diff options
Diffstat (limited to 'drivers/hv/connection.c')
| -rw-r--r-- | drivers/hv/connection.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index 3b6dc0017269..d02f1373dd98 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -88,8 +88,16 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, * This has been the behavior pre-win8. This is not * perf issue and having all channel messages delivered on CPU 0 * would be ok. + * For post win8 hosts, we support receiving channel messagges on + * all the CPUs. This is needed for kexec to work correctly where + * the CPU attempting to connect may not be CPU 0. */ - msg->target_vcpu = 0; + if (version >= VERSION_WIN8_1) { + msg->target_vcpu = hv_context.vp_index[get_cpu()]; + put_cpu(); + } else { + msg->target_vcpu = 0; + } /* * Add to list before we send the request since we may |