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authorK. Y. Srinivasan <kys@microsoft.com>2014-02-16 11:34:30 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-18 10:53:48 -0800
commit01325476d6e46185031be4a9bc6443832dbc807c (patch)
tree0c173657fa89e7612b7ccc643e3b443f2123189f /drivers/hv/hv_util.c
parente0270addae23aef8401b1150cbca20b8fb373cd0 (diff)
downloadlinux-01325476d6e46185031be4a9bc6443832dbc807c.tar.bz2
Drivers: hv: Implement the file copy service
Implement the file copy service for Linux guests on Hyper-V. This permits the host to copy a file (over VMBUS) into the guest. This facility is part of "guest integration services" supported on the Windows platform. Here is a link that provides additional details on this functionality: http://technet.microsoft.com/en-us/library/dn464282.aspx In V1 version of the patch I have addressed comments from Olaf Hering <olaf@aepfle.de> and Dan Carpenter <dan.carpenter@oracle.com> In V2 version of this patch I did some minor cleanup (making some globals static). In V4 version of the patch I have addressed all of Olaf's most recent set of comments/concerns. In V5 version of the patch I had addressed Greg's most recent comments. I would like to thank Greg for suggesting that I use misc device; it has significantly simplified the code. In V6 version of the patch I have cleaned up error message based on Olaf's comments. I have also rebased the patch based on the current tip. In this version of the patch, I have addressed the latest comments from Greg. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv/hv_util.c')
-rw-r--r--drivers/hv/hv_util.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index 62dfd246b948..dd761806f0e8 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -28,6 +28,7 @@
#include <linux/reboot.h>
#include <linux/hyperv.h>
+#include "hyperv_vmbus.h"
#define SD_MAJOR 3
#define SD_MINOR 0
@@ -82,6 +83,12 @@ static struct hv_util_service util_vss = {
.util_deinit = hv_vss_deinit,
};
+static struct hv_util_service util_fcopy = {
+ .util_cb = hv_fcopy_onchannelcallback,
+ .util_init = hv_fcopy_init,
+ .util_deinit = hv_fcopy_deinit,
+};
+
static void perform_shutdown(struct work_struct *dummy)
{
orderly_poweroff(true);
@@ -401,6 +408,10 @@ static const struct hv_vmbus_device_id id_table[] = {
{ HV_VSS_GUID,
.driver_data = (unsigned long)&util_vss
},
+ /* File copy GUID */
+ { HV_FCOPY_GUID,
+ .driver_data = (unsigned long)&util_fcopy
+ },
{ },
};