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[PATCH MINI-OS] gnttab: drop GNTMAP_can_fail


  • To: Minios-devel <minios-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 26 Aug 2021 12:20:26 +0200
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  • Cc: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 26 Aug 2021 10:20:40 +0000
  • List-id: Mini-os development list <minios-devel.lists.xenproject.org>

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>

--- 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).




 


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