linux-kernel - Re: [PATCH] x86/sev: Add ENCODE_FRAME_POINTER after stack changed for #VC

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Message-ID: <CAJhGHyAjXgqxxH+myLt0nMcSLQWWLrcOb8WevyQNf-Oajip7-A@mail.gmail.com>
Date:   Tue, 12 Apr 2022 20:24:32 +0800
From:   Lai Jiangshan <jiangshanlai@...il.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        Lai Jiangshan <jiangshan.ljs@...group.com>,
        Joerg Roedel <jroedel@...e.de>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86/sev: Add ENCODE_FRAME_POINTER after stack changed for #VC

On Sat, Mar 19, 2022 at 1:03 AM Josh Poimboeuf <jpoimboe@...hat.com> wrote:

> Ok, maybe Joerg can test it.  It looks obviously right to me though.

It looks also obviously right to me.

Hello, Joerg

Any feedback?

> Since it fixes a real frame pointer unwinding bug, it probably needs:
>
>   Fixes: a13644f3a53d ("x86/entry/64: Add entry code for #VC handler")
>
> Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>

Hello, Borislav

Can you have a look at the patch, please?

Thanks
Lai