MIPS: Probe guest CP0_UserLocal
Probe for presence of guest CP0_UserLocal register and expose via cpu_guest_has_userlocal. This register is optional pre-r6, so this will allow KVM to only save/restore/expose the guest CP0_UserLocal register if it exists. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Radim Krčmář" <rkrcmar@redhat.com> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org
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