Xen Maintainer, Committer and Developer Meeting/XenSummit NA 2012

The Xen Maintainer, Committer and Developer Meeting brings together the world's leading Xen developers to discuss the state of Xen and plan the next development cycle. The Developer meeting takes place on Sunday, Aug 26th from 13:00 to 17:00. The meeting takes place in the same location as XenSummit. Details will be sent to invitees.

This meeting is invitation only and open to Maintainers, Committers and Influential Developers and people in the Xen Community. However, you can request an invite by filling out this form.

Consolidated list of topics

The list below is a consolidated list of agenda items proposed for the meeting. Invited attendees can vote fo ragenda items, which we will use to create an ordered list. We will work through the list one-by-one.

• Xen release and Xen maintenance release management, release cadence and process
• Xen 4.3 planninng (what featureset constitutes Xen 4.3, who plans to do what, etc.)
• Future direction of Xen and PV (including Hybrid)
• Performance and related work (all topics related to performance)
• How does Xen need to evolve to support hardware trends and usages (includes topics such as NUMA)
• How do we respond to EFI and SecureBoot
• Xen and upstream: issues that need discussing (community dynamic, missing Xen features, broad PV support in upstream Linux)
• Misc code related topics (guest invoked transient preemption, Xen code quality - code is getting harder to read, many variants of get_page, shadow paging modes)
• XCI Archivation review (5-10 minutes should suffice)
• Documentation, Testing, Wiki, Support, Community Initiatives (are there any gaps)
• Xen and RHEL6 / CentOS6 (any concrete plans/initiatives to safeguard Xen support in these platforms)
• Graphics/VGA/GPU passthru
• Nested virtualization
• x32 ABI
• What is the possibility of a dom0 powered by HVM
• Xen USB passthru / PVUSB / USB3
• Xen PVSCSI
• Libvirt Xen libxl drivers
• Multiqueue support for Xen PV network drivers

Proposed Topics (Unconsolidated)

ID	Topic	Proposer	Lead	Status
1	Lars Kurth (after discussion at Xen Maintainer, Committer and Developer Call on 6/13)	Xen Release and Maintenance Management, frequency and Cycle	TBD	Proposed
2	Lars Kurth (after discussion at Xen Maintainer, Committer and Developer Call on 6/13)	Xen 4.3 Planninng	GeorgeD	Proposed
3	Stefano Stabellini	Performance and related work. Status of Linux Dom0 Hybrid.	TBD	Proposed
4	Anil Madhavapeddy	MIPS Xen port status; XCP/stub domain/Mirage integration	TBD	Proposed
5	Konrad Rzeszutek Wilk	Future direction of PV with: a) Advancement of Hybrid PV, b) Better perf with PVHVM than PV c) frequent conflicts with x86 maintainers in Linux kernel and d) Want to brainstorm if there is a way to "deprecate" PV and still keep it in the Linux kernel tree. The goal would be to eliminate most of the pv-mmu ops. blkback future.	TBD	Proposed
6	Dario Faggioli	Non Uniform Memory Access (NUMA) support improvement for Xen	TBD	Proposed
7	Matt Wilson	Needs of Cloud providers, operating Xen at scale, broad PV support in upstream Linux, hybrid mode (PV-in-HVM container) dom0, general performance, etc.	TBD	Proposed
8	Don Dugger	x32 ABI; nested virtualization; graphics passthru	TBD	Proposed
9	Mukesh Rathor	many variants of get_page* (tim d or keir); shadow paging modes (tim d or keir)	TBD	Proposed
10	Cherry G. Mathew	hypervisor documentation; what's the possibility of a dom0 powered by hvm	TBD	Proposed
11	Jan Beulich	feature plans for 4.3, improvements to release schedules, guest invoked transient preemption disabling	TBD	Proposed (also see 1 & 2)
12	Lars Kurth	XCI Archivation review (5-10 mins should suffice)	Lars Kurth	Proposed
13	Pasi Karkkainen	Xen testing, CentOS QA, Fedora, wiki, support		Proposed
14	Pasi Karkkainen	Xen and RHEL6 / CentOS6		Proposed
15	Pasi Karkkainen	Various Features (look covered above): multiqueue support for Xen PV network drivers. Xen VGA/GPU passthru. libvirt Xen libxl drivers. Missing Xen features from upstream Linux kernel. Xen USB passthru / PVUSB / USB3. Xen PVSCSI.
16	Daniel Kiper	EFI and SecureBoot madness		Proposed
17	Jeffrey Karrels	Xen security: Where does the security team stand, what is the process for found vulnerabilities. What is going on in the community to find vulnerabilities? (I may be behind in my emails on as I know some of those topics were hit in past months on the list serve)		Proposed
18	Mukesh Rathor	Xen code quality. Code is becoming harder to read. (unnecessary use of ##, single character variable names/parameters, bad field names like "info" in structs).		Proposed