xive_native_alloc_vp_block
u32 xive_native_alloc_vp_block(u32 max_vcpus);
xive->vp_base = xive_native_alloc_vp_block(xive->nr_servers);
xive_pool_vps = xive_native_alloc_vp_block(nr_cpu_ids);
EXPORT_SYMBOL_GPL(xive_native_alloc_vp_block);