On Tue, Apr 28, 2020 at 02:41:33PM +0100, Andrew Cooper wrote: > Its fine to focus on userspace first, but the kernel is far more simple. > > Looking at that presentation, the only thing missing for kernel is the > notrack thunks, in the unlikely case that such code would be tolerated > (Frankly, I don't expect Xen or Linux to run with notrack enabled, as > there is no legacy code to be concerned with).
Uhhh.. ftrace and kretprobes play dodgy games with the return stack, doesn't that make the CET thing slightly more interesting?
