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Date: Wed, 11 Jul 2018 11:34:54 +0200
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [RFC PATCH v2 17/27] x86/cet/shstk: User-mode shadow stack
 support
Message-ID: <20180711093454.GX2476@hirez.programming.kicks-ass.net>
References: <20180710222639.8241-1-yu-cheng.yu@intel.com>
 <20180710222639.8241-18-yu-cheng.yu@intel.com>
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In-Reply-To: <20180710222639.8241-18-yu-cheng.yu@intel.com>
Sender: owner-linux-mm@kvack.org
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To: Yu-cheng Yu <yu-cheng.yu@intel.com>
Cc: 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@amacapital.net>, Balbir Singh <bsingharora@gmail.com>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.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@chromiun.org>, Mike Kravetz <mike.kravetz@oracle.com>, Nadav Amit <nadav.amit@gmail.com>, Oleg Nesterov <oleg@redhat.com>, Pavel Machek <pavel@ucw.cz>, "Ravi V. Shankar" <ravi.v.shankar@intel.com>, Vedvyas Shanbhogue <vedvyas.shanbhogue@intel.com>

On Tue, Jul 10, 2018 at 03:26:29PM -0700, Yu-cheng Yu wrote:
> +/* MSR_IA32_U_CET and MSR_IA32_S_CET bits */
> +#define MSR_IA32_CET_SHSTK_EN		0x0000000000000001
> +#define MSR_IA32_CET_WRSS_EN		0x0000000000000002
> +#define MSR_IA32_CET_ENDBR_EN		0x0000000000000004
> +#define MSR_IA32_CET_LEG_IW_EN		0x0000000000000008
> +#define MSR_IA32_CET_NO_TRACK_EN	0x0000000000000010

Do those want a ULL literal suffix?