linux-kernel - Re: [PATCH v4 3/8] x86/fpu/xstate: Add CET supervisor xfeature support

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Message-ID: <a287cfc1-da35-4cd4-9278-4920bb579b5c@intel.com>
Date: Wed, 2 Apr 2025 14:37:32 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: "Chang S. Bae" <chang.seok.bae@...el.com>, Chao Gao <chao.gao@...el.com>,
 x86@...nel.org, linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
 tglx@...utronix.de, seanjc@...gle.com, pbonzini@...hat.com
Cc: peterz@...radead.org, rick.p.edgecombe@...el.com,
 weijiang.yang@...el.com, john.allen@....com, bp@...en8.de,
 xin3.li@...el.com, Maxim Levitsky <mlevitsk@...hat.com>,
 Ingo Molnar <mingo@...hat.com>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H. Peter Anvin" <hpa@...or.com>, Mitchell Levy <levymitchell0@...il.com>,
 Samuel Holland <samuel.holland@...ive.com>,
 Aruna Ramakrishna <aruna.ramakrishna@...cle.com>,
 Vignesh Balasubramanian <vigbalas@....com>
Subject: Re: [PATCH v4 3/8] x86/fpu/xstate: Add CET supervisor xfeature
 support

On 4/1/25 10:15, Chang S. Bae wrote:
> In V3, you moved this patch further back to position 8 out of 10. Now,
> in this version, you've placed it at position 3 out of 8.
> 
> This raises the question of whether you've fully internalized his advice.

Uh huh.

1. Refactor/fix existing code
2. Add new infrastructure
3. Add new feature