Re: [Xen-devel] [PATCH 5/5] xen: add new hypercall to get grant table limits

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 25.08.17 at 14:03, <jgross@xxxxxxxx> wrote:
> On 25/08/17 13:58, Jan Beulich wrote:
>>>>> On 25.08.17 at 13:40, <jgross@xxxxxxxx> wrote:
>>> In the Linux kernel I would then:
>>>
>>> - Re-add grant v2 support
>>> - Add boot parameter for selecting grant v1 or v2
>>> - Use grant v2 if selected via boot parameter, or (pv only:) max. host
>>>   address is above 16TB
>> 
>> Can a PV DomU know?
> 
> XENMEM_maximum_ram_page

Oh, I always forget that we bogusly expose a machine property here.

Jan


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