Re: [PATCH v2 04/25] KVM: x86: Mark CR4.FRED as not reserved

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To: Xin Li <xin3.li@xxxxxxxxx>
Subject: Re: [PATCH v2 04/25] KVM: x86: Mark CR4.FRED as not reserved
From: Chao Gao <chao.gao@xxxxxxxxx>
Date: Fri, 19 Apr 2024 18:22:22 +0800
Cc: <linux-kernel@xxxxxxxxxxxxxxx>, <kvm@xxxxxxxxxxxxxxx>, <linux-doc@xxxxxxxxxxxxxxx>, <linux-kselftest@xxxxxxxxxxxxxxx>, <seanjc@xxxxxxxxxx>, <pbonzini@xxxxxxxxxx>, <corbet@xxxxxxx>, <tglx@xxxxxxxxxxxxx>, <mingo@xxxxxxxxxx>, <bp@xxxxxxxxx>, <dave.hansen@xxxxxxxxxxxxxxx>, <x86@xxxxxxxxxx>, <hpa@xxxxxxxxx>, <shuah@xxxxxxxxxx>, <vkuznets@xxxxxxxxxx>, <peterz@xxxxxxxxxxxxx>, <ravi.v.shankar@xxxxxxxxx>, <xin@xxxxxxxxx>
In-reply-to: <20240207172646.3981-5-xin3.li@intel.com>

On Wed, Feb 07, 2024 at 09:26:24AM -0800, Xin Li wrote:
>The CR4.FRED bit, i.e., CR4[32], is no longer a reserved bit when a guest
>enumerates FRED, otherwise it is still a reserved bit.
>
>Signed-off-by: Xin Li <xin3.li@xxxxxxxxx>
>Tested-by: Shan Kang <shan.kang@xxxxxxxxx>

Reviewed-by: Chao Gao <chao.gao@xxxxxxxxx>

References:
- [PATCH v2 00/25] Enable FRED with KVM VMX
  - From: Xin Li
- [PATCH v2 04/25] KVM: x86: Mark CR4.FRED as not reserved
  - From: Xin Li

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