Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <20210207104022.GA32127@zn.tnic> <CAHk-=widXSyJ8W3vRrqO-zNP12A+odxg2J2_-oOUskz33wtfqA@mail.gmail.com>
 <20210207175814.GF32127@zn.tnic> <CAHk-=wi5z9S7x94SKYNj6qSHBqz+OD76GW=MDzo-KN2Fzm-V4Q@mail.gmail.com>
 <541146c6-d809-1041-7417-547d7248e3cd@intel.com>
In-Reply-To: <541146c6-d809-1041-7417-547d7248e3cd@intel.com>
From:   Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sun, 7 Feb 2021 10:40:19 -0800
Message-ID: <CAHk-=wiSYia4kRUpwSBrKoZzd_pJpWqt-UF_oQdcjcU2+pxmQA@mail.gmail.com>
Subject: Re: [GIT PULL] x86/urgent for v5.11-rc7
To:     Dave Hansen <dave.hansen@intel.com>
Cc:     Borislav Petkov <bp@suse.de>, Steven Rostedt <rostedt@goodmis.org>,
        x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Andy Lutomirski <luto@kernel.org>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Sun, Feb 7, 2021 at 10:32 AM Dave Hansen <dave.hansen@intel.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