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[Xen-devel] Hyp compat_memory_op() and 256 GB PV




Hi,

Moving on to 256 GB guest, the hyp is failing the XENMEM_populate_physmap
hcall in compat_memory_op(). The problem is size too large for continuation
encoding:

    /* Is size too large for us to encode a continuation? */
    if ( cmp.rsrv.nr_extents > (UINT_MAX >> MEMOP_EXTENT_SHIFT))
        return start_extent;

     for 256 GB : nr_extents == 0x4000000

 Currently at a loss on this one!

Thanks,
Mukesh


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