Re: [PATCH for-4.14 v2] mm: fix public declaration of struct xen_mem_acquire_resource

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Thu, Jun 25, 2020 at 04:16:43PM +0200, Roger Pau Monne wrote:
> XENMEM_acquire_resource and it's related structure is currently inside
> a __XEN__ or __XEN_TOOLS__ guarded section to limit it's scope to the
> hypervisor or the toolstack only. This is wrong as the hypercall is
> already being used by the Linux kernel at least, and as such needs to
> be public.
> 
> Also switch the usage of uint64_aligned_t to plain uint64_t, as
> uint64_aligned_t is only to be used by the toolstack. Note that a
> padding field is added on 32bit x86, so that the size of the structure
> is the same.
> 
> No layout structure change. The structure doesn't need to be adjusted
> on 32bit Arm, because guest handlers are already expanded to 64bits.
> 
> Fixes: 3f8f12281dd20 ('x86/mm: add HYPERVISOR_memory_op to acquire guest 
> resources')
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> ---
> Should also be backported.
> ---
> Changes since v1:
>  - Add padding on 32bits so structure size matches between arches and
>    the previous layout is kept.

This is bogus, will send a proper version.

Sorry for the noise, Roger.