From fab1167c4698e3ff11ebb06281d78def6c53728b Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Mon, 15 Aug 2011 22:28:56 -0700
Subject: x86, vsyscall: Add missing <asm/fixmap.h> to arch/x86/mm/fault.c

arch/x86/mm/fault.c now depend on having the symbol VSYSCALL_START
defined, which is best handled by including <asm/fixmap.h> (it isn't
unreasonable we may want other fixed addresses in this file in the
future, and so it is cleaner than including <asm/vsyscall.h>
directly.)

This addresses an x86-64 allnoconfig build failure.  On other
configurations it was masked by an indirect path:

<asm/smp.h> -> <asm/apic.h> -> <asm/fixmap.h> -> <asm/vsyscall.h>

... however, the first such include is conditional on CONFIG_X86_LOCAL_APIC.

Originally-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/CA%2B55aFxsOMc9=p02r8-QhJ=h=Mqwckk4_Pnx9LQt5%2BfqMp_exQ@mail.gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 247aae3..f2d4c9d 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -17,6 +17,7 @@
 #include <asm/traps.h>			/* dotraplinkage, ...		*/
 #include <asm/pgalloc.h>		/* pgd_*(), ...			*/
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
+#include <asm/fixmap.h>			/* VSYSCALL_START		*/
 
 /*
  * Page fault error code bits:
-- 
cgit v0.10.2


From 664ef2123f4abc05857bf9b2dcccb800fa6fce26 Mon Sep 17 00:00:00 2001
From: Cesar Eduardo Barros <cesarb@cesarb.net>
Date: Mon, 15 Aug 2011 19:26:50 -0300
Subject: x86-64, doc: Remove int 0xcc from entry_64.S documentation

Commit 3ae36655b97a03fa1decf72f04078ef945647c1a (x86-64: Rework vsyscall
emulation and add vsyscall= parameter) removed the special use of the
0xcc IDT vector.

Remove it from Documentation/x86/entry_64.txt also.

Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Acked-by: Andy Lutomirski <luto@MIT.EDU>
Link: http://lkml.kernel.org/r/1313447210-9149-1-git-send-email-cesarb@cesarb.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

diff --git a/Documentation/x86/entry_64.txt b/Documentation/x86/entry_64.txt
index 7869f14..bc7226e 100644
--- a/Documentation/x86/entry_64.txt
+++ b/Documentation/x86/entry_64.txt
@@ -27,9 +27,6 @@ Some of these entries are:
    magically-generated functions that make their way to do_IRQ with
    the interrupt number as a parameter.
 
- - emulate_vsyscall: int 0xcc, a special non-ABI entry used by
-   vsyscall emulation.
-
  - APIC interrupts: Various special-purpose interrupts for things
    like TLB shootdown.
 
-- 
cgit v0.10.2