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Date:   Thu, 19 Jan 2023 22:51:48 +0000
From:   Sean Christopherson <seanjc@google.com>
To:     Zhi Wang <zhi.wang.linux@gmail.com>
Cc:     isaku.yamahata@intel.com, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org, isaku.yamahata@gmail.com,
        Paolo Bonzini <pbonzini@redhat.com>, erdemaktas@google.com,
        Sagi Shahar <sagis@google.com>,
        David Matlack <dmatlack@google.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Kai Huang <kai.huang@intel.com>
Subject: Re: [PATCH v11 018/113] KVM: TDX: create/destroy VM structure
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On Fri, Jan 20, 2023, Zhi Wang wrote:
> On Tue, 17 Jan 2023 20:56:17 +0000 Sean Christopherson <seanjc@google.com> wrote:
> What I would like to clarify is: it would be better to have a mechanism to make sure a
> SEAMCALL can succeed at a certain point (or at least trying to succeed) as the 
> magic number would work like a lottery in reality.

Yep, you and I are in agreement on this point.  Ideally, KVM would be able to
guarantee success and treat TDX_OPERAND_BUSY errors as KVM bugs.