Re: [PATCH v4 00/45] x86: Kernel IBT

[Josh Poimboeuf]

On Tue, Mar 08, 2022 at 12:06:18PM -0800, Josh Poimboeuf wrote:
> As talked about on IRC there are still a few outstanding issues, that
> I'm fine with fixing after the merge window during the upcoming -next
> cycle:
> 
> - xen hypercall page functions need 'ret' - (I think you already fixed)
> 
> - why don't unreachables need to fill up the entire sym hole?
> 
> - get rid of the 'c_file' hack
> 
> - improve cmdline option intuitive-ness
> 
> - properly integrate the retpoline "demotion" with the new Spectre BHI
>   related patches - probably still needs more discussion - for example
>   we might instead want to disable IBT and warn

One more:

- Changing objtool should force a vmlinux re-link.

-- 
Josh