Re: [Xen-devel] [PATCH RESEND v5 0/6] xen/arm: live migration support in arndale board

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hello Jaeyong,

I remembered the patch series was in good shape (you may need to rebase 
it on the latest master branch), do you plan to resend it?
It would be awesome to have migration support for ARM for 4.5 (AFAIK the 
release is planned around august)
Regards,

On 08/11/13 07:50, Jaeyong Yoo wrote:
> Note: Resend the patch series since the last one was white-space corrupted.
>
> Hello!
> here goes the v5 patch series. The major changes in this version are the 
> following:
>
>    1) Save and restore the vcpu-related registers in hvm context. (In patch 1)
>
>    2) Rather than using set_memory_map hypercall use GUEST_RAM_BASE macro as 
> the start
>       of physical address of guest RAM and just let the hypervisor know the
>       maximum memory of guest (In patch 2 and 6)
>
>    3) Use bitmap for temporary saving the dirty pages rather than linked list.
>       (In patch 5)
>
>
> Patch 1 implements hvm save/restore (including vcpu).
>
> Patch 2 implements 'get_maximum_gpfn' hypercall
>
> Patch 3 implements 'modify_returncode' for switching the return value of 
> suspend hypercall from domU.
>
> Patch 4 implements base functions for VLPT.
>
> Patch 5 implements dirty-page tracing by using VLPT.
>
> Patch 6 implements the toolstack part for live migration of ARM.
>
> NOTE: In this version, I do not use the p2m walker infrastructure for 
> p2m_change_entry_type_global.
> I think I can apply it after Stefanoâs patch is commited.
>
> Best,
> Jaeyong
>
>
> Alexey Sokolov (2):
>    xen/arm: Implement modify_returncode
>    xen/arm: Implement toolstack for xl restore/save and migrate
>
> Evgeny Fedotov (2):
>    xen/arm: Implement hvm save and restore
>    xen/arm: Implement get_maximum_gpfn hypercall for arm
>
> Jaeyong Yoo (2):
>    xen/arm: Implement virtual-linear page table for guest p2m mapping in
>      live migration
>    xen/arm: Implement hypercall for dirty page tracing
>
>   config/arm32.mk                        |   1 +
>   tools/libxc/Makefile                   |   6 +-
>   tools/libxc/xc_arm_migrate.c           | 712 +++++++++++++++++++++++++++++++++
>   tools/libxc/xc_dom_arm.c               |   4 +-
>   tools/libxc/xc_resume.c                |  25 ++
>   tools/misc/Makefile                    |   4 +-
>   xen/arch/arm/Makefile                  |   1 +
>   xen/arch/arm/domain.c                  |  19 +
>   xen/arch/arm/domctl.c                  |  98 ++++-
>   xen/arch/arm/hvm.c                     | 464 ++++++++++++++++++++-
>   xen/arch/arm/mm.c                      | 237 ++++++++++-
>   xen/arch/arm/p2m.c                     | 206 ++++++++++
>   xen/arch/arm/save.c                    |  66 +++
>   xen/arch/arm/traps.c                   |   9 +
>   xen/common/Makefile                    |   2 +
>   xen/include/asm-arm/arm32/page.h       |  41 +-
>   xen/include/asm-arm/config.h           |   5 +
>   xen/include/asm-arm/domain.h           |  14 +
>   xen/include/asm-arm/hvm/support.h      |  29 ++
>   xen/include/asm-arm/mm.h               |  24 ++
>   xen/include/asm-arm/p2m.h              |   4 +
>   xen/include/asm-arm/processor.h        |   2 +
>   xen/include/public/arch-arm/hvm/save.h | 130 ++++++
>   23 files changed, 2084 insertions(+), 19 deletions(-)
>   create mode 100644 tools/libxc/xc_arm_migrate.c
>   create mode 100644 xen/arch/arm/save.c
>   create mode 100644 xen/include/asm-arm/hvm/support.h
--
Julien Grall

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