NtLoadEnclaveData - NtDoc

#ifndef _NTMMAPI_H
//
// Enclave support
//
#if (PHNT_VERSION >= PHNT_WINDOWS_10)

/**
 * Loads data into an uninitialized enclave that you created by calling NtCreateEnclave.
 *
 * @param ProcessHandle A handle to the process for which the enclave was created.
 * @param BaseAddress The address in the enclave where you want to load the data.
 * @param Buffer A pointer to the data the you want to load into the enclave.
 * @param BufferSize The size of the data that you want to load into the enclave, in bytes. This value must be a whole-number multiple of the page size.
 * @param Protect The memory protection to use for the pages that you want to add to the enclave.
 * @param PageInformation A pointer to information that describes the pages that you want to add to the enclave.
 * @param PageInformationLength The length of the structure that the PageInformation parameter points to, in bytes.
 * @param NumberOfBytesWritten A pointer to a variable that receives the number of bytes that NtLoadEnclaveData copied into the enclave.
 * @param EnclaveError An optional pointer to a variable that receives an enclave error code that is architecture-specific. 
 * @return NTSTATUS Successful or errant status.
 * @see https://learn.microsoft.com/en-us/windows/win32/api/enclaveapi/nf-enclaveapi-loadenclavedata
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtLoadEnclaveData(
    _In_ HANDLE ProcessHandle,
    _In_ PVOID BaseAddress,
    _In_reads_bytes_(BufferSize) PVOID Buffer,
    _In_ SIZE_T BufferSize,
    _In_ ULONG Protect,
    _In_reads_bytes_(PageInformationLength) PVOID PageInformation,
    _In_ ULONG PageInformationLength,
    _Out_opt_ PSIZE_T NumberOfBytesWritten,
    _Out_opt_ PULONG EnclaveError
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwLoadEnclaveData(
    _In_ HANDLE ProcessHandle,
    _In_ PVOID BaseAddress,
    _In_reads_bytes_(BufferSize) PVOID Buffer,
    _In_ SIZE_T BufferSize,
    _In_ ULONG Protect,
    _In_reads_bytes_(PageInformationLength) PVOID PageInformation,
    _In_ ULONG PageInformationLength,
    _Out_opt_ PSIZE_T NumberOfBytesWritten,
    _Out_opt_ PULONG EnclaveError
    );

#endif
View code on GitHub