On Tue, Jul 17, Olaf Hering wrote:

To make this robust against allocation errors I will change it to

       do {

> +     /* Allocate new mfn for previous pfn */
> +     rc = HYPERVISOR_memory_op(XENMEM_populate_physmap, &reservation);

       } while (rc == 0);

> +
> +     /* Make sure the previous pfn is really connected to a (new) mfn */
> +     BUG_ON(rc != 1);

Olaf
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