Re: [Xen-devel] [PATCH V4] tools/libxc, xen/x86: Added xc_set_mem_access_multi()

[Julien Grall <julien.grall@xxxxxxx>]

Hello Razvan,

On 07/09/16 10:12, Razvan Cojocaru wrote:
> Currently it is only possible to set mem_access restrictions only for
> a contiguous range of GFNs (or, as a particular case, for a single GFN).
> This patch introduces a new libxc function taking an array of GFNs.
> The alternative would be to set each page in turn, using a userspace-HV
> roundtrip for each call, and triggering a TLB flush per page set.
>
> Signed-off-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
> Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
>
> ---
> Changes since V3:
>  - Fixed ARM compilation (replaced ENOTSUP with EOPNOTSUPP, which is
>    #defined in the in-tree errno.h). The multi code remains
>    unimplemented for ARM (it depends on " [RFC 21/22] xen/arm: p2m:
>    Re-implement p2m_set_mem_access using p2m_{set, get}_entry", and
>    Julien Grall has gracefully accepted to defer implementation
>    until after both patches go in).
For the ARM bits:

Acked-by: Julien Grall <julien.grall@xxxxxxx>

Regards,

--
Julien Grall

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