xen/events: use the FIFO-based ABI if available

Browse source

Implement all the event channel port ops for the FIFO-based ABI.

If the hypervisor supports the FIFO-based ABI, enable it by
initializing the control block for the boot VCPU and subsequent VCPUs
as they are brought up and on resume.  The event array is expanded as
required when event ports are setup.

The 'xen.fifo_events=0' command line option may be used to disable use
of the FIFO-based ABI.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

...

This commit is contained in:

David Vrabel 2013-03-15 13:02:35 +00:00 • committed by Konrad Rzeszutek Wilk

parent 8785c67663

commit 1fe565517b

4 changed files with 448 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/xen/events/Makefile

View file

14

drivers/xen/events/events_base.c

View file

426

drivers/xen/events/events_fifo.c

View file

8

drivers/xen/events/events_internal.h

View file