From daab4b1e4dfa0c580f1fcd7a69d65e83b7f54f2c Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Tue, 6 May 2014 15:14:42 -0700 Subject: 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. This patch has been backported to apply against the 3.12 stable tree. Signed-off-by: K. Y. Srinivasan Cc: [3.9+] Signed-off-by: Jiri Slaby --- include/linux/hyperv.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 1835c615948c..b6043a0c629f 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -473,15 +473,18 @@ 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) -- cgit v1.2.3