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Subject[PATCH 5.1 105/138] Documentation/admin: Remove the vsyscall=native documentation
From: Andy Lutomirski <>

commit d974ffcfb7447db5f29a4b662a3eaf99a4e1109e upstream.

The vsyscall=native feature is gone -- remove the docs.

Fixes: 076ca272a14c ("x86/vsyscall/64: Drop "native" vsyscalls")
Signed-off-by: Andy Lutomirski <>
Signed-off-by: Thomas Gleixner <>
Acked-by: Kees Cook <>
Cc: Florian Weimer <>
Cc: Jann Horn <>
Cc: Borislav Petkov <>
Cc: Kernel Hardening <>
Cc: Peter Zijlstra <>
Signed-off-by: Greg Kroah-Hartman <>

Documentation/admin-guide/kernel-parameters.txt | 6 ------
1 file changed, 6 deletions(-)

--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5074,12 +5074,6 @@
emulate [default] Vsyscalls turn into traps and are
emulated reasonably safely.

- native Vsyscalls are native syscall instructions.
- This is a little bit faster than trapping
- and makes a few dynamic recompilers work
- better than they would in emulation mode.
- It also makes exploits much easier to write.
none Vsyscalls don't work at all. This makes
them quite hard to use for exploits but
might break your system.

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