Jason Andryuk e6d703b693 xenbus: Allow PVH dom0 a non-local xenstore ... [ Upstream commit 90989869ba ] Make xenbus_init() allow a non-local xenstore for a PVH dom0 - it is currently forced to XS_LOCAL. With Hyperlaunch booting dom0 and a xenstore stubdom, dom0 can be handled as a regular XS_HVM following the late init path. Ideally we'd drop the use of xen_initial_domain() and just check for the event channel instead. However, ARM has a xen,enhanced no-xenstore mode, where the event channel and PFN would both be 0. Retain the xen_initial_domain() check, and use that for an additional check when the event channel is 0. Check the full 64bit HVM_PARAM_STORE_EVTCHN value to catch the off chance that high bits are set for the 32bit event channel. Signed-off-by: Jason Andryuk <jason.andryuk@amd.com> Change-Id: I5506da42e4c6b8e85079fefb2f193c8de17c7437 Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: Juergen Gross <jgross@suse.com> Message-ID: <20250506204456.5220-1-jason.andryuk@amd.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-06-04 14:42:17 +02:00
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Makefile
xenbus_client.c
xenbus_comms.c
xenbus_dev_backend.c
xenbus_dev_frontend.c
xenbus_probe_backend.c
xenbus_probe_frontend.c
xenbus_probe.c	xenbus: Allow PVH dom0 a non-local xenstore	2025-06-04 14:42:17 +02:00
xenbus_xs.c
xenbus.h