Re: [Qemu-devel] [PATCH v7 0/8] virtio-blk refactoring.

[Anthony Liguori]

Breaks hotplug:

Running tests/device-add.sh
Using RANDOM seed 24922
Formatting '.tmp-28149/disk.img', fmt=qcow2 size=10737418240 encryption=off 
cluster_size=65536 lazy_refcounts=off 
/home/aliguori/build/qemu/x86_64-softmmu/qemu-system-x86_64 -kernel 
/usr/local/share/qemu-jeos/kernel-x86_64-pc -initrd 
.tmp-28149/initramfs-28149.img.gz -device isa-debug-exit -append console=ttyS0 
seed=24922 -nographic -enable-kvm -pidfile .tmp-28149/pidfile-28149.pid -qmp 
unix:.tmp-28149/qmpsock-28149.sock,server,nowait
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.4.0 (address@hidden) (gcc version 4.6.4 20120830 
(prerelease) (GCC) ) #2 SMP Mon Dec 3 19:40:41 CST 2012
[    0.000000] Command line: console=ttyS0 seed=24922
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
[    0.000000]  BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 0000000007ffe000 (usable)
[    0.000000]  BIOS-e820: 0000000007ffe000 - 0000000008000000 (reserved)
[    0.000000]  BIOS-e820: 00000000feffc000 - 00000000ff000000 (reserved)
[    0.000000]  BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved)
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] DMI 2.4 present.
[    0.000000] No AGP bridge found
[    0.000000] last_pfn = 0x7ffe max_arch_pfn = 0x400000000
[    0.000000] PAT not supported by CPU.
[    0.000000] found SMP MP-table at [ffff8800000fda40] fda40
[    0.000000] init_memory_mapping: 0000000000000000-0000000007ffe000
[    0.000000] RAMDISK: 07f58000 - 07ff0000
[    0.000000] ACPI: RSDP 00000000000fd8e0 00014 (v00 BOCHS )
[    0.000000] ACPI: RSDT 0000000007ffe4a0 00034 (v01 BOCHS  BXPCRSDT 00000001 
BXPC 00000001)
[    0.000000] ACPI: FACP 0000000007ffff80 00074 (v01 BOCHS  BXPCFACP 00000001 
BXPC 00000001)
[    0.000000] ACPI: DSDT 0000000007ffe4e0 011BC (v01   BXPC   BXDSDT 00000001 
INTL 20120913)
[    0.000000] ACPI: FACS 0000000007ffff40 00040
[    0.000000] ACPI: SSDT 0000000007fff800 00735 (v01 BOCHS  BXPCSSDT 00000001 
BXPC 00000001)
[    0.000000] ACPI: APIC 0000000007fff6e0 00078 (v01 BOCHS  BXPCAPIC 00000001 
BXPC 00000001)
[    0.000000] ACPI: HPET 0000000007fff6a0 00038 (v01 BOCHS  BXPCHPET 00000001 
BXPC 00000001)
[    0.000000] No NUMA configuration found
[    0.000000] Faking a node at 0000000000000000-0000000007ffe000
[    0.000000] Initmem setup node 0 0000000000000000-0000000007ffe000
[    0.000000]   NODE_DATA [0000000007ff7000 - 0000000007ffafff]
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000010 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   empty
[    0.000000] Movable zone start PFN for each node
[    0.000000] Early memory PFN ranges
[    0.000000]     0: 0x00000010 -> 0x0000009f
[    0.000000]     0: 0x00000100 -> 0x00007ffe
[    0.000000] ACPI: PM-Timer IO Port: 0xb008
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] SMP: Allowing 1 CPUs, 0 hotplug CPUs
[    0.000000] PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000f0000
[    0.000000] PM: Registered nosave memory: 00000000000f0000 - 0000000000100000
[    0.000000] Allocating PCI resources starting at 8000000 (gap: 
8000000:f6ffc000)
[    0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:1 
nr_node_ids:1
[    0.000000] PERCPU: Embedded 26 pages/cpu @ffff880007c00000 s77056 r8192 
d21248 u2097152
[    0.000000] Built 1 zonelists in Node order, mobility grouping on.  Total 
pages: 32136
[    0.000000] Policy zone: DMA32
[    0.000000] Kernel command line: console=ttyS0 seed=24922
[    0.000000] PID hash table entries: 512 (order: 0, 4096 bytes)
[    0.000000] Checking aperture...
[    0.000000] No AGP bridge found
[    0.000000] Memory: 113188k/131064k available (7532k kernel code, 452k 
absent, 17424k reserved, 5454k data, 584k init)
[    0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, 
Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:4352 nr_irqs:256 16
[    0.000000] Console: colour VGA+ 80x25
[    0.000000] console [ttyS0] enabled
[    0.000000] Fast TSC calibration failed
[    0.000000] TSC: Unable to calibrate against PIT
[    0.000000] TSC: using HPET reference calibration
[    0.000000] Detected 2933.365 MHz processor.
[    0.009042] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 5866.73 BogoMIPS (lpj=2933365)
[    0.011002] pid_max: default: 32768 minimum: 301
[    0.012026] Security Framework initialized
[    0.012828] SELinux:  Initializing.
[    0.013032] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.014035] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
[    0.015018] Mount-cache hash table entries: 256
[    0.016139] Initializing cgroup subsys cpuacct
[    0.017002] Initializing cgroup subsys freezer
[    0.018057] mce: CPU supports 10 MCE banks
[    0.019201] SMP alternatives: switching to UP code
[    0.028404] Freeing SMP alternatives: 24k freed
[    0.029013] ACPI: Core revision 20120320
[    0.031786] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.042131] CPU0: Intel QEMU Virtual CPU version 1.4.50 stepping 03
[    0.043996] Performance Events: unsupported p6 CPU model 2 no PMU driver, 
software events only.
[    0.044793] Brought up 1 CPUs
[    0.044999] Total of 1 processors activated (5866.73 BogoMIPS).
[    0.047225] kworker/u:0 used greatest stack depth: 6368 bytes left
[    0.048075] RTC time:  6:19:30, date: 03/15/13
[    0.049036] NET: Registered protocol family 16
[    0.050311] ACPI: bus type pci registered
[    0.051057] kworker/u:0 used greatest stack depth: 6304 bytes left
[    0.052082] PCI: Using configuration type 1 for base access
[    0.054299] kworker/u:0 used greatest stack depth: 5968 bytes left
[    0.055261] kworker/u:0 used greatest stack depth: 5536 bytes left
[    0.062136] bio: create slab <bio-0> at 0
[    0.063144] ACPI: Added _OSI(Module Device)
[    0.063999] ACPI: Added _OSI(Processor Device)
[    0.064866] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.064997] ACPI: Added _OSI(Processor Aggregator Device)
[    0.068246] ACPI: Interpreter enabled
[    0.068997] ACPI: (supports S0 S3 S4 S5)
[    0.069864] ACPI: Using IOAPIC for interrupt routing
[    0.073684] ACPI: No dock devices found.
[    0.074008] PCI: Using host bridge windows from ACPI; if necessary, use 
"pci=nocrs" and report a bug
[    0.076080] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.077100] pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cf7]
[    0.079018] pci_root PNP0A03:00: host bridge window [io  0x0d00-0xffff]
[    0.079996] pci_root PNP0A03:00: host bridge window [mem 
0x000a0000-0x000bffff]
[    0.081996] pci_root PNP0A03:00: host bridge window [mem 
0x80000000-0xfebfffff]
[    0.083105] PCI host bridge to bus 0000:00
[    0.084002] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
[    0.084999] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
[    0.087016] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff]
[    0.088006] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff]
[    0.094412] pci 0000:00:01.3: quirk: [io  0xb000-0xb03f] claimed by PIIX4 
ACPI
[    0.096020] pci 0000:00:01.3: quirk: [io  0xb100-0xb10f] claimed by PIIX4 SMB
[    0.112260]  pci0000:00: Unable to request _OSC control (_OSC support mask: 
0x1e)
[    0.115059] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[    0.116307] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[    0.117337] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[    0.118369] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[    0.120287] vgaarb: device added: 
PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.121000] vgaarb: loaded
[    0.121990] vgaarb: bridge control possible 0000:00:02.0
[    0.123150] SCSI subsystem initialized
[    0.124212] usbcore: registered new interface driver usbfs
[    0.125034] usbcore: registered new interface driver hub
[    0.127022] usbcore: registered new device driver usb
[    0.128181] Advanced Linux Sound Architecture Driver Version 1.0.25.
[    0.129002] PCI: Using ACPI for IRQ routing
[    0.130381] cfg80211: Calling CRDA to update world regulatory domain
[    0.132116] NetLabel: Initializing
[    0.133004] NetLabel:  domain hash size = 128
[    0.133871] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.134012] NetLabel:  unlabeled traffic allowed by default
[    0.136172] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[    0.137015] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.138221] hpet0: 3 comparators, 64-bit 100.000000 MHz counter
[    0.145047] Switching to clocksource hpet
[    0.147997] pnp: PnP ACPI init
[    0.148713] ACPI: bus type pnp registered
[    0.150598] pnp: PnP ACPI: found 8 devices
[    0.151490] ACPI: ACPI bus type pnp unregistered
[    0.160313] NET: Registered protocol family 2
[    0.161401] IP route cache hash table entries: 1024 (order: 1, 8192 bytes)
[    0.162941] TCP established hash table entries: 4096 (order: 4, 65536 bytes)
[    0.164388] TCP bind hash table entries: 4096 (order: 4, 65536 bytes)
[    0.165709] TCP: Hash tables configured (established 4096 bind 4096)
[    0.167036] TCP: reno registered
[    0.167686] UDP hash table entries: 128 (order: 0, 4096 bytes)
[    0.168904] UDP-Lite hash table entries: 128 (order: 0, 4096 bytes)
[    0.170301] NET: Registered protocol family 1
[    0.171317] RPC: Registered named UNIX socket transport module.
[    0.172537] RPC: Registered udp transport module.
[    0.173504] RPC: Registered tcp transport module.
[    0.174477] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.175832] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
[    0.177103] pci 0000:00:01.0: PIIX3: Enabling Passive Release
[    0.178301] pci 0000:00:01.0: Activating ISA DMA hang workarounds
[    0.179685] Trying to unpack rootfs image as initramfs...
[    0.188701] Freeing initrd memory: 608k freed
[    0.190487] microcode: CPU0 sig=0x623, pf=0x0, revision=0x1
[    0.191743] microcode: Microcode Update Driver: v2.00 <address@hidden>, 
Peter Oruba
[    0.193851] audit: initializing netlink socket (disabled)
[    0.195041] type=2000 audit(1363328370.194:1): initialized
[    0.212495] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.217219] VFS: Disk quotas dquot_6.5.2
[    0.218158] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.220139] NFS: Registering the id_resolver key type
[    0.221442] msgmni has been set to 222
[    0.222648] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 
253)
[    0.224167] io scheduler noop registered
[    0.224945] io scheduler deadline registered
[    0.225939] io scheduler cfq registered (default)
[    0.227137] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    0.228291] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.229802] acpiphp: Slot [3] registered
[    0.230703] acpiphp: Slot [4] registered
[    0.231574] acpiphp: Slot [5] registered
[    0.232448] acpiphp: Slot [6] registered
[    0.233302] acpiphp: Slot [7] registered
[    0.234159] acpiphp: Slot [8] registered
[    0.234991] acpiphp: Slot [9] registered
[    0.235860] acpiphp: Slot [10] registered
[    0.236758] acpiphp: Slot [11] registered
[    0.237648] acpiphp: Slot [12] registered
[    0.238522] acpiphp: Slot [13] registered
[    0.239440] acpiphp: Slot [14] registered
[    0.240386] acpiphp: Slot [15] registered
[    0.241321] acpiphp: Slot [16] registered
[    0.242236] acpiphp: Slot [17] registered
[    0.243163] acpiphp: Slot [18] registered
[    0.244069] acpiphp: Slot [19] registered
[    0.244913] acpiphp: Slot [20] registered
[    0.245799] acpiphp: Slot [21] registered
[    0.246703] acpiphp: Slot [22] registered
[    0.247596] acpiphp: Slot [23] registered
[    0.248476] acpiphp: Slot [24] registered
[    0.249414] acpiphp: Slot [25] registered
[    0.250307] acpiphp: Slot [26] registered
[    0.251187] acpiphp: Slot [27] registered
[    0.252064] acpiphp: Slot [28] registered
[    0.252929] acpiphp: Slot [29] registered
[    0.253825] acpiphp: Slot [30] registered
[    0.254730] acpiphp: Slot [31] registered
[    0.255811] input: Power Button as 
/devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[    0.257308] ACPI: Power Button [PWRF]
[    0.259627] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
�[    0.526468] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[    0.550220] 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[    0.551852] Non-volatile memory driver v1.3
[    0.552741] Linux agpgart interface v0.103
[    0.553794] [drm] Initialized drm 1.1.0 20060810
[    0.554764] [drm:i915_init] *ERROR* drm/i915 can't work without intel_agp 
module!
[    0.557955] brd: module loaded
[    0.560661] loop: module loaded
[    0.561549] DC390: clustering now enabled by default. If you get problems 
load
[    0.563075]        with "disable_clustering=1" and report to maintainers
[    0.564550] megasas: 00.00.06.14-rc1 Fri. Jan. 6 17:00:00 PDT 2012
[    0.567136] scsi0 : ata_piix
[    0.567826] scsi1 : ata_piix
[    0.568542] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14
[    0.571991] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15
[    0.574573] pcnet32: pcnet32.c:v1.35 21.Apr.2008 address@hidden
[    0.576116] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI
[    0.577393] e100: Copyright(c) 1999-2006 Intel Corporation
[    0.578596] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[    0.580074] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    0.581406] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
[    0.894611] ata2.00: ATAPI: QEMU DVD-ROM, 1.4.50, max UDMA/100
[    0.896172] ata2.00: configured for MWDMA2
[    0.897425] scsi 1:0:0:0: CD-ROM            QEMU     QEMU DVD-ROM     1.4. 
PQ: 0 ANSI: 5
[    0.899749] sr0: scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[    0.900848] cdrom: Uniform CD-ROM driver Revision: 3.20
[    0.902363] sr 1:0:0:0: Attached scsi generic sg0 type 5
[    0.921771] e1000 0000:00:03.0: eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56
[    0.924243] e1000 0000:00:03.0: eth0: Intel(R) PRO/1000 Network Connection
[    0.925660] sky2: driver version 1.30
[    0.926693] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.928087] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    0.929371] uhci_hcd: USB Universal Host Controller Interface driver
[    0.930690] usbcore: registered new interface driver usblp
[    0.931810] Initializing USB Mass Storage driver...
[    0.932819] usbcore: registered new interface driver usb-storage
[    0.934044] USB Mass Storage support registered.
[    0.934965] usbcore: registered new interface driver libusual
[    0.936220] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 
0x60,0x64 irq 1,12
[    0.938361] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.939374] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.940591] mousedev: PS/2 mouse device common for all mice
[    0.942105] input: AT Translated Set 2 keyboard as 
/devices/platform/i8042/serio0/input/input1
[    0.943908] rtc_cmos 00:01: RTC can wake from S4
[    0.947061] rtc_cmos 00:01: rtc core: registered rtc_cmos as rtc0
[    0.948402] rtc0: alarms up to one day, 114 bytes nvram, hpet irqs
[    0.950186] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: 
address@hidden
[    0.951939] cpuidle: using governor ladder
[    0.952765] cpuidle: using governor menu
[    0.953552] EFI Variables Facility v0.08 2004-May-17
[    0.955506] usbcore: registered new interface driver usbhid
[    0.956660] usbhid: USB HID core driver
[    0.957927] Netfilter messages via NETLINK v0.30.
[    0.959973] nf_conntrack version 0.5.0 (889 buckets, 3556 max)
[    0.961288] ctnetlink v0.93: registering with nfnetlink.
[    0.962486] ip_tables: (C) 2000-2006 Netfilter Core Team
[    0.963590] TCP: cubic registered
[    0.964353] Initializing XFRM netlink socket
[    0.965435] NET: Registered protocol family 10
[    0.966549] ip6_tables: (C) 2000-2006 Netfilter Core Team
[    0.967655] IPv6 over IPv4 tunneling driver
[    0.968700] NET: Registered protocol family 17
[    0.969628] Registering the dns_resolver key type
[    0.970760] registered taskstats version 1
[    0.971722]   Magic number: 5:14:317
[    0.972477] tty tty42: hash matches
[    0.973210] console [netcon0] enabled
[    0.973911] netconsole: network logging started
[    0.974870] ALSA device list:
[    0.975486]   No soundcards found.
[    0.978762] Freeing unused kernel memory: 584k freed
[    0.980040] Write protecting the kernel read-only data: 12288k
[    0.982620] Freeing unused kernel memory: 640k freed
[    0.987540] Freeing unused kernel memory: 1724k freed
Setting guest RANDOM seed to 24922
*** Running tests ***
/tests/device-add.sh
Running test /tests/device-add.sh...
** waiting for hotplug **
qemu-system-x86_64: /home/aliguori/git/qemu/hw/qdev.c:84: bus_add_child: 
Assertion `bus->allow_hotplug' failed.
Traceback (most recent call last):
  File "../..//QMP/qmp", line 126, in <module>
    sys.exit(main(sys.argv[1:]))
  File "../..//QMP/qmp", line 122, in main
    rsp = do_command(srv, command, **arguments)
  File "../..//QMP/qmp", line 81, in do_command
    if rsp.has_key('error'):
AttributeError: 'NoneType' object has no attribute 'has_key'
./qemu-test: line 99: 28224 Aborted                 "$@"
** waiting for guest to see device **

Regards,

Anthony Liguori

address@hidden writes:

> From: KONRAD Frederic <address@hidden>
>
> This is the next part of virtio-refactoring.
>
> Basically it creates virtio-blk device which extends virtio-device.
> Then a virtio-blk can be connected on a virtio-bus.
> virtio-blk-pci, virtio-blk-s390x, virtio-blk-ccw are created too, they extend
> respectively virtio-pci, virtio-s390-device, virtio-ccw-device and have a
> virtio-blk.
>
> It is on top of "virtio: make virtio device's structures public" (V4) I posted
> before, but you can checkout my branch here:
>
> git://project.greensocs.com/qemu-virtio.git virtio-blk-v7
>
> I made basic tests (with linux guests) on:
>  * qemu-system-i386
>  * qemu-system-s390x
>
> Cornelia made virtio-ccw test, and Stefan tried dataplane.
>
> Changes v6 -> v7:
>     * Fix the DEFINE_VIRTIO_BLK_PROPERTIES macro issue spotted by Peter.
>
> Thanks.
>
> Fred
>
> KONRAD Frederic (8):
>   virtio-blk: don't use pointer for configuration.
>   virtio-blk: add the virtio-blk device.
>   virtio-blk-pci: switch to new API.
>   virtio-blk-s390: switch to the new API.
>   virtio-blk-ccw switch to new API.
>   virtio-blk: cleanup: init and exit functions.
>   virtio-blk: cleanup: QOM cast
>   virtio-blk: cleanup: remove qdev field.
>
>  hw/s390x/s390-virtio-bus.c |  30 +++++++----
>  hw/s390x/s390-virtio-bus.h |  13 ++++-
>  hw/s390x/virtio-ccw.c      |  37 ++++++++-----
>  hw/s390x/virtio-ccw.h      |  14 ++++-
>  hw/virtio-blk.c            | 131 
> +++++++++++++++++++++++++++++----------------
>  hw/virtio-blk.h            |  26 +++++++--
>  hw/virtio-pci.c            | 127 ++++++++++++++++++++-----------------------
>  hw/virtio-pci.h            |  15 +++++-
>  hw/virtio.h                |   2 -
>  9 files changed, 246 insertions(+), 149 deletions(-)
>
> -- 
> 1.7.11.7