 45 | (EFIAPI *GET_SEC_PERFORMANCE)(
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| 46 | IN CONST EFI_PEI_SERVICES **PeiServices,
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| 47 | IN PEI_SEC_PERFORMANCE_PPI *This,
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| 48 | OUT FIRMWARE_SEC_PERFORMANCE *Performance
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| 49 | );
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| 50 |
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| 51 | ///
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| 52 | /// This PPI provides function to get performance data collected in SEC phase.
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| 53 | ///
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| 54 | struct _PEI_SEC_PERFORMANCE_PPI {
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| 55 | GET_SEC_PERFORMANCE GetPerformance;
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| 56 | };
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| 57 |
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| 58 | extern EFI_GUID gPeiSecPerformancePpiGuid;
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| 59 |
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| 60 | #endif
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