Messages in this thread | | | From | Linus Torvalds <> | Date | Mon, 23 Apr 2018 09:45:38 -0700 | Subject | Re: [PATCH 00/37 v6] PTI support for x86-32 |
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On Mon, Apr 23, 2018 at 8:47 AM, Joerg Roedel <joro@8bytes.org> wrote: > > here is the new version of my PTI patches for x86-32 which > implement last weeks review comments.
Just one question: have you checked the page table setup for the basics wrt the USER bit in particular?
No global pages should be marked PAGE_USER, with the possible exception of that nasty old vsyscall page.
And it would be nice to verify that the page tables for kernel mappings also don't have PAGE_USER on them, although again that vsyscall page can cause problems.
Linus
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