Providing a macro for an invalid grant reference would be beneficial for users, especially as some are using the wrong value "0" for that purpose.
Signed-off-by: Juergen Gross <[email protected]> --- xen/include/public/grant_table.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/include/public/grant_table.h b/xen/include/public/grant_table.h index 7fbd1c6d10..af00aacfd3 100644 --- a/xen/include/public/grant_table.h +++ b/xen/include/public/grant_table.h @@ -113,6 +113,8 @@ */ typedef uint32_t grant_ref_t; +#define XEN_GRANT_REF_INVALID ~0U + /* * A grant table comprises a packed array of grant entries in one or more * page frames shared between Xen and a guest. -- 2.34.1
