ChangeLog/1.0: Difference between revisions
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== PPC == | == PPC == | ||
== pSeries == | |||
* sPAPR VIO devices can now be created with -device. | * sPAPR VIO devices can now be created with -device. | ||
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=== Xen === | === Xen === | ||
== Xtensa == | |||
* QEMU now supports DC232b and FSF xtensa CPU cores. | |||
* QEMU now supports sim (similar to Tensilica ISS) and LX60/LX110/LX200 machines. | |||
Revision as of 11:50, 2 November 2011
General
- i386-softmmu is no longer named qemu but instead referred to as qemu-system-i386 for better consistency with other targets. A new tool is likely to be introduced that uses the qemu name so distributions are advised to not undo this change.
- A new monitor command "info mtree" can show the hierarchy of memory regions in the guest.
Block devices (disks)
- QEMU now supports I/O latency accounting in the monitor command "info blockstats".
- Errors are now tracked per device and are shown by the monitor command "info block".
- All image formats now support asynchronous operation. IDE and SCSI emulation will use this feature, while other devices (notably floppy and SD) will not.
IDE/ATAPI
- A large number of bugs were fixed regarding CD media change and tray locking.
SCSI
- Memory management errors could crash QEMU when scsi-disk encountered I/O errors. Many instances of this problem were fixed.
- The accuracy of error handling for SCSI emulation has been greatly improved.
- SCSI devices can now be addressed by channel, target (id) and LUN. Not all emulated HBAs will support this feature (in particular, the LSI controller will not).
- Block device pass through is now supported through a new scsi-block device. The scsi-block device works with block devices (like /dev/sda or /dev/sr0) rather than /dev/sgN devices, and is more efficient because it does not consume arbitrary amounts of memory when the guest does large data transfers.
- SCSI CD-ROMs now report media changed events.
- SCSI CD-ROMs now support DVD images.
- Bugfixes for IDE media change also apply to SCSI.
- SCSI devices now report a unit attention condition when the system is started or reset. This may cause problems with old firmware versions.
USB
Spice
User-mode networking (SLIRP)
- SLIRP can handle process ARP replies and gratuitous ARP requests from the guest.
virtio-9p
ARM
- QEMU now supports VFPv4 fused multiply-accumulate instructions.
- QEMU now supports UDIV and SDIV in ARM mode.
PPC
pSeries
- sPAPR VIO devices can now be created with -device.
SPARC
x86
KVM
Xen
Xtensa
- QEMU now supports DC232b and FSF xtensa CPU cores.
- QEMU now supports sim (similar to Tensilica ISS) and LX60/LX110/LX200 machines.