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From:   Maxim Levitsky <mlevitsk@redhat.com>
To:     kvm@vger.kernel.org
Cc:     Wanpeng Li <wanpengli@tencent.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND
        64-BIT)), Jim Mattson <jmattson@google.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Borislav Petkov <bp@alien8.de>,
        Joerg Roedel <joro@8bytes.org>, Ingo Molnar <mingo@redhat.com>,
        x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
        Sean Christopherson <seanjc@google.com>,
        Cathy Avery <cavery@redhat.com>,
        Maxim Levitsky <mlevitsk@redhat.com>
Subject: [PATCH 0/5] KVM: nSVM: few fixes for the nested migration
Date:   Mon,  3 May 2021 15:54:41 +0300
Message-Id: <20210503125446.1353307-1-mlevitsk@redhat.com>
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Those are few fixes for issues I uncovered by doing variants of a=0D
synthetic migration test I just created:=0D
=0D
I modified the qemu, such that on each vm pause/resume cycle,=0D
just prior to resuming a vCPU, qemu reads its KVM state,=0D
then (optionaly) resets this state by uploading a=0D
dummy reset state to KVM, and then it uploads back to KVM,=0D
the state that this vCPU had before.=0D
=0D
I'll try to make this test upstreamable soon, pending few details=0D
I need to figure out.=0D
=0D
Last patch in this series is for false positive warning=0D
that I have seen lately when setting the nested state,=0D
in nested_svm_vmexit, where it expects the vmcb01 to have=0D
VMRUN vmexit, which is not true after nested migration,=0D
as it is not fully initialized.=0D
If you prefer the warning can be removed instead.=0D
=0D
Best regards,=0D
	Maxim Levitsky=0D
=0D
Maxim Levitsky (5):=0D
  KVM: nSVM: fix a typo in svm_leave_nested=0D
  KVM: nSVM: fix few bugs in the vmcb02 caching logic=0D
  KVM: nSVM: leave the guest mode prior to loading a nested state=0D
  KVM: nSVM: force L1's GIF to 1 when setting the nested state=0D
  KVM: nSVM: set a dummy exit reason in L1 vmcb when loading the nested=0D
    state=0D
=0D
 arch/x86/include/asm/kvm_host.h |  1 +=0D
 arch/x86/kvm/svm/nested.c       | 29 ++++++++++++++++++++++++++---=0D
 arch/x86/kvm/svm/svm.c          |  4 ++--=0D
 3 files changed, 29 insertions(+), 5 deletions(-)=0D
=0D
-- =0D
2.26.2=0D
=0D