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authorK. Y. Srinivasan <kys@microsoft.com>2014-04-03 18:02:45 -0700
committerShow Liu <show.liu@linaro.org>2014-06-18 11:40:36 +0800
commit8ca4ef571d3e77e177a45a386fb8e84664e0dace (patch)
tree11191497f81d746145066379d0b81de23b25b89a /include/linux
parentf29277087e31ad27f4487c4d78b5b682fcd93704 (diff)
Drivers: hv: vmbus: Negotiate version 3.0 when running on ws2012r2 hosts
commit 03367ef5ea811475187a0732aada068919e14d61 upstream. Only ws2012r2 hosts support the ability to reconnect to the host on VMBUS. This functionality is needed by kexec in Linux. To use this functionality we need to negotiate version 3.0 of the VMBUS protocol. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/hyperv.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 344883dce58..6088058a3e0 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -464,15 +464,17 @@ hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi,
* 0 . 13 (Windows Server 2008)
* 1 . 1 (Windows 7)
* 2 . 4 (Windows 8)
+ * 3 . 0 (Windows 8 R2)
*/
#define VERSION_WS2008 ((0 << 16) | (13))
#define VERSION_WIN7 ((1 << 16) | (1))
#define VERSION_WIN8 ((2 << 16) | (4))
+#define VERSION_WIN8_1 ((3 << 16) | (0))
#define VERSION_INVAL -1
-#define VERSION_CURRENT VERSION_WIN8
+#define VERSION_CURRENT VERSION_WIN8_1
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)