linux-kernel - [PATCH 0/3] KVM: x86: Nested fixes (mostly #DF/#TF)

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Date:   Thu,  7 Apr 2022 00:23:12 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chenyi Qiang <chenyi.qiang@...el.com>
Subject: [PATCH 0/3] KVM: x86: Nested fixes (mostly #DF/#TF)

Patch 1 removes an assertion that is going to fail miserably once KVM
allows save/restore of pending triple faults.

Patches 2 and 3 are fixes for edge cases for nVMX related to saving exit
info on failed VM-Entry, #DF and triple fault, that in all likelihood no
one cares about.

Sean Christopherson (3):
  KVM: x86: Drop WARNs that assert a triple fault never "escapes" from
    L2
  KVM: nVMX: Leave most VM-Exit info fields unmodified on failed
    VM-Entry
  KVM: nVMX: Clear IDT vectoring on nested VM-Exit for double/triple
    fault

 arch/x86/kvm/svm/nested.c |  3 ---
 arch/x86/kvm/vmx/nested.c | 48 ++++++++++++++++++++++++++++++---------
 arch/x86/kvm/vmx/vmcs.h   |  5 ++++
 3 files changed, 42 insertions(+), 14 deletions(-)


base-commit: 7d4cda14f55ae6998220aaecd2ab00e20d0e8f57
-- 
2.35.1.1094.g7c7d902a7c-goog