ChangeLog/2.9
System emulation
Incompatible changes
Future incompatible changes
ARM
KVM
MIPS
PowerPC
pSeries
s390
SH
SPARC
TileGX
Tricore
x86
Xen
Device emulation and assignment
ACPI
Block devices
Network devices
SCSI
PCI/PCIe
USB
VFIO
virtio
Xen
fw_cfg
The `fw_cfg_io` and `fw_cfg_mem` devices now have more slots for files; the `FW_CFG_FILE_SLOTS` constant has been replaced with the (internal only) `x-file-slots` property. The property can be further raised in future machine types if absolutely necessary.