1*c5c0fdbeSDavid 'Digit' Turner /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*c5c0fdbeSDavid 'Digit' Turner #ifndef _LINUX_MEMFD_H 3*c5c0fdbeSDavid 'Digit' Turner #define _LINUX_MEMFD_H 4*c5c0fdbeSDavid 'Digit' Turner 5*c5c0fdbeSDavid 'Digit' Turner #include <asm-generic/hugetlb_encode.h> 6*c5c0fdbeSDavid 'Digit' Turner 7*c5c0fdbeSDavid 'Digit' Turner /* flags for memfd_create(2) (unsigned int) */ 8*c5c0fdbeSDavid 'Digit' Turner #define MFD_CLOEXEC 0x0001U 9*c5c0fdbeSDavid 'Digit' Turner #define MFD_ALLOW_SEALING 0x0002U 10*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGETLB 0x0004U 11*c5c0fdbeSDavid 'Digit' Turner /* not executable and sealed to prevent changing to executable. */ 12*c5c0fdbeSDavid 'Digit' Turner #define MFD_NOEXEC_SEAL 0x0008U 13*c5c0fdbeSDavid 'Digit' Turner /* executable */ 14*c5c0fdbeSDavid 'Digit' Turner #define MFD_EXEC 0x0010U 15*c5c0fdbeSDavid 'Digit' Turner 16*c5c0fdbeSDavid 'Digit' Turner /* 17*c5c0fdbeSDavid 'Digit' Turner * Huge page size encoding when MFD_HUGETLB is specified, and a huge page 18*c5c0fdbeSDavid 'Digit' Turner * size other than the default is desired. See hugetlb_encode.h. 19*c5c0fdbeSDavid 'Digit' Turner * All known huge page size encodings are provided here. It is the 20*c5c0fdbeSDavid 'Digit' Turner * responsibility of the application to know which sizes are supported on 21*c5c0fdbeSDavid 'Digit' Turner * the running system. See mmap(2) man page for details. 22*c5c0fdbeSDavid 'Digit' Turner */ 23*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 24*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 25*c5c0fdbeSDavid 'Digit' Turner 26*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 27*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 28*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 29*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 30*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 31*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 32*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 33*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 34*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 35*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 36*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 37*c5c0fdbeSDavid 'Digit' Turner #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 38*c5c0fdbeSDavid 'Digit' Turner 39*c5c0fdbeSDavid 'Digit' Turner #endif /* _LINUX_MEMFD_H */ 40