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Introduce HVCALL_MAP_STATS_PAGE2 which provides a map location (GPFN) to map the stats to. This hypercall is required for L1VH partitions, depending on the hypervisor version. This uses the same check as the state page map location; mshv_use_overlay_gpfn(). Add mshv_map_vp_state_page() helpers to use this new hypercall or the old one depending on availability. For unmapping, the original HVCALL_UNMAP_STATS_PAGE works for both cases. Signed-off-by: Jinank Jain <jinankjain@linux.microsoft.com> Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Reviewed-by: Easwar Hariharan <easwar.hariharan@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>