Re: [PATCH v2 00/14] x86: Support for CET Supervisor Shadow Stacks

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 27/05/2020 20:18, Andrew Cooper wrote:
> This series implements Shadow Stack support for Xen to use.

Given that we almost got to agreement, and considering the value of this
feature, I've fixed up most of the remaining comments and committed the
series.

The main area of concern was the fragility of stack expressions.  I've
got a plan for 4.15 to far more robust (by borrowing a trick from
Linux), and have left the existing logic at least self-consistent.

If there are still major concerns with the result, we can fix that up
early next week.

~Andrew