Re: [PATCH v1 1/3] softmmu/physmem: fallback to opening guest RAM file as readonly in a MAP_PRIVATE mapping

[Peter Xu]

On Thu, Aug 17, 2023 at 05:15:52PM +0200, David Hildenbrand wrote:
> > I don't know how important that requirement was (that commit was a
> > request from Kata Containers).
> 
> Let me take a look if Kata passes "share=on,readonly=on" or
> "share=off,readonly=off".

The question is whether it's good enough if we change the semantics as long
as we guarantee the original purposes of when introducing those flags would
be enough (nvdimm, kata, etc.), as anything introduced in qemu can
potentially be used elsewhere too.

David, could you share your concern on simply "having a new flag, while
keeping all existing flags unchanged on behavior"?  You mentioned it's not
wanted, but I didn't yet see the reason behind.

Thanks,

-- 
Peter Xu