diff options
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/misc.json | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/qapi/misc.json b/qapi/misc.json index b21963a176..a667fdf03e 100644 --- a/qapi/misc.json +++ b/qapi/misc.json @@ -192,7 +192,8 @@ # # Information about the guest balloon device. # -# @actual: the number of bytes the balloon currently contains +# @actual: the logical size of the VM in bytes +# Formula used: logical_vm_size = vm_ram_size - balloon_size # # Since: 0.14.0 # @@ -228,7 +229,8 @@ # Emitted when the guest changes the actual BALLOON level. This value is # equivalent to the @actual field return by the 'query-balloon' command # -# @actual: actual level of the guest memory balloon in bytes +# @actual: the logical size of the VM in bytes +# Formula used: logical_vm_size = vm_ram_size - balloon_size # # Note: this event is rate-limited. # @@ -759,7 +761,10 @@ # # Request the balloon driver to change its balloon size. # -# @value: the target size of the balloon in bytes +# @value: the target logical size of the VM in bytes +# We can deduce the size of the balloon using this formula: +# logical_vm_size = vm_ram_size - balloon_size +# From it we have: balloon_size = vm_ram_size - @value # # Returns: - Nothing on success # - If the balloon driver is enabled but not functional because the KVM @@ -777,6 +782,8 @@ # -> { "execute": "balloon", "arguments": { "value": 536870912 } } # <- { "return": {} } # +# With a 2.5GiB guest this command inflated the balloon to 3GiB. +# ## { 'command': 'balloon', 'data': {'value': 'int'} } |