Re: [Xen-devel] [PATCH] include/public/memory.h: remove the XENMEM_rsrc_acq_caller_owned flag

2019-08-27 Thread Jan Beulich
On 19.07.2019 14:25, Paul Durrant wrote: When commit 3f8f1228 "x86/mm: add HYPERVISOR_memory_op to acquire guest resources" introduced the concept of directly mapping some guest resources, it was envisaged that the memory for some resources associated with a guest may not actually be assigned to

Re: [Xen-devel] [PATCH] include/public/memory.h: remove the XENMEM_rsrc_acq_caller_owned flag

2019-07-19 Thread Andrew Cooper
On 19/07/2019 14:31, Jan Beulich wrote: > On 19.07.2019 14:41, Andrew Cooper wrote: >> On 19/07/2019 13:25, Paul Durrant wrote: >>> When commit 3f8f1228 "x86/mm: add HYPERVISOR_memory_op to acquire guest >>> resources" introduced the concept of directly mapping some guest resources, >>> it was

Re: [Xen-devel] [PATCH] include/public/memory.h: remove the XENMEM_rsrc_acq_caller_owned flag

2019-07-19 Thread Jan Beulich
On 19.07.2019 14:41, Andrew Cooper wrote: > On 19/07/2019 13:25, Paul Durrant wrote: >> When commit 3f8f1228 "x86/mm: add HYPERVISOR_memory_op to acquire guest >> resources" introduced the concept of directly mapping some guest resources, >> it was envisaged that the memory for some resources

Re: [Xen-devel] [PATCH] include/public/memory.h: remove the XENMEM_rsrc_acq_caller_owned flag

2019-07-19 Thread Andrew Cooper
On 19/07/2019 13:25, Paul Durrant wrote: > When commit 3f8f1228 "x86/mm: add HYPERVISOR_memory_op to acquire guest > resources" introduced the concept of directly mapping some guest resources, > it was envisaged that the memory for some resources associated with a guest > may not actually be

[Xen-devel] [PATCH] include/public/memory.h: remove the XENMEM_rsrc_acq_caller_owned flag

2019-07-19 Thread Paul Durrant
When commit 3f8f1228 "x86/mm: add HYPERVISOR_memory_op to acquire guest resources" introduced the concept of directly mapping some guest resources, it was envisaged that the memory for some resources associated with a guest may not actually be assigned to that guest, specifically the IOREQ server