Re: [PATCH v3] x86/bugs: Only harden syscalls when needed

From: Josh Poimboeuf
Date: Thu Apr 18 2024 - 20:31:51 EST


On Wed, Apr 17, 2024 at 11:50:55PM -0700, Christoph Hellwig wrote:
> On Tue, Apr 16, 2024 at 04:02:21PM -0700, Josh Poimboeuf wrote:
> > Syscall hardening (i.e., converting the syscall indirect branch to a
> > series of direct branches) may cause performance regressions in certain
> > scenarios.
>
> Maybe spell out the scenarios, as this just sounds like hand waiving
> right now..

Will do.

--
Josh