Resource: LCA13 Name: Citrix Keynote Date: 05-03-2013 Speaker: Lars Kurth

1. Mark Heath, VP Products XenServer, Citrix
Lars Kurth, Xen.org Community Manager, Citrix

3. Citrix is a cloud
computing
company that
enables mobile
workstyles

4. Gartner, 2012

5. m o b i l e w o r k s t y l e s & c l o u d s e r v i c e s

7. • Efficient resource utilization
• Faster provisioning
• Workload mobility
• Increased uptime
• Enhanced security

8. Mark Moerdler, Bernstein 2012

9. • Less Space
• Less Energy
• Reduced Cost

10. • Even Less Space
• Greener Datacentres
• Even Less Cost

11. UBS Global Investment Research,
August 7, 2012, James F. Hillier.

14. XenServer
XenDesktop
XenApp
NetScaler
CloudPlatform
XenClient
XenClientXT

15. QubesOS
OracleVM
HuaweiUVP
OpenMirage
ErlangOnXen

18. • GPLv2 with DCO
• Governance similar to Linux Kernel
• Citrix is the steward of Xen.org

20. • < 30% code developed by Citrix
• > 10M open source users
• Xen powers the largest clouds
in production

22. HWCPUsMemoryI/O
VM1
Guest OS
Applications
VM0 (or Dom0)
Dom0 Kernel
Drivers
VM2 VMn
Applications
Guest OS
Applications
Guest OS
Toolstack
Scheduler MMU Timers InterruptsConfig
back PV front

23. • Make optimum use of the ARM SOC
• Supports 32 and 64 bit
• Small code base
• Avoid x86 “baggage”

24. ARM SOC
GIC
v2
GT
2 stage
MMU
I/O
Device Tree describes …
Template
clash
ARM Architecture Features for Virtualization
Hypervisor mode: EL2
Kernel mode: EL1
User mode: EL0
HVC

25. ARM Architecture Features for VirtualizationARM SOC
EL2
EL1
EL0
GIC
v2
GT
2 stage
MMU
I/O
Device Tree describes …
Template
clash
HVC
Xen Hypervisor
Dom0
only
Any Xen Guest VM (including Dom0)
Kernel
User Space

26. • No need for Emulation
• No user space run-time on data path
• One virtualization mode
• Xen is easy to port

27. Stefano Stabellini,
Linux Xen ARM Maintainer,2013

29. • Fully functional for ARM v7 & v8
• ARM v7: Versatile Express,
Arndale & Samsung Chromebook
• ARM v8: Fast Model
• Will be released in Xen 4.3

32. m o b i l e w o r k s t y l e s & c l o u d s e r v i c e s

33. m o b i l e w o r k s t y l e s & c l o u d s e r v i c e s

34. • Good Technology Match
• Platform First
• Creates Opportunities …
– for Citrix
– for the Xen Community
– for the Linaro Community