On 18/02/2015 17:30, Jaggi, Manish wrote:
[manish] There are general comments on the data structures (a) I don't see a use case where for same domain (VM) there would be different context banks , so linked list may not be required.
I guess you mean the list in arm_smmu_xen_domain? All the devices pass-through to a domain may not be protected by the same SMMU. Therefore the context banks are different.
Also, for now a context is allocated per-device. It should be rework to share the context between multiple device protected by the same SMMU and pass-through to the same domain.
(b) Also iommu group may not be relevant for the same reason. I am curious to find the use cases.
The iommu_group is used to store the configuration of the device protected by an SMMU (i.e the stream ids associated to this domain).
I'm a bit surprised that you think they are not useful... Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
