From: Jan Beulich <jbeulich@suse.com>
To: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
George Dunlap <george.dunlap@citrix.com>,
Ian Jackson <iwj@xenproject.org>, Julien Grall <julien@xen.org>,
Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>,
Luca Fancellu <luca.fancellu@arm.com>
Subject: [PATCH] public/gnttab: relax v2 recommendation
Date: Thu, 29 Apr 2021 15:10:06 +0200 [thread overview]
Message-ID: <dcd9ede1-9471-6866-4ba7-b6a7664b5e35@suse.com> (raw)
With there being a way to disable v2 support, telling new guests to use
v2 exclusively is not a good suggestion.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
--- a/xen/include/public/grant_table.h
+++ b/xen/include/public/grant_table.h
@@ -121,8 +121,10 @@ typedef uint32_t grant_ref_t;
*/
/*
- * Version 1 of the grant table entry structure is maintained purely
- * for backwards compatibility. New guests should use version 2.
+ * Version 1 of the grant table entry structure is maintained largely for
+ * backwards compatibility. New guests are recommended to support using
+ * version 2 to overcome version 1 limitations, but to be able to fall back
+ * to version 1.
*/
#if __XEN_INTERFACE_VERSION__ < 0x0003020a
#define grant_entry_v1 grant_entry
next reply other threads:[~2021-04-29 13:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 13:10 Jan Beulich [this message]
2021-04-30 7:42 ` [PATCH] public/gnttab: relax v2 recommendation Luca Fancellu
2021-04-30 8:19 ` Julien Grall
2021-04-30 8:36 ` Jan Beulich
2021-05-05 8:12 ` Julien Grall
2021-05-05 8:24 ` Jan Beulich
2021-05-05 8:51 ` Julien Grall
2021-05-05 10:57 ` Jan Beulich
2021-05-05 11:50 ` Julien Grall
2021-05-05 12:18 ` Jan Beulich
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