Re: [PATCH v3] xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped

[Juergen Gross <jgross@xxxxxxxx>]

On 19.03.21 21:01, Stefano Stabellini wrote:
> From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
>
> Newer Xen versions expose two Xen feature flags to tell us if the domain
> is directly mapped or not. Only when a domain is directly mapped it
> makes sense to enable swiotlb-xen on ARM.
>
> Introduce a function on ARM to check the new Xen feature flags and also
> to deal with the legacy case. Call the function xen_swiotlb_detect.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
Pushed to xen/tip.git for-linus-5.13


Juergen

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