Messages in this thread | | | Date | Wed, 3 Aug 2016 19:54:12 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET |
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On Wed, Aug 03, 2016 at 10:24:18AM -0700, Andy Lutomirski wrote: > AFAICT the AMD people didn't think of any use cases involving doing > anything interesting between SYSCALL and SYSRET. Witness the > sysret_ss_attrs goof, for example: apparently SYSCALL; context switch; > IRET; interrupt; context switch; SYSRET didn't occur to AMD as a valid > use case.
/me hands Andy a time machine to go fix this properly, before so much silicon ships.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply. --
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