NtAllocateUserPhysicalPages - NtDoc

#ifndef _NTMMAPI_H
// User physical pages
#if (PHNT_MODE != PHNT_MODE_KERNEL)

NTSYSCALLAPI
NTSTATUS
NTAPI
NtAllocateUserPhysicalPages(
    _In_ HANDLE ProcessHandle,
    _Inout_ PULONG_PTR NumberOfPages,
    _Out_writes_(*NumberOfPages) PULONG_PTR UserPfnArray
    );

#endif
#endif
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#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwAllocateUserPhysicalPages(
    _In_ HANDLE ProcessHandle,
    _Inout_ PULONG_PTR NumberOfPages,
    _Out_writes_(*NumberOfPages) PULONG_PTR UserPfnArray
    );

#endif
View code on GitHub