Re: [Xen-devel] [PATCH 10/20] xsm: Add IS_PRIV checks to dummy XSM module

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 10.09.12 at 21:49, Daniel De Graaf <dgdegra@xxxxxxxxxxxxx> wrote:
> --- a/xen/include/xsm/xsm.h
> +++ b/xen/include/xsm/xsm.h
> @@ -21,11 +21,7 @@
>  typedef void xsm_op_t;
>  DEFINE_XEN_GUEST_HANDLE(xsm_op_t);
>  
> -#ifdef XSM_ENABLE
> -    #define xsm_call(fn) xsm_ops->fn
> -#else
> -    #define xsm_call(fn) 0
> -#endif
> +#define xsm_call(fn) xsm_ops->fn

So am I getting it right that with XSM disabled this now adds an
indirect call in almost every hypercall? I'm not really in favor of
that, particularly not if that affects hot path ones like the MMU
operations.

Jan


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