Re: [PATCH 1/4] x86/percpu: Use explicit segment registers in lib/cmpxchg{8,16}b_emu.S

To: Uros Bizjak <ubizjak@xxxxxxxxx>, x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
From: "H. Peter Anvin" <hpa@xxxxxxxxx>
Date: Thu, 12 Oct 2023 14:05:45 -0700
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Delivery-date: Thu, 12 Oct 2023 21:06:52 +0000
Dkim-filter: OpenDKIM Filter v2.11.0 mail.zytor.com 39CL5pvr1848458
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 10/12/23 14:02, H. Peter Anvin wrote:>

%fs??

Nevermind, I forgot that we changed from %gs to %fs on i386 at somepoint in the now-distant past.


        -hpa

References:
- [PATCH 0/4] [PATCH 0/4] Introduce %rip-relative addressing to PER_CPU_VAR macro
  - From: Uros Bizjak
- [PATCH 1/4] x86/percpu: Use explicit segment registers in lib/cmpxchg{8,16}b_emu.S
  - From: Uros Bizjak
- Re: [PATCH 1/4] x86/percpu: Use explicit segment registers in lib/cmpxchg{8,16}b_emu.S
  - From: H. Peter Anvin

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