linux-kernel - Re: [PATCH v2 05/25] KVM: VMX: Initialize FRED VM entry/exit controls in vmcs

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Date: Fri, 19 Apr 2024 18:24:15 +0800
From: Chao Gao <chao.gao@...el.com>
To: Xin Li <xin3.li@...el.com>
CC: <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>,
	<linux-doc@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<seanjc@...gle.com>, <pbonzini@...hat.com>, <corbet@....net>,
	<tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
	<dave.hansen@...ux.intel.com>, <x86@...nel.org>, <hpa@...or.com>,
	<shuah@...nel.org>, <vkuznets@...hat.com>, <peterz@...radead.org>,
	<ravi.v.shankar@...el.com>, <xin@...or.com>
Subject: Re: [PATCH v2 05/25] KVM: VMX: Initialize FRED VM entry/exit
 controls in vmcs_config

On Wed, Feb 07, 2024 at 09:26:25AM -0800, Xin Li wrote:
>Setup the global vmcs_config for FRED:
>1) Add VM_ENTRY_LOAD_IA32_FRED to KVM_OPTIONAL_VMX_VM_ENTRY_CONTROLS to
>   have a FRED CPU load guest FRED MSRs from VMCS upon VM entry.
>2) Add SECONDARY_VM_EXIT_SAVE_IA32_FRED to
>   KVM_OPTIONAL_VMX_SECONDARY_VM_EXIT_CONTROLS to have a FRED CPU save
>   guest FRED MSRs to VMCS during VM exit.
>3) add SECONDARY_VM_EXIT_LOAD_IA32_FRED to
>   KVM_OPTIONAL_VMX_SECONDARY_VM_EXIT_CONTROLS to have a FRED CPU load
>   host FRED MSRs from VMCS during VM exit.
>
>Signed-off-by: Xin Li <xin3.li@...el.com>
>Tested-by: Shan Kang <shan.kang@...el.com>

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