Re: [PATCH 0/5] x86: CVE-2017-5715, aka Spectre

["H.J. Lu" <hjl dot tools at gmail dot com>]

On Fri, Jan 12, 2018 at 12:01 AM, Uros Bizjak <ubizjak@gmail.com> wrote:
> On Thu, Jan 11, 2018 at 2:28 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
>
>> Hi Uros,
>>
>> Can you take a look at my x86 backend changes so that they are ready
>> to check in once we have consensus.
>
> Please finish the talks about the correct approach first. Once the
> consensus is reached, please post the final version of the patches for
> review.

A  new set of patches are posted at

https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01041.html
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01044.html
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01045.html
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01043.html
https://gcc.gnu.org/ml/gcc-patches/2018-01/msg01042.html

I will submit an additional patch to disallow
-mindirect-branch=/-mfunction-return=
with -mshstk.

> BTW: I have no detailed insight in these issues, so I'll look mostly
> at the implementation details, probably early next week.
>

Kernel teams are waiting for the GCC 8 upstream patches.  They
have been using my GCC 7 backports for weeks now.   Jan, can
you review my patches before Uros has time next week?

Thanks.


-- 
H.J.