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authorK. Y. Srinivasan <kys@microsoft.com>2012-03-10 15:32:08 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-13 14:35:25 -0700
commite485ceac9ebd43901ef0ce13622385d509e072e7 (patch)
tree74ba59bdaea967ab3dcc53fabd5dc163b2f2411c /include
parent04bf30115f4ba2beda1efb6cfbae49cdc757f3a9 (diff)
Drivers: hv: Add new message types to enhance KVP
Add additional KVP (Key Value Pair) protocol messages to enhance KVP functionality for Linux guests on Hyper-V. As part of this, patch define an explicit version negoitiation message. Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/hyperv.h30
1 files changed, 27 insertions, 3 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index e57a6c6ee0e..a2d8c547f91 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -149,7 +149,11 @@ struct hv_kvp_exchg_msg_value {
__u32 key_size;
__u32 value_size;
__u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
- __u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
+ union {
+ __u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
+ __u32 value_u32;
+ __u64 value_u64;
+ };
} __attribute__((packed));
struct hv_kvp_msg_enumerate {
@@ -157,11 +161,31 @@ struct hv_kvp_msg_enumerate {
struct hv_kvp_exchg_msg_value data;
} __attribute__((packed));
+struct hv_kvp_msg_get {
+ struct hv_kvp_exchg_msg_value data;
+};
+
+struct hv_kvp_msg_set {
+ struct hv_kvp_exchg_msg_value data;
+};
+
+struct hv_kvp_msg_delete {
+ __u32 key_size;
+ __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+};
+
+struct hv_kvp_register {
+ __u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+};
+
struct hv_kvp_msg {
struct hv_kvp_hdr kvp_hdr;
union {
- struct hv_kvp_msg_enumerate kvp_enum_data;
- char kvp_version[HV_KVP_EXCHANGE_MAX_KEY_SIZE];
+ struct hv_kvp_msg_get kvp_get;
+ struct hv_kvp_msg_set kvp_set;
+ struct hv_kvp_msg_delete kvp_delete;
+ struct hv_kvp_msg_enumerate kvp_enum_data;
+ struct hv_kvp_register kvp_register;
} body;
} __attribute__((packed));