Re: [Xen-devel] Xen ARM community call - meeting minutes and date for the next one

[Julien Grall <julien.grall@xxxxxxx>]

Hi all,

A quick reminder, the Community Call will be tomorrow (Wednesday 3rd 
May) at 5PM BST.
For joining the call, please use either:

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Participant code: 4915191

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Regards,

On 20/04/17 17:44, Julien Grall wrote:
> Hi all,
>
> Below the meeting minutes for the previous Xen community call. Feel free to
> reply if I missed some parts.
>
> I suggest to have the next call on the 3rd May at 5PM BST. Any opinions.
>
> Also, do you have any specific topic you would like to talk during this
> call?
>
> Cheers,
>
> == Attendees ==
>
> Stefano, Aporeto
> Julien, ARM
> Oleksandr, EPAM
> Volodymir, EPAM
> Edgar, Xilinx
> Anasatasios, OnApp
>
> == SMC and EL0 App ==
>
> Some SMC call may be sensitive to latency (e.g power down).
>
> Stefano: We would need to be able to decide whether SMC are emulated in
> EL0 or EL2.
>
> Edgar: Shall I wait EL0 App support before resending the series to
> forward SMC on Zynqmp [1]?
>
> Answer: No need to wait, the current approach is fine for now.
>
> Xen EL0 update from Volodymir:
>     * Thread started on xen-devel (see [2])
>     * Stefano suggested to create and share a small example
>     * Plan -> Post the patches on github + writing document
>
> == IOMMU ==
>
> Xen does not support the generic IOMMU bindings.
>
> ACTION: Needs to be fixed ASAP. Potentially on Xen 4.9?
>
> == Reserve region support in DT ==
>
> Reserve region is not mapped in DOM0, though they should be mapped. DMA
> API will allocate memory for those regions.
>
> There was a discussion about that few months ago (see [3]). This would
> need to be followed-up.
>
> == Cross-compiling ==
>
> Anastasios: We are looking at support Xen in Buildroot. The use case is
> a small initramfs.
>
> Potential task: Keep Xen updated on buildroot. Anastasios could help on
> that.
>
> Stefano: Xen is compiling fine with Yocto.
>
> ACTION: Stefano to write a wiki page about using meta-virtualization on
> Yocto.
>
> Release update
> --------------
>
> Stefano might keep a branch around to keep patches which target the next
> release.
>
> [1]
> https://lists.xenproject.org/archives/html/xen-devel/2017-02/msg00634.html
> [2]
> https://lists.xenproject.org/archives/html/xen-devel/2017-04/msg01002.html
> [3] https://lists.xen.org/archives/html/xen-devel/2016-11/msg02295.html
--
Julien Grall

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