Re: [Xen-devel] [PATCH v1] getpageframeinfo3: replace hardcoded batchsize with constant

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.03.18 at 17:17, <olaf@xxxxxxxxx> wrote:
> --- a/xen/include/public/domctl.h
> +++ b/xen/include/public/domctl.h
> @@ -137,6 +137,8 @@ DEFINE_XEN_GUEST_HANDLE(xen_domctl_getdomaininfo_t);
>  #define XEN_DOMCTL_PFINFO_BROKEN  (0xdU<<28) /* broken page */
>  #define XEN_DOMCTL_PFINFO_LTAB_MASK (0xfU<<28)
>  
> +#define XEN_GETPAGEFRAMEINFO3_MAX_SIZE 1024U

This is an implementation detail; it shouldn't be made part of the
public interface. If there's a need for user land to know the value,
and if there's currently no way to query it, that's what you
would want to add.

Jan


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