Re: [PATCH] stubdom: foreignmemory: Fix build after 0dbb4be739c5

[Juergen Gross <jgross@xxxxxxxx>]

On 13.07.21 16:19, Julien Grall wrote:
> Hi Jan,
>
> On 13/07/2021 15:14, Jan Beulich wrote:
> > > And I don't think it should be named XC_PAGE_*, but rather XEN_PAGE_*.
> > Even that doesn't seem right to me, at least in principle. There 
> > shouldn't
> > be a build time setting when it may vary at runtime. IOW on Arm I think a
> > runtime query to the hypervisor would be needed instead.
> Yes, we want to be able to use the same userspace/OS without rebuilding 
> to a specific hypervisor page size.
This define is used for accessing data of other domains. See the define
for XEN_PAGE_SIZE in xen/include/public/io/ring.h

So it should be a constant (minimal) page size for all hypervisors and
guests of an architecture.


Juergen

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