linux-kernel - [PATCH 0/2] KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM

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Date:   Mon, 22 Nov 2021 18:58:16 +0100
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN

Commit 63f5a1909f9e ("KVM: x86: Alert userspace that KVM_SET_CPUID{,2}
after KVM_RUN is broken") officially deprecated KVM_SET_CPUID{,2} ioctls
after first successful KVM_RUN and promissed to make this sequence forbiden
in 5.16. TO fulfil the promise 'hyperv_features' selftest needs to be fixed
first.

Vitaly Kuznetsov (2):
  KVM: selftests: Avoid KVM_SET_CPUID2 after KVM_RUN in hyperv_features
    test
  KVM: x86: Forbid KVM_SET_CPUID{,2} after KVM_RUN

 arch/x86/kvm/mmu/mmu.c                        |  20 +--
 arch/x86/kvm/x86.c                            |  27 ++++
 .../selftests/kvm/x86_64/hyperv_features.c    | 140 +++++++++---------
 3 files changed, 101 insertions(+), 86 deletions(-)

-- 
2.33.1