spapr: Enable in-kernel H_SET_MODE handling
For setting debug watchpoints, sPAPR guests use H_SET_MODE hypercall. The existing QEMU H_SET_MODE handler does not support this but the KVM handler in HV KVM does. However it is not enabled. This enables the in-kernel H_SET_MODE handler which handles: - Completed Instruction Address Breakpoint Register - Watch point 0 registers. The rest is still handled in QEMU. Reported-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
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