The vsyscall=native feature is gone -- remove the docs.
Fixes: 076ca272a14c ("x86/vsyscall/64: Drop "native" vsyscalls") Cc: stable@vger.kernel.org Cc: Kees Cook keescook@chromium.org Cc: Borislav Petkov bp@alien8.de Cc: Kernel Hardening kernel-hardening@lists.openwall.com Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Signed-off-by: Andy Lutomirski luto@kernel.org --- Documentation/admin-guide/kernel-parameters.txt | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 43176340c73d..e1a3525d07f2 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -5086,12 +5086,6 @@ 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.