Messages in this thread | | | From | Sean Christopherson <> | Subject | [PATCH 0/7] KVM: nVMX: Bug fixes and cleanup | Date | Tue, 14 Jul 2020 21:05:50 -0700 |
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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.
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 | 10 ++++ 3 files changed, 66 insertions(+), 55 deletions(-)
-- 2.26.0
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