Henry Wang e155741ec4 drivers/xen: Improve the late XenStore init protocol ... [ Upstream commit a3607581cd ] Currently, the late XenStore init protocol is only triggered properly for the case that HVM_PARAM_STORE_PFN is ~0ULL (invalid). For the case that XenStore interface is allocated but not ready (the connection status is not XENSTORE_CONNECTED), Linux should also wait until the XenStore is set up properly. Introduce a macro to describe the XenStore interface is ready, use it in xenbus_probe_initcall() to select the code path of doing the late XenStore init protocol or not. Since now we have more than one condition for XenStore late init, rework the check in xenbus_probe() for the free_irq(). Take the opportunity to enhance the check of the allocated XenStore interface can be properly mapped, and return error early if the memremap() fails. Fixes: 5b3353949e ("xen: add support for initializing xenstore later as HVM domain") Signed-off-by: Henry Wang <xin.wang2@amd.com> Signed-off-by: Michal Orzel <michal.orzel@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Link: https://lore.kernel.org/r/20240517011516.1451087-1-xin.wang2@amd.com Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-06-12 11:12:51 +02:00
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Makefile
xenbus_client.c	xen/xenbus: fix xenbus_setup_ring()	2022-09-16 09:50:47 +02:00
xenbus_comms.c	xen: Fix event channel callback via INTX/GSI	2021-01-13 16:12:00 +01:00
xenbus_dev_backend.c
xenbus_dev_frontend.c	xen/xenbus: fix return type in xenbus_file_read()	2022-08-12 12:16:39 +02:00
xenbus_probe_backend.c	driver core: make struct bus_type.uevent() take a const *	2023-01-27 13:45:52 +01:00
xenbus_probe_frontend.c	xen: xenbus: Use helper function IS_ERR_OR_NULL()	2023-08-21 09:55:11 +02:00
xenbus_probe.c	drivers/xen: Improve the late XenStore init protocol	2024-06-12 11:12:51 +02:00
xenbus_xs.c	xen/xenbus: Avoid a lockdep warning when adding a watch	2023-08-22 08:04:59 +02:00
xenbus.h	bus: Make remove callback return void	2021-07-21 11:53:42 +02:00