linux-kernel - Re: [patch V3 03/30] x86/microcode/intel: Rip out mixed stepping support for Intel CPUs

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Message-Id: <20230925151939.54555-1-qiuxu.zhuo@intel.com>
Date:   Mon, 25 Sep 2023 23:19:39 +0800
From:   Qiuxu Zhuo <qiuxu.zhuo@...el.com>
To:     tglx@...utronix.de
Cc:     arjan@...ux.intel.com, ashok.raj@...el.com, bp@...en8.de,
        chang.seok.bae@...el.com, linux-kernel@...r.kernel.org,
        nik.borisov@...e.com, x86@...nel.org, qiuxu.zhuo@...el.com
Subject: Re: [patch V3 03/30] x86/microcode/intel: Rip out mixed stepping support for Intel CPUs

> ...
> 
> Mixed steppings aren't supported on Intel CPUs. Only one patch is required
> for the entire system. The caching of micro code blobs which match the

s/micro code/microcode/

> family and model is therefore pointless and in fact it is disfunctional as

s/disfunctional/dysfunctional/

> CPU hotplug updates use only a single microcode blob, i.e. the one where
> *intel_ucode_patch points to.
> 
> Remove the microcode cache and make it an AMD local feature.
> 
> ...