Commit-ID: d974ffcfb7447db5f29a4b662a3eaf99a4e1109e Gitweb: https://git.kernel.org/tip/d974ffcfb7447db5f29a4b662a3eaf99a4e1109e Author: Andy Lutomirski <luto@xxxxxxxxxx> AuthorDate: Wed, 26 Jun 2019 21:45:02 -0700 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Fri, 28 Jun 2019 00:04:38 +0200 Documentation/admin: Remove the vsyscall=native documentation The vsyscall=native feature is gone -- remove the docs. Fixes: 076ca272a14c ("x86/vsyscall/64: Drop "native" vsyscalls") Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Acked-by: Kees Cook <keescook@xxxxxxxxxxxx> Cc: Florian Weimer <fweimer@xxxxxxxxxx> Cc: Jann Horn <jannh@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Kernel Hardening <kernel-hardening@xxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/d77c7105eb4c57c1a95a95b6a5b8ba194a18e764.1561610354.git.luto@xxxxxxxxxx --- 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 138f6664b2e2..0082d1e56999 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -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.