ChangeLog/1.4: Difference between revisions

Revision as of 09:13, 24 January 2013

System emulation

Device emulation

Device assignment

USB

ARM

MIPS

PowerPC

Pseries: NVRAM support for improved guest installation experience
e500: Linux guests don't use use SWTLB anymore, freeing memory for real applications
e500: MSI support
e500: Allow for up to 31 PCI devices with -M ppce500
e500: Support idle hcall when running KVM on e500mc or above
e500: Emulate the EPR facility (e500mc and above)

S390

x86

testdev?
xlevel argument for -cpu option, currently silently fix-ups it's value if it's less than 0x80000000. Fix-up will be removed in future QEMU versions and users are expected to provide valid xlevel value or QEMU will fail to start.

KVM

Xen

persistent grants support implemented in xen_disk (up to 450% speed in improvement with 15 guests!!);
safer and correcter flush operation (BLKIF_OP_FLUSH_DISKCACHE) introduced in xen_disk;
multiple secondary PV consoles support in xen_console;
many bug fixes.

QMP

Network devices

SLIRP

Block devices

Live Migration

Move migration from a timer to a thread. Migration was blocking the iothread for too long. Latency of the other threads have improved, and measurements/throughput/latency of migration has also improved.

User-mode emulation

Fix ppc guest signal handling
Fix MIPS target

Guest agent

Host support

@@ Line 23: / Line 23: @@
 === x86 ===
 * testdev?
+* xlevel argument for -cpu option, currently silently fix-ups it's value if it's less than 0x80000000. Fix-up will be removed in future QEMU versions and users are expected to provide valid xlevel value or QEMU will fail to start.
 ==== KVM ====