Commit d974ffcf authored Jun 26, 2019 by Andy Lutomirski Committed by Thomas Gleixner Jun 28, 2019

Documentation/admin: Remove the vsyscall=native documentation



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

Fixes: 076ca272 ("x86/vsyscall/64: Drop "native" vsyscalls")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: stable@vger.kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Kernel Hardening <kernel-hardening@lists.openwall.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d77c7105eb4c57c1a95a95b6a5b8ba194a18e764.1561610354.git.luto@kernel.org

parent 4b972a01

Documentation/admin-guide/kernel-parameters.txt

+0 −6

Original line number	Diff line number	Diff line
		@@ -5102,12 +5102,6 @@
		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.

Admin message