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2012-09-05qxl/update_area_io: guest_bug on invalid parametersAlon Levy
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-09-05spice: notify on vm state change only via spice_server_vm_start/stopYonit Halperin
QXLWorker->start/stop are deprecated since spice-server 0.11.2 Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31uas: move transfer kickoffGerd Hoffmann
Kick next scsi transfer from request release callback instead of command completion callback, otherwise we might get stuck in case scsi_req_unref() doesn't release the request instantly due to someone else holding a reference too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31ehci: Fix interrupt endpoints no longer workingHans de Goede
One of the recent changes (likely the addition of queuing support) has broken interrupt endpoints, this patch fixes this. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2012-08-31ehci: handle TD deactivation of inflight packetsGerd Hoffmann
Check the TDs of inflight packets, cancel packets in case the guest clears the active bit. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31ehci: add ehci_cancel_queue()Gerd Hoffmann
Factor out function to cancel all packets of a queue. No behavior change. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31ehci: simplify ehci_state_executingHans de Goede
ehci_state_executing does not need to check for p->usb_status == USB_RET_ASYNC or USB_RET_PROCERR, since ehci_execute_complete already does a similar check and will trigger an assert if either value is encountered. USB_RET_ASYNC should never be the packet status when execute_complete runs for obvious reasons, and USB_RET_PROCERR is only used by ehci_state_execute / ehci_execute not by ehci_state_executing / ehci_execute_complete. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31ehci: Remove unnecessary ehci_flush_qh callHans de Goede
ehci_qh_do_overlay() already calls ehci_flush_qh() before it returns, calling it twice is useless. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31ehci: Schedule async-bh when IAAD bit gets setHans de Goede
After the "ehci: Print a warning when a queue unexpectedly contains packets on cancel" commit. Under certain reproducable conditions I was getting the following message: "EHCI: Warning queue not empty on queue reset". After aprox. 8 hours of debugging I've finally found the cause. The Linux EHCI driver has an IAAD watchdog, to work around certain EHCI hardware sometimes not acknowledging the doorbell at all. This watchdog has a timeout of 10 ms, which is less then the time between 2 runs through the async schedule when async_stepdown is at its highest value. Thus the watchdog can trigger, after which Linux clears the IAAD bit and re-uses the QH. IOW we were not properly detecting the unlink of the qh, due to us missing (ignoring for more then 10 ms) the IAAD command, which triggered the warning. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2012-08-31ehci: Fix NULL ptr deref when unplugging an USB dev with an iso stream activeHans de Goede
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2012-08-31usb: unique packet idsGerd Hoffmann
This patch adds IDs to usb packets. Those IDs are (a) supposed to be unique for the lifecycle of a packet (from packet setup until the packet is either completed or canceled) and (b) stable across migration. uhci, ohci, ehci and xhci use the guest physical address of the transfer descriptor for this. musb needs a different approach because there is no transfer descriptor. But musb also doesn't support pipelining, so we have never more than one packet per endpoint in flight. So we go create an ID based on endpoint and device address. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31usb: Halt ep queue en cancel pending packets on a packet errorHans de Goede
For controllers which queue up more then 1 packet at a time, we must halt the ep queue, and inside the controller code cancel all pending packets on an error. There are multiple reasons for this: 1) Guests expect the controllers to halt ep queues on error, so that they get the opportunity to cancel transfers which the scheduled after the failing one, before processing continues 2) Not cancelling queued up packets after a failed transfer also messes up the controller state machine, in the case of EHCI causing the following assert to trigger: "assert(p->qtdaddr == q->qtdaddr)" at hcd-ehci.c:2075 3) For bulk endpoints with pipelining enabled (redirection to a real USB device), we must cancel all the transfers after this a failed one so that: a) If they've completed already, they are not processed further causing more stalls to be reported, originating from the same failed transfer b) If still in flight, they are cancelled before the guest does a clear stall, otherwise the guest and device can loose sync! Note this patch only touches the ehci and uhci controller changes, since AFAIK no other controllers actually queue up multiple transfer. If I'm wrong on this other controllers need to be updated too! Also note that this patch was heavily tested with the ehci code, where I had a reproducer for a device causing a transfer to fail. The uhci code is not tested with actually failing transfers and could do with a thorough review! Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-31fix info qtree indentionGerd Hoffmann
Without the patch bus properties are are not in line with the other properties: [ ... ] dev: fw_cfg, id "" ctl_iobase = 0x510 data_iobase = 0x511 irq 0 mmio ffffffffffffffff/0000000000000002 mmio ffffffffffffffff/0000000000000001 [ ... ] With the patch applied everything is lined up properly: [ ... ] dev: fw_cfg, id "" ctl_iobase = 0x510 data_iobase = 0x511 irq 0 mmio ffffffffffffffff/0000000000000002 mmio ffffffffffffffff/0000000000000001 [ ... ] Needed to make the autotest qtree parser happy. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-08-29scsi-disk: Fix typo (uint32 -> uint32_t)Stefan Weil
Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-29msix: make [un]use vectors on reset/load optionalMichael S. Tsirkin
The facility to use/unuse vectors dynamically is helpful for virtio but little else: everyone just seems to use vectors in their init function. Avoid clearing msix vector use info on reset and load. For virtio, clear it explicitly. This should fix regressions reported with ivshmem - though I didn't test this, I verified that virtio keeps working like it did. Tested-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-29reset PMBA and PMREGMISC PIIX4 registers.Gleb Natapov
The bug causes Windows + OVMF hang after reboot since OVMF checks PMREGMISC to see if IO space is enabled and skip configuration if it is. Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-29ivshmem: remove redundant ioeventfd configurationCam Macdonell
setup_ioeventfds() is unnecessary and actually causes a segfault when used ioeventfd=on is used on the command-line. Since ioeventfds are handled within the memory API, it can be removed. Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-29hw/arm_gic.c: Define .class_size in arm_gic_info TypeInfoPeter Maydell
Add the missing .class_size definition to the arm_gic_info TypeInfo. This fixes the memory corruption and possible segfault that otherwise results when the class struct is allocated at too small a size and the class init function writes off the end of it. Reported-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-28scsi: more fixes to properties for passthrough devicesPaolo Bonzini
Commit 0384783 (scsi-block: remove properties that are not relevant for passthrough, 2012-07-09) removed one property that should have been left there, "bootindex". It also did not touch scsi-generic, while it should have. Fix both problems. Reported-by: Alexandre DERUMIER <aderumier@odiso.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-08-28esp: support 24-bit DMAPaolo Bonzini
SeaBIOS will issue requests for more than 64k when loading a CD-ROM image into memory. Support the TCHI register from the AMD PCscsi spec. Acked-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-08-28megasas: Add 'hba_serial' propertyHannes Reinecke
Add a 'hba_serial' property to the megasas driver. Originally it would be using a pointer value which would break migration. Reported-by: Stefan Weil <sw@weilnetz.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-08-27Revert "fix some debug printf format strings"malc
This reverts commit 145c7c880ff520a9348cc2401ba291330b9606fe. Signed-off-by: malc <av1474@comtv.ru>
2012-08-27Revert "vga: add some optional CGA compatibility hacks"malc
This reverts commit 482f7bf86b43af9f6903c52726fedf82b28bf953. Signed-off-by: malc <av1474@comtv.ru>
2012-08-27Revert "i8259: add -no-spurious-interrupt-hack option"malc
This reverts commit f278d4947fff814dcde2ef2acad36d172ff8be35. Signed-off-by: malc <av1474@comtv.ru>
2012-08-24i8259: add -no-spurious-interrupt-hack optionMatthew Ogilvie
This patch provides a way to optionally suppress spurious interrupts, as a workaround for systems described below: Some old operating systems do not handle spurious interrupts well, and qemu tends to generate them significantly more often than real hardware. Examples: - Microport UNIX System V/386 v 2.1 (ca 1987) (The main problem I'm fixing: Without this patch, it panics sporadically when accessing the hard disk.) - AT&T UNIX System V/386 Release 4.0 Version 2.1a (ca 1991) See screenshot in "QEMU Official OS Support List": http://www.claunia.com/qemu/objectManager.php?sClass=application&iId=9 (I don't have this system to test.) - A report about OS/2 boot lockup from 2004 by Hampa Hug: http://lists.nongnu.org/archive/html/qemu-devel/2004-09/msg00367.html (My patch was partially inspired by his.) Also: http://lists.nongnu.org/archive/html/qemu-devel/2005-06/msg00243.html (I don't have this system to test.) Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net> Signed-off-by: malc <av1474@comtv.ru>
2012-08-24vga: add some optional CGA compatibility hacksMatthew Ogilvie
This patch adds some optional compatibility hacks (default disabled) to allow Microport UNIX to function under qemu. I've tried to structure it to be easy to add more hacks for other old CGA programs, if anyone ever needs them. Microport UNIX System V/386 v 2.1 (ca 1987) tries to program the CGA registers directly with neither the assistance of BIOS, nor with proper handling of EGA/VGA-only registers. Note that it didn't work on real VGA hardware, either (although in that case, the most obvious problems seemed to be out-of-range hsync and/or vsync signalling, rather than the issues in this patch). Eventually real MDA and/or CGA support might provide an alternative to this patch, although a hybrid approach like this patch might still be useful in marginal cases. Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net> Signed-off-by: malc <av1474@comtv.ru>
2012-08-24fix some debug printf format stringsMatthew Ogilvie
These are normally ifdefed out and don't matter. But if you enable them, they ought to be correct. Signed-off-by: Matthew Ogilvie <mmogilvi_qemu@miniinfo.net> Signed-off-by: malc <av1474@comtv.ru>
2012-08-23ivshmem: fix memory_region_del_eventfd assertion failurePaolo Bonzini
We do not register ioeventfds unless the IVSHMEM_IOEVENTFD feature is set. The same feature must be checked before releasing the eventfds. Regression introduced by commit 563027c (ivshmem: use EventNotifier and memory API, 2012-07-05). Reported-by: Cam Macdonnell <cam@cs.ualberta.ca> Tested-by: Cam Macdonnell <cam@cs.ualberta.ca> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-23qom: object_delete should unparent the object firstPaolo Bonzini
object_deinit is only called when the reference count goes to zero, and yet tries to do an object_unparent. Now, object_unparent either does nothing or it will decrease the reference count. Because we know the reference count is zero, the object_unparent call in object_deinit is useless. Instead, we need to disconnect the object from its parent just before we remove the last reference apart from the parent's. This happens in object_delete. Once we do this, all calls to object_unparent peppered through QEMU can go away. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22boards: add a 'none' machine type to all platformsAnthony Liguori
This allows any QEMU binary to be executed with: $QEMU_BINARY -M none -qmp stdio Without errors from missing options that are required by various boards. This also provides a mode that we can use in the future to construct machines entirely through QMP commands. Cc: Daniel Berrange <berrange@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori
* bonzini/scsi-next: virtio-scsi: add backwards-compatibility properties for 1.1 and earlier machines iscsi: fix races between task completion and abort iscsi: simplify iscsi_schedule_bh iscsi: move iscsi_schedule_bh and iscsi_readv_writev_bh_cb Revert "iscsi: Fix NULL dereferences / races between task completion and abort"
2012-08-22Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori
* kwolf/for-anthony: virtio-blk: hide VIRTIO_BLK_F_CONFIG_WCE from old machine types Documentation: Warn against qemu-img on active image vmdk: Read footer for streamOptimized images vmdk: Fix header structure Conflicts: hw/virtio-blk.c
2012-08-22Merge remote-tracking branch 'kraxel/usb.59' into stagingAnthony Liguori
* kraxel/usb.59: ehci: Fix setting of halt bit from usbcmd register updates ehci: fix Interrupt Threshold Control implementation usb: update uas product id usb: async control xfer fixup
2012-08-22pci: Tidy up PCI host bridgesAndreas Färber
Adopt the QOM parent field name and enforce QOM-style access via casts. Don't just typedef PCIHostState, either use it directly or embed it. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22pci: Derive PCI host bridges from TYPE_PCI_HOST_BRIDGEAndreas Färber
Use PCIHostState and PCI_HOST_BRIDGE() where appropriate. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22pci_host: Turn into SysBus-derived QOM typeAndreas Färber
The preceding commits fixed misuses of FROM_SYSBUS() that led people to add a bogus busdev field. For qdev the field order was less relevant but for QOM the PCIHostState field (including the SysBusDevice actually initialized with a value) must be placed first within the state struct. To facilitate accessing the PCIHostState fields, derive all PCI host bridges from TYPE_PCI_HOST_BRIDGE rather than TYPE_SYS_BUS_DEVICE. We can now access PCIHostState QOM-style, with PCI_HOST_BRIDGE() macro. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22unin_pci: QOM'ify UniNorth PCI host bridgesAndreas Färber
Introduce type constants and cast macros. Avoid accessing parent fields directly. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22spapr_pci: QOM'ify sPAPR PCI host bridgeAndreas Färber
Introduce type constant. Introduce cast macro to drop bogus busdev field that would've broken SYS_BUS_DEVICE(). Avoid accessing parent fields directly. Free the identifier phb as acronym for PCI_HOST_BRIDGE. Updated against conflicting merge from branch 'agraf/ppc-for-upstream' (0d16fdd732d1b211842fa96b7c90ddf9e6bde0e4), which removed busdev field differently, moved some code around and added new occurrences of 'phb'. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22prep_pci: QOM'ify Raven PCI host bridgeAndreas Färber
Introduce type constant and cast macro. Avoid accessing parent fields directly. Also add missing space and braces. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22ppce500_pci: QOM'ify e500 PCI host bridgeAndreas Färber
Introduce type constant and cast macro. Avoid accessing parent fields directly. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22ppc4xx_pci: QOM'ify ppc4xx PCI host bridgeAndreas Färber
Introduce type constant and cast macro. Avoid accessing its parent field directly. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22gt64xxx: QOM'ify GT64120 PCI host bridgeAndreas Färber
Introduce type constant. Introduce cast macro to drop dummy busdev field used with FROM_SYSBUS() macro that would've broken SYS_BUS_DEVICE(). Avoid accessing DeviceState indirectly through PCIHostState. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22grackle_pci: QOM'ify Grackle PCI host bridgeAndreas Färber
Introduce type constant. Introduce cast macro to drop dummy busdev field used with FROM_SYSBUS() that would've broken SYS_BUS_DEVICE(). Avoid accessing parent fields directly. Drop no-op reset function. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22dec_pci: QOM'ify DEC 21154 PCI-PCI bridgeAndreas Färber
Introduce type constant. Introduce cast macro and drop dummy busdev field used with FROM_SYSBUS() that would've broken SYS_BUS_DEVICE(). Avoid accessing parent fields directly. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22bonito: QOM'ify Bonito PCI host bridgeAndreas Färber
Introduce type constant. Avoid accessing DeviceState or SysBusDevice indirectly through PCIHostState field. Drop global state by passing BonitoState as opaque and adding the IRQs and a pointer to PCIBonitoState to its state. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22alpha_typhoon: QOM'ify Typhoon PCI host bridgeAndreas Färber
Introduce type constant and cast macro. Don't access DeviceState or PCIHostState indirectly through parent fields. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22pci: Make host bridge TypeInfos constAndreas Färber
During the QOM migration they were amended with further info but this is no longer the case. All static TypeInfos can be const these days. Signed-off-by: Andreas Färber <afaerber@suse.de> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-22virtio-blk: hide VIRTIO_BLK_F_CONFIG_WCE from old machine typesStefan Hajnoczi
QEMU has a policy of keeping a stable guest device ABI. When new guest device features are introduced they must not change hardware info seen by existing guests. This is important because operating systems or applications may "fingerprint" the hardware and refuse to run when the hardware changes. To always get the latest guest device ABI, run with x86 machine type "pc". This patch hides the new VIRTIO_BLK_F_CONFIG_WCE virtio feature bit from existing machine types. Only pc-1.2 and later will expose this feature by default. For more info on the VIRTIO_BLK_F_CONFIG_WCE feature bit, see: commit 13e3dce068773c971ff2f19d986378c55897c4a3 Author: Paolo Bonzini <pbonzini@redhat.com> Date: Thu Aug 9 16:07:19 2012 +0200 virtio-blk: support VIRTIO_BLK_F_CONFIG_WCE Also rename VIRTIO_BLK_F_WCACHE to VIRTIO_BLK_F_WCE for consistency with the spec. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Anthony Liguori <aliguori@us.ibm.com> reported: This broke qemu-test because it changed the pc-1.0 machine type: Setting guest RANDOM seed to 47167 *** Running tests *** Running test /tests/finger-print.sh... OK --- fingerprints/pc-1.0.x86_64 2011-12-18 13:08:40.000000000 -0600 +++ fingerprint.txt 2012-08-12 13:30:48.000000000 -0500 @@ -55,7 +55,7 @@ /sys/bus/pci/devices/0000:00:06.0/subsystem_device=0x0002 /sys/bus/pci/devices/0000:00:06.0/class=0x010000 /sys/bus/pci/devices/0000:00:06.0/revision=0x00 -/sys/bus/pci/devices/0000:00:06.0/virtio/host-features=0x710006d4 +/sys/bus/pci/devices/0000:00:06.0/virtio/host-features=0x71000ed4 /sys/class/dmi/id/bios_vendor=Bochs /sys/class/dmi/id/bios_date=01/01/2007 /sys/class/dmi/id/bios_version=Bochs Guest fingerprint changed for pc-1.0! Reported-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-21i82378: Remove bogus MMIO coalescingJan Kiszka
This MMIO area is an entry gate to legacy PC ISA devices, addressed via PIO over there. Quite a few of the PIO ports have side effects on access like starting/stopping timers that must be executed properly ordered /wrt the CPU. So we have to remove the coalescing mark. Acked-by: Hervé Poussineau <hpoussin@reactos.org> Acked-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-20virtio-scsi: add backwards-compatibility properties for 1.1 and earlier machinesPaolo Bonzini
Hotplug and parameter change are new in 1.2, disable them via compat properties for pc-1.1 and earlier. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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