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Re: [Xen-devel] [PATCH 10/13] x86/alternative: Support indirect call replacement
- To: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, x86@xxxxxxxxxx
- From: "H. Peter Anvin" <hpa@xxxxxxxxx>
- Date: Fri, 17 Nov 2017 11:52:10 -0800
- Cc: Juergen Gross <jgross@xxxxxxxx>, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Jiri Slaby <jslaby@xxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Mike Galbraith <efault@xxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Sasha Levin <alexander.levin@xxxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Borislav Petkov <bp@xxxxxxxxx>, live-patching@xxxxxxxxxxxxxxx, Alok Kataria <akataria@xxxxxxxxxx>, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>
- Delivery-date: Fri, 17 Nov 2017 20:02:54 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 10/04/17 08:58, Josh Poimboeuf wrote:
> Add alternative patching support for replacing an instruction with an
> indirect call. This will be needed for the paravirt alternatives.
I have a patchset that generalizes the alternatives in what I think is a
more robust way. I really, really want to get rid of these hacks. Let
me clean it up an post it...
-hpa
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