linux-kernel - Re: [GIT PULL] x86/urgent for v5.11-rc7

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Message-ID: <CAHk-=wiSYia4kRUpwSBrKoZzd_pJpWqt-UF_oQdcjcU2+pxmQA@mail.gmail.com>
Date:   Sun, 7 Feb 2021 10:40:19 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     Borislav Petkov <bp@...e.de>, Steven Rostedt <rostedt@...dmis.org>,
        x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: Re: [GIT PULL] x86/urgent for v5.11-rc7

On Sun, Feb 7, 2021 at 10:32 AM Dave Hansen <dave.hansen@...el.com> wrote:
>
> My understanding is that AMD has documented support for Shadow Stacks:
>
>         https://www.amd.com/system/files/TechDocs/24592.pdf
>
> But has not yet released any documentation about IBT.  IBT seems to be
> Intel-only, at least in the short term.  There may be more, but the
> "Tiger Lake" CPUs are the only ones I know of off the top of my head
> that are in the wild:

Ahh, ok. I clearly didn't look at the details, just the overview of
"supports CET".

           Linus