• Paolo Bonzini's avatar
    KVM: x86: fix uninitialized variable use on KVM_REQ_TRIPLE_FAULT · e542baf3
    Paolo Bonzini authored
    If a triple fault was fixed by kvm_x86_ops.nested_ops->triple_fault (by
    turning it into a vmexit), there is no need to leave vcpu_enter_guest().
    Any vcpu->requests will be caught later before the actual vmentry,
    and in fact vcpu_enter_guest() was not initializing the "r" variable.
    Depending on the compiler's whims, this could cause the
    x86_64/triple_fault_event_test test to fail.
    
    Cc: Maxim Levitsky <mlevitsk@redhat.com>
    Fixes: 92e7d5c8 ("KVM: x86: allow L1 to not intercept triple fault")
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    e542baf3
x86.c 365 KB