|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v3 00/10] xen/arm: live migration support in arndale board
> -----Original Message----- > From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel- > bounces@xxxxxxxxxxxxx] On Behalf Of Ian Campbell > Sent: Thursday, September 26, 2013 12:59 AM > To: Jaeyong Yoo > Cc: Stefano Stabellini; xen-devel@xxxxxxxxxxxxx > Subject: Re: [Xen-devel] [PATCH v3 00/10] xen/arm: live migration support > in arndale board > > On Thu, 2013-08-01 at 21:57 +0900, Jaeyong Yoo wrote: > > Hi all, > > here goes the v3 patch series for live migration in arndale board. > > Was a v4 of this ever posted (with the vlpt stuff)? If so I appear to have > missed it, sorry. No, I didn't post it yet. > > Feature freeze for Xen 4.4 is currently 18th October[0], we'd really like > to see live migration support before then! (which in reality means it > needs to be posted well before to give ample time for review of what is > likely to be a complex patch set) I also would like to see live migration in Xen 4.4 and I will post the V4 within next week. Then, you have 2 weeks for review before feature freeze. I'm sorry for the delay. Jaeyong. > > Ian. > > [0] http://article.gmane.org/gmane.comp.emulators.xen.devel/168132 > > > > This version applies the comments from v2 patch series, which are > majorly: > > > > 1) just use one timer struct for storing vtimer and ptimer > > for hvm context: patch 1 > > > > 2) for dirty page tracing, use virtual-linear page table for accessing > > guest p2m in xen: patch 6, 7, and 9 > > > > 3) Rather than using hard-coded guest memory map in xen, use the one > from > > toolstack by implementing set/get_memory_map hypercall: patch 3 > > and 10 > > > > This patch series does not support SMP guest migration. We are > > expecting to provide SMP-guests live migration in version 4 patch series. > > > > We also have tested the stability of v3 patch series as follows: > > > > - setup two arndale boards with xen (let's say A and B) > > - launch 3 domUs at A > > - simulataneously migrate 3 domUs from A to B back and forth. > > - we say one round of migration if all 3 domUs migrate > > from A to B and migrate back from B to A. > > > > When we perform the above tests without any load on domUs, the > > migration goes to 80~100 rounds. After that, dom0 suddenly stops > > responding. When we perform with network load (iperf on each domU), > > the migration goes to 2~3 rounds and dom0 stops responding. > > > > After several repeated tests, we gather the PCs where dom0 stucks, and > those are > > - _raw_spin_lock: (called by try_to_wake_up) > > - panic_smp_self_stop > > - cpu_v7_dcache_clean_area > > > > I think those bugs are somehow related to live migration or maybe > > other parts that may result in complicated cause-and-effect chain to > > live migration. In any case, I would like to look into the detail to > > figure out the cause and possibly fix the bugs. > > > > In the meanwhile, I would appreciate your comments to this patch > > series :) > > > > > > Best, > > Jaeyong > > > > lexey Sokolov, Elena Pyatunina, Evgeny Fedotov, and Nikolay Martyanov > (1): > > xen/arm: Implement toolstack for xl restore/save and migrate > > > > Alexey Sokolov (1): > > xen/arm: Implement modify_returncode > > > > Evgeny Fedotov (2): > > xen/arm: Implement set_memory_map hypercall > > xen/arm: Implement get_maximum_gpfn hypercall for arm > > > > Jaeyong Yoo and Evgeny Fedotov (1): > > xen/arm: Implement hvm save and restore > > > > Jaeyong Yoo and Alexey Sokolov (1): > > xen/arm: Add more registers for saving and restoring vcpu registers > > > > Jaeyong Yoo and Elena Pyatunina (2) > > xen/arm: Add handling write fault for dirty-page tracing > > xen/arm: Implement hypercall for dirty page tracing (shadow op) > > > > Jaeyong Yoo (2): > > xen/arm: Implement virtual-linear page table for guest p2m > > mapping in live migration > > xen/arm: Fixing clear_guest_offset macro > > > > config/arm32.mk | 1 + > > tools/include/xen-foreign/reference.size | 2 +- > > tools/libxc/Makefile | 5 + > > tools/libxc/xc_arm_migrate.c | 686 > +++++++++++++++++++++++++++++++ > > tools/libxc/xc_dom_arm.c | 12 +- > > tools/libxc/xc_domain.c | 44 ++ > > tools/libxc/xc_resume.c | 25 ++ > > tools/libxc/xenctrl.h | 23 ++ > > tools/misc/Makefile | 4 + > > xen/arch/arm/Makefile | 2 + > > xen/arch/arm/domain.c | 44 ++ > > xen/arch/arm/domctl.c | 137 +++++- > > xen/arch/arm/hvm.c | 124 ++++++ > > xen/arch/arm/mm.c | 284 ++++++++++++- > > xen/arch/arm/p2m.c | 307 ++++++++++++++ > > xen/arch/arm/save.c | 66 +++ > > xen/arch/arm/setup.c | 3 + > > xen/arch/arm/traps.c | 16 +- > > xen/arch/arm/vlpt.c | 162 ++++++++ > > xen/common/Makefile | 2 + > > xen/include/asm-arm/config.h | 3 + > > xen/include/asm-arm/domain.h | 13 + > > xen/include/asm-arm/guest_access.h | 5 +- > > xen/include/asm-arm/hvm/support.h | 29 ++ > > xen/include/asm-arm/mm.h | 7 + > > xen/include/asm-arm/p2m.h | 4 + > > xen/include/asm-arm/processor.h | 2 + > > xen/include/asm-arm/vlpt.h | 10 + > > xen/include/public/arch-arm.h | 35 ++ > > xen/include/public/arch-arm/hvm/save.h | 41 ++ > > xen/include/public/memory.h | 15 +- > > xen/include/xsm/dummy.h | 5 + > > xen/include/xsm/xsm.h | 5 + > > 33 files changed, 2113 insertions(+), 10 deletions(-) create mode > > 100644 tools/libxc/xc_arm_migrate.c create mode 100644 > > xen/arch/arm/save.c create mode 100644 xen/arch/arm/vlpt.c create > > mode 100644 xen/include/asm-arm/hvm/support.h create mode 100644 > > xen/include/asm-arm/vlpt.h > > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxx > http://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |