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authorArnaldo Carvalho de Melo <acme@redhat.com>2018-06-01 10:42:31 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-06-01 16:13:15 -0300
commit63b89a19cc9ef911dcc64d41b60930c346eee0c0 (patch)
tree7a25802028bc0a03e9229558df4d1829d02605df
parent0d690fc043f17fe7afab4b3dd9a57ffa07bc8064 (diff)
tools headers: Synchronize prctl.h ABI header
To pick up changes from: $ git log --oneline -2 -i include/uapi/linux/prctl.h 356e4bfff2c5 prctl: Add force disable speculation b617cfc85816 prctl: Add speculation control prctls $ tools/perf/trace/beauty/prctl_option.sh > before.c $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ tools/perf/trace/beauty/prctl_option.sh > after.c $ diff -u before.c after.c --- before.c 2018-06-01 10:39:53.834073962 -0300 +++ after.c 2018-06-01 10:42:11.307985394 -0300 @@ -35,6 +35,8 @@ [42] = "GET_THP_DISABLE", [45] = "SET_FP_MODE", [46] = "GET_FP_MODE", + [52] = "GET_SPECULATION_CTRL", + [53] = "SET_SPECULATION_CTRL", }; static const char *prctl_set_mm_options[] = { [1] = "START_CODE", $ This will be used by 'perf trace' to show these strings when beautifying the prctl syscall args. At some point we'll be able to say something like: 'perf trace --all-cpus -e prctl(option=*SPEC*)' To filter by arg by name. This silences this warning when building tools/perf: Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-zztsptwhc264r8wg44tqh5gp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/include/uapi/linux/prctl.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index af5f8c2df87a..db9f15f5db04 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -207,4 +207,16 @@ struct prctl_mm_map {
# define PR_SVE_VL_LEN_MASK 0xffff
# define PR_SVE_VL_INHERIT (1 << 17) /* inherit across exec */
+/* Per task speculation control */
+#define PR_GET_SPECULATION_CTRL 52
+#define PR_SET_SPECULATION_CTRL 53
+/* Speculation control variants */
+# define PR_SPEC_STORE_BYPASS 0
+/* Return and control values for PR_SET/GET_SPECULATION_CTRL */
+# define PR_SPEC_NOT_AFFECTED 0
+# define PR_SPEC_PRCTL (1UL << 0)
+# define PR_SPEC_ENABLE (1UL << 1)
+# define PR_SPEC_DISABLE (1UL << 2)
+# define PR_SPEC_FORCE_DISABLE (1UL << 3)
+
#endif /* _LINUX_PRCTL_H */