Update to 2.2.1

Changelog:

2001e19: Update version for v2.2.1 release (Michael Roth)
c70221d: vpc: Fix size in fixed image creation (Kevin Wolf)
07db685: coroutine: Fix use after free with qemu_coroutine_yield() (Kevin Wolf)
c4ca8af: acpi: update generated hex files (Michael Roth)
16765a5: acpi-test: update expected DSDT (Michael Roth)
dab0efc: pc: acpi: fix WindowsXP BSOD when memory hotplug is enabled (Igor
Mammedov)
6c699aa: xen-hvm: increase maxmem before calling xc_domain_populate_physmap
(Stefano Stabellini)
a958b9b: linux-user: Check for cpu_init() errors (Eduardo Habkost)
4ec1b9b: qdev: Avoid type assertion in qdev_build_hotpluggable_device_list()
(Jun Li)
3e04f97: kvm/apic: fix 2.2->2.1 migration (Paolo Bonzini)
00fd890: target-mips: fix broken snapshotting (Leon Alrae)
3d1cd59: update ipxe from 69313ed to 35c5379 (Gerd Hoffmann)
a97f9a7: exec: change default exception_index value for migration to -1 (Paolo
Bonzini)
987aba5: qtest: Fix deadloop by running main loop AIO context's timers (Fam
Zheng)
7d389a2: block/iscsi: fix uninitialized variable (Peter Wu)
2a020d2: fix mc146818rtc wrong subsection name to avoid
vmstate_subsection_load() fail (Zhang Haoyu)
6833856: libcacard: stop linking against every single 3rd party library (Daniel
P. Berrange)
a9eb2b6: qemu-thread: fix qemu_event without futexes (Paolo Bonzini)
4d49de6: vfio-pci: Fix missing unparent of dynamically allocated MemoryRegion
(Alex Williamson)
3750d25: target-arm/translate-a64: Fix wrong mmu_idx usage for LDT/STT (Peter
Maydell)
4ac8b01: hw/input/hid.c Fix capslock hid code (Dinar Valeev)
e60fb7a: sb16: fix interrupt acknowledgement (Paolo Bonzini)
451b9e2: virtio: fix feature bit checks (Cornelia Huck)
0d09315: vt82c686: avoid out-of-bounds read (Paolo Bonzini)
8d1fdb1: target-i386: fix movntsd on big-endian hosts (Paolo Bonzini)
b0a231a: scsi: fix cancellation when I/O was completed but DMA was not. (Paolo
Bonzini)
09e2753: linux-user: Fix broken m68k signal handling on 64 bit hosts (Peter
Maydell)
49725cd: pckbd: set bits 2-3-6-7 of the output port by default (Paolo Bonzini)
fdb2ed4: serial: refine serial_thr_ipending_needed (Paolo Bonzini)
e54bcad: serial: reset thri_pending on IER writes with THRI=0 (Paolo Bonzini)
e1ce0c3: vl.c: fix regression when reading machine type from config file
(Marcel Apfelbaum)
cb3360d: PPC: Fix crash on spapr_tce_table_finalize() (David Gibson)
f738ade: atomic: fix position of volatile qualifier (Paolo Bonzini)
83dbd88: migration/block: fix pending() return value (Vladimir
Sementsov-Ogievskiy)
718ab31: target-xtensa: test cross-page opcode (Max Filippov)
27ad3df: target-xtensa: fix translation for opcodes crossing page boundary (Max
Filippov)
6569578: audio: Don't free hw resources until after hw backend is stopped
(Peter Maydell)
51d703f: linuxboot: fix loading old kernels (Paolo Bonzini)
ebd2bd2: block: Don't probe for unknown backing file format (Kevin Wolf)
9f8da03: qcow2.py: Add required padding for header extensions (Kevin Wolf)
63a3acd: qcow2: Fix header extension size check (Kevin Wolf)
9fc6075: block migration: fix return value (Gary R Hook)
6950b92: block/raw-posix: Fix ret in raw_open_common() (Max Reitz)
9b3f3d6: qcow2: Respect bdrv_truncate() error (Max Reitz)
6f45cda: qcow2: Flushing the caches in qcow2_close may fail (Max Reitz)
1e85e69: qcow2: Prevent numerical overflow (Max Reitz)
ff15187: iotests: Add test for unsupported image creation (Max Reitz)
0a0a984: iotests: Only kill NBD server if it runs (Max Reitz)
b15bfd0: qemu-img: Check create_opts before image amendment (Max Reitz)
10be14e: qemu-img: Check create_opts before image creation (Max Reitz)
6065d54: block: Check create_opts before image creation (Max Reitz)
0fc9a06: block/nfs: Add create_opts (Max Reitz)
1961d1c: block/vvfat: qcow driver may not be found (Max Reitz)
e81703b: block: Omit bdrv_find_format for essential drivers (Max Reitz)
7e213f8: block: Make essential BlockDriver objects public (Max Reitz)


(ryoon)