[PATCH hyperv-next v3 15/15] Drivers: hv: Set the default VMBus version to 6.0
From: Roman Kisel
Date: Tue Jun 03 2025 - 20:47:15 EST
The confidential VMBus is supported by the protocol version
6.0 onwards.
Attempt to establish the VMBus 6.0 connection thus enabling
the confidential VMBus features when available.
Signed-off-by: Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx>
---
drivers/hv/connection.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index eeb472019d69..7cd43463f969 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -51,6 +51,7 @@ EXPORT_SYMBOL_GPL(vmbus_proto_version);
* Linux guests and are not listed.
*/
static __u32 vmbus_versions[] = {
+ VERSION_WIN10_V6_0,
VERSION_WIN10_V5_3,
VERSION_WIN10_V5_2,
VERSION_WIN10_V5_1,
@@ -65,7 +66,7 @@ static __u32 vmbus_versions[] = {
* Maximal VMBus protocol version guests can negotiate. Useful to cap the
* VMBus version for testing and debugging purpose.
*/
-static uint max_version = VERSION_WIN10_V5_3;
+static uint max_version = VERSION_WIN10_V6_0;
module_param(max_version, uint, S_IRUGO);
MODULE_PARM_DESC(max_version,
--
2.43.0