linux-kernel - Re: [PATCH v15 19/41] KVM: x86: Enable CET virtualization for VMX and advertise to userspace

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Message-ID: <9cedb525-a4a7-4a84-b07f-c6d9b793d9db@intel.com>
Date: Fri, 19 Sep 2025 15:10:18 +0800
From: Xiaoyao Li <xiaoyao.li@...el.com>
To: Sean Christopherson <seanjc@...gle.com>,
 Binbin Wu <binbin.wu@...ux.intel.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
 linux-kernel@...r.kernel.org, Tom Lendacky <thomas.lendacky@....com>,
 Mathias Krause <minipli@...ecurity.net>, John Allen <john.allen@....com>,
 Rick Edgecombe <rick.p.edgecombe@...el.com>, Chao Gao <chao.gao@...el.com>,
 Maxim Levitsky <mlevitsk@...hat.com>, Zhang Yi Z <yi.z.zhang@...ux.intel.com>
Subject: Re: [PATCH v15 19/41] KVM: x86: Enable CET virtualization for VMX and
 advertise to userspace

On 9/19/2025 2:05 AM, Sean Christopherson wrote:
> On Thu, Sep 18, 2025, Binbin Wu wrote:
>> On 9/13/2025 7:22 AM, Sean Christopherson wrote:
>> [...]
>>> +static inline bool cpu_has_vmx_basic_no_hw_errcode(void)
>>> +{
>>> +	return	vmcs_config.basic & VMX_BASIC_NO_HW_ERROR_CODE_CC;
>>> +}
>>> +
>>
>> I think "_cc" should be appended to the function name, although it would make
>> the function name longer. Without "_cc", the meaning is different and confusing.
> 
> +1, got it fixed up.

May I ask what the 'CC' means?