From 96ed4cd0aa86ac1a753baeef26c911a9449493e9 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" <mcgrof@suse.com> Date: Tue, 9 Dec 2014 14:54:44 -0800 Subject: [PATCH] x86/doc: Update documentation after file shuffling While at it, also refer to the 32 bit entry file. Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Borislav Petkov <bp@suse.de> Cc: linux-doc@vger.kernel.org Cc: bpoirier@suse.de Link: http://lkml.kernel.org/r/1418165684-6226-1-git-send-email-mcgrof@do-not-panic.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- Documentation/x86/entry_64.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/Documentation/x86/entry_64.txt b/Documentation/x86/entry_64.txt index bc7226ef5055c..4a1c5c2dc5a91 100644 --- a/Documentation/x86/entry_64.txt +++ b/Documentation/x86/entry_64.txt @@ -7,9 +7,12 @@ http://lkml.kernel.org/r/<20110529191055.GC9835%40elte.hu> The x86 architecture has quite a few different ways to jump into kernel code. Most of these entry points are registered in arch/x86/kernel/traps.c and implemented in arch/x86/kernel/entry_64.S -and arch/x86/ia32/ia32entry.S. +for 64-bit, arch/x86/kernel/entry_32.S for 32-bit and finally +arch/x86/ia32/ia32entry.S which implements the 32-bit compatibility +syscall entry points and thus provides for 32-bit processes the +ability to execute syscalls when running on 64-bit kernels. -The IDT vector assignments are listed in arch/x86/include/irq_vectors.h. +The IDT vector assignments are listed in arch/x86/include/asm/irq_vectors.h. Some of these entries are: -- 2.30.2