Re: [Xen-devel] [PATCH v2] x86/domctl: Improve XEN_DOMCTL_hypercall_init error handling

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.03.15 at 12:03, <andrew.cooper3@xxxxxxxxxx> wrote:
> EACCES cannot be distinguished against an incorrect DOMCTL_INTERFACE_VERSION,
> and will cause an incorrect "need to rebuild the user-space tool set?" 
> message
> from libxc.
> 
> On the libxc side, put the useful piece of information in the error message,
> rathe than the -1 from do_domctl().
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>


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