Re: [PATCH v8 10/28] x86/insn-eval: Add a utility function to get register offsets

[Ricardo Neri]

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@xxxxxxxxxxxxxxx>
> > Cc: Adam Buchbinder <adam.buchbinder@xxxxxxxxx>
> > Cc: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> > Cc: Lorenzo Stoakes <lstoakes@xxxxxxxxx>
> > Cc: Qiaowei Ren <qiaowei.ren@xxxxxxxxx>
> > Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> > Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> > Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> > Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> > Cc: Thomas Garnier <thgarnie@xxxxxxxxxx>
> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> > Cc: Borislav Petkov <bp@xxxxxxx>
> > Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
> > Cc: Ravi V. Shankar <ravi.v.shankar@xxxxxxxxx>
> > Cc: x86@xxxxxxxxxx
> > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@xxxxxxxxxxxxxxx>
> > ---
> > Âarch/x86/include/asm/insn-eval.h |ÂÂ1 +
> > Âarch/x86/lib/insn-eval.cÂÂÂÂÂÂÂÂÂ| 15 +++++++++++++++
> > Â2 files changed, 16 insertions(+)
> Reviewed-by: Borislav Petkov <bp@xxxxxxx>

Thanks for your review!

BR,
Ricardo