Hi Michal, On 12/09/2023 11:53, Michal Orzel wrote:
Skip the following Xen specific host device tree nodes/properties from being included into hardware domain /chosen node: - xen,static-heap: this property informs Xen about memory regions reserved exclusively as static heap, - xen,domain-shared-memory-v1: node with this compatible informs Xen about static shared memory region for a domain. Xen exposes a different node (under /reserved-memory with compatible "xen,shared-memory-v1") to let domain know about the shared region, - xen,evtchn-v1: node with this compatible informs Xen about static event channel configuration for a domain. Xen does not expose information about static event channels to domUs and dom0 case was overlooked (by default nodes from host dt are copied to dom0 fdt unless explicitly marked to be skipped), since the author's idea was not to expose it (refer docs/misc/arm/device-tree/booting.txt, "Static Event Channel"). Even if we wanted to expose the static event channel information, the current node is in the wrong format (i.e. contains phandle to domU node not visible by dom0). Lastly, this feature is marked as tech-preview and there is no Linux dt binding in place.Signed-off-by: Michal Orzel <michal.or...@amd.com>
Acked-by: Julien Grall <jgr...@amazon.com> Cheers, -- Julien Grall
