diff options
| -rw-r--r-- | drivers/hv/channel.c | 2 | ||||
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 2 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 21 |
3 files changed, 22 insertions, 3 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 70a34daa04c1..9303252b2e19 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -181,7 +181,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, open_msg->ringbuffer_gpadlhandle = newchannel->ringbuffer_gpadlhandle; open_msg->downstream_ringbuffer_pageoffset = send_ringbuffer_size >> PAGE_SHIFT; - open_msg->server_contextarea_gpadlhandle = 0; + open_msg->target_vp = newchannel->target_vp; if (userdatalen > MAX_USER_DEFINED_BYTES) { err = -EINVAL; diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index f4d990285d99..56ed45c74d01 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -302,6 +302,8 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr) offer->connection_id; } + newchannel->target_vp = 0; + memcpy(&newchannel->offermsg, offer, sizeof(struct vmbus_channel_offer_channel)); newchannel->monitor_grp = (u8)offer->monitorid / 32; diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index c6e2c44a1be9..8c3cb1fc34d4 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -732,8 +732,15 @@ struct vmbus_channel_open_channel { /* GPADL for the channel's ring buffer. */ u32 ringbuffer_gpadlhandle; - /* GPADL for the channel's server context save area. */ - u32 server_contextarea_gpadlhandle; + /* + * Starting with win8, this field will be used to specify + * the target virtual processor on which to deliver the interrupt for + * the host to guest communication. + * Prior to win8, incoming channel interrupts would only + * be delivered on cpu 0. Setting this value to 0 would + * preserve the earlier behavior. + */ + u32 target_vp; /* * The upstream ring buffer begins at offset zero in the memory @@ -971,6 +978,16 @@ struct vmbus_channel { bool is_dedicated_interrupt; struct hv_input_signal_event_buffer sig_buf; struct hv_input_signal_event *sig_event; + + /* + * Starting with win8, this field will be used to specify + * the target virtual processor on which to deliver the interrupt for + * the host to guest communication. + * Prior to win8, incoming channel interrupts would only + * be delivered on cpu 0. Setting this value to 0 would + * preserve the earlier behavior. + */ + u32 target_vp; }; static inline void set_channel_read_state(struct vmbus_channel *c, bool state) |