Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT

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Subject: Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Mon, 8 Oct 2018 15:11:54 +0200
Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx>, kvm list <kvm@xxxxxxxxxxxxxxx>, Idan Brown <idan.brown@xxxxxxxxxx>
In-reply-to: <7472AA56-36C8-4753-9D41-12CCFDB74C8D@oracle.com>
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References: <20180906133228.118282-1-liran.alon@oracle.com> <20180906133228.118282-4-liran.alon@oracle.com> <CALMp9eSBvgBzXcCd0SEpk+C0US1KWq4HPA0b-yQ5jbfhvztG+Q@mail.gmail.com> <95ed0d8c-409f-6b37-ef97-9c7b9b1f4b38@redhat.com> <CALMp9eTOTRcdprkq2PaZtFoUhp-=sOf5OKW+7J2rpiKETcjOGA@mail.gmail.com> <062F9B5B-AD6A-4B3F-A637-83044E7194E0@oracle.com> <1ED336D6-4659-4028-A03C-C02556D85430@oracle.com> <7472AA56-36C8-4753-9D41-12CCFDB74C8D@oracle.com>
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On 08/10/2018 00:15, Liran Alon wrote:
> Please ignore last email idea. Not really practical…

No problem :)

> I don’t know what is worse in it: The fact there is no vmcs12 to check if it uses EPT
> or the fact that there is no easy way to translate between a vmcs12->vpid to all the active eptp02 that it was used on…
> Sorry for the spam. :)
> 
> I will just submit a fix for the bug of calling __vmx_flush_tlb() with bad parameter.

Thanks!

Paolo

References:
- [PATCH 0/4]: KVM: nVMX: Consider TLB are tagged with different EPTP if L1 uses EPT
  - From: Liran Alon
- [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Liran Alon
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Jim Mattson
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Paolo Bonzini
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Jim Mattson
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Liran Alon
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Liran Alon
- Re: [PATCH 3/4] KVM: nVMX: Set vmcs02->vpid to vmcs12->vpid if L1 uses EPT
  - From: Liran Alon

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