Messages in this thread | ![/](/images/icornerl.gif) | | From | Linus Torvalds <> | Date | Mon, 29 Apr 2024 17:05:38 -0700 | Subject | Re: [PATCH] x86/mm: Remove broken vsyscall emulation code from the page fault code |
| |
On Mon, 29 Apr 2024 at 16:30, Andy Lutomirski <luto@amacapital.net> wrote: > > What strange page table handling do we do for XONLY?
Ahh, I misread set_vsyscall_pgtable_user_bits(). It's used for EMULATE not for XONLY.
And the code in pti_setup_vsyscall() is just wrong, and does it for all cases.
> So I think we should remove EMULATE before removing XONLY.
Ok, looking at that again, I don't disagree. I misread that XONLY as mapping it executable, but it is actually just mapping it readable
Yes, let's remove EMULATE, and keep XONLY.
Linus
| ![\](/images/icornerr.gif) |