On Tue, Mar 16, 2021 at 08:10:33AM -0700, Yu-cheng Yu wrote: > The x86 family of processors do not directly create read-only and Dirty > PTEs. These PTEs are created by software. One such case is that kernel > read-only pages are historically setup as Dirty. > > New processors that support Shadow Stack regard read-only and Dirty PTEs as > shadow stack pages. This results in ambiguity between shadow stack and > kernel read-only pages. To resolve this, removed Dirty from kernel read- > only pages. > > Signed-off-by: Yu-cheng Yu <yu-cheng...@intel.com> > Cc: "H. Peter Anvin" <h...@zytor.com> > Cc: Kees Cook <keesc...@chromium.org> > Cc: Thomas Gleixner <t...@linutronix.de> > Cc: Dave Hansen <dave.han...@linux.intel.com> > Cc: Christoph Hellwig <h...@lst.de> > Cc: Andy Lutomirski <l...@kernel.org> > Cc: Ingo Molnar <mi...@redhat.com> > Cc: Borislav Petkov <b...@alien8.de> > Cc: Peter Zijlstra <pet...@infradead.org>
Looks good to me. Reviewed-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> -- Kirill A. Shutemov
