[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] PCI Passthrough ARM Design : Draft1
On Thu, 11 Jun 2015, Ian Campbell wrote: > On Thu, 2015-06-11 at 11:05 +0200, Roger Pau Monnà wrote: > > El 10/06/15 a les 21.21, Julien Grall ha escrit: > > >> If there is a reason for this restriction/trade off then it should be > > >> spelled out as part of the design document, as should other such design > > >> decisions (which would include explaining where this differs from how > > >> things work for x86 why they must differ). > > > > > > On x86, for HVM the MMIO mapping is done by QEMU. I know that Roger is > > > working on PCI passthrough for PVH. PVH is very similar to ARM guest and > > > I expect to see a similar needs for MMIO mapping. It would be good if we > > > can come up with a common interface. > > > > I've kind of left that apart in favour of the new boot ABI that we are > > currently discussing, but IIRC the plan was to use > > XENMEM_add_to_physmap_range by adding a new phys_map_space and the > > physical MMIO pages would be specified in the idxs field. > > This sounds ok, and preferable to an entirely new hypercall. Indeed. What would be the advantage of using XENMEM_add_to_physmap_range over XEN_DOMCTL_memory_mapping? Would it be called by libxl or by the guest kernel? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |