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Date:   Wed, 29 Mar 2023 12:46:46 +0800
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Subject: Re: [kvm-unit-tests PATCH 1/3] x86: Add define for
 MSR_IA32_PRED_CMD's PRED_CMD_IBPB (bit 0)
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To:     Sean Christopherson <seanjc@google.com>
Cc:     Paolo Bonzini <pbonzini@redhat.com>, kvm@vger.kernel.org
References: <20230328050231.3008531-1-seanjc@google.com>
 <20230328050231.3008531-2-seanjc@google.com>
 <620935f7-dd7a-2db6-1ddf-8dae27326f60@intel.com>
 <ZCMCzpAkGV56+ZbS@google.com>
From:   Xiaoyao Li <xiaoyao.li@intel.com>
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On 3/28/2023 11:07 PM, Sean Christopherson wrote:
> On Tue, Mar 28, 2023, Xiaoyao Li wrote:
>> On 3/28/2023 1:02 PM, Sean Christopherson wrote:
>>> Add a define for PRED_CMD_IBPB and use it to replace the open coded '1' in
>>> the nVMX library.
>>
>> What does nVMX mean here?
> 
> Nested VMX.  From KUT's perspective, the testing exists to validate KVM's nested
> VMX implementation.  If it's at all confusing, I'll drop the 'n'  And we've already
> established that KUT can be used on bare metal, even if that's not the primary use
> case.

So vmexit.flat is supposed to be ran in L1 VM?

I'm confused and interested in how KUT is used on bare metal.