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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* tools/testing/selftests/kvm/include/numaif.h
*
* Copyright (C) 2020, Google LLC.
*
* This work is licensed under the terms of the GNU GPL, version 2.
*
* Header file that provides access to NUMA API functions not explicitly
* exported to user space.
*/
#ifndef SELFTEST_KVM_NUMAIF_H
#define SELFTEST_KVM_NUMAIF_H
#define __NR_get_mempolicy 239
#define __NR_migrate_pages 256
/* System calls */
long get_mempolicy(int *policy, const unsigned long *nmask,
unsigned long maxnode, void *addr, int flags)
{
return syscall(__NR_get_mempolicy, policy, nmask,
maxnode, addr, flags);
}
long migrate_pages(int pid, unsigned long maxnode,
const unsigned long *frommask,
const unsigned long *tomask)
{
return syscall(__NR_migrate_pages, pid, maxnode, frommask, tomask);
}
/* Policies */
#define MPOL_DEFAULT 0
#define MPOL_PREFERRED 1
#define MPOL_BIND 2
#define MPOL_INTERLEAVE 3
#define MPOL_MAX MPOL_INTERLEAVE
/* Flags for get_mem_policy */
#define MPOL_F_NODE (1<<0) /* return next il node or node of address */
/* Warning: MPOL_F_NODE is unsupported and
* subject to change. Don't use.
*/
#define MPOL_F_ADDR (1<<1) /* look up vma using address */
#define MPOL_F_MEMS_ALLOWED (1<<2) /* query nodes allowed in cpuset */
/* Flags for mbind */
#define MPOL_MF_STRICT (1<<0) /* Verify existing pages in the mapping */
#define MPOL_MF_MOVE (1<<1) /* Move pages owned by this process to conform to mapping */
#define MPOL_MF_MOVE_ALL (1<<2) /* Move every page to conform to mapping */
#endif /* SELFTEST_KVM_NUMAIF_H */
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