This is a new variant which removes `self' cpu from the vpset. It will
be used in Hyper-V enlightened IPI code.
Signed-off-by: NWei Liu <wei.liu@kernel.org>
Reviewed-by: NMichael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20210910185714.299411-2-wei.liu@kernel.org