Re: [PATCH v7 12/12] xen/changelog: Add SVE and "dom0" options to the changelog for Arm

[Bertrand Marquis <Bertrand.Marquis@xxxxxxx>]

Hi Luca,

> On 23 May 2023, at 09:43, Luca Fancellu <Luca.Fancellu@xxxxxxx> wrote:
> 
> Arm now can use the "dom0=" Xen command line option and the support
> for guests running SVE instructions is added, put entries in the
> changelog.
> 
> Mention the "Tech Preview" status and add an entry in SUPPORT.md
> 
> Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
> Acked-by: Henry Wang <Henry.Wang@xxxxxxx> # CHANGELOG

Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>

Cheers
Bertrand

> ---
> Changes from v6:
> - Add Henry's A-by to CHANGELOG
> Changes from v5:
> - Add Tech Preview status and add entry in SUPPORT.md (Bertrand)
> Changes from v4:
> - No changes
> Change from v3:
> - new patch
> ---
> CHANGELOG.md | 3 +++
> SUPPORT.md   | 6 ++++++
> 2 files changed, 9 insertions(+)
> 
> diff --git a/CHANGELOG.md b/CHANGELOG.md
> index 5bfd3aa5c0d5..512b7bdc0fcb 100644
> --- a/CHANGELOG.md
> +++ b/CHANGELOG.md
> @@ -11,6 +11,8 @@ The format is based on [Keep a 
> Changelog](https://keepachangelog.com/en/1.0.0/)
>    cap toolstack provided values.
>  - Ignore VCPUOP_set_singleshot_timer's VCPU_SSHOTTMR_future flag. The only
>    known user doesn't use it properly, leading to in-guest breakage.
> + - The "dom0" option is now supported on Arm and "sve=" sub-option can be 
> used
> +   to enable dom0 guest to use SVE/SVE2 instructions.
> 
> ### Added
>  - On x86, support for features new in Intel Sapphire Rapids CPUs:
> @@ -20,6 +22,7 @@ The format is based on [Keep a 
> Changelog](https://keepachangelog.com/en/1.0.0/)
>    - Bus-lock detection, used by Xen to mitigate (by rate-limiting) the system
>      wide impact of a guest misusing atomic instructions.
>  - xl/libxl can customize SMBIOS strings for HVM guests.
> + - On Arm, Xen supports guests running SVE/SVE2 instructions. (Tech Preview)
> 
> ## 
> [4.17.0](https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=RELEASE-4.17.0)
>  - 2022-12-12
> 
> diff --git a/SUPPORT.md b/SUPPORT.md
> index 6dbed9d5d029..e0fa2246807b 100644
> --- a/SUPPORT.md
> +++ b/SUPPORT.md
> @@ -99,6 +99,12 @@ Extension to the GICv3 interrupt controller to support MSI.
> 
>     Status: Experimental
> 
> +### ARM Scalable Vector Extension (SVE/SVE2)
> +
> +AArch64 guest can use Scalable Vector Extension (SVE/SVE2).
> +
> +    Status: Tech Preview
> +
> ## Guest Type
> 
> ### x86/PV
> -- 
> 2.34.1
>