linux-kernel - Re: [kpatch] [PATCH] livepatch v7: move x86 specific ftrace handler code to arch/x86

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Message-ID: <20141219142316.GA4120@treble.redhat.com>
Date:	Fri, 19 Dec 2014 08:23:16 -0600
From:	Josh Poimboeuf <jpoimboe@...hat.com>
To:	Li Bin <huawei.libin@...wei.com>
Cc:	Seth Jennings <sjenning@...hat.com>, Jiri Kosina <jkosina@...e.cz>,
	Vojtech Pavlik <vojtech@...e.cz>,
	Steven Rostedt <rostedt@...dmis.org>,
	Petr Mladek <pmladek@...e.cz>, Miroslav Benes <mbenes@...e.cz>,
	kpatch@...hat.com, Greg KH <gregkh@...uxfoundation.org>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	Andy Lutomirski <luto@...capital.net>,
	Christoph Hellwig <hch@...radead.org>,
	live-patching@...r.kernel.org, Li Zefan <lizefan@...wei.com>,
	zhangdianfang <zhangdianfang@...wei.com>,
	Hanjun Guo <guohanjun@...wei.com>,
	xiexiuqi <xiexiuqi@...wei.com>
Subject: Re: [kpatch] [PATCH] livepatch v7: move x86 specific ftrace handler
 code to arch/x86

On Fri, Dec 19, 2014 at 02:11:17PM +0800, Li Bin wrote:
> The execution flow redirection related implemention in the livepatch
> ftrace handler is depended on the specific architecture. This patch
> introduces klp_arch_set_pc(like kgdb_arch_set_pc) interface to change
> the pt_regs.
> 
> Signed-off-by: Li Bin <huawei.libin@...wei.com>
> ---
>  arch/x86/include/asm/livepatch.h |    5 +++++
>  kernel/livepatch/core.c          |    2 +-
>  2 files changed, 6 insertions(+), 1 deletions(-)

Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>


-- 
Josh
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