x86/entry: Add C code for fast system call entries
authorAndy Lutomirski <luto@kernel.org>
Tue, 6 Oct 2015 00:48:10 +0000 (17:48 -0700)
committerIngo Molnar <mingo@kernel.org>
Fri, 9 Oct 2015 07:41:09 +0000 (09:41 +0200)
commit710246df58041106b7de645f4b45770f8a59a269
tree2a6809135079d9ff4854620f966c16a8dee69aef
parentee08c6bd315e70756ad2c47ee6ea708a4a882b55
x86/entry: Add C code for fast system call entries

This handles both SYSENTER and SYSCALL.  The asm glue will take
care of the differences.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/6041a58a9b8ef6d2522ab4350deb1a1945eb563f.1444091585.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/entry/common.c