Re: [PATCH MINI-OS] gnttab: drop GNTMAP_can_fail

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Jan Beulich, le jeu. 26 août 2021 12:20:26 +0200, a ecrit:
> There's neither documentation of what this flag is supposed to mean, nor
> any implementation in the hypervisor.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

> --- a/include/xen/grant_table.h
> +++ b/include/xen/grant_table.h
> @@ -627,9 +627,6 @@ DEFINE_XEN_GUEST_HANDLE(gnttab_cache_flu
>  #define _GNTMAP_contains_pte    (4)
>  #define GNTMAP_contains_pte     (1<<_GNTMAP_contains_pte)
>  
> -#define _GNTMAP_can_fail        (5)
> -#define GNTMAP_can_fail         (1<<_GNTMAP_can_fail)
> -
>  /*
>   * Bits to be placed in guest kernel available PTE bits (architecture
>   * dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
>