ChangeLog/2.1

System emulation

ARM

• Improvements to Allwinner SoC emulation.
• Much more complete support for AArch64.

Microblaze

• Support for u-boot initrd images.

x86

• QEMU now presents version 0x14 for the emulated local APIC, for consistency with KVM and improved compatibility with Mac OS X.
• More faithful SMBus controller emulation.
• More faithful CPL (current privilege level) emulation in TCG mode.

Device emulation

USB

• Support for file-sharing via MTP emulation

GUI

• Many bug fixes for the GTK+ interface.
• Mouse wheel support for the SDL 2.0 interface.

Migration

• Many fixes to XBZRLE.

Block devices and tools

• Support for compressed (streamOptimized) VMDK images as conversion targets.

TCG

• Improvement to AArch64, Alpha, ia64 and SPARC backends

User-mode emulation

• Support for opening /proc/self/exe.