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241 lines
12 KiB
C
241 lines
12 KiB
C
/** @file
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The NvmExpressPei driver is used to manage non-volatile memory subsystem
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which follows NVM Express specification at PEI phase.
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Copyright (c) 2019, 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 _NVM_EXPRESS_PEI_STORAGE_SECURITY_H_
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#define _NVM_EXPRESS_PEI_STORAGE_SECURITY_H_
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/**
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Gets the count of storage security devices that one specific driver detects.
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@param[in] This The PPI instance pointer.
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@param[out] NumberofDevices The number of storage security devices discovered.
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@retval EFI_SUCCESS The operation performed successfully.
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@retval EFI_INVALID_PARAMETER The parameters are invalid.
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**/
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EFI_STATUS
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EFIAPI
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NvmeStorageSecurityGetDeviceNo (
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IN EDKII_PEI_STORAGE_SECURITY_CMD_PPI *This,
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OUT UINTN *NumberofDevices
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);
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/**
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Gets the device path of a specific storage security device.
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@param[in] This The PPI instance pointer.
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@param[in] DeviceIndex Specifies the storage security device to which
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the function wants to talk. Because the driver
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that implements Storage Security Command PPIs
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will manage multiple storage devices, the PPIs
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that want to talk to a single device must specify
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the device index that was assigned during the
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enumeration process. This index is a number from
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one to NumberofDevices.
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@param[out] DevicePathLength The length of the device path in bytes specified
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by DevicePath.
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@param[out] DevicePath The device path of storage security device.
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This field re-uses EFI Device Path Protocol as
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defined by Section 10.2 EFI Device Path Protocol
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of UEFI 2.7 Specification.
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@retval EFI_SUCCESS The operation succeeds.
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@retval EFI_INVALID_PARAMETER DevicePathLength or DevicePath is NULL.
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@retval EFI_NOT_FOUND The specified storage security device not found.
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@retval EFI_OUT_OF_RESOURCES The operation fails due to lack of resources.
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**/
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EFI_STATUS
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EFIAPI
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NvmeStorageSecurityGetDevicePath (
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IN EDKII_PEI_STORAGE_SECURITY_CMD_PPI *This,
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IN UINTN DeviceIndex,
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OUT UINTN *DevicePathLength,
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OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
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);
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/**
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Send a security protocol command to a device that receives data and/or the result
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of one or more commands sent by SendData.
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The ReceiveData function sends a security protocol command to the given DeviceIndex.
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The security protocol command sent is defined by SecurityProtocolId and contains
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the security protocol specific data SecurityProtocolSpecificData. The function
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returns the data from the security protocol command in PayloadBuffer.
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For devices supporting the SCSI command set, the security protocol command is sent
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using the SECURITY PROTOCOL IN command defined in SPC-4.
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For devices supporting the ATA command set, the security protocol command is sent
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using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
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is non-zero.
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If the PayloadBufferSize is zero, the security protocol command is sent using the
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Trusted Non-Data command defined in ATA8-ACS.
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If PayloadBufferSize is too small to store the available data from the security
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protocol command, the function shall copy PayloadBufferSize bytes into the
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PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.
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If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
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the function shall return EFI_INVALID_PARAMETER.
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If the given DeviceIndex does not support security protocol commands, the function
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shall return EFI_UNSUPPORTED.
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If the security protocol fails to complete within the Timeout period, the function
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shall return EFI_TIMEOUT.
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If the security protocol command completes without an error, the function shall
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return EFI_SUCCESS. If the security protocol command completes with an error, the
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function shall return EFI_DEVICE_ERROR.
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@param[in] This The PPI instance pointer.
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@param[in] DeviceIndex Specifies the storage security device to which the
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function wants to talk. Because the driver that
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implements Storage Security Command PPIs will manage
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multiple storage devices, the PPIs that want to talk
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to a single device must specify the device index
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that was assigned during the enumeration process.
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This index is a number from one to NumberofDevices.
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@param[in] Timeout The timeout, in 100ns units, to use for the execution
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of the security protocol command. A Timeout value
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of 0 means that this function will wait indefinitely
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for the security protocol command to execute. If
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Timeout is greater than zero, then this function
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will return EFI_TIMEOUT if the time required to
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execute the receive data command is greater than
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Timeout.
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@param[in] SecurityProtocolId
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The value of the "Security Protocol" parameter of
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the security protocol command to be sent.
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@param[in] SecurityProtocolSpecificData
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The value of the "Security Protocol Specific"
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parameter of the security protocol command to be
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sent.
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@param[in] PayloadBufferSize
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Size in bytes of the payload data buffer.
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@param[out] PayloadBuffer A pointer to a destination buffer to store the
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security protocol command specific payload data
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for the security protocol command. The caller is
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responsible for having either implicit or explicit
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ownership of the buffer.
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@param[out] PayloadTransferSize
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A pointer to a buffer to store the size in bytes
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of the data written to the payload data buffer.
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@retval EFI_SUCCESS The security protocol command completed
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successfully.
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@retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to
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store the available data from the device.
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The PayloadBuffer contains the truncated
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data.
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@retval EFI_UNSUPPORTED The given DeviceIndex does not support
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security protocol commands.
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@retval EFI_DEVICE_ERROR The security protocol command completed
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with an error.
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@retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize
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is NULL and PayloadBufferSize is non-zero.
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@retval EFI_TIMEOUT A timeout occurred while waiting for the
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security protocol command to execute.
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**/
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EFI_STATUS
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EFIAPI
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NvmeStorageSecurityReceiveData (
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IN EDKII_PEI_STORAGE_SECURITY_CMD_PPI *This,
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IN UINTN DeviceIndex,
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IN UINT64 Timeout,
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IN UINT8 SecurityProtocolId,
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IN UINT16 SecurityProtocolSpecificData,
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IN UINTN PayloadBufferSize,
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OUT VOID *PayloadBuffer,
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OUT UINTN *PayloadTransferSize
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);
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/**
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Send a security protocol command to a device.
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The SendData function sends a security protocol command containing the payload
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PayloadBuffer to the given DeviceIndex. The security protocol command sent is
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defined by SecurityProtocolId and contains the security protocol specific data
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SecurityProtocolSpecificData. If the underlying protocol command requires a
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specific padding for the command payload, the SendData function shall add padding
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bytes to the command payload to satisfy the padding requirements.
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For devices supporting the SCSI command set, the security protocol command is
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sent using the SECURITY PROTOCOL OUT command defined in SPC-4.
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For devices supporting the ATA command set, the security protocol command is
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sent using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize
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is non-zero. If the PayloadBufferSize is zero, the security protocol command
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is sent using the Trusted Non-Data command defined in ATA8-ACS.
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If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall
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return EFI_INVALID_PARAMETER.
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If the given DeviceIndex does not support security protocol commands, the function
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shall return EFI_UNSUPPORTED.
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If the security protocol fails to complete within the Timeout period, the function
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shall return EFI_TIMEOUT.
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If the security protocol command completes without an error, the function shall
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return EFI_SUCCESS. If the security protocol command completes with an error,
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the functio shall return EFI_DEVICE_ERROR.
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@param[in] This The PPI instance pointer.
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@param[in] DeviceIndex The ID of the device.
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@param[in] Timeout The timeout, in 100ns units, to use for the execution
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of the security protocol command. A Timeout value
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of 0 means that this function will wait indefinitely
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for the security protocol command to execute. If
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Timeout is greater than zero, then this function
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will return EFI_TIMEOUT if the time required to
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execute the receive data command is greater than
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Timeout.
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@param[in] SecurityProtocolId
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The value of the "Security Protocol" parameter of
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the security protocol command to be sent.
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@param[in] SecurityProtocolSpecificData
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The value of the "Security Protocol Specific"
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parameter of the security protocol command to be
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sent.
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@param[in] PayloadBufferSize Size in bytes of the payload data buffer.
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@param[in] PayloadBuffer A pointer to a destination buffer to store the
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security protocol command specific payload data
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for the security protocol command.
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@retval EFI_SUCCESS The security protocol command completed successfully.
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@retval EFI_UNSUPPORTED The given DeviceIndex does not support security
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protocol commands.
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@retval EFI_DEVICE_ERROR The security protocol command completed with
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an error.
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@retval EFI_INVALID_PARAMETER The PayloadBuffer is NULL and PayloadBufferSize
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is non-zero.
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@retval EFI_TIMEOUT A timeout occurred while waiting for the security
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protocol command to execute.
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**/
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EFI_STATUS
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EFIAPI
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NvmeStorageSecuritySendData (
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IN EDKII_PEI_STORAGE_SECURITY_CMD_PPI *This,
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IN UINTN DeviceIndex,
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IN UINT64 Timeout,
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IN UINT8 SecurityProtocolId,
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IN UINT16 SecurityProtocolSpecificData,
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IN UINTN PayloadBufferSize,
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IN VOID *PayloadBuffer
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);
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#endif
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