From: "Andrea Parri (Microsoft)" <parri.andrea@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: kys@microsoft.com, haiyangz@microsoft.com,
sthemmin@microsoft.com, wei.liu@kernel.org,
linux-hyperv@vger.kernel.org, mikelley@microsoft.com,
"Andrea Parri (Microsoft)" <parri.andrea@gmail.com>
Subject: [PATCH v3 1/3] Drivers: hv: vmbus: Introduce and negotiate VMBus protocol version 5.3
Date: Fri, 16 Apr 2021 16:34:47 +0200 [thread overview]
Message-ID: <20210416143449.16185-2-parri.andrea@gmail.com> (raw)
In-Reply-To: <20210416143449.16185-1-parri.andrea@gmail.com>
Hyper-V has added VMBus protocol version 5.3. Allow Linux guests to
negotiate the new version on version of Hyper-V that support it.
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
---
drivers/hv/connection.c | 3 ++-
include/linux/hyperv.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 350e8c5cafa8c..dc19d5ae4373c 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -45,6 +45,7 @@ EXPORT_SYMBOL_GPL(vmbus_proto_version);
* Table of VMBus versions listed from newest to oldest.
*/
static __u32 vmbus_versions[] = {
+ VERSION_WIN10_V5_3,
VERSION_WIN10_V5_2,
VERSION_WIN10_V5_1,
VERSION_WIN10_V5,
@@ -60,7 +61,7 @@ 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_2;
+static uint max_version = VERSION_WIN10_V5_3;
module_param(max_version, uint, S_IRUGO);
MODULE_PARM_DESC(max_version,
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 2c18c8e768efe..3ce36bbb398e9 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -234,6 +234,7 @@ static inline u32 hv_get_avail_to_write_percent(
* 5 . 0 (Newer Windows 10)
* 5 . 1 (Windows 10 RS4)
* 5 . 2 (Windows Server 2019, RS5)
+ * 5 . 3 (Windows Server 2022)
*/
#define VERSION_WS2008 ((0 << 16) | (13))
@@ -245,6 +246,7 @@ static inline u32 hv_get_avail_to_write_percent(
#define VERSION_WIN10_V5 ((5 << 16) | (0))
#define VERSION_WIN10_V5_1 ((5 << 16) | (1))
#define VERSION_WIN10_V5_2 ((5 << 16) | (2))
+#define VERSION_WIN10_V5_3 ((5 << 16) | (3))
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
--
2.25.1
next prev parent reply other threads:[~2021-04-16 14:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-16 14:34 [PATCH v3 0/3] Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Andrea Parri (Microsoft)
2021-04-16 14:34 ` Andrea Parri (Microsoft) [this message]
2021-04-16 15:07 ` [PATCH v3 1/3] Drivers: hv: vmbus: Introduce and negotiate VMBus protocol version 5.3 Michael Kelley
2021-04-16 14:34 ` [PATCH v3 2/3] Drivers: hv: vmbus: Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Andrea Parri (Microsoft)
2021-04-16 14:34 ` [PATCH v3 3/3] Drivers: hv: vmbus: Check for pending channel interrupts before taking a CPU offline Andrea Parri (Microsoft)
2021-04-16 15:11 ` Michael Kelley
2021-04-18 13:04 ` [PATCH v3 0/3] Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Wei Liu
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