diff options
| author | Chang S. Bae <[email protected]> | 2019-05-08 03:02:23 -0700 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2019-06-22 11:38:53 +0200 |
| commit | f60a83df4593c5e03e746ded66d8b436c4ad6e41 (patch) | |
| tree | e55d1c124a87c27558089966dce2a9f6276d6b68 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 1ab5f3f7fe3d7548b4361b68c1fed140c6841af9 (diff) | |
x86/process/64: Use FSGSBASE instructions on thread copy and ptrace
When FSGSBASE is enabled, copying threads and reading fsbase and gsbase
using ptrace must read the actual values.
When copying a thread, use save_fsgs() and copy the saved values. For
ptrace, the bases must be read from memory regardless of the selector if
FSGSBASE is enabled.
[ tglx: Invoke __rdgsbase_inactive() with interrupts disabled ]
[ luto: Massage changelog ]
Suggested-by: Andy Lutomirski <[email protected]>
Signed-off-by: Chang S. Bae <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: "H . Peter Anvin" <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ravi Shankar <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions