On 3/17/21 7:04 AM, Roger Pau Monne wrote:
>
> /*
> - * Clamp the amount of extra memory to a XEN_EXTRA_MEM_RATIO
> - * factor the base size.
> + * Clamp the amount of extra memory to a EXTRA_MEM_RATIO
> + * factor the base size. On non-highmem systems, the base
> + * size is the full initial memory allocation; on highmem it
> + * is limited to the max size of lowmem, so that it doesn't
> + * get completely filled.
> *
> * Make sure we have no memory above max_pages, as this area
> * isn't handled by the p2m management.
> + *
> + * In principle there could be a problem in lowmem systems if
> + * the initial memory is also very large with respect to
> + * lowmem, but we won't try to deal with that here.
> */
This comment looks out-of-date in light of deprecated support for 32-bit PV. So I think we don't need to revert this part (except for the macro name).
-boris