/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _LINUX_MEMFD_H #define _LINUX_MEMFD_H #include <asm-generic/hugetlb_encode.h> /* flags for memfd_create(2) (unsigned int) */ #define MFD_CLOEXEC 0x0001U #define MFD_ALLOW_SEALING 0x0002U #define MFD_HUGETLB 0x0004U /* not executable and sealed to prevent changing to executable. */ #define MFD_NOEXEC_SEAL 0x0008U /* executable */ #define MFD_EXEC 0x0010U /* * Huge page size encoding when MFD_HUGETLB is specified, and a huge page * size other than the default is desired. See hugetlb_encode.h. * All known huge page size encodings are provided here. It is the * responsibility of the application to know which sizes are supported on * the running system. See mmap(2) man page for details. */ #define MFD_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT #define MFD_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK #define MFD_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB #define MFD_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB #define MFD_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB #define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB #define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB #endif /* _LINUX_MEMFD_H */