Re: [Xen-devel] [PATCH v2] xen: support 52 bit physical addresses in pv guests

2017-10-31 Thread Boris Ostrovsky
On 10/27/2017 01:49 PM, Juergen Gross wrote: > Physical addresses on processors supporting 5 level paging can be up to > 52 bits wide. For a Xen pv guest running on such a machine those > physical addresses have to be supported in order to be able to use any > memory on the machine even if the gues

Re: [Xen-devel] [PATCH v2] xen: support 52 bit physical addresses in pv guests

2017-10-27 Thread Boris Ostrovsky
On 10/27/2017 01:49 PM, Juergen Gross wrote: Physical addresses on processors supporting 5 level paging can be up to 52 bits wide. For a Xen pv guest running on such a machine those physical addresses have to be supported in order to be able to use any memory on the machine even if the guest it

[Xen-devel] [PATCH v2] xen: support 52 bit physical addresses in pv guests

2017-10-27 Thread Juergen Gross
Physical addresses on processors supporting 5 level paging can be up to 52 bits wide. For a Xen pv guest running on such a machine those physical addresses have to be supported in order to be able to use any memory on the machine even if the guest itself does not support 5 level paging. So when re