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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * tools/testing/selftests/kvm/include/numaif.h4 *5 * Copyright (C) 2020, Google LLC.6 *7 * This work is licensed under the terms of the GNU GPL, version 2.8 *9 * Header file that provides access to NUMA API functions not explicitly10 * exported to user space.11 */12 13#ifndef SELFTEST_KVM_NUMAIF_H14#define SELFTEST_KVM_NUMAIF_H15 16#define __NR_get_mempolicy 23917#define __NR_migrate_pages 25618 19/* System calls */20long get_mempolicy(int *policy, const unsigned long *nmask,21 unsigned long maxnode, void *addr, int flags)22{23 return syscall(__NR_get_mempolicy, policy, nmask,24 maxnode, addr, flags);25}26 27long migrate_pages(int pid, unsigned long maxnode,28 const unsigned long *frommask,29 const unsigned long *tomask)30{31 return syscall(__NR_migrate_pages, pid, maxnode, frommask, tomask);32}33 34/* Policies */35#define MPOL_DEFAULT 036#define MPOL_PREFERRED 137#define MPOL_BIND 238#define MPOL_INTERLEAVE 339 40#define MPOL_MAX MPOL_INTERLEAVE41 42/* Flags for get_mem_policy */43#define MPOL_F_NODE (1<<0) /* return next il node or node of address */44 /* Warning: MPOL_F_NODE is unsupported and45 * subject to change. Don't use.46 */47#define MPOL_F_ADDR (1<<1) /* look up vma using address */48#define MPOL_F_MEMS_ALLOWED (1<<2) /* query nodes allowed in cpuset */49 50/* Flags for mbind */51#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */52#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform to mapping */53#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to mapping */54 55#endif /* SELFTEST_KVM_NUMAIF_H */56