From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Dan Cross <dcross@google.com>, Peter Shier <pshier@google.com>
Subject: [PATCH v2 0/7] KVM: nVMX: Bug fixes and cleanup
Date: Wed, 23 Sep 2020 11:44:45 -0700 [thread overview]
Message-ID: <20200923184452.980-1-sean.j.christopherson@intel.com> (raw)
Fix for a brutal segment caching bug that manifested as random nested
VM-Enter failures when running with unrestricted guest disabled. A few
more bug fixes and cleanups for stuff found by inspection when hunting
down the caching issue.
v2:
- Rebased to kvm/queue, commit e1ba1a15af73 ("KVM: SVM: Enable INVPCID
feature on AMD").
Sean Christopherson (7):
KVM: nVMX: Reset the segment cache when stuffing guest segs
KVM: nVMX: Reload vmcs01 if getting vmcs12's pages fails
KVM: nVMX: Explicitly check for valid guest state for !unrestricted
guest
KVM: nVMX: Move free_nested() below vmx_switch_vmcs()
KVM: nVMX: Ensure vmcs01 is the loaded VMCS when freeing nested state
KVM: nVMX: Drop redundant VMCS switch and free_nested() call
KVM: nVMX: WARN on attempt to switch the currently loaded VMCS
arch/x86/kvm/vmx/nested.c | 103 ++++++++++++++++++++------------------
arch/x86/kvm/vmx/vmx.c | 8 +--
arch/x86/kvm/vmx/vmx.h | 9 ++++
3 files changed, 65 insertions(+), 55 deletions(-)
--
2.28.0
next reply other threads:[~2020-09-23 18:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-23 18:44 Sean Christopherson [this message]
2020-09-23 18:44 ` [PATCH v2 1/7] KVM: nVMX: Reset the segment cache when stuffing guest segs Sean Christopherson
2020-09-23 18:44 ` [PATCH v2 2/7] KVM: nVMX: Reload vmcs01 if getting vmcs12's pages fails Sean Christopherson
2020-09-23 18:44 ` [PATCH v2 3/7] KVM: nVMX: Explicitly check for valid guest state for !unrestricted guest Sean Christopherson
2020-09-25 21:33 ` Paolo Bonzini
2020-09-23 18:44 ` [PATCH v2 4/7] KVM: nVMX: Move free_nested() below vmx_switch_vmcs() Sean Christopherson
2020-09-23 18:44 ` [PATCH v2 5/7] KVM: nVMX: Ensure vmcs01 is the loaded VMCS when freeing nested state Sean Christopherson
2020-09-23 18:44 ` [PATCH v2 6/7] KVM: nVMX: Drop redundant VMCS switch and free_nested() call Sean Christopherson
2020-09-23 18:44 ` [PATCH v2 7/7] KVM: nVMX: WARN on attempt to switch the currently loaded VMCS Sean Christopherson
2020-09-25 21:35 ` [PATCH v2 0/7] KVM: nVMX: Bug fixes and cleanup Paolo Bonzini
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