• James Hogan's avatar
    MIPS: KVM: Don't save/restore lo/hi for r6 · 70e92c7e
    James Hogan authored
    MIPSr6 doesn't have lo/hi registers, so don't bother saving or
    restoring them, and don't expose them to userland with the KVM ioctl
    interface either.
    
    In fact the lo/hi registers aren't callee saved in the MIPS ABIs anyway,
    so there is no need to preserve the host lo/hi values at all when
    transitioning to and from the guest (which happens via a function call).
    Signed-off-by: default avatarJames Hogan <james.hogan@imgtec.com>
    Cc: Paolo Bonzini <pbonzini@redhat.com>
    Cc: Radim KrÄmáŠ<rkrcmar@redhat.com>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: linux-mips@linux-mips.org
    Cc: kvm@vger.kernel.org
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    70e92c7e
mips.c 43.7 KB