[libvirt] [PATCH v2] virsh: Don't output node frequency if unknown

[Martin Kletzander]

Commit ed8155eafbff5c5ca0bdfe84a8388f58b718c2f9 documented that mhz
field in virNodeInfo might be 0 if the frequency is unknown.  Modify
virsh to know about that.

Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
---
v2:
 - added info into manual and reworded that a bit

 tools/virsh-host.c | 3 ++-
 tools/virsh.pod    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/virsh-host.c b/tools/virsh-host.c
index 04ca1e504731..a3ffe0143f11 100644
--- a/tools/virsh-host.c
+++ b/tools/virsh-host.c
@@ -637,7 +637,8 @@ cmdNodeinfo(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
     }
     vshPrint(ctl, "%-20s %s\n", _("CPU model:"), info.model);
     vshPrint(ctl, "%-20s %d\n", _("CPU(s):"), info.cpus);
-    vshPrint(ctl, "%-20s %d MHz\n", _("CPU frequency:"), info.mhz);
+    if (info.mhz)
+        vshPrint(ctl, "%-20s %d MHz\n", _("CPU frequency:"), info.mhz);
     vshPrint(ctl, "%-20s %d\n", _("CPU socket(s):"), info.sockets);
     vshPrint(ctl, "%-20s %d\n", _("Core(s) per socket:"), info.cores);
     vshPrint(ctl, "%-20s %d\n", _("Thread(s) per core:"), info.threads);
diff --git a/tools/virsh.pod b/tools/virsh.pod
index bcfa165ada15..5ee9a966ef02 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -295,7 +295,8 @@ Print the XML representation of the hypervisor sysinfo, if available.
 Returns basic information about the node, like number and type of CPU,
 and size of the physical memory. The output corresponds to virNodeInfo
 structure. Specifically, the "CPU socket(s)" field means number of CPU
-sockets per NUMA cell.
+sockets per NUMA cell. The information libvirt displays is dependent
+upon what each architecture may provide.

 =item B<nodecpumap> [I<--pretty>]

--
2.4.5