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authorAndy Lutomirski <luto@kernel.org>2019-06-26 21:45:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-14 08:11:18 +0200
commita2a24b57c27ab039122d447940be7d346f9bbdaf (patch)
treeb9724e301d8c069c8e3ac2a18a02620d4755353b
parent8a815007f5fe292fa8ef082663e1259b9ae0571b (diff)
Documentation/admin: Remove the vsyscall=native documentation
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 <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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt6
1 files changed, 0 insertions, 6 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a29301d6e6c6..1cee1174cde6 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4976,12 +4976,6 @@
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.