Re: [RFC PATCH 16/16] xen/grant-table: host_addr fixup in mapping on xenhost_r0

2019-06-18 Thread Ankur Arora
On 6/17/19 3:55 AM, Juergen Gross wrote: On 09.05.19 19:25, Ankur Arora wrote: Xenhost type xenhost_r0 does not support standard GNTTABOP_map_grant_ref semantics (map a gref onto a specified host_addr). That's because since the hypervisor is local (same address space as the caller of GNTTABOP_ma

Re: [RFC PATCH 16/16] xen/grant-table: host_addr fixup in mapping on xenhost_r0

2019-06-17 Thread Juergen Gross
On 09.05.19 19:25, Ankur Arora wrote: Xenhost type xenhost_r0 does not support standard GNTTABOP_map_grant_ref semantics (map a gref onto a specified host_addr). That's because since the hypervisor is local (same address space as the caller of GNTTABOP_map_grant_ref), there is no external entity

[RFC PATCH 16/16] xen/grant-table: host_addr fixup in mapping on xenhost_r0

2019-05-09 Thread Ankur Arora
Xenhost type xenhost_r0 does not support standard GNTTABOP_map_grant_ref semantics (map a gref onto a specified host_addr). That's because since the hypervisor is local (same address space as the caller of GNTTABOP_map_grant_ref), there is no external entity that could map an arbitrary page underne