XL vs Xend Feature Comparison

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Revision as of 15:13, 22 December 2014 by Lars.kurth (talk | contribs)
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The following compares the featureset of the xend toolstack vs the xl toolstack as of Xen 4.2.

xm / xend xl
Guest Types
PV guests ✓ ✓
HVM guests ✓ ✓
Guest lifecycle operations
Create, shutdown, reboot ✓ ✓
Pause, unpause ✓ ✓
List, rename ✓ ✓
Live migration and save/restore ✓ ✓
Guest device support
Network devices (both para-virtualised and emulated) ✓ ✓
Block devices (both para-virtualised and emulated) ✓ ✓
Sharing storage across DomU's via w! in virtual machines configuration files ✓ ✗
Virtual framebuffer, keyboard and mouse (both para-virtualised and emulated) ✓ (includes SDL & VNC support) ✓ (includes SDL, VNC & SPICE support)
SPICE framebuffer/console support ✗ ✓
QXL graphics device support for SPICE ✗ ✗
PV console devices ✗ ✓
PCI device passthrough ✓ ✓
VGA graphics device (GPU) passthrough ✓ ✓
SCSI LUN/Host passthrough (PVSCSI) ✓ ✗
USB 1.1 device passthrough via config file (using qemu xen traditional) ✓ ✓
USB 1.1 device passthrough via config file (using upstream qemu) ✓ ✓
USB 1.1 device passthrough via hotplug (using qemu xen traditional) ✓ ✗
USB 1.1 device passthrough via hotplug (using upstream qemu) ?? ✗
USB 2.0 device passthrough (PVUSB) ✓ ✗
Device Model Support
Qemu Xen Traditional Device Model ✓ ✓
Upstream Qemu Device Model ✗ ✓
Stub domain Qemu Xen Traditional Device Model ✓ ✓
Stub domain Upstream Qemu Device Model ✗ ✗
 
CPU pools ✓ (undocumented in XEND man pages) ✓
Cpupool-per-NUMA node. ✗ ✓
Control of CPU scheduler parameters ✓ ✓
TMEM ✓ ✓
XSM/Flash policy control ✓ ✓
Control of CPUID features exposed to guests. ✓ ✓ (syntax greatly improved)
 
Managed Domains ✓ ✗ [ 1 ]
Python code in configuration files ✓ ✗ [ 1 ]

[ 1 ] Feature is explicitly not supported by xl, see XL Anti-Features

Also See:

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