NtFreeUserPhysicalPages - NtDoc

#ifndef _NTMMAPI_H
#if (PHNT_MODE != PHNT_MODE_KERNEL)

/**
 * Frees physical memory pages that are allocated previously by using NtAllocateUserPhysicalPages.
 *
 * \param ProcessHandle A handle to the process. The function frees memory within the virtual address space of this process.
 * \param NumberOfPages The size of the physical memory to free, in pages. On return, if the function fails, this parameter indicates the number of pages that are freed.
 * \param UserPfnArray A pointer to an array of page frame numbers of the allocated memory to be freed.
 * \return NTSTATUS Successful or errant status.
 * \sa https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-freeuserphysicalpages
 */
NTSYSCALLAPI
NTSTATUS
NTAPI
NtFreeUserPhysicalPages(
    _In_ HANDLE ProcessHandle,
    _Inout_ PULONG_PTR NumberOfPages,
    _In_reads_(*NumberOfPages) PULONG_PTR UserPfnArray
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwFreeUserPhysicalPages(
    _In_ HANDLE ProcessHandle,
    _Inout_ PULONG_PTR NumberOfPages,
    _In_reads_(*NumberOfPages) PULONG_PTR UserPfnArray
    );

#endif
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