Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers

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To: Brian Gerst <brgerst@xxxxxxxxx>
Subject: Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date: Mon, 5 Mar 2018 12:50:33 -0800
Cc: Joerg Roedel <joro@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Peter Anvin <hpa@xxxxxxxxx>, "the arch/x86 maintainers" <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, linux-mm <linux-mm@xxxxxxxxx>, Andrew Lutomirski <luto@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Jürgen Groß <jgross@xxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Jiri Kosina <jkosina@xxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, David Laight <David.Laight@xxxxxxxxxx>, Denys Vlasenko <dvlasenk@xxxxxxxxxx>, Eduardo Valentin <eduval@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Will Deacon <will.deacon@xxxxxxx>, "Liguori, Anthony" <aliguori@xxxxxxxxxx>, Daniel Gruss <daniel.gruss@xxxxxxxxxxxxxx>, Hugh Dickins <hughd@xxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxx>, Andrea Arcangeli <aarcange@xxxxxxxxxx>, Waiman Long <llong@xxxxxxxxxx>, Pavel Machek <pavel@xxxxxx>, Joerg Roedel <jroedel@xxxxxxx>
In-reply-to: <CAMzpN2hscOXJFzm07Hk=2Ttr3wQFSisxP=EZhRMtAU6xSm8zSw@mail.gmail.com>
References: <1520245563-8444-1-git-send-email-joro@8bytes.org> <1520245563-8444-8-git-send-email-joro@8bytes.org> <CA+55aFym-18UbD5K3n1Ki=mvpuLqa7E6E=qG0aE-dctzTap_WQ@mail.gmail.com> <20180305131231.GR16484@8bytes.org> <CA+55aFwn5EkHTfrUFww54CDWovoUornv6rSrao43agbLBQD6-Q@mail.gmail.com> <CAMzpN2hscOXJFzm07Hk=2Ttr3wQFSisxP=EZhRMtAU6xSm8zSw@mail.gmail.com>

On Mon, Mar 5, 2018 at 12:38 PM, Brian Gerst <brgerst@xxxxxxxxx> wrote:
>
> There already is a test: single_step_syscall.c

Ahh, good. So presumably Joerg actually did check it, just didn't even notice ;)

            Linus

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Follow-Ups:
- Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Joerg Roedel

References:
- [PATCH 00/34 v3] PTI support for x32
  - From: Joerg Roedel
- [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Joerg Roedel
- Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Linus Torvalds
- Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Joerg Roedel
- Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Linus Torvalds
- Re: [PATCH 07/34] x86/entry/32: Restore segments before int registers
  - From: Brian Gerst

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