linux-kernel - Re: [RFC PATCH v2 22/69] KVM: x86: Add vm_type to differentiate legacy VMs from protected VMs

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Date:   Tue, 6 Jul 2021 15:56:32 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     isaku.yamahata@...el.com, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, erdemaktas@...gle.com,
        Connor Kuehl <ckuehl@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     isaku.yamahata@...il.com,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Xiaoyao Li <xiaoyao.li@...el.com>
Subject: Re: [RFC PATCH v2 22/69] KVM: x86: Add vm_type to differentiate
 legacy VMs from protected VMs

On 03/07/21 00:04, isaku.yamahata@...el.com wrote:
>   #define KVM_PMU_EVENT_DENY 1
>   
> +#define KVM_X86_LEGACY_VM	0
> +#define KVM_X86_SEV_ES_VM	1
> +#define KVM_X86_TDX_VM		2
> +

SEV-ES is not needed, and TDX_VM might be reused for SEV-SNP.  Also 
"legacy VM" is not really the right name.  Maybe NORMAL/TRUSTED?

Paolo