KVM: nVMX: Add VM-Enter failed tracepoints for super early checks

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Add tracepoints for the early consistency checks in nested_vmx_run().
The "VMLAUNCH vs. VMRESUME" check in particular is useful to trace, as
there is no architectural way to check VMCS.LAUNCH_STATE, and subtle
bugs such as VMCLEAR on the wrong HPA can lead to confusing errors in
the L1 VMM.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200812180615.22372-1-sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-08-12 11:06:15 -07:00 • committed by Paolo Bonzini

parent fb0f33fdef

commit fc595f3599

1 changed files with 5 additions and 5 deletions

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arch/x86/kvm/vmx/nested.c

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