1*f80ad8b4SAndroid Build Coastguard Worker /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*f80ad8b4SAndroid Build Coastguard Worker #ifndef _UAPI_LINUX_MEMFD_H 3*f80ad8b4SAndroid Build Coastguard Worker #define _UAPI_LINUX_MEMFD_H 4*f80ad8b4SAndroid Build Coastguard Worker 5*f80ad8b4SAndroid Build Coastguard Worker #include <asm-generic/hugetlb_encode.h> 6*f80ad8b4SAndroid Build Coastguard Worker 7*f80ad8b4SAndroid Build Coastguard Worker /* flags for memfd_create(2) (unsigned int) */ 8*f80ad8b4SAndroid Build Coastguard Worker #define MFD_CLOEXEC 0x0001U 9*f80ad8b4SAndroid Build Coastguard Worker #define MFD_ALLOW_SEALING 0x0002U 10*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGETLB 0x0004U 11*f80ad8b4SAndroid Build Coastguard Worker /* not executable and sealed to prevent changing to executable. */ 12*f80ad8b4SAndroid Build Coastguard Worker #define MFD_NOEXEC_SEAL 0x0008U 13*f80ad8b4SAndroid Build Coastguard Worker /* executable */ 14*f80ad8b4SAndroid Build Coastguard Worker #define MFD_EXEC 0x0010U 15*f80ad8b4SAndroid Build Coastguard Worker 16*f80ad8b4SAndroid Build Coastguard Worker /* 17*f80ad8b4SAndroid Build Coastguard Worker * Huge page size encoding when MFD_HUGETLB is specified, and a huge page 18*f80ad8b4SAndroid Build Coastguard Worker * size other than the default is desired. See hugetlb_encode.h. 19*f80ad8b4SAndroid Build Coastguard Worker * All known huge page size encodings are provided here. It is the 20*f80ad8b4SAndroid Build Coastguard Worker * responsibility of the application to know which sizes are supported on 21*f80ad8b4SAndroid Build Coastguard Worker * the running system. See mmap(2) man page for details. 22*f80ad8b4SAndroid Build Coastguard Worker */ 23*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 24*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 25*f80ad8b4SAndroid Build Coastguard Worker 26*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 27*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 28*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 29*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 30*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 31*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 32*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 33*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 34*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 35*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 36*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 37*f80ad8b4SAndroid Build Coastguard Worker #define MFD_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 38*f80ad8b4SAndroid Build Coastguard Worker 39*f80ad8b4SAndroid Build Coastguard Worker #endif /* _UAPI_LINUX_MEMFD_H */ 40