Re: [Xen-devel] [PATCH RFC] xen-block: correctly define structures in public headers

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Tue, 3 Dec 2013, Konrad Rzeszutek Wilk wrote:
> > > If Konrad and Boris agree that breaking the kernel's ABI in this way is
> > > acceptable in this specific case, I'll defer to them.
> > 
> > My opinion as Xen on ARM hypervisor maintainer is that this is the right
> > thing to do in this case.
> 
> Heh. If somebody can guarantee me that (by testing the right variants and
> mentioning this in the git commit) that this does not break x86, then
> I am fine.
> 
> And by 'break x86' I mean that this combination works:
>  32-bit domU on 64-bit dom0
>  64-bit domU on 32-bit dom0
> 
> And perhaps also the obvious:
>  64-bit domU on 64-bit dom0
>  32-bit domU on 32-bit dom0
> 
> Since the xen-blkback has its own version of the structs there is no
> need to change change newer and older version of it.
> 
> As long as that works I am OK sticking it in.
> 
> I think from the ARM perspective it is still in 'experimental' phase
> so anything goes to make it work under ARM.


Roger, can you please test this patch on x86 as suggested by Konrad and
confirm that it doesn't break anything?

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