linux-kernel - Re: [PATCH v3 3/6] KVM: VMX: Detect Tertiary VM-Execution control when setup VMCS config

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Date:   Thu, 5 Aug 2021 15:41:15 -0700
From:   Jim Mattson <jmattson@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Zeng Guang <guang.zeng@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Kim Phillips <kim.phillips@....com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Jethro Beekman <jethro@...tanix.com>,
        Kai Huang <kai.huang@...el.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Robert Hu <robert.hu@...el.com>,
        Gao Chao <chao.gao@...el.com>,
        Robert Hoo <robert.hu@...ux.intel.com>
Subject: Re: [PATCH v3 3/6] KVM: VMX: Detect Tertiary VM-Execution control
 when setup VMCS config

On Thu, Aug 5, 2021 at 3:35 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> On Thu, Aug 05, 2021, Zeng Guang wrote:
> > +u64 vmx_tertiary_exec_control(struct vcpu_vmx *vmx)
>
> Make this static and drop the declaration from vmx.h, there's no nested user (yet),

I assume that this feature isn't actually virtualizable, since it's
based on posted interrupts, which are not virtualizable.