Linaro Virtualization status 10 Apr 2013 (Weeks 13/14) - linaro-dev

12 Apr 2013


      Linaro Virtualization Team's Weekly Report - Weeks 13/14 2013
=============================================================
During the last 2 weeks (27 March - 10 April 2013) the team has been
working on the following areas. More detailed information can be found
on the meeting reports wiki page [0].
Ongoing work
------------
* BOOTLOADER HYP MODE SUPPORT FOR ARMv7 [1]
    by Andre Przywara
* rebase existing Versatile Express patches against upstream u-boot [2]
Done:
            - Reworked patch for Versatile Express to be more reusable
              for other boards.
            - U-Boot patch sent as RFC, waiting for reaction.
* implement HYP command to let u-boot switch into HYP mode [3]
Done:
            - HYP mode switch works reliably.
            - SMP is working too.
            - VExpress patches sent upstream (V3 of the patch set).
            - discovered a bug in Linux 3.9-rc:
                - DMA refactoring broke Versatile Express: NULL pointer
                  exception.
                - Patches already are on ML, but not yet in HEAD
                  (3.9rc5-77)
                - discovered related issue with DMA PL330 on Highbank
                  (Rob@Calxeda seems to care about this)
* ARMv7 KVM GUEST MIGRATION [4]
    by Peter Maydell and Andre Przywara
* QEMU: audit the vexpress model for devices we use which do not
      currently have migration support [5]
        by Peter Maydell
Done:
            - task completed.
            - patches now preliminarily queued in arm-devs.next, though
              if there is a late-breaking issue with one of them it will
              have to be fixed and patches updated.
* QEMU: implement full cp15 sync with kernel [6]
        by Peter Maydell
Done:
            - Some work that was assumed to be already committed last
              year appeared to be still pending - hew sub-task created:
              QEMU: move CPU migration to vmstate [7]
Working on:
            - pending for [7] to complete.
* QEMU: move CPU migration to vmstate [7]
Done:
            - updated patches from Juan Quintela from last year which
              are updating the migration state for the CPU itself to use
              VMState structures.
Working on:
            - testing and tweaking of the updated patches.
* kernel: agree on a data structure to describe timer state [8]
        by Andre Przywara
Working on:
            - reading documentation.
            - thinking about code structure.
            - timer migration prototype.
* ARMv8 KVM QEMU prototype [9]
* Add skeleton ARM64 build patches to local tree [10]
Done:
            - completed this sub-task.
* Add arm64 mach-virt system model skeleton [11]
Working on:
            - only has serial, can add virtio stuff later.
            - in progress.
* Add creating FDT from scratch to mach-virt system model [12]
Working on:
            - in progress, nearly done.
* Add kvm guest creation and launching of armv8/mach-virt [13]
Working on:
            - in progress, just started.
* IN KERNEL SUPPORT FOR KVM ARMv8 [14]
    by Anup Patel and Pranavkumar Sawargaonkar, Geoff Levand
Done:
        - KVM ARMv8 patch set review, fixes suggested (by Geoff).
        - Initial patch set for APM board bring up is reviewed
          internally in APM and is queued for upstreaming in near
          future.
        - real AMRv8 hardware is accessible to Anup and Pranav -
          switched to it for further work.
        - ARMv8 kernel is bootable on the board now.
        - U-Boot is starting the kernel in HYP mode on the board now.
Working on:
        - Debugging the guest part now (on the board). Currently it is
          not booting (still in early debug).
        - Hacky early printk support in kvmtool is to be properly
          submitted to the ML as an RFC.
* CI BRING UP: KVM ARMv7 [15]
    by Riku Voipio
Done:
        - Find out howto include guest image in host image.
        - Create ci.linaro.org jobs for submitting validation tests to
          LAVA for VE TC2.
Working on:
        - Create ci.linaro.org jobs for submitting validation tests to
          LAVA for Arndale.
Links
-----
[0] https://wiki.linaro.org/LEG/Engineering/Virtualization/TeamMeetingReports
[1] http://cards.linaro.org/browse/CARD-361
[2] http://cards.linaro.org/browse/VIRT-70
[3] http://cards.linaro.org/browse/VIRT-71
[4] http://cards.linaro.org/browse/CARD-363
[5] http://cards.linaro.org/browse/VIRT-51
[6] http://cards.linaro.org/browse/VIRT-49
[7] http://cards.linaro.org/browse/VIRT-73
[8] http://cards.linaro.org/browse/VIRT-42
[9] http://cards.linaro.org/browse/CARD-221
[10] http://cards.linaro.org/browse/VIRT-52
[11] http://cards.linaro.org/browse/VIRT-53
[12] http://cards.linaro.org/browse/VIRT-54
[13] http://cards.linaro.org/browse/VIRT-56
[14] http://cards.linaro.org/browse/CARD-362
[15] http://cards.linaro.org/browse/CARD-233
-- 
Best Regards,
Serge Broslavsky serge.broslavsky@linaro.org

Project Manager, Linaro
M: +37129426328  IRC: ototo  Skype: serge.broslavsky
http://linaro.org | Open source software for ARM SoCs