ChangeLog/1.7

System emulation

The HDA device emulation now includes a mixer by default. Previously this had to be enabled with the configure argument "--enable-mixemu" when building QEMU.

Support for the LSI 53C810 SCSI HBA, which unlike the 895A is supported on some very old Windows NT versions.

VFIO now supports setting CPU affinity on MSI interrupts.
VFIO can now reset assigned devices much more reliably using either PCI function-level reset (FLR), power management, or a reset (done by the kernel) of the parent bridge.
Several improvements to the reliability of using option ROMs for devices that are assigned with VFIO.

The "nmi" command will trigger a crash dump from kdump, using a RESTART interrupt.
The SCLP line-mode console ("operating system messages") can be accessed with "-device sclplmconsole".

Subcommands (like "info block") can now autocomplete their options.
Help for a single subcommand can be printed with a monitor command such as "help info block".
New commands "blockdev-snapshot-internal-sync", "blockdev-snapshot-delete-internal-sync" improve support for internal qcow2 snapshot.
New command "blockdev-add" provides a QMP interface for block device hotplug.

The VMDK driver supports files produced by VMWare ESX.
The qcow2 driver can detect some cases of corruption, and will prevent writing to a corrupted image.
The throttling algorithm has been rewritten; the new code is more robust, and supports configuration of separate limits for sustained I/O vs. I/O bursts
The metadata of a file (where each sector of the guest image is stored in the file on the host) can be dumped in human-readable or JSON format using a new command "qemu-img map"

The "filesystem freeze/thaw" commands are now supported on Windows too, where they will invoke the native Volume Shadow Copy Service (VSS).

For targets that have no embedded disassembler, QEMU will now produce hexadecimal dumps instead of just emitting an error when a disassembly is requested. The enclosed script disas-objdump.pl can be used, together with an external objdump program, to convert the dump to a readable disassembly.