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path: root/hw/core/hotplug.c
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2016-11-15qdev: hotplug: drop HotplugHandler.post_plug callbackXiao Guangrong
as nvdimm acpi is okay to build fit when the nvdimm device has not been 'realized' Suggested-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com>
2016-11-01nvdimm acpi: introduce fit bufferXiao Guangrong
The buffer is used to save the FIT info for all the presented nvdimm devices which is updated after the nvdimm device is plugged or unplugged. In the later patch, it will be used to construct NVDIMM ACPI _FIT method which reflects the presented nvdimm devices after nvdimm hotplug As FIT buffer can not completely mapped into guest address space, OSPM will exit to QEMU multiple times, however, there is the race condition - FIT may be changed during these multiple exits, so that some rules are introduced: 1) the user should hold the @lock to access the buffer and 2) mark @dirty whenever the buffer is updated. @dirty is cleared for the first time OSPM gets fit buffer, if dirty is detected in the later access, OSPM will restart the access As fit should be updated after nvdimm device is successfully realized so that a new hotplug callback, post_hotplug, is introduced Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-17qdev: hotplug: Introduce HotplugHandler.pre_plug() callbackIgor Mammedov
pre_plug callback is to be called before device.realize() is executed. This would allow to check/set device's properties from HotplugHandler. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-01-29hw/core: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-37-git-send-email-peter.maydell@linaro.org
2014-10-15qdev: HotplugHandler: Provide unplug callbackIgor Mammedov
It is to be called for actual device removal and will allow to separate request and removal handling phases of x86-CPU devices and also it's a handler to be called for synchronously removable devices. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qdev: HotplugHandler: Rename unplug callback to unplug_requestIgor Mammedov
'HotplugHandler.unplug' callback is currently used as async call to issue unplug request for device that implements it. Renaming 'unplug' callback to 'unplug_request' should help to avoid confusion about what callback does and would allow to introduce 'unplug' callback that would perform actual device removal when guest is ready for it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-10define hotplug interfaceIgor Mammedov
Provide a generic hotplug interface for hotplug handlers. Intended for replacing hotplug mechanism used by PCI/PCIE/SHPC code and will be used for memory hotplug. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>