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Drivers: hv: util: Correctly support ws2008R2 and earlier

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The current code does not correctly negotiate the version numbers for the util
driver when hosted on earlier hosts. The version numbers presented by this
driver were not compatible with the version numbers supported by Windows Server
2008. Fix this problem.

I would like to thank Olaf Hering (ohering@suse.com) for identifying the problem.

Reported-by: Olaf Hering <ohering@suse.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan
2013-09-06 11:49:56 -07:00
committed by Greg Kroah-Hartman
parent 4a704575cc
commit 3a4916050b
4 changed files with 88 additions and 34 deletions
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7
include/linux/hyperv.h
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@@ -30,10 +30,13 @@
/*
* Framework version for util services.
*/
#define UTIL_FW_MINOR 0
#define UTIL_WS2K8_FW_MAJOR 1
#define UTIL_WS2K8_FW_VERSION (UTIL_WS2K8_FW_MAJOR << 16 | UTIL_FW_MINOR)
#define UTIL_FW_MAJOR 3
#define UTIL_FW_MINOR 0
#define UTIL_FW_MAJOR_MINOR (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
#define UTIL_FW_VERSION (UTIL_FW_MAJOR << 16 | UTIL_FW_MINOR)
/*