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| author | Andrea Parri (Microsoft) <parri.andrea@gmail.com> | 2021-04-16 16:34:47 +0200 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-04-18 15:03:11 +0200 |
| commit | 1df53d212c803c0e11a2b10d47ec830d3576b972 (patch) | |
| tree | 5a7ee95c922d67b93dbee6d77ef9c174c037ea6f | |
| parent | Drivers: hv: vmbus: Use after free in __vmbus_open() (diff) | |
| download | linux-1df53d212c803c0e11a2b10d47ec830d3576b972.tar.xz linux-1df53d212c803c0e11a2b10d47ec830d3576b972.zip | |
Drivers: hv: vmbus: Introduce and negotiate VMBus protocol version 5.3
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>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20210416143449.16185-2-parri.andrea@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
| -rw-r--r-- | drivers/hv/connection.c | 3 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index 350e8c5cafa8..dc19d5ae4373 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 2c18c8e768ef..3ce36bbb398e 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) |