Re: [PATCH 00/11] Use global pages with PTI

Dave Hansen
2018-03-31T18:19:51Z

On 03/30/2018 10:39 PM, Ingo Molnar wrote:
> There were a couple of valid review comments which need to be addressed as well,
> but other than that it all looks good to me and I plan to apply the next
> iteration.

Testing on that non-PCID systems showed an oddity with parts of the
kernel image that are modified later in boot (when we set the kernel
image read-only). We split a few of the PMD entries and the the old
(early boot) values were being used for userspace.

I don't think this is a big deal. The most annoying thing is that it
makes it harder to quickly validate that all of the things we set to
global *should* be global. I'll put some examples of how this looks in
the patch when I repost.