Messages in this thread | | | Subject | Re: [PATCH 1/5] xen: add "not_essential" flag to struct xenbus_driver | From | Andrew Cooper <> | Date | Fri, 22 Oct 2021 10:28:40 +0100 |
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On 22/10/2021 07:47, Juergen Gross wrote: > When booting the xenbus driver will wait for PV devices to have > connected to their backends before continuing. The timeout is different > between essential and non-essential devices. > > Non-essential devices are identified by their nodenames directly in the > xenbus driver, which requires to update this list in case a new device > type being non-essential is added (this was missed for several types > in the past). > > In order to avoid this problem, add a "not_essential" flag to struct > xenbus_driver which can be set to "true" by the respective frontend. > > Set this flag for the frontends currently regarded to be not essential > (vkbs and vfb) and use it for testing in the xenbus driver. > > Signed-off-by: Juergen Gross <jgross@suse.com>
Wouldn't it be better to annotate essential? That way, when new misc drivers come along, they don't by default block boot.
~Andrew
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