Message-ID: <1505413827.8286.10.camel@linux.intel.com>
Subject: Re: [PATCH v8 10/28] x86/insn-eval: Add a utility function to get
 register offsets
From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To: Borislav Petkov <bp@suse.de>
Cc: Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        "H. Peter Anvin" <hpa@zytor.com>, Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Brian Gerst <brgerst@gmail.com>, Chris Metcalf <cmetcalf@mellanox.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Masami Hiramatsu <mhiramat@kernel.org>, Huang Rui <ray.huang@amd.com>,
        Jiri Slaby <jslaby@suse.cz>, Jonathan Corbet <corbet@lwn.net>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Paul Gortmaker <paul.gortmaker@windriver.com>,
        Vlastimil Babka <vbabka@suse.cz>, Chen Yucong <slaoub@gmail.com>,
        "Ravi V. Shankar" <ravi.v.shankar@intel.com>,
        Shuah Khan <shuah@kernel.org>, linux-kernel@vger.kernel.org,
        x86@kernel.org, Adam Buchbinder <adam.buchbinder@gmail.com>,
        Colin Ian King <colin.king@canonical.com>,
        Lorenzo Stoakes <lstoakes@gmail.com>,
        Qiaowei Ren <qiaowei.ren@intel.com>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Kees Cook <keescook@chromium.org>,
        Thomas Garnier <thgarnie@google.com>,
        Dmitry Vyukov <dvyukov@google.com>
Date: Thu, 14 Sep 2017 11:30:27 -0700
In-Reply-To: <20170908133514.vty22j5xl76dt6ef@pd.tnic>
References: <20170819002809.111312-1-ricardo.neri-calderon@linux.intel.com>
         <20170819002809.111312-11-ricardo.neri-calderon@linux.intel.com>
         <20170908133514.vty22j5xl76dt6ef@pd.tnic>
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On Fri, 2017-09-08 at 15:35 +0200, Borislav Petkov wrote:
> On Fri, Aug 18, 2017 at 05:27:51PM -0700, Ricardo Neri wrote:
> > 
> > The function get_reg_offset() returns the offset to the register
> > the
> > argument specifies as indicated in an enumeration of type offset.
> > Callers
> > of this function would need the definition of such enumeration.
> > This is
> > not needed. Instead, add helper functions for this purpose. These
> > functions
> > are useful in cases when, for instance, the caller needs to decide
> > whether
> > the operand is a register or a memory location by looking at the rm
> > part
> > of the ModRM byte. As of now, this is the only helper function that
> > is
> > needed.
> > 
> > Cc: Dave Hansen <dave.hansen@linux.intel.com>
> > Cc: Adam Buchbinder <adam.buchbinder@gmail.com>
> > Cc: Colin Ian King <colin.king@canonical.com>
> > Cc: Lorenzo Stoakes <lstoakes@gmail.com>
> > Cc: Qiaowei Ren <qiaowei.ren@intel.com>
> > Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
> > Cc: Masami Hiramatsu <mhiramat@kernel.org>
> > Cc: Adrian Hunter <adrian.hunter@intel.com>
> > Cc: Kees Cook <keescook@chromium.org>
> > Cc: Thomas Garnier <thgarnie@google.com>
> > Cc: Peter Zijlstra <peterz@infradead.org>
> > Cc: Borislav Petkov <bp@suse.de>
> > Cc: Dmitry Vyukov <dvyukov@google.com>
> > Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
> > Cc: x86@kernel.org
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
> > ---
> >  arch/x86/include/asm/insn-eval.h |  1 +
> >  arch/x86/lib/insn-eval.c         | 15 +++++++++++++++
> >  2 files changed, 16 insertions(+)
> Reviewed-by: Borislav Petkov <bp@suse.de>

Thanks for your review!

BR,
Ricardo