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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/kvm/include/numaif.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/kvm/include/numaif.h')
-rw-r--r-- | tools/testing/selftests/kvm/include/numaif.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/numaif.h b/tools/testing/selftests/kvm/include/numaif.h new file mode 100644 index 0000000000..b020547403 --- /dev/null +++ b/tools/testing/selftests/kvm/include/numaif.h @@ -0,0 +1,55 @@ +/* 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 */ |