• Sean Christopherson's avatar
    KVM: x86: Unexport x86_emulate_instruction() · c60658d1
    Sean Christopherson authored
    Allowing x86_emulate_instruction() to be called directly has led to
    subtle bugs being introduced, e.g. not setting EMULTYPE_NO_REEXECUTE
    in the emulation type.  While most of the blame lies on re-execute
    being opt-out, exporting x86_emulate_instruction() also exposes its
    cr2 parameter, which may have contributed to commit d391f120
    ("x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO
    when running nested") using x86_emulate_instruction() instead of
    emulate_instruction() because "hey, I have a cr2!", which in turn
    introduced its EMULTYPE_NO_REEXECUTE bug.
    Signed-off-by: default avatarSean Christopherson <sean.j.christopherson@intel.com>
    Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
    c60658d1
kvm_host.h 44 KB