Henry Wang 5d626f2b87 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 11:03:53 +02:00
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Makefile	…
xenbus.h	…
xenbus_client.c	xen/xenbus: fix xenbus_setup_ring()	2022-09-16 09:50:47 +02:00
xenbus_comms.c	…
xenbus_dev_backend.c	…
xenbus_dev_frontend.c	…
xenbus_probe.c	drivers/xen: Improve the late XenStore init protocol	2024-06-12 11:03:53 +02:00
xenbus_probe_backend.c	…
xenbus_probe_frontend.c	xen: move from strlcpy with unused retval to strscpy	2022-08-25 13:38:07 +02:00
xenbus_xs.c	…