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Message-ID: <18be9cae-91e7-c6f6-a5a7-ec7ceefa5523@intel.com>
Date:   Mon, 3 Oct 2022 12:42:13 -0700
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Subject: Re: [PATCH v2 02/39] x86/cet/shstk: Add Kconfig option for Shadow
 Stack
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To:     Rick Edgecombe <rick.p.edgecombe@intel.com>, x86@kernel.org,
        "H . Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org,
        linux-doc@vger.kernel.org, linux-mm@kvack.org,
        linux-arch@vger.kernel.org, linux-api@vger.kernel.org,
        Arnd Bergmann <arnd@arndb.de>,
        Andy Lutomirski <luto@kernel.org>,
        Balbir Singh <bsingharora@gmail.com>,
        Borislav Petkov <bp@alien8.de>,
        Cyrill Gorcunov <gorcunov@gmail.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Eugene Syromiatnikov <esyr@redhat.com>,
        Florian Weimer <fweimer@redhat.com>,
        "H . J . Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Kees Cook <keescook@chromium.org>,
        Mike Kravetz <mike.kravetz@oracle.com>,
        Nadav Amit <nadav.amit@gmail.com>,
        Oleg Nesterov <oleg@redhat.com>, Pavel Machek <pavel@ucw.cz>,
        Peter Zijlstra <peterz@infradead.org>,
        Randy Dunlap <rdunlap@infradead.org>,
        "Ravi V . Shankar" <ravi.v.shankar@intel.com>,
        Weijiang Yang <weijiang.yang@intel.com>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        joao.moreira@intel.com, John Allen <john.allen@amd.com>,
        kcc@google.com, eranian@google.com, rppt@kernel.org,
        jamorris@linux.microsoft.com, dethoma@microsoft.com
Cc:     Yu-cheng Yu <yu-cheng.yu@intel.com>
References: <20220929222936.14584-1-rick.p.edgecombe@intel.com>
 <20220929222936.14584-3-rick.p.edgecombe@intel.com>
From:   Dave Hansen <dave.hansen@intel.com>
In-Reply-To: <20220929222936.14584-3-rick.p.edgecombe@intel.com>
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On 9/29/22 15:28, Rick Edgecombe wrote:
> +config X86_SHADOW_STACK
> +	prompt "X86 Shadow Stack"
> +	def_bool n
> +	depends on ARCH_HAS_SHADOW_STACK
> +	select ARCH_USES_HIGH_VMA_FLAGS
> +	help
> +	  Shadow Stack protection is a hardware feature that detects function
> +	  return address corruption. Today the kernel's support is limited to
> +	  virtualizing it in KVM guests.
> +

Is this help text up to date?  It seems a bit at odds with the series title.