[Xen-devel] [PATCH] docs: Specify VCPU hotplug procedure for HVMlite guests

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

HVMlite VCPUs can be added and removed by toggling 'availability'
value of VCPU's xenstore entry.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
---

I am not sure this is really needed since it's no different from how we
do hotplug for PV or HVM/qemu-trad guests.

I may have been a bit too grandiose by describing yesterday's patch as
"add CPU hotplug support". It was really enabling existing functionality.

 docs/misc/hvmlite.markdown | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/misc/hvmlite.markdown b/docs/misc/hvmlite.markdown
index c1b75c6..1a2e866 100644
--- a/docs/misc/hvmlite.markdown
+++ b/docs/misc/hvmlite.markdown
@@ -80,3 +80,8 @@ are used in order to bring up secondary vCPUs:
  * `VCPUOP_down` is used to bring down a vCPU.
 
  * `VCPUOP_is_up` is used to scan the number of available vCPUs.
+
+## VCPU hotplug ##
+
+VCPUs can be hot-plugged or hot-removed by writing "online" or "offline" to
+xenstore's /local/domain/<domain_id>/cpu/<vcpu_id>/availability entry
-- 
2.1.0


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