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-rw-r--r--docs/virtio-balloon-stats.txt5
1 files changed, 3 insertions, 2 deletions
diff --git a/docs/virtio-balloon-stats.txt b/docs/virtio-balloon-stats.txt
index f74612f468..edff5f22a8 100644
--- a/docs/virtio-balloon-stats.txt
+++ b/docs/virtio-balloon-stats.txt
@@ -35,7 +35,8 @@ which will return a dictionary containing:
o A key named last-update, which contains the last stats update
timestamp in seconds. Since this timestamp is generated by the host,
- a buggy guest can't influence its value
+ a buggy guest can't influence its value. The value is 0 if the guest
+ has not updated the stats (yet).
It's also important to note the following:
@@ -49,7 +50,7 @@ It's also important to note the following:
- Polling can be enabled even if the guest doesn't have stats support
or the balloon driver wasn't loaded in the guest. If this is the case
- and stats are queried, an error will be returned
+ and stats are queried, last-update will be 0.
- The polling timer is only re-armed when the guest responds to the
statistics request. This means that if a (buggy) guest doesn't ever