d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

hyperv/channel: Only cpu0 is supported as channel target cpu on WIN7

Browse Source 
MFC after:	1 week
Sponsored by:	Microsoft OSTC
This commit is contained in:
Sepherosa Ziehau 2016-06-01 07:11:54 +00:00
parent 417afb00cb
commit 5d8fdc7fe4
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sys/dev/hyperv/vmbus/hv_channel_mgmt.c
View File

@ -302,6 +302,12 @@ vmbus_channel_cpu_set(struct hv_vmbus_channel *chan, int cpu)
{
KASSERT(cpu >= 0 && cpu < mp_ncpus, ("invalid cpu %d", cpu));
if (hv_vmbus_protocal_version == HV_VMBUS_VERSION_WS2008 ||
hv_vmbus_protocal_version == HV_VMBUS_VERSION_WIN7) {
/* Only cpu0 is supported */
cpu = 0;
}
chan->target_cpu = cpu;
chan->target_vcpu = VMBUS_PCPU_GET(vmbus_get_softc(), vcpuid, cpu);
@ -359,9 +365,7 @@ vmbus_channel_select_defcpu(struct hv_vmbus_channel *channel)
}
}
if ((hv_vmbus_protocal_version == HV_VMBUS_VERSION_WS2008) ||
(hv_vmbus_protocal_version == HV_VMBUS_VERSION_WIN7) ||
(!is_perf_channel)) {
if (!is_perf_channel) {
/* Stick to cpu0 */
vmbus_channel_cpu_set(channel, 0);
return;