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path: root/hw/pci-hotplug.c
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2012-12-17pci: move pci core code to hw/pciMichael S. Tsirkin
Move files and modify makefiles to pick them at the new location. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-07Clean up pci_drive_hot_add()'s use of BlockInterfaceTypeMarkus Armbruster
pci_drive_hot_add() parameter type has the wrong type: int instead of BlockInterfaceType. It's actually redundant, so we can just drop it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-26hmp: do not crash on invalid SCSI hotplugPaolo Bonzini
Commit 0d93692 (qdev: Convert busses to QEMU Object Model, 2012-05-02) removed a check on the type of the bus where a SCSI disk is hotplugged. However, hot-plugging to the wrong kind of device now causes a crash due to either a NULL pointer dereference (avoided by the previous patch) or a failed QOM cast. Instead, in this case we need to use object_dynamic_cast and check for the result, similar to what was done before that commit. Reported-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-18qdev: Convert busses to QEMU Object ModelAnthony Liguori
This is far less interesting than it sounds. We simply add an Object to each BusState and then register the types appropriately. Most of the interesting refactoring will follow in the next patches. Since we're changing fundamental type names (BusInfo -> BusClass), it all needs to convert at once. Fortunately, not a lot of code is affected. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Made all new bus TypeInfos static const.] [AF: Made qbus_free() call object_delete(), required {qom,glib}_allocated] Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-04net: net_client_init(): use error_set()Luiz Capitulino
Callers are changed to use qerror_report_err() to keep their QError semantics. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-By: Laszlo Ersek <lersek@redhat.com>
2012-06-04net: purge the monitor object from all init functionsLuiz Capitulino
The only backend that really uses it is the socket one, which calls monitor_get_fd(). But it can use 'cur_mon' instead. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-By: Laszlo Ersek <lersek@redhat.com>
2012-04-09qdev: qdev_unplug(): use error_set()Luiz Capitulino
It currently uses qerror_report(), but next commit will convert the drive_del command to the QAPI and this requires using error_set(). One particularity of qerror_report() is that it knows when it's running on monitor context or command-line context and prints the error message accordingly. error_set() doesn't do this, so we have to be careful not to drop error messages. qdev_unplug() has three kinds of usages: 1. It's called when hot adding a device fails, to undo anything that has been done before hitting the error 2. It's called by function monitor functions like device_del(), to unplug a device 3. It's used by xen_platform.c in a way that doesn't _seem_ to be in monitor context Only item 2 can print an error message to the user, this commit maintains that. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-01-04Add generic drive hotpluggingAlexander Graf
The monitor command for hotplugging is in i386 specific code. This is just plain wrong, as S390 just learned how to do hotplugging too and needs to get drives for that. So let's add a generic copy to generic code that handles drive_add in a way that doesn't have pci dependencies. All pci specific code can then be handled in a pci specific function. Signed-off-by: Alexander Graf <agraf@suse.de> --- v1 -> v2: - align generic drive_add to pci specific one - rework to split between generic and pci code v2 -> v3: - remove comment
2011-11-22usb-msd: do not register twice in the boot orderPaolo Bonzini
USB mass storage devices are registered twice in the boot order. To avoid having to keep the two paths in sync, pass the bootindex property down to the scsi-disk device and let it register itself. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-03-28pci: use devfn for pci_find_device() instead of (slot, fn) pairIsaku Yamahata
(slot, fn) pair is somewhat confusing because of ARI. So use devfn for pci_find_device() instead of (slot, fn). Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-02-07blockdev: add refcount to DriveInfoMarcelo Tosatti
The host part of a block device can be deleted with in progress block migration. To fix this, add a reference count to DriveInfo, freeing resources on last reference. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-01-31scsi hotplug: Set DriveInfo member bus correctlyMarkus Armbruster
drive_init() picks the first free bus and unit number, unless the user specifies them. This isn't a good fit for the drive_add monitor command, because there we specify the controller by PCI address instead of using bus number set by drive_init(). scsi_hot_add() takes care to replace the unit number set by drive_init() by the real one, but it neglects to replace the bus number. Thus, bus/unit in DriveInfo may be bogus. Affects drive_get() and drive_get_max_bus(). I'm not aware of anything bad happening because of that; looks like by the time we're hot-plugging, the two functions aren't used anymore. Fix it anyway. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-01-24scsi: Allow scsi_bus_legacy_add_drive() to set removable bitStefan Hajnoczi
scsi-disk devices may wish to override the removable bit. Add support for a qdev property on SCSI devices. This is will be used by usb-msd. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-08-24Rearrange block headersBlue Swirl
Changing block.h or blockdev.h resulted in recompiling most objects. Move DriveInfo typedef and BlockInterfaceType enum definitions to qemu-common.h and rearrange blockdev.h use to decrease churn. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-08-22QemuOpts: make most qemu_*_opts staticGerd Hoffmann
Switch tree to lookup-by-name using qemu_find_opts(). Also hook up virtfs options so qemu_find_opts works for them too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-07-11pci hotplug: make pci_device_hot_remove() staticIsaku Yamahata
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-07-02block: Catch attempt to attach multiple devices to a blockdevMarkus Armbruster
For instance, -device scsi-disk,drive=foo -device scsi-disk,drive=foo happily creates two SCSI disks connected to the same block device. It's all downhill from there. Device usb-storage deliberately attaches twice to the same blockdev, which fails with the fix in place. Detach before the second attach there. Also catch attempt to delete while a guest device model is attached. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-07-02qdev: Decouple qdev_prop_drive from DriveInfoMarkus Armbruster
Make the property point to BlockDriverState, cutting out the DriveInfo middleman. This prepares the ground for block devices that don't have a DriveInfo. Currently all user-defined ones have a DriveInfo, because the only way to define one is -drive & friends (they go through drive_init()). DriveInfo is closely tied to -drive, and like -drive, it mixes information about host and guest part of the block device. I'm working towards a new way to define block devices, with clean host/guest separation, and I need to get DriveInfo out of the way for that. Fortunately, the device models are perfectly happy with BlockDriverState, except for two places: ide_drive_initfn() and scsi_disk_initfn() need to check the DriveInfo for a serial number set with legacy -drive serial=... Use drive_get_by_blockdev() there. Device model code should now use DriveInfo only when explicitly dealing with drives defined the old way, i.e. without -device. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-07-02scsi: scsi_bus_legacy_handle_cmdline() can fail, fix callersMarkus Armbruster
None of its callers checks for failure. scsi_hot_add() can crash because of that: (qemu) drive_add 4 if=scsi,format=host_device,file=/dev/sg1 scsi-generic: scsi generic interface too old Segmentation fault (core dumped) Fix all callers, not just scsi_hot_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-06-04blockdev: Collect block device code in new blockdev.cMarkus Armbruster
Anything that moves hundreds of lines out of vl.c can't be all bad. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-05-31pci-hotplug: make them aware of pci domain.Isaku Yamahata
add helper function which converts root bus to pci domain. make them aware of pci domain. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-05-19Revert "monitor: Convert do_pci_device_hot_remove() to QObject"Markus Armbruster
We don't want pci_del in QMP. Use device_del instead. This reverts commit 6848d827162fea039f2658414a4adb6164a4f9b0. Conflicts: hw/pci-hotplug.c sysemu.h Signed-off-by: Markus Armbruster <armbru@redhat.com>
2010-05-19Revert "PCI: Convert pci_device_hot_add() to QObject"Markus Armbruster
Short story: We don't want pci_add in QMP. Long story follows. pci_add can do two things: * Hot plug a PCI NIC. device_add is more general. * Hot plug a PCI disk controller, and a drive connected to it. The controller is either virtio-blk-pci (if=virtio) or lsi53c895a (if=scsi). With the latter, the drive is optional. Use drive_add to hotplug additional SCSI drives. Except drive_add is not available in QMP. device_add is more general for controllers and the guest part of drives. I'm working on a more general alternative for the host part of drives. Why am I proposing to remove pci_add from QMP before its replacement is ready? I want it out sooner rather than later, because it isn't fully functional (errors and drive_add are missing), and we do not plan to complete the job. In other words, it's not really usable over QMP now, and it's not what we want for QMP anyway. Since we don't want it to be used over QMP, we should take it out, not leave it around as a trap for the uninitiated. Dan Berrange confirmed that libvirt has no need for pci_add & friends over QMP. This reverts commit 7a344f7ac7bb651d0556a933ed8060d3a9e5d949. Conflicts: hw/pci-hotplug.c sysemu.h Signed-off-by: Markus Armbruster <armbru@redhat.com>
2010-04-25x86: remove dead assignments, spotted by clang analyzerBlue Swirl
Value stored is never read. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-18error: Drop extra messages after qemu_opts_set() and qemu_opts_parse()Markus Armbruster
Both functions report errors nicely enough now, no need for additional messages. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-03-16qemu-option: Move the implied first name into QemuOptsListMarkus Armbruster
We sometimes permit omitting the first option name, for example -device foo is short for -device driver=foo. The name to use ("driver" in the example) is passed as argument to qemu_opts_parse(). For each QemuOptsList, we use at most one such name. Move the name into QemuOptsList, and pass whether to permit the abbreviation. This ensures continued consistency, and simplifies the commit after next in this series.
2010-03-16error: Replace qemu_error() by error_report()Markus Armbruster
error_report() terminates the message with a newline. Strip it it from its arguments. This fixes a few error messages lacking a newline: net_handle_fd_param()'s "No file descriptor named %s found", and tap_open()'s "vnet_hdr=1 requested, but no kernel support for IFF_VNET_HDR available" (all three versions). There's one place that passes arguments without newlines intentionally: load_vmstate(). Fix it up.
2010-03-16error: Don't abuse qemu_error() for non-error in scsi_hot_add()Markus Armbruster
Commit 30d335d6 converted an informational message from monitor_printf() to qemu_error(), probably because the latter doesn't need a mon argument. A later commit will make qemu_error() print additional stuff that is only appropriate for proper errors, and then this will break. Clean it up.
2010-02-19Monitor: Convert pci_device_hot_remove() to cmd_new_ret()Luiz Capitulino
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-19Monitor: Convert pci_device_hot_add() to cmd_new_ret()Luiz Capitulino
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-10Monitor: remove unneeded checksLuiz Capitulino
It's not needed to check the return of qobject_from_jsonf() anymore, as an assert() has been added there. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-18Fix backcompat for hotplug of SCSI controllersDaniel P. Berrange
SCSI controllers have no trouble existing without any attached disks. This could be achieved with the (legacy) monitor syntax pci_add pci_addr=auto storage if=scsi This is now denied with scsi requires a backing file/device. failed to add if=scsi There is no need for this denial and it breaks compatability with existing QEMU usage, so remove the check for presence of a drive. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12PCI: Convert pci_device_hot_add() to QObjectLuiz Capitulino
Return a QDict with information about the just added device. This commit should not change user output. Please, note that this patch does not do error handling conversion. In error conditions the handler still calls monitor_printf(). Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12scsi: fix drive hotplug.Gerd Hoffmann
This patch fills the DriveInfo->unit after hotplugging a scsi disk. It makes a difference when auto-assigning a scsi id, where unit was left filled with '-1' instead of the actual scsi id. With this patch applied the the drive naming logic in drive_init() works as good as it did in previous releases. Which means it works fine with a single scsi bus. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12pci: don't abort() when trying to hotplug with acpi off.Gerd Hoffmann
The PCI bus on x86 requires ACPI for hotplug support, thus disbling ACPI also disables hotplug for the PCI bus. This patch makes qemu check whenever the PCI bus in question can handle hotplug before trying to add devices. This is needed because qdev will abort() on any attempt to hotplug devices into a non-hotpluggable bus. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-01pci: s/pci_find_host_bus/pci_find_root_bus/gIsaku Yamahata
This patch renames pci_find_host_bus() to pci_find_root_bus() as suggested by "Michael S. Tsirkin" <mst@redhat.com>. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-11-09pci: make pci configuration transaction more accurate.Isaku Yamahata
This patch sorts out/enhances pci code to track pci bus topology more accurately. - Track host bus bridge with pci domain number. Although the current qemu implementation supports only pci domian 0 yet. - Track pci bridge parent-child relationship. When looking down from pci host bus for pci sub bus, be aware of secondary bus/subordinate bus. Thus pci configuration transaction is more accurately emulated. This patch adds new member to PCIBus to track pci bus topology. Since qdev already tracks down bus relationship, those new member wouldn't be necessary. However it would be addressed later because not all the pci device isn't converted to qdev yet. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09scsi: move scsi-disk.h -> scsi.hGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27monitor: Convert do_pci_device_hot_remove() to QObjectLuiz Capitulino
Errors are still directly printed, as we are only converting regular output. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27hotplug: more fixes for scsi disk hotplug.Gerd Hoffmann
Changes: - create common scsi_hot_add function for adding a scsi disk to a adapter. - Add sanity checks. You can't drive_add disks to the VGA any more. - Ignore the unit value calculated by drive_init, add a comment explaining why. Review the patch to find the details ;) Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27hotplug: fix "pci_add storage if=scsi"Gerd Hoffmann
Explicitly add the drive to the bus of the newly created scsi adapter instead of hoping that scsi_bus_legacy_handle_cmdline() picks it up correctly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27kill dead nic unplug code.Gerd Hoffmann
Cleanup on unplug happens via qdev->exit() callback now. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15net: handle -netdevice optionsMark McLoughlin
Same as for -net except for: - only tap, user, vde and socket types are supported - the vlan parameter is not allowed - the name parameter is not allowed but the id parameter is required Patchworks-ID: 35517 Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-12TARGET_I386 is always defined if TARGET_X86_64 is definedJuan Quintela
Patchworks-ID: 35378 Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-07Check return value of qdev_init()Markus Armbruster
But do so only where it may actually fail. Leave the rest for the next commit. Patchworks-ID: 35167 Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Final net cleanup after conversion to QemuOptsMark McLoughlin
Now that net_client_init() has no users, kill it off and rename net_client_init_from_opts(). There is no further need for the old code in net_client_parse() either. We use qemu_opts_parse() 'firstname' facitity for that. Instead, move the special handling of the 'vmchannel' type there. Simplify the vl.c code into merely call net_client_parse() for each -net command line option and then calling net_init_clients() later to iterate over the options and create the clients. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Port PCI NIC hotplug to QemuOptsMark McLoughlin
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06Revert "Fix exit on 'pci_add' Monitor command"Anthony Liguori
This reverts commit 0148fde54c2478ea8a47c8dbfe4c0fb8bda4d996. As requested by Luiz. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05Rename pci_create_noinit() to pci_create()Markus Armbruster
It's qdev_create() specialized for PCI, so name it accordingly. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05Fix pci_add storage not to exit on bad first argumentMarkus Armbruster
Monitor command "pci_add ADDR storage ..." does its work in qemu_pci_hot_add_nic(). It called pci_create(..., ADDR) to create the device. That's wrong, because pci_create() terminates the program when ADDR is invalid. Use pci_get_bus_devfn() and pci_create_noinit() instead. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>