diff options
| author |   K. Y. Srinivasan <kys@microsoft.com> | 2012-12-01 06:46:48 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 11:39:14 -0800 |
| commit | abbf3b2aa090b4a6bf22c935924b6467990266da (patch) | |
| tree | 4a4f3a84ac7b05b1608c2ee9552c5899de6981bd /include/linux/hyperv.h | |
| parent | Drivers: hv: Setup a mapping for Hyper-V's notion cpu ID (diff) | |
| download | linux-dev-abbf3b2aa090b4a6bf22c935924b6467990266da.tar.xz linux-dev-abbf3b2aa090b4a6bf22c935924b6467990266da.zip | |
Drivers: hv: Add state to manage incoming channel interrupt load
Add state to bind a channel to a specific VCPU. This will help us better
distribute incoming interrupt load.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 21 |
1 files changed, 19 insertions, 2 deletions
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) |