Re: Xen 4.21 Development Update [June-July]

[Jürgen Groß <jgross@xxxxxxxx>]

On 05.08.25 20:19, Oleksii Kurochko wrote:
> Hello everyone,
>
> This email only tracks big items for xen.git tree. Please reply for items you
> would like to see in 4.21 so that people have an idea what is going on and
> prioritise accordingly.
>
> You're welcome to provide description and use cases of the feature you're
> working on.
>
> = Timeline =
>
> The current release schedule could be found here:
>    https://wiki.xenproject.org/wiki/Xen_Project_X.YY_Release_Notes
>
> And as a reminder I would like to remind at the of this week we will have
> Last posting date (Fri Aug 08, 2025).
>
> = Updates =
>
> The following items ( the links for them could be found int the list below )
> were moved to completed:
>    [since Jun2 - Aug5]:
>     Added some tags: [4.21], [next-rel(s)] to the list "Full list of items"
>     below.
>     * x86:
>      - kexec: add kexec support to Mini-OS.
And with that:

- PVH xenstore-stubdom live update

>      - x86: memcpy() / memset() (non-)ERMS flavors plus fallout
>     * Arm:
>      - SMMU handling for PCIe Passthrough on ARM.
>      - Add support for R-Car Gen4 PCI host controller.
>      - First chunk for Arm R82 and MPU support.
>      - Enable R52 support for the first chunk of MPU support
>      - ARM split hardware and control domains.
>     * RISC-V:
>      - Introduce basic UART support and interrupts for hypervisor mode.
* Hypervisor:
  - tools: support for per-domain Xenstore features


Juergen

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