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* xen: clean up xenbus internal headersJuergen Gross2017-02-091-88/+0Star
| | | | | | | | | | | | | | | | The xenbus driver has an awful mixture of internally and globally visible headers: some of the internally used only stuff is defined in the global header include/xen/xenbus.h while some stuff defined in internal headers is used by other drivers, too. Clean this up by moving the externally used symbols to include/xen/xenbus.h and the symbols used internally only to a new header drivers/xen/xenbus/xenbus.h replacing xenbus_comms.h and xenbus_probe.h Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
* xen: remove DEFINE_XENBUS_DRIVER() macroDavid Vrabel2014-10-061-1/+3
| | | | | | | | | | The DEFINE_XENBUS_DRIVER() macro looks a bit weird and causes sparse errors. Replace the uses with standard structure definitions instead. This is similar to pci and usb device registration. Signed-off-by: David Vrabel <david.vrabel@citrix.com>
* xenbus: convert bus code to use dev_groupsGreg Kroah-Hartman2013-10-171-1/+1
| | | | | | | | | | | | The dev_attrs field of struct bus_type is going away soon, dev_groups should be used instead. This converts the xenbus code to use the correct field. Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: <xen-devel@lists.xenproject.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xenbus: save xenstore local status for later useAurelien Chartier2013-05-291-0/+7
| | | | | | | | | | | Save the xenstore local status computed in xenbus_init. It can then be used later to check if xenstored is running in this domain. Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com> [Changes in v4: - Change variable name to xen_store_domain_type] Reviewed-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Xen: consolidate and simplify struct xenbus_driver instantiationJan Beulich2012-01-041-3/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | The 'name', 'owner', and 'mod_name' members are redundant with the identically named fields in the 'driver' sub-structure. Rather than switching each instance to specify these fields explicitly, introduce a macro to simplify this. Eliminate further redundancy by allowing the drvname argument to DEFINE_XENBUS_DRIVER() to be blank (in which case the first entry from the ID table will be used for .driver.name). Also eliminate the questionable xenbus_register_{back,front}end() wrappers - their sole remaining purpose was the checking of the 'owner' field, proper setting of which shouldn't be an issue anymore when the macro gets used. v2: Restore DRV_NAME for the driver name in xen-pciback. Signed-off-by: Jan Beulich <jbeulich@suse.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xenbus: Support HVM backendsDaniel De Graaf2011-12-201-0/+2
| | | | | | | | | | | Add HVM implementations of xenbus_(map,unmap)_ring_v(alloc,free) so that ring mappings can be done without using GNTMAP_contains_pte which is not supported on HVM. This also removes the need to use vmlist_lock on PV by tracking the allocated xenbus rings. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> [v1: Fix compile error when XENBUS_FRONTEND is defined as module] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Xen: fix braces coding style issue in xenbus_probe.hRuslan Pisarev2011-07-261-2/+1Star
| | | | | | | This is a patch to the xenbus_probe.h file that fixed up braces errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: Populate xenbus device attributesBastian Blank2011-06-301-0/+2
| | | | | | | | | | | | The xenbus bus type uses device_create_file to assign all used device attributes. However it does not remove them when the device goes away. This patch uses the dev_attrs field of the bus type to specify default attributes for all devices. Signed-off-by: Bastian Blank <waldi@debian.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: xenbus PM events supportKazuhiro SUZUKI2011-03-161-1/+2
| | | | | | | | | | | | | Make xenbus frontend device subscribe to PM events to receive suspend/resume/freeze/thaw/restore notifications. Signed-off-by: Kenji Wakamiya <wkenji@jp.fujitsu.com> Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com> Signed-off-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Campbell <ian.campbell@citrix.com> [shriram--minor mods and improved commit message] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen/xenbus: fixup checkpatch issues in xenbus_probe*Ian Campbell2011-01-051-2/+4
| | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: add backend driver supportIan Campbell2011-01-051-1/+0Star
| | | | | | | | | | | Impact: backend device support Add the basic machinery to support backend drivers. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> [corresponds to 79727b851bac in git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: separate out frontend xenbusIan Campbell2011-01-051-15/+15
| | | | | | | | | | | | Impact: refactor Make a distinct frontend xenbus, in preparation for adding a backend xenbus. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> [corresponds to 2fd433a4188f in git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git with adjustments to reflect changes in the code which is moved] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* xen: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-061-1/+3
| | | | | | CC: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* xen: add the Xenbus sysfs and virtual device hotplug driverJeremy Fitzhardinge2007-07-181-0/+74
This communicates with the machine control software via a registry residing in a controlling virtual machine. This allows dynamic creation, destruction and modification of virtual device configurations (network devices, block devices and CPUS, to name some examples). [ Greg, would you mind giving this a review? Thanks -J ] Signed-off-by: Ian Pratt <ian.pratt@xensource.com> Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Cc: Greg KH <greg@kroah.com>
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