From: Peter Zijlstra <peterz@infradead.org>
To: Borislav Petkov <bp@alien8.de>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86/alternative: Align insn bytes vertically
Date: Wed, 2 Jun 2021 10:20:16 +0200 [thread overview]
Message-ID: <YLc/QIpcfjHUoOgf@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20210601193713.16190-1-bp@alien8.de>
On Tue, Jun 01, 2021 at 09:37:13PM +0200, Borislav Petkov wrote:
> From: Borislav Petkov <bp@suse.de>
>
> For easier inspection which bytes have changed.
>
> For example:
>
> feat: 7*32+12, old: (__x86_indirect_thunk_r10+0x0/0x20 (ffffffff81c02480) len: 17), repl: (ffffffff897813aa, len: 17)
> ffffffff81c02480: old_insn: 41 ff e2 90 90 90 90 90 90 90 90 90 90 90 90 90 90
> ffffffff897813aa: rpl_insn: e8 07 00 00 00 f3 90 0f ae e8 eb f9 4c 89 14 24 c3
> ffffffff81c02480: final_insn: e8 07 00 00 00 f3 90 0f ae e8 eb f9 4c 89 14 24 c3
>
> No functional changes.
>
> Signed-off-by: Borislav Petkov <bp@suse.de>
Nice!
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
next prev parent reply other threads:[~2021-06-02 8:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-01 19:37 Borislav Petkov
2021-06-02 8:20 ` Peter Zijlstra [this message]
2021-06-03 12:30 ` [tip: x86/cleanups] " tip-bot2 for Borislav Petkov
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