Log Message:
Update qemu to 2.1.2.  Changes:

9a72433: slirp: udp: fix NULL pointer dereference because of uninitialized \ 
socket (Petr Matousek)
00dd2b2: pc: leave more space for BIOS allocations (Michael S. Tsirkin)
80f4d02: Revert "virtio: don't call device on !vm_running" (Michael S. \ 
Tsirkin)
074e347: virtio-net: drop assert on vm stop (Michael S. Tsirkin)
9e8d994: Revert "rng-egd: remove redundant free" (Eduardo Habkost)
a56b9cf: hw/machine: Free old values of string properties (Eduardo Habkost)
0717855: Revert "spapr_pci: map the MSI window in each PHB" (Greg Kurz)
82d80e1: target-i386: Support migratable=no properly (Eduardo Habkost)
5dd076a: exec: Save CPUState::exception_index field (Pavel Dovgaluk)
257e9cf: pty: Fix byte loss bug when connecting to pty (Sebastian Tanase)
1aa87d3: spice: make sure we don't overflow ssd->buf (Gerd Hoffmann)
7fe5418: vbe: rework sanity checks (Gerd Hoffmann)
c5042f0: vbe: make bochs dispi interface return the correct memory size with qxl \ 
(Gerd Hoffmann)
cf29a88: virtio-net: purge outstanding packets when starting vhost (Michael S. \ 
Tsirkin)
08743db: net: complete all queued packets on VM stop (Michael S. Tsirkin)
d9c06c0: net: invoke callback when purging queue (Michael S. Tsirkin)
f321710: virtio: don't call device on !vm_running (Michael S. Tsirkin)
ec48bfd: net: Forbid dealing with packets when VM is not running (zhanghailiang)
eb36f79: acpi-build: Set FORCE_APIC_CLUSTER_MODEL bit for FADT flags (zhanghailiang)
34d41c1: vhost-scsi: init backend features earlier (Michael S. Tsirkin)
6f8d05a: vhost_net: init acked_features to backend_features (Jason Wang)
5e83dae: vhost_net: start/stop guest notifiers properly (Jason Wang)
ff34ca0: pci: avoid losing config updates to MSI/MSIX cap regs (Knut Omang)
e685d2a: virtio-net: don't run bh on vm stopped (Michael S. Tsirkin)
67cfda8: qxl-render: add more sanity checks (Gerd Hoffmann)
4fd144f: target-arm: Correct Cortex-A57 ISAR5 and AA64ISAR0 ID register values \ 
(Peter Maydell)
ea774b8: target-arm: Fix regression that disabled VFP for ARMv5 CPUs (Peter Maydell)
3e8966d: x86: Clear MTRRs on vCPU reset (Alex Williamson)
ba8576f: x86: kvm: Add MTRR support for kvm_get|put_msrs() (Alex Williamson)
07f8c97: x86: Use common variable range MTRR counts (Alex Williamson)
72c9c9a: target-i386: Don't forbid NX bit on PAE PDEs and PTEs (William Grant)
3d8cc86: vl: process -object after other backend options (Paolo Bonzini)
0824ca6: spapr_pci: map the MSI window in each PHB (Greg Kurz)
feb6334: thread-pool: avoid deadlock in nested aio_poll() calls (Stefan Hajnoczi)
75ada6b: thread-pool: avoid per-thread-pool EventNotifier (Stefan Hajnoczi)
be3af75: pc: reserve more memory for ACPI for new machine types (Michael S. Tsirkin)
bfe3e6f: pcihp: fix possible array out of bounds (Gonglei)
cd4acff: hostmem: set MPOL_MF_MOVE (Michael S. Tsirkin)
4b59161: vmxnet3: Pad short frames to minimum size (60 bytes) (Ben Draper)
fab7560: blkdebug: Delete BH in bdrv_aio_cancel (Fam Zheng)
16c92cd: qemu-iotests: add test case 101 for short file I/O (Stefan Hajnoczi)
dea6efe: raw-posix: fix O_DIRECT short reads (Stefan Hajnoczi)
8c4edd7: block/iscsi: fix memory corruption on iscsi resize (Peter Lieven)
504e2a7: arm/virt: Use PSCI v0.2 function IDs in the DT when KVM uses PSCI v0.2 \ 
(Christoffer Dall)
2f6d5e1: target-arm: Rename QEMU PSCI v0.1 definitions (Christoffer Dall)
20463dc: target-arm: Fix return address for A64 BRK instructions (Peter Maydell)
2a575c4: virtio-blk: fix reference a pointer which might be freed (zhanghailiang)
1ad9dce: acpi: align RSDP (Michael S. Tsirkin)
ba1bc81: numa: show hex number in error message for consistency and prefix them \ 
with 0x (Hu Tao)
948574e: pc-dimm: fix up error message (Michael S. Tsirkin)
044af98: pc-dimm: validate node property (Hu Tao)
7c68c54: hw:i386: typo fix: MEMORY_HOPTLUG_DEVICE -> MEMORY_HOTPLUG_DEVICE \ 
(Hu Tao)
bd47406: ide: only constrain read/write requests to drive size, not other types \ 
(Michael Tokarev)
e22d5dc: l2tpv3 (configure): it is linux-specific (Michael Tokarev)
dfd4808: vfio: Fix MSI-X vector expansion (Alex Williamson)
5f26e63: qdev-monitor: include QOM properties in -device FOO, help output \ 
(Stefan Hajnoczi)
42f7a13: qmp: hide "hotplugged" device property from \ 
device-list-properties (Stefan Hajnoczi)