>>> On 17.12.15 at 17:31, wrote:
> I've looked at reworking XENMEM_exchange to avoid mfn_to_gmfn. My idea would
> be to allocate a temporary array to store the GFN between the two loops.
> However, the array would be quite large (the max default is 18 on ARM),
> so I don't know if it's acceptable.
Hi all,
Currently XENMEM_exchange is not supported on ARM because the steal_page is
left unimplemented.
However, even if steal_page is implemented, the hypercall can't work for ARM
because:
- Direct mapped domain is not supported
- ARM doesn't have a M2P and therefore usage of mfn_to_gmfn
