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Date:   Fri, 4 Nov 2022 22:48:59 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Kim Phillips <kim.phillips@amd.com>
Cc:     x86@kernel.org, Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
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Subject: Re: [PATCH 1/3] x86/cpufeatures: Add support for cpuid leaf
 80000021/EAX (FeatureExt2Eax)
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 <20221104213651.141057-2-kim.phillips@amd.com>
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On Fri, Nov 04, 2022 at 04:36:49PM -0500, Kim Phillips wrote:
> AMD Zen4 processors advertise features in this leaf.
> Add the leaf and its Automatic IBRS feature bit.
> 
> Note: New whole leaf (vs a bit) due to propagation via KVM
> later in this series.

No, not a separate leaf - use scattered.c

For an example what to do for KVM, see

https://lore.kernel.org/r/20221103025030.78371-1-jiaxi.chen@linux.intel.com

Thx.

-- 
Regards/Gruss,
    Boris.

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