Re: [Xen-devel] [PATCH] xen: Bump __XEN_LATEST_INTERFACE_VERSION__ to 0x00040700

[Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>]

On 09/30/2015 06:23 PM, Jan Beulich wrote:
>>>> On 30.09.15 at 17:16, <rcojocaru@xxxxxxxxxxxxxxx> wrote:
>> VM_EVENT_FLAG_SET_REGISTERS and xc_monitor_emulate_each_rep() are
>> not available in Xen 4.6, hence the bump.
> 
> I don't follow: These are additions, not changes that require
> consumers to adapt their code.

I have code that checks for __XEN_LATEST_INTERFACE_VERSION__ and if it
is 0x00040700 then it uses xc_monitor_emulate_each_rep(), otherwise it
knows it can't - I thought that consumers that want to make use of the
latest API should be able to tell that they're allowed to do so.

But if the Xen convention is to only bump it when the interface is no
longer backward compatible then I've misunderstood (in which case, sorry
for the noise, and also, is there another way to tell which Xen version
I'm compiling against?).


Thanks,
Razvan

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