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2014-10-20virtio-blk: Rename VirtIOBlkConf variables to confMarkus Armbruster
This is consistent with how VirtIOFOOConf variables are named elsewhere, and makes blk available for BlockBackend variables. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20virtio-blk: Drop redundant VirtIOBlock member confMarkus Armbruster
Commit 12c5674 turned it into a pointer to member blk.conf. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Rename BlockDriverAIOCB* to BlockAIOCB*Markus Armbruster
I'll use BlockDriverAIOCB with block backends shortly, and the name is going to fit badly there. It's a block layer thing anyway, not just a block driver thing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-16Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141015-1' into ↵Peter Maydell
staging vga-pci: add qext region to mmio vga: Remove unused arrays dmask4 and dmask16 # gpg: Signature made Wed 15 Oct 2014 10:12:06 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-vga-20141015-1: hw/display/vga: Remove unused arrays dmask4 and dmask16 vga-pci: add qext region to mmio Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-16Merge remote-tracking branch 'remotes/kraxel/tags/pull-bootindex-20141015-1' ↵Peter Maydell
into staging allow changing bootorder via monitor at runtime, by making bootindex a writable qom property. * remotes/kraxel/tags/pull-bootindex-20141015-1: (34 commits) bootindex: change fprintf to error_report bootindex: delete bootindex when device is removed bootindex: move calling add_boot_device_patch to bootindex setter function ide: add calling add_boot_device_patch in bootindex setter function nvma: ide: add bootindex to qom property usb-storage: add bootindex to qom property virtio-blk: alias bootindex property explicitly for virt-blk-pci/ccw/s390 block: remove bootindex property from qdev to qom virtio-blk: add bootindex to qom property ide: add bootindex to qom property scsi: add bootindex to qom property isa-fdc: remove bootindexA/B property from qdev to qom redirect: remove bootindex property from qdev to qom vfio: remove bootindex property from qdev to qom pci-assign: remove bootindex property from qdev to qom host-libusb: remove bootindex property from qdev to qom virtio-net: alias bootindex property explicitly for virt-net-pci/ccw/s390 net: remove bootindex property from qdev to qom usb-net: add bootindex to qom property vmxnet3: add bootindex to qom property ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-15vga-pci: add qext region to mmioGerd Hoffmann
Add a qemu extented register range to the standard vga mmio bar. Right nowe there are two registers: One readonly register returning the size of the region (so we can easily add more registers there if needed) and one endian control register, so guests (especially ppc) can flip the framebuffer endianness as they need it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2014-10-15block: remove bootindex property from qdev to qomGonglei
Remove bootindex form qdev property to qom, things will continue to work just fine, and we can use qom features which are not supported by qdev property. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15fw_cfg: add fw_cfg_machine_reset functionGonglei
We must assure that the changed bootindex can take effect when guest is rebooted. So we introduce fw_cfg_machine_reset(), which change the fw_cfg file's bootindex data using the new global fw_boot_order list. Signed-off-by: Chenliang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15qdev: Drop legacy_name from qdev propertiesGonglei
The legacy_name is useless now, better help information is provided by description field of property. Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qdev: Add description field in PropertyInfo structGonglei
The descriptions can serve as documentation in the code, and they can be used to provide better help. Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15qdev: Drop legacy hotplug fields/methodsIgor Mammedov
It removes not needed anymore BusState::allow_hotplug field and DeviceClass::unplug callback. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15scsi: Cleanup not used anymore SCSIBusInfo{hotplug, hot_unplug} fieldsIgor Mammedov
SCSI subsytem was converted to hotplug handler API and doesn't use SCSIBusInfo{hotplug, hot_unplug} fields and related callbacks anymore. 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: Add wrapper to set BUS as HotplugHandlerIgor Mammedov
To be used for conversion of SCSI and USB devices, and would allow to make every HBA/USB host switch to HotplugHandler API without touching each controller explicitly. 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: Add simple/generic unplug callback for HotplugHandlerIgor Mammedov
It will be used in shallow conversion from legacy hotplug mechanism and eventually replace all the uses of old mechanism DeviceClass::unplug = qdev_simple_unplug_cb() 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: 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>
2014-10-15Access BusState::allow_hotplug using wraper qbus_is_hotpluggable()Igor Mammedov
It would allow to transparently switch detection whether Bus is hotpluggable from allow_hotplug field to hotplug_handler link and to drop allow_hotplug field once all users are converted to hotplug handler API. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-09Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
Four changes here. Polling for reconnection of character devices, the QOMification of accelerators, a fix for -kernel support on x86, and one for a recently-introduced virtio-scsi optimization. # gpg: Signature made Thu 09 Oct 2014 14:36:50 BST using RSA key ID 4E6B09D7 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: (28 commits) qemu-char: Fix reconnect socket error reporting qemu-sockets: Add error to non-blocking connect handler qemu-error: Add error_vreport() virtio-scsi: fix use-after-free of VirtIOSCSIReq linuxboot: compute initrd loading address kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct accel: Create accel object when initializing machine accel: Pass MachineState object to accel init functions accel: Rename 'init' method to 'init_machine' accel: Move accel init/allowed code to separate function accel: Remove tcg_available() function accel: Move qtest accel registration to qtest.c accel: Move Xen registration code to xen-common.c accel: Move KVM accel registration to kvm-all.c accel: Report unknown accelerator as "not found" instead of "does not exist" accel: Make AccelClass.available() optional accel: Use QOM classes for accel types accel: Move accel name lookup to separate function accel: Simplify configure_accelerator() using AccelType *acc variable accel: Create AccelType typedef ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-09accel: Create accel object when initializing machineEduardo Habkost
Create an actual TYPE_ACCEL object when initializing a machine. This will allow accelerator classes to implement some initialization on instance_init, and to save state on the TYPE_ACCEL object. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-09accel: Pass MachineState object to accel init functionsEduardo Habkost
Most of the machine options and machine state information is in the MachineState object, not on the MachineClass. This will allow init functions to use the MachineState object directly instead of qemu_get_machine_opts() or the current_machine global. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-04accel: Move Xen registration code to xen-common.cEduardo Habkost
Note that this has an user-visible side-effect: instead of reporting "Xen is not supported for this target", QEMU binaries not supporting Xen will report "xen accelerator does not exist". As xen_available() always return 1 when CONFIG_XEN is enabled, we don't need to set AccelClass.available anymore. xen_enabled() is not being removed yet, but only because vl.c is still using it. This also allows us to make xen_init() static. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-03pc/vl: Add units-per-default-bus propertyJohn Snow
This patch adds the 'units_per_default_bus' property which allows individual boards to declare their desired index => (bus,unit) mapping for their default HBA, so that boards such as Q35 can specify that its default if_ide HBA, AHCI, only accepts one unit per bus. This property only overrides the mapping for drives matching the block_default_type interface. This patch also adds this property to *all* past and present Q35 machine types. This retroactive addition is justified because the previous erroneous index=>(bus,unit) mappings caused by lack of such a property were not utilized due to lack of initialization code in the Q35 init routine. Further, semantically, the Q35 board type has always had the property that its default HBA, AHCI, only accepts one unit per bus. The new code added to add devices to drives relies upon the accuracy of this mapping. Thus, the property is applied retroactively to reduce complexity of allowing IDE HBAs with different units per bus. Examples: Prior to this patch, all IDE HBAs were assumed to use 2 units per bus (Master, Slave). When using Q35 and AHCI, however, we only allow one unit per bus. -hdb foo.qcow2 would become index=1, or bus=0,unit=1. -hdd foo.qcow2 would become index=3, or bus=1,unit=1. -drive file=foo.qcow2,index=5 becomes bus=2,unit=1. These are invalid for AHCI. They now become, under Q35 only: -hdb foo.qcow2 --> index=1, bus=1, unit=0. -hdd foo.qcow2 --> index=3, bus=3, unit=0. -drive file=foo.qcow2,index=5 --> bus=5,unit=0. The mapping is adjusted based on the fact that the default IF for the Q35 machine type is IF_IDE, and units-per-default-bus overrides the IDE mapping from its default of 2 units per bus to just 1 unit per bus. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 1412187569-23452-4-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-30Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
This update brings dataplane to virtio-scsi (NOT yet 100% thread-safe, though, which makes it really, really experimental. It also brings asynchronous cancellation to the SCSI subsystem and implements it in virtio-scsi. This is a pretty important feature. Almost all the work here was done by Fam Zheng. I also included the virtio refcount fixes from Gonglei, because they had a small conflict with virtio-scsi dataplane. This pull request is using the new subkey 4E6B09D7. # gpg: Signature made Tue 30 Sep 2014 12:31:02 BST using RSA key ID 4E6B09D7 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: (39 commits) block/iscsi: handle failure on malloc of the allocationmap util: introduce bitmap_try_new virtio-scsi: Handle TMF request cancellation asynchronously scsi: Introduce scsi_req_cancel_async scsi: Introduce scsi_req_cancel_complete scsi: Drop SCSIReqOps.cancel_io scsi: Unify request unref in scsi_req_cancel scsi-generic: Handle canceled request in scsi_command_complete scsi: Drop scsi_req_abort virtio-scsi: Process ".iothread" property virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling virtio-scsi: Batched prepare for cmd reqs virtio-scsi: Two stages processing of cmd request virtio-scsi: Add migration state notifier for dataplane code virtio-scsi: Hook up with dataplane virtio-scsi-dataplane: Code to run virtio-scsi on iothread virtio-scsi: Add VirtIOSCSIVring in VirtIOSCSIReq virtio-scsi: Add 'iothread' property to virtio-scsi virtio: add a wrapper for virtio-backend initialization virtio-9p: fix virtio-9p child refcount in transports ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-30virtio-scsi: Handle TMF request cancellation asynchronouslyFam Zheng
For VIRTIO_SCSI_T_TMF_ABORT_TASK and VIRTIO_SCSI_T_TMF_ABORT_TASK_SET, use scsi_req_cancel_async to start the cancellation. Because each tmf command may cancel multiple requests, we need to use a counter to track the number of remaining requests we still need to wait for. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30scsi: Introduce scsi_req_cancel_asyncFam Zheng
Devices will call this function to start an asynchronous cancellation. The bus->info->cancel will be called after the request is canceled. Devices will probably need to track a separate TMF request that triggers this cancellation, and wait until the cancellation is done before completing it. So we store a notifier list in SCSIRequest and in scsi_req_cancel_complete we notify them. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30scsi: Introduce scsi_req_cancel_completeFam Zheng
Let the aio cb do the clean up and notification job after scsi_req_cancel, in preparation for asynchronous cancellation. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30scsi: Drop SCSIReqOps.cancel_ioFam Zheng
The only two implementations are identical to each other, with nothing specific to device: they only call bdrv_aio_cancel with the SCSIRequest.aiocb. Let's move it to scsi-bus. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30scsi: Drop scsi_req_abortFam Zheng
The only user of this function is spapr_vscsi.c. We can convert to scsi_req_cancel plus adding a check in vscsi_request_cancelled. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> [Drop prototype. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Batched prepare for cmd reqsFam Zheng
Queue the popped requests while calling virtio_scsi_handle_cmd_req_prepare(), then submit them after all prepared. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Two stages processing of cmd requestFam Zheng
Mechanical change, in preparation for bdrv_io_plug/bdrv_io_unplug. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add migration state notifier for dataplane codeFam Zheng
Similar to virtio-blk-dataplane, we stop the iothread while migration starts and restart it when migration finishes. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi-dataplane: Code to run virtio-scsi on iothreadFam Zheng
This implements the core part of dataplane feature of virtio-scsi. A few fields are added in VirtIOSCSICommon to maintain the dataplane status. These fields are managed by a new source file: virtio-scsi-dataplane.c. Most code in this file will run on an iothread, unless otherwise commented as in a global mutex context, such as those functions to start, stop and setting the iothread property. Upon start, we set up guest/host event notifiers, in a same way as virtio-blk does. The handlers then pop request from vring and call into virtio-scsi.c functions to process it. So we need to make sure make all those called functions work with iothread, too. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add VirtIOSCSIVring in VirtIOSCSIReqFam Zheng
Move VirtIOSCSIReq to header and add one field "vring" as a wrapper structure of Vring, VirtIOSCSIVring. This is necessary for coming dataplane code that runs uses vring on iothread. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-scsi: Add 'iothread' property to virtio-scsiFam Zheng
Similar to this property in virtio-blk for dataplane, add it as a QOM link in virtio-scsi and an alias in virtio-scsi-pci and virtio-scsi-ccw, in order to assign an iothread to the device. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio: add a wrapper for virtio-backend initializationGonglei
For better code sharing, add a helper function that handles reference counting of the virtio backend for virtio proxy devices. Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-29loader: g_realloc(p, 0) frees and returns NULL, simplifyMarkus Armbruster
Once upon a time, it was decided that qemu_realloc(ptr, 0) should abort. Switching to glib retired that bright idea. A bit of code that was added to cope with it (commit 3e372cf) is still around. Bury it. See also commit 6528499. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-24virtio: Fix wrong type cast from pointer to longStefan Weil
Compiler warning (w32, w64): include/hw/virtio/virtio_ring.h:142:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] When sizeof(long) < sizeof(void *), this is not only a warning but a real program error. Add also missing blanks in the same statement. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1411536002-14088-1-git-send-email-sw@weilnetz.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-23Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20140923-1' into ↵Peter Maydell
staging usb: enable hotplug, switch to realize, ohci tracing, misc fixes. # gpg: Signature made Tue 23 Sep 2014 12:42:29 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-usb-20140923-1: (26 commits) usb: tag standalone ehci as hotpluggable usb: tag standalone uhci as hotpluggable usb: tag xhci as hotpluggable usb-serial: only check speed once at realize time usb-bus: introduce a wrapper function to check speed usb-bus: remove "init" from USBDeviceClass struct usb-mtp: convert init to realize usb-redir: convert init to realize usb-audio: convert init to realize dev-wacom: convert init to realize dev-hid: convert init to realize usb-ccid: convert init to realize dev-serial: convert init to realize dev-bluetooth: convert init to realize dev-uas: using error_report instead of fprintf dev-uas: convert init to realize dev-storage: usring error_report instead of fprintf/printf dev-storage: convert init to realize usb-hub: convert init to realize libusb: using error_report instead of fprintf ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-23virtio-scsi: Make virtio_scsi_push_event publicFam Zheng
Later this will be called by dataplane code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Make virtio_scsi_free_req publicFam Zheng
To share with dataplane code later. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Make virtio_scsi_init_req publicFam Zheng
To share with datplane code later. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Split virtio_scsi_handle_ctrl_req from virtio_scsi_handle_ctrlFam Zheng
To share with dataplane code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23virtio-scsi: Split virtio_scsi_handle_cmd_req from virtio_scsi_handle_cmdFam Zheng
This is the "common part" to handle one cmd request. Refactor out for later usage of dataplane iothread code. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23scsi: Optimize scsi_req_allocFam Zheng
Zeroing sense buffer for each scsi request is not efficient, we can just leave it uninitialized because sense_len is set to 0. Move the implicitly zeroed fields to the end of the structure and use a partial memset. The explicitly initialized fields (by scsi_req_alloc or scsi_req_new) are moved to the beginning of the structure, before sense buffer, to skip the memset. Also change g_malloc0 to g_slice_alloc. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-23Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20140923' into ↵Peter Maydell
staging s390x/kvm: some fixes and cleanups 1. sclp: get of of duplicate defines 2. ccw: implement and fix handling of some special cases # gpg: Signature made Tue 23 Sep 2014 13:10:47 BST using RSA key ID B5A61C7C # gpg: Can't check signature: public key not found * remotes/borntraeger/tags/s390x-20140923: s390x/css: catch ccw sequence errors s390x/css: support format-0 ccws s390x: remove duplicate defines in SCLP code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-23s390x: remove duplicate defines in SCLP codeJens Freimann
Let's get rid of these duplicate defines. Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-09-23usb-bus: introduce a wrapper function to check speedGonglei
In this way, we can check speed directly, don't need call usb_device_attach(), which has other conditions, such as checking the chardev is open. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-23usb-bus: remove "init" from USBDeviceClass structGonglei
All usb-bus devices are realized by realize(), remove init callback function from USBDeviceClass struct. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-23usb-bus: convert USBDeviceClass init to realizeGonglei
Add "realize/unrealize" in USBDeviceClass, which has errp as a parameter. So all the implementations now use error_setg instead of error_report for reporting error. Note: this patch still keep "init" in USBDeviceClass, and call kclass->init in usb_device_realize(), avoid breaking git bisect. After realize all usb devices, will be removed. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-09-22block: Always compile virtio-blk dataplaneFam Zheng
Dataplane doesn't depend on linux-aio any more, so we don't need the compiling condition now. Configure options are kept but just print a message. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1410329871-28885-4-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>