Messages in this thread | | | Date | Thu, 9 Mar 2023 18:22:16 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v7 31/41] x86/shstk: Introduce routines modifying shstk |
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On Thu, Mar 09, 2023 at 05:03:26PM +0000, Edgecombe, Rick P wrote: > On Thu, 2023-03-09 at 17:48 +0100, Borislav Petkov wrote: > > On Mon, Feb 27, 2023 at 02:29:47PM -0800, Rick Edgecombe wrote: > > > From: Yu-cheng Yu <yu-cheng.yu@intel.com> > > > > > > Shadow stacks are normally written to via CALL/RET or specific CET > > > > ^ > > indirectly. > > Dunno here, RSTORSSP/SAVEPREVSSP are kind of direct. > > > > > > instructions like RSTORSSP/SAVEPREVSSP. However during some Linux > > > operations the kernel will need to write to directly using the ^^^^^^^^^
Yes, I was trying to make the contrast more obvious because you say "directly" here.
But not too important.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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