Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1455936
| From | Borislav Petkov <bp@alien8.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET |
| Date | 2016-08-03 20:10 +0200 |
| Message-ID | <s28Mb-62m-41@gated-at.bofh.it> (permalink) |
| References | <s21B0-1hs-7@gated-at.bofh.it> <s27wJ-4Vz-15@gated-at.bofh.it> <s27ZM-5m7-3@gated-at.bofh.it> <s289s-5sX-19@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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.
--
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET Borislav Petkov <bp@alien8.de> - 2016-08-03 12:30 +0200
Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET Andy Lutomirski <luto@amacapital.net> - 2016-08-03 18:50 +0200
Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET Borislav Petkov <bp@alien8.de> - 2016-08-03 19:20 +0200
Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET Andy Lutomirski <luto@amacapital.net> - 2016-08-03 19:30 +0200
Re: [PATCH] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET Borislav Petkov <bp@alien8.de> - 2016-08-03 20:10 +0200
[tip:x86/urgent] x86/entry: Clarify the RF saving/restoring situation with SYSCALL/SYSRET tip-bot for Borislav Petkov <tipbot@zytor.com> - 2016-08-10 22:50 +0200
csiph-web