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authorLuca Miccio <lucmiccio@gmail.com>2022-05-13 14:19:38 -0700
committerJuergen Gross <jgross@suse.com>2022-05-19 14:44:08 +0200
commit5b3353949e89d48b4faf54a9cc241ee5d70df615 (patch)
tree70ebb30e809b6539c91c622e14621e899ccb8198 /drivers/char
parent62db0fafa8fc0f6c9f901e7eefdfc6bbd9731ec9 (diff)
downloadlinux-5b3353949e89d48b4faf54a9cc241ee5d70df615.tar.bz2
xen: add support for initializing xenstore later as HVM domain
When running as dom0less guest (HVM domain on ARM) the xenstore event channel is available at domain creation but the shared xenstore interface page only becomes available later on. In that case, wait for a notification on the xenstore event channel, then complete the xenstore initialization later, when the shared page is actually available. The xenstore page has few extra field. Add them to the shared struct. One of the field is "connection", when the connection is ready, it is zero. If the connection is not-zero, wait for a notification. Signed-off-by: Luca Miccio <lucmiccio@gmail.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20220513211938.719341-2-sstabellini@kernel.org Signed-off-by: Juergen Gross <jgross@suse.com>
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