linux-kernel - Re: [PATCH v13 07/35] x86/fred: Disable FRED support if CONFIG_X86

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Message-ID: <20240122130827.GQZa5oy4OZHRFEqbsr@fat_crate.local>
Date: Mon, 22 Jan 2024 14:08:27 +0100
From: Borislav Petkov <bp@...en8.de>
To: Xin Li <xin3.li@...el.com>
Cc: linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-edac@...r.kernel.org, linux-hyperv@...r.kernel.org,
	kvm@...r.kernel.org, xen-devel@...ts.xenproject.org,
	tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com,
	x86@...nel.org, hpa@...or.com, luto@...nel.org, pbonzini@...hat.com,
	seanjc@...gle.com, peterz@...radead.org, jgross@...e.com,
	ravi.v.shankar@...el.com, mhiramat@...nel.org,
	andrew.cooper3@...rix.com, jiangshanlai@...il.com,
	nik.borisov@...e.com, shan.kang@...el.com
Subject: Re: [PATCH v13 07/35] x86/fred: Disable FRED support if
 CONFIG_X86_FRED is disabled

On Tue, Dec 05, 2023 at 02:49:56AM -0800, Xin Li wrote:
> From: "H. Peter Anvin (Intel)" <hpa@...or.com>
> 
> Add CONFIG_X86_FRED to <asm/disabled-features.h> to make
> cpu_feature_enabled() work correctly with FRED.
> 
> Originally-by: Megha Dey <megha.dey@...el.com>
> Signed-off-by: H. Peter Anvin (Intel) <hpa@...or.com>
> Tested-by: Shan Kang <shan.kang@...el.com>
> Signed-off-by: Xin Li <xin3.li@...el.com>
> ---
> 
> Changes since v10:
> * FRED feature is defined in cpuid word 12, not 13 (Nikolay Borisov).
> ---
>  arch/x86/include/asm/disabled-features.h       | 8 +++++++-
>  tools/arch/x86/include/asm/disabled-features.h | 8 +++++++-
>  2 files changed, 14 insertions(+), 2 deletions(-)

Whoever applies this: this one and the previous one can be merged into
one patch.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette